Overnight churning adaptations

LICENSE

@@ -0,0 +1,24 @@
+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <https://unlicense.org>

README.md

@@ -1,9 +1,8 @@
 # a3270
 
 [![Build & Test](https://git.hugfreevikings.wtf/rudi/a3270/actions/workflows/build.yaml/badge.svg)](https://git.hugfreevikings.wtf/rudi/a3270/actions)
-[![Latest Release](https://git.hugfreevikings.wtf/rudi/a3270/badges/release.svg)](https://git.hugfreevikings.wtf/rudi/a3270/releases)
 [![Android](https://img.shields.io/badge/Android-API%2024%2B%20%7C%20Compose-green.svg)](https://developer.android.com)
-[![License](https://img.shields.io/badge/License-MIT%20%2F%20BSD-green.svg)](LICENSE)
+[![License: Unlicense](https://img.shields.io/badge/License-Unlicense-blue.svg)](LICENSE)
 
 An **x3270-aligned IBM 3270 mainframe terminal emulator for Android**, written in Kotlin using **Jetpack Compose** and powered by the `lib3270j` protocol engine from [j3270](https://git.hugfreevikings.wtf/rudi/j3270). Designed for mobile access to IBM z/OS, z/VM, CMS, and TSO systems over TN3270 and TN3270E.
 
@@ -94,14 +93,6 @@ build/outputs/apk/debug/a3270-debug.apk
 
 ---
 
-## 🤝 Contributing
-
-Contributions are welcome! Please feel free to open a bug report or feature request via the Gitea issue tracker.
-
-I have contributed no code to this project, it was entirely written by LLMs with my guidance only.
-
----
-
 ## 📜 Acknowledgements
 
  - [j3270](https://git.hugfreevikings.wtf/rudi/j3270) — Desktop emulator and `lib3270j` protocol engine
@@ -110,3 +101,6 @@ I have contributed no code to this project, it was entirely written by LLMs with
  - Claude Opus 4.6
  - Gemini 3.1 Pro
  - Gemini 3.7 Flash
+ - Gemma4 12B and 26B
+ - GPT-OSS 120B
+ - Qwen3 4B and 32B

build.gradle

@@ -4,15 +4,15 @@ plugins {
 }
 
 android {
-    namespace 'org.pubvm.a3270'
+    namespace 'haus.nightmare.a3270'
     compileSdk 34
 
     defaultConfig {
-        applicationId "org.pubvm.a3270"
+        applicationId "haus.nightmare.a3270"
         minSdk 24
         targetSdk 34
-        versionCode 1
-        versionName "0.1.0"
+        versionCode 6
+        versionName "1.0.1"
     }
 
     buildTypes {
@@ -42,6 +42,13 @@ android {
 if (findProject(':lib3270j') != null) {
     project(':lib3270j') {
         apply plugin: 'java-library'
+        dependencies {
+            testImplementation 'org.junit.jupiter:junit-jupiter:5.10.2'
+            testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+        }
+        test {
+            useJUnitPlatform()
+        }
         java {
             sourceCompatibility = JavaVersion.VERSION_11
             targetCompatibility = JavaVersion.VERSION_11
@@ -62,4 +69,8 @@ dependencies {
     implementation 'androidx.compose.ui:ui-tooling-preview'
     implementation 'androidx.compose.material3:material3'
     implementation 'androidx.lifecycle:lifecycle-viewmodel-compose:2.7.0'
+
+    testImplementation 'junit:junit:4.13.2'
+    testImplementation 'org.json:json:20231013'
+    testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.7.3'
 }

build.sh

@@ -9,9 +9,11 @@ echo "=== Building a3270 (Android APK) ==="
 # Set up JAVA_HOME (prefer JDK 21 if available)
 if [ -d "/Users/rudi/.sdkman/candidates/java/21.0.6-sem" ]; then
     export JAVA_HOME="/Users/rudi/.sdkman/candidates/java/21.0.6-sem"
+elif [ -d "$HOME/.sdkman/candidates/java/21.0.2-open" ]; then
+    export JAVA_HOME="$HOME/.sdkman/candidates/java/21.0.2-open"
 elif [ -z "$JAVA_HOME" ]; then
-    if [ -d "/Users/rudi/.sdkman/candidates/java/current" ]; then
-        export JAVA_HOME="/Users/rudi/.sdkman/candidates/java/current"
+    if [ -d "$HOME/.sdkman/candidates/java/current" ]; then
+        export JAVA_HOME="$HOME/.sdkman/candidates/java/current"
     fi
 fi
 
@@ -19,6 +21,8 @@ fi
 if [ -z "$ANDROID_HOME" ]; then
     if [ -d "$HOME/Library/Android/sdk" ]; then
         export ANDROID_HOME="$HOME/Library/Android/sdk"
+    elif [ -d "$HOME/Android/Sdk" ]; then
+        export ANDROID_HOME="$HOME/Android/Sdk"
     fi
 fi
 
@@ -42,7 +46,7 @@ if [ ! -d "$J3270_PATH/lib3270j" ]; then
 fi
 
 echo "Building debug APK..."
-./gradlew assembleDebug --no-daemon
+./gradlew assembleDebug
 
 APK_PATH="$SCRIPT_DIR/build/outputs/apk/debug/a3270-debug.apk"
 if [ -f "$APK_PATH" ]; then

gradle.properties

@@ -1,2 +1,4 @@
 android.useAndroidX=true
-org.gradle.jvmargs=-Xmx2048m -XX:MaxMetaspaceSize=512m
+org.gradle.jvmargs=-Xmx2048m -XX:+IgnoreUnrecognizedVMOptions -XX:MaxMetaspaceSize=512m
+kotlin.compiler.execution.strategy=in-process
+

src/main/java/haus/nightmare/a3270/MainActivity.kt

@@ -0,0 +1,792 @@
+package haus.nightmare.a3270
+
+import android.content.pm.PackageManager
+import android.os.Build
+import android.os.Bundle
+import android.view.KeyEvent
+import android.widget.Toast
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.viewModels
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.*
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalLifecycleOwner
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.viewinterop.AndroidView
+import androidx.core.view.WindowCompat
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.LifecycleEventObserver
+import android.content.Context
+import android.view.KeyCharacterMap
+import haus.nightmare.lib3270j.protocol.DS3270Constants.*
+import haus.nightmare.a3270.service.TerminalService
+import haus.nightmare.a3270.storage.HostStorage
+import haus.nightmare.a3270.ui.ConnectDialog
+import haus.nightmare.a3270.ui.FileTransferDialog
+import haus.nightmare.a3270.ui.OiaStatusBar
+import haus.nightmare.a3270.ui.SettingsDialog
+import haus.nightmare.a3270.ui.TerminalInputView
+import haus.nightmare.a3270.ui.TerminalView
+import haus.nightmare.a3270.ui.TwoRowKeyBar
+import haus.nightmare.a3270.ui.FieldInspectorDialog
+import haus.nightmare.a3270.ui.FindDialog
+import haus.nightmare.a3270.ui.ScreenExporterDialog
+import haus.nightmare.a3270.ui.ScriptDialog
+import haus.nightmare.a3270.ui.PrinterSessionDialog
+
+import haus.nightmare.a3270.ui.UntrustedCertificateDialog
+
+class MainActivity : ComponentActivity() {
+
+    companion object {
+        init {
+            val rootLogger = java.util.logging.Logger.getLogger("")
+            rootLogger.level = java.util.logging.Level.ALL
+            for (h in rootLogger.handlers) {
+                rootLogger.removeHandler(h)
+            }
+            rootLogger.addHandler(object : java.util.logging.Handler() {
+                override fun publish(record: java.util.logging.LogRecord?) {
+                    if (record == null) return
+                    val msg = record.message ?: ""
+                    val tag = "a3270-" + (record.loggerName?.substringAfterLast('.') ?: "lib3270j")
+                    when {
+                        record.level.intValue() >= java.util.logging.Level.SEVERE.intValue() ->
+                            android.util.Log.e(tag, msg, record.thrown)
+                        record.level.intValue() >= java.util.logging.Level.WARNING.intValue() ->
+                            android.util.Log.w(tag, msg, record.thrown)
+                        record.level.intValue() >= java.util.logging.Level.INFO.intValue() ->
+                            android.util.Log.i(tag, msg, record.thrown)
+                        else ->
+                            android.util.Log.d(tag, msg, record.thrown)
+                    }
+                }
+                override fun flush() {}
+                override fun close() {}
+            })
+        }
+    }
+
+    private val viewModel: TerminalViewModel by viewModels()
+    private val isShiftPressedState = mutableStateOf(false)
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        WindowCompat.setDecorFitsSystemWindows(window, false)
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            if (checkSelfPermission(android.Manifest.permission.POST_NOTIFICATIONS)
+                != PackageManager.PERMISSION_GRANTED) {
+                requestPermissions(arrayOf(android.Manifest.permission.POST_NOTIFICATIONS), 1001)
+            }
+        }
+
+        setContent {
+            MaterialTheme(
+                colorScheme = darkColorScheme(
+                    background = Color.Black,
+                    surface = Color(0xFF1E1E1E),
+                    primary = Color(0xFF339AF0)
+                )
+            ) {
+                MainScreen(
+                    viewModel = viewModel,
+                    isShiftPressed = isShiftPressedState.value,
+                    onClearShift = { isShiftPressedState.value = false }
+                )
+            }
+        }
+    }
+
+    private val log = java.util.logging.Logger.getLogger("a3270-MainActivity")
+    private var deadKey: Int = 0
+
+    private fun getEffectiveUnicodeChar(event: KeyEvent): Int {
+        val cleanMeta = event.metaState and (
+            KeyEvent.META_SHIFT_ON or
+            KeyEvent.META_SHIFT_LEFT_ON or
+            KeyEvent.META_SHIFT_RIGHT_ON or
+            KeyEvent.META_CAPS_LOCK_ON
+        )
+
+        // 1. Try getUnicodeChar with cleanMeta
+        var u = event.getUnicodeChar(cleanMeta)
+        if (u > 0) return u
+
+        // 2. Try unicodeChar property
+        u = event.unicodeChar
+        if (u > 0) return u
+
+        // 3. Try KeyCharacterMap with cleanMeta
+        val kcm = event.keyCharacterMap ?: KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD)
+        u = kcm.get(event.keyCode, cleanMeta)
+        if (u > 0) return u
+
+        // 4. Try KeyCharacterMap with meta = 0
+        u = kcm.get(event.keyCode, 0)
+        if (u > 0) {
+            val shift = event.isShiftPressed || (event.metaState and KeyEvent.META_SHIFT_ON != 0)
+            if (shift) {
+                val c = u.toChar()
+                if (c.isLowerCase()) return c.uppercaseChar().code
+            }
+            return u
+        }
+
+        // 5. Try displayLabel as fallback
+        val label = event.displayLabel
+        if (label >= ' ') {
+            val shift = event.isShiftPressed || (event.metaState and KeyEvent.META_SHIFT_ON != 0)
+            return if (shift) label.uppercaseChar().code else label.lowercaseChar().code
+        }
+
+        return 0
+    }
+
+    @Suppress("DEPRECATION")
+    override fun dispatchKeyEvent(event: KeyEvent): Boolean {
+        val shift = event.isShiftPressed || (event.metaState and KeyEvent.META_SHIFT_ON != 0)
+        if (isShiftPressedState.value != shift) {
+            isShiftPressedState.value = shift
+        }
+
+        // Handle string / multi-character input (e.g. adb input text, barcode scanners, fast text input)
+        if (event.action == KeyEvent.ACTION_MULTIPLE) {
+            if (event.keyCode == KeyEvent.KEYCODE_UNKNOWN) {
+                val chars = event.characters
+                if (!chars.isNullOrEmpty()) {
+                    viewModel.typeString(chars)
+                    return true
+                }
+            } else {
+                val unicode = getEffectiveUnicodeChar(event)
+                if (unicode >= 32) {
+                    val count = maxOf(1, event.repeatCount)
+                    viewModel.typeString(unicode.toChar().toString().repeat(count))
+                    return true
+                }
+            }
+        }
+
+        if (event.action == KeyEvent.ACTION_DOWN) {
+            val keyCode = event.keyCode
+            val ctrl = event.isCtrlPressed || (event.metaState and KeyEvent.META_CTRL_ON != 0)
+            val alt = event.isAltPressed || (event.metaState and KeyEvent.META_ALT_ON != 0)
+
+            // 1. Function Keys (F1..F12 -> PF1..PF12 or PF13..PF24 with Shift or Alt)
+            if (keyCode in KeyEvent.KEYCODE_F1..KeyEvent.KEYCODE_F12) {
+                val fNum = keyCode - KeyEvent.KEYCODE_F1 + 1
+                val pfNum = if (shift || alt) fNum + 12 else fNum
+                val pfAids = intArrayOf(
+                    AID_PF1, AID_PF2, AID_PF3, AID_PF4, AID_PF5, AID_PF6,
+                    AID_PF7, AID_PF8, AID_PF9, AID_PF10, AID_PF11, AID_PF12,
+                    AID_PF13, AID_PF14, AID_PF15, AID_PF16, AID_PF17, AID_PF18,
+                    AID_PF19, AID_PF20, AID_PF21, AID_PF22, AID_PF23, AID_PF24
+                )
+                viewModel.sendAid(pfAids[pfNum - 1])
+                if (shift) {
+                    isShiftPressedState.value = false
+                }
+                return true
+            }
+
+            // 2. Ctrl Shortcuts
+            if (ctrl) {
+                when (keyCode) {
+                    KeyEvent.KEYCODE_V -> {
+                        pasteFromClipboard()
+                        return true
+                    }
+                    KeyEvent.KEYCODE_R -> {
+                        viewModel.resetKeyboard()
+                        return true
+                    }
+                    KeyEvent.KEYCODE_L -> {
+                        viewModel.sendAid(AID_CLEAR)
+                        return true
+                    }
+                    KeyEvent.KEYCODE_Z -> {
+                        viewModel.sendAid(AID_PA1)
+                        return true
+                    }
+                    KeyEvent.KEYCODE_A -> {
+                        viewModel.attn()
+                        return true
+                    }
+                    KeyEvent.KEYCODE_S -> {
+                        viewModel.sysReq()
+                        return true
+                    }
+                    KeyEvent.KEYCODE_DPAD_LEFT -> {
+                        viewModel.wordLeft()
+                        return true
+                    }
+                    KeyEvent.KEYCODE_DPAD_RIGHT -> {
+                        viewModel.wordRight()
+                        return true
+                    }
+                    KeyEvent.KEYCODE_FORWARD_DEL, KeyEvent.KEYCODE_DEL -> {
+                        viewModel.deleteWord()
+                        return true
+                    }
+                    KeyEvent.KEYCODE_HOME -> {
+                        viewModel.cursorHome()
+                        return true
+                    }
+                    KeyEvent.KEYCODE_MOVE_END -> {
+                        viewModel.eraseEof()
+                        return true
+                    }
+                }
+            }
+
+            // 3. Alt Shortcuts (PA keys, Clear, Reset)
+            if (alt) {
+                when (keyCode) {
+                    KeyEvent.KEYCODE_1 -> {
+                        viewModel.sendAid(AID_PA1)
+                        return true
+                    }
+                    KeyEvent.KEYCODE_2 -> {
+                        viewModel.sendAid(AID_PA2)
+                        return true
+                    }
+                    KeyEvent.KEYCODE_3 -> {
+                        viewModel.sendAid(AID_PA3)
+                        return true
+                    }
+                    KeyEvent.KEYCODE_C -> {
+                        viewModel.sendAid(AID_CLEAR)
+                        return true
+                    }
+                    KeyEvent.KEYCODE_R -> {
+                        viewModel.resetKeyboard()
+                        return true
+                    }
+                    KeyEvent.KEYCODE_D -> {
+                        viewModel.deleteWord()
+                        return true
+                    }
+                    KeyEvent.KEYCODE_E -> {
+                        viewModel.fieldEnd()
+                        return true
+                    }
+                    KeyEvent.KEYCODE_L -> {
+                        viewModel.toggleLightPen()
+                        val isLp = viewModel.isLightPenMode.value
+                        Toast.makeText(this, "Light Pen: " + (if (isLp) "ON" else "OFF"), Toast.LENGTH_SHORT).show()
+                        return true
+                    }
+                }
+            }
+
+            // 4. Shift Shortcuts
+            if (shift && keyCode == KeyEvent.KEYCODE_INSERT) {
+                pasteFromClipboard()
+                return true
+            }
+
+            // 5. Standard Navigation & Special Keys
+            when (keyCode) {
+                KeyEvent.KEYCODE_DPAD_LEFT -> {
+                    viewModel.cursorLeft()
+                    return true
+                }
+                KeyEvent.KEYCODE_DPAD_UP -> {
+                    viewModel.cursorUp()
+                    return true
+                }
+                KeyEvent.KEYCODE_DPAD_DOWN -> {
+                    viewModel.cursorDown()
+                    return true
+                }
+                KeyEvent.KEYCODE_DPAD_RIGHT -> {
+                    viewModel.cursorRight()
+                    return true
+                }
+                KeyEvent.KEYCODE_MOVE_HOME -> {
+                    viewModel.cursorHome()
+                    return true
+                }
+                KeyEvent.KEYCODE_MOVE_END -> {
+                    viewModel.eraseEof()
+                    return true
+                }
+                KeyEvent.KEYCODE_PAGE_UP -> {
+                    viewModel.sendAid(AID_PF7)
+                    return true
+                }
+                KeyEvent.KEYCODE_PAGE_DOWN -> {
+                    viewModel.sendAid(AID_PF8)
+                    return true
+                }
+                KeyEvent.KEYCODE_ENTER, KeyEvent.KEYCODE_NUMPAD_ENTER -> {
+                    if (shift) {
+                        viewModel.eraseEof()
+                        isShiftPressedState.value = false
+                    } else {
+                        viewModel.sendAid(AID_ENTER)
+                    }
+                    return true
+                }
+                KeyEvent.KEYCODE_TAB -> {
+                    if (shift) {
+                        viewModel.backTab()
+                        isShiftPressedState.value = false
+                    } else {
+                        viewModel.tab()
+                    }
+                    return true
+                }
+                KeyEvent.KEYCODE_DEL -> {
+                    viewModel.backspace()
+                    return true
+                }
+                KeyEvent.KEYCODE_FORWARD_DEL -> {
+                    viewModel.deleteChar()
+                    return true
+                }
+                KeyEvent.KEYCODE_ESCAPE -> {
+                    if (shift) {
+                        viewModel.eraseInput()
+                        isShiftPressedState.value = false
+                    } else {
+                        viewModel.resetKeyboard()
+                    }
+                    return true
+                }
+                KeyEvent.KEYCODE_BREAK -> {
+                    viewModel.sendAid(AID_PA1)
+                    return true
+                }
+            }
+
+            // 6. Alphanumeric & Symbol Character Input
+            val unicode = getEffectiveUnicodeChar(event)
+            log.info("dispatchKeyEvent DOWN: keyCode=$keyCode, metaState=${event.metaState}, unicode=$unicode, char='${if (unicode > 0) unicode.toChar() else ' '}'")
+            if (unicode > 0) {
+                if ((unicode and KeyCharacterMap.COMBINING_ACCENT) != 0) {
+                    deadKey = unicode and KeyCharacterMap.COMBINING_ACCENT_MASK
+                    return true
+                }
+                val charToType = if (deadKey != 0) {
+                    val combined = KeyCharacterMap.getDeadChar(deadKey, unicode)
+                    deadKey = 0
+                    if (combined != 0) combined.toChar() else unicode.toChar()
+                } else {
+                    unicode.toChar()
+                }
+                if (charToType >= ' ') {
+                    log.info("dispatchKeyEvent typing char: '$charToType'")
+                    viewModel.typeString(charToType.toString())
+                    return true
+                }
+            } else {
+                log.info("dispatchKeyEvent unhandled DOWN keyCode=$keyCode, metaState=${event.metaState}")
+            }
+        }
+
+        if (event.action == KeyEvent.ACTION_UP) {
+            when (event.keyCode) {
+                KeyEvent.KEYCODE_SHIFT_LEFT, KeyEvent.KEYCODE_SHIFT_RIGHT,
+                KeyEvent.KEYCODE_ALT_LEFT, KeyEvent.KEYCODE_ALT_RIGHT,
+                KeyEvent.KEYCODE_CTRL_LEFT, KeyEvent.KEYCODE_CTRL_RIGHT -> {
+                    // Let super handle modifier tracking
+                }
+                else -> {
+                    return true
+                }
+            }
+        }
+
+        return super.dispatchKeyEvent(event)
+    }
+
+    private fun pasteFromClipboard() {
+        val clipboard = getSystemService(Context.CLIPBOARD_SERVICE) as? android.content.ClipboardManager
+        val clip = clipboard?.primaryClip
+        if (clip != null && clip.itemCount > 0) {
+            val text = clip.getItemAt(0)?.coerceToText(this)?.toString()
+            if (!text.isNullOrEmpty()) {
+                viewModel.pasteString(text)
+            }
+        }
+    }
+}
+
+@Composable
+fun MainScreen(
+    viewModel: TerminalViewModel,
+    isShiftPressed: Boolean = false,
+    onClearShift: () -> Unit = {}
+) {
+    val context = LocalContext.current
+    val connectionState by viewModel.connectionState.collectAsState()
+    val screenBuffer by viewModel.screenBuffer.collectAsState()
+    val rows by viewModel.rows.collectAsState()
+    val cols by viewModel.cols.collectAsState()
+    val cursorAddr by viewModel.cursorAddress.collectAsState()
+    val oiaText by viewModel.oiaText.collectAsState()
+    val isKeyboardLocked by viewModel.isKeyboardLocked.collectAsState()
+    val screenVersion by viewModel.screenVersion.collectAsState()
+    val maskHiddenInput by viewModel.maskHiddenInput.collectAsState()
+    val cursorBlink by viewModel.cursorBlink.collectAsState()
+    val hapticFeedback by viewModel.hapticFeedback.collectAsState()
+    val verifyCerts by viewModel.verifyCerts.collectAsState()
+    val defaultGraphicsMode by viewModel.defaultGraphicsMode.collectAsState()
+    val codePage by viewModel.codePage.collectAsState()
+    val searchHighlightAddr by viewModel.searchHighlightAddr.collectAsState()
+    val searchHighlightLen by viewModel.searchHighlightLen.collectAsState()
+    val isTlsActive by viewModel.isTlsActive.collectAsState()
+    val isTlsVerified by viewModel.isTlsVerified.collectAsState()
+    val untrustedCertPrompt by viewModel.untrustedCertPrompt.collectAsState()
+    val ftState by viewModel.ftState.collectAsState()
+    val isLightPenMode by viewModel.isLightPenMode.collectAsState()
+
+    var showConnectDialog by remember { mutableStateOf(false) }
+    var showFtDialog by remember { mutableStateOf(false) }
+    var showSettingsDialog by remember { mutableStateOf(false) }
+    var showFieldInspectorDialog by remember { mutableStateOf(false) }
+    var showFindDialog by remember { mutableStateOf(false) }
+    var showScreenExportDialog by remember { mutableStateOf(false) }
+    var showScriptDialog by remember { mutableStateOf(false) }
+    var showPrinterSessionDialog by remember { mutableStateOf(false) }
+
+    var terminalInputViewRef by remember { mutableStateOf<TerminalInputView?>(null) }
+
+    val lifecycleOwner = LocalLifecycleOwner.current
+    DisposableEffect(lifecycleOwner) {
+        val observer = LifecycleEventObserver { _, event ->
+            if (event == Lifecycle.Event.ON_STOP) {
+                viewModel.isAppInBackground = true
+            } else if (event == Lifecycle.Event.ON_START) {
+                viewModel.isAppInBackground = false
+            }
+        }
+        lifecycleOwner.lifecycle.addObserver(observer)
+        onDispose {
+            lifecycleOwner.lifecycle.removeObserver(observer)
+        }
+    }
+
+    LaunchedEffect(Unit) {
+        val autoHost = HostStorage.getAutoConnectHost(context)
+        if (autoHost != null && !connectionState.isConnected()) {
+            viewModel.connect(
+                autoHost.host,
+                autoHost.port,
+                autoHost.model,
+                autoHost.luName,
+                autoHost.hostType,
+                autoHost.useTls,
+                autoHost.tlsVerifyCert,
+                autoHost.tn3270e,
+                autoHost.graphicsMode,
+                autoHost.codePage,
+                autoHost.proxyType,
+                autoHost.proxyHost,
+                autoHost.proxyPort,
+                autoHost.proxyUsername,
+                autoHost.proxyPassword
+            )
+        }
+    }
+
+    LaunchedEffect(connectionState) {
+        if (connectionState.isConnected()) {
+            val activeHost = viewModel.currentHost.ifBlank { "Mainframe" }
+            TerminalService.start(context, activeHost)
+        } else {
+            TerminalService.stop(context)
+        }
+    }
+
+    Box(
+        modifier = Modifier
+            .fillMaxSize()
+            .background(Color.Black)
+            .windowInsetsPadding(WindowInsets.systemBars)
+            .imePadding()
+    ) {
+        Column(
+            modifier = Modifier.fillMaxSize()
+        ) {
+            // Main 3270 Terminal Screen View
+            TerminalView(
+                screenBuffer = screenBuffer,
+                rows = rows,
+                cols = cols,
+                cursorAddr = cursorAddr,
+                screenVersion = screenVersion,
+                programSymbolManager = viewModel.getClient()?.programSymbolManager,
+                graphicsPlane = viewModel.getClient()?.graphicsPlane,
+                gocaDecoder = viewModel.getGocaDecoder(),
+                isLightPenMode = isLightPenMode,
+                maskHiddenFields = maskHiddenInput,
+                blinkCursor = cursorBlink,
+                searchHighlightAddr = searchHighlightAddr,
+                searchHighlightLen = searchHighlightLen,
+                onTapAddress = { addr ->
+                    viewModel.setCursor(addr)
+                    terminalInputViewRef?.showSoftKeyboard()
+                },
+                onLightPenSelect = { addr ->
+                    viewModel.selectLightPen(addr)
+                    terminalInputViewRef?.showSoftKeyboard()
+                },
+                onGraphicTouch = { clickAddr, px, py ->
+                    viewModel.handleGraphicTouch(clickAddr, px, py)
+                },
+                onPasteText = { text ->
+                    viewModel.pasteString(text)
+                },
+                modifier = Modifier.weight(1f)
+            )
+
+            // Termux-Style Native Input Connection View (Permanent Number Row, No Mode Reset, Lock Support)
+            AndroidView(
+                factory = { ctx ->
+                    TerminalInputView(ctx).apply {
+                        onInputText = { text ->
+                            viewModel.typeString(text)
+                            onClearShift()
+                        }
+                        onSendAid = { aid ->
+                            viewModel.sendAid(aid)
+                        }
+                        onBackspace = {
+                            viewModel.backspace()
+                            onClearShift()
+                        }
+                        onTab = {
+                            viewModel.tab()
+                        }
+                        onBackTab = {
+                            viewModel.backTab()
+                        }
+                        terminalInputViewRef = this
+                    }
+                },
+                update = { inputView ->
+                    terminalInputViewRef = inputView
+                },
+                modifier = Modifier.size(1.dp)
+            )
+
+            // Two Button Rows at the bottom (Row 1: System/Actions/Nav, Row 2: PF1-PF24)
+            TwoRowKeyBar(
+                connectionState = connectionState,
+                isShiftPressed = isShiftPressed,
+                isLightPenMode = isLightPenMode,
+                hapticFeedbackEnabled = hapticFeedback,
+                onClearShift = onClearShift,
+                onConnectClick = { showConnectDialog = true },
+                onDisconnectClick = { viewModel.disconnect() },
+                onFtClick = { showFtDialog = true },
+                onFieldInspectorClick = { showFieldInspectorDialog = true },
+                onFindClick = { showFindDialog = true },
+                onScreenExportClick = { showScreenExportDialog = true },
+                onScriptClick = { showScriptDialog = true },
+                onPrinterSessionClick = { showPrinterSessionDialog = true },
+                onToggleLightPen = { viewModel.toggleLightPen() },
+                onSettingsClick = { showSettingsDialog = true },
+                onSendAid = { aid ->
+                    viewModel.sendAid(aid)
+                    terminalInputViewRef?.showSoftKeyboard()
+                },
+                onReset = {
+                    viewModel.resetKeyboard()
+                    terminalInputViewRef?.showSoftKeyboard()
+                },
+                onTab = {
+                    viewModel.tab()
+                    terminalInputViewRef?.showSoftKeyboard()
+                },
+                onBackTab = {
+                    viewModel.backTab()
+                    terminalInputViewRef?.showSoftKeyboard()
+                },
+                onEraseInput = {
+                    viewModel.eraseInput()
+                    terminalInputViewRef?.showSoftKeyboard()
+                },
+                onEraseEof = {
+                    viewModel.eraseEof()
+                    terminalInputViewRef?.showSoftKeyboard()
+                },
+                onAttn = {
+                    viewModel.attn()
+                    terminalInputViewRef?.showSoftKeyboard()
+                },
+                onSysReq = {
+                    viewModel.sysReq()
+                    terminalInputViewRef?.showSoftKeyboard()
+                },
+                onCursorSelect = {
+                    viewModel.cursorSelect()
+                    terminalInputViewRef?.showSoftKeyboard()
+                },
+                onCursorLeft = {
+                    viewModel.cursorLeft()
+                    terminalInputViewRef?.showSoftKeyboard()
+                },
+                onCursorUp = {
+                    viewModel.cursorUp()
+                    terminalInputViewRef?.showSoftKeyboard()
+                },
+                onCursorDown = {
+                    viewModel.cursorDown()
+                    terminalInputViewRef?.showSoftKeyboard()
+                },
+                onCursorRight = {
+                    viewModel.cursorRight()
+                    terminalInputViewRef?.showSoftKeyboard()
+                }
+            )
+
+            // OIA Status Bar
+            OiaStatusBar(
+                connectionState = connectionState,
+                currentHost = viewModel.currentHost,
+                isKeyboardLocked = isKeyboardLocked,
+                oiaText = oiaText,
+                cursorAddr = cursorAddr,
+                rows = rows,
+                cols = cols,
+                isTls = isTlsActive,
+                isTlsVerified = isTlsVerified,
+                graphicsMode = defaultGraphicsMode,
+                codePage = codePage,
+                isLightPenMode = isLightPenMode,
+                isInsertMode = viewModel.getClient()?.inputProcessor?.isInsertMode ?: false,
+                inhibitReason = viewModel.getClient()?.oia?.inputInhibited ?: 0,
+                luName = viewModel.getClient()?.telnetFSM?.connectedLu ?: ""
+            )
+        }
+    }
+
+    if (showConnectDialog) {
+        ConnectDialog(
+            onDismiss = { showConnectDialog = false },
+            onConnect = { host, port, model, luName, hostType, useTls, tlsVerifyCert, tn3270e, graphicsMode, cp, pType, pHost, pPort, pUser, pPass ->
+                showConnectDialog = false
+                viewModel.connect(host, port, model, luName, hostType, useTls, tlsVerifyCert, tn3270e, graphicsMode, cp, pType, pHost, pPort, pUser, pPass)
+                terminalInputViewRef?.showSoftKeyboard()
+            }
+        )
+    }
+
+    if (showFtDialog) {
+        FileTransferDialog(
+            initialHostType = viewModel.activeHostType,
+            ftProgressState = ftState,
+            client = viewModel.getClient(),
+            onDismiss = { showFtDialog = false },
+            onStartTransfer = { config ->
+                viewModel.startFileTransfer(config) { error ->
+                    if (error != null) {
+                        Toast.makeText(context, error, Toast.LENGTH_LONG).show()
+                    }
+                }
+            },
+            onCancelTransfer = {
+                viewModel.cancelFileTransfer()
+            }
+        )
+    }
+
+    if (showSettingsDialog) {
+        SettingsDialog(
+            initialMaskHiddenInput = maskHiddenInput,
+            initialCursorBlink = cursorBlink,
+            initialHapticFeedback = hapticFeedback,
+            initialVerifyCerts = verifyCerts,
+            initialDefaultGraphicsMode = defaultGraphicsMode,
+            initialDefaultCodePage = codePage,
+            onDismiss = { showSettingsDialog = false },
+            onSave = { mask, blink, haptic, verify, gfx, defaultCp ->
+                showSettingsDialog = false
+                viewModel.updateSettings(mask, blink, haptic, verify, gfx, defaultCp)
+                terminalInputViewRef?.showSoftKeyboard()
+            }
+        )
+    }
+
+    if (showFieldInspectorDialog) {
+        FieldInspectorDialog(
+            client = viewModel.getClient(),
+            screenVersion = screenVersion,
+            onDismiss = { showFieldInspectorDialog = false },
+            onJumpToField = { addr ->
+                viewModel.setCursor(addr)
+                terminalInputViewRef?.showSoftKeyboard()
+            }
+        )
+    }
+
+    if (showFindDialog) {
+        FindDialog(
+            cols = cols,
+            onDismiss = { showFindDialog = false },
+            onFind = { query: String, matchCase: Boolean, forward: Boolean ->
+                viewModel.find(query, matchCase, forward)
+            },
+            onClearHighlight = {
+                viewModel.clearSearchHighlight()
+            }
+        )
+    }
+
+    if (showScreenExportDialog) {
+        ScreenExporterDialog(
+            screenBuffer = screenBuffer,
+            rows = rows,
+            cols = cols,
+            programSymbolManager = viewModel.getClient()?.programSymbolManager,
+            graphicsPlane = viewModel.getClient()?.graphicsPlane,
+            maskHidden = maskHiddenInput,
+            onDismiss = { showScreenExportDialog = false }
+        )
+    }
+
+    if (showScriptDialog) {
+        ScriptDialog(
+            onDismiss = { showScriptDialog = false },
+            onExecuteScript = { script: String, onStatus: (String) -> Unit, onComplete: (String?) -> Unit ->
+                viewModel.executeScript(script, onStatus, onComplete)
+            }
+        )
+    }
+
+    if (showPrinterSessionDialog) {
+        val activeHost = viewModel.currentHost.ifBlank { "127.0.0.1" }
+        PrinterSessionDialog(
+            initialHost = activeHost,
+            initialCodePage = codePage,
+            initialUseTls = isTlsActive,
+            onDismiss = { showPrinterSessionDialog = false }
+        )
+    }
+
+    val prompt = untrustedCertPrompt
+    if (prompt != null) {
+        UntrustedCertificateDialog(
+            host = prompt.host,
+            port = prompt.port,
+            chain = prompt.chain,
+            exception = prompt.exception,
+            onAccept = {
+                viewModel.resolveUntrustedCert(true)
+            },
+            onReject = {
+                viewModel.resolveUntrustedCert(false)
+            }
+        )
+    }
+}

src/main/java/haus/nightmare/a3270/ft/FileTransfer.kt

@@ -0,0 +1,248 @@
+package haus.nightmare.a3270.ft
+
+import android.os.Handler
+import android.os.Looper
+import haus.nightmare.lib3270j.Telnet3270Client
+import haus.nightmare.lib3270j.ft.FTConfig
+import haus.nightmare.lib3270j.ft.FTConstants.FTState
+import haus.nightmare.lib3270j.ft.FTCut
+import haus.nightmare.lib3270j.ft.FTDft
+import java.io.File
+import java.io.IOException
+import java.util.Timer
+import java.util.TimerTask
+import java.util.logging.Logger
+
+/**
+ * Android coordinator for IND$FILE file transfers.
+ * Manages the transfer state machine, timeouts, and coordinates between
+ * UI, Telnet3270Client, and lower-level CUT/DFT protocol handlers.
+ */
+class FileTransfer(
+    private val client: Telnet3270Client,
+    private val callback: FileTransferCallback
+) : FTCut.FTCutListener, FTDft.FTDftListener {
+
+    private val log = Logger.getLogger(FileTransfer::class.java.name)
+    private val mainHandler = Handler(Looper.getMainLooper())
+
+    enum class FTMode {
+        UNKNOWN, CUT, DFT
+    }
+
+    interface FileTransferCallback {
+        fun onTransferStarted()
+        fun onTransferRunning()
+        fun onBytesTransferred(bytes: Long)
+        fun onTransferComplete(message: String)
+        fun onTransferAborted(error: String)
+    }
+
+    private var currentConfig: FTConfig? = null
+    private var localFile: File? = null
+    private var state = FTState.NONE
+    private var activeMode = FTMode.UNKNOWN
+
+    private var cutHandler: FTCut? = null
+    private var dftHandler: FTDft? = null
+
+    private var timeoutTimer: Timer? = null
+    private val startTimeoutMs = 30000L // 30 seconds
+
+    fun startTransfer(config: FTConfig): String? {
+        if (state != FTState.NONE) {
+            return "A transfer is already in progress."
+        }
+
+        val validationError = config.validate()
+        if (validationError != null) {
+            return validationError
+        }
+
+        this.currentConfig = config
+        this.localFile = File(config.localFilename)
+        this.activeMode = FTMode.UNKNOWN
+
+        // Check overwrite
+        if (config.isReceive && !config.isAppend && !config.isOverwrite) {
+            if (localFile?.exists() == true) {
+                return "Local file already exists and overwrite is not permitted."
+            }
+        }
+
+        // Initialize protocol handlers lazily
+        if (cutHandler == null) {
+            cutHandler = FTCut(
+                client.screenBuffer,
+                client.inputProcessor,
+                client.translator,
+                this
+            )
+        }
+        if (dftHandler == null) {
+            dftHandler = FTDft(
+                client.inputProcessor,
+                client.translator,
+                this
+            )
+            client.dataStreamProcessor.setFTDft(dftHandler)
+        }
+
+        // Build and type the IND$FILE command
+        val command = config.buildCommand()
+        log.info("Starting IND\$FILE transfer with command: $command")
+
+        // Erase field and verify it can hold the command
+        val capacity = client.inputProcessor.kybdPrime()
+        if (capacity < 0) {
+            cleanupHandlers(false)
+            return when (capacity) {
+                -1 -> "Keyboard is locked."
+                -3 -> "No unprotected input field found on screen."
+                else -> "Cannot start transfer from current screen state."
+            }
+        }
+        if (capacity < command.length) {
+            cleanupHandlers(false)
+            return "Current input field is too small for IND\$FILE command ($capacity chars max)."
+        }
+
+        setState(FTState.AWAIT_ACK)
+        client.emulateInput(command + "\n")
+
+        startTimeout()
+        mainHandler.post { callback.onTransferStarted() }
+
+        return null
+    }
+
+    fun cancel() {
+        if (state == FTState.RUNNING || state == FTState.AWAIT_ACK) {
+            log.info("User cancelled transfer")
+            setState(FTState.ABORT_WAIT)
+        } else if (state != FTState.NONE) {
+            log.info("Forcing cancel from state $state")
+            completeTransfer("Transfer cancelled.")
+            mainHandler.post { callback.onTransferAborted("Cancelled by user.") }
+        }
+    }
+
+    fun reset() {
+        log.info("Force resetting FileTransfer state from $state")
+        completeTransfer("Reset")
+    }
+
+    fun isTransferActive(): Boolean = state != FTState.NONE
+
+    fun getActiveMode(): FTMode = activeMode
+
+    fun onScreenUpdated() {
+        if ((activeMode == FTMode.CUT || activeMode == FTMode.UNKNOWN) &&
+            (state == FTState.AWAIT_ACK || state == FTState.RUNNING || state == FTState.ABORT_WAIT)) {
+            cutHandler?.processScreenUpdate()
+        }
+    }
+
+    private fun startTimeout() {
+        cancelTimeout()
+        timeoutTimer = Timer("FTTimeout", true).apply {
+            schedule(object : TimerTask() {
+                override fun run() {
+                    mainHandler.post {
+                        if (state == FTState.AWAIT_ACK) {
+                            log.warning("Transfer start timeout")
+                            completeTransfer("Transfer failed to start within 30 seconds.")
+                            callback.onTransferAborted("Transfer start timeout.")
+                        }
+                    }
+                }
+            }, startTimeoutMs)
+        }
+    }
+
+    private fun cancelTimeout() {
+        timeoutTimer?.cancel()
+        timeoutTimer = null
+    }
+
+    private fun cleanupHandlers(success: Boolean) {
+        cutHandler?.cleanup()
+        dftHandler?.cleanup()
+
+        if (!success && currentConfig != null && currentConfig?.isReceive == true && !currentConfig!!.isAppend) {
+            if (state != FTState.NONE && state != FTState.AWAIT_ACK && localFile != null && localFile!!.exists()) {
+                log.info("Cleaning up incomplete download: ${localFile!!.absolutePath}")
+                localFile!!.delete()
+            }
+        }
+    }
+
+    private fun completeTransfer(errorMessage: String?) {
+        cancelTimeout()
+        val success = (errorMessage == null)
+        cleanupHandlers(success)
+        setState(FTState.NONE)
+        activeMode = FTMode.UNKNOWN
+        currentConfig = null
+    }
+
+    override fun onCutRunning() {
+        handleTransferRunning(FTMode.CUT)
+    }
+
+    override fun onDftRunning() {
+        handleTransferRunning(FTMode.DFT)
+    }
+
+    private fun handleTransferRunning(mode: FTMode) {
+        if (activeMode == FTMode.UNKNOWN) {
+            activeMode = mode
+            log.info("FT mode established: $activeMode")
+            try {
+                if (activeMode == FTMode.DFT) {
+                    dftHandler?.initTransfer(localFile)
+                } else {
+                    cutHandler?.initTransfer(localFile)
+                }
+            } catch (e: IOException) {
+                log.warning("Failed to open local file for $activeMode: ${e.message}")
+                onTransferAborted("Failed to open local file: ${e.message}")
+                return
+            }
+        }
+
+        cancelTimeout()
+        setState(FTState.RUNNING)
+        mainHandler.post { callback.onTransferRunning() }
+    }
+
+    override fun onTransferComplete(errorMessage: String?) {
+        completeTransfer(errorMessage)
+        mainHandler.post {
+            if (errorMessage == null) {
+                callback.onTransferComplete("File transfer complete.")
+            } else {
+                callback.onTransferAborted(errorMessage)
+            }
+        }
+    }
+
+    override fun onTransferAborted(errorMessage: String?) {
+        completeTransfer(errorMessage)
+        mainHandler.post { callback.onTransferAborted(errorMessage ?: "Transfer aborted") }
+    }
+
+    override fun onBytesTransferred(bytes: Long) {
+        mainHandler.post { callback.onBytesTransferred(bytes) }
+    }
+
+    override fun getCurrentState(): FTState = state
+
+    override fun setState(state: FTState) {
+        this.state = state
+    }
+
+    override fun getConfig(): FTConfig? = currentConfig
+
+    override fun getLocalFile(): File? = localFile
+}

