Dateien, die als Parameter übergeben werden, werden nach dem Start direkt geladen

barecode/.gitignore

@@ -0,0 +1,3 @@
+{src/
+build/
+BareCodeAUR

barecode/BareCode.desktop

@@ -0,0 +1,13 @@
+[Desktop Entry]
+Version=1.0
+Type=Application
+Name=BareCode
+GenericName=Code Editor
+Comment=Modularer Code-Editor für HTML, PHP, CSS und mehr
+Exec=BareCode %F
+Icon=barecode
+Terminal=false
+Categories=Development;TextEditor;
+MimeType=text/plain;text/html;text/css;text/x-php;text/x-csrc;text/x-chdr;text/x-c++src;text/x-c++hdr;
+Keywords=editor;code;html;php;css;c++;
+StartupWMClass=BareCode

barecode/BareCode.rc

@@ -0,0 +1 @@
+IDI_ICON1 ICON "resources/BareCode.ico"

barecode/CMakeLists.txt

@@ -0,0 +1,159 @@
+cmake_minimum_required(VERSION 3.16)
+
+project(BareCode
+    VERSION 1.2.0
+    DESCRIPTION "A modular code editor built with Qt6"
+    LANGUAGES CXX
+)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+set(CMAKE_AUTOUIC ON)
+
+# ---------------------------------------------------------------------------
+# Plattform-Erkennung
+# ---------------------------------------------------------------------------
+if(WIN32)
+    set(PLATFORM_WINDOWS TRUE)
+    add_compile_definitions(PLATFORM_WINDOWS)
+    set(CMAKE_WIN32_EXECUTABLE ON)
+elseif(CMAKE_SYSTEM_NAME STREQUAL "Haiku")
+    set(PLATFORM_HAIKU TRUE)
+    add_compile_definitions(PLATFORM_HAIKU)
+elseif(APPLE)
+    set(PLATFORM_MACOS TRUE)
+    add_compile_definitions(PLATFORM_MACOS)
+elseif(UNIX)
+    set(PLATFORM_LINUX TRUE)
+    add_compile_definitions(PLATFORM_LINUX)
+endif()
+
+# ---------------------------------------------------------------------------
+# Qt6
+# ---------------------------------------------------------------------------
+find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets Concurrent)
+qt_standard_project_setup()
+
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
+add_subdirectory(src)
+
+# ---------------------------------------------------------------------------
+# Übersetzungen — lrelease → .qm → ins Build-Verzeichnis
+# ---------------------------------------------------------------------------
+find_program(LRELEASE_EXECUTABLE
+    NAMES lrelease lrelease-qt6
+    HINTS "${Qt6_DIR}/../../../bin"
+    REQUIRED
+)
+
+set(TS_FILES
+    ${CMAKE_CURRENT_SOURCE_DIR}/translations/barecode_de.ts
+    ${CMAKE_CURRENT_SOURCE_DIR}/translations/barecode_en.ts
+)
+
+set(QM_FILES)
+foreach(TS_FILE ${TS_FILES})
+    get_filename_component(TS_NAME ${TS_FILE} NAME_WE)
+    set(QM_FILE "${CMAKE_CURRENT_BINARY_DIR}/translations/${TS_NAME}.qm")
+    add_custom_command(
+        OUTPUT  "${QM_FILE}"
+        COMMAND ${CMAKE_COMMAND} -E make_directory
+                "${CMAKE_CURRENT_BINARY_DIR}/translations"
+        COMMAND ${LRELEASE_EXECUTABLE} "${TS_FILE}" -qm "${QM_FILE}"
+        DEPENDS "${TS_FILE}"
+        COMMENT "lrelease: ${TS_NAME}.qm"
+        VERBATIM
+    )
+    list(APPEND QM_FILES "${QM_FILE}")
+endforeach()
+
+add_custom_target(BareCode_translations ALL DEPENDS ${QM_FILES})
+
+# ---------------------------------------------------------------------------
+# Resources
+# ---------------------------------------------------------------------------
+qt_add_resources(BARECODE_RESOURCES resources/resources.qrc)
+
+# ---------------------------------------------------------------------------
+# Executable
+# ---------------------------------------------------------------------------
+if(PLATFORM_WINDOWS)
+    qt_add_executable(BareCode main.cpp BareCode.rc ${BARECODE_RESOURCES})
+else()
+    qt_add_executable(BareCode main.cpp ${BARECODE_RESOURCES})
+endif()
+
+add_dependencies(BareCode BareCode_translations)
+
+target_link_libraries(BareCode PRIVATE
+    BareCode_Core
+    BareCode_Editor
+    BareCode_FileTree
+    BareCode_Highlighter
+    Qt6::Core
+    Qt6::Gui
+    Qt6::Widgets
+)
+
+target_include_directories(BareCode PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}/src
+)
+
+# ---------------------------------------------------------------------------
+# Installation
+# ---------------------------------------------------------------------------
+include(GNUInstallDirs)
+
+install(TARGETS BareCode
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+)
+
+install(FILES LICENSE
+    DESTINATION ${CMAKE_INSTALL_DATADIR}/licenses/barecode
+)
+
+# .qm-Dateien installieren
+install(FILES ${QM_FILES}
+    DESTINATION ${CMAKE_INSTALL_DATADIR}/BareCode/translations
+)
+
+if(PLATFORM_LINUX)
+    foreach(SIZE 16 32 48 64 128 256 512)
+        install(FILES resources/icon_${SIZE}.png
+            DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/${SIZE}x${SIZE}/apps
+            RENAME barecode.png
+        )
+    endforeach()
+    install(FILES BareCode.desktop
+        DESTINATION ${CMAKE_INSTALL_DATADIR}/applications
+    )
+endif()
+
+if(PLATFORM_HAIKU)
+    install(FILES resources/icon_256.png
+        DESTINATION ${CMAKE_INSTALL_DATADIR}/BareCode
+        RENAME BareCode.png
+    )
+    install(CODE "
+        execute_process(
+            COMMAND mimeset -f \"\$ENV{DESTDIR}${CMAKE_INSTALL_FULL_BINDIR}/BareCode\"
+            RESULT_VARIABLE _mimeset_result
+        )
+        if(NOT _mimeset_result EQUAL 0)
+            message(WARNING \"mimeset konnte nicht ausgeführt werden.\")
+        endif()
+    ")
+endif()
+
+if(PLATFORM_MACOS)
+    set_target_properties(BareCode PROPERTIES
+        MACOSX_BUNDLE TRUE
+        MACOSX_BUNDLE_BUNDLE_NAME "BareCode"
+        MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
+        MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION}
+    )
+endif()

barecode/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 Dany Thinnes / Projekt Hirnfrei
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+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 OR COPYRIGHT HOLDERS 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.

barecode/PKGBUILD

@@ -0,0 +1,36 @@
+# Maintainer: Dany Thinnes <dany@projekt-hirnfrei.de>
+# Projekt Hirnfrei - https://www.projekt-hirnfrei.de
+
+pkgname=barecode
+pkgver=1.2.0
+pkgrel=1
+pkgdesc="Schlanker modularer Code-Editor für HTML, PHP, CSS und C++"
+arch=('x86_64' 'aarch64')
+url="https://www.projekt-hirnfrei.de"
+license=('MIT')
+depends=('qt6-base')
+makedepends=('cmake' 'ninja')
+provides=('barecode')
+conflicts=('barecode-git')
+source=("$pkgname-$pkgver.tar.gz::https://git.projekt-hirnfrei.de/diabolus/BareCode/archive/v$pkgver.tar.gz")
+sha256sums=('SKIP')  # Nach erstem Download ersetzen: sha256sum barecode-1.1.0.tar.gz
+
+build() {
+    cd "BareCode"
+    cmake -B build \
+        -G Ninja \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_INSTALL_PREFIX=/usr \
+        -DCMAKE_SKIP_RPATH=ON
+    cmake --build build
+}
+
+check() {
+    :
+}
+
+package() {
+    cd "BareCode"
+    DESTDIR="$pkgdir" cmake --install build
+    install -Dm644 LICENSE "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+}

barecode/PKGBUILD-git

@@ -0,0 +1,43 @@
+# Maintainer: Dany Thinnes <dany@projekt-hirnfrei.de>
+# Projekt Hirnfrei - https://www.projekt-hirnfrei.de
+
+pkgname=barecode-git
+pkgver=1.1.0.r0.g0000000
+pkgrel=1
+pkgdesc="Schlanker modularer Code-Editor für HTML, PHP, CSS und C++ (Git-Version)"
+arch=('x86_64' 'aarch64')
+url="https://www.projekt-hirnfrei.de"
+license=('MIT')
+depends=('qt6-base')
+makedepends=('cmake' 'ninja' 'git')
+provides=('barecode')
+conflicts=('barecode')
+source=("$pkgname::git+https://git.projekt-hirnfrei.de/diabolus/BareCode.git")
+sha256sums=('SKIP')
+
+pkgver() {
+    cd "$pkgname"
+    git describe --long --tags 2>/dev/null \
+        | sed 's/^v//;s/\([^-]*-g\)/r\1/;s/-/./g' \
+        || printf "r%s.%s" "$(git rev-list --count HEAD)" "$(git rev-parse --short HEAD)"
+}
+
+build() {
+    cd "$pkgname"
+    cmake -B build \
+        -G Ninja \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_INSTALL_PREFIX=/usr \
+        -DCMAKE_SKIP_RPATH=ON
+    cmake --build build
+}
+
+check() {
+    :
+}
+
+package() {
+    cd "$pkgname"
+    DESTDIR="$pkgdir" cmake --install build
+    install -Dm644 LICENSE "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+}

barecode/README.md

@@ -0,0 +1,200 @@
+# BareCode
+
+**Schlanker, modularer Code-Editor für Web-Entwickler**  
+Version 1.2.0 — von **Dany Thinnes** | [Projekt Hirnfrei](https://www.projekt-hirnfrei.de) | [Discord](https://discord.projekt-hirnfrei.de)
+
+Entwickelt mit **C++17**, **Qt6** und **CMake**.  
+Kompiliert auf **Linux**, **Windows** und **Haiku**.
+
+---
+
+## Installation
+
+### Arch Linux / Manjaro (AUR)
+
+```bash
+# Mit yay
+yay -S barecode
+
+# Mit paru
+paru -S barecode
+
+# Immer aktuellster Git-Stand
+yay -S barecode-git
+```
+
+### Aus dem Quellcode bauen
+
+Siehe Abschnitt **Bauen** weiter unten.
+
+---
+
+## Features
+
+### Editor
+| Feature | Details |
+|---|---|
+| Syntax-Highlighting | HTML, PHP, CSS, C/C++ — inkl. mehrzeiliger Kommentare über Leerzeilen |
+| Tabs | Mehrere Dateien gleichzeitig, verschiebbar und schließbar |
+| Änderungsindikator | ● im Tab-Titel bei ungespeicherten Änderungen |
+| Zeilennummern | Eigener Gutter, aktuelle Zeile hervorgehoben |
+| Einrück-Führungslinien | Vertikale Linien wie in VS Code |
+| Klammerzugehörigkeit | Zusammengehörige Klammern werden grün hervorgehoben, fehlende rot |
+| Auto-Indent | Einrückungstiefe wird bei Enter übernommen |
+| Tab / Shift+Tab | Ein- und Ausrücken für einzelne Zeilen und Selektionen |
+| Smart Backspace | Springt zur vorherigen Tab-Stop-Position |
+| Farbvorschau | CSS-Farbwerte (#hex, rgb, hsl) werden inline angezeigt |
+| Farbauswahl | Klick auf das Farbquadrat öffnet einen Farbauswahl-Dialog |
+| Funktionssignatur | Tooltip mit Parametern beim Tippen von PHP-Funktionen |
+| Variablen-Popup | Vorschläge für $variablen beim Tippen (nur Anzeige, kein Autocomplete) |
+
+### Navigation
+| Feature | Details |
+|---|---|
+| Projektbaum | Linkes Panel — zeigt nur das gewählte Projektverzeichnis |
+| Neue Datei / Ordner | Rechtsklick im Dateibaum |
+| Doppelklick-Navigation | Doppelklick auf einen Funktionsnamen springt zur Definition |
+| Suchen & Ersetzen | Einzeln, Alle, In Auswahl, Regex, Live-Hervorhebung (Strg+F) |
+| In Dateien suchen | Rekursive Projektsuche mit Ergebnisliste (Strg+Shift+F) |
+
+### Projektanalyse
+| Feature | Details |
+|---|---|
+| Projektfunktionen | Alle definierten Funktionen als durchsuchbare Liste (Strg+Shift+P) |
+| Tote Funktionen | Analyse ungenutzter Funktionen mit Exclude-Verzeichnissen (Strg+Shift+T) |
+| Export | Analyseergebnisse als TXT exportieren |
+
+### Allgemein
+| Feature | Details |
+|---|---|
+| Speichern | Speichern, Speichern unter, Alles speichern |
+| Dark / Light Mode | Umschaltbar (Strg+Shift+D), wird gespeichert |
+| Session | Geöffnete Dateien und aktiver Tab werden wiederhergestellt |
+
+---
+
+## Tastaturkürzel
+
+| Aktion | Kürzel |
+|---|---|
+| Datei öffnen | Strg+O |
+| Neue Datei | Strg+N |
+| Projekt öffnen | Strg+Shift+O |
+| Speichern | Strg+S |
+| Speichern unter | Strg+Shift+A |
+| Alles speichern | Strg+Shift+S |
+| Suchen / Ersetzen | Strg+F |
+| In Dateien suchen | Strg+Shift+F |
+| Projektfunktionen | Strg+Shift+P |
+| Tote Funktionen | Strg+Shift+T |
+| Dark Mode | Strg+Shift+D |
+
+---
+
+## Projektstruktur
+
+```
+BareCode/
+├── CMakeLists.txt
+├── main.cpp
+├── LICENSE
+├── PKGBUILD              # Stabiles AUR-Paket
+├── PKGBUILD-git          # AUR-Paket (Git-Stand)
+├── BareCode.desktop      # Linux-Anwendungsmenü
+├── resources/
+│   ├── resources.qrc
+│   ├── icon_*.png
+│   └── php_functions.json
+└── src/
+    ├── core/             # MainWindow, ProjectManager, Settings,
+    │                     # ThemeManager, AboutDialog, IPlugin
+    ├── editor/           # EditorPanel, EditorTab, CodeEditor,
+    │                     # SearchPanel, FileSearchPanel,
+    │                     # ColorIndicator, SignatureHelper,
+    │                     # VariableCompleter, FunctionScanner,
+    │                     # FunctionIndex, FunctionListPanel,
+    │                     # FunctionListDialog, DeadCodeAnalyzer,
+    │                     # DeadCodeDialog
+    ├── filetree/         # FileTreePanel
+    └── highlighter/      # SyntaxHighlighter, HighlighterFactory
+```
+
+Jedes Unterverzeichnis kompiliert als eigene statische Bibliothek.
+
+---
+
+## Abhängigkeiten & Bauen
+
+### Linux
+
+**Ubuntu / Debian:**
+```bash
+sudo apt install cmake ninja-build qt6-base-dev qt6-base-dev-tools
+```
+
+**Arch / Manjaro:**
+```bash
+sudo pacman -S cmake ninja qt6-base
+```
+
+**Bauen:**
+```bash
+cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=Release
+cmake --build build
+./build/BareCode
+```
+
+**Installieren:**
+```bash
+sudo cmake --install build
+```
+
+---
+
+### Windows
+
+**Abhängigkeiten:**
+- [Qt6](https://www.qt.io/download) — Komponenten: Qt6 Base, Qt6 Concurrent
+- CMake ≥ 3.16
+- Visual Studio 2019 oder neuer
+
+```bat
+cmake -B build -G "Visual Studio 17 2022" -A x64
+cmake --build build --config Release
+```
+
+---
+
+### Haiku
+
+```bash
+pkgman install qt6_base qt6_base_devel
+cmake -B build -DCMAKE_BUILD_TYPE=Release
+cmake --build build -j$(nproc)
+./build/BareCode
+```
+
+> Getestet auf Haiku R1/beta5.
+
+---
+
+## Neue Sprache hinzufügen
+
+1. Subklasse von `SyntaxHighlighter` in `src/highlighter/` erstellen
+2. `m_rules` im Konstruktor befüllen (siehe `CppHighlighter` als Vorlage)
+3. Dateiendung in `HighlighterFactory.cpp` registrieren
+
+---
+
+## Lizenz
+
+MIT License — Copyright (c) 2025 Dany Thinnes / Projekt Hirnfrei
+
+---
+
+## Links
+
+- Website: [www.projekt-hirnfrei.de](https://www.projekt-hirnfrei.de)
+- Discord: [discord.projekt-hirnfrei.de](https://discord.projekt-hirnfrei.de)
+- Quellcode: [git.projekt-hirnfrei.de/diabolus/BareCode](https://git.projekt-hirnfrei.de/diabolus/BareCode)
+- AUR: [aur.archlinux.org/packages/barecode](https://aur.archlinux.org/packages/barecode)