src/main/java/haus/nightmare/a3270/service/TerminalService.kt

@@ -1,4 +1,4 @@
-package org.pubvm.a3270.service
+package haus.nightmare.a3270.service
 
 import android.app.Notification
 import android.app.NotificationChannel
@@ -10,8 +10,8 @@ import android.content.Intent
 import android.os.Build
 import android.os.IBinder
 import androidx.core.app.NotificationCompat
-import org.pubvm.a3270.MainActivity
-import org.pubvm.a3270.R
+import haus.nightmare.a3270.MainActivity
+import haus.nightmare.a3270.R
 
 class TerminalService : Service() {
 

src/main/java/haus/nightmare/a3270/storage/AppSettings.kt

@@ -0,0 +1,67 @@
+package haus.nightmare.a3270.storage
+
+import android.content.Context
+import android.content.SharedPreferences
+
+object AppSettings {
+    private const val PREFS_NAME = "a3270_settings"
+    private const val KEY_MASK_HIDDEN_INPUT = "mask_hidden_input"
+    private const val KEY_CURSOR_BLINK = "cursor_blink"
+    private const val KEY_HAPTIC_FEEDBACK = "haptic_feedback"
+
+    private const val KEY_VERIFY_CERTS = "verify_certs"
+    private const val KEY_DEFAULT_GRAPHICS_MODE = "default_graphics_mode"
+    private const val KEY_DEFAULT_CODE_PAGE = "default_code_page"
+
+    private fun getPrefs(context: Context): SharedPreferences {
+        return context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE)
+    }
+
+    fun isMaskHiddenInputEnabled(context: Context): Boolean {
+        return getPrefs(context).getBoolean(KEY_MASK_HIDDEN_INPUT, true)
+    }
+
+    fun setMaskHiddenInputEnabled(context: Context, enabled: Boolean) {
+        getPrefs(context).edit().putBoolean(KEY_MASK_HIDDEN_INPUT, enabled).apply()
+    }
+
+    fun isCursorBlinkEnabled(context: Context): Boolean {
+        return getPrefs(context).getBoolean(KEY_CURSOR_BLINK, true)
+    }
+
+    fun setCursorBlinkEnabled(context: Context, enabled: Boolean) {
+        getPrefs(context).edit().putBoolean(KEY_CURSOR_BLINK, enabled).apply()
+    }
+
+    fun isHapticFeedbackEnabled(context: Context): Boolean {
+        return getPrefs(context).getBoolean(KEY_HAPTIC_FEEDBACK, true)
+    }
+
+    fun setHapticFeedbackEnabled(context: Context, enabled: Boolean) {
+        getPrefs(context).edit().putBoolean(KEY_HAPTIC_FEEDBACK, enabled).apply()
+    }
+
+    fun isVerifyCertsEnabled(context: Context): Boolean {
+        return getPrefs(context).getBoolean(KEY_VERIFY_CERTS, true)
+    }
+
+    fun setVerifyCertsEnabled(context: Context, enabled: Boolean) {
+        getPrefs(context).edit().putBoolean(KEY_VERIFY_CERTS, enabled).apply()
+    }
+
+    fun getDefaultGraphicsMode(context: Context): String {
+        return getPrefs(context).getString(KEY_DEFAULT_GRAPHICS_MODE, "BOTH") ?: "BOTH"
+    }
+
+    fun setDefaultGraphicsMode(context: Context, mode: String) {
+        getPrefs(context).edit().putString(KEY_DEFAULT_GRAPHICS_MODE, mode).apply()
+    }
+
+    fun getDefaultCodePage(context: Context): String {
+        return getPrefs(context).getString(KEY_DEFAULT_CODE_PAGE, "037") ?: "037"
+    }
+
+    fun setDefaultCodePage(context: Context, codePage: String) {
+        getPrefs(context).edit().putString(KEY_DEFAULT_CODE_PAGE, codePage).apply()
+    }
+}

src/main/java/haus/nightmare/a3270/storage/HostStorage.kt

@@ -0,0 +1,189 @@
+package haus.nightmare.a3270.storage
+
+import android.content.Context
+import android.content.SharedPreferences
+import org.json.JSONArray
+import org.json.JSONObject
+import java.util.UUID
+
+data class SavedHost(
+    val id: String = UUID.randomUUID().toString(),
+    val name: String,
+    val host: String,
+    val port: Int = 23,
+    val model: Int = 2,
+    val luName: String = "",
+    val autoConnect: Boolean = false,
+    val hostType: String = "TSO",
+    val useTls: Boolean = false,
+    val tlsVerifyCert: Boolean = true,
+    val tn3270e: Boolean = true,
+    val graphicsMode: String = "BOTH",
+    val codePage: String = "037",
+    val proxyType: String = "NONE",
+    val proxyHost: String = "",
+    val proxyPort: Int = 0,
+    val proxyUsername: String = "",
+    val proxyPassword: String = ""
+) {
+    fun toJson(): JSONObject {
+        return JSONObject().apply {
+            put("id", id)
+            put("name", name)
+            put("host", host)
+            put("port", port)
+            put("model", model)
+            put("luName", luName)
+            put("autoConnect", autoConnect)
+            put("hostType", hostType)
+            put("useTls", useTls)
+            put("tlsVerifyCert", tlsVerifyCert)
+            put("tn3270e", tn3270e)
+            put("graphicsMode", graphicsMode)
+            put("codePage", codePage)
+            put("proxyType", proxyType)
+            put("proxyHost", proxyHost)
+            put("proxyPort", proxyPort)
+            put("proxyUsername", proxyUsername)
+            put("proxyPassword", proxyPassword)
+        }
+    }
+
+    companion object {
+        fun fromJson(json: JSONObject): SavedHost {
+            return SavedHost(
+                id = json.optString("id", UUID.randomUUID().toString()),
+                name = json.optString("name", "Mainframe"),
+                host = json.optString("host", "127.0.0.1"),
+                port = json.optInt("port", 23),
+                model = json.optInt("model", 2),
+                luName = json.optString("luName", ""),
+                autoConnect = json.optBoolean("autoConnect", false),
+                hostType = json.optString("hostType", "TSO"),
+                useTls = json.optBoolean("useTls", false),
+                tlsVerifyCert = json.optBoolean("tlsVerifyCert", true),
+                tn3270e = json.optBoolean("tn3270e", true),
+                graphicsMode = json.optString("graphicsMode", "BOTH"),
+                codePage = json.optString("codePage", "037"),
+                proxyType = json.optString("proxyType", "NONE"),
+                proxyHost = json.optString("proxyHost", ""),
+                proxyPort = json.optInt("proxyPort", 0),
+                proxyUsername = json.optString("proxyUsername", ""),
+                proxyPassword = json.optString("proxyPassword", "")
+            )
+        }
+    }
+}
+
+object HostStorage {
+    private const val PREFS_NAME = "a3270_host_prefs"
+    private const val KEY_SAVED_HOSTS = "saved_hosts"
+
+    private fun getPrefs(context: Context): SharedPreferences {
+        return context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE)
+    }
+
+    fun getSavedHosts(context: Context): List<SavedHost> {
+        val jsonStr = getPrefs(context).getString(KEY_SAVED_HOSTS, null) ?: return emptyList()
+        val list = mutableListOf<SavedHost>()
+        try {
+            val jsonArray = JSONArray(jsonStr)
+            for (i in 0 until jsonArray.length()) {
+                val obj = jsonArray.getJSONObject(i)
+                val saved = SavedHost.fromJson(obj)
+                val effective = if (saved.graphicsMode == "PROGRAMMED_SYMBOLS") {
+                    saved.copy(graphicsMode = "BOTH")
+                } else {
+                    saved
+                }
+                list.add(effective)
+            }
+        } catch (e: Exception) {
+            e.printStackTrace()
+        }
+        return list
+    }
+
+    fun saveHost(context: Context, host: SavedHost) {
+        val currentHosts = getSavedHosts(context).toMutableList()
+        val index = currentHosts.indexOfFirst { it.id == host.id }
+
+        // If this host is set to autoConnect, unset autoConnect on all others
+        val updatedHost = if (host.autoConnect) {
+            currentHosts.indices.forEach { i ->
+                currentHosts[i] = currentHosts[i].copy(autoConnect = false)
+            }
+            host
+        } else {
+            host
+        }
+
+        if (index >= 0) {
+            currentHosts[index] = updatedHost
+        } else {
+            currentHosts.add(updatedHost)
+        }
+
+        saveAll(context, currentHosts)
+    }
+
+    fun deleteHost(context: Context, hostId: String) {
+        val currentHosts = getSavedHosts(context).filter { it.id != hostId }
+        saveAll(context, currentHosts)
+    }
+
+    val AVAILABLE_CODE_PAGES = listOf(
+        "037" to "037 - US / Canada / Brazil",
+        "1047" to "1047 - IBM Open Systems / z/OS Unix",
+        "500" to "500 - International Latin-1",
+        "273" to "273 - Germany / Austria",
+        "277" to "277 - Denmark / Norway",
+        "278" to "278 - Sweden / Finland",
+        "280" to "280 - Italy",
+        "284" to "284 - Spain / Latin America",
+        "285" to "285 - United Kingdom",
+        "297" to "297 - France",
+        "420" to "420 - Arabic Bilingual",
+        "424" to "424 - Hebrew (with Latin)",
+        "803" to "803 - Hebrew Character Set",
+        "838" to "838 - Thai Extended",
+        "1160" to "1160 - Thai Euro",
+        "870" to "870 - Eastern Europe / Latin-2",
+        "871" to "871 - Iceland",
+        "875" to "875 - Greece (Greek)",
+        "880" to "880 - Cyrillic (Russian)",
+        "1025" to "1025 - Cyrillic Multilingual",
+        "1123" to "1123 - Cyrillic Ukraine",
+        "1154" to "1154 - Cyrillic Euro",
+        "905" to "905 - Turkey (Latin-5)",
+        "1026" to "1026 - Turkey (Turkish)",
+        "1155" to "1155 - Turkey Euro",
+        "1140" to "1140 - US / Canada (Euro €)",
+        "1141" to "1141 - Germany / Austria (Euro €)",
+        "1142" to "1142 - Denmark / Norway (Euro €)",
+        "1143" to "1143 - Sweden / Finland (Euro €)",
+        "1144" to "1144 - Italy (Euro €)",
+        "1145" to "1145 - Spain / Latin America (Euro €)",
+        "1146" to "1146 - United Kingdom (Euro €)",
+        "1147" to "1147 - France (Euro €)",
+        "1148" to "1148 - International (Euro €)",
+        "1149" to "1149 - Iceland (Euro €)",
+        "930" to "930 - Japanese Katakana Mixed DBCS",
+        "939" to "939 - Japanese Latin Mixed DBCS",
+        "935" to "935 - Simplified Chinese Mixed DBCS",
+        "937" to "937 - Traditional Chinese Mixed DBCS",
+        "1388" to "1388 - Simplified Chinese Extended DBCS",
+        "1371" to "1371 - Traditional Chinese Extended DBCS",
+        "933" to "933 - Korean Mixed DBCS"
+    )
+
+    fun getAutoConnectHost(context: Context): SavedHost? {
+        return getSavedHosts(context).firstOrNull { it.autoConnect }
+    }
+
+    private fun saveAll(context: Context, hosts: List<SavedHost>) {
+        val array = JSONArray()
+        hosts.forEach { array.put(it.toJson()) }
+        getPrefs(context).edit().putString(KEY_SAVED_HOSTS, array.toString()).apply()
+    }
+}

src/main/java/haus/nightmare/a3270/ui/ConnectDialog.kt

@@ -0,0 +1,771 @@
+package haus.nightmare.a3270.ui
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.border
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.focus.focusRequester
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalSoftwareKeyboardController
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.text.input.KeyboardCapitalization
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.compose.ui.window.Dialog
+import androidx.compose.ui.window.DialogProperties
+import haus.nightmare.a3270.storage.HostStorage
+import haus.nightmare.a3270.storage.SavedHost
+
+private val TerminalKeyboardOptions = KeyboardOptions(
+    capitalization = KeyboardCapitalization.None,
+    autoCorrect = false,
+    keyboardType = KeyboardType.Ascii
+)
+
+@Composable
+fun ConnectDialog(
+    onDismiss: () -> Unit,
+    onConnect: (
+        host: String,
+        port: Int,
+        model: Int,
+        luName: String,
+        hostType: String,
+        useTls: Boolean,
+        tlsVerifyCert: Boolean,
+        tn3270e: Boolean,
+        graphicsMode: String,
+        codePage: String,
+        proxyType: String,
+        proxyHost: String,
+        proxyPort: Int,
+        proxyUser: String,
+        proxyPass: String
+    ) -> Unit
+) {
+    val context = LocalContext.current
+    var savedHosts by remember { mutableStateOf(HostStorage.getSavedHosts(context)) }
+    var selectedHostId by remember { mutableStateOf<String?>(null) }
+
+    var profileName by remember { mutableStateOf("") }
+    var host by remember { mutableStateOf("127.0.0.1") }
+    var portStr by remember { mutableStateOf("23") }
+    var modelNum by remember { mutableIntStateOf(2) }
+    var luName by remember { mutableStateOf("") }
+    var autoConnect by remember { mutableStateOf(false) }
+    var hostType by remember { mutableStateOf("TSO") }
+    var useTls by remember { mutableStateOf(false) }
+    var tlsVerifyCert by remember { mutableStateOf(true) }
+    var tn3270e by remember { mutableStateOf(true) }
+    var graphicsMode by remember { mutableStateOf("BOTH") }
+    var codePage by remember { mutableStateOf(haus.nightmare.a3270.storage.AppSettings.getDefaultCodePage(context)) }
+    var proxyType by remember { mutableStateOf("NONE") }
+    var proxyHost by remember { mutableStateOf("") }
+    var proxyPortStr by remember { mutableStateOf("") }
+    var proxyUsername by remember { mutableStateOf("") }
+    var proxyPassword by remember { mutableStateOf("") }
+    var showProxySettings by remember { mutableStateOf(false) }
+
+    fun loadProfile(saved: SavedHost) {
+        selectedHostId = saved.id
+        profileName = saved.name
+        host = saved.host
+        portStr = saved.port.toString()
+        modelNum = saved.model
+        luName = saved.luName
+        autoConnect = saved.autoConnect
+        hostType = saved.hostType
+        useTls = saved.useTls
+        tlsVerifyCert = saved.tlsVerifyCert
+        tn3270e = saved.tn3270e
+        graphicsMode = saved.graphicsMode
+        codePage = saved.codePage
+        proxyType = saved.proxyType
+        proxyHost = saved.proxyHost
+        proxyPortStr = if (saved.proxyPort > 0) saved.proxyPort.toString() else ""
+        proxyUsername = saved.proxyUsername
+        proxyPassword = saved.proxyPassword
+        showProxySettings = saved.proxyType != "NONE"
+    }
+
+    fun clearFields() {
+        selectedHostId = null
+        profileName = ""
+        host = "127.0.0.1"
+        portStr = "23"
+        modelNum = 2
+        luName = ""
+        autoConnect = false
+        hostType = "TSO"
+        useTls = false
+        tlsVerifyCert = true
+        tn3270e = true
+        graphicsMode = "BOTH"
+        codePage = haus.nightmare.a3270.storage.AppSettings.getDefaultCodePage(context)
+        proxyType = "NONE"
+        proxyHost = ""
+        proxyPortStr = ""
+        proxyUsername = ""
+        proxyPassword = ""
+        showProxySettings = false
+    }
+
+    fun saveCurrentProfile(): SavedHost? {
+        val port = portStr.trim().toIntOrNull() ?: if (useTls) 992 else 23
+        val trimmedHost = host.trim()
+        if (trimmedHost.isBlank()) return null
+        val nameToSave = profileName.trim().ifBlank { "$trimmedHost:$port" }
+        val hostToSave = SavedHost(
+            id = selectedHostId ?: java.util.UUID.randomUUID().toString(),
+            name = nameToSave,
+            host = trimmedHost,
+            port = port,
+            model = modelNum,
+            luName = luName.trim(),
+            autoConnect = autoConnect,
+            hostType = hostType,
+            useTls = useTls,
+            tlsVerifyCert = tlsVerifyCert,
+            tn3270e = tn3270e,
+            graphicsMode = graphicsMode,
+            codePage = codePage,
+            proxyType = proxyType,
+            proxyHost = proxyHost.trim(),
+            proxyPort = proxyPortStr.trim().toIntOrNull() ?: 0,
+            proxyUsername = proxyUsername.trim(),
+            proxyPassword = proxyPassword.trim()
+        )
+        HostStorage.saveHost(context, hostToSave)
+        savedHosts = HostStorage.getSavedHosts(context)
+        selectedHostId = hostToSave.id
+        return hostToSave
+    }
+
+    val focusRequester = remember { FocusRequester() }
+    val keyboardController = LocalSoftwareKeyboardController.current
+
+    LaunchedEffect(Unit) {
+        kotlinx.coroutines.delay(150)
+        focusRequester.requestFocus()
+        keyboardController?.show()
+    }
+
+    Dialog(
+        onDismissRequest = onDismiss,
+        properties = DialogProperties(usePlatformDefaultWidth = false)
+    ) {
+        Surface(
+            shape = RoundedCornerShape(16.dp),
+            color = Color(0xFF1E1E1E),
+            tonalElevation = 6.dp,
+            modifier = Modifier
+                .fillMaxWidth(0.95f)
+                .heightIn(max = 680.dp)
+                .padding(vertical = 16.dp)
+        ) {
+            Column(
+                modifier = Modifier
+                    .fillMaxSize()
+                    .padding(16.dp),
+                verticalArrangement = Arrangement.spacedBy(8.dp)
+            ) {
+                // Title Row
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    Text(
+                        "Connect / Manage Hosts",
+                        fontWeight = FontWeight.Bold,
+                        fontSize = 16.sp,
+                        color = Color.White
+                    )
+                    TextButton(
+                        onClick = { clearFields() },
+                        contentPadding = PaddingValues(horizontal = 8.dp, vertical = 2.dp)
+                    ) {
+                        Text("+ New Profile", fontSize = 12.sp, color = Color(0xFF339AF0))
+                    }
+                }
+
+                // Scrollable Content Container
+                Box(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .weight(1f, fill = false)
+                ) {
+                    val scrollState = rememberScrollState()
+                    Column(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .verticalScroll(scrollState),
+                        verticalArrangement = Arrangement.spacedBy(10.dp)
+                    ) {
+                        // Saved Profiles List Section
+                        if (savedHosts.isNotEmpty()) {
+                            Text(
+                                "Saved Host Profiles:",
+                                fontSize = 11.sp,
+                                fontWeight = FontWeight.Bold,
+                                color = Color.Gray
+                            )
+                            Column(
+                                modifier = Modifier.fillMaxWidth(),
+                                verticalArrangement = Arrangement.spacedBy(4.dp)
+                            ) {
+                                savedHosts.forEach { saved ->
+                                    val isSelected = (saved.id == selectedHostId)
+                                    val tlsTag = if (saved.useTls) {
+                                        if (saved.tlsVerifyCert) " [🔒 TLS]" else " [🔓 TLS/NoVerify]"
+                                    } else ""
+                                    val eTag = if (!saved.tn3270e) " [Non-E]" else ""
+                                    val gfxTag = if (saved.graphicsMode != "NONE") " [GFX: ${saved.graphicsMode}]" else ""
+
+                                    Surface(
+                                        shape = RoundedCornerShape(8.dp),
+                                        color = if (isSelected) Color(0xFF2C3E50) else Color(0xFF25262B),
+                                        border = if (isSelected) androidx.compose.foundation.BorderStroke(1.dp, Color(0xFF339AF0)) else null,
+                                        modifier = Modifier
+                                            .fillMaxWidth()
+                                            .clickable { loadProfile(saved) }
+                                    ) {
+                                        Row(
+                                            modifier = Modifier
+                                                .fillMaxWidth()
+                                                .padding(horizontal = 10.dp, vertical = 6.dp),
+                                            horizontalArrangement = Arrangement.SpaceBetween,
+                                            verticalAlignment = Alignment.CenterVertically
+                                        ) {
+                                            Column(modifier = Modifier.weight(1f)) {
+                                                Text(
+                                                    text = saved.name,
+                                                    fontWeight = FontWeight.SemiBold,
+                                                    fontSize = 13.sp,
+                                                    color = Color.White
+                                                )
+                                                Text(
+                                                    text = "${saved.host}:${saved.port} (M${saved.model} - ${saved.hostType})$tlsTag$eTag$gfxTag" +
+                                                            if (saved.autoConnect) " [Auto]" else "",
+                                                    fontSize = 10.sp,
+                                                    color = Color.LightGray
+                                                )
+                                            }
+                                            Row(verticalAlignment = Alignment.CenterVertically) {
+                                                IconButton(
+                                                    onClick = {
+                                                        loadProfile(saved)
+                                                        val hostToConn = saveCurrentProfile() ?: saved
+                                                        onConnect(
+                                                            hostToConn.host,
+                                                            hostToConn.port,
+                                                            hostToConn.model,
+                                                            hostToConn.luName,
+                                                            hostToConn.hostType,
+                                                            hostToConn.useTls,
+                                                            hostToConn.tlsVerifyCert,
+                                                            hostToConn.tn3270e,
+                                                            hostToConn.graphicsMode,
+                                                            hostToConn.codePage,
+                                                            hostToConn.proxyType,
+                                                            hostToConn.proxyHost,
+                                                            hostToConn.proxyPort,
+                                                            hostToConn.proxyUsername,
+                                                            hostToConn.proxyPassword
+                                                        )
+                                                    },
+                                                    modifier = Modifier.size(32.dp)
+                                                ) {
+                                                    Text("▶", fontSize = 14.sp, color = Color(0xFF51CF66))
+                                                }
+                                                IconButton(
+                                                    onClick = {
+                                                        HostStorage.deleteHost(context, saved.id)
+                                                        savedHosts = HostStorage.getSavedHosts(context)
+                                                        if (selectedHostId == saved.id) {
+                                                            clearFields()
+                                                        }
+                                                    },
+                                                    modifier = Modifier.size(32.dp)
+                                                ) {
+                                                    Text("✕", fontSize = 13.sp, color = Color(0xFFFF6B6B))
+                                                }
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+                            HorizontalDivider(color = Color(0xFF373A40), modifier = Modifier.padding(vertical = 4.dp))
+                        }
+
+                        Text(
+                            text = if (selectedHostId != null) "Editing Profile:" else "Host Connection Details:",
+                            fontSize = 11.sp,
+                            fontWeight = FontWeight.Bold,
+                            color = Color.Gray
+                        )
+
+                        OutlinedTextField(
+                            value = profileName,
+                            onValueChange = { profileName = it },
+                            label = { Text("Profile Name (Optional)") },
+                            singleLine = true,
+                            keyboardOptions = TerminalKeyboardOptions.copy(imeAction = ImeAction.Next),
+                            modifier = Modifier.fillMaxWidth()
+                        )
+
+                        Row(
+                            modifier = Modifier.fillMaxWidth(),
+                            horizontalArrangement = Arrangement.spacedBy(8.dp)
+                        ) {
+                            OutlinedTextField(
+                                value = host,
+                                onValueChange = { host = it.filterNot { c -> c.isWhitespace() } },
+                                label = { Text("Host / IP Address") },
+                                singleLine = true,
+                                keyboardOptions = TerminalKeyboardOptions.copy(imeAction = ImeAction.Next),
+                                modifier = Modifier
+                                    .weight(0.68f)
+                                    .focusRequester(focusRequester)
+                            )
+                            OutlinedTextField(
+                                value = portStr,
+                                onValueChange = { portStr = it.filter { c -> c.isDigit() } },
+                                label = { Text("Port") },
+                                singleLine = true,
+                                keyboardOptions = TerminalKeyboardOptions.copy(imeAction = ImeAction.Next),
+                                modifier = Modifier.weight(0.32f)
+                            )
+                        }
+
+                        // Terminal Model Selector
+                        Column(modifier = Modifier.fillMaxWidth()) {
+                            Text("Terminal Model:", fontSize = 11.sp, color = Color.Gray)
+                            Spacer(modifier = Modifier.height(4.dp))
+                            Row(
+                                modifier = Modifier.fillMaxWidth(),
+                                horizontalArrangement = Arrangement.spacedBy(6.dp)
+                            ) {
+                                listOf(
+                                    2 to "M2",
+                                    3 to "M3",
+                                    4 to "M4",
+                                    5 to "M5"
+                                ).forEach { (m, label) ->
+                                    val isSelected = (modelNum == m)
+                                    Surface(
+                                        shape = RoundedCornerShape(6.dp),
+                                        color = if (isSelected) Color(0xFF1C7ED6) else Color(0xFF2C2D30),
+                                        modifier = Modifier
+                                            .weight(1f)
+                                            .height(34.dp)
+                                            .clickable { modelNum = m }
+                                    ) {
+                                        Box(
+                                            contentAlignment = Alignment.Center,
+                                            modifier = Modifier.fillMaxSize().padding(horizontal = 2.dp)
+                                        ) {
+                                            Text(
+                                                text = label,
+                                                color = Color.White,
+                                                fontSize = 11.sp,
+                                                fontWeight = if (isSelected) FontWeight.Bold else FontWeight.Normal,
+                                                textAlign = TextAlign.Center
+                                            )
+                                        }
+                                    }
+                                }
+                            }
+                        }
+
+                        // Host System Type (TSO, CMS, CICS)
+                        Column(modifier = Modifier.fillMaxWidth()) {
+                            Text("Host System Type:", fontSize = 11.sp, color = Color.Gray)
+                            Spacer(modifier = Modifier.height(4.dp))
+                            Row(
+                                modifier = Modifier.fillMaxWidth(),
+                                horizontalArrangement = Arrangement.spacedBy(6.dp)
+                            ) {
+                                listOf("TSO", "CMS", "CICS").forEach { ht ->
+                                    val isSelected = (hostType == ht)
+                                    Surface(
+                                        shape = RoundedCornerShape(6.dp),
+                                        color = if (isSelected) Color(0xFF1C7ED6) else Color(0xFF2C2D30),
+                                        modifier = Modifier
+                                            .weight(1f)
+                                            .height(34.dp)
+                                            .clickable { hostType = ht }
+                                    ) {
+                                        Box(
+                                            contentAlignment = Alignment.Center,
+                                            modifier = Modifier.fillMaxSize()
+                                        ) {
+                                            Text(
+                                                text = ht,
+                                                color = Color.White,
+                                                fontSize = 11.sp,
+                                                fontWeight = if (isSelected) FontWeight.Bold else FontWeight.Normal
+                                            )
+                                        }
+                                    }
+                                }
+                            }
+                        }
+
+                        // Graphics Mode (Both, Vector, Symbols, Off)
+                        Column(modifier = Modifier.fillMaxWidth()) {
+                            Text("Graphics Mode:", fontSize = 11.sp, color = Color.Gray)
+                            Spacer(modifier = Modifier.height(4.dp))
+                            Row(
+                                modifier = Modifier.fillMaxWidth(),
+                                horizontalArrangement = Arrangement.spacedBy(6.dp)
+                            ) {
+                                listOf(
+                                    "BOTH" to "Both",
+                                    "VECTOR_GRAPHICS" to "Vector",
+                                    "PROGRAMMED_SYMBOLS" to "Symbols",
+                                    "NONE" to "Off"
+                                ).forEach { (modeKey, modeLabel) ->
+                                    val isSelected = graphicsMode.equals(modeKey, ignoreCase = true)
+                                    Surface(
+                                        shape = RoundedCornerShape(6.dp),
+                                        color = if (isSelected) Color(0xFF2B8A3E) else Color(0xFF2C2D30),
+                                        modifier = Modifier
+                                            .weight(1f)
+                                            .height(34.dp)
+                                            .clickable { graphicsMode = modeKey }
+                                    ) {
+                                        Box(
+                                            contentAlignment = Alignment.Center,
+                                            modifier = Modifier.fillMaxSize().padding(horizontal = 2.dp)
+                                        ) {
+                                            Text(
+                                                text = modeLabel,
+                                                color = Color.White,
+                                                fontSize = 11.sp,
+                                                fontWeight = if (isSelected) FontWeight.Bold else FontWeight.Normal,
+                                                textAlign = TextAlign.Center
+                                            )
+                                        }
+                                    }
+                                }
+                            }
+                        }
+
+                        // Code Page Selector
+                        var codePageMenuExpanded by remember { mutableStateOf(false) }
+                        val codePagesList = HostStorage.AVAILABLE_CODE_PAGES
+                        val selectedCpLabel = codePagesList.firstOrNull { it.first == codePage }?.second ?: "Code Page $codePage"
+
+                        Column(modifier = Modifier.fillMaxWidth()) {
+                            Text("EBCDIC Code Page:", fontSize = 11.sp, color = Color.Gray)
+                            Spacer(modifier = Modifier.height(4.dp))
+                            Box(modifier = Modifier.fillMaxWidth()) {
+                                Surface(
+                                    shape = RoundedCornerShape(6.dp),
+                                    color = Color(0xFF2C2D30),
+                                    border = androidx.compose.foundation.BorderStroke(1.dp, Color(0xFF495057)),
+                                    modifier = Modifier
+                                        .fillMaxWidth()
+                                        .height(38.dp)
+                                        .clickable { codePageMenuExpanded = true }
+                                ) {
+                                    Row(
+                                        modifier = Modifier
+                                            .fillMaxSize()
+                                            .padding(horizontal = 10.dp),
+                                        horizontalArrangement = Arrangement.SpaceBetween,
+                                        verticalAlignment = Alignment.CenterVertically
+                                    ) {
+                                        Text(
+                                            text = selectedCpLabel,
+                                            color = Color.White,
+                                            fontSize = 12.sp,
+                                            fontWeight = FontWeight.Medium
+                                        )
+                                        Text("▼", color = Color.Gray, fontSize = 10.sp)
+                                    }
+                                }
+                                DropdownMenu(
+                                    expanded = codePageMenuExpanded,
+                                    onDismissRequest = { codePageMenuExpanded = false },
+                                    modifier = Modifier
+                                        .background(Color(0xFF2C2D30))
+                                        .heightIn(max = 280.dp)
+                                ) {
+                                    codePagesList.forEach { (cpId, label) ->
+                                        DropdownMenuItem(
+                                            text = {
+                                                Text(
+                                                    text = label,
+                                                    fontSize = 12.sp,
+                                                    color = if (codePage == cpId) Color(0xFF339AF0) else Color.White,
+                                                    fontWeight = if (codePage == cpId) FontWeight.Bold else FontWeight.Normal
+                                                )
+                                            },
+                                            onClick = {
+                                                codePage = cpId
+                                                codePageMenuExpanded = false
+                                            }
+                                        )
+                                    }
+                                }
+                            }
+                        }
+
+                        OutlinedTextField(
+                            value = luName,
+                            onValueChange = { luName = it },
+                            label = { Text("LU Name / Device Pool (Optional)") },
+                            singleLine = true,
+                            keyboardOptions = TerminalKeyboardOptions.copy(imeAction = ImeAction.Done),
+                            modifier = Modifier.fillMaxWidth()
+                        )
+
+                        // Protocol & Security Options
+                        Column(
+                            modifier = Modifier.fillMaxWidth(),
+                            verticalArrangement = Arrangement.spacedBy(2.dp)
+                        ) {
+                            // TLS / SSL Checkbox
+                            Row(
+                                verticalAlignment = Alignment.CenterVertically,
+                                modifier = Modifier
+                                    .fillMaxWidth()
+                                    .clickable {
+                                        val newTls = !useTls
+                                        useTls = newTls
+                                        if (newTls && portStr.trim() == "23") {
+                                            portStr = "992"
+                                        } else if (!newTls && portStr.trim() == "992") {
+                                            portStr = "23"
+                                        }
+                                    }
+                            ) {
+                                Checkbox(
+                                    checked = useTls,
+                                    onCheckedChange = { checked ->
+                                        useTls = checked
+                                        if (checked && portStr.trim() == "23") {
+                                            portStr = "992"
+                                        } else if (!checked && portStr.trim() == "992") {
+                                            portStr = "23"
+                                        }
+                                    }
+                                )
+                                Spacer(modifier = Modifier.width(4.dp))
+                                Text("Enable TLS / SSL Connection", fontSize = 12.sp, color = Color.White)
+                            }
+
+                            // Verify Certificate Checkbox (only when TLS is active)
+                            if (useTls) {
+                                Row(
+                                    verticalAlignment = Alignment.CenterVertically,
+                                    modifier = Modifier
+                                        .fillMaxWidth()
+                                        .padding(start = 24.dp)
+                                        .clickable { tlsVerifyCert = !tlsVerifyCert }
+                                ) {
+                                    Checkbox(
+                                        checked = tlsVerifyCert,
+                                        onCheckedChange = { tlsVerifyCert = it }
+                                    )
+                                    Spacer(modifier = Modifier.width(4.dp))
+                                    Text(
+                                        "Verify Server Certificate",
+                                        fontSize = 12.sp,
+                                        color = if (tlsVerifyCert) Color.LightGray else Color(0xFFFFB450)
+                                    )
+                                }
+                            }
+
+                            // TN3270E Checkbox
+                            Row(
+                                verticalAlignment = Alignment.CenterVertically,
+                                modifier = Modifier
+                                    .fillMaxWidth()
+                                    .clickable { tn3270e = !tn3270e }
+                            ) {
+                                Checkbox(
+                                    checked = tn3270e,
+                                    onCheckedChange = { tn3270e = it }
+                                )
+                                Spacer(modifier = Modifier.width(4.dp))
+                                Text("Enable TN3270E (Extended 3270)", fontSize = 12.sp, color = Color.White)
+                            }
+
+                            // Auto-connect Checkbox
+                            Row(
+                                verticalAlignment = Alignment.CenterVertically,
+                                modifier = Modifier
+                                    .fillMaxWidth()
+                                    .clickable { autoConnect = !autoConnect }
+                            ) {
+                                Checkbox(
+                                    checked = autoConnect,
+                                    onCheckedChange = { autoConnect = it }
+                                )
+                                Spacer(modifier = Modifier.width(4.dp))
+                                Text("Auto-connect on app startup", fontSize = 12.sp, color = Color.White)
+                            }
+
+                            // Proxy Settings Expandable Section
+                            Row(
+                                verticalAlignment = Alignment.CenterVertically,
+                                modifier = Modifier
+                                    .fillMaxWidth()
+                                    .clickable { showProxySettings = !showProxySettings }
+                            ) {
+                                Checkbox(
+                                    checked = showProxySettings || proxyType != "NONE",
+                                    onCheckedChange = { checked ->
+                                        showProxySettings = checked
+                                        if (!checked) proxyType = "NONE"
+                                    }
+                                )
+                                Spacer(modifier = Modifier.width(4.dp))
+                                Text(
+                                    text = if (proxyType != "NONE") "Proxy Active ($proxyType)" else "Configure Network Proxy",
+                                    fontSize = 12.sp,
+                                    color = if (proxyType != "NONE") Color(0xFF339AF0) else Color.White
+                                )
+                            }
+
+                            if (showProxySettings || proxyType != "NONE") {
+                                Card(
+                                    colors = CardDefaults.cardColors(containerColor = Color(0xFF25262B)),
+                                    modifier = Modifier.fillMaxWidth().padding(start = 8.dp, end = 4.dp, top = 4.dp)
+                                ) {
+                                    Column(
+                                        modifier = Modifier.padding(8.dp),
+                                        verticalArrangement = Arrangement.spacedBy(6.dp)
+                                    ) {
+                                        Text("Proxy Protocol:", fontSize = 11.sp, color = Color.Gray)
+                                        Row(
+                                            modifier = Modifier.fillMaxWidth(),
+                                            horizontalArrangement = Arrangement.spacedBy(4.dp)
+                                        ) {
+                                            listOf("NONE", "HTTP", "SOCKS4", "SOCKS5").forEach { pType ->
+                                                val isSel = proxyType == pType
+                                                FilterChip(
+                                                    selected = isSel,
+                                                    onClick = { proxyType = pType },
+                                                    label = { Text(pType, fontSize = 10.sp) }
+                                                )
+                                            }
+                                        }
+
+                                        if (proxyType != "NONE") {
+                                            Row(
+                                                modifier = Modifier.fillMaxWidth(),
+                                                horizontalArrangement = Arrangement.spacedBy(6.dp)
+                                            ) {
+                                                OutlinedTextField(
+                                                    value = proxyHost,
+                                                    onValueChange = { proxyHost = it },
+                                                    label = { Text("Proxy Host") },
+                                                    singleLine = true,
+                                                    keyboardOptions = TerminalKeyboardOptions,
+                                                    modifier = Modifier.weight(0.7f)
+                                                )
+                                                OutlinedTextField(
+                                                    value = proxyPortStr,
+                                                    onValueChange = { proxyPortStr = it },
+                                                    label = { Text("Port") },
+                                                    placeholder = { Text(if (proxyType == "HTTP") "8080" else "1080") },
+                                                    singleLine = true,
+                                                    keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
+                                                    modifier = Modifier.weight(0.3f)
+                                                )
+                                            }
+
+                                            Row(
+                                                modifier = Modifier.fillMaxWidth(),
+                                                horizontalArrangement = Arrangement.spacedBy(6.dp)
+                                            ) {
+                                                OutlinedTextField(
+                                                    value = proxyUsername,
+                                                    onValueChange = { proxyUsername = it },
+                                                    label = { Text("User (Opt)") },
+                                                    singleLine = true,
+                                                    keyboardOptions = TerminalKeyboardOptions,
+                                                    modifier = Modifier.weight(0.5f)
+                                                )
+                                                OutlinedTextField(
+                                                    value = proxyPassword,
+                                                    onValueChange = { proxyPassword = it },
+                                                    label = { Text("Pass (Opt)") },
+                                                    singleLine = true,
+                                                    keyboardOptions = TerminalKeyboardOptions,
+                                                    modifier = Modifier.weight(0.5f)
+                                                )
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+
+                // Action Buttons Row
+                Row(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .padding(top = 4.dp),
+                    horizontalArrangement = Arrangement.End,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    TextButton(onClick = onDismiss) {
+                        Text("Cancel", color = Color.LightGray)
+                    }
+                    Spacer(modifier = Modifier.width(6.dp))
+                    OutlinedButton(onClick = { saveCurrentProfile() }) {
+                        Text("Save")
+                    }
+                    Spacer(modifier = Modifier.width(6.dp))
+                    Button(
+                        onClick = {
+                            val saved = saveCurrentProfile()
+                            if (saved != null) {
+                                onConnect(
+                                    saved.host,
+                                    saved.port,
+                                    saved.model,
+                                    saved.luName,
+                                    saved.hostType,
+                                    saved.useTls,
+                                    saved.tlsVerifyCert,
+                                    saved.tn3270e,
+                                    saved.graphicsMode,
+                                    saved.codePage,
+                                    saved.proxyType,
+                                    saved.proxyHost,
+                                    saved.proxyPort,
+                                    saved.proxyUsername,
+                                    saved.proxyPassword
+                                )
+                            }
+                        },
+                        colors = ButtonDefaults.buttonColors(containerColor = Color(0xFF2B8A3E))
+                    ) {
+                        Text("Connect", color = Color.White, fontWeight = FontWeight.Bold)
+                    }
+                }
+            }
+        }
+    }
+}

src/main/java/haus/nightmare/a3270/ui/FieldInspectorDialog.kt

@@ -0,0 +1,214 @@
+package haus.nightmare.a3270.ui
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.horizontalScroll
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.compose.ui.window.Dialog
+import androidx.compose.ui.window.DialogProperties
+import haus.nightmare.lib3270j.Telnet3270Client
+import haus.nightmare.lib3270j.ecl.ECLField
+
+@Composable
+fun FieldInspectorDialog(
+    client: Telnet3270Client?,
+    screenVersion: Long,
+    onDismiss: () -> Unit,
+    onJumpToField: (Int) -> Unit
+) {
+    var fields by remember { mutableStateOf<List<ECLField>>(emptyList()) }
+    var selectedIndex by remember { mutableIntStateOf(-1) }
+    var cols by remember { mutableIntStateOf(80) }
+    var rows by remember { mutableIntStateOf(24) }
+
+    fun refresh() {
+        if (client != null && client.connectionState.isFullSession) {
+            val fieldList = client.fieldList
+            fields = fieldList?.fields ?: emptyList()
+            cols = client.screenBuffer?.cols ?: 80
+            rows = client.screenBuffer?.rows ?: 24
+        } else {
+            fields = emptyList()
+        }
+    }
+
+    LaunchedEffect(screenVersion, client) {
+        refresh()
+    }
+
+    Dialog(
+        onDismissRequest = onDismiss,
+        properties = DialogProperties(usePlatformDefaultWidth = false)
+    ) {
+        Card(
+            shape = RoundedCornerShape(16.dp),
+            colors = CardDefaults.cardColors(containerColor = Color(0xFF1E1E1E)),
+            modifier = Modifier
+                .fillMaxWidth(0.95f)
+                .heightIn(max = 680.dp)
+                .padding(vertical = 16.dp)
+        ) {
+            Column(
+                modifier = Modifier
+                    .fillMaxSize()
+                    .padding(16.dp),
+                verticalArrangement = Arrangement.spacedBy(8.dp)
+            ) {
+                // Header
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    Column {
+                        Text(
+                            "Presentation Space Field Inspector",
+                            fontWeight = FontWeight.Bold,
+                            fontSize = 15.sp,
+                            color = Color.White
+                        )
+                        Text(
+                            "${fields.size} fields detected (${rows}x$cols)",
+                            fontSize = 11.sp,
+                            color = Color.Gray
+                        )
+                    }
+                    TextButton(onClick = { refresh() }) {
+                        Text("Refresh", fontSize = 12.sp, color = Color(0xFF339AF0))
+                    }
+                }
+
+                HorizontalDivider(color = Color(0xFF2C2D30))
+
+                if (fields.isEmpty()) {
+                    Box(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .weight(1f),
+                        contentAlignment = Alignment.Center
+                    ) {
+                        Text(
+                            "No fields detected or terminal not in 3270 session.",
+                            color = Color.Gray,
+                            fontSize = 12.sp
+                        )
+                    }
+                } else {
+                    val horizScroll = rememberScrollState()
+
+                    Column(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .weight(1f)
+                            .horizontalScroll(horizScroll)
+                    ) {
+                        // Header Row
+                        Row(
+                            modifier = Modifier
+                                .background(Color(0xFF25262B))
+                                .padding(vertical = 6.dp, horizontal = 4.dp),
+                            verticalAlignment = Alignment.CenterVertically
+                        ) {
+                            Text("#", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(30.dp), textAlign = TextAlign.Center)
+                            Text("Pos", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(42.dp), textAlign = TextAlign.Center)
+                            Text("Start", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(52.dp), textAlign = TextAlign.Center)
+                            Text("End", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(52.dp), textAlign = TextAlign.Center)
+                            Text("Len", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                            Text("Prot", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                            Text("MDT", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                            Text("Num", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                            Text("Hi-Int", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(44.dp), textAlign = TextAlign.Center)
+                            Text("Hidden", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(46.dp), textAlign = TextAlign.Center)
+                            Text("Pen", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                            Text("Wrap", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                            Text("Content Text", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(220.dp), textAlign = TextAlign.Start)
+                        }
+
+                        // Data Rows
+                        LazyColumn(
+                            modifier = Modifier.fillMaxSize(),
+                            verticalArrangement = Arrangement.spacedBy(2.dp)
+                        ) {
+                            itemsIndexed(fields) { idx, field ->
+                                val isSelected = (idx == selectedIndex)
+                                val startRow = field.startRow + 1
+                                val startCol = field.startCol + 1
+                                val endRow = field.endRow + 1
+                                val endCol = field.endCol + 1
+
+                                val displayText = if (field.isHidden) "••••••••" else field.text
+
+                                Surface(
+                                    shape = RoundedCornerShape(4.dp),
+                                    color = if (isSelected) Color(0xFF1C7ED6).copy(alpha = 0.35f) else if (idx % 2 == 0) Color(0xFF161719) else Color(0xFF1E1F23),
+                                    modifier = Modifier
+                                        .fillMaxWidth()
+                                        .clickable {
+                                            selectedIndex = idx
+                                            onJumpToField(field.dataStart)
+                                        }
+                                ) {
+                                    Row(
+                                        modifier = Modifier.padding(vertical = 4.dp, horizontal = 4.dp),
+                                        verticalAlignment = Alignment.CenterVertically
+                                    ) {
+                                        Text("${idx + 1}", color = Color.White, fontSize = 11.sp, modifier = Modifier.width(30.dp), textAlign = TextAlign.Center)
+                                        Text("${field.start}", color = Color.Cyan, fontSize = 10.sp, fontFamily = FontFamily.Monospace, modifier = Modifier.width(42.dp), textAlign = TextAlign.Center)
+                                        Text(String.format("%02d/%02d", startRow, startCol), color = Color.LightGray, fontSize = 10.sp, fontFamily = FontFamily.Monospace, modifier = Modifier.width(52.dp), textAlign = TextAlign.Center)
+                                        Text(String.format("%02d/%02d", endRow, endCol), color = Color.LightGray, fontSize = 10.sp, fontFamily = FontFamily.Monospace, modifier = Modifier.width(52.dp), textAlign = TextAlign.Center)
+                                        Text("${field.length}", color = Color.White, fontSize = 10.sp, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                                        Text(if (field.isProtected) "Y" else "-", color = if (field.isProtected) Color.Gray else Color(0xFF51CF66), fontSize = 10.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                                        Text(if (field.isModified) "Y" else "-", color = if (field.isModified) Color(0xFFFFB450) else Color.Gray, fontSize = 10.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                                        Text(if (field.isNumeric) "Y" else "-", color = Color.LightGray, fontSize = 10.sp, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                                        Text(if (field.isHighIntensity) "Y" else "-", color = if (field.isHighIntensity) Color.White else Color.Gray, fontSize = 10.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(44.dp), textAlign = TextAlign.Center)
+                                        Text(if (field.isHidden) "Y" else "-", color = if (field.isHidden) Color(0xFFFF6B6B) else Color.Gray, fontSize = 10.sp, modifier = Modifier.width(46.dp), textAlign = TextAlign.Center)
+                                        Text(if (field.isPenSelectable) "Y" else "-", color = if (field.isPenSelectable) Color.Yellow else Color.Gray, fontSize = 10.sp, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                                        Text(if (field.isWrapped) "↩" else "-", color = if (field.isWrapped) Color(0xFF339AF0) else Color.Gray, fontSize = 10.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                                        Text(displayText, color = if (field.isProtected) Color(0xFF90CAF9) else Color(0xFFA5D6A7), fontSize = 11.sp, fontFamily = FontFamily.Monospace, maxLines = 1, modifier = Modifier.width(220.dp))
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+
+                // Bottom Buttons
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.End,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    if (selectedIndex in fields.indices) {
+                        Button(
+                            onClick = {
+                                onJumpToField(fields[selectedIndex].dataStart)
+                                onDismiss()
+                            },
+                            colors = ButtonDefaults.buttonColors(containerColor = Color(0xFF1C7ED6))
+                        ) {
+                            Text("Jump to Field")
+                        }
+                        Spacer(modifier = Modifier.width(8.dp))
+                    }
+                    TextButton(onClick = onDismiss) {
+                        Text("Close", color = Color.LightGray)
+                    }
+                }
+            }
+        }
+    }
+}

src/main/java/haus/nightmare/a3270/ui/FileTransferDialog.kt

@@ -0,0 +1,535 @@
+package haus.nightmare.a3270.ui
+
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import android.os.Environment
+import android.provider.OpenableColumns
+import android.widget.Toast
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.text.input.KeyboardCapitalization
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import haus.nightmare.lib3270j.ft.FTConfig
+import haus.nightmare.a3270.FTProgressState
+import java.io.File
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+
+private val TerminalKeyboardOptions = KeyboardOptions(
+    capitalization = KeyboardCapitalization.None,
+    autoCorrect = false,
+    keyboardType = KeyboardType.Ascii
+)
+
+@Composable
+fun FileTransferDialog(
+    initialHostType: String = "TSO",
+    ftProgressState: FTProgressState = FTProgressState(),
+    client: haus.nightmare.lib3270j.Telnet3270Client? = null,
+    onDismiss: () -> Unit,
+    onStartTransfer: (FTConfig) -> Unit,
+    onCancelTransfer: () -> Unit = {}
+) {
+    val context = LocalContext.current
+
+    val initialTypeEnum = when (initialHostType.uppercase()) {
+        "CMS", "VM/CMS", "VM" -> FTConfig.HostType.CMS
+        "CICS" -> FTConfig.HostType.CICS
+        else -> FTConfig.HostType.TSO
+    }
+
+    var hostFile by remember { mutableStateOf("") }
+    var localFile by remember { mutableStateOf("") }
+    var localDisplayName by remember { mutableStateOf("") }
+    var isReceive by remember { mutableStateOf(true) }
+    var isAscii by remember { mutableStateOf(true) }
+    var hostType by remember { mutableStateOf(initialTypeEnum) }
+    var recfm by remember { mutableStateOf(FTConfig.RecordFormat.DEFAULT) }
+    var lreclStr by remember { mutableStateOf("") }
+    var blksizeStr by remember { mutableStateOf("") }
+    var overwrite by remember { mutableStateOf(true) }
+    var showBrowseDialog by remember { mutableStateOf(false) }
+
+    var targetSaveUri by remember { mutableStateOf<Uri?>(null) }
+    var lastSavedFile by remember { mutableStateOf<File?>(null) }
+
+    // SAF Launcher for uploading (Send / PUT)
+    val openDocumentLauncher = rememberLauncherForActivityResult(
+        contract = ActivityResultContracts.OpenDocument()
+    ) { uri: Uri? ->
+        if (uri != null) {
+            try {
+                val displayName = getFileNameFromUri(context, uri).ifBlank { "upload.bin" }
+                val tempDir = File(context.cacheDir, "ft_upload").apply { if (!exists()) mkdirs() }
+                val tempFile = File(tempDir, displayName)
+                context.contentResolver.openInputStream(uri)?.use { input ->
+                    tempFile.outputStream().use { output ->
+                        input.copyTo(output)
+                    }
+                }
+                localFile = tempFile.absolutePath
+                localDisplayName = displayName
+                if (hostFile.isBlank()) {
+                    val cleanBase = displayName.substringBeforeLast('.').replace(Regex("[^a-zA-Z0-9]"), "").uppercase()
+                    hostFile = if (hostType == FTConfig.HostType.TSO) "'$cleanBase'" else "$cleanBase FILE A"
+                }
+                Toast.makeText(context, "Selected: $displayName", Toast.LENGTH_SHORT).show()
+            } catch (e: Exception) {
+                Toast.makeText(context, "Failed to read file: ${e.message}", Toast.LENGTH_SHORT).show()
+            }
+        }
+    }
+
+    // SAF Launcher for choosing download destination (Receive / GET)
+    val createDocumentLauncher = rememberLauncherForActivityResult(
+        contract = ActivityResultContracts.CreateDocument("*/*")
+    ) { uri: Uri? ->
+        if (uri != null) {
+            targetSaveUri = uri
+            val displayName = getFileNameFromUri(context, uri).ifBlank { "download.bin" }
+            localDisplayName = displayName
+            val tempDir = File(context.cacheDir, "ft_download").apply { if (!exists()) mkdirs() }
+            val tempFile = File(tempDir, displayName)
+            localFile = tempFile.absolutePath
+            Toast.makeText(context, "Destination: $displayName", Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    // Watch for completed transfers to export to destination URI if chosen
+    LaunchedEffect(ftProgressState.isActive, ftProgressState.isError) {
+        if (!ftProgressState.isActive && !ftProgressState.isError && ftProgressState.bytesTransferred > 0 && isReceive && localFile.isNotBlank()) {
+            val src = File(localFile)
+            if (src.exists()) {
+                lastSavedFile = src
+                val uri = targetSaveUri
+                if (uri != null) {
+                    try {
+                        context.contentResolver.openOutputStream(uri)?.use { out ->
+                            src.inputStream().use { input ->
+                                input.copyTo(out)
+                            }
+                        }
+                        Toast.makeText(context, "Saved download to destination file", Toast.LENGTH_SHORT).show()
+                    } catch (e: Exception) {
+                        Toast.makeText(context, "Failed writing to destination: ${e.message}", Toast.LENGTH_SHORT).show()
+                    }
+                }
+            }
+        }
+    }
+
+    if (showBrowseDialog) {
+        HostDirectoryDialog(
+            client = client,
+            initialHostType = hostType,
+            initialQuery = hostFile,
+            onDismiss = { showBrowseDialog = false },
+            onSelectDataset = { selected ->
+                hostFile = selected
+                if (localFile.isBlank()) {
+                    val base = selected.trim('\'').substringAfterLast('.').substringAfterLast(' ')
+                    val safeName = if (base.isNotBlank()) "$base.txt" else "download.txt"
+                    val tempDir = File(context.cacheDir, "ft_download").apply { if (!exists()) mkdirs() }
+                    val tempFile = File(tempDir, safeName)
+                    localFile = tempFile.absolutePath
+                    localDisplayName = safeName
+                }
+                showBrowseDialog = false
+            }
+        )
+    }
+
+    fun exportToDownloads() {
+        val src = lastSavedFile ?: if (localFile.isNotBlank()) File(localFile) else null
+        if (src == null || !src.exists()) {
+            Toast.makeText(context, "Downloaded file not found", Toast.LENGTH_SHORT).show()
+            return
+        }
+        try {
+            val downloadsDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS)
+            if (!downloadsDir.exists()) downloadsDir.mkdirs()
+            val timeStamp = SimpleDateFormat("yyyyMMdd_HHmmss", Locale.US).format(Date())
+            val targetName = (if (localDisplayName.isNotBlank()) localDisplayName else src.name).let {
+                val base = it.substringBeforeLast('.')
+                val ext = if (it.contains('.')) "." + it.substringAfterLast('.') else ""
+                "${base}_$timeStamp$ext"
+            }
+            val dst = File(downloadsDir, targetName)
+            src.copyTo(dst, overwrite = true)
+            Toast.makeText(context, "Exported to Downloads/${dst.name}", Toast.LENGTH_LONG).show()
+        } catch (e: Exception) {
+            Toast.makeText(context, "Export failed: ${e.message}", Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    fun shareDownloadedFile() {
+        val src = lastSavedFile ?: if (localFile.isNotBlank()) File(localFile) else null
+        if (src == null || !src.exists()) {
+            Toast.makeText(context, "Downloaded file not found", Toast.LENGTH_SHORT).show()
+            return
+        }
+        try {
+            val text = src.readText()
+            val intent = Intent(Intent.ACTION_SEND).apply {
+                type = "text/plain"
+                putExtra(Intent.EXTRA_SUBJECT, localDisplayName.ifBlank { src.name })
+                putExtra(Intent.EXTRA_TEXT, text)
+            }
+            context.startActivity(Intent.createChooser(intent, "Share Transferred File"))
+        } catch (e: Exception) {
+            Toast.makeText(context, "Share failed: ${e.message}", Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        title = {
+            Text("IND\$FILE File Transfer", fontWeight = FontWeight.Bold, fontSize = 16.sp)
+        },
+        text = {
+            Column(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .verticalScroll(rememberScrollState())
+                    .padding(vertical = 4.dp),
+                verticalArrangement = Arrangement.spacedBy(8.dp)
+            ) {
+                // Active Transfer Progress Banner
+                if (ftProgressState.isActive || ftProgressState.isRunning) {
+                    Card(
+                        colors = CardDefaults.cardColors(containerColor = Color(0xFF25262B)),
+                        modifier = Modifier.fillMaxWidth()
+                    ) {
+                        Column(
+                            modifier = Modifier
+                                .fillMaxWidth()
+                                .padding(12.dp),
+                            verticalArrangement = Arrangement.spacedBy(6.dp)
+                        ) {
+                            Text(
+                                text = ftProgressState.statusMessage.ifBlank { "Transferring..." },
+                                fontSize = 13.sp,
+                                fontWeight = FontWeight.SemiBold,
+                                color = if (ftProgressState.isError) Color(0xFFFF6B6B) else Color(0xFF51CF66)
+                            )
+                            LinearProgressIndicator(modifier = Modifier.fillMaxWidth())
+                            if (ftProgressState.bytesTransferred > 0) {
+                                Text(
+                                    text = "${ftProgressState.bytesTransferred} bytes transferred",
+                                    fontSize = 11.sp,
+                                    color = Color.LightGray
+                                )
+                            }
+                            Button(
+                                onClick = onCancelTransfer,
+                                colors = ButtonDefaults.buttonColors(containerColor = Color(0xFFC92A2A)),
+                                modifier = Modifier.align(Alignment.End)
+                            ) {
+                                Text("Cancel Transfer", fontSize = 11.sp)
+                            }
+                        }
+                    }
+                    HorizontalDivider(color = Color(0xFF373A40))
+                } else if (ftProgressState.statusMessage.isNotBlank()) {
+                    Column(
+                        modifier = Modifier.fillMaxWidth(),
+                        verticalArrangement = Arrangement.spacedBy(4.dp)
+                    ) {
+                        Text(
+                            text = ftProgressState.statusMessage,
+                            fontSize = 12.sp,
+                            fontWeight = FontWeight.SemiBold,
+                            color = if (ftProgressState.isError) Color(0xFFFF6B6B) else Color(0xFF51CF66)
+                        )
+                        if (!ftProgressState.isError && isReceive && lastSavedFile?.exists() == true) {
+                            Row(
+                                modifier = Modifier.fillMaxWidth(),
+                                horizontalArrangement = Arrangement.spacedBy(6.dp)
+                            ) {
+                                OutlinedButton(
+                                    onClick = { exportToDownloads() },
+                                    contentPadding = PaddingValues(horizontal = 8.dp, vertical = 2.dp),
+                                    modifier = Modifier.weight(1f)
+                                ) {
+                                    Text("Save to Downloads 📥", fontSize = 11.sp)
+                                }
+                                OutlinedButton(
+                                    onClick = { shareDownloadedFile() },
+                                    contentPadding = PaddingValues(horizontal = 8.dp, vertical = 2.dp),
+                                    modifier = Modifier.weight(1f)
+                                ) {
+                                    Text("Share 📤", fontSize = 11.sp)
+                                }
+                            }
+                        }
+                    }
+                    HorizontalDivider(color = Color(0xFF373A40))
+                }
+
+                // Transfer Direction
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    Text("Direction:", fontSize = 12.sp, fontWeight = FontWeight.SemiBold)
+                    Row {
+                        FilterChip(
+                            selected = isReceive,
+                            onClick = {
+                                isReceive = true
+                                targetSaveUri = null
+                            },
+                            label = { Text("Receive (GET)", fontSize = 11.sp) }
+                        )
+                        Spacer(modifier = Modifier.width(4.dp))
+                        FilterChip(
+                            selected = !isReceive,
+                            onClick = {
+                                isReceive = false
+                                targetSaveUri = null
+                            },
+                            label = { Text("Send (PUT)", fontSize = 11.sp) }
+                        )
+                    }
+                }
+
+                // Host File Name
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.spacedBy(6.dp)
+                ) {
+                    OutlinedTextField(
+                        value = hostFile,
+                        onValueChange = { hostFile = it },
+                        label = { Text("Host Dataset / File Name") },
+                        placeholder = { Text(if (hostType == FTConfig.HostType.TSO) "'USER.DATA'" else "PROFILE EXEC A") },
+                        singleLine = true,
+                        keyboardOptions = TerminalKeyboardOptions.copy(imeAction = ImeAction.Next),
+                        modifier = Modifier.weight(1f)
+                    )
+                    if (client != null && client.connectionState.isFullSession) {
+                        OutlinedButton(
+                            onClick = { showBrowseDialog = true },
+                            contentPadding = PaddingValues(horizontal = 8.dp, vertical = 4.dp),
+                            modifier = Modifier.padding(top = 6.dp)
+                        ) {
+                            Text("Browse...", fontSize = 11.sp)
+                        }
+                    }
+                }
+
+                // Local File Selection (SAF Document Picker integration)
+                Column(modifier = Modifier.fillMaxWidth()) {
+                    Row(
+                        modifier = Modifier.fillMaxWidth(),
+                        verticalAlignment = Alignment.CenterVertically,
+                        horizontalArrangement = Arrangement.spacedBy(6.dp)
+                    ) {
+                        OutlinedTextField(
+                            value = if (localDisplayName.isNotBlank()) localDisplayName else localFile,
+                            onValueChange = {
+                                localDisplayName = it
+                                localFile = it
+                            },
+                            label = { Text(if (isReceive) "Local Destination" else "Local File to Upload") },
+                            placeholder = { Text(if (isReceive) "download.txt" else "sample.txt") },
+                            singleLine = true,
+                            keyboardOptions = TerminalKeyboardOptions.copy(
+                                imeAction = if (!isReceive && hostType == FTConfig.HostType.TSO) ImeAction.Next else ImeAction.Done
+                            ),
+                            modifier = Modifier.weight(1f)
+                        )
+                        Button(
+                            onClick = {
+                                if (isReceive) {
+                                    val defName = if (hostFile.isNotBlank()) {
+                                        val base = hostFile.trim('\'').substringAfterLast('.').substringAfterLast(' ')
+                                        if (base.isNotBlank()) "$base.txt" else "download.txt"
+                                    } else "download.txt"
+                                    createDocumentLauncher.launch(defName)
+                                } else {
+                                    openDocumentLauncher.launch(arrayOf("*/*"))
+                                }
+                            },
+                            colors = ButtonDefaults.buttonColors(containerColor = Color(0xFF1C7ED6)),
+                            contentPadding = PaddingValues(horizontal = 10.dp, vertical = 4.dp),
+                            modifier = Modifier.padding(top = 6.dp)
+                        ) {
+                            Text(if (isReceive) "Save As..." else "Pick File...", fontSize = 11.sp)
+                        }
+                    }
+                    Text(
+                        text = if (isReceive) "Pick a destination or enter a file name to save in app storage" else "Use 'Pick File' to select any file from Downloads / Storage",
+                        fontSize = 10.sp,
+                        color = Color.LightGray,
+                        modifier = Modifier.padding(start = 4.dp, top = 2.dp)
+                    )
+                }
+
+                // Transfer Mode
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    Text("Mode:", fontSize = 12.sp, fontWeight = FontWeight.SemiBold)
+                    Row {
+                        FilterChip(
+                            selected = isAscii,
+                            onClick = { isAscii = true },
+                            label = { Text("ASCII (Text)", fontSize = 11.sp) }
+                        )
+                        Spacer(modifier = Modifier.width(4.dp))
+                        FilterChip(
+                            selected = !isAscii,
+                            onClick = { isAscii = false },
+                            label = { Text("Binary", fontSize = 11.sp) }
+                        )
+                    }
+                }
+
+                // Host Type (TSO, CMS, CICS)
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    Text("Host Type:", fontSize = 12.sp, fontWeight = FontWeight.SemiBold)
+                    Row {
+                        FTConfig.HostType.values().forEach { ht ->
+                            FilterChip(
+                                selected = (hostType == ht),
+                                onClick = { hostType = ht },
+                                label = { Text(ht.name, fontSize = 11.sp) }
+                            )
+                            Spacer(modifier = Modifier.width(4.dp))
+                        }
+                    }
+                }
+
+                // TSO Send Options
+                if (!isReceive && hostType == FTConfig.HostType.TSO) {
+                    Text("TSO Dataset Allocation:", fontSize = 12.sp, fontWeight = FontWeight.Bold, color = Color.Gray)
+                    Row(
+                        modifier = Modifier.fillMaxWidth(),
+                        horizontalArrangement = Arrangement.SpaceBetween,
+                        verticalAlignment = Alignment.CenterVertically
+                    ) {
+                        Text("Record Format:", fontSize = 11.sp)
+                        Row {
+                            listOf(
+                                FTConfig.RecordFormat.DEFAULT to "Def",
+                                FTConfig.RecordFormat.FIXED to "F",
+                                FTConfig.RecordFormat.VARIABLE to "V"
+                            ).forEach { (rf, label) ->
+                                FilterChip(
+                                    selected = (recfm == rf),
+                                    onClick = { recfm = rf },
+                                    label = { Text(label, fontSize = 11.sp) }
+                                )
+                                Spacer(modifier = Modifier.width(4.dp))
+                            }
+                        }
+                    }
+
+                    Row(
+                        modifier = Modifier.fillMaxWidth(),
+                        horizontalArrangement = Arrangement.spacedBy(8.dp)
+                    ) {
+                        OutlinedTextField(
+                            value = lreclStr,
+                            onValueChange = { lreclStr = it.filter { c -> c.isDigit() } },
+                            label = { Text("LRECL", fontSize = 11.sp) },
+                            singleLine = true,
+                            keyboardOptions = TerminalKeyboardOptions.copy(imeAction = ImeAction.Next),
+                            modifier = Modifier.weight(1f)
+                        )
+                        OutlinedTextField(
+                            value = blksizeStr,
+                            onValueChange = { blksizeStr = it.filter { c -> c.isDigit() } },
+                            label = { Text("BLKSIZE", fontSize = 11.sp) },
+                            singleLine = true,
+                            keyboardOptions = TerminalKeyboardOptions.copy(imeAction = ImeAction.Done),
+                            modifier = Modifier.weight(1f)
+                        )
+                    }
+                }
+            }
+        },
+        confirmButton = {
+            Button(
+                onClick = {
+                    val resolvedLocal = if (localFile.isNotBlank()) {
+                        localFile.trim()
+                    } else if (localDisplayName.isNotBlank()) {
+                        val tempDir = File(context.cacheDir, if (isReceive) "ft_download" else "ft_upload").apply { if (!exists()) mkdirs() }
+                        File(tempDir, localDisplayName.trim()).absolutePath
+                    } else ""
+
+                    if (hostFile.isNotBlank() && resolvedLocal.isNotBlank()) {
+                        localFile = resolvedLocal
+                        val config = FTConfig().apply {
+                            setHostFilename(hostFile.trim())
+                            setLocalFilename(resolvedLocal)
+                            setDirection(if (isReceive) FTConfig.Direction.RECEIVE else FTConfig.Direction.SEND)
+                            setTransferMode(if (isAscii) FTConfig.TransferMode.ASCII else FTConfig.TransferMode.BINARY)
+                            setHostType(hostType)
+                            setExistAction(if (overwrite) FTConfig.ExistAction.REPLACE else FTConfig.ExistAction.KEEP)
+                            if (!isReceive && hostType == FTConfig.HostType.TSO) {
+                                setRecfm(recfm)
+                                lreclStr.trim().toIntOrNull()?.let { setLrecl(it) }
+                                blksizeStr.trim().toIntOrNull()?.let { setBlksize(it) }
+                            }
+                        }
+                        onStartTransfer(config)
+                    }
+                },
+                enabled = hostFile.isNotBlank() && (localFile.isNotBlank() || localDisplayName.isNotBlank()) && !ftProgressState.isRunning
+            ) {
+                Text("Start Transfer")
+            }
+        },
+        dismissButton = {
+            TextButton(onClick = onDismiss) {
+                Text("Close")
+            }
+        }
+    )
+}
+
+private fun getFileNameFromUri(context: Context, uri: Uri): String {
+    var name = ""
+    try {
+        val cursor = context.contentResolver.query(uri, null, null, null, null)
+        cursor?.use {
+            if (it.moveToFirst()) {
+                val nameIndex = it.getColumnIndex(OpenableColumns.DISPLAY_NAME)
+                if (nameIndex != -1) {
+                    name = it.getString(nameIndex) ?: ""
+                }
+            }
+        }
+    } catch (_: Exception) {}
+    if (name.isBlank()) {
+        name = uri.lastPathSegment ?: "file"
+    }
+    return name
+}

src/main/java/haus/nightmare/a3270/ui/FindDialog.kt

@@ -0,0 +1,183 @@
+package haus.nightmare.a3270.ui
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.KeyboardActions
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.focus.focusRequester
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.text.input.KeyboardCapitalization
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.compose.ui.window.Dialog
+import androidx.compose.ui.window.DialogProperties
+
+@Composable
+fun FindDialog(
+    cols: Int = 80,
+    onDismiss: () -> Unit,
+    onFind: (query: String, matchCase: Boolean, forward: Boolean) -> Int,
+    onClearHighlight: () -> Unit
+) {
+    var query by remember { mutableStateOf("") }
+    var matchCase by remember { mutableStateOf(false) }
+    var forward by remember { mutableStateOf(true) }
+    var statusMessage by remember { mutableStateOf("") }
+    var isError by remember { mutableStateOf(false) }
+
+    val focusRequester = remember { FocusRequester() }
+
+    LaunchedEffect(Unit) {
+        kotlinx.coroutines.delay(100)
+        focusRequester.requestFocus()
+    }
+
+    fun doFind(searchForward: Boolean) {
+        val trimmed = query.trim()
+        if (trimmed.isEmpty()) {
+            statusMessage = "Please enter search text."
+            isError = true
+            return
+        }
+        val pos = onFind(trimmed, matchCase, searchForward)
+        if (pos >= 0) {
+            val effectiveCols = if (cols > 0) cols else 80
+            val row = (pos / effectiveCols) + 1
+            val col = (pos % effectiveCols) + 1
+            statusMessage = "Found at position $pos ($row/$col)"
+            isError = false
+        } else {
+            statusMessage = "Text not found: \"$trimmed\""
+            isError = true
+        }
+    }
+
+    Dialog(
+        onDismissRequest = onDismiss,
+        properties = DialogProperties(usePlatformDefaultWidth = false)
+    ) {
+        Card(
+            shape = RoundedCornerShape(16.dp),
+            colors = CardDefaults.cardColors(containerColor = Color(0xFF1E1E1E)),
+            modifier = Modifier
+                .fillMaxWidth(0.92f)
+                .padding(16.dp)
+        ) {
+            Column(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(20.dp),
+                verticalArrangement = Arrangement.spacedBy(10.dp)
+            ) {
+                Text(
+                    text = "Find on Screen",
+                    fontSize = 16.sp,
+                    fontWeight = FontWeight.Bold,
+                    color = Color.White
+                )
+
+                OutlinedTextField(
+                    value = query,
+                    onValueChange = {
+                        query = it
+                        if (statusMessage.isNotBlank()) statusMessage = ""
+                    },
+                    label = { Text("Find What") },
+                    singleLine = true,
+                    keyboardOptions = KeyboardOptions(
+                        capitalization = KeyboardCapitalization.None,
+                        autoCorrect = false,
+                        keyboardType = KeyboardType.Ascii,
+                        imeAction = ImeAction.Search
+                    ),
+                    keyboardActions = KeyboardActions(
+                        onSearch = { doFind(forward) }
+                    ),
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .focusRequester(focusRequester)
+                )
+
+                // Options Row
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.SpaceBetween
+                ) {
+                    Row(
+                        verticalAlignment = Alignment.CenterVertically,
+                        modifier = Modifier.clickable { matchCase = !matchCase }
+                    ) {
+                        Checkbox(
+                            checked = matchCase,
+                            onCheckedChange = { matchCase = it }
+                        )
+                        Spacer(modifier = Modifier.width(4.dp))
+                        Text("Match Case", fontSize = 12.sp, color = Color.White)
+                    }
+
+                    Row(
+                        verticalAlignment = Alignment.CenterVertically,
+                        horizontalArrangement = Arrangement.spacedBy(6.dp)
+                    ) {
+                        FilterChip(
+                            selected = forward,
+                            onClick = { forward = true },
+                            label = { Text("Down ↓", fontSize = 11.sp) }
+                        )
+                        FilterChip(
+                            selected = !forward,
+                            onClick = { forward = false },
+                            label = { Text("Up ↑", fontSize = 11.sp) }
+                        )
+                    }
+                }
+
+                if (statusMessage.isNotBlank()) {
+                    Text(
+                        text = statusMessage,
+                        fontSize = 12.sp,
+                        color = if (isError) Color(0xFFFF6B6B) else Color(0xFF51CF66)
+                    )
+                }
+
+                // Action Buttons
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.End,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    TextButton(onClick = {
+                        onClearHighlight()
+                        onDismiss()
+                    }) {
+                        Text("Close", color = Color.LightGray)
+                    }
+                    Spacer(modifier = Modifier.width(6.dp))
+                    OutlinedButton(onClick = {
+                        onClearHighlight()
+                        statusMessage = ""
+                    }) {
+                        Text("Clear")
+                    }
+                    Spacer(modifier = Modifier.width(6.dp))
+                    Button(
+                        onClick = { doFind(forward) },
+                        colors = ButtonDefaults.buttonColors(containerColor = Color(0xFF1C7ED6))
+                    ) {
+                        Text("Find Next")
+                    }
+                }
+            }
+        }
+    }
+}

src/main/java/haus/nightmare/a3270/ui/FunctionKeyBar.kt

@@ -0,0 +1,378 @@
+package haus.nightmare.a3270.ui
+
+import android.view.HapticFeedbackConstants
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.focusProperties
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalView
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import haus.nightmare.lib3270j.ConnectionState
+import haus.nightmare.lib3270j.protocol.DS3270Constants.*
+
+@Composable
+fun TwoRowKeyBar(
+    connectionState: ConnectionState,
+    isShiftPressed: Boolean = false,
+    isLightPenMode: Boolean = false,
+    hapticFeedbackEnabled: Boolean = true,
+    onClearShift: () -> Unit = {},
+    onConnectClick: () -> Unit,
+    onDisconnectClick: () -> Unit,
+    onFtClick: () -> Unit,
+    onFieldInspectorClick: () -> Unit = {},
+    onFindClick: () -> Unit = {},
+    onScreenExportClick: () -> Unit = {},
+    onScriptClick: () -> Unit = {},
+    onPrinterSessionClick: () -> Unit = {},
+    onToggleLightPen: () -> Unit = {},
+    onSettingsClick: () -> Unit = {},
+    onSendAid: (Int) -> Unit,
+    onReset: () -> Unit,
+    onTab: () -> Unit,
+    onBackTab: () -> Unit,
+    onEraseInput: () -> Unit = {},
+    onEraseEof: () -> Unit = {},
+    onAttn: () -> Unit = {},
+    onSysReq: () -> Unit = {},
+    onCursorSelect: () -> Unit = {},
+    onCursorLeft: () -> Unit = {},
+    onCursorUp: () -> Unit = {},
+    onCursorDown: () -> Unit = {},
+    onCursorRight: () -> Unit = {},
+    modifier: Modifier = Modifier
+) {
+    var menuExpanded by remember { mutableStateOf(false) }
+
+    Column(
+        modifier = modifier
+            .fillMaxWidth()
+            .background(Color(0xFF161719))
+    ) {
+        // Row 1: System & Quick Action Keys (Static 12-key row matching Row 2 columns)
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .height(35.dp)
+                .padding(horizontal = 1.dp, vertical = 1.dp),
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+            // 1. Menu Dropdown Button (Connect/Disconnect/FT/Diagnostics/Tools/Settings)
+            Box(modifier = Modifier.weight(1f)) {
+                KeyButton(
+                    label = "⋮",
+                    color = Color(0xFF343A40),
+                    modifier = Modifier.fillMaxWidth(),
+                    hapticFeedbackEnabled = hapticFeedbackEnabled,
+                    innerPaddingHorizontal = 0.dp,
+                    onClick = { menuExpanded = true }
+                )
+                DropdownMenu(
+                    expanded = menuExpanded,
+                    onDismissRequest = { menuExpanded = false },
+                    modifier = Modifier
+                        .background(Color(0xFF2C2D30))
+                        .heightIn(max = 420.dp)
+                ) {
+                    if (!connectionState.isConnected()) {
+                        DropdownMenuItem(
+                            text = { Text("Connect", color = Color.White, fontWeight = FontWeight.SemiBold) },
+                            onClick = {
+                                menuExpanded = false
+                                onConnectClick()
+                            }
+                        )
+                        DropdownMenuItem(
+                            text = { Text("3287 Printer Session", color = Color.White) },
+                            onClick = {
+                                menuExpanded = false
+                                onPrinterSessionClick()
+                            }
+                        )
+                    } else {
+                        DropdownMenuItem(
+                            text = { Text("Disconnect", color = Color(0xFFFF6B6B), fontWeight = FontWeight.SemiBold) },
+                            onClick = {
+                                menuExpanded = false
+                                onDisconnectClick()
+                            }
+                        )
+                        HorizontalDivider(color = Color(0xFF3E4044))
+                        DropdownMenuItem(
+                            text = { Text("Find on Screen", color = Color.White) },
+                            onClick = {
+                                menuExpanded = false
+                                onFindClick()
+                            }
+                        )
+                        DropdownMenuItem(
+                            text = { Text("Field Inspector", color = Color.White) },
+                            onClick = {
+                                menuExpanded = false
+                                onFieldInspectorClick()
+                            }
+                        )
+                        DropdownMenuItem(
+                            text = { Text("File Transfer (IND\$FILE)", color = Color.White) },
+                            onClick = {
+                                menuExpanded = false
+                                onFtClick()
+                            }
+                        )
+                        DropdownMenuItem(
+                            text = { Text("Save / Share Screen", color = Color.White) },
+                            onClick = {
+                                menuExpanded = false
+                                onScreenExportClick()
+                            }
+                        )
+                        DropdownMenuItem(
+                            text = { Text("Run Keystroke Script", color = Color.White) },
+                            onClick = {
+                                menuExpanded = false
+                                onScriptClick()
+                            }
+                        )
+                        DropdownMenuItem(
+                            text = { Text("3287 Printer Session", color = Color.White) },
+                            onClick = {
+                                menuExpanded = false
+                                onPrinterSessionClick()
+                            }
+                        )
+                        HorizontalDivider(color = Color(0xFF3E4044))
+                        DropdownMenuItem(
+                            text = { Text("Attention (Attn)", color = Color.LightGray) },
+                            onClick = {
+                                menuExpanded = false
+                                onAttn()
+                            }
+                        )
+                        DropdownMenuItem(
+                            text = { Text("System Request (SysReq)", color = Color.LightGray) },
+                            onClick = {
+                                menuExpanded = false
+                                onSysReq()
+                            }
+                        )
+                        DropdownMenuItem(
+                            text = { Text("Erase Input (ErInp)", color = Color.LightGray) },
+                            onClick = {
+                                menuExpanded = false
+                                onEraseInput()
+                            }
+                        )
+                        DropdownMenuItem(
+                            text = { Text("Cursor Select (CurSel)", color = Color.LightGray) },
+                            onClick = {
+                                menuExpanded = false
+                                onCursorSelect()
+                            }
+                        )
+                        HorizontalDivider(color = Color(0xFF3E4044))
+                    }
+                    DropdownMenuItem(
+                        text = {
+                            Text(
+                                text = if (isLightPenMode) "Light Pen: ON" else "Light Pen: OFF",
+                                color = if (isLightPenMode) Color(0xFFFFFF50) else Color.White,
+                                fontWeight = FontWeight.SemiBold
+                            )
+                        },
+                        onClick = {
+                            menuExpanded = false
+                            onToggleLightPen()
+                        }
+                    )
+                    DropdownMenuItem(
+                        text = { Text("Settings", color = Color.White, fontWeight = FontWeight.SemiBold) },
+                        onClick = {
+                            menuExpanded = false
+                            onSettingsClick()
+                        }
+                    )
+                }
+            }
+
+            // 2. TAB / BTAB depending on Shift state
+            val tabLabel = if (isShiftPressed) "BTAB" else "TAB"
+            KeyButton(
+                label = tabLabel,
+                color = Color(0xFF1C7ED6),
+                modifier = Modifier.weight(1f),
+                hapticFeedbackEnabled = hapticFeedbackEnabled,
+                innerPaddingHorizontal = 0.dp,
+                onClick = {
+                    if (isShiftPressed) {
+                        onBackTab()
+                        onClearShift()
+                    } else {
+                        onTab()
+                    }
+                }
+            )
+
+            // 3. RESET / ERASE (Erase Input) depending on Shift state
+            val resetLabel = if (isShiftPressed) "ERASE" else "RESET"
+            KeyButton(
+                label = resetLabel,
+                color = Color(0xFFE67700),
+                modifier = Modifier.weight(1f),
+                hapticFeedbackEnabled = hapticFeedbackEnabled,
+                innerPaddingHorizontal = 0.dp,
+                onClick = {
+                    if (isShiftPressed) {
+                        onEraseInput()
+                        onClearShift()
+                    } else {
+                        onReset()
+                    }
+                }
+            )
+
+            // 4. ENTER / EOF (Erase EOF) depending on Shift state
+            val enterLabel = if (isShiftPressed) "EOF" else "ENTER"
+            KeyButton(
+                label = enterLabel,
+                color = Color(0xFF2B8A3E),
+                modifier = Modifier.weight(1f),
+                hapticFeedbackEnabled = hapticFeedbackEnabled,
+                innerPaddingHorizontal = 0.dp,
+                onClick = {
+                    if (isShiftPressed) {
+                        onEraseEof()
+                        onClearShift()
+                    } else {
+                        onSendAid(AID_ENTER)
+                    }
+                }
+            )
+
+            // 5. CLEAR / ATTN (Attention) depending on Shift state
+            val clearLabel = if (isShiftPressed) "ATTN" else "CLEAR"
+            KeyButton(
+                label = clearLabel,
+                color = Color(0xFFC92A2A),
+                modifier = Modifier.weight(1f),
+                hapticFeedbackEnabled = hapticFeedbackEnabled,
+                innerPaddingHorizontal = 0.dp,
+                onClick = {
+                    if (isShiftPressed) {
+                        onAttn()
+                        onClearShift()
+                    } else {
+                        onSendAid(AID_CLEAR)
+                    }
+                }
+            )
+
+            // 6. PA1
+            KeyButton("PA1", Color(0xFF495057), modifier = Modifier.weight(1f), hapticFeedbackEnabled = hapticFeedbackEnabled, innerPaddingHorizontal = 0.dp, onClick = { onSendAid(AID_PA1) })
+
+            // 7. PA2
+            KeyButton("PA2", Color(0xFF495057), modifier = Modifier.weight(1f), hapticFeedbackEnabled = hapticFeedbackEnabled, innerPaddingHorizontal = 0.dp, onClick = { onSendAid(AID_PA2) })
+
+            // 8. PA3
+            KeyButton("PA3", Color(0xFF495057), modifier = Modifier.weight(1f), hapticFeedbackEnabled = hapticFeedbackEnabled, innerPaddingHorizontal = 0.dp, onClick = { onSendAid(AID_PA3) })
+
+            // 9. Left Navigation
+            KeyButton("←", Color(0xFF343A40), modifier = Modifier.weight(1f), hapticFeedbackEnabled = hapticFeedbackEnabled, innerPaddingHorizontal = 0.dp, onClick = onCursorLeft)
+
+            // 10. Up Navigation
+            KeyButton("↑", Color(0xFF343A40), modifier = Modifier.weight(1f), hapticFeedbackEnabled = hapticFeedbackEnabled, innerPaddingHorizontal = 0.dp, onClick = onCursorUp)
+
+            // 11. Down Navigation
+            KeyButton("↓", Color(0xFF343A40), modifier = Modifier.weight(1f), hapticFeedbackEnabled = hapticFeedbackEnabled, innerPaddingHorizontal = 0.dp, onClick = onCursorDown)
+
+            // 12. Right Navigation
+            KeyButton("→", Color(0xFF343A40), modifier = Modifier.weight(1f), hapticFeedbackEnabled = hapticFeedbackEnabled, innerPaddingHorizontal = 0.dp, onClick = onCursorRight)
+        }
+
+        Spacer(modifier = Modifier.height(1.dp).fillMaxWidth().background(Color(0xFF2C2D30)))
+
+        // Row 2: PF Keys (F1-F12 when Shift is off; F13-F24 when Shift is down) - Non-scrolling, full width
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .height(35.dp)
+                .padding(horizontal = 1.dp, vertical = 1.dp),
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+            val pfAids = intArrayOf(
+                AID_PF1, AID_PF2, AID_PF3, AID_PF4, AID_PF5, AID_PF6,
+                AID_PF7, AID_PF8, AID_PF9, AID_PF10, AID_PF11, AID_PF12,
+                AID_PF13, AID_PF14, AID_PF15, AID_PF16, AID_PF17, AID_PF18,
+                AID_PF19, AID_PF20, AID_PF21, AID_PF22, AID_PF23, AID_PF24
+            )
+
+            val startPf = if (isShiftPressed) 13 else 1
+            val endPf = if (isShiftPressed) 24 else 12
+
+            for (i in startPf..endPf) {
+                val aid = pfAids[i - 1]
+                KeyButton(
+                    label = "F$i",
+                    color = Color(0xFF364FC7),
+                    modifier = Modifier.weight(1f),
+                    hapticFeedbackEnabled = hapticFeedbackEnabled,
+                    innerPaddingHorizontal = 0.dp,
+                    onClick = {
+                        onSendAid(aid)
+                        if (isShiftPressed) {
+                            onClearShift()
+                        }
+                    }
+                )
+            }
+        }
+    }
+}
+
+@Composable
+private fun KeyButton(
+    label: String,
+    color: Color,
+    onClick: () -> Unit,
+    modifier: Modifier = Modifier,
+    hapticFeedbackEnabled: Boolean = true,
+    innerPaddingHorizontal: androidx.compose.ui.unit.Dp = 0.dp
+) {
+    val view = LocalView.current
+    Surface(
+        onClick = {
+            if (hapticFeedbackEnabled) {
+                view.performHapticFeedback(HapticFeedbackConstants.KEYBOARD_TAP)
+            }
+            onClick()
+        },
+        shape = RoundedCornerShape(4.dp),
+        color = color,
+        shadowElevation = 1.dp,
+        modifier = modifier
+            .padding(horizontal = 1.dp, vertical = 1.dp)
+            .height(31.dp)
+            .focusProperties { canFocus = false }
+    ) {
+        Box(
+            contentAlignment = Alignment.Center,
+            modifier = Modifier.padding(horizontal = innerPaddingHorizontal)
+        ) {
+            Text(
+                text = label,
+                color = Color.White,
+                fontSize = 10.sp,
+                fontFamily = FontFamily.Monospace,
+                fontWeight = FontWeight.Bold,
+                maxLines = 1
+            )
+        }
+    }
+}