barecode/barecode.desktop

@@ -0,0 +1,13 @@
+[Desktop Entry]
+Type=Application
+Name=BareCode
+GenericName=Code-Editor
+Comment=Modularer Code-Editor von Projekt Hirnfrei
+Exec=BareCode %F
+Icon=barecode
+Terminal=false
+Categories=Development;TextEditor;IDE;
+MimeType=text/plain;text/x-csrc;text/x-chdr;text/x-c++src;text/x-c++hdr;
+Keywords=editor;code;programmierung;entwicklung;
+StartupNotify=true
+StartupWMClass=BareCode

barecode/bauen.sh

@@ -0,0 +1,133 @@
+#!/bin/bash
+# ---------------------------------------------------------------------------
+# BareCode – Build-Skript
+# Verwendung: ./bauen.sh [release|debug|clean|install]
+# ---------------------------------------------------------------------------
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+cd "$SCRIPT_DIR"
+
+BUILD_TYPE="${1:-release}"
+BUILD_DIR="build"
+
+# Farben
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m'
+
+info()    { echo -e "${BLUE}==>${NC} $1"; }
+success() { echo -e "${GREEN}==>${NC} $1"; }
+warn()    { echo -e "${YELLOW}==>${NC} $1"; }
+error()   { echo -e "${RED}==>${NC} $1"; exit 1; }
+
+# ---------------------------------------------------------------------------
+# clean
+# ---------------------------------------------------------------------------
+if [ "$BUILD_TYPE" = "clean" ]; then
+    info "Build-Verzeichnis wird gelöscht…"
+    rm -rf "$BUILD_DIR"
+    success "Fertig."
+    exit 0
+fi
+
+# ---------------------------------------------------------------------------
+# Abhängigkeiten prüfen
+# ---------------------------------------------------------------------------
+info "Prüfe Abhängigkeiten…"
+
+command -v cmake   &>/dev/null || error "cmake nicht gefunden. Installation: sudo pacman -S cmake"
+command -v ninja   &>/dev/null || error "ninja nicht gefunden. Installation: sudo pacman -S ninja"
+command -v lrelease &>/dev/null || \
+command -v lrelease-qt6 &>/dev/null || \
+    error "lrelease nicht gefunden. Installation: sudo pacman -S qt6-tools"
+
+# Qt6 prüfen
+if ! pkg-config --exists Qt6Core 2>/dev/null; then
+    if ! cmake --find-package -DNAME=Qt6 -DCOMPILER_ID=GNU \
+               -DLANGUAGE=CXX -DMODE=EXIST &>/dev/null 2>&1; then
+        warn "Qt6 konnte nicht automatisch geprüft werden — cmake wird es versuchen."
+    fi
+fi
+
+success "Abhängigkeiten OK."
+
+# ---------------------------------------------------------------------------
+# CMake-Build-Typ
+# ---------------------------------------------------------------------------
+case "$BUILD_TYPE" in
+    release|Release)
+        CMAKE_BUILD_TYPE="Release"
+        ;;
+    debug|Debug)
+        CMAKE_BUILD_TYPE="Debug"
+        ;;
+    install)
+        CMAKE_BUILD_TYPE="Release"
+        ;;
+    *)
+        error "Unbekannter Build-Typ: '$BUILD_TYPE'. Erlaubt: release, debug, clean, install"
+        ;;
+esac
+
+# ---------------------------------------------------------------------------
+# Konfigurieren
+# ---------------------------------------------------------------------------
+info "Konfiguriere mit CMake (${CMAKE_BUILD_TYPE})…"
+
+cmake -B "$BUILD_DIR" \
+      -G Ninja \
+      -DCMAKE_BUILD_TYPE="$CMAKE_BUILD_TYPE" \
+      -DCMAKE_INSTALL_PREFIX=/usr \
+      -DCMAKE_EXPORT_COMPILE_COMMANDS=ON \
+      2>&1 || error "CMake-Konfiguration fehlgeschlagen."
+
+success "Konfiguration OK."
+
+# ---------------------------------------------------------------------------
+# Bauen
+# ---------------------------------------------------------------------------
+JOBS=$(nproc 2>/dev/null || sysctl -n hw.logicalcpu 2>/dev/null || echo 4)
+info "Baue mit $JOBS parallelen Jobs…"
+
+cmake --build "$BUILD_DIR" -j"$JOBS" 2>&1 || error "Build fehlgeschlagen."
+
+success "Build erfolgreich!"
+
+# ---------------------------------------------------------------------------
+# Installieren (optional)
+# ---------------------------------------------------------------------------
+if [ "$BUILD_TYPE" = "install" ]; then
+    info "Installiere nach /usr (sudo erforderlich)…"
+    sudo cmake --install "$BUILD_DIR" || error "Installation fehlgeschlagen."
+    success "BareCode wurde installiert."
+    echo ""
+    echo "  Starten: BareCode"
+    exit 0
+fi
+
+# ---------------------------------------------------------------------------
+# Fertig
+# ---------------------------------------------------------------------------
+BINARY="$BUILD_DIR/BareCode"
+if [ -f "$BINARY" ]; then
+    # .qm-Dateien neben die Binary kopieren damit sie gefunden werden
+    mkdir -p "$BUILD_DIR/translations"
+    if compgen -G "$BUILD_DIR/translations/barecode_*.qm" > /dev/null 2>&1; then
+        success "Übersetzungen bereits vorhanden."
+    else
+        # Aus dem cmake-Zwischenverzeichnis holen
+        find "$BUILD_DIR" -name "barecode_*.qm" -not -path "$BUILD_DIR/translations/*" \
+            -exec cp {} "$BUILD_DIR/translations/" \; 2>/dev/null || true
+    fi
+
+    echo ""
+    success "BareCode ist bereit:"
+    echo "  Starten:      ./$BINARY"
+    echo "  Installieren: ./bauen.sh install"
+    echo "  Debug-Build:  ./bauen.sh debug"
+    echo "  Aufräumen:    ./bauen.sh clean"
+fi

barecode/main.cpp

@@ -0,0 +1,106 @@
+#include <QApplication>
+#include <QIcon>
+#include <QTranslator>
+#include <QLocale>
+#include <QLibraryInfo>
+#include <QSettings>
+#include <QDir>
+#include <QCoreApplication>
+#include "core/MainWindow.h"
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+
+    app.setApplicationName("BareCode");
+    app.setApplicationVersion("1.2.0");
+    app.setOrganizationName("BareCode");
+
+    // Icon
+    QIcon appIcon;
+    appIcon.addFile(":/icon_16.png",  QSize(16,  16));
+    appIcon.addFile(":/icon_32.png",  QSize(32,  32));
+    appIcon.addFile(":/icon_48.png",  QSize(48,  48));
+    appIcon.addFile(":/icon_64.png",  QSize(64,  64));
+    appIcon.addFile(":/icon_128.png", QSize(128, 128));
+    appIcon.addFile(":/icon_256.png", QSize(256, 256));
+    appIcon.addFile(":/icon_512.png", QSize(512, 512));
+    app.setWindowIcon(appIcon);
+
+    // ---------------------------------------------------------------------------
+    // Übersetzung laden
+    // .qm-Dateien liegen im Unterverzeichnis "translations" neben der Binary
+    // oder unter /usr/share/BareCode/translations nach Installation
+    // ---------------------------------------------------------------------------
+    QSettings settings(QSettings::IniFormat, QSettings::UserScope,
+                       "BareCode", "BareCode");
+    QString locale = settings.value("language/locale", QString()).toString();
+
+    if (locale.isEmpty())
+    {
+        locale = QLocale::system().name(); // z.B. "de_DE", "en_US"
+    }
+
+    const QString shortLocale = locale.left(2); // "de", "en"
+
+    // Suchpfade für .qm-Dateien
+    QStringList searchPaths;
+    searchPaths << QCoreApplication::applicationDirPath() + "/translations"
+                << QDir::homePath() + "/.local/share/BareCode/translations"
+                << "/usr/share/BareCode/translations"
+                << "/usr/local/share/BareCode/translations";
+
+    // Qt-eigene Übersetzungen (Dialoge, Standard-Buttons)
+    QTranslator qtTranslator;
+    if (qtTranslator.load("qt_" + locale,
+                          QLibraryInfo::path(QLibraryInfo::TranslationsPath)))
+    {
+        app.installTranslator(&qtTranslator);
+    }
+
+    // BareCode-Übersetzung — in allen Suchpfaden versuchen
+    QTranslator appTranslator;
+    bool loaded = false;
+
+    for (const QString &path : searchPaths)
+    {
+        if (appTranslator.load(QString("barecode_%1").arg(locale), path) ||
+            appTranslator.load(QString("barecode_%1").arg(shortLocale), path))
+        {
+            app.installTranslator(&appTranslator);
+            loaded = true;
+            break;
+        }
+    }
+
+    // Fallback: Englisch
+    if (!loaded && shortLocale != "de")
+    {
+        for (const QString &path : searchPaths)
+        {
+            if (appTranslator.load("barecode_en", path))
+            {
+                app.installTranslator(&appTranslator);
+                break;
+            }
+        }
+    }
+
+    MainWindow window;
+    window.show();
+
+    // Datei(en) öffnen, die beim Start per Kommandozeile übergeben wurden
+    // (z. B. Doppelklick auf eine Datei im Dateibrowser → "Öffnen mit BareCode").
+    // Das erste Argument ist der Programmname selbst und wird übersprungen.
+    QStringList cliFiles = app.arguments();
+    if (!cliFiles.isEmpty())
+    {
+        cliFiles.removeFirst();
+    }
+    if (!cliFiles.isEmpty())
+    {
+        window.openFilesFromArguments(cliFiles);
+    }
+
+    return app.exec();
+}

barecode/resources/resources.qrc

@@ -0,0 +1,12 @@
+<RCC>
+    <qresource prefix="/">
+        <file>icon_512.png</file>
+        <file>icon_256.png</file>
+        <file>icon_128.png</file>
+        <file>icon_64.png</file>
+        <file>icon_48.png</file>
+        <file>icon_32.png</file>
+        <file>icon_16.png</file>
+        <file>php_functions.json</file>
+    </qresource>
+</RCC>

barecode/src/CMakeLists.txt

@@ -0,0 +1,4 @@
+add_subdirectory(core)
+add_subdirectory(editor)
+add_subdirectory(filetree)
+add_subdirectory(highlighter)

barecode/src/core/AboutDialog.cpp

@@ -0,0 +1,105 @@
+#include "AboutDialog.h"
+
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+#include <QLabel>
+#include <QPushButton>
+#include <QFrame>
+#include <QFont>
+#include <QApplication>
+
+AboutDialog::AboutDialog(QWidget *parent)
+    : QDialog(parent)
+{
+    setWindowTitle(tr("Über BareCode"));
+    setFixedSize(440, 310);
+    setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
+
+    QVBoxLayout *root = new QVBoxLayout(this);
+    root->setContentsMargins(0, 0, 0, 0);
+    root->setSpacing(0);
+
+    // -----------------------------------------------------------------------
+    // Header-Banner
+    // -----------------------------------------------------------------------
+    QFrame *banner = new QFrame(this);
+    banner->setFixedHeight(88);
+    banner->setStyleSheet(
+        "background: qlineargradient(x1:0, y1:0, x2:1, y2:0,"
+        " stop:0 #1a1a2e, stop:1 #16213e);"
+    );
+
+    QVBoxLayout *bannerLayout = new QVBoxLayout(banner);
+    bannerLayout->setContentsMargins(24, 10, 24, 10);
+    bannerLayout->setSpacing(2);
+
+    QLabel *appName = new QLabel("BareCode", banner);
+    QFont nameFont = appName->font();
+    nameFont.setPointSize(22);
+    nameFont.setBold(true);
+    appName->setFont(nameFont);
+    appName->setStyleSheet("color: #e0e0ff; background: transparent;");
+
+    QLabel *tagline = new QLabel(tr("Modularer Code-Editor"), banner);
+    tagline->setStyleSheet("color: #8888bb; background: transparent;");
+
+    bannerLayout->addWidget(appName);
+    bannerLayout->addWidget(tagline);
+    root->addWidget(banner);
+
+    // -----------------------------------------------------------------------
+    // Info-Tabelle
+    // -----------------------------------------------------------------------
+    QVBoxLayout *info = new QVBoxLayout();
+    info->setContentsMargins(28, 20, 28, 8);
+    info->setSpacing(10);
+
+    auto makeRow = [&](const QString &label, const QString &value)
+    {
+        QHBoxLayout *row = new QHBoxLayout();
+        row->setSpacing(12);
+
+        QLabel *lbl = new QLabel(label, this);
+        QFont boldFont = lbl->font();
+        boldFont.setBold(true);
+        lbl->setFont(boldFont);
+        lbl->setFixedWidth(100);
+        lbl->setAlignment(Qt::AlignRight | Qt::AlignVCenter);
+
+        QLabel *val = new QLabel(value, this);
+        val->setTextInteractionFlags(Qt::TextSelectableByMouse);
+
+        row->addWidget(lbl);
+        row->addWidget(val, 1);
+        info->addLayout(row);
+    };
+
+    makeRow(tr("Version"),    "1.2.0");
+    makeRow(tr("Entwickler"), "Dany Thinnes");
+    makeRow(tr("Projekt"),    "Projekt Hirnfrei");
+    makeRow(tr("Framework"),  QString("Qt %1").arg(qVersion()));
+    makeRow(tr("Sprache"),    "C++17");
+
+    root->addLayout(info);
+    root->addStretch();
+
+    // -----------------------------------------------------------------------
+    // Trennlinie + Schließen-Button
+    // -----------------------------------------------------------------------
+    QFrame *line = new QFrame(this);
+    line->setFrameShape(QFrame::HLine);
+    line->setFrameShadow(QFrame::Sunken);
+    root->addWidget(line);
+
+    QHBoxLayout *btnRow = new QHBoxLayout();
+    btnRow->setContentsMargins(12, 8, 12, 12);
+    btnRow->addStretch();
+
+    QPushButton *btnClose = new QPushButton(tr("Schließen"), this);
+    btnClose->setDefault(true);
+    btnClose->setFixedWidth(110);
+    connect(btnClose, &QPushButton::clicked, this, &QDialog::accept);
+    btnRow->addWidget(btnClose);
+
+    root->addLayout(btnRow);
+}

barecode/src/core/AboutDialog.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <QDialog>
+
+// ---------------------------------------------------------------------------
+// AboutDialog – Zeigt Versionsinformationen und Entwicklerangaben.
+// ---------------------------------------------------------------------------
+class AboutDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit AboutDialog(QWidget *parent = nullptr);
+};

barecode/src/core/CMakeLists.txt

@@ -0,0 +1,28 @@
+set(CORE_SOURCES
+    MainWindow.cpp
+    MainWindow.h
+    IPlugin.h
+    ProjectManager.cpp
+    ProjectManager.h
+    Settings.cpp
+    Settings.h
+    ThemeManager.cpp
+    ThemeManager.h
+    AboutDialog.cpp
+    AboutDialog.h
+)
+
+add_library(BareCode_Core STATIC ${CORE_SOURCES})
+
+target_link_libraries(BareCode_Core PUBLIC
+    Qt6::Core
+    Qt6::Gui
+    Qt6::Widgets
+    BareCode_Editor
+    BareCode_FileTree
+)
+
+target_include_directories(BareCode_Core PUBLIC
+    ${CMAKE_CURRENT_SOURCE_DIR}
+    ${CMAKE_CURRENT_SOURCE_DIR}/..
+)

barecode/src/core/IPlugin.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <QString>
+#include <QWidget>
+
+// ---------------------------------------------------------------------------
+// IPlugin – Interface that every BareCode module / plugin must implement.
+// This allows components to be swapped or extended without touching the core.
+// ---------------------------------------------------------------------------
+class IPlugin
+{
+public:
+    virtual ~IPlugin() = default;
+
+    // Human-readable name of the plugin
+    virtual QString pluginName() const = 0;
+
+    // Version string, e.g. "1.0.0"
+    virtual QString pluginVersion() const = 0;
+
+    // Called once after all plugins are loaded so plugins can cross-reference
+    virtual void initialize() {}
+
+    // Called before the application shuts down
+    virtual void shutdown() {}
+};

barecode/src/core/MainWindow.cpp

@@ -0,0 +1,412 @@
+#include "MainWindow.h"
+
+#include <QApplication>
+#include <QFileDialog>
+#include <QMessageBox>
+#include <QCloseEvent>
+#include <QSettings>
+#include <QFileInfo>
+
+#include "AboutDialog.h"
+#include "filetree/FileTreePanel.h"
+#include "editor/EditorPanel.h"
+
+// ---------------------------------------------------------------------------
+// Konstruktor
+// ---------------------------------------------------------------------------
+MainWindow::MainWindow(QWidget *parent)
+    : QMainWindow(parent)
+    , m_projectManager(std::make_unique<ProjectManager>())
+    , m_settings(std::make_unique<Settings>())
+    , m_themeManager(std::make_unique<ThemeManager>())
+{
+    setWindowTitle("BareCode");
+    setMinimumSize(900, 600);
+
+    setupUi();
+    setupMenuBar();
+    setupStatusBar();
+    connectSignals();
+    restoreWindowState();
+    applyInitialTheme();
+
+    // Letztes Projekt wieder öffnen
+    const QString lastPath = m_settings->lastProjectPath();
+    if (!lastPath.isEmpty())
+    {
+        m_projectManager->openProject(lastPath);
+    }
+
+    // Letzte Session wiederherstellen (geöffnete Dateien + aktiver Tab)
+    m_editor->restoreSession(
+        m_settings->lastOpenFiles(),
+        m_settings->lastActiveFile()
+    );
+}
+
+MainWindow::~MainWindow() = default;
+
+// ---------------------------------------------------------------------------
+// Datei(en) von der Kommandozeile öffnen
+// ---------------------------------------------------------------------------
+void MainWindow::openFilesFromArguments(const QStringList &filePaths)
+{
+    for (const QString &path : filePaths)
+    {
+        const QFileInfo info(path);
+        if (info.exists() && info.isFile())
+        {
+            m_editor->openFile(info.absoluteFilePath());
+        }
+    }
+}
+
+// ---------------------------------------------------------------------------
+// UI aufbauen
+// ---------------------------------------------------------------------------
+void MainWindow::setupUi()
+{
+    m_splitter = new QSplitter(Qt::Horizontal, this);
+    setCentralWidget(m_splitter);
+
+    m_fileTree = new FileTreePanel(m_splitter);
+    m_editor   = new EditorPanel(m_settings.get(), m_splitter);
+
+    m_splitter->addWidget(m_fileTree);
+    m_splitter->addWidget(m_editor);
+
+    const int treeWidth = m_settings->fileTreeWidth();
+    m_splitter->setSizes({treeWidth, width() - treeWidth});
+    m_splitter->setStretchFactor(0, 0);
+    m_splitter->setStretchFactor(1, 1);
+}
+
+// ---------------------------------------------------------------------------
+// Menüleiste
+// ---------------------------------------------------------------------------
+void MainWindow::setupMenuBar()
+{
+    // ---- Datei ----
+    QMenu *mDatei = menuBar()->addMenu(tr("&Datei"));
+
+    m_actNewFile = mDatei->addAction(tr("&Neue Datei…"), this, &MainWindow::onNewFile);
+    m_actNewFile->setShortcut(QKeySequence::New);
+
+    mDatei->addSeparator();
+
+    m_actOpenFile = mDatei->addAction(tr("Datei &öffnen…"), this, &MainWindow::onOpenFile);
+    m_actOpenFile->setShortcut(QKeySequence::Open);
+
+    m_actOpenProject = mDatei->addAction(tr("&Projekt öffnen…"), this, &MainWindow::onOpenProject);
+    m_actOpenProject->setShortcut(Qt::CTRL | Qt::SHIFT | Qt::Key_O);
+
+    m_actClose = mDatei->addAction(tr("Projekt &schließen"), this, &MainWindow::onCloseProject);
+
+    mDatei->addSeparator();
+
+    m_actSave = mDatei->addAction(tr("&Speichern"), this, &MainWindow::onSave);
+    m_actSave->setShortcut(QKeySequence::Save);
+
+    m_actSaveAs = mDatei->addAction(tr("Speichern &unter…"), this, &MainWindow::onSaveAs);
+    m_actSaveAs->setShortcut(QKeySequence::SaveAs);
+
+    m_actSaveAll = mDatei->addAction(tr("&Alles speichern"), this, &MainWindow::onSaveAll);
+    m_actSaveAll->setShortcut(Qt::CTRL | Qt::SHIFT | Qt::Key_S);
+
+    mDatei->addSeparator();
+
+    m_actQuit = mDatei->addAction(tr("&Beenden"), qApp, &QApplication::quit);
+    m_actQuit->setShortcut(QKeySequence::Quit);
+
+    // ---- Bearbeiten ----
+    QMenu *mBearbeiten = menuBar()->addMenu(tr("&Bearbeiten"));
+
+    m_actUndo = mBearbeiten->addAction(tr("&Rückgängig"), this, &MainWindow::onUndo);
+    m_actUndo->setShortcut(QKeySequence::Undo);
+
+    m_actRedo = mBearbeiten->addAction(tr("&Wiederholen"), this, &MainWindow::onRedo);
+    m_actRedo->setShortcut(QKeySequence::Redo);
+
+    mBearbeiten->addSeparator();
+
+    m_actSearch = mBearbeiten->addAction(tr("&Suchen / Ersetzen…"), this, &MainWindow::onShowSearch);
+    m_actSearch->setShortcut(QKeySequence::Find);
+
+    m_actFileSearch = mBearbeiten->addAction(tr("In &Dateien suchen…"), this, &MainWindow::onShowFileSearch);
+    m_actFileSearch->setShortcut(Qt::CTRL | Qt::SHIFT | Qt::Key_F);
+
+    mBearbeiten->addSeparator();
+
+    m_actFuncList = mBearbeiten->addAction(tr("&Projektfunktionen…"), this, &MainWindow::onShowFunctionList);
+    m_actFuncList->setShortcut(Qt::CTRL | Qt::SHIFT | Qt::Key_P);
+
+    m_actDeadCode = mBearbeiten->addAction(tr("&Tote Funktionen suchen…"), this, &MainWindow::onShowDeadCode);
+    m_actDeadCode->setShortcut(Qt::CTRL | Qt::SHIFT | Qt::Key_T);
+
+    // ---- Ansicht ----
+    QMenu *mAnsicht = menuBar()->addMenu(tr("&Ansicht"));
+
+    m_actDarkMode = mAnsicht->addAction(tr("&Dark Mode"));
+    m_actDarkMode->setCheckable(true);
+    m_actDarkMode->setShortcut(Qt::CTRL | Qt::SHIFT | Qt::Key_D);
+    connect(m_actDarkMode, &QAction::toggled, this, &MainWindow::onToggleDarkMode);
+
+    mAnsicht->addSeparator();
+
+    // Sprachauswahl
+    QMenu *mSprache = mAnsicht->addMenu(tr("Sprache"));
+    m_langGroup = new QActionGroup(this);
+    m_langGroup->setExclusive(true);
+
+    const QSettings langSettings(QSettings::IniFormat, QSettings::UserScope,
+                                 "BareCode", "BareCode");
+    const QString currentLocale = langSettings.value("language/locale",
+                                      QLocale::system().name()).toString();
+
+    struct LangEntry { QString locale; QString label; };
+    const QList<LangEntry> languages = {
+        { "de", "Deutsch" },
+        { "en", "English" },
+    };
+
+    for (const LangEntry &lang : languages)
+    {
+        QAction *act = mSprache->addAction(lang.label);
+        act->setCheckable(true);
+        act->setData(lang.locale);
+        act->setChecked(currentLocale.startsWith(lang.locale));
+        m_langGroup->addAction(act);
+        connect(act, &QAction::triggered, this, [this, lang]()
+        {
+            onLanguageChanged(lang.locale);
+        });
+    }
+
+    // ---- Hilfe ----
+    QMenu *mHilfe = menuBar()->addMenu(tr("&Hilfe"));
+    m_actAbout = mHilfe->addAction(tr("&Über BareCode…"), this, &MainWindow::onAbout);
+}
+
+void MainWindow::setupStatusBar()
+{
+    statusBar()->showMessage(tr("Bereit"));
+}
+
+// ---------------------------------------------------------------------------
+// Signale verbinden
+// ---------------------------------------------------------------------------
+void MainWindow::connectSignals()
+{
+    connect(m_projectManager.get(), &ProjectManager::projectOpened,
+            this, &MainWindow::onProjectOpened);
+
+    connect(m_projectManager.get(), &ProjectManager::projectClosed,
+            this, &MainWindow::onProjectClosed);
+
+    // Dateibaum → Editor
+    connect(m_fileTree, &FileTreePanel::fileActivated,
+            m_editor, &EditorPanel::openFile);
+
+    connect(m_fileTree, &FileTreePanel::fileCreated,
+            m_editor, &EditorPanel::openFile);
+
+    // Gespeichert → Statusleiste
+    connect(m_editor, &EditorPanel::currentFileSaved, this, [this](const QString &path)
+    {
+        statusBar()->showMessage(tr("Gespeichert: %1").arg(path), 3000);
+    });
+
+    // Splitter-Breite merken
+    connect(m_splitter, &QSplitter::splitterMoved, this, [this](int pos, int)
+    {
+        m_settings->setFileTreeWidth(pos);
+    });
+}
+
+// ---------------------------------------------------------------------------
+// Theme beim Start
+// ---------------------------------------------------------------------------
+void MainWindow::applyInitialTheme()
+{
+    const bool dark = m_settings->darkMode();
+    // Block damit toggled-Signal nicht doppelt feuert
+    m_actDarkMode->blockSignals(true);
+    m_actDarkMode->setChecked(dark);
+    m_actDarkMode->blockSignals(false);
+
+    m_themeManager->applyTheme(dark ? ThemeManager::Theme::Dark
+                                    : ThemeManager::Theme::Light);
+}
+
+// ---------------------------------------------------------------------------
+// Slots – Datei
+// ---------------------------------------------------------------------------
+void MainWindow::onNewFile()
+{
+    m_fileTree->triggerNewFile();
+}
+
+void MainWindow::onOpenFile()
+{
+    const QString path = QFileDialog::getOpenFileName(
+        this,
+        tr("Datei öffnen"),
+        m_settings->lastProjectPath()
+    );
+
+    if (!path.isEmpty())
+    {
+        m_editor->openFile(path);
+    }
+}
+
+void MainWindow::onOpenProject()
+{
+    const QString path = QFileDialog::getExistingDirectory(
+        this,
+        tr("Projektverzeichnis öffnen"),
+        m_settings->lastProjectPath()
+    );
+
+    if (!path.isEmpty())
+    {
+        m_projectManager->openProject(path);
+        m_settings->setLastProjectPath(path);
+    }
+}
+
+void MainWindow::onCloseProject()
+{
+    m_projectManager->closeProject();
+}
+
+void MainWindow::onSave()
+{
+    m_editor->saveCurrentFile();
+}
+
+void MainWindow::onSaveAs()
+{
+    m_editor->saveCurrentFileAs();
+}
+
+void MainWindow::onSaveAll()
+{
+    m_editor->saveAllFiles();
+    statusBar()->showMessage(tr("Alle Dateien gespeichert"), 3000);
+}
+
+// ---------------------------------------------------------------------------
+// Slots – Bearbeiten
+// ---------------------------------------------------------------------------
+void MainWindow::onUndo()
+{
+    m_editor->undo();
+}
+
+void MainWindow::onRedo()
+{
+    m_editor->redo();
+}
+
+void MainWindow::onShowSearch()
+{
+    m_editor->showSearchPanel();
+}
+
+// ---------------------------------------------------------------------------
+// Slots – Ansicht
+// ---------------------------------------------------------------------------
+void MainWindow::onToggleDarkMode(bool checked)
+{
+    m_themeManager->applyTheme(checked ? ThemeManager::Theme::Dark
+                                       : ThemeManager::Theme::Light);
+    m_settings->setDarkMode(checked);
+}
+
+void MainWindow::onLanguageChanged(const QString &locale)
+{
+    QSettings s(QSettings::IniFormat, QSettings::UserScope, "BareCode", "BareCode");
+    s.setValue("language/locale", locale);
+
+    QMessageBox::information(this,
+        tr("Sprache geändert"),
+        tr("Die Sprache wird beim nächsten Start von BareCode aktiv.")
+    );
+}
+
+// ---------------------------------------------------------------------------
+// Slots – Hilfe
+// ---------------------------------------------------------------------------
+void MainWindow::onAbout()
+{
+    AboutDialog dlg(this);
+    dlg.exec();
+}
+
+// ---------------------------------------------------------------------------
+// Slots – Projekt
+// ---------------------------------------------------------------------------
+void MainWindow::onShowDeadCode()
+{
+    m_editor->showDeadCode();
+}
+
+void MainWindow::onShowFunctionList()
+{
+    m_editor->showFunctionList();
+}
+
+void MainWindow::onShowFileSearch()
+{
+    m_editor->showFileSearchPanel();
+}
+
+void MainWindow::onProjectOpened(const QString &path)
+{
+    setWindowTitle(QString("BareCode – %1").arg(path));
+    m_fileTree->setRootPath(path);
+    m_editor->setSearchRoot(path);
+    statusBar()->showMessage(tr("Projekt geöffnet: %1").arg(path), 4000);
+}
+
+void MainWindow::onProjectClosed()
+{
+    setWindowTitle("BareCode");
+    m_fileTree->clearRoot();
+    m_editor->setSearchRoot(QString());
+    statusBar()->showMessage(tr("Projekt geschlossen"), 3000);
+}
+
+// ---------------------------------------------------------------------------
+// Fenster-Zustand
+// ---------------------------------------------------------------------------
+void MainWindow::saveWindowState()
+{
+    QSettings s(QSettings::IniFormat, QSettings::UserScope, "BareCode", "BareCode");
+    s.setValue("window/geometry", saveGeometry());
+    s.setValue("window/state",    saveState());
+
+    // Session speichern
+    m_settings->setLastOpenFiles(m_editor->openFilePaths());
+    m_settings->setLastActiveFile(m_editor->activeFilePath());
+}
+
+void MainWindow::restoreWindowState()
+{
+    QSettings s(QSettings::IniFormat, QSettings::UserScope, "BareCode", "BareCode");
+    if (s.contains("window/geometry"))
+    {
+        restoreGeometry(s.value("window/geometry").toByteArray());
+    }
+    if (s.contains("window/state"))
+    {
+        restoreState(s.value("window/state").toByteArray());
+    }
+}
+
+void MainWindow::closeEvent(QCloseEvent *event)
+{
+    saveWindowState();
+    event->accept();
+}