src/main/java/haus/nightmare/a3270/ui/HostDirectoryDialog.kt

@@ -0,0 +1,310 @@
+package haus.nightmare.a3270.ui
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.horizontalScroll
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.KeyboardActions
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.text.input.KeyboardCapitalization
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.compose.ui.window.Dialog
+import androidx.compose.ui.window.DialogProperties
+import haus.nightmare.lib3270j.Telnet3270Client
+import haus.nightmare.lib3270j.ft.FTConfig
+import haus.nightmare.lib3270j.ft.dir.CMSDirectoryEntry
+import haus.nightmare.lib3270j.ft.dir.HostDirectoryEntry
+import haus.nightmare.lib3270j.ft.dir.TSODirectoryEntry
+
+@Composable
+fun HostDirectoryDialog(
+    client: Telnet3270Client?,
+    initialHostType: FTConfig.HostType = FTConfig.HostType.TSO,
+    initialQuery: String = "",
+    onDismiss: () -> Unit,
+    onSelectDataset: (String) -> Unit
+) {
+    var hostType by remember { mutableStateOf(initialHostType) }
+    var query by remember { mutableStateOf(initialQuery) }
+    var entries by remember { mutableStateOf<List<HostDirectoryEntry>>(emptyList()) }
+    var selectedIndex by remember { mutableIntStateOf(-1) }
+    var statusMessage by remember { mutableStateOf("") }
+
+    fun runQuery() {
+        val c = client
+        if (c == null || !c.connectionState.isFullSession) {
+            statusMessage = "Terminal not connected."
+            return
+        }
+        val xfer = c.xfer
+        if (xfer == null) {
+            statusMessage = "ECL transfer interface not available."
+            return
+        }
+
+        val q = query.trim()
+        if (hostType == FTConfig.HostType.CMS) {
+            val list = xfer.getCmsDirectory(q)
+            entries = list ?: emptyList()
+        } else {
+            val list = xfer.getTsoDirectory(q)
+            entries = list ?: emptyList()
+        }
+        selectedIndex = -1
+        statusMessage = "${entries.size} entries found."
+    }
+
+    fun parseScreen() {
+        val c = client
+        if (c == null || !c.connectionState.isFullSession) {
+            statusMessage = "No active screen to parse."
+            return
+        }
+        val xfer = c.xfer
+        if (xfer == null) {
+            statusMessage = "ECL transfer interface not available."
+            return
+        }
+
+        val ps = c.ps
+        val screenText = ps.getString(0, ps.size)
+        if (hostType == FTConfig.HostType.CMS) {
+            val list = xfer.getCmsDirectory(screenText)
+            entries = list ?: emptyList()
+        } else {
+            val list = xfer.getTsoDirectory(screenText)
+            entries = list ?: emptyList()
+        }
+        selectedIndex = -1
+        statusMessage = "Parsed ${entries.size} entries from screen."
+    }
+
+    LaunchedEffect(Unit) {
+        if (initialQuery.isNotBlank()) {
+            runQuery()
+        } else {
+            parseScreen()
+        }
+    }
+
+    Dialog(
+        onDismissRequest = onDismiss,
+        properties = DialogProperties(usePlatformDefaultWidth = false)
+    ) {
+        Card(
+            shape = RoundedCornerShape(16.dp),
+            colors = CardDefaults.cardColors(containerColor = Color(0xFF1E1E1E)),
+            modifier = Modifier
+                .fillMaxWidth(0.95f)
+                .heightIn(max = 680.dp)
+                .padding(vertical = 16.dp)
+        ) {
+            Column(
+                modifier = Modifier
+                    .fillMaxSize()
+                    .padding(16.dp),
+                verticalArrangement = Arrangement.spacedBy(8.dp)
+            ) {
+                // Header & Query Bar
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    Text(
+                        "Host Catalog & Directory Browser",
+                        fontWeight = FontWeight.Bold,
+                        fontSize = 15.sp,
+                        color = Color.White
+                    )
+                    Row {
+                        FilterChip(
+                            selected = (hostType == FTConfig.HostType.TSO),
+                            onClick = { hostType = FTConfig.HostType.TSO },
+                            label = { Text("TSO", fontSize = 11.sp) }
+                        )
+                        Spacer(modifier = Modifier.width(4.dp))
+                        FilterChip(
+                            selected = (hostType == FTConfig.HostType.CMS),
+                            onClick = { hostType = FTConfig.HostType.CMS },
+                            label = { Text("CMS", fontSize = 11.sp) }
+                        )
+                    }
+                }
+
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.spacedBy(6.dp),
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    OutlinedTextField(
+                        value = query,
+                        onValueChange = { query = it },
+                        label = { Text("Query Pattern") },
+                        placeholder = { Text(if (hostType == FTConfig.HostType.TSO) "USER.*" else "* EXEC *") },
+                        singleLine = true,
+                        keyboardOptions = KeyboardOptions(
+                            capitalization = KeyboardCapitalization.None,
+                            autoCorrect = false,
+                            keyboardType = KeyboardType.Ascii,
+                            imeAction = ImeAction.Search
+                        ),
+                        keyboardActions = KeyboardActions(onSearch = { runQuery() }),
+                        modifier = Modifier.weight(1f)
+                    )
+                    Button(
+                        onClick = { runQuery() },
+                        colors = ButtonDefaults.buttonColors(containerColor = Color(0xFF1C7ED6))
+                    ) {
+                        Text("Query")
+                    }
+                }
+
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    Text(
+                        text = statusMessage.ifBlank { "Enter query or parse screen." },
+                        fontSize = 11.sp,
+                        color = Color.Gray
+                    )
+                    TextButton(onClick = { parseScreen() }) {
+                        Text("Parse Screen", fontSize = 11.sp, color = Color(0xFF51CF66))
+                    }
+                }
+
+                HorizontalDivider(color = Color(0xFF2C2D30))
+
+                // Table View
+                if (entries.isEmpty()) {
+                    Box(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .weight(1f),
+                        contentAlignment = Alignment.Center
+                    ) {
+                        Text("No entries found.", color = Color.Gray, fontSize = 12.sp)
+                    }
+                } else {
+                    val horizScroll = rememberScrollState()
+
+                    Column(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .weight(1f)
+                            .horizontalScroll(horizScroll)
+                    ) {
+                        // Header Row
+                        Row(
+                            modifier = Modifier
+                                .background(Color(0xFF25262B))
+                                .padding(vertical = 6.dp, horizontal = 4.dp),
+                            verticalAlignment = Alignment.CenterVertically
+                        ) {
+                            if (hostType == FTConfig.HostType.CMS) {
+                                Text("Filename", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(90.dp))
+                                Text("Filetype", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(80.dp))
+                                Text("Fm", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                                Text("Fmt", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                                Text("Lrecl", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(50.dp), textAlign = TextAlign.Center)
+                                Text("Records", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(60.dp), textAlign = TextAlign.Center)
+                                Text("Date / Time", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(140.dp))
+                            } else {
+                                Text("Dataset Name", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(220.dp))
+                                Text("Volume", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(70.dp))
+                                Text("Recfm", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(44.dp), textAlign = TextAlign.Center)
+                                Text("Lrecl", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(50.dp), textAlign = TextAlign.Center)
+                                Text("Blksize", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(60.dp), textAlign = TextAlign.Center)
+                                Text("Tracks", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(50.dp), textAlign = TextAlign.Center)
+                                Text("Ext", color = Color.LightGray, fontSize = 11.sp, fontWeight = FontWeight.Bold, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                            }
+                        }
+
+                        // Entry Rows
+                        LazyColumn(
+                            modifier = Modifier.fillMaxSize(),
+                            verticalArrangement = Arrangement.spacedBy(2.dp)
+                        ) {
+                            itemsIndexed(entries) { idx, item ->
+                                val isSelected = (idx == selectedIndex)
+
+                                Surface(
+                                    shape = RoundedCornerShape(4.dp),
+                                    color = if (isSelected) Color(0xFF1C7ED6).copy(alpha = 0.35f) else if (idx % 2 == 0) Color(0xFF161719) else Color(0xFF1E1F23),
+                                    modifier = Modifier
+                                        .fillMaxWidth()
+                                        .clickable { selectedIndex = idx }
+                                ) {
+                                    Row(
+                                        modifier = Modifier.padding(vertical = 5.dp, horizontal = 4.dp),
+                                        verticalAlignment = Alignment.CenterVertically
+                                    ) {
+                                        if (item is CMSDirectoryEntry) {
+                                            Text(item.filename, color = Color.White, fontSize = 11.sp, fontFamily = FontFamily.Monospace, modifier = Modifier.width(90.dp))
+                                            Text(item.filetype, color = Color.Cyan, fontSize = 11.sp, fontFamily = FontFamily.Monospace, modifier = Modifier.width(80.dp))
+                                            Text(item.filemode, color = Color.LightGray, fontSize = 11.sp, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                                            Text(item.recfm, color = Color.LightGray, fontSize = 11.sp, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                                            Text("${item.lrecl}", color = Color.LightGray, fontSize = 11.sp, modifier = Modifier.width(50.dp), textAlign = TextAlign.Center)
+                                            Text("${item.numRecords}", color = Color.LightGray, fontSize = 11.sp, modifier = Modifier.width(60.dp), textAlign = TextAlign.Center)
+                                            Text("${item.date} ${item.time}", color = Color.Gray, fontSize = 10.sp, modifier = Modifier.width(140.dp))
+                                        } else if (item is TSODirectoryEntry) {
+                                            Text(item.datasetName, color = Color.White, fontSize = 11.sp, fontFamily = FontFamily.Monospace, modifier = Modifier.width(220.dp))
+                                            Text(item.volume, color = Color.Cyan, fontSize = 11.sp, modifier = Modifier.width(70.dp))
+                                            Text(item.recfm, color = Color.LightGray, fontSize = 11.sp, modifier = Modifier.width(44.dp), textAlign = TextAlign.Center)
+                                            Text("${item.lrecl}", color = Color.LightGray, fontSize = 11.sp, modifier = Modifier.width(50.dp), textAlign = TextAlign.Center)
+                                            Text("${item.blksize}", color = Color.LightGray, fontSize = 11.sp, modifier = Modifier.width(60.dp), textAlign = TextAlign.Center)
+                                            Text("${item.tracksAllocated}", color = Color.LightGray, fontSize = 11.sp, modifier = Modifier.width(50.dp), textAlign = TextAlign.Center)
+                                            Text("${item.extents}", color = Color.LightGray, fontSize = 11.sp, modifier = Modifier.width(36.dp), textAlign = TextAlign.Center)
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+
+                // Bottom Action Buttons
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.End,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    TextButton(onClick = onDismiss) {
+                        Text("Cancel", color = Color.LightGray)
+                    }
+                    Spacer(modifier = Modifier.width(6.dp))
+                    Button(
+                        onClick = {
+                            if (selectedIndex in entries.indices) {
+                                val selectedName = entries[selectedIndex].name
+                                onSelectDataset(selectedName)
+                                onDismiss()
+                            }
+                        },
+                        enabled = selectedIndex in entries.indices,
+                        colors = ButtonDefaults.buttonColors(containerColor = Color(0xFF2B8A3E))
+                    ) {
+                        Text("Select Dataset")
+                    }
+                }
+            }
+        }
+    }
+}

src/main/java/haus/nightmare/a3270/ui/OiaStatusBar.kt

@@ -0,0 +1,242 @@
+package haus.nightmare.a3270.ui
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import haus.nightmare.lib3270j.ConnectionState
+
+@Composable
+fun OiaStatusBar(
+    connectionState: ConnectionState,
+    currentHost: String,
+    isKeyboardLocked: Boolean,
+    oiaText: String,
+    cursorAddr: Int,
+    rows: Int,
+    cols: Int,
+    isTls: Boolean = false,
+    isTlsVerified: Boolean = true,
+    graphicsMode: String = "NONE",
+    codePage: String = "037",
+    isLightPenMode: Boolean = false,
+    isInsertMode: Boolean = false,
+    inhibitReason: Int = 0,
+    luName: String = "",
+    modifier: Modifier = Modifier
+) {
+    val row = if (cols > 0 && rows > 0) ((cursorAddr / cols) % rows) + 1 else 1
+    val col = if (cols > 0) (cursorAddr % cols) + 1 else 1
+    val posStr = String.format("%02d/%02d", row, col)
+
+    val hostText = if (currentHost.isNotBlank()) currentHost else oiaText
+
+    val connTypeBadge = when (connectionState) {
+        ConnectionState.CONNECTED_3270 -> "TN3270"
+        ConnectionState.CONNECTED_TN3270E -> "TN3270E"
+        ConnectionState.CONNECTED_SSCP -> "SSCP-LU"
+        ConnectionState.CONNECTED_NVT, ConnectionState.CONNECTED_NVT_CHAR, ConnectionState.CONNECTED_E_NVT -> "NVT"
+        ConnectionState.CONNECTED_UNBOUND -> "UNBOUND"
+        ConnectionState.TCP_PENDING, ConnectionState.TELNET_PENDING -> "CONNECTING"
+        ConnectionState.NOT_CONNECTED -> "OFFLINE"
+        else -> connectionState.name
+    }
+
+    val (lockStatusText, lockStatusColor) = if (!connectionState.isConnected()) {
+        "OFFLINE" to Color(0xFF868E96)
+    } else if (inhibitReason != 0) {
+        val txt = when (inhibitReason) {
+            haus.nightmare.lib3270j.ecl.ECLConstants.INHIBIT_SYSTEM_LOCK -> "X SYSTEM"
+            haus.nightmare.lib3270j.ecl.ECLConstants.INHIBIT_COMM_CHECK -> "X COMM"
+            haus.nightmare.lib3270j.ecl.ECLConstants.INHIBIT_NUMERIC_ONLY -> "X NUM"
+            haus.nightmare.lib3270j.ecl.ECLConstants.INHIBIT_PROTECTED_FIELD -> "X PROT"
+            haus.nightmare.lib3270j.ecl.ECLConstants.INHIBIT_OVERFLOW -> "X >"
+            haus.nightmare.lib3270j.ecl.ECLConstants.INHIBIT_OPERATOR_DUE -> "X OP"
+            else -> "X LOCKED"
+        }
+        txt to Color(0xFFFF6B6B)
+    } else if (isKeyboardLocked) {
+        "X SYSTEM" to Color(0xFFFF6B6B)
+    } else if (isInsertMode) {
+        "INSERT" to Color(0xFF339AF0)
+    } else {
+        "READY" to Color(0xFF51CF66)
+    }
+
+    Row(
+        modifier = modifier
+            .fillMaxWidth()
+            .height(26.dp)
+            .background(Color(0xFF161719))
+            .padding(horizontal = 8.dp),
+        verticalAlignment = Alignment.CenterVertically,
+        horizontalArrangement = Arrangement.SpaceBetween
+    ) {
+        // Connected Host & Status Indicator
+        Row(
+            verticalAlignment = Alignment.CenterVertically,
+            modifier = Modifier.weight(1f)
+        ) {
+            Box(
+                modifier = Modifier
+                    .size(8.dp)
+                    .background(if (connectionState.isConnected()) Color(0xFF51CF66) else Color(0xFF868E96))
+            )
+            Spacer(modifier = Modifier.width(6.dp))
+            Text(
+                text = hostText,
+                color = Color.White,
+                fontSize = 11.sp,
+                fontFamily = FontFamily.Monospace,
+                fontWeight = FontWeight.Bold,
+                maxLines = 1
+            )
+
+            // TLS Badge
+            if (connectionState.isConnected() && isTls) {
+                Spacer(modifier = Modifier.width(6.dp))
+                Surface(
+                    color = if (isTlsVerified) Color(0xFF51CF66).copy(alpha = 0.2f) else Color(0xFFFFB450).copy(alpha = 0.2f),
+                    shape = RoundedCornerShape(4.dp)
+                ) {
+                    Text(
+                        text = if (isTlsVerified) "🔒 TLS" else "🔓 TLS",
+                        color = if (isTlsVerified) Color(0xFF51CF66) else Color(0xFFFFB450),
+                        fontSize = 9.sp,
+                        fontFamily = FontFamily.Monospace,
+                        fontWeight = FontWeight.Bold,
+                        modifier = Modifier.padding(horizontal = 4.dp, vertical = 1.dp)
+                    )
+                }
+            }
+
+            // GFX Mode Badge
+            if (connectionState.isConnected() && graphicsMode != "NONE" && graphicsMode.isNotBlank()) {
+                Spacer(modifier = Modifier.width(6.dp))
+                Surface(
+                    color = Color(0xFF22B8CF).copy(alpha = 0.2f),
+                    shape = RoundedCornerShape(4.dp)
+                ) {
+                    Text(
+                        text = when (graphicsMode) {
+                            "VECTOR_GRAPHICS" -> "GOCA"
+                            "PROGRAMMED_SYMBOLS" -> "PS"
+                            else -> "GFX"
+                        },
+                        color = Color(0xFF22B8CF),
+                        fontSize = 9.sp,
+                        fontFamily = FontFamily.Monospace,
+                        fontWeight = FontWeight.Bold,
+                        modifier = Modifier.padding(horizontal = 4.dp, vertical = 1.dp)
+                    )
+                }
+            }
+
+            // CodePage Badge
+            if (connectionState.isConnected() && codePage.isNotBlank()) {
+                Spacer(modifier = Modifier.width(6.dp))
+                Surface(
+                    color = Color(0xFFFA5252).copy(alpha = 0.2f),
+                    shape = RoundedCornerShape(4.dp)
+                ) {
+                    Text(
+                        text = "CP$codePage",
+                        color = Color(0xFFFF8787),
+                        fontSize = 9.sp,
+                        fontFamily = FontFamily.Monospace,
+                        fontWeight = FontWeight.Bold,
+                        modifier = Modifier.padding(horizontal = 4.dp, vertical = 1.dp)
+                    )
+                }
+            }
+
+            // Light Pen Badge
+            if (isLightPenMode) {
+                Spacer(modifier = Modifier.width(6.dp))
+                Surface(
+                    color = Color(0xFFFFFF50).copy(alpha = 0.25f),
+                    shape = RoundedCornerShape(4.dp)
+                ) {
+                    Text(
+                        text = "LP",
+                        color = Color(0xFFFFFF50),
+                        fontSize = 9.sp,
+                        fontFamily = FontFamily.Monospace,
+                        fontWeight = FontWeight.Bold,
+                        modifier = Modifier.padding(horizontal = 4.dp, vertical = 1.dp)
+                    )
+                }
+            }
+
+            // Connection Type Badge (TN3270, TN3270E, SSCP, NVT)
+            if (connectionState.isConnected()) {
+                Spacer(modifier = Modifier.width(6.dp))
+                Surface(
+                    color = Color(0xFF7950F2).copy(alpha = 0.25f),
+                    shape = RoundedCornerShape(4.dp)
+                ) {
+                    Text(
+                        text = connTypeBadge,
+                        color = Color(0xFFB197FC),
+                        fontSize = 9.sp,
+                        fontFamily = FontFamily.Monospace,
+                        fontWeight = FontWeight.Bold,
+                        modifier = Modifier.padding(horizontal = 4.dp, vertical = 1.dp)
+                    )
+                }
+            }
+
+            // LU Name Badge
+            if (connectionState.isConnected() && luName.isNotBlank()) {
+                Spacer(modifier = Modifier.width(6.dp))
+                Surface(
+                    color = Color(0xFF40C057).copy(alpha = 0.2f),
+                    shape = RoundedCornerShape(4.dp)
+                ) {
+                    Text(
+                        text = "LU:$luName",
+                        color = Color(0xFF69DB7C),
+                        fontSize = 9.sp,
+                        fontFamily = FontFamily.Monospace,
+                        fontWeight = FontWeight.Bold,
+                        modifier = Modifier.padding(horizontal = 4.dp, vertical = 1.dp)
+                    )
+                }
+            }
+        }
+
+        // Terminal Keyboard Lock Status Badge (X SYSTEM vs READY)
+        Surface(
+            color = lockStatusColor.copy(alpha = 0.2f),
+            shape = RoundedCornerShape(4.dp),
+            modifier = Modifier.padding(horizontal = 4.dp)
+        ) {
+            Text(
+                text = lockStatusText,
+                color = lockStatusColor,
+                fontSize = 10.sp,
+                fontFamily = FontFamily.Monospace,
+                fontWeight = FontWeight.Bold,
+                modifier = Modifier.padding(horizontal = 6.dp, vertical = 2.dp)
+            )
+        }
+
+        // Cursor Position
+        Text(
+            text = "R$posStr",
+            color = Color(0xFF22B8CF),
+            fontSize = 11.sp,
+            fontFamily = FontFamily.Monospace,
+            fontWeight = FontWeight.Bold
+        )
+    }
+}

src/main/java/haus/nightmare/a3270/ui/PrinterSessionDialog.kt

@@ -0,0 +1,487 @@
+package haus.nightmare.a3270.ui
+
+import android.content.Context
+import android.content.Intent
+import android.os.Environment
+import android.print.PrintAttributes
+import android.print.PrintDocumentAdapter
+import android.print.PrintManager
+import android.webkit.WebView
+import android.webkit.WebViewClient
+import android.widget.Toast
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.horizontalScroll
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalClipboardManager
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.AnnotatedString
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.KeyboardCapitalization
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.compose.ui.window.Dialog
+import androidx.compose.ui.window.DialogProperties
+import haus.nightmare.lib3270j.printer.*
+import java.io.File
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+
+@Composable
+fun PrinterSessionDialog(
+    initialHost: String = "127.0.0.1",
+    initialPort: Int = 23,
+    initialCodePage: String = "037",
+    initialUseTls: Boolean = false,
+    onDismiss: () -> Unit
+) {
+    val context = LocalContext.current
+    val clipboardManager = LocalClipboardManager.current
+
+    var host by remember { mutableStateOf(initialHost.ifBlank { "127.0.0.1" }) }
+    var portStr by remember { mutableStateOf(if (initialPort > 0) initialPort.toString() else "23") }
+    var printerLu by remember { mutableStateOf("") }
+    var assocDisplayLu by remember { mutableStateOf("") }
+    var codePage by remember { mutableStateOf(initialCodePage) }
+    var useTls by remember { mutableStateOf(initialUseTls) }
+    var pdtType by remember { mutableStateOf("DEFAULT") }
+
+    var isConnected by remember { mutableStateOf(false) }
+    var sessionStatus by remember { mutableStateOf("Disconnected") }
+    var spoolText by remember { mutableStateOf("") }
+    var pageCount by remember { mutableIntStateOf(0) }
+    var byteCount by remember { mutableIntStateOf(0) }
+
+    var printerClient by remember { mutableStateOf<Telnet3270EPClient?>(null) }
+
+    val codePagesList = haus.nightmare.a3270.storage.HostStorage.AVAILABLE_CODE_PAGES
+
+    fun startSession() {
+        val port = portStr.trim().toIntOrNull() ?: 23
+        val config = PrinterConfig(host.trim(), port).apply {
+            this.isUseTls = useTls
+            this.codePage = codePage
+            if (printerLu.isNotBlank()) this.printerLuName = printerLu.trim()
+            if (assocDisplayLu.isNotBlank()) this.associatedDisplayLuName = assocDisplayLu.trim()
+            this.destinationType = PrinterConfig.DestinationType.MEMORY
+
+            val pdt = when (pdtType) {
+                "PCL5" -> haus.nightmare.lib3270j.printer.PrinterDefinitionTable.createPcl5PDT()
+                "EPSON_ESC_P" -> haus.nightmare.lib3270j.printer.PrinterDefinitionTable.createEpsonEscPPDT()
+                "POSTSCRIPT" -> haus.nightmare.lib3270j.printer.PrinterDefinitionTable.createPostScriptPDT()
+                else -> haus.nightmare.lib3270j.printer.PrinterDefinitionTable.createPlainTextPDT()
+            }
+            if (pdt != null) {
+                this.printerDefinitionTable = pdt
+            }
+        }
+
+        val client = Telnet3270EPClient(config)
+        client.addPrintListener(object : PrintSessionListener {
+            override fun onPrintJobStarted(event: PrintSessionEvent) {
+                sessionStatus = "Printing job: ${event.jobName ?: "Job"}"
+            }
+
+            override fun onPrintJobData(event: PrintSessionEvent) {
+                val captured = client.pd?.capturedText
+                if (captured != null) spoolText = captured
+                byteCount = event.byteCount.toInt()
+            }
+
+            override fun onPrintJobPageComplete(event: PrintSessionEvent) {
+                pageCount = event.pageNumber
+                byteCount = event.byteCount.toInt()
+                val captured = client.pd?.capturedText
+                if (captured != null) spoolText = captured
+            }
+
+            override fun onPrintJobComplete(event: PrintSessionEvent) {
+                pageCount = event.totalPages
+                byteCount = event.byteCount.toInt()
+                val captured = client.pd?.capturedText
+                if (captured != null) spoolText = captured
+                sessionStatus = "Print Job Complete"
+            }
+
+            override fun onPrinterStatusChanged(event: PrintSessionEvent) {
+                val status = event.statusCode
+                isConnected = (status == PrinterConstants.STATUS_CONNECTED || status == PrinterConstants.STATUS_PRINTING)
+                sessionStatus = when (status) {
+                    PrinterConstants.STATUS_CONNECTED -> "Connected"
+                    PrinterConstants.STATUS_CONNECTING -> "Connecting..."
+                    PrinterConstants.STATUS_PRINTING -> "Printing..."
+                    else -> "Disconnected"
+                }
+            }
+
+            override fun onPrinterError(event: PrintSessionEvent) {
+                sessionStatus = "Error: ${event.message ?: "Code ${event.statusCode}"}"
+            }
+        })
+
+        printerClient = client
+        sessionStatus = "Connecting..."
+        val ok = client.connect()
+        if (!ok) {
+            sessionStatus = "Failed to initiate printer connection."
+        }
+    }
+
+    fun stopSession() {
+        printerClient?.disconnect()
+        printerClient = null
+        isConnected = false
+        sessionStatus = "Disconnected"
+    }
+
+    DisposableEffect(Unit) {
+        onDispose {
+            printerClient?.disconnect()
+            printerClient = null
+        }
+    }
+
+    fun printViaAndroidService() {
+        if (spoolText.isBlank()) {
+            Toast.makeText(context, "No printer spool to print.", Toast.LENGTH_SHORT).show()
+            return
+        }
+        try {
+            val printManager = context.getSystemService(Context.PRINT_SERVICE) as? PrintManager
+            if (printManager != null) {
+                val webView = WebView(context)
+                webView.webViewClient = object : WebViewClient() {
+                    override fun onPageFinished(view: WebView?, url: String?) {
+                        val printAdapter: PrintDocumentAdapter = webView.createPrintDocumentAdapter("3287_Print_Job")
+                        printManager.print("3287 Print Job", printAdapter, PrintAttributes.Builder().build())
+                    }
+                }
+                val htmlDoc = "<html><body style='font-family:monospace; font-size:12px; white-space:pre;'>${spoolText.replace("<", "&lt;").replace(">", "&gt;")}</body></html>"
+                webView.loadDataWithBaseURL(null, htmlDoc, "text/html", "UTF-8", null)
+            }
+        } catch (e: Exception) {
+            Toast.makeText(context, "Print failed: ${e.message}", Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    fun saveSpoolToFile() {
+        if (spoolText.isBlank()) {
+            Toast.makeText(context, "Spool is empty.", Toast.LENGTH_SHORT).show()
+            return
+        }
+        try {
+            val downloadsDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS)
+            if (!downloadsDir.exists()) downloadsDir.mkdirs()
+            val timeStamp = SimpleDateFormat("yyyyMMdd_HHmmss", Locale.US).format(Date())
+            val file = File(downloadsDir, "3287_spool_$timeStamp.txt")
+            file.writeText(spoolText)
+            Toast.makeText(context, "Saved to Downloads/${file.name}", Toast.LENGTH_SHORT).show()
+        } catch (e: Exception) {
+            Toast.makeText(context, "Save failed: ${e.message}", Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    fun shareSpool() {
+        if (spoolText.isBlank()) {
+            Toast.makeText(context, "Spool is empty.", Toast.LENGTH_SHORT).show()
+            return
+        }
+        try {
+            val intent = Intent(Intent.ACTION_SEND).apply {
+                type = "text/plain"
+                putExtra(Intent.EXTRA_SUBJECT, "3287 Printer Spool")
+                putExtra(Intent.EXTRA_TEXT, spoolText)
+            }
+            context.startActivity(Intent.createChooser(intent, "Share 3287 Spool"))
+        } catch (e: Exception) {
+            Toast.makeText(context, "Share failed: ${e.message}", Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    Dialog(
+        onDismissRequest = onDismiss,
+        properties = DialogProperties(usePlatformDefaultWidth = false)
+    ) {
+        Card(
+            shape = RoundedCornerShape(16.dp),
+            colors = CardDefaults.cardColors(containerColor = Color(0xFF1E1E1E)),
+            modifier = Modifier
+                .fillMaxWidth(0.95f)
+                .heightIn(max = 700.dp)
+                .padding(vertical = 16.dp)
+        ) {
+            Column(
+                modifier = Modifier
+                    .fillMaxSize()
+                    .padding(16.dp),
+                verticalArrangement = Arrangement.spacedBy(8.dp)
+            ) {
+                // Header
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    Column {
+                        Text(
+                            "IBM 3287 Printer Session",
+                            fontWeight = FontWeight.Bold,
+                            fontSize = 16.sp,
+                            color = Color.White
+                        )
+                        Text(
+                            "TN3270E SCS / 3270 DS Print Emulation",
+                            fontSize = 11.sp,
+                            color = Color.Gray
+                        )
+                    }
+                    Surface(
+                        color = if (isConnected) Color(0xFF51CF66).copy(alpha = 0.2f) else Color(0xFFFF6B6B).copy(alpha = 0.2f),
+                        shape = RoundedCornerShape(4.dp)
+                    ) {
+                        Text(
+                            text = sessionStatus,
+                            color = if (isConnected) Color(0xFF51CF66) else Color(0xFFFF6B6B),
+                            fontSize = 10.sp,
+                            fontWeight = FontWeight.Bold,
+                            modifier = Modifier.padding(horizontal = 6.dp, vertical = 2.dp)
+                        )
+                    }
+                }
+
+                HorizontalDivider(color = Color(0xFF2C2D30))
+
+                // Config Row 1: Host & Port
+                if (!isConnected) {
+                    Row(
+                        modifier = Modifier.fillMaxWidth(),
+                        horizontalArrangement = Arrangement.spacedBy(6.dp)
+                    ) {
+                        OutlinedTextField(
+                            value = host,
+                            onValueChange = { host = it },
+                            label = { Text("Host") },
+                            singleLine = true,
+                            modifier = Modifier.weight(2.5f)
+                        )
+                        OutlinedTextField(
+                            value = portStr,
+                            onValueChange = { portStr = it },
+                            label = { Text("Port") },
+                            singleLine = true,
+                            keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
+                            modifier = Modifier.weight(1f)
+                        )
+                    }
+
+                    // Config Row 2: Printer LU & Assoc Display LU
+                    Row(
+                        modifier = Modifier.fillMaxWidth(),
+                        horizontalArrangement = Arrangement.spacedBy(6.dp)
+                    ) {
+                        OutlinedTextField(
+                            value = printerLu,
+                            onValueChange = { printerLu = it },
+                            label = { Text("Printer LU (Opt)") },
+                            singleLine = true,
+                            modifier = Modifier.weight(1f)
+                        )
+                        OutlinedTextField(
+                            value = assocDisplayLu,
+                            onValueChange = { assocDisplayLu = it },
+                            label = { Text("Display LU (Opt)") },
+                            singleLine = true,
+                            modifier = Modifier.weight(1f)
+                        )
+                    }
+
+                    // PDT, Code Page & TLS Row
+                    Row(
+                        modifier = Modifier.fillMaxWidth(),
+                        verticalAlignment = Alignment.CenterVertically,
+                        horizontalArrangement = Arrangement.spacedBy(6.dp)
+                    ) {
+                        var pdtExpanded by remember { mutableStateOf(false) }
+                        val pdtList = listOf(
+                            "DEFAULT" to "Plain Text",
+                            "PCL5" to "HP PCL 5/6",
+                            "EPSON_ESC_P" to "Epson ESC/P",
+                            "POSTSCRIPT" to "PostScript"
+                        )
+                        val selectedPdtLabel = pdtList.firstOrNull { it.first == pdtType }?.second ?: "PDT"
+                        Box(modifier = Modifier.weight(1f)) {
+                            OutlinedButton(
+                                onClick = { pdtExpanded = true },
+                                modifier = Modifier.fillMaxWidth()
+                            ) {
+                                Text("PDT: $selectedPdtLabel", fontSize = 10.sp, maxLines = 1)
+                            }
+                            DropdownMenu(
+                                expanded = pdtExpanded,
+                                onDismissRequest = { pdtExpanded = false },
+                                modifier = Modifier.background(Color(0xFF2C2D30))
+                            ) {
+                                pdtList.forEach { (type, label) ->
+                                    DropdownMenuItem(
+                                        text = { Text(label, fontSize = 12.sp, color = Color.White) },
+                                        onClick = {
+                                            pdtType = type
+                                            pdtExpanded = false
+                                        }
+                                    )
+                                }
+                            }
+                        }
+
+                        var cpExpanded by remember { mutableStateOf(false) }
+                        Box(modifier = Modifier.weight(1f)) {
+                            OutlinedButton(
+                                onClick = { cpExpanded = true },
+                                modifier = Modifier.fillMaxWidth()
+                            ) {
+                                Text("CP$codePage", fontSize = 10.sp, maxLines = 1)
+                            }
+                            DropdownMenu(
+                                expanded = cpExpanded,
+                                onDismissRequest = { cpExpanded = false },
+                                modifier = Modifier.background(Color(0xFF2C2D30)).heightIn(max = 240.dp)
+                            ) {
+                                codePagesList.forEach { (cpId, label) ->
+                                    DropdownMenuItem(
+                                        text = { Text(label, fontSize = 12.sp, color = Color.White) },
+                                        onClick = {
+                                            codePage = cpId
+                                            cpExpanded = false
+                                        }
+                                    )
+                                }
+                            }
+                        }
+
+                        Row(
+                            verticalAlignment = Alignment.CenterVertically,
+                            modifier = Modifier.clickable { useTls = !useTls }
+                        ) {
+                            Checkbox(checked = useTls, onCheckedChange = { useTls = it })
+                            Text("TLS", fontSize = 11.sp, color = Color.White)
+                        }
+
+                        Button(
+                            onClick = { startSession() },
+                            colors = ButtonDefaults.buttonColors(containerColor = Color(0xFF2B8A3E))
+                        ) {
+                            Text("Connect", fontSize = 11.sp)
+                        }
+                    }
+                } else {
+                    Row(
+                        modifier = Modifier.fillMaxWidth(),
+                        horizontalArrangement = Arrangement.SpaceBetween,
+                        verticalAlignment = Alignment.CenterVertically
+                    ) {
+                        Text(
+                            "Pages: $pageCount  |  Bytes: $byteCount",
+                            fontSize = 12.sp,
+                            color = Color.LightGray,
+                            fontFamily = FontFamily.Monospace
+                        )
+                        Button(
+                            onClick = { stopSession() },
+                            colors = ButtonDefaults.buttonColors(containerColor = Color(0xFFC92A2A))
+                        ) {
+                            Text("Disconnect Printer")
+                        }
+                    }
+                }
+
+                HorizontalDivider(color = Color(0xFF2C2D30))
+
+                // Spool Display Box
+                Text("Print Spool Buffer:", fontSize = 12.sp, color = Color.Gray)
+                Box(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .weight(1f)
+                        .background(Color(0xFF141517), shape = RoundedCornerShape(8.dp))
+                        .padding(10.dp)
+                ) {
+                    if (spoolText.isBlank()) {
+                        Box(modifier = Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
+                            Text("No printed output spooled yet.", color = Color.DarkGray, fontSize = 12.sp)
+                        }
+                    } else {
+                        Text(
+                            text = spoolText,
+                            fontFamily = FontFamily.Monospace,
+                            fontSize = 11.sp,
+                            color = Color(0xFFA5D6A7),
+                            modifier = Modifier
+                                .fillMaxSize()
+                                .verticalScroll(rememberScrollState())
+                                .horizontalScroll(rememberScrollState())
+                        )
+                    }
+                }
+
+                // Spool Action Buttons
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    TextButton(onClick = onDismiss) {
+                        Text("Close", color = Color.LightGray)
+                    }
+
+                    Row(horizontalArrangement = Arrangement.spacedBy(6.dp)) {
+                        OutlinedButton(
+                            onClick = {
+                                spoolText = ""
+                                pageCount = 0
+                                byteCount = 0
+                                printerClient?.pd?.resetCapture()
+                            }
+                        ) {
+                            Text("Clear", fontSize = 11.sp)
+                        }
+
+                        OutlinedButton(
+                            onClick = {
+                                clipboardManager.setText(AnnotatedString(spoolText))
+                                Toast.makeText(context, "Copied spool to clipboard", Toast.LENGTH_SHORT).show()
+                            }
+                        ) {
+                            Text("Copy", fontSize = 11.sp)
+                        }
+
+                        Button(
+                            onClick = { saveSpoolToFile() },
+                            colors = ButtonDefaults.buttonColors(containerColor = Color(0xFF1C7ED6))
+                        ) {
+                            Text("Save", fontSize = 11.sp)
+                        }
+
+                        Button(
+                            onClick = { printViaAndroidService() },
+                            colors = ButtonDefaults.buttonColors(containerColor = Color(0xFF2B8A3E))
+                        ) {
+                            Text("Print 🖨️", fontSize = 11.sp)
+                        }
+                    }
+                }
+            }
+        }
+    }
+}