barecode/src/core/MainWindow.h

@@ -0,0 +1,99 @@
+#pragma once
+
+#include <QMainWindow>
+#include <QSplitter>
+#include <QMenuBar>
+#include <QStatusBar>
+#include <QAction>
+#include <QActionGroup>
+#include <memory>
+
+#include "ProjectManager.h"
+#include "Settings.h"
+#include "ThemeManager.h"
+
+class FileTreePanel;
+class EditorPanel;
+
+// ---------------------------------------------------------------------------
+// MainWindow – Hauptfenster. Besitzt alle zentralen Dienste und das Layout.
+// ---------------------------------------------------------------------------
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    explicit MainWindow(QWidget *parent = nullptr);
+    ~MainWindow() override;
+
+    // Datei(en) öffnen, die beim Programmstart per Kommandozeile übergeben
+    // wurden — z. B. durch Doppelklick auf eine Datei im Dateibrowser
+    // ("Öffnen mit BareCode").
+    void openFilesFromArguments(const QStringList &filePaths);
+
+protected:
+    void closeEvent(QCloseEvent *event) override;
+
+private slots:
+    // Datei
+    void onNewFile();
+    void onOpenFile();
+    void onOpenProject();
+    void onCloseProject();
+    void onSave();
+    void onSaveAs();
+    void onSaveAll();
+    // Bearbeiten
+    void onUndo();
+    void onRedo();
+    void onShowSearch();
+    void onShowFileSearch();
+    void onShowFunctionList();
+    void onShowDeadCode();
+    // Ansicht
+    void onToggleDarkMode(bool checked);
+    void onLanguageChanged(const QString &locale);
+    // Hilfe
+    void onAbout();
+    // Intern
+    void onProjectOpened(const QString &path);
+    void onProjectClosed();
+
+private:
+    void setupUi();
+    void setupMenuBar();
+    void setupStatusBar();
+    void connectSignals();
+    void applyInitialTheme();
+    void saveWindowState();
+    void restoreWindowState();
+
+    // Dienste
+    std::unique_ptr<ProjectManager> m_projectManager;
+    std::unique_ptr<Settings>       m_settings;
+    std::unique_ptr<ThemeManager>   m_themeManager;
+
+    // Layout
+    QSplitter     *m_splitter = nullptr;
+    FileTreePanel *m_fileTree = nullptr;
+    EditorPanel   *m_editor   = nullptr;
+
+    // Aktionen
+    QAction *m_actNewFile     = nullptr;
+    QAction *m_actOpenFile    = nullptr;
+    QAction *m_actOpenProject = nullptr;
+    QAction *m_actClose       = nullptr;
+    QAction *m_actSave        = nullptr;
+    QAction *m_actSaveAs      = nullptr;
+    QAction *m_actSaveAll     = nullptr;
+    QAction *m_actQuit        = nullptr;
+    QAction *m_actUndo        = nullptr;
+    QAction *m_actRedo        = nullptr;
+    QAction *m_actSearch      = nullptr;
+    QAction *m_actFileSearch  = nullptr;
+    QAction *m_actFuncList    = nullptr;
+    QAction *m_actDeadCode    = nullptr;
+    QAction *m_actDarkMode    = nullptr;
+    QActionGroup *m_langGroup = nullptr;
+    QAction *m_actAbout       = nullptr;
+};

barecode/src/core/ProjectManager.cpp

@@ -0,0 +1,33 @@
+#include "ProjectManager.h"
+
+ProjectManager::ProjectManager(QObject *parent)
+    : QObject(parent)
+{
+}
+
+QString ProjectManager::currentProjectPath() const
+{
+    return m_projectPath;
+}
+
+void ProjectManager::openProject(const QString &path)
+{
+    if (m_projectPath == path)
+    {
+        return;
+    }
+
+    m_projectPath = path;
+    emit projectOpened(m_projectPath);
+}
+
+void ProjectManager::closeProject()
+{
+    if (m_projectPath.isEmpty())
+    {
+        return;
+    }
+
+    m_projectPath.clear();
+    emit projectClosed();
+}

barecode/src/core/ProjectManager.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#include <QObject>
+#include <QString>
+
+// ---------------------------------------------------------------------------
+// ProjectManager – Tracks the currently open project directory and emits
+// signals when the project changes so other components can react.
+// ---------------------------------------------------------------------------
+class ProjectManager : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit ProjectManager(QObject *parent = nullptr);
+
+    QString currentProjectPath() const;
+    void    openProject(const QString &path);
+    void    closeProject();
+
+signals:
+    void projectOpened(const QString &path);
+    void projectClosed();
+
+private:
+    QString m_projectPath;
+};

barecode/src/core/Settings.cpp

@@ -0,0 +1,113 @@
+#include "Settings.h"
+
+Settings::Settings(QObject *parent)
+    : QObject(parent)
+    , m_settings(QSettings::IniFormat, QSettings::UserScope, "BareCode", "BareCode")
+{
+}
+
+// ---------------------------------------------------------------------------
+// Editor font
+// ---------------------------------------------------------------------------
+QFont Settings::editorFont() const
+{
+    QFont defaultFont("Monospace", 11);
+    defaultFont.setStyleHint(QFont::Monospace);
+    return m_settings.value("editor/font", defaultFont).value<QFont>();
+}
+
+void Settings::setEditorFont(const QFont &font)
+{
+    m_settings.setValue("editor/font", font);
+    emit settingsChanged();
+}
+
+// ---------------------------------------------------------------------------
+// Tab size
+// ---------------------------------------------------------------------------
+int Settings::tabSize() const
+{
+    return m_settings.value("editor/tabSize", 4).toInt();
+}
+
+void Settings::setTabSize(int size)
+{
+    m_settings.setValue("editor/tabSize", size);
+    emit settingsChanged();
+}
+
+// ---------------------------------------------------------------------------
+// Spaces vs. tabs
+// ---------------------------------------------------------------------------
+bool Settings::useSpacesForTabs() const
+{
+    return m_settings.value("editor/useSpacesForTabs", true).toBool();
+}
+
+void Settings::setUseSpacesForTabs(bool use)
+{
+    m_settings.setValue("editor/useSpacesForTabs", use);
+    emit settingsChanged();
+}
+
+// ---------------------------------------------------------------------------
+// File tree width
+// ---------------------------------------------------------------------------
+int Settings::fileTreeWidth() const
+{
+    return m_settings.value("layout/fileTreeWidth", 240).toInt();
+}
+
+void Settings::setFileTreeWidth(int width)
+{
+    m_settings.setValue("layout/fileTreeWidth", width);
+}
+
+// ---------------------------------------------------------------------------
+// Dark mode
+// ---------------------------------------------------------------------------
+bool Settings::darkMode() const
+{
+    return m_settings.value("appearance/darkMode", false).toBool();
+}
+
+void Settings::setDarkMode(bool dark)
+{
+    m_settings.setValue("appearance/darkMode", dark);
+}
+
+// ---------------------------------------------------------------------------
+// Last project path
+// ---------------------------------------------------------------------------
+QString Settings::lastProjectPath() const
+{
+    return m_settings.value("project/lastPath", QString()).toString();
+}
+
+void Settings::setLastProjectPath(const QString &path)
+{
+    m_settings.setValue("project/lastPath", path);
+}
+
+// ---------------------------------------------------------------------------
+// Session – geöffnete Dateien
+// ---------------------------------------------------------------------------
+QStringList Settings::lastOpenFiles() const
+{
+    return m_settings.value("session/openFiles", QStringList()).toStringList();
+}
+
+void Settings::setLastOpenFiles(const QStringList &files)
+{
+    m_settings.setValue("session/openFiles", files);
+}
+
+QString Settings::lastActiveFile() const
+{
+    return m_settings.value("session/activeFile", QString()).toString();
+}
+
+void Settings::setLastActiveFile(const QString &file)
+{
+    m_settings.setValue("session/activeFile", file);
+}

barecode/src/core/Settings.h

@@ -0,0 +1,52 @@
+#pragma once
+
+#include <QObject>
+#include <QSettings>
+#include <QString>
+#include <QFont>
+
+// ---------------------------------------------------------------------------
+// Settings – Centralised persistent application settings.
+// ---------------------------------------------------------------------------
+class Settings : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit Settings(QObject *parent = nullptr);
+
+    // Editor
+    QFont   editorFont() const;
+    void    setEditorFont(const QFont &font);
+
+    int     tabSize() const;
+    void    setTabSize(int size);
+
+    bool    useSpacesForTabs() const;
+    void    setUseSpacesForTabs(bool use);
+
+    // Layout
+    int     fileTreeWidth() const;
+    void    setFileTreeWidth(int width);
+
+    // Zuletzt geöffnete Dateien (Session-Wiederherstellung)
+    QStringList lastOpenFiles() const;
+    void        setLastOpenFiles(const QStringList &files);
+
+    QString     lastActiveFile() const;
+    void        setLastActiveFile(const QString &file);
+
+    // Recent
+    QString lastProjectPath() const;
+    void    setLastProjectPath(const QString &path);
+
+    // Erscheinungsbild
+    bool    darkMode() const;
+    void    setDarkMode(bool dark);
+
+signals:
+    void settingsChanged();
+
+private:
+    QSettings m_settings;
+};