src/main/java/haus/nightmare/a3270/ui/ScreenExporterDialog.kt

@@ -0,0 +1,471 @@
+package haus.nightmare.a3270.ui
+
+import android.content.Context
+import android.content.Intent
+import android.graphics.Bitmap
+import android.graphics.Canvas
+import android.graphics.Paint
+import android.graphics.Typeface
+import android.net.Uri
+import android.os.Environment
+import android.widget.Toast
+import androidx.compose.foundation.background
+import androidx.compose.foundation.horizontalScroll
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalClipboardManager
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.AnnotatedString
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.compose.ui.window.Dialog
+import androidx.compose.ui.window.DialogProperties
+import androidx.core.content.FileProvider
+import haus.nightmare.lib3270j.graphics.GraphicsPlane
+import haus.nightmare.lib3270j.graphics.ProgramSymbolManager
+import haus.nightmare.lib3270j.protocol.DS3270Constants.*
+import haus.nightmare.lib3270j.screen.ScreenBuffer
+import java.io.File
+import java.io.FileOutputStream
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+
+@Composable
+fun ScreenExporterDialog(
+    screenBuffer: ScreenBuffer?,
+    rows: Int,
+    cols: Int,
+    programSymbolManager: ProgramSymbolManager? = null,
+    graphicsPlane: GraphicsPlane? = null,
+    maskHidden: Boolean = true,
+    onDismiss: () -> Unit
+) {
+    val context = LocalContext.current
+    val clipboardManager = LocalClipboardManager.current
+
+    var exportFormat by remember { mutableStateOf("TEXT") } // TEXT, HTML, PNG
+    var statusMessage by remember { mutableStateOf("") }
+
+    val plainTextContent = remember(screenBuffer) {
+        generatePlainText(screenBuffer, rows, cols, maskHidden)
+    }
+
+    val htmlContent = remember(screenBuffer) {
+        generateHtml(screenBuffer, rows, cols, maskHidden)
+    }
+
+    fun shareText(text: String, isHtml: Boolean) {
+        try {
+            val intent = Intent(Intent.ACTION_SEND).apply {
+                type = if (isHtml) "text/html" else "text/plain"
+                putExtra(Intent.EXTRA_SUBJECT, "3270 Screen Capture")
+                putExtra(Intent.EXTRA_TEXT, text)
+            }
+            context.startActivity(Intent.createChooser(intent, "Share 3270 Screen"))
+        } catch (e: Exception) {
+            statusMessage = "Share failed: ${e.message}"
+        }
+    }
+
+    fun sharePng(bmp: Bitmap) {
+        try {
+            val cacheDir = File(context.cacheDir, "exports").apply { mkdirs() }
+            val timeStamp = SimpleDateFormat("yyyyMMdd_HHmmss", Locale.US).format(Date())
+            val file = File(cacheDir, "screen_$timeStamp.png")
+            FileOutputStream(file).use { out ->
+                bmp.compress(Bitmap.CompressFormat.PNG, 100, out)
+            }
+            val uri: Uri = FileProvider.getUriForFile(
+                context,
+                "${context.packageName}.fileprovider",
+                file
+            )
+            val intent = Intent(Intent.ACTION_SEND).apply {
+                type = "image/png"
+                putExtra(Intent.EXTRA_STREAM, uri)
+                addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+            }
+            context.startActivity(Intent.createChooser(intent, "Share Screen PNG"))
+        } catch (e: Exception) {
+            statusMessage = "PNG Share failed: ${e.message}"
+        }
+    }
+
+    fun saveFileToStorage(format: String): String {
+        return try {
+            val downloadsDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS)
+            if (!downloadsDir.exists()) downloadsDir.mkdirs()
+            val timeStamp = SimpleDateFormat("yyyyMMdd_HHmmss", Locale.US).format(Date())
+            when (format) {
+                "HTML" -> {
+                    val file = File(downloadsDir, "3270_screen_$timeStamp.html")
+                    file.writeText(htmlContent)
+                    "Saved to Downloads/${file.name}"
+                }
+                "PNG" -> {
+                    val bmp = generateBitmap(screenBuffer, rows, cols, programSymbolManager, graphicsPlane, maskHidden)
+                    val file = File(downloadsDir, "3270_screen_$timeStamp.png")
+                    FileOutputStream(file).use { out ->
+                        bmp.compress(Bitmap.CompressFormat.PNG, 100, out)
+                    }
+                    "Saved to Downloads/${file.name}"
+                }
+                else -> {
+                    val file = File(downloadsDir, "3270_screen_$timeStamp.txt")
+                    file.writeText(plainTextContent)
+                    "Saved to Downloads/${file.name}"
+                }
+            }
+        } catch (e: Exception) {
+            "Save failed: ${e.message}"
+        }
+    }
+
+    Dialog(
+        onDismissRequest = onDismiss,
+        properties = DialogProperties(usePlatformDefaultWidth = false)
+    ) {
+        Card(
+            shape = RoundedCornerShape(16.dp),
+            colors = CardDefaults.cardColors(containerColor = Color(0xFF1E1E1E)),
+            modifier = Modifier
+                .fillMaxWidth(0.95f)
+                .heightIn(max = 680.dp)
+                .padding(vertical = 16.dp)
+        ) {
+            Column(
+                modifier = Modifier
+                    .fillMaxSize()
+                    .padding(16.dp),
+                verticalArrangement = Arrangement.spacedBy(10.dp)
+            ) {
+                // Header
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    Text(
+                        "Export / Share Screen",
+                        fontWeight = FontWeight.Bold,
+                        fontSize = 16.sp,
+                        color = Color.White
+                    )
+                    Row {
+                        FilterChip(
+                            selected = (exportFormat == "TEXT"),
+                            onClick = { exportFormat = "TEXT" },
+                            label = { Text("Plain Text", fontSize = 11.sp) }
+                        )
+                        Spacer(modifier = Modifier.width(4.dp))
+                        FilterChip(
+                            selected = (exportFormat == "HTML"),
+                            onClick = { exportFormat = "HTML" },
+                            label = { Text("HTML", fontSize = 11.sp) }
+                        )
+                        Spacer(modifier = Modifier.width(4.dp))
+                        FilterChip(
+                            selected = (exportFormat == "PNG"),
+                            onClick = { exportFormat = "PNG" },
+                            label = { Text("PNG", fontSize = 11.sp) }
+                        )
+                    }
+                }
+
+                HorizontalDivider(color = Color(0xFF2C2D30))
+
+                // Preview Box
+                Box(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .weight(1f)
+                        .background(Color(0xFF141517), shape = RoundedCornerShape(8.dp))
+                        .padding(10.dp)
+                ) {
+                    if (exportFormat == "PNG") {
+                        Column(
+                            modifier = Modifier.fillMaxSize(),
+                            verticalArrangement = Arrangement.Center,
+                            horizontalAlignment = Alignment.CenterHorizontally
+                        ) {
+                            Text("🖼️ PNG Image Export", fontSize = 15.sp, fontWeight = FontWeight.Bold, color = Color.White)
+                            Spacer(modifier = Modifier.height(6.dp))
+                            Text("Full resolution bitmap with 3270 styling and graphics plane.", fontSize = 12.sp, color = Color.LightGray)
+                        }
+                    } else {
+                        val textToShow = if (exportFormat == "HTML") htmlContent else plainTextContent
+                        Text(
+                            text = textToShow,
+                            fontFamily = FontFamily.Monospace,
+                            fontSize = 10.sp,
+                            color = Color(0xFFA5D6A7),
+                            modifier = Modifier
+                                .fillMaxSize()
+                                .verticalScroll(rememberScrollState())
+                                .horizontalScroll(rememberScrollState())
+                        )
+                    }
+                }
+
+                if (statusMessage.isNotBlank()) {
+                    Text(
+                        text = statusMessage,
+                        fontSize = 12.sp,
+                        color = Color(0xFF51CF66)
+                    )
+                }
+
+                // Action Buttons
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    TextButton(onClick = onDismiss) {
+                        Text("Close", color = Color.LightGray)
+                    }
+
+                    Row(horizontalArrangement = Arrangement.spacedBy(6.dp)) {
+                        if (exportFormat != "PNG") {
+                            OutlinedButton(
+                                onClick = {
+                                    val content = if (exportFormat == "HTML") htmlContent else plainTextContent
+                                    clipboardManager.setText(AnnotatedString(content))
+                                    statusMessage = "Copied to clipboard."
+                                    Toast.makeText(context, "Copied to clipboard", Toast.LENGTH_SHORT).show()
+                                }
+                            ) {
+                                Text("Copy", fontSize = 12.sp)
+                            }
+                        }
+
+                        Button(
+                            onClick = {
+                                val msg = saveFileToStorage(exportFormat)
+                                statusMessage = msg
+                                Toast.makeText(context, msg, Toast.LENGTH_SHORT).show()
+                            },
+                            colors = ButtonDefaults.buttonColors(containerColor = Color(0xFF1C7ED6))
+                        ) {
+                            Text("Save File", fontSize = 12.sp)
+                        }
+
+                        Button(
+                            onClick = {
+                                when (exportFormat) {
+                                    "PNG" -> {
+                                        val bmp = generateBitmap(screenBuffer, rows, cols, programSymbolManager, graphicsPlane, maskHidden)
+                                        sharePng(bmp)
+                                    }
+                                    "HTML" -> shareText(htmlContent, true)
+                                    else -> shareText(plainTextContent, false)
+                                }
+                            },
+                            colors = ButtonDefaults.buttonColors(containerColor = Color(0xFF2B8A3E))
+                        ) {
+                            Text("Share 📤", fontSize = 12.sp)
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+private fun generatePlainText(screenBuffer: ScreenBuffer?, rows: Int, cols: Int, maskHidden: Boolean): String {
+    if (screenBuffer == null) return ""
+    val sb = StringBuilder()
+    var currentHidden = false
+
+    for (r in 0 until rows) {
+        val rowSb = StringBuilder()
+        for (c in 0 until cols) {
+            val addr = r * cols + c
+            val cell = screenBuffer.getCell(addr)
+            if (cell.fa.toInt() != 0) {
+                val faVal = cell.fa.toInt() and 0xFF
+                currentHidden = (faVal and FA_INT_HIGH_SEL) == 0
+                rowSb.append(' ')
+            } else {
+                if (currentHidden && maskHidden) {
+                    rowSb.append(' ')
+                } else {
+                    val ch = cell.ucs4
+                    rowSb.append(if (ch in ' '..'~' || ch > '\u007F') ch else ' ')
+                }
+            }
+        }
+        sb.append(rowSb.toString().trimEnd()).append("\n")
+    }
+    return sb.toString()
+}
+
+private fun generateHtml(screenBuffer: ScreenBuffer?, rows: Int, cols: Int, maskHidden: Boolean): String {
+    if (screenBuffer == null) return "<html><body><pre></pre></body></html>"
+    val sb = StringBuilder()
+    sb.append("<!DOCTYPE html>\n<html>\n<head>\n")
+    sb.append("<meta charset=\"UTF-8\">\n")
+    sb.append("<style>\n")
+    sb.append("body { background-color: #0A0A0A; color: #00FF66; font-family: monospace; font-size: 14px; margin: 20px; }\n")
+    sb.append("pre { line-height: 1.2; font-family: monospace; }\n")
+    sb.append(".c-green { color: #00FF66; }\n")
+    sb.append(".c-white { color: #FFFFFF; }\n")
+    sb.append(".c-blue { color: #3399FF; }\n")
+    sb.append(".c-red { color: #FF3333; }\n")
+    sb.append(".c-yellow { color: #FFFF33; }\n")
+    sb.append(".c-turquoise { color: #00E5FF; }\n")
+    sb.append(".c-pink { color: #FF66CC; }\n")
+    sb.append("</style>\n</head>\n<body>\n<pre>\n")
+
+    var currentHidden = false
+    var currentProt = false
+    var currentHi = false
+
+    for (r in 0 until rows) {
+        for (c in 0 until cols) {
+            val addr = r * cols + c
+            val cell = screenBuffer.getCell(addr)
+            if (cell.fa.toInt() != 0) {
+                val faVal = cell.fa.toInt() and 0xFF
+                currentProt = (faVal and FA_PROTECT) != 0
+                currentHi = (faVal and FA_INT_HIGH_SEL) == FA_INT_HIGH_SEL
+                currentHidden = (faVal and FA_INT_HIGH_SEL) == 0
+                sb.append(' ')
+            } else {
+                if (currentHidden && maskHidden) {
+                    sb.append(' ')
+                } else {
+                    val ch = cell.ucs4
+                    val colorClass = when {
+                        currentHi -> "c-white"
+                        currentProt -> "c-blue"
+                        else -> "c-green"
+                    }
+                    val escChar = when (ch) {
+                        '<' -> "&lt;"
+                        '>' -> "&gt;"
+                        '&' -> "&amp;"
+                        '"' -> "&quot;"
+                        else -> if (ch in ' '..'~' || ch > '\u007F') ch.toString() else " "
+                    }
+                    sb.append("<span class=\"$colorClass\">$escChar</span>")
+                }
+            }
+        }
+        sb.append("\n")
+    }
+
+    sb.append("</pre>\n</body>\n</html>")
+    return sb.toString()
+}
+
+private fun generateBitmap(
+    screenBuffer: ScreenBuffer?,
+    rows: Int,
+    cols: Int,
+    programSymbolManager: ProgramSymbolManager?,
+    graphicsPlane: GraphicsPlane?,
+    maskHidden: Boolean
+): Bitmap {
+    val charWidth = 14
+    val charHeight = 24
+    val width = cols * charWidth
+    val height = rows * charHeight
+
+    val bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888)
+    val canvas = Canvas(bitmap)
+
+    // Fill background
+    val bgPaint = Paint().apply {
+        color = android.graphics.Color.parseColor("#0A0A0A")
+        style = Paint.Style.FILL
+    }
+    canvas.drawRect(0f, 0f, width.toFloat(), height.toFloat(), bgPaint)
+
+    if (screenBuffer == null) return bitmap
+
+    val textPaint = Paint().apply {
+        isAntiAlias = true
+        typeface = Typeface.MONOSPACE
+        textSize = 18f
+    }
+
+    var currentHidden = false
+    var currentProt = false
+    var currentHi = false
+
+    for (r in 0 until rows) {
+        for (c in 0 until cols) {
+            val addr = r * cols + c
+            val cell = screenBuffer.getCell(addr)
+            val left = (c * charWidth).toFloat()
+            val top = (r * charHeight).toFloat()
+
+            if (cell.fa.toInt() != 0) {
+                val faVal = cell.fa.toInt() and 0xFF
+                currentProt = (faVal and FA_PROTECT) != 0
+                currentHi = (faVal and FA_INT_HIGH_SEL) == FA_INT_HIGH_SEL
+                currentHidden = (faVal and FA_INT_HIGH_SEL) == 0
+            } else {
+                val csVal = cell.cs.toInt() and 0xFF
+                val ecVal = cell.ec.toInt() and 0xFF
+                var drawnAsPs = false
+                if (csVal >= 0x40 && programSymbolManager != null) {
+                    val slot = programSymbolManager.getSymbol(csVal, ecVal)
+                    if (slot != null) {
+                        val symWidth = slot.width
+                        val symHeight = slot.height
+                        val fgArgb = when {
+                            currentHi -> android.graphics.Color.WHITE
+                            currentProt -> android.graphics.Color.parseColor("#3399FF")
+                            else -> android.graphics.Color.parseColor("#00FF66")
+                        }
+                        val bgArgb = android.graphics.Color.parseColor("#0A0A0A")
+                        val rgbArray = slot.getRgbPixels(fgArgb, bgArgb)
+                        if (rgbArray != null && symWidth > 0 && symHeight > 0) {
+                            val symBmp = Bitmap.createBitmap(rgbArray, symWidth, symHeight, Bitmap.Config.ARGB_8888)
+                            canvas.drawBitmap(symBmp, null, android.graphics.RectF(left, top, left + charWidth, top + charHeight), null)
+                            drawnAsPs = true
+                        }
+                    }
+                }
+
+                if (!drawnAsPs && (!currentHidden || !maskHidden)) {
+                    val ch = cell.ucs4
+                    if (ch in ' '..'~' || ch > '\u007F') {
+                        textPaint.color = when {
+                            currentHi -> android.graphics.Color.WHITE
+                            currentProt -> android.graphics.Color.parseColor("#3399FF")
+                            else -> android.graphics.Color.parseColor("#00FF66")
+                        }
+                        canvas.drawText(ch.toString(), left + 2f, top + 18f, textPaint)
+                    }
+                }
+            }
+        }
+    }
+
+    // Overlay vector graphics plane if present
+    if (graphicsPlane != null && graphicsPlane.hasContent()) {
+        val rgb = graphicsPlane.rgbBuffer
+        val gWidth = graphicsPlane.canvasWidth
+        val gHeight = graphicsPlane.canvasHeight
+        if (rgb != null && gWidth > 0 && gHeight > 0) {
+            val gfxBmp = Bitmap.createBitmap(rgb, gWidth, gHeight, Bitmap.Config.ARGB_8888)
+            val scaledGfx = Bitmap.createScaledBitmap(gfxBmp, width, height, true)
+            canvas.drawBitmap(scaledGfx, 0f, 0f, null)
+        }
+    }
+
+    return bitmap
+}

src/main/java/haus/nightmare/a3270/ui/ScriptDialog.kt

@@ -0,0 +1,211 @@
+package haus.nightmare.a3270.ui
+
+import androidx.compose.foundation.horizontalScroll
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.KeyboardCapitalization
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.compose.ui.window.Dialog
+import androidx.compose.ui.window.DialogProperties
+
+@Composable
+fun ScriptDialog(
+    initialScript: String = "",
+    onDismiss: () -> Unit,
+    onExecuteScript: (script: String, onStatus: (String) -> Unit, onComplete: (String?) -> Unit) -> Unit
+) {
+    var scriptText by remember { mutableStateOf(initialScript.ifBlank { "# Sample 3270 Script\nLOGON APPLID(TSO)[enter]\n[wait]\nUSERID[tab]PASSWORD[enter]" }) }
+    var isExecuting by remember { mutableStateOf(false) }
+    var executionStatus by remember { mutableStateOf("") }
+    var executionError by remember { mutableStateOf<String?>(null) }
+
+    fun insertToken(token: String) {
+        scriptText += token
+    }
+
+    Dialog(
+        onDismissRequest = { if (!isExecuting) onDismiss() },
+        properties = DialogProperties(usePlatformDefaultWidth = false)
+    ) {
+        Card(
+            shape = RoundedCornerShape(16.dp),
+            colors = CardDefaults.cardColors(containerColor = Color(0xFF1E1E1E)),
+            modifier = Modifier
+                .fillMaxWidth(0.95f)
+                .heightIn(max = 680.dp)
+                .padding(vertical = 16.dp)
+        ) {
+            Column(
+                modifier = Modifier
+                    .fillMaxSize()
+                    .padding(16.dp),
+                verticalArrangement = Arrangement.spacedBy(10.dp)
+            ) {
+                // Header
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    Text(
+                        "Run Keystroke Script / Macro",
+                        fontWeight = FontWeight.Bold,
+                        fontSize = 16.sp,
+                        color = Color.White
+                    )
+                    Text(
+                        "ECL Mnemonic Tokens",
+                        fontSize = 11.sp,
+                        color = Color.Gray
+                    )
+                }
+
+                HorizontalDivider(color = Color(0xFF2C2D30))
+
+                // Mnemonic Quick Insert Chips Row 1
+                Text("Insert Mnemonic Keys:", fontSize = 11.sp, color = Color.LightGray)
+                val tokenScroll1 = rememberScrollState()
+                Row(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .horizontalScroll(tokenScroll1),
+                    horizontalArrangement = Arrangement.spacedBy(4.dp)
+                ) {
+                    listOf(
+                        "[enter]", "[tab]", "[backtab]", "[home]", "[clear]",
+                        "[reset]", "[eraseeof]", "[eraseinpt]", "[attn]", "[sysreq]",
+                        "[wordleft]", "[wordright]", "[fieldend]", "[deleteword]", "[cursel]", "[lightpen]"
+                    ).forEach { tok ->
+                        SuggestionChip(
+                            onClick = { insertToken(tok) },
+                            label = { Text(tok, fontSize = 10.sp, fontFamily = FontFamily.Monospace) }
+                        )
+                    }
+                }
+
+                // Mnemonic Quick Insert Chips Row 2 (PF Keys)
+                val tokenScroll2 = rememberScrollState()
+                Row(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .horizontalScroll(tokenScroll2),
+                    horizontalArrangement = Arrangement.spacedBy(4.dp)
+                ) {
+                    (1..24).forEach { pf ->
+                        val tok = "[pf$pf]"
+                        SuggestionChip(
+                            onClick = { insertToken(tok) },
+                            label = { Text("PF$pf", fontSize = 10.sp, fontFamily = FontFamily.Monospace) }
+                        )
+                    }
+                }
+
+                // Script Editor Box
+                OutlinedTextField(
+                    value = scriptText,
+                    onValueChange = { scriptText = it },
+                    label = { Text("Script Text / Mnemonic Commands") },
+                    placeholder = { Text("Type characters or tokens like [enter], [pf3], etc.") },
+                    keyboardOptions = KeyboardOptions(
+                        capitalization = KeyboardCapitalization.None,
+                        autoCorrect = false,
+                        keyboardType = KeyboardType.Ascii
+                    ),
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .weight(1f),
+                    textStyle = LocalTextStyle.current.copy(fontFamily = FontFamily.Monospace, fontSize = 12.sp)
+                )
+
+                // Status or Error
+                if (isExecuting) {
+                    Row(
+                        verticalAlignment = Alignment.CenterVertically,
+                        horizontalArrangement = Arrangement.spacedBy(8.dp),
+                        modifier = Modifier.fillMaxWidth()
+                    ) {
+                        CircularProgressIndicator(modifier = Modifier.size(16.dp), strokeWidth = 2.dp)
+                        Text(
+                            text = executionStatus.ifBlank { "Executing script..." },
+                            fontSize = 12.sp,
+                            color = Color(0xFF339AF0)
+                        )
+                    }
+                } else if (executionError != null) {
+                    Text(
+                        text = "Error: $executionError",
+                        fontSize = 12.sp,
+                        color = Color(0xFFFF6B6B)
+                    )
+                } else if (executionStatus.isNotBlank()) {
+                    Text(
+                        text = executionStatus,
+                        fontSize = 12.sp,
+                        color = Color(0xFF51CF66)
+                    )
+                }
+
+                // Bottom Action Buttons
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    TextButton(
+                        onClick = onDismiss,
+                        enabled = !isExecuting
+                    ) {
+                        Text("Close", color = Color.LightGray)
+                    }
+
+                    Row(horizontalArrangement = Arrangement.spacedBy(6.dp)) {
+                        OutlinedButton(
+                            onClick = { scriptText = "" },
+                            enabled = !isExecuting
+                        ) {
+                            Text("Clear")
+                        }
+
+                        Button(
+                            onClick = {
+                                if (scriptText.isNotBlank()) {
+                                    isExecuting = true
+                                    executionError = null
+                                    executionStatus = "Starting..."
+                                    onExecuteScript(
+                                        scriptText,
+                                        { status -> executionStatus = status },
+                                        { error ->
+                                            isExecuting = false
+                                            if (error != null) {
+                                                executionError = error
+                                            } else {
+                                                executionStatus = "Script completed successfully."
+                                            }
+                                        }
+                                    )
+                                }
+                            },
+                            enabled = !isExecuting && scriptText.isNotBlank(),
+                            colors = ButtonDefaults.buttonColors(containerColor = Color(0xFF2B8A3E))
+                        ) {
+                            Text("Execute Script ▶")
+                        }
+                    }
+                }
+            }
+        }
+    }
+}

src/main/java/haus/nightmare/a3270/ui/SettingsDialog.kt

@@ -0,0 +1,346 @@
+package haus.nightmare.a3270.ui
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.compose.ui.window.Dialog
+
+import androidx.compose.ui.window.DialogProperties
+
+@Composable
+fun SettingsDialog(
+    initialMaskHiddenInput: Boolean,
+    initialCursorBlink: Boolean,
+    initialHapticFeedback: Boolean = true,
+    initialVerifyCerts: Boolean = true,
+    initialDefaultGraphicsMode: String = "BOTH",
+    initialDefaultCodePage: String = "037",
+    onDismiss: () -> Unit,
+    onSave: (maskHiddenInput: Boolean, cursorBlink: Boolean, hapticFeedback: Boolean, verifyCerts: Boolean, defaultGraphicsMode: String, defaultCodePage: String) -> Unit
+) {
+    var maskHiddenInput by remember { mutableStateOf(initialMaskHiddenInput) }
+    var cursorBlink by remember { mutableStateOf(initialCursorBlink) }
+    var hapticFeedback by remember { mutableStateOf(initialHapticFeedback) }
+    var verifyCerts by remember { mutableStateOf(initialVerifyCerts) }
+    var defaultGraphicsMode by remember { mutableStateOf(initialDefaultGraphicsMode) }
+    var defaultCodePage by remember { mutableStateOf(initialDefaultCodePage) }
+
+    Dialog(
+        onDismissRequest = onDismiss,
+        properties = DialogProperties(usePlatformDefaultWidth = false)
+    ) {
+        Card(
+            shape = RoundedCornerShape(16.dp),
+            colors = CardDefaults.cardColors(containerColor = Color(0xFF1E1E1E)),
+            modifier = Modifier
+                .fillMaxWidth(0.95f)
+                .heightIn(max = 680.dp)
+                .padding(vertical = 16.dp)
+        ) {
+            Column(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .verticalScroll(rememberScrollState())
+                    .padding(20.dp)
+            ) {
+                Text(
+                    text = "Terminal Settings",
+                    fontSize = 18.sp,
+                    fontWeight = FontWeight.Bold,
+                    color = Color.White
+                )
+
+                Spacer(modifier = Modifier.height(16.dp))
+
+                // Setting 1: Mask Protected/Hidden Input with '*'
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.SpaceBetween
+                ) {
+                    Column(modifier = Modifier.weight(1f).padding(end = 12.dp)) {
+                        Text(
+                            text = "Show '*' for Hidden Fields",
+                            fontSize = 14.sp,
+                            fontWeight = FontWeight.SemiBold,
+                            color = Color.White
+                        )
+                        Text(
+                            text = "Display asterisks for typed characters in non-display / password fields rather than blank spaces.",
+                            fontSize = 12.sp,
+                            color = Color.LightGray
+                        )
+                    }
+                    Switch(
+                        checked = maskHiddenInput,
+                        onCheckedChange = { maskHiddenInput = it },
+                        colors = SwitchDefaults.colors(
+                            checkedThumbColor = Color.White,
+                            checkedTrackColor = Color(0xFF2B8A3E)
+                        )
+                    )
+                }
+
+                Spacer(modifier = Modifier.height(16.dp))
+                HorizontalDivider(color = Color(0xFF2C2D30))
+                Spacer(modifier = Modifier.height(16.dp))
+
+                // Setting 2: Blinking Cursor
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.SpaceBetween
+                ) {
+                    Column(modifier = Modifier.weight(1f).padding(end = 12.dp)) {
+                        Text(
+                            text = "Blinking Cursor",
+                            fontSize = 14.sp,
+                            fontWeight = FontWeight.SemiBold,
+                            color = Color.White
+                        )
+                        Text(
+                            text = "Blink the terminal cursor to clearly indicate current screen position.",
+                            fontSize = 12.sp,
+                            color = Color.LightGray
+                        )
+                    }
+                    Switch(
+                        checked = cursorBlink,
+                        onCheckedChange = { cursorBlink = it },
+                        colors = SwitchDefaults.colors(
+                            checkedThumbColor = Color.White,
+                            checkedTrackColor = Color(0xFF2B8A3E)
+                        )
+                    )
+                }
+
+                Spacer(modifier = Modifier.height(16.dp))
+                HorizontalDivider(color = Color(0xFF2C2D30))
+                Spacer(modifier = Modifier.height(16.dp))
+
+                // Setting 3: Button Haptic Feedback
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.SpaceBetween
+                ) {
+                    Column(modifier = Modifier.weight(1f).padding(end = 12.dp)) {
+                        Text(
+                            text = "Button Haptic Feedback",
+                            fontSize = 14.sp,
+                            fontWeight = FontWeight.SemiBold,
+                            color = Color.White
+                        )
+                        Text(
+                            text = "Vibrate softly when tapping function and navigation buttons to match keyboard tactile feedback.",
+                            fontSize = 12.sp,
+                            color = Color.LightGray
+                        )
+                    }
+                    Switch(
+                        checked = hapticFeedback,
+                        onCheckedChange = { hapticFeedback = it },
+                        colors = SwitchDefaults.colors(
+                            checkedThumbColor = Color.White,
+                            checkedTrackColor = Color(0xFF2B8A3E)
+                        )
+                    )
+                }
+
+                Spacer(modifier = Modifier.height(16.dp))
+                HorizontalDivider(color = Color(0xFF2C2D30))
+                Spacer(modifier = Modifier.height(16.dp))
+
+                // Setting 4: Overall TLS Certificate Verification
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.SpaceBetween
+                ) {
+                    Column(modifier = Modifier.weight(1f).padding(end = 12.dp)) {
+                        Text(
+                            text = "Verify TLS Certificates",
+                            fontSize = 14.sp,
+                            fontWeight = FontWeight.SemiBold,
+                            color = Color.White
+                        )
+                        Text(
+                            text = "Enforce SSL/TLS certificate validation. Turn off to allow self-signed or unverified certificates without security prompts.",
+                            fontSize = 12.sp,
+                            color = Color.LightGray
+                        )
+                    }
+                    Switch(
+                        checked = verifyCerts,
+                        onCheckedChange = { verifyCerts = it },
+                        colors = SwitchDefaults.colors(
+                            checkedThumbColor = Color.White,
+                            checkedTrackColor = Color(0xFF2B8A3E)
+                        )
+                    )
+                }
+
+                Spacer(modifier = Modifier.height(16.dp))
+                HorizontalDivider(color = Color(0xFF2C2D30))
+                Spacer(modifier = Modifier.height(16.dp))
+
+                // Setting 5: Default Graphics Support Mode
+                Column(modifier = Modifier.fillMaxWidth()) {
+                    Text(
+                        text = "Default Graphics Mode",
+                        fontSize = 14.sp,
+                        fontWeight = FontWeight.SemiBold,
+                        color = Color.White
+                    )
+                    Text(
+                        text = "Configure default vector graphics (GOCA) and Programmed Symbols (APL) mode.",
+                        fontSize = 12.sp,
+                        color = Color.LightGray
+                    )
+                    Spacer(modifier = Modifier.height(8.dp))
+                    Row(
+                        modifier = Modifier.fillMaxWidth(),
+                        horizontalArrangement = Arrangement.spacedBy(6.dp)
+                    ) {
+                        listOf(
+                            "BOTH" to "Both",
+                            "VECTOR_GRAPHICS" to "Vector",
+                            "PROGRAMMED_SYMBOLS" to "Symbols",
+                            "NONE" to "Off"
+                        ).forEach { (modeKey, modeLabel) ->
+                            val isSelected = defaultGraphicsMode.equals(modeKey, ignoreCase = true)
+                            Surface(
+                                shape = RoundedCornerShape(6.dp),
+                                color = if (isSelected) Color(0xFF2B8A3E) else Color(0xFF2C2D30),
+                                modifier = Modifier
+                                    .weight(1f)
+                                    .height(34.dp)
+                                    .clickable { defaultGraphicsMode = modeKey }
+                            ) {
+                                Box(
+                                    contentAlignment = Alignment.Center,
+                                    modifier = Modifier.fillMaxSize().padding(horizontal = 2.dp)
+                                ) {
+                                    Text(
+                                        text = modeLabel,
+                                        color = Color.White,
+                                        fontSize = 11.sp,
+                                        fontWeight = if (isSelected) FontWeight.Bold else FontWeight.Normal,
+                                        textAlign = androidx.compose.ui.text.style.TextAlign.Center
+                                    )
+                                }
+                            }
+                        }
+                    }
+                }
+
+                Spacer(modifier = Modifier.height(16.dp))
+                HorizontalDivider(color = Color(0xFF2C2D30))
+                Spacer(modifier = Modifier.height(16.dp))
+
+                // Setting 6: Default EBCDIC Code Page
+                var codePageMenuExpanded by remember { mutableStateOf(false) }
+                val codePagesList = haus.nightmare.a3270.storage.HostStorage.AVAILABLE_CODE_PAGES
+                val selectedCpLabel = codePagesList.firstOrNull { it.first == defaultCodePage }?.second ?: "Code Page $defaultCodePage"
+
+                Column(modifier = Modifier.fillMaxWidth()) {
+                    Text(
+                        text = "Default EBCDIC Code Page",
+                        fontSize = 14.sp,
+                        fontWeight = FontWeight.SemiBold,
+                        color = Color.White
+                    )
+                    Text(
+                        text = "Character encoding translation table for new sessions.",
+                        fontSize = 12.sp,
+                        color = Color.LightGray
+                    )
+                    Spacer(modifier = Modifier.height(8.dp))
+                    Box(modifier = Modifier.fillMaxWidth()) {
+                        Surface(
+                            shape = RoundedCornerShape(6.dp),
+                            color = Color(0xFF2C2D30),
+                            border = androidx.compose.foundation.BorderStroke(1.dp, Color(0xFF495057)),
+                            modifier = Modifier
+                                .fillMaxWidth()
+                                .height(38.dp)
+                                .clickable { codePageMenuExpanded = true }
+                        ) {
+                            Row(
+                                modifier = Modifier
+                                    .fillMaxSize()
+                                    .padding(horizontal = 10.dp),
+                                horizontalArrangement = Arrangement.SpaceBetween,
+                                verticalAlignment = Alignment.CenterVertically
+                            ) {
+                                Text(
+                                    text = selectedCpLabel,
+                                    color = Color.White,
+                                    fontSize = 12.sp,
+                                    fontWeight = FontWeight.Medium
+                                )
+                                Text("▼", color = Color.Gray, fontSize = 10.sp)
+                            }
+                        }
+                        DropdownMenu(
+                            expanded = codePageMenuExpanded,
+                            onDismissRequest = { codePageMenuExpanded = false },
+                            modifier = Modifier
+                                .background(Color(0xFF2C2D30))
+                                .heightIn(max = 280.dp)
+                        ) {
+                            codePagesList.forEach { (cpId, label) ->
+                                DropdownMenuItem(
+                                    text = {
+                                        Text(
+                                            text = label,
+                                            fontSize = 12.sp,
+                                            color = if (defaultCodePage == cpId) Color(0xFF339AF0) else Color.White,
+                                            fontWeight = if (defaultCodePage == cpId) FontWeight.Bold else FontWeight.Normal
+                                        )
+                                    },
+                                    onClick = {
+                                        defaultCodePage = cpId
+                                        codePageMenuExpanded = false
+                                    }
+                                )
+                            }
+                        }
+                    }
+                }
+
+                Spacer(modifier = Modifier.height(24.dp))
+
+                // Action Buttons
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.End
+                ) {
+                    TextButton(onClick = onDismiss) {
+                        Text("Cancel", color = Color.LightGray)
+                    }
+                    Spacer(modifier = Modifier.width(8.dp))
+                    Button(
+                        onClick = {
+                            onSave(maskHiddenInput, cursorBlink, hapticFeedback, verifyCerts, defaultGraphicsMode, defaultCodePage)
+                        },
+                        colors = ButtonDefaults.buttonColors(containerColor = Color(0xFF2B8A3E))
+                    ) {
+                        Text("Save", color = Color.White)
+                    }
+                }
+            }
+        }
+    }
+}

src/main/java/haus/nightmare/a3270/ui/TerminalInputView.kt

@@ -0,0 +1,114 @@
+package haus.nightmare.a3270.ui
+
+import android.content.Context
+import android.text.InputType
+import android.view.KeyEvent
+import android.view.View
+import android.view.inputmethod.BaseInputConnection
+import android.view.inputmethod.EditorInfo
+import android.view.inputmethod.InputConnection
+import android.view.inputmethod.InputMethodManager
+import haus.nightmare.lib3270j.protocol.DS3270Constants.AID_ENTER
+
+/**
+ * Custom InputConnection for Termux-style terminal keyboard interaction.
+ *
+ * It avoids the destructive TextFieldValue("") resetting cycle which causes Android IME
+ * (Gboard/Samsung Keyboard) to reset symbol locks, cancel Caps Lock, and drop fast keystrokes.
+ */
+class TerminalInputConnection(
+    targetView: View,
+    private val onInputText: (String) -> Unit,
+    private val onSendAid: (Int) -> Unit,
+    private val onBackspace: () -> Unit,
+    private val onTab: () -> Unit,
+    private val onBackTab: () -> Unit
+) : BaseInputConnection(targetView, false) {
+
+    override fun commitText(text: CharSequence?, newCursorPosition: Int): Boolean {
+        if (!text.isNullOrEmpty()) {
+            onInputText(text.toString())
+        }
+        return true
+    }
+
+    override fun deleteSurroundingText(beforeLength: Int, afterLength: Int): Boolean {
+        if (beforeLength > 0) {
+            repeat(beforeLength) { onBackspace() }
+            return true
+        }
+        return super.deleteSurroundingText(beforeLength, afterLength)
+    }
+
+    override fun deleteSurroundingTextInCodePoints(beforeLength: Int, afterLength: Int): Boolean {
+        if (beforeLength > 0) {
+            repeat(beforeLength) { onBackspace() }
+            return true
+        }
+        return super.deleteSurroundingTextInCodePoints(beforeLength, afterLength)
+    }
+
+    override fun sendKeyEvent(event: KeyEvent): Boolean {
+        if (event.action == KeyEvent.ACTION_DOWN) {
+            when (event.keyCode) {
+                KeyEvent.KEYCODE_ENTER, KeyEvent.KEYCODE_NUMPAD_ENTER -> {
+                    onSendAid(AID_ENTER)
+                    return true
+                }
+                KeyEvent.KEYCODE_DEL -> {
+                    onBackspace()
+                    return true
+                }
+                KeyEvent.KEYCODE_TAB -> {
+                    if (event.isShiftPressed) onBackTab() else onTab()
+                    return true
+                }
+            }
+            val unicode = event.keyCharacterMap.get(event.keyCode, event.metaState)
+            if (unicode > 0) {
+                onInputText(unicode.toChar().toString())
+                return true
+            }
+        }
+        return super.sendKeyEvent(event)
+    }
+}
+
+/**
+ * Native Android View hosting the terminal InputConnection with Termux-style EditorInfo.
+ *
+ * TYPE_TEXT_VARIATION_VISIBLE_PASSWORD + TYPE_CLASS_TEXT forces keyboards like Gboard
+ * to permanently display the alphanumeric number row across the top, disable intrusive
+ * autocorrect overlays, and preserve Shift/Caps Lock and Symbol mode (?123) state across typing.
+ */
+class TerminalInputView(context: Context) : View(context) {
+
+    var onInputText: (String) -> Unit = {}
+    var onSendAid: (Int) -> Unit = {}
+    var onBackspace: () -> Unit = {}
+    var onTab: () -> Unit = {}
+    var onBackTab: () -> Unit = {}
+
+    init {
+        isFocusable = true
+        isFocusableInTouchMode = true
+    }
+
+    override fun onCheckIsTextEditor(): Boolean = true
+
+    override fun onCreateInputConnection(outAttrs: EditorInfo): InputConnection {
+        outAttrs.inputType = InputType.TYPE_CLASS_TEXT or
+                InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD or
+                InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS
+        outAttrs.imeOptions = EditorInfo.IME_FLAG_NO_FULLSCREEN or
+                EditorInfo.IME_FLAG_NO_EXTRACT_UI or
+                EditorInfo.IME_ACTION_NONE
+        return TerminalInputConnection(this, onInputText, onSendAid, onBackspace, onTab, onBackTab)
+    }
+
+    fun showSoftKeyboard() {
+        requestFocus()
+        val imm = context.getSystemService(Context.INPUT_METHOD_SERVICE) as? InputMethodManager
+        imm?.showSoftInput(this, InputMethodManager.SHOW_IMPLICIT)
+    }
+}

src/main/java/haus/nightmare/a3270/ui/TerminalView.kt

@@ -1,4 +1,4 @@
-package org.pubvm.a3270.ui
+package haus.nightmare.a3270.ui
 
 import android.graphics.Paint
 import android.graphics.Typeface
@@ -25,9 +25,9 @@ import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.unit.DpOffset
 import androidx.compose.ui.unit.dp
 import kotlinx.coroutines.delay
-import org.lib3270j.protocol.DS3270Constants.*
-import org.lib3270j.screen.ExtendedAttribute
-import org.lib3270j.screen.ScreenBuffer
+import haus.nightmare.lib3270j.protocol.DS3270Constants.*
+import haus.nightmare.lib3270j.screen.ExtendedAttribute
+import haus.nightmare.lib3270j.screen.ScreenBuffer
 
 // Standard 3279 Host Colors (16-color palette)
 private val HOST_COLORS = arrayOf(
@@ -58,9 +58,17 @@ fun TerminalView(
     cols: Int,
     cursorAddr: Int,
     screenVersion: Long,
+    programSymbolManager: haus.nightmare.lib3270j.graphics.ProgramSymbolManager? = null,
+    graphicsPlane: haus.nightmare.lib3270j.graphics.GraphicsPlane? = null,
+    gocaDecoder: haus.nightmare.lib3270j.graphics.GocaDecoder? = null,
+    isLightPenMode: Boolean = false,
     maskHiddenFields: Boolean = true,
     blinkCursor: Boolean = true,
+    searchHighlightAddr: Int = -1,
+    searchHighlightLen: Int = 0,
     onTapAddress: (Int) -> Unit,
+    onLightPenSelect: ((Int) -> Unit)? = null,
+    onGraphicTouch: ((Int, Int, Int) -> Unit)? = null,
     onPasteText: (String) -> Unit = {},
     modifier: Modifier = Modifier
 ) {
@@ -68,6 +76,9 @@ fun TerminalView(
     val clipboardManager = LocalClipboardManager.current
     val density = LocalDensity.current
 
+    val currentScreenVersion by rememberUpdatedState(screenVersion)
+    val currentCursorAddr by rememberUpdatedState(cursorAddr)
+
     var selectionStart by remember { mutableStateOf<Offset?>(null) }
     var selectionEnd by remember { mutableStateOf<Offset?>(null) }
     var showContextMenu by remember { mutableStateOf(false) }
@@ -92,7 +103,7 @@ fun TerminalView(
             modifier = Modifier
                 .fillMaxSize()
                 .background(COLOR_BLACK)
-                .pointerInput(cols, rows) {
+                .pointerInput(cols, rows, isLightPenMode, gocaDecoder) {
                     awaitPointerEventScope {
                         while (true) {
                             val down = awaitFirstDown(requireUnconsumed = false)
@@ -101,6 +112,7 @@ fun TerminalView(
                             var currentPos = startPos
                             var isDragStarted = false
                             val slop = viewConfiguration.touchSlop
+                            val isGraphicCursor = gocaDecoder != null && gocaDecoder.isGraphicsCursorActive
 
                             while (true) {
                                 val event = awaitPointerEvent()
@@ -111,7 +123,7 @@ fun TerminalView(
                                 currentPos = change.position
                                 val distance = (currentPos - startPos).getDistance()
 
-                                if (distance > slop) {
+                                if (distance > slop && !isLightPenMode && !isGraphicCursor) {
                                     if (!isDragStarted) {
                                         isDragStarted = true
                                         selectionStart = startPos
@@ -128,47 +140,73 @@ fun TerminalView(
                             if (isDragStarted) {
                                 // Drag completed: Keep selection box highlighted, DO NOT open context menu
                                 showContextMenu = false
-                            } else if (duration >= 600L && totalDistance <= slop) {
-                                // Stationary Long Press (held >= 600ms without dragging)
+                            } else if (duration >= 600L && totalDistance <= slop && !isLightPenMode && !isGraphicCursor) {
+                                // Stationary Long Press (held >= 600ms without dragging) - only in normal alphanumeric mode
                                 contextMenuOffset = startPos
                                 showContextMenu = true
                             } else if (totalDistance <= slop) {
-                                // Short Tap (Move Cursor)
+                                // Short Tap
                                 showContextMenu = false
                                 selectionStart = null
                                 selectionEnd = null
-                                val cellWidth = size.width / cols
-                                val cellHeight = size.height / rows
-                                if (cellWidth > 0 && cellHeight > 0) {
-                                    val col = (startPos.x / cellWidth).toInt().coerceIn(0, cols - 1)
-                                    val row = (startPos.y / cellHeight).toInt().coerceIn(0, rows - 1)
-                                    var addr = row * cols + col
+                                val metrics = calculateGridMetrics(size.width.toFloat(), size.height.toFloat(), cols, rows)
+                                if (metrics.cellWidth > 0 && metrics.cellHeight > 0) {
+                                    val col = ((startPos.x - metrics.offsetX) / metrics.cellWidth).toInt().coerceIn(0, cols - 1)
+                                    val row = ((startPos.y - metrics.offsetY) / metrics.cellHeight).toInt().coerceIn(0, rows - 1)
+                                    val clickAddr = row * cols + col
 
-                                    val buf = screenBuffer
-                                    if (buf != null && buf.isFormatted) {
-                                        val faVal = buf.getFieldAttributeAt(addr)
-                                        if (faIsProtected(faVal.toInt() and 0xFF) || buf.getCell(addr).isFieldAttribute) {
-                                            addr = buf.findNextUnprotected(addr)
+                                    if (isGraphicCursor) {
+                                        val gridW = metrics.gridWidth
+                                        val gridH = metrics.gridHeight
+                                        val gWidth = graphicsPlane?.canvasWidth ?: gridW.toInt()
+                                        val gHeight = graphicsPlane?.canvasHeight ?: gridH.toInt()
+                                        val px = if (gridW > 0 && gWidth > 0) (((startPos.x - metrics.offsetX) * gWidth) / gridW).toInt().coerceIn(0, gWidth - 1) else (startPos.x - metrics.offsetX).toInt()
+                                        val py = if (gridH > 0 && gHeight > 0) (((startPos.y - metrics.offsetY) * gHeight) / gridH).toInt().coerceIn(0, gHeight - 1) else (startPos.y - metrics.offsetY).toInt()
+                                        screenBuffer?.cursorAddress = clickAddr
+                                        onGraphicTouch?.invoke(clickAddr, px, py)
+                                    } else if (isLightPenMode) {
+                                        onLightPenSelect?.invoke(clickAddr)
+                                    } else {
+                                        var addr = clickAddr
+                                        val buf = screenBuffer
+                                        if (buf != null && buf.isFormatted) {
+                                            val faVal = buf.getFieldAttributeAt(addr)
+                                            if (faIsProtected(faVal.toInt() and 0xFF) || buf.getCell(addr).isFieldAttribute) {
+                                                addr = buf.findNextUnprotected(addr)
+                                            }
                                         }
+                                        onTapAddress(addr)
                                     }
-                                    onTapAddress(addr)
                                 }
                             }
                         }
                     }
                 }
         ) {
-            val width = size.width
-            val height = size.height
-            val cellWidth = width / cols
-            val cellHeight = height / rows
+            val version = currentScreenVersion
+            val activeCursorAddr = currentCursorAddr
+            if (version == -1L) return@Canvas
 
-            if (cellWidth <= 0 || cellHeight <= 0) return@Canvas
+            val metrics = calculateGridMetrics(size.width, size.height, cols, rows)
+            if (metrics.cellWidth <= 0f || metrics.cellHeight <= 0f) return@Canvas
+
+            val cellWidth = metrics.cellWidth
+            val cellHeight = metrics.cellHeight
+            val offsetX = metrics.offsetX
+            val offsetY = metrics.offsetY
 
             val paint = Paint().apply {
                 isAntiAlias = true
                 typeface = Typeface.MONOSPACE
-                textSize = cellHeight * 0.85f
+                textAlign = Paint.Align.CENTER
+            }
+
+            // Calculate optimal font size ensuring characters fit cleanly in cell without crowding
+            val baseTextSize = cellHeight * 0.78f
+            paint.textSize = baseTextSize
+            val measuredW = paint.measureText("W")
+            if (measuredW > cellWidth * 0.85f && measuredW > 0f) {
+                paint.textSize = baseTextSize * (cellWidth * 0.85f / measuredW)
             }
 
             val buf = screenBuffer
@@ -185,11 +223,11 @@ fun TerminalView(
 
             val start = selectionStart
             val end = selectionEnd
-            if (start != null && end != null) {
-                val startCol = (start.x / cellWidth).toInt().coerceIn(0, cols - 1)
-                val startRow = (start.y / cellHeight).toInt().coerceIn(0, rows - 1)
-                val endCol = (end.x / cellWidth).toInt().coerceIn(0, cols - 1)
-                val endRow = (end.y / cellHeight).toInt().coerceIn(0, rows - 1)
+            if (start != null && end != null && cellWidth > 0f && cellHeight > 0f) {
+                val startCol = ((start.x - offsetX) / cellWidth).toInt().coerceIn(0, cols - 1)
+                val startRow = ((start.y - offsetY) / cellHeight).toInt().coerceIn(0, rows - 1)
+                val endCol = ((end.x - offsetX) / cellWidth).toInt().coerceIn(0, cols - 1)
+                val endRow = ((end.y - offsetY) / cellHeight).toInt().coerceIn(0, rows - 1)
 
                 selMinRow = minOf(startRow, endRow)
                 selMaxRow = maxOf(startRow, endRow)
@@ -202,8 +240,8 @@ fun TerminalView(
                     val addr = r * cols + c
                     if (addr >= totalCells) break
 
-                    val left = c * cellWidth
-                    val top = r * cellHeight
+                    val left = offsetX + c * cellWidth
+                    val top = offsetY + r * cellHeight
 
                     var charVal = ' '
                     var fgColor: Color
@@ -211,6 +249,8 @@ fun TerminalView(
                     var isBold = false
                     var isUnderline = false
                     var isReverse = false
+                    var csVal = 0
+                    var ecVal = 0
 
                     if (buf != null) {
                         val ea = buf.getCell(addr)
@@ -225,6 +265,10 @@ fun TerminalView(
                         fgColor = getFgColorForAttribute(ea, currentFieldEa, currentFA)
                         bgColor = getBgColorForAttribute(ea, currentFieldEa)
 
+                        csVal = if (ea.cs != 0.toByte()) (ea.cs.toInt() and 0xFF)
+                                else (currentFieldEa?.cs?.toInt()?.and(0xFF) ?: 0)
+                        ecVal = ea.ec.toInt() and 0xFF
+
                         // Intensity
                         if (faIsHigh(currentFA.toInt() and 0xFF)) {
                             isBold = true
@@ -271,9 +315,18 @@ fun TerminalView(
                         )
                     }
 
-                    // Highlight selected block range
+                    // Draw selection box highlight if selected
                     val isSelected = r in selMinRow..selMaxRow && c in selMinCol..selMaxCol
-                    if (isSelected) {
+                    val isSearchHighlighted = searchHighlightAddr >= 0 && searchHighlightLen > 0 &&
+                            addr >= searchHighlightAddr && addr < (searchHighlightAddr + searchHighlightLen)
+
+                    if (isSearchHighlighted) {
+                        drawRect(
+                            color = Color(0x99FFC107), // Amber / Gold highlight for search matches
+                            topLeft = Offset(left, top),
+                            size = Size(cellWidth, cellHeight)
+                        )
+                    } else if (isSelected) {
                         drawRect(
                             color = Color(0x773399FF),
                             topLeft = Offset(left, top),
@@ -282,7 +335,7 @@ fun TerminalView(
                     }
 
                     // Cursor indicator (respects blinking toggle & timer)
-                    if (addr == cursorAddr && !isSelected && cursorVisible) {
+                    if (addr == activeCursorAddr && !isSelected && cursorVisible) {
                         drawRect(
                             color = HOST_COLORS[HOST_COLOR_TURQUOISE].copy(alpha = 0.5f),
                             topLeft = Offset(left, top),
@@ -290,15 +343,37 @@ fun TerminalView(
                         )
                     }
 
-                    if (charVal != ' ') {
+                    // Draw Programmed Symbol (PS / APL) if defined
+                    var drawnAsPs = false
+                    if (csVal >= 0x40 && programSymbolManager != null) {
+                        val slot = programSymbolManager.getSymbol(csVal, ecVal)
+                        if (slot != null) {
+                            val symWidth = slot.width
+                            val symHeight = slot.height
+                            val rgbArray = slot.getRgbPixels(fgColor.toArgb(), bgColor.toArgb())
+                            if (rgbArray != null && symWidth > 0 && symHeight > 0) {
+                                val bmp = android.graphics.Bitmap.createBitmap(rgbArray, symWidth, symHeight, android.graphics.Bitmap.Config.ARGB_8888)
+                                drawContext.canvas.nativeCanvas.drawBitmap(
+                                    bmp,
+                                    null,
+                                    android.graphics.RectF(left, top, left + cellWidth, top + cellHeight),
+                                    null
+                                )
+                                drawnAsPs = true
+                            }
+                        }
+                    }
+
+                    if (!drawnAsPs && charVal != ' ') {
                         paint.color = fgColor.toArgb()
                         paint.isFakeBoldText = isBold
                         val fontMetrics = paint.fontMetrics
-                        val textY = top + (cellHeight - fontMetrics.bottom + fontMetrics.top) / 2 - fontMetrics.top
+                        val textX = left + cellWidth / 2f
+                        val textY = top + (cellHeight - fontMetrics.bottom + fontMetrics.top) / 2f - fontMetrics.top
 
                         drawContext.canvas.nativeCanvas.drawText(
                             charVal.toString(),
-                            left + (cellWidth / 4),
+                            textX,
                             textY,
                             paint
                         )
@@ -307,13 +382,32 @@ fun TerminalView(
                     if (isUnderline) {
                         drawLine(
                             color = fgColor,
-                            start = Offset(left, top + cellHeight - 2),
-                            end = Offset(left + cellWidth, top + cellHeight - 2),
+                            start = Offset(left, top + cellHeight - 2f),
+                            end = Offset(left + cellWidth, top + cellHeight - 2f),
                             strokeWidth = 2f
                         )
                     }
                 }
             }
+
+            // Draw Vector Graphics Plane overlay if present
+            if (graphicsPlane != null && graphicsPlane.hasContent()) {
+                val gridW = metrics.gridWidth.toInt()
+                val gridH = metrics.gridHeight.toInt()
+                if (gridW > 0 && gridH > 0) {
+                    graphicsPlane.resize(gridW, gridH)
+                    val rgb = graphicsPlane.rgbBuffer
+                    if (rgb != null) {
+                        val bmp = android.graphics.Bitmap.createBitmap(rgb, gridW, gridH, android.graphics.Bitmap.Config.ARGB_8888)
+                        drawContext.canvas.nativeCanvas.drawBitmap(
+                            bmp,
+                            null,
+                            android.graphics.RectF(offsetX, offsetY, offsetX + gridW.toFloat(), offsetY + gridH.toFloat()),
+                            null
+                        )
+                    }
+                }
+            }
         }
 
         // Context Menu Popup
@@ -370,6 +464,57 @@ fun TerminalView(
     }
 }
 
+data class TerminalGridMetrics(
+    val cellWidth: Float,
+    val cellHeight: Float,
+    val gridWidth: Float,
+    val gridHeight: Float,
+    val offsetX: Float,
+    val offsetY: Float
+)
+
+fun calculateGridMetrics(
+    viewWidth: Float,
+    viewHeight: Float,
+    cols: Int,
+    rows: Int
+): TerminalGridMetrics {
+    if (viewWidth <= 0f || viewHeight <= 0f || cols <= 0 || rows <= 0) {
+        return TerminalGridMetrics(0f, 0f, 0f, 0f, 0f, 0f)
+    }
+
+    val rawCellW = viewWidth / cols
+    val rawCellH = viewHeight / rows
+    val currentRatio = rawCellW / rawCellH
+
+    // Target terminal cell aspect ratio is roughly 0.50 to 0.60 (width / height)
+    val targetMinRatio = 0.48f
+    val targetMaxRatio = 0.60f
+
+    val cellW: Float
+    val cellH: Float
+
+    if (currentRatio > targetMaxRatio) {
+        // Screen is wider than ideal aspect ratio -> clamp width, pillarbox (equal blank bars left/right)
+        cellH = rawCellH
+        cellW = rawCellH * targetMaxRatio
+    } else if (currentRatio < targetMinRatio) {
+        // Screen is taller than ideal aspect ratio -> clamp height, letterbox (equal blank bars top/bottom)
+        cellW = rawCellW
+        cellH = rawCellW / targetMinRatio
+    } else {
+        cellW = rawCellW
+        cellH = rawCellH
+    }
+
+    val gridW = cols * cellW
+    val gridH = rows * cellH
+    val offX = (viewWidth - gridW) / 2f
+    val offY = (viewHeight - gridH) / 2f
+
+    return TerminalGridMetrics(cellW, cellH, gridW, gridH, offX, offY)
+}
+
 private fun copySelection(
     start: Offset?,
     end: Offset?,
@@ -381,13 +526,15 @@ private fun copySelection(
 ) {
     if (start != null && end != null && screenBuffer != null && cols > 0 && rows > 0) {
         val displayMetrics = context.resources.displayMetrics
-        val cellWidth = displayMetrics.widthPixels.toFloat() / cols
-        val cellHeight = displayMetrics.heightPixels.toFloat() / rows
+        val viewW = displayMetrics.widthPixels.toFloat()
+        val viewH = displayMetrics.heightPixels.toFloat()
+        val metrics = calculateGridMetrics(viewW, viewH, cols, rows)
+        if (metrics.cellWidth <= 0f || metrics.cellHeight <= 0f) return
 
-        val startCol = (start.x / cellWidth).toInt().coerceIn(0, cols - 1)
-        val startRow = (start.y / cellHeight).toInt().coerceIn(0, rows - 1)
-        val endCol = (end.x / cellWidth).toInt().coerceIn(0, cols - 1)
-        val endRow = (end.y / cellHeight).toInt().coerceIn(0, rows - 1)
+        val startCol = ((start.x - metrics.offsetX) / metrics.cellWidth).toInt().coerceIn(0, cols - 1)
+        val startRow = ((start.y - metrics.offsetY) / metrics.cellHeight).toInt().coerceIn(0, rows - 1)
+        val endCol = ((end.x - metrics.offsetX) / metrics.cellWidth).toInt().coerceIn(0, cols - 1)
+        val endRow = ((end.y - metrics.offsetY) / metrics.cellHeight).toInt().coerceIn(0, rows - 1)
 
         val minRow = minOf(startRow, endRow)
         val maxRow = maxOf(startRow, endRow)

src/main/java/haus/nightmare/a3270/ui/UntrustedCertificateDialog.kt

@@ -0,0 +1,192 @@
+package haus.nightmare.a3270.ui
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.border
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.*
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.compose.ui.window.Dialog
+import androidx.compose.ui.window.DialogProperties
+import java.security.MessageDigest
+import java.security.cert.CertificateException
+import java.security.cert.X509Certificate
+import java.text.SimpleDateFormat
+import java.util.Locale
+
+@Composable
+fun UntrustedCertificateDialog(
+    host: String,
+    port: Int,
+    chain: Array<X509Certificate>?,
+    exception: CertificateException?,
+    onAccept: () -> Unit,
+    onReject: () -> Unit
+) {
+    val cert = chain?.firstOrNull()
+    val sdf = SimpleDateFormat("yyyy-MM-dd HH:mm:ss z", Locale.US)
+
+    val detailsText = buildString {
+        if (exception != null) {
+            append("Validation Error:\n  ")
+            append(exception.localizedMessage ?: exception.message ?: exception.toString())
+            append("\n\n")
+        }
+        if (cert != null) {
+            try {
+                append("Subject:\n  ")
+                append(cert.subjectX500Principal?.name ?: cert.subjectDN?.name ?: "Unknown")
+                append("\n\n")
+            } catch (t: Throwable) {
+                append("Subject: ${t.message ?: "Unavailable"}\n\n")
+            }
+
+            try {
+                append("Issuer:\n  ")
+                append(cert.issuerX500Principal?.name ?: cert.issuerDN?.name ?: "Unknown")
+                append("\n\n")
+            } catch (t: Throwable) {
+                append("Issuer: ${t.message ?: "Unavailable"}\n\n")
+            }
+
+            try {
+                append("Validity:\n  From: ")
+                append(cert.notBefore?.let { sdf.format(it) } ?: "Unknown")
+                append("\n  To:   ")
+                append(cert.notAfter?.let { sdf.format(it) } ?: "Unknown")
+                append("\n\n")
+            } catch (t: Throwable) {
+                append("Validity: ${t.message ?: "Unavailable"}\n\n")
+            }
+
+            try {
+                append("Serial Number:\n  ")
+                append(cert.serialNumber?.toString(16)?.uppercase(Locale.US) ?: "Unknown")
+                append("\n\n")
+            } catch (t: Throwable) {
+                append("Serial Number: ${t.message ?: "Unavailable"}\n\n")
+            }
+
+            try {
+                append("SHA-256 Fingerprint:\n  ")
+                append(computeFingerprint(cert, "SHA-256"))
+                append("\n\n")
+            } catch (t: Throwable) {
+                append("SHA-256 Fingerprint: ${t.message ?: "Unavailable"}\n\n")
+            }
+
+            try {
+                append("SHA-1 Fingerprint:\n  ")
+                append(computeFingerprint(cert, "SHA-1"))
+            } catch (t: Throwable) {
+                append("SHA-1 Fingerprint: ${t.message ?: "Unavailable"}")
+            }
+        } else {
+            append("No peer certificate information available.")
+        }
+    }
+
+    Dialog(
+        onDismissRequest = onReject,
+        properties = DialogProperties(dismissOnBackPress = true, dismissOnClickOutside = false)
+    ) {
+        Surface(
+            shape = RoundedCornerShape(12.dp),
+            color = Color(0xFF1E1E1E),
+            tonalElevation = 6.dp,
+            modifier = Modifier
+                .fillMaxWidth(0.96f)
+                .wrapContentHeight()
+        ) {
+            Column(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(16.dp),
+                verticalArrangement = Arrangement.spacedBy(10.dp)
+            ) {
+                // Header
+                Row(
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.spacedBy(10.dp)
+                ) {
+                    Text(
+                        text = "⚠️",
+                        fontSize = 24.sp
+                    )
+                    Column {
+                        Text(
+                            text = "Untrusted SSL/TLS Certificate",
+                            fontSize = 16.sp,
+                            fontWeight = FontWeight.Bold,
+                            color = Color(0xFFFFB450)
+                        )
+                        Text(
+                            text = "The server certificate for $host:$port could not be verified.",
+                            fontSize = 12.sp,
+                            color = Color.LightGray
+                        )
+                    }
+                }
+
+                // Scrollable Certificate Details Box
+                Box(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .heightIn(max = 280.dp)
+                        .background(Color(0xFF121212), RoundedCornerShape(6.dp))
+                        .border(1.dp, Color(0xFF333333), RoundedCornerShape(6.dp))
+                        .padding(10.dp)
+                ) {
+                    val scrollState = rememberScrollState()
+                    Text(
+                        text = detailsText,
+                        color = Color(0xFFDCDCDC),
+                        fontSize = 11.sp,
+                        fontFamily = FontFamily.Monospace,
+                        lineHeight = 15.sp,
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .verticalScroll(scrollState)
+                    )
+                }
+
+                // Action Buttons
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.End,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    TextButton(onClick = onReject) {
+                        Text("Cancel Connection", color = Color.LightGray)
+                    }
+                    Spacer(modifier = Modifier.width(8.dp))
+                    Button(
+                        onClick = onAccept,
+                        colors = ButtonDefaults.buttonColors(containerColor = Color(0xFFB46428))
+                    ) {
+                        Text("Connect Anyway", color = Color.White, fontWeight = FontWeight.Bold)
+                    }
+                }
+            }
+        }
+    }
+}
+
+private fun computeFingerprint(cert: X509Certificate, algorithm: String): String {
+    return try {
+        val md = MessageDigest.getInstance(algorithm)
+        val digest = md.digest(cert.encoded)
+        digest.joinToString(":") { "%02X".format(it.toInt() and 0xFF) }
+    } catch (e: Throwable) {
+        "Unable to compute fingerprint: ${e.message}"
+    }
+}

src/main/java/org/pubvm/a3270/MainActivity.kt

@@ -1,368 +0,0 @@
-package org.pubvm.a3270
-
-import android.content.pm.PackageManager
-import android.os.Build
-import android.os.Bundle
-import android.view.KeyEvent
-import androidx.activity.ComponentActivity
-import androidx.activity.compose.setContent
-import androidx.activity.viewModels
-import androidx.compose.foundation.background
-import androidx.compose.foundation.layout.*
-import androidx.compose.foundation.text.BasicTextField
-import androidx.compose.foundation.text.KeyboardActions
-import androidx.compose.foundation.text.KeyboardOptions
-import androidx.compose.material3.*
-import androidx.compose.runtime.*
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.focus.FocusRequester
-import androidx.compose.ui.focus.focusRequester
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.graphics.SolidColor
-import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.platform.LocalSoftwareKeyboardController
-import androidx.compose.ui.text.TextStyle
-import androidx.compose.ui.text.TextRange
-import androidx.compose.ui.text.input.ImeAction
-import androidx.compose.ui.text.input.KeyboardCapitalization
-import androidx.compose.ui.text.input.KeyboardType
-import androidx.compose.ui.text.input.TextFieldValue
-import androidx.compose.ui.unit.dp
-import androidx.core.view.WindowCompat
-import org.lib3270j.protocol.DS3270Constants.AID_ENTER
-import org.pubvm.a3270.service.TerminalService
-import org.pubvm.a3270.storage.HostStorage
-import org.pubvm.a3270.ui.ConnectDialog
-import org.pubvm.a3270.ui.FileTransferDialog
-import org.pubvm.a3270.ui.SettingsDialog
-import org.pubvm.a3270.ui.TwoRowKeyBar
-import org.pubvm.a3270.ui.OiaStatusBar
-import org.pubvm.a3270.ui.TerminalView
-
-import androidx.compose.foundation.layout.size
-import androidx.compose.ui.input.key.Key
-import androidx.compose.ui.input.key.KeyEventType
-import androidx.compose.ui.input.key.key
-import androidx.compose.ui.input.key.onPreviewKeyEvent
-import androidx.compose.ui.input.key.type
-import androidx.compose.ui.platform.LocalLifecycleOwner
-import androidx.lifecycle.Lifecycle
-import androidx.lifecycle.LifecycleEventObserver
-
-class MainActivity : ComponentActivity() {
-
-    private val viewModel: TerminalViewModel by viewModels()
-    private val isShiftPressedState = mutableStateOf(false)
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        WindowCompat.setDecorFitsSystemWindows(window, false)
-        window.setSoftInputMode(
-            android.view.WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE or
-            android.view.WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE
-        )
-
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
-            if (checkSelfPermission(android.Manifest.permission.POST_NOTIFICATIONS) != PackageManager.PERMISSION_GRANTED) {
-                requestPermissions(arrayOf(android.Manifest.permission.POST_NOTIFICATIONS), 101)
-            }
-        }
-
-        setContent {
-            MaterialTheme(
-                colorScheme = darkColorScheme(
-                    background = Color(0xFF000000),
-                    surface = Color(0xFF1E1E1E)
-                )
-            ) {
-                MainScreen(
-                    viewModel = viewModel,
-                    isShiftPressed = isShiftPressedState.value,
-                    onClearShift = { isShiftPressedState.value = false }
-                )
-            }
-        }
-    }
-
-    override fun dispatchKeyEvent(event: KeyEvent): Boolean {
-        val shift = event.isShiftPressed || (event.metaState and KeyEvent.META_SHIFT_ON != 0)
-        if (isShiftPressedState.value != shift) {
-            isShiftPressedState.value = shift
-        }
-
-        if (event.action == KeyEvent.ACTION_DOWN) {
-            val keyCode = event.keyCode
-            if (keyCode in KeyEvent.KEYCODE_F1..KeyEvent.KEYCODE_F12) {
-                val fNum = keyCode - KeyEvent.KEYCODE_F1 + 1
-                val pfNum = if (shift) fNum + 12 else fNum
-                val pfAids = intArrayOf(
-                    org.lib3270j.protocol.DS3270Constants.AID_PF1, org.lib3270j.protocol.DS3270Constants.AID_PF2,
-                    org.lib3270j.protocol.DS3270Constants.AID_PF3, org.lib3270j.protocol.DS3270Constants.AID_PF4,
-                    org.lib3270j.protocol.DS3270Constants.AID_PF5, org.lib3270j.protocol.DS3270Constants.AID_PF6,
-                    org.lib3270j.protocol.DS3270Constants.AID_PF7, org.lib3270j.protocol.DS3270Constants.AID_PF8,
-                    org.lib3270j.protocol.DS3270Constants.AID_PF9, org.lib3270j.protocol.DS3270Constants.AID_PF10,
-                    org.lib3270j.protocol.DS3270Constants.AID_PF11, org.lib3270j.protocol.DS3270Constants.AID_PF12,
-                    org.lib3270j.protocol.DS3270Constants.AID_PF13, org.lib3270j.protocol.DS3270Constants.AID_PF14,
-                    org.lib3270j.protocol.DS3270Constants.AID_PF15, org.lib3270j.protocol.DS3270Constants.AID_PF16,
-                    org.lib3270j.protocol.DS3270Constants.AID_PF17, org.lib3270j.protocol.DS3270Constants.AID_PF18,
-                    org.lib3270j.protocol.DS3270Constants.AID_PF19, org.lib3270j.protocol.DS3270Constants.AID_PF20,
-                    org.lib3270j.protocol.DS3270Constants.AID_PF21, org.lib3270j.protocol.DS3270Constants.AID_PF22,
-                    org.lib3270j.protocol.DS3270Constants.AID_PF23, org.lib3270j.protocol.DS3270Constants.AID_PF24
-                )
-                viewModel.sendAid(pfAids[pfNum - 1])
-                if (shift) {
-                    isShiftPressedState.value = false
-                }
-                return true
-            } else if (keyCode == KeyEvent.KEYCODE_DPAD_LEFT) {
-                viewModel.cursorLeft()
-                return true
-            } else if (keyCode == KeyEvent.KEYCODE_DPAD_UP) {
-                viewModel.cursorUp()
-                return true
-            } else if (keyCode == KeyEvent.KEYCODE_DPAD_DOWN) {
-                viewModel.cursorDown()
-                return true
-            } else if (keyCode == KeyEvent.KEYCODE_DPAD_RIGHT) {
-                viewModel.cursorRight()
-                return true
-            } else if (keyCode == KeyEvent.KEYCODE_ENTER || keyCode == KeyEvent.KEYCODE_NUMPAD_ENTER) {
-                viewModel.sendAid(AID_ENTER)
-                return true
-            } else if (keyCode == KeyEvent.KEYCODE_TAB) {
-                if (event.isShiftPressed) {
-                    viewModel.backTab()
-                } else {
-                    viewModel.tab()
-                }
-                return true
-            }
-        }
-        return super.dispatchKeyEvent(event)
-    }
-}
-
-@Composable
-fun MainScreen(
-    viewModel: TerminalViewModel,
-    isShiftPressed: Boolean = false,
-    onClearShift: () -> Unit = {}
-) {
-    val context = LocalContext.current
-    val connectionState by viewModel.connectionState.collectAsState()
-    val screenBuffer by viewModel.screenBuffer.collectAsState()
-    val rows by viewModel.rows.collectAsState()
-    val cols by viewModel.cols.collectAsState()
-    val cursorAddr by viewModel.cursorAddress.collectAsState()
-    val oiaText by viewModel.oiaText.collectAsState()
-    val isKeyboardLocked by viewModel.isKeyboardLocked.collectAsState()
-    val screenVersion by viewModel.screenVersion.collectAsState()
-    val maskHiddenInput by viewModel.maskHiddenInput.collectAsState()
-    val cursorBlink by viewModel.cursorBlink.collectAsState()
-
-    var showConnectDialog by remember { mutableStateOf(false) }
-    var showFtDialog by remember { mutableStateOf(false) }
-    var showSettingsDialog by remember { mutableStateOf(false) }
-
-    val focusRequester = remember { FocusRequester() }
-    val keyboardController = LocalSoftwareKeyboardController.current
-
-    var textFieldValue by remember { mutableStateOf(TextFieldValue("")) }
-
-    val lifecycleOwner = LocalLifecycleOwner.current
-    DisposableEffect(lifecycleOwner) {
-        val observer = LifecycleEventObserver { _, event ->
-            if (event == Lifecycle.Event.ON_STOP) {
-                viewModel.isAppInBackground = true
-            } else if (event == Lifecycle.Event.ON_START) {
-                viewModel.isAppInBackground = false
-            }
-        }
-        lifecycleOwner.lifecycle.addObserver(observer)
-        onDispose {
-            lifecycleOwner.lifecycle.removeObserver(observer)
-        }
-    }
-
-    LaunchedEffect(Unit) {
-        val autoHost = HostStorage.getAutoConnectHost(context)
-        if (autoHost != null && !connectionState.isConnected()) {
-            viewModel.connect(autoHost.host, autoHost.port, autoHost.model, autoHost.luName)
-        }
-    }
-
-    LaunchedEffect(connectionState) {
-        if (connectionState.isConnected()) {
-            val activeHost = viewModel.currentHost.ifBlank { "Mainframe" }
-            TerminalService.start(context, activeHost)
-        } else {
-            TerminalService.stop(context)
-        }
-    }
-
-    Box(
-        modifier = Modifier
-            .fillMaxSize()
-            .background(Color.Black)
-            .windowInsetsPadding(WindowInsets.systemBars)
-            .imePadding()
-    ) {
-        Column(
-            modifier = Modifier.fillMaxSize()
-        ) {
-            // Main 3270 Terminal Screen View (100% clean top screen, zero overlays)
-            TerminalView(
-                screenBuffer = screenBuffer,
-                rows = rows,
-                cols = cols,
-                cursorAddr = cursorAddr,
-                screenVersion = screenVersion,
-                maskHiddenFields = maskHiddenInput,
-                blinkCursor = cursorBlink,
-                onTapAddress = { addr ->
-                    viewModel.setCursor(addr)
-                    focusRequester.requestFocus()
-                    keyboardController?.show()
-                },
-                onPasteText = { text ->
-                    viewModel.pasteString(text)
-                },
-                modifier = Modifier.weight(1f)
-            )
-
-            // Transparent BasicTextField maintaining active Android IME connection
-            BasicTextField(
-                value = textFieldValue,
-                onValueChange = { newValue ->
-                    val text = newValue.text
-                    if (text.isNotEmpty()) {
-                        for (ch in text) {
-                            if (ch == '\n' || ch == '\r') {
-                                viewModel.sendAid(AID_ENTER)
-                            } else {
-                                viewModel.typeChar(ch)
-                            }
-                        }
-                        textFieldValue = TextFieldValue("")
-                        onClearShift()
-                    }
-                },
-                textStyle = TextStyle(color = Color.Transparent),
-                cursorBrush = SolidColor(Color.Transparent),
-                keyboardOptions = KeyboardOptions(
-                    keyboardType = KeyboardType.Ascii,
-                    autoCorrect = false,
-                    capitalization = KeyboardCapitalization.None,
-                    imeAction = ImeAction.None
-                ),
-                keyboardActions = KeyboardActions(
-                    onDone = { viewModel.sendAid(AID_ENTER) },
-                    onGo = { viewModel.sendAid(AID_ENTER) },
-                    onSend = { viewModel.sendAid(AID_ENTER) },
-                    onNext = {
-                        // Stubbed for future form field navigation
-                    }
-                ),
-                modifier = Modifier
-                    .size(1.dp)
-                    .focusRequester(focusRequester)
-                    .onPreviewKeyEvent { keyEvent ->
-                        if (keyEvent.type == KeyEventType.KeyDown && keyEvent.key == androidx.compose.ui.input.key.Key.Backspace) {
-                            viewModel.backspace()
-                            onClearShift()
-                            true
-                        } else {
-                            false
-                        }
-                    }
-            )
-
-            // Two Button Rows at the bottom (Row 1: System/Actions/Nav, Row 2: PF1-PF24)
-            TwoRowKeyBar(
-                connectionState = connectionState,
-                isShiftPressed = isShiftPressed,
-                onClearShift = onClearShift,
-                onConnectClick = { showConnectDialog = true },
-                onDisconnectClick = { viewModel.disconnect() },
-                onFtClick = { showFtDialog = true },
-                onSettingsClick = { showSettingsDialog = true },
-                onSendAid = { aid ->
-                    viewModel.sendAid(aid)
-                    focusRequester.requestFocus()
-                },
-                onReset = {
-                    viewModel.resetKeyboard()
-                    focusRequester.requestFocus()
-                },
-                onTab = {
-                    viewModel.tab()
-                    focusRequester.requestFocus()
-                },
-                onBackTab = {
-                    viewModel.backTab()
-                    focusRequester.requestFocus()
-                },
-                onCursorLeft = {
-                    viewModel.cursorLeft()
-                    focusRequester.requestFocus()
-                },
-                onCursorUp = {
-                    viewModel.cursorUp()
-                    focusRequester.requestFocus()
-                },
-                onCursorDown = {
-                    viewModel.cursorDown()
-                    focusRequester.requestFocus()
-                },
-                onCursorRight = {
-                    viewModel.cursorRight()
-                    focusRequester.requestFocus()
-                }
-            )
-
-            // OIA Status Bar
-            OiaStatusBar(
-                connectionState = connectionState,
-                currentHost = viewModel.currentHost,
-                isKeyboardLocked = isKeyboardLocked,
-                oiaText = oiaText,
-                cursorAddr = cursorAddr,
-                rows = rows,
-                cols = cols
-            )
-        }
-    }
-
-    if (showConnectDialog) {
-        ConnectDialog(
-            onDismiss = { showConnectDialog = false },
-            onConnect = { host, port, model, luName ->
-                showConnectDialog = false
-                viewModel.connect(host, port, model, luName)
-                focusRequester.requestFocus()
-            }
-        )
-    }
-
-    if (showFtDialog) {
-        FileTransferDialog(
-            onDismiss = { showFtDialog = false },
-            onStartTransfer = { config ->
-                showFtDialog = false
-            }
-        )
-    }
-
-    if (showSettingsDialog) {
-        SettingsDialog(
-            initialMaskHiddenInput = maskHiddenInput,
-            initialCursorBlink = cursorBlink,
-            onDismiss = { showSettingsDialog = false },
-            onSave = { mask, blink ->
-                showSettingsDialog = false
-                viewModel.updateSettings(mask, blink)
-                focusRequester.requestFocus()
-            }
-        )
-    }
-}