barecode/src/core/ThemeManager.cpp

@@ -0,0 +1,115 @@
+#include "ThemeManager.h"
+
+#include <QApplication>
+#include <QStyleFactory>
+
+ThemeManager::ThemeManager(QObject *parent)
+    : QObject(parent)
+{
+}
+
+void ThemeManager::applyTheme(Theme theme)
+{
+    m_currentTheme = theme;
+    QApplication::setStyle(QStyleFactory::create("Fusion"));
+
+    if (theme == Theme::Dark)
+    {
+        QApplication::setPalette(buildDarkPalette());
+    }
+    else
+    {
+        QApplication::setPalette(buildLightPalette());
+    }
+
+    emit themeChanged(theme);
+}
+
+ThemeManager::Theme ThemeManager::currentTheme() const
+{
+    return m_currentTheme;
+}
+
+QPalette ThemeManager::buildDarkPalette()
+{
+    QPalette p;
+
+    const QColor bg       = QColor("#1e1e1e");
+    const QColor widget   = QColor("#252526");
+    const QColor alt      = QColor("#2d2d30");
+    const QColor hi       = QColor("#264f78");
+    const QColor hiText   = QColor("#ffffff");
+    const QColor text     = QColor("#d4d4d4");
+    const QColor disabled = QColor("#6d6d6d");
+    const QColor btn      = QColor("#3c3c3c");
+    const QColor mid      = QColor("#333333");
+    const QColor dark     = QColor("#1a1a1a");
+    const QColor light    = QColor("#454545");
+    const QColor link     = QColor("#569cd6");
+
+    p.setColor(QPalette::Window,          bg);
+    p.setColor(QPalette::WindowText,      text);
+    p.setColor(QPalette::Base,            widget);
+    p.setColor(QPalette::AlternateBase,   alt);
+    p.setColor(QPalette::Text,            text);
+    p.setColor(QPalette::Button,          btn);
+    p.setColor(QPalette::ButtonText,      text);
+    p.setColor(QPalette::Highlight,       hi);
+    p.setColor(QPalette::HighlightedText, hiText);
+    p.setColor(QPalette::Link,            link);
+    p.setColor(QPalette::LinkVisited,     link.darker(120));
+    p.setColor(QPalette::Mid,             mid);
+    p.setColor(QPalette::Dark,            dark);
+    p.setColor(QPalette::Light,           light);
+    p.setColor(QPalette::Shadow,          QColor("#000000"));
+    p.setColor(QPalette::ToolTipBase,     widget);
+    p.setColor(QPalette::ToolTipText,     text);
+    p.setColor(QPalette::PlaceholderText, disabled);
+
+    p.setColor(QPalette::Disabled, QPalette::WindowText, disabled);
+    p.setColor(QPalette::Disabled, QPalette::Text,       disabled);
+    p.setColor(QPalette::Disabled, QPalette::ButtonText, disabled);
+
+    return p;
+}
+
+QPalette ThemeManager::buildLightPalette()
+{
+    // Fusion-Standard-Palette
+    QPalette p;
+
+    const QColor bg       = QColor("#f3f3f3");
+    const QColor widget   = QColor("#ffffff");
+    const QColor alt      = QColor("#e8e8e8");
+    const QColor hi       = QColor("#0078d4");
+    const QColor hiText   = QColor("#ffffff");
+    const QColor text     = QColor("#1e1e1e");
+    const QColor disabled = QColor("#a0a0a0");
+    const QColor btn      = QColor("#e1e1e1");
+    const QColor mid      = QColor("#c8c8c8");
+    const QColor dark     = QColor("#a0a0a0");
+    const QColor light    = QColor("#ffffff");
+    const QColor link     = QColor("#0078d4");
+
+    p.setColor(QPalette::Window,          bg);
+    p.setColor(QPalette::WindowText,      text);
+    p.setColor(QPalette::Base,            widget);
+    p.setColor(QPalette::AlternateBase,   alt);
+    p.setColor(QPalette::Text,            text);
+    p.setColor(QPalette::Button,          btn);
+    p.setColor(QPalette::ButtonText,      text);
+    p.setColor(QPalette::Highlight,       hi);
+    p.setColor(QPalette::HighlightedText, hiText);
+    p.setColor(QPalette::Link,            link);
+    p.setColor(QPalette::LinkVisited,     link.darker(130));
+    p.setColor(QPalette::Mid,             mid);
+    p.setColor(QPalette::Dark,            dark);
+    p.setColor(QPalette::Light,           light);
+    p.setColor(QPalette::PlaceholderText, disabled);
+
+    p.setColor(QPalette::Disabled, QPalette::WindowText, disabled);
+    p.setColor(QPalette::Disabled, QPalette::Text,       disabled);
+    p.setColor(QPalette::Disabled, QPalette::ButtonText, disabled);
+
+    return p;
+}

barecode/src/core/ThemeManager.h

@@ -0,0 +1,29 @@
+#pragma once
+
+#include <QObject>
+#include <QPalette>
+
+// ---------------------------------------------------------------------------
+// ThemeManager – Schaltet zwischen Hell- und Dunkelmodus um.
+// ---------------------------------------------------------------------------
+class ThemeManager : public QObject
+{
+    Q_OBJECT
+
+public:
+    enum class Theme { Light, Dark };
+
+    explicit ThemeManager(QObject *parent = nullptr);
+
+    void  applyTheme(Theme theme);
+    Theme currentTheme() const;
+
+signals:
+    void themeChanged(Theme theme);
+
+private:
+    static QPalette buildDarkPalette();
+    static QPalette buildLightPalette();
+
+    Theme m_currentTheme = Theme::Light;
+};

barecode/src/editor/CMakeLists.txt

@@ -0,0 +1,49 @@
+set(EDITOR_SOURCES
+    EditorPanel.cpp
+    EditorPanel.h
+    CodeEditor.cpp
+    CodeEditor.h
+    LineNumberArea.cpp
+    LineNumberArea.h
+    EditorTab.cpp
+    EditorTab.h
+    SearchPanel.cpp
+    SearchPanel.h
+    FileSearchPanel.cpp
+    FileSearchPanel.h
+    ColorIndicator.cpp
+    ColorIndicator.h
+    SignatureHelper.cpp
+    SignatureHelper.h
+    SignatureTooltip.cpp
+    SignatureTooltip.h
+    FunctionScanner.cpp
+    FunctionScanner.h
+    FunctionIndex.cpp
+    FunctionIndex.h
+    FunctionListPanel.cpp
+    FunctionListPanel.h
+    FunctionListDialog.cpp
+    FunctionListDialog.h
+    DeadCodeAnalyzer.cpp
+    DeadCodeAnalyzer.h
+    DeadCodeDialog.cpp
+    DeadCodeDialog.h
+    VariableCompleter.cpp
+    VariableCompleter.h
+)
+
+add_library(BareCode_Editor STATIC ${EDITOR_SOURCES})
+
+target_link_libraries(BareCode_Editor PUBLIC
+    Qt6::Core
+    Qt6::Gui
+    Qt6::Widgets
+    Qt6::Concurrent
+    BareCode_Highlighter
+)
+
+target_include_directories(BareCode_Editor PUBLIC
+    ${CMAKE_CURRENT_SOURCE_DIR}
+    ${CMAKE_CURRENT_SOURCE_DIR}/..
+)

barecode/src/editor/CodeEditor.cpp

@@ -0,0 +1,762 @@
+#include "CodeEditor.h"
+#include "LineNumberArea.h"
+#include "ColorIndicator.h"
+#include "SignatureHelper.h"
+#include "FunctionIndex.h"
+#include "VariableCompleter.h"
+
+#include "core/Settings.h"
+#include "highlighter/HighlighterFactory.h"
+
+#include <QPainter>
+#include <QTextBlock>
+#include <QPaintEvent>
+#include <QResizeEvent>
+#include <QKeyEvent>
+#include <QMouseEvent>
+#include <QFocusEvent>
+#include <QScrollBar>
+#include <QFile>
+#include <QTextStream>
+#include <QFileInfo>
+#include <QFileDialog>
+#include <QMessageBox>
+
+CodeEditor::CodeEditor(Settings *settings, QWidget *parent)
+    : QPlainTextEdit(parent)
+    , m_settings(settings)
+{
+    m_lineNumberArea  = new LineNumberArea(this);
+    m_colorIndicator  = new ColorIndicator(this);
+    m_signatureHelper = new SignatureHelper(this);
+    m_varCompleter    = new VariableCompleter(this);
+    setupEditor();
+
+    connect(this, &CodeEditor::blockCountChanged,
+            this, &CodeEditor::updateLineNumberAreaWidth);
+
+    connect(this, &CodeEditor::updateRequest,
+            this, &CodeEditor::updateLineNumberArea);
+
+    connect(this, &CodeEditor::cursorPositionChanged,
+            this, &CodeEditor::highlightCurrentLine);
+
+    updateLineNumberAreaWidth(0);
+    highlightCurrentLine();
+}
+
+CodeEditor::~CodeEditor() = default;
+
+// ---------------------------------------------------------------------------
+// Setup
+// ---------------------------------------------------------------------------
+void CodeEditor::setupEditor()
+{
+    applySettings();
+    setLineWrapMode(QPlainTextEdit::NoWrap);
+}
+
+void CodeEditor::applySettings()
+{
+    setFont(m_settings->editorFont());
+
+    const int tabStop = m_settings->tabSize();
+    // Set tab stop width in pixels using font metrics
+    QFontMetrics fm(m_settings->editorFont());
+    setTabStopDistance(static_cast<qreal>(tabStop) * fm.horizontalAdvance(' '));
+}
+
+// ---------------------------------------------------------------------------
+// File I/O
+// ---------------------------------------------------------------------------
+void CodeEditor::loadFile(const QString &filePath)
+{
+    QFile file(filePath);
+    if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
+    {
+        QMessageBox::warning(this, tr("Open File"),
+            tr("Cannot open file:\n%1").arg(filePath));
+        return;
+    }
+
+    m_filePath = filePath;
+
+    QTextStream in(&file);
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    in.setEncoding(QStringConverter::Utf8);
+#else
+    in.setCodec("UTF-8");
+#endif
+
+    setPlainText(in.readAll());
+    document()->setModified(false);
+
+    installHighlighter(filePath);
+}
+
+QString CodeEditor::filePath() const
+{
+    return m_filePath;
+}
+
+bool CodeEditor::save()
+{
+    if (m_filePath.isEmpty())
+    {
+        return saveAs();
+    }
+
+    return writeToFile(m_filePath);
+}
+
+bool CodeEditor::saveAs()
+{
+    const QString path = QFileDialog::getSaveFileName(
+        this,
+        tr("Speichern unter"),
+        m_filePath
+    );
+
+    if (path.isEmpty())
+    {
+        return false;
+    }
+
+    m_filePath = path;
+    installHighlighter(m_filePath);
+    return writeToFile(m_filePath);
+}
+
+bool CodeEditor::writeToFile(const QString &filePath)
+{
+    QFile file(filePath);
+    if (!file.open(QIODevice::WriteOnly | QIODevice::Text))
+    {
+        QMessageBox::warning(this, tr("Speichern"),
+            tr("Datei konnte nicht gespeichert werden:\n%1").arg(filePath));
+        return false;
+    }
+
+    QTextStream out(&file);
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    out.setEncoding(QStringConverter::Utf8);
+#else
+    out.setCodec("UTF-8");
+#endif
+
+    out << toPlainText();
+    document()->setModified(false);
+    emit fileSaved(filePath);
+    return true;
+}
+
+void CodeEditor::installHighlighter(const QString &filePath)
+{
+    // Remove old highlighter first
+    delete m_highlighter;
+    m_highlighter = nullptr;
+
+    m_highlighter = HighlighterFactory::createForFile(filePath, document());
+}
+
+bool CodeEditor::isModified() const
+{
+    return document()->isModified();
+}
+
+// ---------------------------------------------------------------------------
+// Line number area
+// ---------------------------------------------------------------------------
+int CodeEditor::lineNumberAreaWidth() const
+{
+    int digits = 1;
+    int max    = qMax(1, blockCount());
+    while (max >= 10)
+    {
+        max /= 10;
+        ++digits;
+    }
+
+    const int padding = 8;
+    return fontMetrics().horizontalAdvance('9') * digits + padding * 2;
+}
+
+void CodeEditor::updateLineNumberAreaWidth(int /*newBlockCount*/)
+{
+    setViewportMargins(lineNumberAreaWidth(), 0, 0, 0);
+}
+
+void CodeEditor::updateLineNumberArea(const QRect &rect, int dy)
+{
+    if (dy != 0)
+    {
+        m_lineNumberArea->scroll(0, dy);
+    }
+    else
+    {
+        m_lineNumberArea->update(0, rect.y(), m_lineNumberArea->width(), rect.height());
+    }
+
+    if (rect.contains(viewport()->rect()))
+    {
+        updateLineNumberAreaWidth(0);
+    }
+}
+
+void CodeEditor::paintEvent(QPaintEvent *event)
+{
+    // Zuerst den normalen Editor-Inhalt zeichnen
+    QPlainTextEdit::paintEvent(event);
+
+    // Einrück-Führungslinien
+    const int tabSize = m_settings->tabSize();
+    if (tabSize > 0)
+    {
+        QPainter painter(viewport());
+
+        QColor guideColor = palette().color(QPalette::Text);
+        guideColor.setAlpha(30);
+        painter.setPen(QPen(guideColor, 1, Qt::SolidLine));
+
+        const QFontMetrics fm(font());
+        const int spaceWidth = fm.horizontalAdvance(' ');
+        const int tabPixels  = tabSize * spaceWidth;
+
+        if (tabPixels > 0)
+        {
+            int textOriginX = 0;
+            {
+                QTextBlock firstBlock = firstVisibleBlock();
+                if (!firstBlock.isValid())
+                {
+                    firstBlock = document()->begin();
+                }
+                if (firstBlock.isValid())
+                {
+                    const QRectF blockRect = blockBoundingGeometry(firstBlock)
+                                                 .translated(contentOffset());
+                    const QTextLayout *layout = firstBlock.layout();
+                    if (layout && layout->lineCount() > 0)
+                    {
+                        textOriginX = static_cast<int>(blockRect.left()
+                                      + layout->lineAt(0).position().x());
+                    }
+                    else
+                    {
+                        textOriginX = static_cast<int>(blockRect.left());
+                    }
+                }
+            }
+
+            const int scrollX = horizontalScrollBar()->value();
+
+            QTextBlock block  = firstVisibleBlock();
+            const int  bottom = event->rect().bottom();
+
+            while (block.isValid())
+            {
+                const QRectF blockRect = blockBoundingGeometry(block)
+                                             .translated(contentOffset());
+                if (blockRect.top() > bottom) { break; }
+
+                if (block.isVisible())
+                {
+                    const QString text = block.text();
+                    int indentSpaces = 0;
+                    for (const QChar &ch : text)
+                    {
+                        if      (ch == ' ')  { ++indentSpaces; }
+                        else if (ch == '\t') { indentSpaces = ((indentSpaces / tabSize) + 1) * tabSize; }
+                        else                 { break; }
+                    }
+
+                    const int indentStops = indentSpaces / tabSize;
+                    for (int stop = 1; stop <= indentStops; ++stop)
+                    {
+                        const int xPixel = textOriginX + stop * tabPixels - scrollX;
+                        if (xPixel < lineNumberAreaWidth() || xPixel > viewport()->width())
+                        {
+                            continue;
+                        }
+                        painter.drawLine(xPixel,
+                                         static_cast<int>(blockRect.top()),
+                                         xPixel,
+                                         static_cast<int>(blockRect.bottom()));
+                    }
+                }
+                block = block.next();
+            }
+        }
+
+        // Farbvorschau-Quadrate zeichnen
+        m_colorIndicator->paint(painter, event);
+    }
+}
+
+void CodeEditor::setFunctionIndex(FunctionIndex *index)
+{
+    m_functionIndex = index;
+}
+
+void CodeEditor::mouseDoubleClickEvent(QMouseEvent *event)
+{
+    // Zuerst normales Verhalten — markiert das Wort unter dem Cursor
+    QPlainTextEdit::mouseDoubleClickEvent(event);
+
+    if (!m_functionIndex || !m_functionIndex->isReady())
+    {
+        return;
+    }
+
+    // Markiertes Wort auslesen
+    const QString word = textCursor().selectedText().trimmed();
+    if (word.isEmpty() || word.contains(' '))
+    {
+        return;
+    }
+
+    // Im Funktionsindex nachschlagen
+    const FunctionScanner::FunctionInfo info = m_functionIndex->lookup(word);
+    if (info.filePath.isEmpty())
+    {
+        return; // Nicht gefunden — normales Verhalten bleibt
+    }
+
+    // Nicht zur eigenen Definition springen wenn wir bereits dort sind
+    if (info.filePath == m_filePath && info.line == textCursor().blockNumber() + 1)
+    {
+        return;
+    }
+
+    emit navigateToRequested(info.filePath, info.line);
+}
+
+void CodeEditor::mousePressEvent(QMouseEvent *event)
+{
+    // Zuerst prüfen ob ein Farbquadrat geklickt wurde
+    if (m_colorIndicator->handleMousePress(event))
+    {
+        return;
+    }
+    QPlainTextEdit::mousePressEvent(event);
+}
+
+void CodeEditor::resizeEvent(QResizeEvent *event)
+{
+    QPlainTextEdit::resizeEvent(event);
+
+    const QRect cr = contentsRect();
+    m_lineNumberArea->setGeometry(
+        QRect(cr.left(), cr.top(), lineNumberAreaWidth(), cr.height())
+    );
+}
+
+void CodeEditor::lineNumberAreaPaintEvent(QPaintEvent *event)
+{
+    QPainter painter(m_lineNumberArea);
+
+    // Background
+    const QColor bgColor = palette().color(QPalette::Window).darker(110);
+    painter.fillRect(event->rect(), bgColor);
+
+    const QColor lineNumColor = palette().color(QPalette::Mid);
+    const QColor activeColor  = palette().color(QPalette::Text);
+
+    const int currentLine = textCursor().blockNumber();
+
+    QTextBlock block    = firstVisibleBlock();
+    int blockNumber     = block.blockNumber();
+    int top    = static_cast<int>(blockBoundingGeometry(block).translated(contentOffset()).top());
+    int bottom = top + static_cast<int>(blockBoundingRect(block).height());
+
+    while (block.isValid() && top <= event->rect().bottom())
+    {
+        if (block.isVisible() && bottom >= event->rect().top())
+        {
+            const QString number = QString::number(blockNumber + 1);
+            painter.setPen(blockNumber == currentLine ? activeColor : lineNumColor);
+            painter.drawText(
+                0,
+                top,
+                m_lineNumberArea->width() - 4,
+                fontMetrics().height(),
+                Qt::AlignRight,
+                number
+            );
+        }
+
+        block   = block.next();
+        top     = bottom;
+        bottom  = top + static_cast<int>(blockBoundingRect(block).height());
+        ++blockNumber;
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Current line highlight + Klammerzugehörigkeit
+// ---------------------------------------------------------------------------
+void CodeEditor::highlightCurrentLine()
+{
+    QList<QTextEdit::ExtraSelection> extraSelections;
+
+    if (!isReadOnly())
+    {
+        // Aktuelle Zeile hervorheben
+        QTextEdit::ExtraSelection lineSelection;
+        lineSelection.format.setBackground(palette().color(QPalette::AlternateBase));
+        lineSelection.format.setProperty(QTextFormat::FullWidthSelection, true);
+        lineSelection.cursor = textCursor();
+        lineSelection.cursor.clearSelection();
+        extraSelections.append(lineSelection);
+
+        // Klammerzugehörigkeit
+        matchBrackets(extraSelections);
+    }
+
+    setExtraSelections(extraSelections);
+}
+
+void CodeEditor::matchBrackets(QList<QTextEdit::ExtraSelection> &selections)
+{
+    static const QString openBrackets  = "({[";
+    static const QString closeBrackets = ")}]";
+
+    QTextCursor cursor = textCursor();
+    const QString blockText = cursor.block().text();
+    const int col = cursor.columnNumber();
+
+    // Zeichen unter oder links vom Cursor prüfen
+    QChar ch;
+    int   charPos = -1;
+
+    // Zuerst Zeichen unter dem Cursor
+    if (col < blockText.length())
+    {
+        ch = blockText[col];
+        if (openBrackets.contains(ch) || closeBrackets.contains(ch))
+        {
+            charPos = col;
+        }
+    }
+
+    // Dann Zeichen links vom Cursor
+    if (charPos == -1 && col > 0)
+    {
+        ch = blockText[col - 1];
+        if (openBrackets.contains(ch) || closeBrackets.contains(ch))
+        {
+            charPos = col - 1;
+        }
+    }
+
+    if (charPos == -1)
+    {
+        return;
+    }
+
+    // Passende Klammer suchen
+    const bool isOpen = openBrackets.contains(ch);
+    const int  bracketIndex = isOpen
+                              ? openBrackets.indexOf(ch)
+                              : closeBrackets.indexOf(ch);
+    const QChar matchChar = isOpen
+                            ? closeBrackets[bracketIndex]
+                            : openBrackets[bracketIndex];
+
+    // Dokumentposition der gefundenen Klammer
+    const int startPos = cursor.block().position() + charPos;
+
+    // Passende Klammer suchen — vorwärts oder rückwärts
+    int depth    = 0;
+    int matchPos = -1;
+
+    if (isOpen)
+    {
+        // Vorwärts suchen
+        QTextCursor search(document());
+        search.setPosition(startPos);
+
+        while (!search.atEnd())
+        {
+            search.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor);
+            const QChar c = search.selectedText()[0];
+            search.clearSelection();
+
+            if (c == ch)       { ++depth; }
+            else if (c == matchChar)
+            {
+                --depth;
+                if (depth == 0)
+                {
+                    matchPos = search.position() - 1;
+                    break;
+                }
+            }
+        }
+    }
+    else
+    {
+        // Rückwärts suchen
+        QTextCursor search(document());
+        search.setPosition(startPos + 1);
+
+        while (search.position() > 0)
+        {
+            search.movePosition(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor);
+            const QChar c = search.selectedText()[0];
+            search.clearSelection();
+
+            if (c == ch)       { ++depth; }
+            else if (c == matchChar)
+            {
+                --depth;
+                if (depth == 0)
+                {
+                    matchPos = search.position();
+                    break;
+                }
+            }
+        }
+    }
+
+    // Formatierung
+    QTextCharFormat matchFormat;
+    if (matchPos >= 0)
+    {
+        // Gefunden — beide Klammern grün hervorheben
+        matchFormat.setBackground(QColor("#1a5a1a"));
+        matchFormat.setForeground(QColor("#88ff88"));
+        matchFormat.setFontWeight(QFont::Bold);
+    }
+    else
+    {
+        // Kein Match — rot markieren
+        matchFormat.setBackground(QColor("#5a1a1a"));
+        matchFormat.setForeground(QColor("#ff8888"));
+        matchFormat.setFontWeight(QFont::Bold);
+    }
+
+    // Öffnende / schließende Klammer markieren
+    QTextEdit::ExtraSelection sel1;
+    sel1.cursor = QTextCursor(document());
+    sel1.cursor.setPosition(startPos);
+    sel1.cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor);
+    sel1.format = matchFormat;
+    selections.append(sel1);
+
+    // Passende Klammer markieren (nur wenn gefunden)
+    if (matchPos >= 0)
+    {
+        QTextEdit::ExtraSelection sel2;
+        sel2.cursor = QTextCursor(document());
+        sel2.cursor.setPosition(matchPos);
+        sel2.cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor);
+        sel2.format = matchFormat;
+        selections.append(sel2);
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Key handling – Tab/Shift+Tab, Smart-Backspace, Auto-Indent
+// ---------------------------------------------------------------------------
+void CodeEditor::keyPressEvent(QKeyEvent *event)
+{
+    const int tabSize = m_settings->tabSize();
+
+    // -----------------------------------------------------------------------
+    // Shift+Tab: Einrückung zurückziehen
+    // -----------------------------------------------------------------------
+    if (event->key() == Qt::Key_Backtab ||
+        (event->key() == Qt::Key_Tab && event->modifiers() & Qt::ShiftModifier))
+    {
+        QTextCursor cursor = textCursor();
+
+        QTextBlock startBlock = document()->findBlock(cursor.selectionStart());
+        QTextBlock endBlock   = document()->findBlock(cursor.selectionEnd());
+
+        // Wenn die Selektion genau am Anfang des letzten Blocks endet,
+        // diesen Block nicht mit einbeziehen — der Cursor steht dort nur
+        // mit Position 0, der Nutzer hat die Zeile nicht markiert
+        if (cursor.hasSelection() &&
+            cursor.selectionEnd() == endBlock.position() &&
+            endBlock != startBlock)
+        {
+            endBlock = endBlock.previous();
+        }
+
+        cursor.beginEditBlock();
+        for (QTextBlock b = startBlock; b != endBlock.next(); b = b.next())
+        {
+            const QString lineText = b.text();
+            int toRemove = 0;
+
+            if (m_settings->useSpacesForTabs())
+            {
+                for (int i = 0; i < tabSize && i < lineText.length(); ++i)
+                {
+                    if (lineText[i] == ' ') { ++toRemove; }
+                    else                    { break; }
+                }
+            }
+            else
+            {
+                if (!lineText.isEmpty() && lineText[0] == '\t')
+                {
+                    toRemove = 1;
+                }
+            }
+
+            if (toRemove > 0)
+            {
+                QTextCursor lineCursor(b);
+                lineCursor.movePosition(QTextCursor::StartOfBlock);
+                lineCursor.movePosition(QTextCursor::Right,
+                                        QTextCursor::KeepAnchor,
+                                        toRemove);
+                lineCursor.removeSelectedText();
+            }
+        }
+        cursor.endEditBlock();
+        return;
+    }
+
+    // -----------------------------------------------------------------------
+    // Tab: Einrücken (Leerzeichen oder echter Tab)
+    // -----------------------------------------------------------------------
+    if (event->key() == Qt::Key_Tab)
+    {
+        QTextCursor cursor = textCursor();
+
+        if (cursor.hasSelection())
+        {
+            QTextBlock startBlock = document()->findBlock(cursor.selectionStart());
+            QTextBlock endBlock   = document()->findBlock(cursor.selectionEnd());
+
+            // Gleiche Korrektur: Cursor am Zeilenanfang → Zeile nicht einrücken
+            if (cursor.selectionEnd() == endBlock.position() &&
+                endBlock != startBlock)
+            {
+                endBlock = endBlock.previous();
+            }
+
+            cursor.beginEditBlock();
+            for (QTextBlock b = startBlock; b != endBlock.next(); b = b.next())
+            {
+                QTextCursor lineCursor(b);
+                lineCursor.movePosition(QTextCursor::StartOfBlock);
+                if (m_settings->useSpacesForTabs())
+                {
+                    lineCursor.insertText(QString(tabSize, ' '));
+                }
+                else
+                {
+                    lineCursor.insertText("\t");
+                }
+            }
+            cursor.endEditBlock();
+        }
+        else
+        {
+            if (m_settings->useSpacesForTabs())
+            {
+                // Zum nächsten Tab-Stop auffüllen
+                const int col         = cursor.columnNumber();
+                const int spacesNeeded = tabSize - (col % tabSize);
+                cursor.insertText(QString(spacesNeeded, ' '));
+            }
+            else
+            {
+                cursor.insertText("\t");
+            }
+        }
+        return;
+    }
+
+    // -----------------------------------------------------------------------
+    // Smart Backspace: springt zur vorherigen Einrückungsstufe
+    // -----------------------------------------------------------------------
+    if (event->key() == Qt::Key_Backspace
+        && !textCursor().hasSelection()
+        && m_settings->useSpacesForTabs())
+    {
+        QTextCursor cursor = textCursor();
+        const int col = cursor.columnNumber();
+
+        if (col > 0)
+        {
+            // Prüfen ob links vom Cursor nur Leerzeichen bis Zeilenbeginn stehen
+            const QString lineText   = cursor.block().text();
+            const QString leftOfCursor = lineText.left(col);
+            const bool onlySpaces    = leftOfCursor.trimmed().isEmpty();
+
+            if (onlySpaces && col > 0)
+            {
+                // Zur vorherigen Tab-Stop-Position springen
+                const int targetCol  = ((col - 1) / tabSize) * tabSize;
+                const int toDelete   = col - targetCol;
+
+                cursor.movePosition(QTextCursor::Left,
+                                    QTextCursor::KeepAnchor,
+                                    toDelete);
+                cursor.removeSelectedText();
+                return;
+            }
+        }
+    }
+
+    // -----------------------------------------------------------------------
+    // Enter / Return: Auto-Indent
+    // -----------------------------------------------------------------------
+    if (event->key() == Qt::Key_Return || event->key() == Qt::Key_Enter)
+    {
+        QTextCursor cursor = textCursor();
+        const QString currentLine = cursor.block().text();
+
+        // Führende Leerzeichen der aktuellen Zeile zählen
+        int leadingSpaces = 0;
+        for (const QChar &ch : currentLine)
+        {
+            if (ch == ' ')
+            {
+                ++leadingSpaces;
+            }
+            else if (ch == '\t')
+            {
+                leadingSpaces += tabSize;
+            }
+            else
+            {
+                break;
+            }
+        }
+
+        QPlainTextEdit::keyPressEvent(event);
+
+        if (leadingSpaces > 0)
+        {
+            const QString indent = m_settings->useSpacesForTabs()
+                ? QString(leadingSpaces, ' ')
+                : QString(leadingSpaces / tabSize, '\t');
+            textCursor().insertText(indent);
+        }
+        return;
+    }
+
+    QPlainTextEdit::keyPressEvent(event);
+
+    // Variablen-Popup nach jedem Tastendruck aktualisieren
+    m_varCompleter->handleKeyPress(event);
+}
+
+// ---------------------------------------------------------------------------
+// Fokus verloren — z. B. beim Wechsel zu einem anderen Tab.
+// Ein noch offenes Variablen-Popup muss hier geschlossen werden, sonst
+// bleibt es als verwaistes Fenster stehen und kann bei mehreren offenen
+// Dateien den Fokus blockieren.
+// ---------------------------------------------------------------------------
+void CodeEditor::focusOutEvent(QFocusEvent *event)
+{
+    QPlainTextEdit::focusOutEvent(event);
+    m_varCompleter->notifyFocusLost();
+}
+