src/main/java/org/pubvm/a3270/TerminalViewModel.kt

@@ -1,434 +0,0 @@
-package org.pubvm.a3270
-
-import android.app.Application
-import androidx.lifecycle.AndroidViewModel
-import androidx.lifecycle.viewModelScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.asCoroutineDispatcher
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.StateFlow
-import kotlinx.coroutines.flow.asStateFlow
-import kotlinx.coroutines.launch
-import org.lib3270j.ConnectionConfig
-import org.lib3270j.ConnectionState
-import org.lib3270j.Telnet3270Client
-import org.lib3270j.TerminalModel
-import org.lib3270j.listener.ConnectionListener
-import org.lib3270j.listener.ScreenUpdateListener
-import org.lib3270j.protocol.DS3270Constants.faIsProtected
-import org.lib3270j.screen.ScreenBuffer
-import org.pubvm.a3270.service.TerminalService
-import org.pubvm.a3270.storage.AppSettings
-import java.util.concurrent.Executors
-import java.util.logging.Logger
-
-class TerminalViewModel(application: Application) : AndroidViewModel(application) {
-
-    private val log = Logger.getLogger(TerminalViewModel::class.java.name)
-
-    var isAppInBackground: Boolean = false
-
-    // Dedicated single-thread FIFO queue for all local keyboard and cursor actions
-    private val inputExecutor = Executors.newSingleThreadExecutor()
-    private val inputDispatcher = inputExecutor.asCoroutineDispatcher()
-
-    private val _connectionState = MutableStateFlow(ConnectionState.NOT_CONNECTED)
-    val connectionState: StateFlow<ConnectionState> = _connectionState.asStateFlow()
-
-    private val _screenBuffer = MutableStateFlow<ScreenBuffer?>(null)
-    val screenBuffer: StateFlow<ScreenBuffer?> = _screenBuffer.asStateFlow()
-
-    private val _rows = MutableStateFlow(24)
-    val rows: StateFlow<Int> = _rows.asStateFlow()
-
-    private val _cols = MutableStateFlow(80)
-    val cols: StateFlow<Int> = _cols.asStateFlow()
-
-    private val _cursorAddress = MutableStateFlow(0)
-    val cursorAddress: StateFlow<Int> = _cursorAddress.asStateFlow()
-
-    private val _oiaText = MutableStateFlow("Disconnected")
-    val oiaText: StateFlow<String> = _oiaText.asStateFlow()
-
-    private val _screenVersion = MutableStateFlow(0L)
-    val screenVersion: StateFlow<Long> = _screenVersion.asStateFlow()
-
-    private val _isKeyboardLocked = MutableStateFlow(false)
-    val isKeyboardLocked: StateFlow<Boolean> = _isKeyboardLocked.asStateFlow()
-
-    private val _maskHiddenInput = MutableStateFlow(AppSettings.isMaskHiddenInputEnabled(application))
-    val maskHiddenInput: StateFlow<Boolean> = _maskHiddenInput.asStateFlow()
-
-    private val _cursorBlink = MutableStateFlow(AppSettings.isCursorBlinkEnabled(application))
-    val cursorBlink: StateFlow<Boolean> = _cursorBlink.asStateFlow()
-
-    fun updateSettings(maskHidden: Boolean, blink: Boolean) {
-        AppSettings.setMaskHiddenInputEnabled(getApplication(), maskHidden)
-        AppSettings.setCursorBlinkEnabled(getApplication(), blink)
-        _maskHiddenInput.value = maskHidden
-        _cursorBlink.value = blink
-    }
-
-    private var client: Telnet3270Client? = null
-    var currentHost: String = ""
-        private set
-
-    private var lastScreenContentHash: Int = 0
-    private var hasInitialScreenLoaded: Boolean = false
-
-    fun connect(host: String, port: Int = 23, modelNum: Int = 2, luName: String = "") {
-        if (_connectionState.value.isConnected()) return
-        currentHost = host
-        lastScreenContentHash = 0
-        hasInitialScreenLoaded = false
-
-        viewModelScope.launch(Dispatchers.IO) {
-            try {
-                _oiaText.value = "Connecting to $host:$port..."
-
-                val model = when (modelNum) {
-                    3 -> TerminalModel.IBM_3279_3
-                    4 -> TerminalModel.IBM_3279_4
-                    5 -> TerminalModel.IBM_3279_5
-                    else -> TerminalModel.IBM_3279_2
-                }
-
-                val config = ConnectionConfig(host, port, model).apply {
-                    if (luName.isNotBlank()) {
-                        setLuName(luName)
-                    }
-                }
-
-                val newClient = Telnet3270Client(config)
-                this@TerminalViewModel.client = newClient
-
-                newClient.addConnectionListener(object : ConnectionListener {
-                    override fun onConnectionStateChanged(oldState: ConnectionState, newState: ConnectionState) {
-                        _connectionState.value = newState
-                        _oiaText.value = if (newState.isFullSession()) {
-                            "3270 Connected ($host)"
-                        } else if (newState.isHalfConnected()) {
-                            "Connecting..."
-                        } else {
-                            "Disconnected"
-                        }
-                    }
-
-                    override fun onConnectionError(message: String) {
-                        log.warning("Connection error: $message")
-                        _oiaText.value = "Error: $message"
-                    }
-                })
-
-                newClient.inputProcessor.setLockStateListener { locked ->
-                    _isKeyboardLocked.value = locked
-                }
-
-                newClient.addScreenUpdateListener(object : ScreenUpdateListener {
-                    override fun onScreenUpdated() {
-                        val buf = newClient.screenBuffer
-                        _screenBuffer.value = buf
-                        if (buf != null) {
-                            _rows.value = buf.rows
-                            _cols.value = buf.cols
-                            _cursorAddress.value = buf.cursorAddress
-                        }
-                        _isKeyboardLocked.value = newClient.inputProcessor.isKeyboardLocked
-                        _screenVersion.value = System.currentTimeMillis()
-
-                        val newHash = computeScreenContentHash(buf)
-                        val contentChanged = (newHash != lastScreenContentHash)
-
-                        if (!hasInitialScreenLoaded) {
-                            if (buf != null && newHash != 0) {
-                                hasInitialScreenLoaded = true
-                                lastScreenContentHash = newHash
-                            }
-                        } else if (contentChanged) {
-                            lastScreenContentHash = newHash
-                            if (isAppInBackground) {
-                                val snippet = extractScreenSnippet(buf)
-                                val activeHost = currentHost.ifBlank { "Mainframe" }
-                                TerminalService.notifyScreenUpdate(getApplication(), activeHost, snippet)
-                            }
-                        }
-                    }
-
-                    override fun onSoundAlarm() {
-                        log.fine("Sound Alarm")
-                    }
-                })
-
-                _rows.value = model.defaultRows
-                _cols.value = model.defaultCols
-                _screenBuffer.value = newClient.screenBuffer
-
-                newClient.connect()
-            } catch (e: Exception) {
-                log.severe("Failed to connect: ${e.message}")
-                _connectionState.value = ConnectionState.NOT_CONNECTED
-                _oiaText.value = "Failed: ${e.localizedMessage ?: e.message}"
-            }
-        }
-    }
-
-    fun disconnect() {
-        viewModelScope.launch(Dispatchers.IO) {
-            try {
-                client?.disconnect()
-                client = null
-                _connectionState.value = ConnectionState.NOT_CONNECTED
-                _oiaText.value = "Disconnected"
-            } catch (e: Exception) {
-                log.warning("Error disconnecting: ${e.message}")
-            }
-        }
-    }
-
-    fun typeChar(ch: Char) {
-        val c = client ?: return
-        viewModelScope.launch(inputDispatcher) {
-            try {
-                val ip = c.inputProcessor
-                ip.isKeyboardLocked = false // Ensure keyboard lock is cleared on user typing
-                val buf = c.screenBuffer
-                var curAddr = buf.cursorAddress
-                if (buf.isFormatted) {
-                    val faVal = buf.getFieldAttributeAt(curAddr)
-                    if (faIsProtected(faVal.toInt() and 0xFF) || buf.getCell(curAddr).isFieldAttribute) {
-                        curAddr = buf.findNextUnprotected(curAddr)
-                        buf.cursorAddress = curAddr
-                    }
-                }
-                ip.typeCharacter(ch)
-                _cursorAddress.value = c.screenBuffer.cursorAddress
-                _screenVersion.value = System.currentTimeMillis()
-            } catch (e: Exception) {
-                log.warning("Error typing char: ${e.message}")
-            }
-        }
-    }
-
-    fun pasteString(text: String) {
-        val c = client ?: return
-        viewModelScope.launch(inputDispatcher) {
-            try {
-                val ip = c.inputProcessor
-                ip.isKeyboardLocked = false
-                for (ch in text) {
-                    if (ch == '\n' || ch == '\r') {
-                        ip.tab()
-                    } else if (ch >= ' ') {
-                        ip.typeCharacter(ch)
-                    }
-                }
-                _cursorAddress.value = c.screenBuffer.cursorAddress
-                _screenVersion.value = System.currentTimeMillis()
-            } catch (e: Exception) {
-                log.warning("Error pasting text: ${e.message}")
-            }
-        }
-    }
-
-    fun backspace() {
-        val c = client ?: return
-        viewModelScope.launch(inputDispatcher) {
-            try {
-                c.inputProcessor.isKeyboardLocked = false
-                c.inputProcessor.backspace()
-                _cursorAddress.value = c.screenBuffer.cursorAddress
-                _screenVersion.value = System.currentTimeMillis()
-            } catch (e: Exception) {
-                log.warning("Error backspacing: ${e.message}")
-            }
-        }
-    }
-
-    fun tab() {
-        val c = client ?: return
-        viewModelScope.launch(inputDispatcher) {
-            try {
-                c.inputProcessor.tab()
-                _cursorAddress.value = c.screenBuffer.cursorAddress
-                _screenVersion.value = System.currentTimeMillis()
-            } catch (e: Exception) {
-                log.warning("Error tabbing: ${e.message}")
-            }
-        }
-    }
-
-    fun backTab() {
-        val c = client ?: return
-        viewModelScope.launch(inputDispatcher) {
-            try {
-                c.inputProcessor.backTab()
-                _cursorAddress.value = c.screenBuffer.cursorAddress
-                _screenVersion.value = System.currentTimeMillis()
-            } catch (e: Exception) {
-                log.warning("Error back-tabbing: ${e.message}")
-            }
-        }
-    }
-
-    fun resetKeyboard() {
-        val c = client ?: return
-        viewModelScope.launch(inputDispatcher) {
-            try {
-                c.inputProcessor.reset()
-                _screenVersion.value = System.currentTimeMillis()
-            } catch (e: Exception) {
-                log.warning("Error resetting keyboard: ${e.message}")
-            }
-        }
-    }
-
-    fun sendAid(aidCode: Int) {
-        val c = client ?: return
-        viewModelScope.launch(inputDispatcher) {
-            try {
-                c.inputProcessor.setKeyboardLocked(false)
-                c.inputProcessor.sendAid(aidCode)
-                _cursorAddress.value = c.screenBuffer.cursorAddress
-                _screenVersion.value = System.currentTimeMillis()
-            } catch (e: Exception) {
-                log.warning("Error sending AID: ${e.message}")
-            }
-        }
-    }
-
-    fun setCursor(baddr: Int) {
-        val buf = _screenBuffer.value ?: return
-        if (baddr in 0 until (buf.rows * buf.cols)) {
-            buf.cursorAddress = baddr
-            _cursorAddress.value = baddr
-            _screenVersion.value = System.currentTimeMillis()
-        }
-    }
-
-    fun cursorLeft() {
-        val c = client ?: return
-        viewModelScope.launch(inputDispatcher) {
-            try {
-                c.inputProcessor.cursorLeft()
-                _cursorAddress.value = c.screenBuffer.cursorAddress
-                _screenVersion.value = System.currentTimeMillis()
-            } catch (e: Exception) {
-                log.warning("Error cursorLeft: ${e.message}")
-            }
-        }
-    }
-
-    fun cursorUp() {
-        val c = client ?: return
-        viewModelScope.launch(inputDispatcher) {
-            try {
-                c.inputProcessor.cursorUp()
-                _cursorAddress.value = c.screenBuffer.cursorAddress
-                _screenVersion.value = System.currentTimeMillis()
-            } catch (e: Exception) {
-                log.warning("Error cursorUp: ${e.message}")
-            }
-        }
-    }
-
-    fun cursorDown() {
-        val c = client ?: return
-        viewModelScope.launch(inputDispatcher) {
-            try {
-                c.inputProcessor.cursorDown()
-                _cursorAddress.value = c.screenBuffer.cursorAddress
-                _screenVersion.value = System.currentTimeMillis()
-            } catch (e: Exception) {
-                log.warning("Error cursorDown: ${e.message}")
-            }
-        }
-    }
-
-    fun cursorRight() {
-        val c = client ?: return
-        viewModelScope.launch(inputDispatcher) {
-            try {
-                c.inputProcessor.cursorRight()
-                _cursorAddress.value = c.screenBuffer.cursorAddress
-                _screenVersion.value = System.currentTimeMillis()
-            } catch (e: Exception) {
-                log.warning("Error cursorRight: ${e.message}")
-            }
-        }
-    }
-
-    private fun extractScreenSnippet(buf: ScreenBuffer?): String {
-        if (buf == null) return "Mainframe screen update received"
-        val rows = buf.rows
-        val cols = buf.cols
-        if (rows <= 0 || cols <= 0) return "Mainframe screen update received"
-
-        val curAddr = _cursorAddress.value
-        val cursorRow = (curAddr / cols).coerceIn(0, rows - 1)
-
-        // 1. Check bottom 3 lines first (where 3270 status, errors, reader & I/S MSGs land)
-        val minBottomRow = (rows - 3).coerceAtLeast(1)
-        for (r in (rows - 1) downTo minBottomRow) {
-            val line = getLineText(buf, r, cols).trim()
-            if (line.length >= 4 && !line.startsWith("***") && !line.startsWith("===")) {
-                return line
-            }
-        }
-
-        // 2. Check cursor row if not row 0
-        if (cursorRow > 0) {
-            val cursorLine = getLineText(buf, cursorRow, cols).trim()
-            if (cursorLine.length >= 4) {
-                return cursorLine
-            }
-        }
-
-        // 3. Scan rows from bottom to top, skipping static header row 0
-        for (r in (rows - 1) downTo 1) {
-            val line = getLineText(buf, r, cols).trim()
-            if (line.length >= 4) {
-                return line
-            }
-        }
-
-        return getLineText(buf, 0, cols).trim().ifBlank { "Mainframe screen update received" }
-    }
-
-    private fun getLineText(buf: ScreenBuffer, row: Int, cols: Int): String {
-        val sb = StringBuilder()
-        for (c in 0 until cols) {
-            val addr = row * cols + c
-            val cell = buf.getCell(addr)
-            if (cell != null && !cell.isFieldAttribute) {
-                val ch = cell.ucs4
-                if (ch in '!'..'~' || ch.code > 127) {
-                    sb.append(ch)
-                } else {
-                    sb.append(' ')
-                }
-            } else {
-                sb.append(' ')
-            }
-        }
-        return sb.toString().replace(Regex("\\s+"), " ").trim()
-    }
-
-    private fun computeScreenContentHash(buf: ScreenBuffer?): Int {
-        if (buf == null) return 0
-        val sb = StringBuilder()
-        val total = buf.rows * buf.cols
-        for (i in 0 until total) {
-            val cell = buf.getCell(i)
-            if (cell != null && !cell.isFieldAttribute && cell.ucs4 > ' ' && cell.ucs4.code != 0xFFFF) {
-                sb.append(cell.ucs4)
-            }
-        }
-        return sb.toString().hashCode()
-    }
-
-    override fun onCleared() {
-        super.onCleared()
-        client?.disconnect()
-        inputExecutor.shutdown()
-    }
-}

src/main/java/org/pubvm/a3270/storage/AppSettings.kt

@@ -1,30 +0,0 @@
-package org.pubvm.a3270.storage
-
-import android.content.Context
-import android.content.SharedPreferences
-
-object AppSettings {
-    private const val PREFS_NAME = "a3270_settings"
-    private const val KEY_MASK_HIDDEN_INPUT = "mask_hidden_input"
-    private const val KEY_CURSOR_BLINK = "cursor_blink"
-
-    private fun getPrefs(context: Context): SharedPreferences {
-        return context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE)
-    }
-
-    fun isMaskHiddenInputEnabled(context: Context): Boolean {
-        return getPrefs(context).getBoolean(KEY_MASK_HIDDEN_INPUT, true)
-    }
-
-    fun setMaskHiddenInputEnabled(context: Context, enabled: Boolean) {
-        getPrefs(context).edit().putBoolean(KEY_MASK_HIDDEN_INPUT, enabled).apply()
-    }
-
-    fun isCursorBlinkEnabled(context: Context): Boolean {
-        return getPrefs(context).getBoolean(KEY_CURSOR_BLINK, true)
-    }
-
-    fun setCursorBlinkEnabled(context: Context, enabled: Boolean) {
-        getPrefs(context).edit().putBoolean(KEY_CURSOR_BLINK, enabled).apply()
-    }
-}

src/main/java/org/pubvm/a3270/storage/HostStorage.kt

@@ -1,105 +0,0 @@
-package org.pubvm.a3270.storage
-
-import android.content.Context
-import android.content.SharedPreferences
-import org.json.JSONArray
-import org.json.JSONObject
-import java.util.UUID
-
-data class SavedHost(
-    val id: String = UUID.randomUUID().toString(),
-    val name: String,
-    val host: String,
-    val port: Int = 23,
-    val model: Int = 2,
-    val luName: String = "",
-    val autoConnect: Boolean = false
-) {
-    fun toJson(): JSONObject {
-        return JSONObject().apply {
-            put("id", id)
-            put("name", name)
-            put("host", host)
-            put("port", port)
-            put("model", model)
-            put("luName", luName)
-            put("autoConnect", autoConnect)
-        }
-    }
-
-    companion object {
-        fun fromJson(json: JSONObject): SavedHost {
-            return SavedHost(
-                id = json.optString("id", UUID.randomUUID().toString()),
-                name = json.optString("name", "Mainframe"),
-                host = json.optString("host", "127.0.0.1"),
-                port = json.optInt("port", 23),
-                model = json.optInt("model", 2),
-                luName = json.optString("luName", ""),
-                autoConnect = json.optBoolean("autoConnect", false)
-            )
-        }
-    }
-}
-
-object HostStorage {
-    private const val PREFS_NAME = "a3270_host_prefs"
-    private const val KEY_SAVED_HOSTS = "saved_hosts"
-
-    private fun getPrefs(context: Context): SharedPreferences {
-        return context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE)
-    }
-
-    fun getSavedHosts(context: Context): List<SavedHost> {
-        val jsonStr = getPrefs(context).getString(KEY_SAVED_HOSTS, null) ?: return emptyList()
-        val list = mutableListOf<SavedHost>()
-        try {
-            val jsonArray = JSONArray(jsonStr)
-            for (i in 0 until jsonArray.length()) {
-                val obj = jsonArray.getJSONObject(i)
-                list.add(SavedHost.fromJson(obj))
-            }
-        } catch (e: Exception) {
-            e.printStackTrace()
-        }
-        return list
-    }
-
-    fun saveHost(context: Context, host: SavedHost) {
-        val currentHosts = getSavedHosts(context).toMutableList()
-        val index = currentHosts.indexOfFirst { it.id == host.id }
-
-        // If this host is set to autoConnect, unset autoConnect on all others
-        val updatedHost = if (host.autoConnect) {
-            currentHosts.indices.forEach { i ->
-                currentHosts[i] = currentHosts[i].copy(autoConnect = false)
-            }
-            host
-        } else {
-            host
-        }
-
-        if (index >= 0) {
-            currentHosts[index] = updatedHost
-        } else {
-            currentHosts.add(updatedHost)
-        }
-
-        saveAll(context, currentHosts)
-    }
-
-    fun deleteHost(context: Context, hostId: String) {
-        val currentHosts = getSavedHosts(context).filter { it.id != hostId }
-        saveAll(context, currentHosts)
-    }
-
-    fun getAutoConnectHost(context: Context): SavedHost? {
-        return getSavedHosts(context).firstOrNull { it.autoConnect }
-    }
-
-    private fun saveAll(context: Context, hosts: List<SavedHost>) {
-        val array = JSONArray()
-        hosts.forEach { array.put(it.toJson()) }
-        getPrefs(context).edit().putString(KEY_SAVED_HOSTS, array.toString()).apply()
-    }
-}

src/main/java/org/pubvm/a3270/ui/ConnectDialog.kt

@@ -1,312 +0,0 @@
-package org.pubvm.a3270.ui
-
-import androidx.compose.foundation.border
-import androidx.compose.foundation.clickable
-import androidx.compose.foundation.layout.*
-import androidx.compose.foundation.rememberScrollState
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.foundation.verticalScroll
-import androidx.compose.material3.*
-import androidx.compose.runtime.*
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
-import androidx.compose.ui.window.Dialog
-import androidx.compose.ui.focus.FocusRequester
-import androidx.compose.ui.focus.focusRequester
-import androidx.compose.ui.platform.LocalSoftwareKeyboardController
-import org.pubvm.a3270.storage.HostStorage
-import org.pubvm.a3270.storage.SavedHost
-
-@Composable
-fun ConnectDialog(
-    onDismiss: () -> Unit,
-    onConnect: (host: String, port: Int, model: Int, luName: String) -> Unit
-) {
-    val context = LocalContext.current
-    var savedHosts by remember { mutableStateOf(HostStorage.getSavedHosts(context)) }
-    var selectedHostId by remember { mutableStateOf<String?>(null) }
-
-    var profileName by remember { mutableStateOf("") }
-    var host by remember { mutableStateOf("127.0.0.1") }
-    var portStr by remember { mutableStateOf("23") }
-    var modelNum by remember { mutableIntStateOf(2) }
-    var luName by remember { mutableStateOf("") }
-    var autoConnect by remember { mutableStateOf(false) }
-
-    fun loadProfile(saved: SavedHost) {
-        selectedHostId = saved.id
-        profileName = saved.name
-        host = saved.host
-        portStr = saved.port.toString()
-        modelNum = saved.model
-        luName = saved.luName
-        autoConnect = saved.autoConnect
-    }
-
-    fun clearFields() {
-        selectedHostId = null
-        profileName = ""
-        host = "127.0.0.1"
-        portStr = "23"
-        modelNum = 2
-        luName = ""
-        autoConnect = false
-    }
-
-    fun saveCurrentProfile(): SavedHost? {
-        val port = portStr.toIntOrNull() ?: 23
-        if (host.isBlank()) return null
-        val nameToSave = profileName.ifBlank { "${host.trim()}:$port" }
-        val hostToSave = SavedHost(
-            id = selectedHostId ?: java.util.UUID.randomUUID().toString(),
-            name = nameToSave,
-            host = host.trim(),
-            port = port,
-            model = modelNum,
-            luName = luName.trim(),
-            autoConnect = autoConnect
-        )
-        HostStorage.saveHost(context, hostToSave)
-        savedHosts = HostStorage.getSavedHosts(context)
-        selectedHostId = hostToSave.id
-        return hostToSave
-    }
-
-    val focusRequester = remember { FocusRequester() }
-    val keyboardController = LocalSoftwareKeyboardController.current
-
-    LaunchedEffect(Unit) {
-        kotlinx.coroutines.delay(150)
-        focusRequester.requestFocus()
-        keyboardController?.show()
-    }
-
-    Dialog(onDismissRequest = onDismiss) {
-        Surface(
-            shape = RoundedCornerShape(12.dp),
-            color = Color(0xFF1E1E1E),
-            tonalElevation = 6.dp,
-            modifier = Modifier
-                .fillMaxWidth(0.96f)
-                .wrapContentHeight()
-        ) {
-            Column(
-                modifier = Modifier
-                    .fillMaxWidth()
-                    .padding(14.dp),
-                verticalArrangement = Arrangement.spacedBy(6.dp)
-            ) {
-                // Title Row
-                Row(
-                    modifier = Modifier.fillMaxWidth(),
-                    horizontalArrangement = Arrangement.SpaceBetween,
-                    verticalAlignment = Alignment.CenterVertically
-                ) {
-                    Text("Connect / Manage Hosts", fontWeight = FontWeight.Bold, fontSize = 15.sp, color = Color.White)
-                    TextButton(
-                        onClick = { clearFields() },
-                        contentPadding = PaddingValues(horizontal = 6.dp, vertical = 2.dp)
-                    ) {
-                        Text("+ New Profile", fontSize = 12.sp)
-                    }
-                }
-
-                // Scrollable Content Container
-                Box(
-                    modifier = Modifier
-                        .fillMaxWidth()
-                        .heightIn(max = 300.dp)
-                        .verticalScroll(rememberScrollState())
-                ) {
-                    Column(
-                        modifier = Modifier.fillMaxWidth(),
-                        verticalArrangement = Arrangement.spacedBy(6.dp)
-                    ) {
-                        // Saved Profiles List
-                        if (savedHosts.isNotEmpty()) {
-                            Text("Saved Host Profiles:", fontSize = 11.sp, fontWeight = FontWeight.Bold, color = Color.Gray)
-                            Box(
-                                modifier = Modifier
-                                    .fillMaxWidth()
-                                    .heightIn(max = 95.dp)
-                                    .verticalScroll(rememberScrollState())
-                            ) {
-                                Column(
-                                    verticalArrangement = Arrangement.spacedBy(4.dp),
-                                    modifier = Modifier.fillMaxWidth()
-                                ) {
-                                    savedHosts.forEach { profile ->
-                                        val isSelected = profile.id == selectedHostId
-                                        Surface(
-                                            shape = RoundedCornerShape(6.dp),
-                                            color = if (isSelected) Color(0xFF2C2D30) else Color(0xFF161719),
-                                            modifier = Modifier
-                                                .fillMaxWidth()
-                                                .border(
-                                                    width = if (isSelected) 1.dp else 0.dp,
-                                                    color = if (isSelected) Color(0xFF4DABF7) else Color.Transparent,
-                                                    shape = RoundedCornerShape(6.dp)
-                                                )
-                                                .clickable { loadProfile(profile) }
-                                        ) {
-                                            Row(
-                                                modifier = Modifier
-                                                    .fillMaxWidth()
-                                                    .padding(horizontal = 8.dp, vertical = 4.dp),
-                                                horizontalArrangement = Arrangement.SpaceBetween,
-                                                verticalAlignment = Alignment.CenterVertically
-                                            ) {
-                                                Column(modifier = Modifier.weight(1f)) {
-                                                    Row(verticalAlignment = Alignment.CenterVertically) {
-                                                        Text(profile.name, fontWeight = FontWeight.Bold, fontSize = 12.sp, color = Color.White)
-                                                        if (profile.autoConnect) {
-                                                            Spacer(modifier = Modifier.width(6.dp))
-                                                            Surface(
-                                                                color = Color(0xFF2B8A3E),
-                                                                shape = RoundedCornerShape(4.dp)
-                                                            ) {
-                                                                Text(
-                                                                    "AUTO",
-                                                                    fontSize = 9.sp,
-                                                                    fontWeight = FontWeight.Bold,
-                                                                    color = Color.White,
-                                                                    modifier = Modifier.padding(horizontal = 4.dp, vertical = 1.dp)
-                                                                )
-                                                            }
-                                                        }
-                                                    }
-                                                    Text("${profile.host}:${profile.port} (M${profile.model})", fontSize = 11.sp, color = Color.Gray)
-                                                }
-
-                                                Row {
-                                                    TextButton(onClick = { loadProfile(profile) }, contentPadding = PaddingValues(horizontal = 4.dp)) {
-                                                        Text("Edit", fontSize = 11.sp)
-                                                    }
-                                                    TextButton(
-                                                        onClick = {
-                                                            HostStorage.deleteHost(context, profile.id)
-                                                            savedHosts = HostStorage.getSavedHosts(context)
-                                                            if (selectedHostId == profile.id) {
-                                                                clearFields()
-                                                            }
-                                                        },
-                                                        contentPadding = PaddingValues(horizontal = 4.dp),
-                                                        colors = ButtonDefaults.textButtonColors(contentColor = Color(0xFFFF6B6B))
-                                                    ) {
-                                                        Text("Delete", fontSize = 11.sp)
-                                                    }
-                                                }
-                                            }
-                                        }
-                                    }
-                                }
-                            }
-                        }
-
-                        Text(
-                            text = if (selectedHostId != null) "Editing Profile:" else "New Profile Details:",
-                            fontSize = 11.sp,
-                            fontWeight = FontWeight.Bold,
-                            color = Color.Gray
-                        )
-
-                        OutlinedTextField(
-                            value = profileName,
-                            onValueChange = { profileName = it },
-                            label = { Text("Profile Name (Optional)") },
-                            singleLine = true,
-                            modifier = Modifier.fillMaxWidth()
-                        )
-
-                        OutlinedTextField(
-                            value = host,
-                            onValueChange = { host = it },
-                            label = { Text("Host / IP Address") },
-                            singleLine = true,
-                            modifier = Modifier
-                                .fillMaxWidth()
-                                .focusRequester(focusRequester)
-                        )
-
-                        OutlinedTextField(
-                            value = portStr,
-                            onValueChange = { portStr = it },
-                            label = { Text("Port (default 23)") },
-                            singleLine = true,
-                            modifier = Modifier.fillMaxWidth()
-                        )
-
-                        Row(
-                            horizontalArrangement = Arrangement.spacedBy(6.dp),
-                            verticalAlignment = Alignment.CenterVertically
-                        ) {
-                            Text("Model:", fontSize = 11.sp, color = Color.Gray)
-                            listOf(2, 3, 4, 5).forEach { m ->
-                                FilterChip(
-                                    selected = (modelNum == m),
-                                    onClick = { modelNum = m },
-                                    label = { Text("M$m", fontSize = 11.sp) }
-                                )
-                            }
-                        }
-
-                        OutlinedTextField(
-                            value = luName,
-                            onValueChange = { luName = it },
-                            label = { Text("LU Name (Optional)") },
-                            singleLine = true,
-                            modifier = Modifier.fillMaxWidth()
-                        )
-
-                        Row(
-                            verticalAlignment = Alignment.CenterVertically,
-                            modifier = Modifier
-                                .fillMaxWidth()
-                                .clickable { autoConnect = !autoConnect }
-                        ) {
-                            Checkbox(
-                                checked = autoConnect,
-                                onCheckedChange = { autoConnect = it }
-                            )
-                            Spacer(modifier = Modifier.width(4.dp))
-                            Text("Auto-connect on app startup", fontSize = 12.sp)
-                        }
-                    }
-                }
-
-                // Action Buttons Row
-                Row(
-                    modifier = Modifier
-                        .fillMaxWidth()
-                        .padding(top = 4.dp),
-                    horizontalArrangement = Arrangement.End,
-                    verticalAlignment = Alignment.CenterVertically
-                ) {
-                    TextButton(onClick = onDismiss) {
-                        Text("Cancel")
-                    }
-                    Spacer(modifier = Modifier.width(4.dp))
-                    OutlinedButton(onClick = { saveCurrentProfile() }) {
-                        Text("Save")
-                    }
-                    Spacer(modifier = Modifier.width(4.dp))
-                    Button(
-                        onClick = {
-                            val saved = saveCurrentProfile()
-                            if (saved != null) {
-                                onConnect(saved.host, saved.port, saved.model, saved.luName)
-                            }
-                        }
-                    ) {
-                        Text("Connect")
-                    }
-                }
-            }
-        }
-    }
-}

src/main/java/org/pubvm/a3270/ui/FileTransferDialog.kt

@@ -1,147 +0,0 @@
-package org.pubvm.a3270.ui
-
-import androidx.compose.foundation.layout.*
-import androidx.compose.material3.*
-import androidx.compose.runtime.*
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.focus.FocusRequester
-import androidx.compose.ui.focus.focusRequester
-import androidx.compose.ui.platform.LocalSoftwareKeyboardController
-import androidx.compose.ui.unit.dp
-import org.lib3270j.ft.FTConfig
-
-@Composable
-fun FileTransferDialog(
-    onDismiss: () -> Unit,
-    onStartTransfer: (FTConfig) -> Unit
-) {
-    var hostFile by remember { mutableStateOf("") }
-    var localFile by remember { mutableStateOf("") }
-    var isReceive by remember { mutableStateOf(true) }
-    var isAscii by remember { mutableStateOf(true) }
-    var hostType by remember { mutableStateOf(FTConfig.HostType.TSO) }
-
-    val focusRequester = remember { FocusRequester() }
-    val keyboardController = LocalSoftwareKeyboardController.current
-
-    LaunchedEffect(Unit) {
-        kotlinx.coroutines.delay(150)
-        focusRequester.requestFocus()
-        keyboardController?.show()
-    }
-
-    AlertDialog(
-        onDismissRequest = onDismiss,
-        title = { Text("IND\$FILE File Transfer") },
-        text = {
-            Column(
-                modifier = Modifier
-                    .fillMaxWidth()
-                    .padding(vertical = 4.dp),
-                verticalArrangement = Arrangement.spacedBy(8.dp)
-            ) {
-                OutlinedTextField(
-                    value = hostFile,
-                    onValueChange = { hostFile = it },
-                    label = { Text("Host File Name") },
-                    singleLine = true,
-                    modifier = Modifier
-                        .fillMaxWidth()
-                        .focusRequester(focusRequester)
-                )
-
-                OutlinedTextField(
-                    value = localFile,
-                    onValueChange = { localFile = it },
-                    label = { Text("Local File Path") },
-                    singleLine = true,
-                    modifier = Modifier.fillMaxWidth()
-                )
-
-                Row(
-                    modifier = Modifier.fillMaxWidth(),
-                    horizontalArrangement = Arrangement.SpaceBetween,
-                    verticalAlignment = Alignment.CenterVertically
-                ) {
-                    Text("Direction:")
-                    Row {
-                        FilterChip(
-                            selected = isReceive,
-                            onClick = { isReceive = true },
-                            label = { Text("Receive (GET)") }
-                        )
-                        Spacer(modifier = Modifier.width(4.dp))
-                        FilterChip(
-                            selected = !isReceive,
-                            onClick = { isReceive = false },
-                            label = { Text("Send (PUT)") }
-                        )
-                    }
-                }
-
-                Row(
-                    modifier = Modifier.fillMaxWidth(),
-                    horizontalArrangement = Arrangement.SpaceBetween,
-                    verticalAlignment = Alignment.CenterVertically
-                ) {
-                    Text("Mode:")
-                    Row {
-                        FilterChip(
-                            selected = isAscii,
-                            onClick = { isAscii = true },
-                            label = { Text("ASCII") }
-                        )
-                        Spacer(modifier = Modifier.width(4.dp))
-                        FilterChip(
-                            selected = !isAscii,
-                            onClick = { isAscii = false },
-                            label = { Text("Binary") }
-                        )
-                    }
-                }
-
-                Row(
-                    modifier = Modifier.fillMaxWidth(),
-                    horizontalArrangement = Arrangement.SpaceBetween,
-                    verticalAlignment = Alignment.CenterVertically
-                ) {
-                    Text("Host:")
-                    Row {
-                        FTConfig.HostType.values().forEach { ht ->
-                            FilterChip(
-                                selected = (hostType == ht),
-                                onClick = { hostType = ht },
-                                label = { Text(ht.name) }
-                            )
-                            Spacer(modifier = Modifier.width(4.dp))
-                        }
-                    }
-                }
-            }
-        },
-        confirmButton = {
-            Button(
-                onClick = {
-                    if (hostFile.isNotBlank() && localFile.isNotBlank()) {
-                        val config = FTConfig().apply {
-                            setHostFilename(hostFile.trim())
-                            setLocalFilename(localFile.trim())
-                            setReceive(isReceive)
-                            setAscii(isAscii)
-                            setHostType(hostType)
-                        }
-                        onStartTransfer(config)
-                    }
-                }
-            ) {
-                Text("Start Transfer")
-            }
-        },
-        dismissButton = {
-            TextButton(onClick = onDismiss) {
-                Text("Cancel")
-            }
-        }
-    )
-}

src/main/java/org/pubvm/a3270/ui/FunctionKeyBar.kt

@@ -1,222 +0,0 @@
-package org.pubvm.a3270.ui
-
-import androidx.compose.foundation.background
-import androidx.compose.foundation.horizontalScroll
-import androidx.compose.foundation.layout.*
-import androidx.compose.foundation.rememberScrollState
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.*
-import androidx.compose.runtime.*
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.text.font.FontFamily
-import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
-import androidx.compose.ui.focus.focusProperties
-import org.lib3270j.ConnectionState
-import org.lib3270j.protocol.DS3270Constants.*
-
-@Composable
-fun TwoRowKeyBar(
-    connectionState: ConnectionState,
-    isShiftPressed: Boolean = false,
-    onClearShift: () -> Unit = {},
-    onConnectClick: () -> Unit,
-    onDisconnectClick: () -> Unit,
-    onFtClick: () -> Unit,
-    onSettingsClick: () -> Unit = {},
-    onSendAid: (Int) -> Unit,
-    onReset: () -> Unit,
-    onTab: () -> Unit,
-    onBackTab: () -> Unit,
-    onCursorLeft: () -> Unit = {},
-    onCursorUp: () -> Unit = {},
-    onCursorDown: () -> Unit = {},
-    onCursorRight: () -> Unit = {},
-    modifier: Modifier = Modifier
-) {
-    var menuExpanded by remember { mutableStateOf(false) }
-
-    Column(
-        modifier = modifier
-            .fillMaxWidth()
-            .background(Color(0xFF161719))
-    ) {
-        // Row 1: System & Quick Action Keys (Static 12-key row matching Row 2 columns)
-        Row(
-            modifier = Modifier
-                .fillMaxWidth()
-                .height(35.dp)
-                .padding(horizontal = 1.dp, vertical = 1.dp),
-            verticalAlignment = Alignment.CenterVertically
-        ) {
-            // 1. Menu Dropdown Button (Connect/Disconnect/FT/Settings)
-            Box(modifier = Modifier.weight(1f)) {
-                KeyButton(
-                    label = "⋮",
-                    color = Color(0xFF343A40),
-                    modifier = Modifier.fillMaxWidth(),
-                    innerPaddingHorizontal = 0.dp,
-                    onClick = { menuExpanded = true }
-                )
-                DropdownMenu(
-                    expanded = menuExpanded,
-                    onDismissRequest = { menuExpanded = false },
-                    modifier = Modifier.background(Color(0xFF2C2D30))
-                ) {
-                    if (!connectionState.isConnected()) {
-                        DropdownMenuItem(
-                            text = { Text("Connect", color = Color.White, fontWeight = FontWeight.SemiBold) },
-                            onClick = {
-                                menuExpanded = false
-                                onConnectClick()
-                            }
-                        )
-                    } else {
-                        DropdownMenuItem(
-                            text = { Text("Disconnect", color = Color(0xFFFF6B6B), fontWeight = FontWeight.SemiBold) },
-                            onClick = {
-                                menuExpanded = false
-                                onDisconnectClick()
-                            }
-                        )
-                        DropdownMenuItem(
-                            text = { Text("File Transfer (FT)", color = Color.White, fontWeight = FontWeight.SemiBold) },
-                            onClick = {
-                                menuExpanded = false
-                                onFtClick()
-                            }
-                        )
-                    }
-                    DropdownMenuItem(
-                        text = { Text("Settings", color = Color.White, fontWeight = FontWeight.SemiBold) },
-                        onClick = {
-                            menuExpanded = false
-                            onSettingsClick()
-                        }
-                    )
-                }
-            }
-
-            // 2. TAB / BTAB depending on Shift state
-            val tabLabel = if (isShiftPressed) "BTAB" else "TAB"
-            KeyButton(
-                label = tabLabel,
-                color = Color(0xFF1C7ED6),
-                modifier = Modifier.weight(1f),
-                innerPaddingHorizontal = 0.dp,
-                onClick = {
-                    if (isShiftPressed) {
-                        onBackTab()
-                        onClearShift()
-                    } else {
-                        onTab()
-                    }
-                }
-            )
-
-            // 3. RESET
-            KeyButton("RESET", Color(0xFFE67700), modifier = Modifier.weight(1f), innerPaddingHorizontal = 0.dp, onClick = onReset)
-
-            // 4. ENTER
-            KeyButton("ENTER", Color(0xFF2B8A3E), modifier = Modifier.weight(1f), innerPaddingHorizontal = 0.dp, onClick = { onSendAid(AID_ENTER) })
-
-            // 5. CLEAR
-            KeyButton("CLEAR", Color(0xFFC92A2A), modifier = Modifier.weight(1f), innerPaddingHorizontal = 0.dp, onClick = { onSendAid(AID_CLEAR) })
-
-            // 6. PA1
-            KeyButton("PA1", Color(0xFF495057), modifier = Modifier.weight(1f), innerPaddingHorizontal = 0.dp, onClick = { onSendAid(AID_PA1) })
-
-            // 7. PA2
-            KeyButton("PA2", Color(0xFF495057), modifier = Modifier.weight(1f), innerPaddingHorizontal = 0.dp, onClick = { onSendAid(AID_PA2) })
-
-            // 8. PA3
-            KeyButton("PA3", Color(0xFF495057), modifier = Modifier.weight(1f), innerPaddingHorizontal = 0.dp, onClick = { onSendAid(AID_PA3) })
-
-            // 9. Left Navigation
-            KeyButton("←", Color(0xFF343A40), modifier = Modifier.weight(1f), innerPaddingHorizontal = 0.dp, onClick = onCursorLeft)
-
-            // 10. Up Navigation
-            KeyButton("↑", Color(0xFF343A40), modifier = Modifier.weight(1f), innerPaddingHorizontal = 0.dp, onClick = onCursorUp)
-
-            // 11. Down Navigation
-            KeyButton("↓", Color(0xFF343A40), modifier = Modifier.weight(1f), innerPaddingHorizontal = 0.dp, onClick = onCursorDown)
-
-            // 12. Right Navigation
-            KeyButton("→", Color(0xFF343A40), modifier = Modifier.weight(1f), innerPaddingHorizontal = 0.dp, onClick = onCursorRight)
-        }
-
-        Spacer(modifier = Modifier.height(1.dp).fillMaxWidth().background(Color(0xFF2C2D30)))
-
-        // Row 2: PF Keys (F1-F12 when Shift is off; F13-F24 when Shift is down) - Non-scrolling, full width
-        Row(
-            modifier = Modifier
-                .fillMaxWidth()
-                .height(35.dp)
-                .padding(horizontal = 1.dp, vertical = 1.dp),
-            verticalAlignment = Alignment.CenterVertically
-        ) {
-            val pfAids = intArrayOf(
-                AID_PF1, AID_PF2, AID_PF3, AID_PF4, AID_PF5, AID_PF6,
-                AID_PF7, AID_PF8, AID_PF9, AID_PF10, AID_PF11, AID_PF12,
-                AID_PF13, AID_PF14, AID_PF15, AID_PF16, AID_PF17, AID_PF18,
-                AID_PF19, AID_PF20, AID_PF21, AID_PF22, AID_PF23, AID_PF24
-            )
-
-            val startPf = if (isShiftPressed) 13 else 1
-            val endPf = if (isShiftPressed) 24 else 12
-
-            for (i in startPf..endPf) {
-                val aid = pfAids[i - 1]
-                KeyButton(
-                    label = "F$i",
-                    color = Color(0xFF364FC7),
-                    modifier = Modifier.weight(1f),
-                    innerPaddingHorizontal = 0.dp,
-                    onClick = {
-                        onSendAid(aid)
-                        if (isShiftPressed) {
-                            onClearShift()
-                        }
-                    }
-                )
-            }
-        }
-    }
-}
-
-@Composable
-private fun KeyButton(
-    label: String,
-    color: Color,
-    onClick: () -> Unit,
-    modifier: Modifier = Modifier,
-    innerPaddingHorizontal: androidx.compose.ui.unit.Dp = 0.dp
-) {
-    Surface(
-        onClick = onClick,
-        shape = RoundedCornerShape(4.dp),
-        color = color,
-        shadowElevation = 1.dp,
-        modifier = modifier
-            .padding(horizontal = 1.dp, vertical = 1.dp)
-            .height(31.dp)
-            .focusProperties { canFocus = false }
-    ) {
-        Box(
-            contentAlignment = Alignment.Center,
-            modifier = Modifier.padding(horizontal = innerPaddingHorizontal)
-        ) {
-            Text(
-                text = label,
-                color = Color.White,
-                fontSize = 10.sp,
-                fontFamily = FontFamily.Monospace,
-                fontWeight = FontWeight.Bold,
-                maxLines = 1
-            )
-        }
-    }
-}