barecode/src/editor/CodeEditor.h

@@ -0,0 +1,86 @@
+#pragma once
+
+#include <QPlainTextEdit>
+#include <QFont>
+#include <QString>
+#include <QTextBlock>
+
+class LineNumberArea;
+class Settings;
+class SyntaxHighlighter;
+class ColorIndicator;
+class SignatureHelper;
+class FunctionIndex;
+class VariableCompleter;
+
+// ---------------------------------------------------------------------------
+// CodeEditor – Core editing widget.
+// Features:
+//   • Line number gutter
+//   • Current-line highlight
+//   • Auto-indent on Enter
+//   • Tab → spaces (configurable)
+//   • Syntax highlighting (via pluggable SyntaxHighlighter)
+// ---------------------------------------------------------------------------
+class CodeEditor : public QPlainTextEdit
+{
+    Q_OBJECT
+
+public:
+    explicit CodeEditor(Settings *settings, QWidget *parent = nullptr);
+    ~CodeEditor() override;
+
+    void loadFile(const QString &filePath);
+    void applySettings();
+
+    // Speichern
+    bool save();
+    bool saveAs();
+
+    // Called by LineNumberArea
+    int  lineNumberAreaWidth() const;
+    void lineNumberAreaPaintEvent(QPaintEvent *event);
+
+    QString filePath()   const;
+    bool    isModified() const;
+
+    // Öffentliche Hilfsmethoden für ColorIndicator
+    // (die Qt-Originale sind protected und von außen nicht erreichbar)
+    QTextBlock firstVisibleBlockPublic() const  { return firstVisibleBlock(); }
+    QRectF     blockBoundingGeometryPublic(const QTextBlock &b) const { return blockBoundingGeometry(b); }
+    QPointF    contentOffsetPublic() const      { return contentOffset(); }
+
+    void setFunctionIndex(FunctionIndex *index);
+
+signals:
+    void fileSaved(const QString &filePath);
+    void navigateToRequested(const QString &filePath, int line);
+
+protected:
+    void resizeEvent(QResizeEvent *event) override;
+    void keyPressEvent(QKeyEvent *event) override;
+    void paintEvent(QPaintEvent *event) override;
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseDoubleClickEvent(QMouseEvent *event) override;
+    void focusOutEvent(QFocusEvent *event) override;
+
+private slots:
+    void updateLineNumberAreaWidth(int newBlockCount);
+    void highlightCurrentLine();
+    void updateLineNumberArea(const QRect &rect, int dy);
+
+private:
+    void setupEditor();
+    void installHighlighter(const QString &filePath);
+    bool writeToFile(const QString &filePath);
+    void matchBrackets(QList<QTextEdit::ExtraSelection> &selections);
+
+    Settings          *m_settings        = nullptr;
+    LineNumberArea    *m_lineNumberArea   = nullptr;
+    SyntaxHighlighter *m_highlighter      = nullptr;
+    ColorIndicator    *m_colorIndicator   = nullptr;
+    SignatureHelper   *m_signatureHelper  = nullptr;
+    FunctionIndex     *m_functionIndex    = nullptr;
+    VariableCompleter *m_varCompleter     = nullptr;
+    QString            m_filePath;
+};

barecode/src/editor/ColorIndicator.cpp

@@ -0,0 +1,361 @@
+#include "ColorIndicator.h"
+#include "CodeEditor.h"
+
+#include <QPainter>
+#include <QPaintEvent>
+#include <QMouseEvent>
+#include <QColorDialog>
+#include <QTextBlock>
+#include <QTextCursor>
+#include <QTextDocument>
+#include <QScrollBar>
+#include <QHash>
+
+// ---------------------------------------------------------------------------
+// Kombinierter Regex — erfasst alle CSS-Farbformate in einer Runde
+// ---------------------------------------------------------------------------
+const QRegularExpression ColorIndicator::s_colorRegex(
+    // #rgb / #rrggbb / #rrggbbaa
+    R"(#(?:[0-9A-Fa-f]{8}|[0-9A-Fa-f]{6}|[0-9A-Fa-f]{3})(?=[^0-9A-Fa-f]|$))"
+    R"(|rgba?\s*\([^)]+\))"
+    R"(|hsla?\s*\([^)]+\))",
+    QRegularExpression::CaseInsensitiveOption
+);
+
+// ---------------------------------------------------------------------------
+// Konstruktor
+// ---------------------------------------------------------------------------
+ColorIndicator::ColorIndicator(CodeEditor *editor)
+    : QObject(editor)
+    , m_editor(editor)
+{
+    // Cache invalidieren und Viewport neu zeichnen wenn sich der Text ändert
+    connect(m_editor->document(), &QTextDocument::contentsChanged,
+            this, [this]()
+    {
+        m_cacheFirstBlock = -1;
+        m_cacheLastBlock  = -1;
+        m_editor->viewport()->update();
+    });
+
+    // Auch beim Scrollen neu zeichnen (Cache bleibt gültig, nur Position ändert sich)
+    connect(m_editor->verticalScrollBar(), &QScrollBar::valueChanged,
+            this, [this]()
+    {
+        m_cacheFirstBlock = -1;
+        m_cacheLastBlock  = -1;
+    });
+}
+
+// ---------------------------------------------------------------------------
+// Paint – wird aus CodeEditor::paintEvent aufgerufen
+// ---------------------------------------------------------------------------
+void ColorIndicator::paint(QPainter &painter, QPaintEvent *event)
+{
+    rebuildCache();
+
+    const int squareSize = m_editor->fontMetrics().height() - 4;
+    const int radius     = 2;
+
+    for (const ColorMatch &m : m_cache)
+    {
+        if (!event->rect().intersects(m.rect))
+        {
+            continue;
+        }
+
+        // Rahmen
+        painter.setPen(QColor(0, 0, 0, 80));
+        painter.setBrush(m.color);
+        painter.drawRoundedRect(m.rect, radius, radius);
+
+        // Schachbrettmuster als Hintergrund für transparente Farben
+        if (m.color.alpha() < 255)
+        {
+            const int half = squareSize / 2;
+            painter.setPen(Qt::NoPen);
+            painter.setBrush(QColor(180, 180, 180));
+            painter.drawRect(m.rect.x(),        m.rect.y(),        half, half);
+            painter.drawRect(m.rect.x() + half, m.rect.y() + half, half, half);
+            painter.setBrush(m.color);
+            painter.drawRoundedRect(m.rect, radius, radius);
+        }
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Mouse – wird aus CodeEditor::mousePressEvent aufgerufen
+// ---------------------------------------------------------------------------
+bool ColorIndicator::handleMousePress(QMouseEvent *event)
+{
+    for (const ColorMatch &m : m_cache)
+    {
+        if (!m.rect.contains(event->pos()))
+        {
+            continue;
+        }
+
+        // Farb-Dialog öffnen
+        QColorDialog dlg(m.color, m_editor);
+        dlg.setOption(QColorDialog::ShowAlphaChannel, true);
+        dlg.setWindowTitle(QObject::tr("Farbe wählen"));
+
+        if (dlg.exec() != QDialog::Accepted)
+        {
+            return true;
+        }
+
+        const QColor newColor = dlg.selectedColor();
+
+        // Ursprünglichen Farbwert im Dokument ersetzen
+        QTextBlock block = m_editor->document()->findBlockByNumber(m.blockNumber);
+        if (!block.isValid())
+        {
+            return true;
+        }
+
+        // Neuen Farbwert als Hex-String formatieren
+        QString newValue;
+        if (newColor.alpha() < 255)
+        {
+            newValue = newColor.name(QColor::HexArgb); // #aarrggbb
+            // CSS erwartet #rrggbbaa — Bytes umstellen
+            // Qt liefert #aarrggbb, CSS will #rrggbbaa
+            newValue = QString("#%1%2%3%4")
+                .arg(newColor.red(),   2, 16, QChar('0'))
+                .arg(newColor.green(), 2, 16, QChar('0'))
+                .arg(newColor.blue(),  2, 16, QChar('0'))
+                .arg(newColor.alpha(), 2, 16, QChar('0'));
+        }
+        else
+        {
+            newValue = newColor.name(QColor::HexRgb); // #rrggbb
+        }
+
+        QTextCursor cursor(block);
+        cursor.setPosition(block.position() + m.posInBlock);
+        cursor.setPosition(block.position() + m.posInBlock + m.length,
+                           QTextCursor::KeepAnchor);
+        cursor.insertText(newValue);
+
+        // Cache invalidieren
+        m_cache.clear();
+        m_cacheFirstBlock = -1;
+        m_cacheLastBlock  = -1;
+
+        return true;
+    }
+
+    return false;
+}
+
+// ---------------------------------------------------------------------------
+// Cache aufbauen – nur für sichtbare Blöcke
+// ---------------------------------------------------------------------------
+void ColorIndicator::rebuildCache()
+{
+    QTextBlock firstVisible = m_editor->firstVisibleBlockPublic();
+    const int  firstNum     = firstVisible.blockNumber();
+
+    // Letzten sichtbaren Block bestimmen
+    int lastNum = firstNum;
+    {
+        QTextBlock b   = firstVisible;
+        const int  bot = m_editor->viewport()->height();
+        while (b.isValid())
+        {
+            const QRectF r = m_editor->blockBoundingGeometryPublic(b)
+                                 .translated(m_editor->contentOffsetPublic());
+            if (r.top() > bot)
+            {
+                break;
+            }
+            lastNum = b.blockNumber();
+            b = b.next();
+        }
+    }
+
+    // Cache noch aktuell?
+    if (firstNum == m_cacheFirstBlock && lastNum == m_cacheLastBlock)
+    {
+        return;
+    }
+
+    m_cache.clear();
+    m_cacheFirstBlock = firstNum;
+    m_cacheLastBlock  = lastNum;
+
+    const int squareSize = m_editor->fontMetrics().height() - 4;
+    const int scrollX    = m_editor->horizontalScrollBar()->value();
+
+    QTextBlock block = firstVisible;
+    while (block.isValid() && block.blockNumber() <= lastNum)
+    {
+        const QRectF blockRect = m_editor->blockBoundingGeometryPublic(block)
+                                     .translated(m_editor->contentOffsetPublic());
+
+        const QList<ColorMatch> found = findColorsInBlock(block.text(),
+                                                           block.blockNumber());
+        for (ColorMatch m : found)
+        {
+            // X-Position des Farbwerts im Viewport berechnen
+            const QTextLayout *layout = block.layout();
+            if (!layout || layout->lineCount() == 0)
+            {
+                continue;
+            }
+
+            const QTextLine line  = layout->lineAt(0);
+            // Position nach dem Ende des Farbwerts
+            const qreal endCharX  = line.cursorToX(m.posInBlock + m.length);
+            const int   x         = static_cast<int>(blockRect.left() + endCharX)
+                                    - scrollX + 3;
+
+            if (x + squareSize > m_editor->viewport()->width())
+            {
+                continue;
+            }
+
+            const int y = static_cast<int>(blockRect.top())
+                        + (static_cast<int>(blockRect.height()) - squareSize) / 2;
+
+            m.rect = QRect(x, y, squareSize, squareSize);
+            m_cache.append(m);
+        }
+
+        block = block.next();
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Farbwerte in einer Zeile suchen
+// ---------------------------------------------------------------------------
+QList<ColorIndicator::ColorMatch> ColorIndicator::findColorsInBlock(
+    const QString &text, int blockNumber) const
+{
+    QList<ColorMatch> result;
+
+    QRegularExpressionMatchIterator it = s_colorRegex.globalMatch(text);
+    while (it.hasNext())
+    {
+        QRegularExpressionMatch match = it.next();
+        const QString token = match.captured(0);
+        const QColor  color = parseColor(token);
+
+        if (!color.isValid())
+        {
+            continue;
+        }
+
+        ColorMatch m;
+        m.blockNumber = blockNumber;
+        m.posInBlock  = static_cast<int>(match.capturedStart());
+        m.length      = static_cast<int>(match.capturedLength());
+        m.color       = color;
+        result.append(m);
+    }
+
+    return result;
+}
+
+// ---------------------------------------------------------------------------
+// Farb-Parser
+// ---------------------------------------------------------------------------
+QColor ColorIndicator::parseColor(const QString &token)
+{
+    const QString t = token.trimmed();
+
+    if (t.startsWith('#'))                                        { return parseHex(t);   }
+    if (t.startsWith("rgba", Qt::CaseInsensitive))                { return parseRgba(t);  }
+    if (t.startsWith("rgb",  Qt::CaseInsensitive))                { return parseRgb(t);   }
+    if (t.startsWith("hsla", Qt::CaseInsensitive))                { return parseHsla(t);  }
+    if (t.startsWith("hsl",  Qt::CaseInsensitive))                { return parseHsl(t);   }
+
+    return QColor();
+}
+
+QColor ColorIndicator::parseHex(const QString &s)
+{
+    // #rgb → #rrggbb
+    if (s.length() == 4)
+    {
+        return QColor(QString("#%1%1%2%2%3%3")
+            .arg(s[1]).arg(s[2]).arg(s[3]));
+    }
+    // #rrggbb
+    if (s.length() == 7)
+    {
+        return QColor(s);
+    }
+    // #rrggbbaa (CSS) → Qt braucht #aarrggbb
+    if (s.length() == 9)
+    {
+        const QString rr = s.mid(1, 2);
+        const QString gg = s.mid(3, 2);
+        const QString bb = s.mid(5, 2);
+        const QString aa = s.mid(7, 2);
+        return QColor(QString("#%1%2%3%4").arg(aa, rr, gg, bb));
+    }
+    return QColor();
+}
+
+QColor ColorIndicator::parseRgb(const QString &s)
+{
+    // rgb(r, g, b)
+    static const QRegularExpression re(
+        R"(rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\))",
+        QRegularExpression::CaseInsensitiveOption);
+    QRegularExpressionMatch m = re.match(s);
+    if (!m.hasMatch()) { return QColor(); }
+    return QColor(m.captured(1).toInt(),
+                  m.captured(2).toInt(),
+                  m.captured(3).toInt());
+}
+
+QColor ColorIndicator::parseRgba(const QString &s)
+{
+    // rgba(r, g, b, a)  — a ist 0.0–1.0
+    static const QRegularExpression re(
+        R"(rgba\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*,\s*([0-9.]+)\s*\))",
+        QRegularExpression::CaseInsensitiveOption);
+    QRegularExpressionMatch m = re.match(s);
+    if (!m.hasMatch()) { return QColor(); }
+    return QColor(m.captured(1).toInt(),
+                  m.captured(2).toInt(),
+                  m.captured(3).toInt(),
+                  qRound(m.captured(4).toDouble() * 255.0));
+}
+
+QColor ColorIndicator::parseHsl(const QString &s)
+{
+    // hsl(h, s%, l%)
+    static const QRegularExpression re(
+        R"(hsl\s*\(\s*(\d+)\s*,\s*(\d+)%\s*,\s*(\d+)%\s*\))",
+        QRegularExpression::CaseInsensitiveOption);
+    QRegularExpressionMatch m = re.match(s);
+    if (!m.hasMatch()) { return QColor(); }
+    QColor c;
+    c.setHsl(m.captured(1).toInt(),
+             qRound(m.captured(2).toInt() * 2.55),
+             qRound(m.captured(3).toInt() * 2.55));
+    return c;
+}
+
+QColor ColorIndicator::parseHsla(const QString &s)
+{
+    // hsla(h, s%, l%, a)
+    static const QRegularExpression re(
+        R"(hsla\s*\(\s*(\d+)\s*,\s*(\d+)%\s*,\s*(\d+)%\s*,\s*([0-9.]+)\s*\))",
+        QRegularExpression::CaseInsensitiveOption);
+    QRegularExpressionMatch m = re.match(s);
+    if (!m.hasMatch()) { return QColor(); }
+    QColor c;
+    c.setHsl(m.captured(1).toInt(),
+             qRound(m.captured(2).toInt() * 2.55),
+             qRound(m.captured(3).toInt() * 2.55),
+             qRound(m.captured(4).toDouble() * 255.0));
+    return c;
+}
+
+
+