src/main/java/org/pubvm/a3270/ui/OiaStatusBar.kt

@@ -1,106 +0,0 @@
-package org.pubvm.a3270.ui
-
-import androidx.compose.foundation.background
-import androidx.compose.foundation.layout.*
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.Surface
-import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.text.font.FontFamily
-import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
-import org.lib3270j.ConnectionState
-
-@Composable
-fun OiaStatusBar(
-    connectionState: ConnectionState,
-    currentHost: String,
-    isKeyboardLocked: Boolean,
-    oiaText: String,
-    cursorAddr: Int,
-    rows: Int,
-    cols: Int,
-    modifier: Modifier = Modifier
-) {
-    val row = if (cols > 0) (cursorAddr / cols) + 1 else 1
-    val col = if (cols > 0) (cursorAddr % cols) + 1 else 1
-    val posStr = String.format("%02d/%02d", row, col)
-
-    val hostText = if (currentHost.isNotBlank()) currentHost else oiaText
-
-    val lockStatusText = if (!connectionState.isConnected()) {
-        "OFFLINE"
-    } else if (isKeyboardLocked) {
-        "X SYSTEM"
-    } else {
-        "READY"
-    }
-
-    val lockStatusColor = if (!connectionState.isConnected()) {
-        Color(0xFF868E96)
-    } else if (isKeyboardLocked) {
-        Color(0xFFFF6B6B) // Red for locked
-    } else {
-        Color(0xFF51CF66) // Green for ready
-    }
-
-    Row(
-        modifier = modifier
-            .fillMaxWidth()
-            .height(26.dp)
-            .background(Color(0xFF161719))
-            .padding(horizontal = 8.dp),
-        verticalAlignment = Alignment.CenterVertically,
-        horizontalArrangement = Arrangement.SpaceBetween
-    ) {
-        // Connected Host & Status Indicator
-        Row(
-            verticalAlignment = Alignment.CenterVertically,
-            modifier = Modifier.weight(1f)
-        ) {
-            Box(
-                modifier = Modifier
-                    .size(8.dp)
-                    .background(if (connectionState.isConnected()) Color(0xFF51CF66) else Color(0xFF868E96))
-            )
-            Spacer(modifier = Modifier.width(6.dp))
-            Text(
-                text = hostText,
-                color = Color.White,
-                fontSize = 11.sp,
-                fontFamily = FontFamily.Monospace,
-                fontWeight = FontWeight.Bold,
-                maxLines = 1
-            )
-        }
-
-        // Terminal Keyboard Lock Status Badge (X SYSTEM vs READY)
-        Surface(
-            color = lockStatusColor.copy(alpha = 0.2f),
-            shape = RoundedCornerShape(4.dp),
-            modifier = Modifier.padding(horizontal = 4.dp)
-        ) {
-            Text(
-                text = lockStatusText,
-                color = lockStatusColor,
-                fontSize = 10.sp,
-                fontFamily = FontFamily.Monospace,
-                fontWeight = FontWeight.Bold,
-                modifier = Modifier.padding(horizontal = 6.dp, vertical = 2.dp)
-            )
-        }
-
-        // Cursor Position
-        Text(
-            text = "R$posStr",
-            color = Color(0xFF22B8CF),
-            fontSize = 11.sp,
-            fontFamily = FontFamily.Monospace,
-            fontWeight = FontWeight.Bold
-        )
-    }
-}

src/main/java/org/pubvm/a3270/ui/SettingsDialog.kt

@@ -1,132 +0,0 @@
-package org.pubvm.a3270.ui
-
-import androidx.compose.foundation.layout.*
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.*
-import androidx.compose.runtime.*
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
-import androidx.compose.ui.window.Dialog
-
-@Composable
-fun SettingsDialog(
-    initialMaskHiddenInput: Boolean,
-    initialCursorBlink: Boolean,
-    onDismiss: () -> Unit,
-    onSave: (maskHiddenInput: Boolean, cursorBlink: Boolean) -> Unit
-) {
-    var maskHiddenInput by remember { mutableStateOf(initialMaskHiddenInput) }
-    var cursorBlink by remember { mutableStateOf(initialCursorBlink) }
-
-    Dialog(onDismissRequest = onDismiss) {
-        Card(
-            shape = RoundedCornerShape(12.dp),
-            colors = CardDefaults.cardColors(containerColor = Color(0xFF1E1E1E)),
-            modifier = Modifier
-                .fillMaxWidth()
-                .padding(16.dp)
-        ) {
-            Column(
-                modifier = Modifier
-                    .fillMaxWidth()
-                    .padding(20.dp)
-            ) {
-                Text(
-                    text = "Terminal Settings",
-                    fontSize = 18.sp,
-                    fontWeight = FontWeight.Bold,
-                    color = Color.White
-                )
-
-                Spacer(modifier = Modifier.height(16.dp))
-
-                // Setting 1: Mask Protected/Hidden Input with '*'
-                Row(
-                    modifier = Modifier.fillMaxWidth(),
-                    verticalAlignment = Alignment.CenterVertically,
-                    horizontalArrangement = Arrangement.SpaceBetween
-                ) {
-                    Column(modifier = Modifier.weight(1f).padding(end = 12.dp)) {
-                        Text(
-                            text = "Show '*' for Hidden Fields",
-                            fontSize = 14.sp,
-                            fontWeight = FontWeight.SemiBold,
-                            color = Color.White
-                        )
-                        Text(
-                            text = "Display asterisks for typed characters in non-display / password fields rather than blank spaces.",
-                            fontSize = 12.sp,
-                            color = Color.LightGray
-                        )
-                    }
-                    Switch(
-                        checked = maskHiddenInput,
-                        onCheckedChange = { maskHiddenInput = it },
-                        colors = SwitchDefaults.colors(
-                            checkedThumbColor = Color.White,
-                            checkedTrackColor = Color(0xFF2B8A3E)
-                        )
-                    )
-                }
-
-                Spacer(modifier = Modifier.height(16.dp))
-                HorizontalDivider(color = Color(0xFF2C2D30))
-                Spacer(modifier = Modifier.height(16.dp))
-
-                // Setting 2: Blinking Cursor
-                Row(
-                    modifier = Modifier.fillMaxWidth(),
-                    verticalAlignment = Alignment.CenterVertically,
-                    horizontalArrangement = Arrangement.SpaceBetween
-                ) {
-                    Column(modifier = Modifier.weight(1f).padding(end = 12.dp)) {
-                        Text(
-                            text = "Blinking Cursor",
-                            fontSize = 14.sp,
-                            fontWeight = FontWeight.SemiBold,
-                            color = Color.White
-                        )
-                        Text(
-                            text = "Blink the terminal cursor to clearly indicate current screen position.",
-                            fontSize = 12.sp,
-                            color = Color.LightGray
-                        )
-                    }
-                    Switch(
-                        checked = cursorBlink,
-                        onCheckedChange = { cursorBlink = it },
-                        colors = SwitchDefaults.colors(
-                            checkedThumbColor = Color.White,
-                            checkedTrackColor = Color(0xFF2B8A3E)
-                        )
-                    )
-                }
-
-                Spacer(modifier = Modifier.height(24.dp))
-
-                // Action Buttons
-                Row(
-                    modifier = Modifier.fillMaxWidth(),
-                    horizontalArrangement = Arrangement.End
-                ) {
-                    TextButton(onClick = onDismiss) {
-                        Text("Cancel", color = Color.LightGray)
-                    }
-                    Spacer(modifier = Modifier.width(8.dp))
-                    Button(
-                        onClick = {
-                            onSave(maskHiddenInput, cursorBlink)
-                        },
-                        colors = ButtonDefaults.buttonColors(containerColor = Color(0xFF2B8A3E))
-                    ) {
-                        Text("Save", color = Color.White)
-                    }
-                }
-            }
-        }
-    }
-}

src/test/java/haus/nightmare/a3270/CodePageAndStorageTest.kt

@@ -0,0 +1,109 @@
+package haus.nightmare.a3270
+
+import haus.nightmare.a3270.storage.SavedHost
+import haus.nightmare.lib3270j.charset.CodePageRegistry
+import haus.nightmare.lib3270j.charset.EbcdicTranslator
+import haus.nightmare.lib3270j.TerminalModel
+import haus.nightmare.lib3270j.screen.ScreenBuffer
+import org.junit.Assert.*
+import org.junit.Test
+import java.util.UUID
+
+class CodePageAndStorageTest {
+
+    @Test
+    fun testSavedHostCodePageSerialization() {
+        val host = SavedHost(
+            id = UUID.randomUUID().toString(),
+            name = "Test Mainframe",
+            host = "192.168.1.100",
+            port = 23,
+            model = 4,
+            luName = "LU3270",
+            autoConnect = true,
+            hostType = "TSO",
+            useTls = true,
+            tlsVerifyCert = false,
+            tn3270e = true,
+            graphicsMode = "BOTH",
+            codePage = "1047",
+            proxyType = "SOCKS5",
+            proxyHost = "proxy.example.com",
+            proxyPort = 1080,
+            proxyUsername = "testuser",
+            proxyPassword = "secretpassword"
+        )
+
+        val json = host.toJson()
+        assertEquals("1047", json.getString("codePage"))
+        assertEquals("Test Mainframe", json.getString("name"))
+        assertTrue(json.getBoolean("autoConnect"))
+        assertEquals("SOCKS5", json.getString("proxyType"))
+        assertEquals("proxy.example.com", json.getString("proxyHost"))
+        assertEquals(1080, json.getInt("proxyPort"))
+        assertEquals("testuser", json.getString("proxyUsername"))
+        assertEquals("secretpassword", json.getString("proxyPassword"))
+
+        val deserialized = SavedHost.fromJson(json)
+        assertEquals(host.id, deserialized.id)
+        assertEquals(host.name, deserialized.name)
+        assertEquals(host.host, deserialized.host)
+        assertEquals(host.port, deserialized.port)
+        assertEquals(host.model, deserialized.model)
+        assertEquals(host.codePage, deserialized.codePage)
+        assertEquals(host.graphicsMode, deserialized.graphicsMode)
+        assertEquals(host.proxyType, deserialized.proxyType)
+        assertEquals(host.proxyHost, deserialized.proxyHost)
+        assertEquals(host.proxyPort, deserialized.proxyPort)
+        assertEquals(host.proxyUsername, deserialized.proxyUsername)
+        assertEquals(host.proxyPassword, deserialized.proxyPassword)
+    }
+
+    @Test
+    fun testSavedHostDefaultCodePageFallback() {
+        // Old JSON without codePage or proxy fields
+        val json = org.json.JSONObject().apply {
+            put("name", "Legacy")
+            put("host", "mvs.local")
+        }
+        val deserialized = SavedHost.fromJson(json)
+        assertEquals("037", deserialized.codePage)
+        assertEquals("NONE", deserialized.proxyType)
+        assertEquals("", deserialized.proxyHost)
+        assertEquals(0, deserialized.proxyPort)
+    }
+
+    @Test
+    fun testCodePageRegistryResolution() {
+        val cp037 = CodePageRegistry.getCodePage("037")
+        assertNotNull(cp037)
+        assertEquals("037", cp037.codePageId)
+
+        val cp1047 = CodePageRegistry.getCodePage("1047")
+        assertNotNull(cp1047)
+        assertEquals("1047", cp1047.codePageId)
+
+        val cp930 = CodePageRegistry.getCodePage("930")
+        assertNotNull(cp930)
+        assertTrue(cp930.isDBCS)
+
+        val cp1140 = CodePageRegistry.getCodePage("1140")
+        assertNotNull(cp1140)
+    }
+
+    @Test
+    fun testEbcdicTranslatorCodePageSwitching() {
+        val translator = EbcdicTranslator("037")
+        assertEquals("037", translator.codePageId)
+
+        val translator1047 = EbcdicTranslator("1047")
+        assertEquals("1047", translator1047.codePageId)
+
+        val model = TerminalModel.IBM_3279_2
+        val sb = ScreenBuffer(model, translator)
+        assertEquals('A', translator.ebcdicToUnicode(0xC1))
+        sb.getCell(0).ec = 0xC1.toByte()
+        sb.translateToUnicode()
+        assertEquals('A', sb.getCell(0).ucs4)
+    }
+}

src/test/java/haus/nightmare/a3270/EclAndSearchTest.kt

@@ -0,0 +1,102 @@
+package haus.nightmare.a3270
+
+import haus.nightmare.lib3270j.TerminalModel
+import haus.nightmare.lib3270j.charset.EbcdicTranslator
+import haus.nightmare.lib3270j.ecl.ECLConstants
+import haus.nightmare.lib3270j.ecl.ECLFieldList
+import haus.nightmare.lib3270j.ecl.ECLPS
+import haus.nightmare.lib3270j.protocol.DS3270Constants.*
+import haus.nightmare.lib3270j.screen.ScreenBuffer
+import org.junit.Assert.*
+import org.junit.Before
+import org.junit.Test
+
+class EclAndSearchTest {
+
+    private lateinit var screenBuffer: ScreenBuffer
+    private lateinit var translator: EbcdicTranslator
+    private lateinit var inputProcessor: haus.nightmare.lib3270j.input.InputProcessor
+    private lateinit var ps: ECLPS
+    private lateinit var fieldList: ECLFieldList
+
+    @Before
+    fun setUp() {
+        val model = TerminalModel.IBM_3279_2 // 24x80
+        translator = EbcdicTranslator()
+        screenBuffer = ScreenBuffer(model, translator)
+        inputProcessor = haus.nightmare.lib3270j.input.InputProcessor(screenBuffer, translator, null)
+        ps = ECLPS(screenBuffer, inputProcessor, translator)
+        fieldList = ps.fieldList
+    }
+
+    @Test
+    fun testPresentationSpaceSearchForwardAndBackward() {
+        val text = "USERID ===> IBMUSER"
+        for (i in text.indices) {
+            screenBuffer.getCell(100 + i).ucs4 = text[i]
+            screenBuffer.getCell(100 + i).ec = translator.unicodeToEbcdic(text[i]).toByte()
+        }
+
+        // Search Forward for "IBMUSER" from row 0 col 0
+        val foundPos = ps.searchString("IBMUSER", 0, 0, ECLConstants.SEARCH_FORWARD, true)
+        assertEquals(100 + text.indexOf("IBMUSER"), foundPos)
+
+        // Case-sensitive search failure
+        val notFound = ps.searchString("ibmuser", 0, 0, ECLConstants.SEARCH_FORWARD, false)
+        assertEquals(-1, notFound)
+
+        // Case-insensitive search match
+        val foundCaseInsensitive = ps.searchString("ibmuser", 0, 0, ECLConstants.SEARCH_FORWARD, true)
+        assertEquals(100 + text.indexOf("IBMUSER"), foundCaseInsensitive)
+
+        // Search Backward from bottom of screen
+        val foundBackward = ps.searchString("USERID", 23, 79, ECLConstants.SEARCH_BACKWARD, true)
+        assertEquals(100, foundBackward)
+    }
+
+    @Test
+    fun testFieldListExtractionAndFlags() {
+        // Position 0: Protected label
+        screenBuffer.setCellFA(0, (FA_PRINTABLE or FA_PROTECT).toByte())
+        val label = "COMMAND ===>"
+        for (i in label.indices) {
+            screenBuffer.getCell(1 + i).ucs4 = label[i]
+            screenBuffer.getCell(1 + i).ec = translator.unicodeToEbcdic(label[i]).toByte()
+        }
+
+        // Position 20: Unprotected input field with MDT
+        screenBuffer.setCellFA(20, (FA_PRINTABLE or FA_MODIFY).toByte())
+        val cmd = "TSO TEST"
+        for (i in cmd.indices) {
+            screenBuffer.getCell(21 + i).ucs4 = cmd[i]
+            screenBuffer.getCell(21 + i).ec = translator.unicodeToEbcdic(cmd[i]).toByte()
+        }
+
+        // Position 40: Hidden field (zero intensity)
+        screenBuffer.setCellFA(40, (FA_PRINTABLE or FA_PROTECT or FA_INT_ZERO_NSEL).toByte())
+
+        fieldList.refresh()
+        val fields = fieldList.fields
+        assertEquals(3, fields.size)
+
+        // Field 0: Label
+        val f0 = fields[0]
+        assertTrue(f0.isProtected)
+        assertFalse(f0.isModified)
+        assertEquals(0, f0.start)
+        assertEquals(1, f0.dataStart)
+        assertTrue(f0.text.startsWith("COMMAND ===>"))
+
+        // Field 1: Input command
+        val f1 = fields[1]
+        assertFalse(f1.isProtected)
+        assertTrue(f1.isModified)
+        assertEquals(20, f1.start)
+        assertEquals(21, f1.dataStart)
+        assertTrue(f1.text.startsWith("TSO TEST"))
+
+        // Field 2: Hidden field
+        val f2 = fields[2]
+        assertTrue(f2.isHidden)
+    }
+}

src/test/java/haus/nightmare/a3270/GraphicsAndSysReqTest.kt

@@ -0,0 +1,178 @@
+package haus.nightmare.a3270
+
+import haus.nightmare.lib3270j.ConnectionConfig
+import haus.nightmare.lib3270j.ConnectionState
+import haus.nightmare.lib3270j.TerminalModel
+import haus.nightmare.lib3270j.charset.EbcdicTranslator
+import haus.nightmare.lib3270j.datastream.DataStreamProcessor
+import haus.nightmare.lib3270j.graphics.GocaDecoder
+import haus.nightmare.lib3270j.graphics.GraphicsPlane
+import haus.nightmare.lib3270j.input.InputProcessor
+import haus.nightmare.lib3270j.protocol.DS3270Constants.*
+import haus.nightmare.lib3270j.protocol.TelnetConstants.*
+import haus.nightmare.lib3270j.protocol.TN3270EConstants.*
+import haus.nightmare.lib3270j.screen.ScreenBuffer
+import haus.nightmare.lib3270j.telnet.TelnetConnection
+import haus.nightmare.lib3270j.telnet.TelnetFSM
+import org.junit.Assert.*
+import org.junit.Before
+import org.junit.Test
+import java.io.ByteArrayOutputStream
+import java.util.ArrayList
+import java.util.concurrent.atomic.AtomicReference
+
+class GraphicsAndSysReqTest {
+
+    private lateinit var screenBuffer: ScreenBuffer
+    private lateinit var translator: EbcdicTranslator
+    private lateinit var graphicsPlane: GraphicsPlane
+    private lateinit var gocaDecoder: GocaDecoder
+
+    private class MockConnection(config: ConnectionConfig, fsm: TelnetFSM) : TelnetConnection(config, fsm) {
+        val sentData: MutableList<ByteArray> = ArrayList()
+
+        override fun sendRaw(data: ByteArray) {
+            sentData.add(data.clone())
+        }
+
+        override fun sendRaw(data: ByteArray, offset: Int, length: Int) {
+            val b = ByteArray(length)
+            System.arraycopy(data, offset, b, 0, length)
+            sentData.add(b)
+        }
+    }
+
+    @Before
+    fun setUp() {
+        val model = TerminalModel.IBM_3279_2 // 24x80
+        translator = EbcdicTranslator()
+        screenBuffer = ScreenBuffer(model, translator)
+        graphicsPlane = GraphicsPlane(800, 600)
+        gocaDecoder = GocaDecoder(graphicsPlane)
+    }
+
+    @Test
+    fun testScreenBufferSetCursorPosition() {
+        screenBuffer.setCursorPosition(5, 10)
+        assertEquals(5 * 80 + 10, screenBuffer.cursorAddress)
+        assertEquals(5, screenBuffer.cursorRow)
+        assertEquals(10, screenBuffer.cursorCol)
+
+        // Clamping check
+        screenBuffer.setCursorPosition(-5, -10)
+        assertEquals(0, screenBuffer.cursorAddress)
+
+        screenBuffer.setCursorPosition(100, 200)
+        assertEquals(23 * 80 + 79, screenBuffer.cursorAddress)
+    }
+
+    @Test
+    fun testGraphicsCursorFramingOnSendAid() {
+        screenBuffer.erase(false)
+        screenBuffer.setCellFA(0, (FA_PRINTABLE or FA_MODIFY).toByte())
+        screenBuffer.getCell(1).ec = 0xC1.toByte() // 'A'
+        screenBuffer.setCellFA(5, (FA_PRINTABLE or FA_PROTECT).toByte())
+        screenBuffer.cursorAddress = 2
+
+        gocaDecoder.isGraphicsCursorActive = true
+        gocaDecoder.setGraphicCursorPosition(200, -100)
+
+        val sentRef = AtomicReference<ByteArray>()
+        val inputProcessor = object : InputProcessor(screenBuffer, translator, null) {
+            override fun sendAidResponse(data: ByteArray) {
+                sentRef.set(data)
+            }
+        }
+        inputProcessor.gocaDecoder = gocaDecoder
+
+        inputProcessor.sendAid(AID_ENTER)
+
+        val result = sentRef.get()
+        assertNotNull(result)
+        // Expected: AID_SF (0x88) + SF(56 bytes) + AID_ENTER(0x7D) + CursorAddr(2) + SBA(1) + FieldAddr(2) + Data 'A'(1) = 64 bytes
+        assertEquals(64, result.size)
+        assertEquals(AID_SF.toByte(), result[0])
+        assertEquals(0x00.toByte(), result[1])
+        assertEquals(0x34.toByte(), result[2]) // SF len 52
+        assertEquals(0x0F.toByte(), result[3])
+        assertEquals(0x0F.toByte(), result[4])
+
+        // Coordinates at index 25, 27
+        val gx = ((result[25].toInt() and 0xFF) shl 8) or (result[26].toInt() and 0xFF)
+        val gy = ((result[27].toInt() and 0xFF) shl 8) or (result[28].toInt() and 0xFF)
+        assertEquals(200, gx.toShort().toInt())
+        assertEquals(-100, gy.toShort().toInt())
+
+        // Trailing AID at index 57
+        assertEquals(AID_ENTER.toByte(), result[57])
+    }
+
+    @Test
+    fun testSysReqOutOfBandRoutingAndStateToggle() {
+        val config = ConnectionConfig("127.0.0.1", 23, TerminalModel.IBM_3279_2).apply {
+            isTn3270eEnabled = true
+        }
+        val dsProcessor = DataStreamProcessor(screenBuffer, translator)
+        val fsm = TelnetFSM(config, screenBuffer, dsProcessor)
+        val inputProcessor = InputProcessor(screenBuffer, translator, fsm)
+        dsProcessor.inputProcessor = inputProcessor
+        val connection = MockConnection(config, fsm)
+        fsm.setConnection(connection)
+        fsm.onConnected()
+
+        // 1. Complete TN3270E negotiation
+        fsm.feedBytes(byteArrayOf(IAC.toByte(), DO.toByte(), TELOPT_TN3270E.toByte()), 0, 3)
+        val devTypeIs = byteArrayOf(
+            IAC.toByte(), SB.toByte(), TELOPT_TN3270E.toByte(),
+            0x02, 0x04, 'I'.code.toByte(), 'B'.code.toByte(), 'M'.code.toByte(), '-'.code.toByte(),
+            '3'.code.toByte(), '2'.code.toByte(), '7'.code.toByte(), '9'.code.toByte(), '-'.code.toByte(),
+            '2'.code.toByte(), '-'.code.toByte(), 'E'.code.toByte(),
+            IAC.toByte(), SE.toByte()
+        )
+        fsm.feedBytes(devTypeIs, 0, devTypeIs.size)
+
+        val funcsReq = byteArrayOf(
+            IAC.toByte(), SB.toByte(), TELOPT_TN3270E.toByte(),
+            OP_FUNCTIONS.toByte(), OP_REQUEST.toByte(),
+            FUNC_BIND_IMAGE.toByte(), FUNC_RESPONSES.toByte(), FUNC_SYSREQ.toByte(),
+            IAC.toByte(), SE.toByte()
+        )
+        fsm.feedBytes(funcsReq, 0, funcsReq.size)
+
+        // BIND image
+        val bindPacket = ByteArray(EH_SIZE + 35).apply {
+            this[0] = DT_BIND_IMAGE.toByte()
+            this[4] = 1
+            this[EH_SIZE + 24] = 0x02
+        }
+        val bStream = ByteArrayOutputStream().apply {
+            write(bindPacket)
+            write(IAC)
+            write(EOR)
+        }
+        val bindBytes = bStream.toByteArray()
+        fsm.feedBytes(bindBytes, 0, bindBytes.size)
+
+        assertEquals(ConnectionState.CONNECTED_TN3270E, fsm.connectionState)
+        assertTrue(fsm.isTn3270eBound)
+        connection.sentData.clear()
+
+        // 2. Lock keyboard and send SYSREQ
+        inputProcessor.isKeyboardLocked = true
+        inputProcessor.sendAid(AID_SYSREQ)
+
+        assertFalse(inputProcessor.isKeyboardLocked)
+        var foundIacAo = false
+        for (pkt in connection.sentData) {
+            if (pkt.size == 2 && (pkt[0].toInt() and 0xFF) == IAC && (pkt[1].toInt() and 0xFF) == AO) {
+                foundIacAo = true
+            }
+        }
+        assertTrue("Expected IAC AO out-of-band telnet command", foundIacAo)
+        assertEquals(ConnectionState.CONNECTED_SSCP, fsm.connectionState)
+
+        // 3. Send second SYSREQ to toggle back
+        inputProcessor.sendAid(AID_SYSREQ)
+        assertEquals(ConnectionState.CONNECTED_TN3270E, fsm.connectionState)
+    }
+}

src/test/java/haus/nightmare/a3270/HardwareKeyboardInputTest.kt

@@ -0,0 +1,241 @@
+package haus.nightmare.a3270
+
+import org.junit.Assert.*
+import org.junit.Before
+import org.junit.Test
+import haus.nightmare.lib3270j.TerminalModel
+import haus.nightmare.lib3270j.charset.EbcdicTranslator
+import haus.nightmare.lib3270j.input.InputProcessor
+import haus.nightmare.lib3270j.protocol.DS3270Constants.*
+import haus.nightmare.lib3270j.screen.ScreenBuffer
+
+class HardwareKeyboardInputTest {
+
+    private lateinit var screenBuffer: ScreenBuffer
+    private lateinit var translator: EbcdicTranslator
+    private lateinit var inputProcessor: InputProcessor
+
+    @Before
+    fun setUp() {
+        val model = TerminalModel.IBM_3279_2 // 24x80
+        translator = EbcdicTranslator()
+        screenBuffer = ScreenBuffer(model, translator)
+        inputProcessor = InputProcessor(screenBuffer, translator, null)
+    }
+
+    @Test
+    fun testUnformattedTypingAndNavigation() {
+        assertEquals(0, screenBuffer.cursorAddress)
+
+        // Type alphanumeric string
+        val text = "LOGON APPLID(TSO)"
+        for (ch in text) {
+            inputProcessor.typeCharacter(ch)
+        }
+
+        assertEquals(text.length, screenBuffer.cursorAddress)
+        for (i in text.indices) {
+            assertEquals(text[i], screenBuffer.getCell(i).ucs4)
+        }
+
+        // Navigation
+        inputProcessor.cursorLeft()
+        assertEquals(text.length - 1, screenBuffer.cursorAddress)
+
+        inputProcessor.cursorRight()
+        assertEquals(text.length, screenBuffer.cursorAddress)
+
+        inputProcessor.cursorDown()
+        assertEquals(80 + text.length, screenBuffer.cursorAddress)
+
+        inputProcessor.cursorUp()
+        assertEquals(text.length, screenBuffer.cursorAddress)
+
+        inputProcessor.cursorHome()
+        assertEquals(0, screenBuffer.cursorAddress)
+    }
+
+    @Test
+    fun testBackspaceAndForwardDelete() {
+        val text = "HELLO"
+        for (ch in text) {
+            inputProcessor.typeCharacter(ch)
+        }
+        assertEquals(5, screenBuffer.cursorAddress)
+
+        // Backspace moves left and deletes char
+        inputProcessor.backspace()
+        assertEquals(4, screenBuffer.cursorAddress)
+    }
+
+    @Test
+    fun testFormattedFieldInputAndTab() {
+        // Create formatted screen with protected label and unprotected input field
+        // Position 0: Protected FA
+        screenBuffer.setCellFA(0, (FA_PRINTABLE or FA_PROTECT).toByte())
+        // Set label "USERID:" at positions 1..7
+        val label = "USERID:"
+        for (i in label.indices) {
+            screenBuffer.getCell(i + 1).ucs4 = label[i]
+            screenBuffer.getCell(i + 1).ec = translator.unicodeToEbcdic(label[i]).toByte()
+        }
+
+        // Position 10: Unprotected FA
+        screenBuffer.setCellFA(10, FA_PRINTABLE.toByte())
+
+        // Position 20: Protected FA
+        screenBuffer.setCellFA(20, (FA_PRINTABLE or FA_PROTECT).toByte())
+
+        // Position 30: Unprotected FA
+        screenBuffer.setCellFA(30, FA_PRINTABLE.toByte())
+
+        screenBuffer.cursorAddress = 11
+
+        // Type into first field
+        val userid = "IBMUSER"
+        for (ch in userid) {
+            inputProcessor.typeCharacter(ch)
+        }
+        assertEquals(18, screenBuffer.cursorAddress)
+        for (i in userid.indices) {
+            assertEquals(userid[i], screenBuffer.getCell(11 + i).ucs4)
+        }
+
+        // Tab should jump to position 31 (next unprotected field)
+        inputProcessor.tab()
+        assertEquals(31, screenBuffer.cursorAddress)
+
+        // BackTab should jump back to position 11
+        inputProcessor.backTab()
+        assertEquals(11, screenBuffer.cursorAddress)
+
+        // Home should jump to first unprotected field (position 11)
+        screenBuffer.cursorAddress = 50
+        inputProcessor.cursorHome()
+        assertEquals(11, screenBuffer.cursorAddress)
+    }
+
+    @Test
+    fun testFormattedDeleteCharAndEraseEof() {
+        // Position 0: Unprotected FA
+        screenBuffer.setCellFA(0, FA_PRINTABLE.toByte())
+        // Position 10: Protected FA
+        screenBuffer.setCellFA(10, (FA_PRINTABLE or FA_PROTECT).toByte())
+
+        screenBuffer.cursorAddress = 1
+        val text = "ABCDE"
+        for (ch in text) {
+            inputProcessor.typeCharacter(ch)
+        }
+
+        // Move cursor to 'C' at pos 3
+        screenBuffer.cursorAddress = 3
+        inputProcessor.deleteChar()
+
+        // "ABDE "
+        assertEquals('A', screenBuffer.getCell(1).ucs4)
+        assertEquals('B', screenBuffer.getCell(2).ucs4)
+        assertEquals('D', screenBuffer.getCell(3).ucs4)
+        assertEquals('E', screenBuffer.getCell(4).ucs4)
+        assertEquals(0, screenBuffer.getCell(5).ec.toInt())
+
+        // Erase EOF from pos 3
+        inputProcessor.eraseEof()
+        assertEquals('A', screenBuffer.getCell(1).ucs4)
+        assertEquals('B', screenBuffer.getCell(2).ucs4)
+        assertEquals(0, screenBuffer.getCell(3).ec.toInt())
+        assertEquals(0, screenBuffer.getCell(4).ec.toInt())
+    }
+
+    @Test
+    fun testPfKeyAids() {
+        val pfAids = intArrayOf(
+            AID_PF1, AID_PF2, AID_PF3, AID_PF4, AID_PF5, AID_PF6,
+            AID_PF7, AID_PF8, AID_PF9, AID_PF10, AID_PF11, AID_PF12,
+            AID_PF13, AID_PF14, AID_PF15, AID_PF16, AID_PF17, AID_PF18,
+            AID_PF19, AID_PF20, AID_PF21, AID_PF22, AID_PF23, AID_PF24
+        )
+
+        for (i in 1..24) {
+            val aid = pfAids[i - 1]
+            inputProcessor.sendAid(aid)
+            assertEquals(aid, inputProcessor.lastAid)
+            assertTrue(inputProcessor.isKeyboardLocked)
+            inputProcessor.reset()
+            assertFalse(inputProcessor.isKeyboardLocked)
+        }
+    }
+
+    @Test
+    fun testLightPenSelection() {
+        // Field 1 at pos 0: Selectable Unprotected (FA_INT_HIGH)
+        // Designator at pos 1: '?' (EBCDIC 0x6F)
+        val fa = (FA_PRINTABLE or FA_INT_HIGH_SEL).toByte()
+        assertTrue(haus.nightmare.lib3270j.protocol.DS3270Constants.faIsSelectable(fa.toInt() and 0xFF))
+
+        screenBuffer.setCellFA(0, fa)
+        screenBuffer.getCell(1).ucs4 = '?'
+        screenBuffer.getCell(1).ec = translator.unicodeToEbcdic('?').toByte()
+
+        // Field 2 at pos 20: Non-selectable (normal intensity)
+        screenBuffer.setCellFA(20, FA_PRINTABLE.toByte())
+        screenBuffer.getCell(21).ucs4 = '?'
+
+        // Selecting field 1 ('?') toggles designator to '>' and sets modified bit
+        val result1 = inputProcessor.lightPenSelect(1)
+        assertTrue(result1)
+        assertEquals('>', screenBuffer.getCell(1).ucs4)
+        assertEquals(0x6E.toByte(), screenBuffer.getCell(1).ec)
+        val fa1 = screenBuffer.getCell(0).fa.toInt() and 0xFF
+        assertTrue((fa1 and FA_MODIFY) != 0)
+
+        // Selecting field 1 again ('>') toggles back to '?' and clears modified bit
+        val result2 = inputProcessor.lightPenSelect(1)
+        assertTrue(result2)
+        assertEquals('?', screenBuffer.getCell(1).ucs4)
+        assertEquals(0x6F.toByte(), screenBuffer.getCell(1).ec)
+
+        // Selecting field 2 (non-selectable) returns false
+        val resultNonSelectable = inputProcessor.lightPenSelect(21)
+        assertFalse(resultNonSelectable)
+    }
+
+    @Test
+    fun testLightPenEnterSelection() {
+        // Field with '&' designator immediately sends AID_ENTER
+        val fa = (FA_PRINTABLE or FA_INT_HIGH_SEL).toByte()
+        screenBuffer.setCellFA(0, fa)
+        screenBuffer.getCell(1).ucs4 = '&'
+        screenBuffer.getCell(1).ec = translator.unicodeToEbcdic('&').toByte()
+
+        val result = inputProcessor.lightPenSelect(1)
+        assertTrue(result)
+        assertEquals(AID_ENTER, inputProcessor.lastAid)
+    }
+
+    @Test
+    fun testEraseInputAndAttention() {
+        // Position 0: Unprotected FA
+        screenBuffer.setCellFA(0, (FA_PRINTABLE or FA_MODIFY).toByte())
+        // Position 10: Protected FA
+        screenBuffer.setCellFA(10, (FA_PRINTABLE or FA_PROTECT).toByte())
+        // Position 20: Unprotected FA
+        screenBuffer.setCellFA(20, (FA_PRINTABLE or FA_MODIFY).toByte())
+
+        screenBuffer.getCell(1).ucs4 = 'X'
+        screenBuffer.getCell(1).ec = translator.unicodeToEbcdic('X').toByte()
+        screenBuffer.getCell(21).ucs4 = 'Y'
+        screenBuffer.getCell(21).ec = translator.unicodeToEbcdic('Y').toByte()
+
+        inputProcessor.eraseInput()
+
+        // Unprotected fields should be cleared and reset
+        assertEquals(0, screenBuffer.getCell(1).ec.toInt())
+        assertEquals(0, screenBuffer.getCell(21).ec.toInt())
+        assertEquals(1, screenBuffer.cursorAddress)
+
+        // Attention AID
+        inputProcessor.sendAid(AID_PA1)
+        assertEquals(AID_PA1, inputProcessor.lastAid)
+    }
+}

src/test/java/haus/nightmare/a3270/ScriptAndPrinterTest.kt

@@ -0,0 +1,67 @@
+package haus.nightmare.a3270
+
+import haus.nightmare.lib3270j.TerminalModel
+import haus.nightmare.lib3270j.charset.EbcdicTranslator
+import haus.nightmare.lib3270j.input.InputProcessor
+import haus.nightmare.lib3270j.printer.PrinterConfig
+import haus.nightmare.lib3270j.printer.PrinterConstants
+import haus.nightmare.lib3270j.protocol.DS3270Constants.*
+import haus.nightmare.lib3270j.screen.ScreenBuffer
+import org.junit.Assert.*
+import org.junit.Before
+import org.junit.Test
+
+class ScriptAndPrinterTest {
+
+    private lateinit var screenBuffer: ScreenBuffer
+    private lateinit var translator: EbcdicTranslator
+    private lateinit var inputProcessor: InputProcessor
+
+    @Before
+    fun setUp() {
+        val model = TerminalModel.IBM_3279_2
+        translator = EbcdicTranslator()
+        screenBuffer = ScreenBuffer(model, translator)
+        inputProcessor = InputProcessor(screenBuffer, translator, null)
+    }
+
+    @Test
+    fun testEmulateInputMnemonicTokens() {
+        // Position 0: Unprotected input field
+        screenBuffer.setCellFA(0, FA_PRINTABLE.toByte())
+        screenBuffer.cursorAddress = 1
+
+        inputProcessor.sendKeys("HELLO[enter]")
+        assertEquals('H', screenBuffer.getCell(1).ucs4)
+        assertEquals('E', screenBuffer.getCell(2).ucs4)
+        assertEquals('L', screenBuffer.getCell(3).ucs4)
+        assertEquals('L', screenBuffer.getCell(4).ucs4)
+        assertEquals('O', screenBuffer.getCell(5).ucs4)
+        assertEquals(AID_ENTER, inputProcessor.lastAid)
+
+        inputProcessor.reset()
+        inputProcessor.sendKeys("[pf3]")
+        assertEquals(AID_PF3, inputProcessor.lastAid)
+    }
+
+    @Test
+    fun testPrinterConfigParameters() {
+        val config = PrinterConfig("10.0.0.1", 992, "PRT01", true).apply {
+            associatedDisplayLuName = "DSP01"
+            codePage = "1047"
+            mpp = 132
+            mpl = 66
+            destinationType = PrinterConfig.DestinationType.MEMORY
+        }
+
+        assertEquals("10.0.0.1", config.host)
+        assertEquals(992, config.port)
+        assertEquals("PRT01", config.printerLuName)
+        assertEquals("DSP01", config.associatedDisplayLuName)
+        assertTrue(config.isUseTls)
+        assertEquals("1047", config.codePage)
+        assertEquals(132, config.mpp)
+        assertEquals(66, config.mpl)
+        assertEquals(PrinterConfig.DestinationType.MEMORY, config.destinationType)
+    }
+}