barecode/src/editor/ColorIndicator.h

@@ -0,0 +1,67 @@
+#pragma once
+
+#include <QObject>
+#include <QColor>
+#include <QRect>
+#include <QList>
+#include <QRegularExpression>
+#include <QString>
+
+class CodeEditor;
+class QPainter;
+class QPaintEvent;
+class QMouseEvent;
+
+// ---------------------------------------------------------------------------
+// ColorIndicator – Zeichnet kleine Farbquadrate neben CSS-Farbwerten und
+// öffnet einen QColorDialog wenn der Nutzer darauf klickt.
+//
+// Unterstützte Formate:
+//   #rgb  #rrggbb  #rrggbbaa
+//   rgb(r, g, b)   rgba(r, g, b, a)
+//   hsl(h, s%, l%) hsla(h, s%, l%, a)
+//   140 benannte CSS-Farben (red, blue, cornflowerblue, ...)
+// ---------------------------------------------------------------------------
+class ColorIndicator : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit ColorIndicator(CodeEditor *editor);
+
+    // Wird aus CodeEditor::paintEvent aufgerufen
+    void paint(QPainter &painter, QPaintEvent *event);
+
+    // Wird aus CodeEditor::mousePressEvent aufgerufen
+    // Gibt true zurück wenn der Klick auf einem Farbquadrat war
+    bool handleMousePress(QMouseEvent *event);
+
+private:
+    struct ColorMatch
+    {
+        QRect   rect;       // Position des Quadrats im Viewport
+        QColor  color;      // Erkannte Farbe
+        int     blockNumber;
+        int     posInBlock; // Zeichenposition des Farbwerts im Block
+        int     length;     // Länge des Farbwerts im Text
+    };
+
+    void            rebuildCache();
+    QList<ColorMatch> findColorsInBlock(const QString &text,
+                                         int blockNumber) const;
+
+    static QColor   parseColor(const QString &token);
+    static QColor   parseHex(const QString &s);
+    static QColor   parseRgb(const QString &s);
+    static QColor   parseRgba(const QString &s);
+    static QColor   parseHsl(const QString &s);
+    static QColor   parseHsla(const QString &s);
+
+    CodeEditor             *m_editor = nullptr;
+    QList<ColorMatch>       m_cache;
+    int                     m_cacheFirstBlock = -1;
+    int                     m_cacheLastBlock  = -1;
+
+    // Kombinierter Regex für alle Farbformate
+    static const QRegularExpression s_colorRegex;
+};

barecode/src/editor/DeadCodeAnalyzer.cpp

@@ -0,0 +1,181 @@
+#include "DeadCodeAnalyzer.h"
+
+#include <QDir>
+#include <QDirIterator>
+#include <QFile>
+#include <QTextStream>
+#include <QRegularExpression>
+#include <QSet>
+#include <QFileInfo>
+
+DeadCodeAnalyzer::DeadCodeAnalyzer(QObject *parent)
+    : QObject(parent)
+{
+    m_scanner = new FunctionScanner(this);
+}
+
+QList<DeadCodeAnalyzer::DeadFunction> DeadCodeAnalyzer::analyze(
+    const QString     &projectRoot,
+    const QStringList &extensions,
+    const QStringList &excludeDirs) const
+{
+    // -----------------------------------------------------------------------
+    // Schritt 1: Alle Dateien sammeln (mit Exclude-Filter)
+    // -----------------------------------------------------------------------
+    QStringList allFiles;
+    QDirIterator it(projectRoot, extensions, QDir::Files,
+                    QDirIterator::Subdirectories);
+
+    while (it.hasNext())
+    {
+        const QString path = it.next();
+
+        // Exclude-Verzeichnisse prüfen
+        bool excluded = false;
+        if (!excludeDirs.isEmpty())
+        {
+            const QStringList parts = path.split('/');
+            for (const QString &excl : excludeDirs)
+            {
+                if (parts.contains(excl.trimmed(), Qt::CaseInsensitive))
+                {
+                    excluded = true;
+                    break;
+                }
+            }
+        }
+
+        if (!excluded)
+        {
+            allFiles.append(path);
+        }
+    }
+
+    const int totalFiles = allFiles.size();
+
+    // -----------------------------------------------------------------------
+    // Schritt 2: Alle Funktionsdefinitionen aus nicht-excluded Dateien
+    // -----------------------------------------------------------------------
+    QHash<QString, FunctionScanner::FunctionInfo> definitions;
+
+    for (const QString &path : allFiles)
+    {
+        const QList<FunctionScanner::FunctionInfo> funcs = m_scanner->scanFile(path);
+        for (const FunctionScanner::FunctionInfo &func : funcs)
+        {
+            if (func.name.startsWith("__"))
+            {
+                continue;
+            }
+            const QString key = func.name.toLower();
+            if (!definitions.contains(key))
+            {
+                definitions.insert(key, func);
+            }
+        }
+    }
+
+    if (definitions.isEmpty())
+    {
+        return {};
+    }
+
+    // -----------------------------------------------------------------------
+    // Schritt 3: Alle Dateien EINMAL lesen, alle Aufrufe sammeln
+    // -----------------------------------------------------------------------
+    QSet<QString> calledFunctions;
+
+    static const QRegularExpression identifierRegex(
+        R"((?:->|::|\b)([a-zA-Z_\x80-\xff][a-zA-Z0-9_\x80-\xff]*)\s*\()"
+        R"(|['"]([a-zA-Z_\x80-\xff][a-zA-Z0-9_\x80-\xff]*)['"])"
+    );
+
+    static const QRegularExpression defLineRegex(
+        R"(\bfunction\s+([a-zA-Z_\x80-\xff][a-zA-Z0-9_\x80-\xff]*))"
+    );
+
+    int filesScanned = 0;
+
+    for (const QString &filePath : allFiles)
+    {
+        ++filesScanned;
+
+        // Fortschritt signalisieren
+        emit progressUpdate(filesScanned, totalFiles,
+                            QFileInfo(filePath).fileName());
+
+        QFile file(filePath);
+        if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
+        {
+            continue;
+        }
+
+        QTextStream stream(&file);
+        stream.setEncoding(QStringConverter::Utf8);
+
+        while (!stream.atEnd())
+        {
+            const QString line    = stream.readLine();
+            const QString trimmed = line.trimmed();
+
+            if (trimmed.startsWith("//") ||
+                trimmed.startsWith("*")  ||
+                trimmed.startsWith("#")  ||
+                trimmed.startsWith("/*"))
+            {
+                continue;
+            }
+
+            // Definitionen auf dieser Zeile nicht als Aufruf werten
+            QSet<QString> definedOnThisLine;
+            {
+                QRegularExpressionMatchIterator dit = defLineRegex.globalMatch(line);
+                while (dit.hasNext())
+                {
+                    definedOnThisLine.insert(dit.next().captured(1).toLower());
+                }
+            }
+
+            QRegularExpressionMatchIterator mit = identifierRegex.globalMatch(line);
+            while (mit.hasNext())
+            {
+                const QRegularExpressionMatch match = mit.next();
+                const QString name = match.captured(1).isEmpty()
+                                     ? match.captured(2).toLower()
+                                     : match.captured(1).toLower();
+
+                if (name.isEmpty() || definedOnThisLine.contains(name))
+                {
+                    continue;
+                }
+
+                if (definitions.contains(name))
+                {
+                    calledFunctions.insert(name);
+                }
+            }
+        }
+    }
+
+    // -----------------------------------------------------------------------
+    // Schritt 4: Nicht aufgerufene Funktionen zurückgeben
+    // -----------------------------------------------------------------------
+    QList<DeadFunction> dead;
+
+    for (auto it2 = definitions.begin(); it2 != definitions.end(); ++it2)
+    {
+        if (!calledFunctions.contains(it2.key()))
+        {
+            const FunctionScanner::FunctionInfo &func = it2.value();
+            DeadFunction d;
+            d.info   = func;
+            d.reason = func.className.isEmpty()
+                ? QObject::tr("Globale Funktion — kein Aufruf gefunden")
+                : QObject::tr("Methode von %1 — kein Aufruf gefunden")
+                      .arg(func.className);
+            dead.append(d);
+        }
+    }
+
+    return dead;
+}

barecode/src/editor/DeadCodeAnalyzer.h

@@ -0,0 +1,39 @@
+#pragma once
+
+#include <QObject>
+#include <QString>
+#include <QStringList>
+#include <QList>
+
+#include "FunctionScanner.h"
+
+// ---------------------------------------------------------------------------
+// DeadCodeAnalyzer – Findet Funktionen die definiert aber nie aufgerufen werden.
+// ---------------------------------------------------------------------------
+class DeadCodeAnalyzer : public QObject
+{
+    Q_OBJECT
+
+public:
+    struct DeadFunction
+    {
+        FunctionScanner::FunctionInfo info;
+        QString                       reason;
+    };
+
+    explicit DeadCodeAnalyzer(QObject *parent = nullptr);
+
+    // excludeDirs: Verzeichnisnamen die komplett übersprungen werden
+    // z.B. {"vendor", "lib", "node_modules"}
+    QList<DeadFunction> analyze(const QString     &projectRoot,
+                                const QStringList &extensions  = {"*.php"},
+                                const QStringList &excludeDirs = {}) const;
+
+signals:
+    // Fortschritt während der Analyse (läuft im Thread)
+    void progressUpdate(int filesScanned, int filesTotal,
+                        const QString &currentFile) const;
+
+private:
+    FunctionScanner *m_scanner = nullptr;
+};

barecode/src/editor/DeadCodeDialog.cpp

@@ -0,0 +1,461 @@
+#include "DeadCodeDialog.h"
+
+#include <QtConcurrent/QtConcurrent>
+#include <QFileInfo>
+#include <QDir>
+#include <QFont>
+#include <QSettings>
+#include <QCloseEvent>
+#include <QFileDialog>
+#include <QTextStream>
+#include <QMessageBox>
+#include <QHeaderView>
+#include <QDateTime>
+#include <QMetaObject>
+
+DeadCodeDialog::DeadCodeDialog(QWidget *parent)
+    : QDialog(parent, Qt::Window)
+{
+    setWindowTitle(tr("Tote Funktionen – BareCode"));
+    setMinimumSize(650, 500);
+
+    QSettings s(QSettings::IniFormat, QSettings::UserScope, "BareCode", "BareCode");
+    if (s.contains("deadcode/geometry"))
+    {
+        restoreGeometry(s.value("deadcode/geometry").toByteArray());
+    }
+    else
+    {
+        resize(780, 620);
+    }
+
+    m_analyzer = new DeadCodeAnalyzer(this);
+    m_watcher  = new QFutureWatcher<QList<DeadCodeAnalyzer::DeadFunction>>(this);
+
+    connect(m_watcher, &QFutureWatcher<QList<DeadCodeAnalyzer::DeadFunction>>::finished,
+            this, &DeadCodeDialog::onAnalysisFinished);
+
+    // Fortschritts-Signal aus dem Analyzer-Thread sicher in den UI-Thread leiten
+    connect(m_analyzer, &DeadCodeAnalyzer::progressUpdate,
+            this, &DeadCodeDialog::onProgressUpdate,
+            Qt::QueuedConnection);
+
+    setupUi();
+}
+
+// ---------------------------------------------------------------------------
+// UI
+// ---------------------------------------------------------------------------
+void DeadCodeDialog::setupUi()
+{
+    QVBoxLayout *root = new QVBoxLayout(this);
+    root->setSpacing(8);
+    root->setContentsMargins(12, 12, 12, 12);
+
+    // ---- Warnbox ----
+    QFrame *warningBox = new QFrame(this);
+    warningBox->setStyleSheet(
+        "QFrame {"
+        "  background: #3a2a00;"
+        "  border: 1px solid #7a5a00;"
+        "  border-radius: 4px;"
+        "}"
+    );
+    QHBoxLayout *warnLayout = new QHBoxLayout(warningBox);
+    warnLayout->setContentsMargins(8, 6, 8, 6);
+
+    QLabel *warnIcon = new QLabel(warningBox);
+    warnIcon->setFixedSize(20, 20);
+    warnIcon->setStyleSheet(
+        "background: #ffcc00;"
+        "color: #1a1a00;"
+        "font-weight: bold;"
+        "font-size: 13px;"
+        "border-radius: 10px;"
+    );
+    warnIcon->setText("!");
+    warnIcon->setAlignment(Qt::AlignCenter);
+    warnLayout->addWidget(warnIcon);
+
+    QLabel *warnText = new QLabel(
+        tr("Kandidatenliste — kein Aufruf per Regex gefunden. "
+           "Dynamische Aufrufe (call_user_func, Strings, Hooks) werden nicht erkannt. "
+           "Bitte vor dem Löschen manuell prüfen."),
+        warningBox
+    );
+    warnText->setWordWrap(true);
+    warnText->setStyleSheet("color: #ffcc88;");
+    warnLayout->addWidget(warnText, 1);
+    root->addWidget(warningBox);
+
+    // ---- Exclude-Verzeichnisse ----
+    QHBoxLayout *excludeRow = new QHBoxLayout();
+    excludeRow->addWidget(new QLabel(tr("Ausschließen:"), this));
+
+    m_excludeEdit = new QLineEdit(this);
+    m_excludeEdit->setPlaceholderText(tr("vendor lib node_modules  (leerzeichen-getrennt)"));
+    m_excludeEdit->setToolTip(tr(
+        "Verzeichnisnamen die bei der Analyse übersprungen werden.\n"
+        "Leerzeichen-getrennt, z.B.: vendor lib node_modules cache"
+    ));
+
+    // Letzte Einstellung wiederherstellen
+    QSettings s(QSettings::IniFormat, QSettings::UserScope, "BareCode", "BareCode");
+    m_excludeEdit->setText(s.value("deadcode/excludeDirs", "vendor lib node_modules").toString());
+
+    excludeRow->addWidget(m_excludeEdit, 1);
+
+    // Verzeichnis-Auswahl Button
+    QPushButton *btnBrowse = new QPushButton(tr("+ Verzeichnis"), this);
+    btnBrowse->setToolTip(tr("Verzeichnis aus dem Projekt auswählen und zur Ausschlussliste hinzufügen"));
+    connect(btnBrowse, &QPushButton::clicked, this, [this]()
+    {
+        const QString startPath = m_projectRoot.isEmpty()
+                                  ? QDir::homePath()
+                                  : m_projectRoot;
+
+        const QString dir = QFileDialog::getExistingDirectory(
+            this,
+            tr("Verzeichnis ausschließen"),
+            startPath,
+            QFileDialog::ShowDirsOnly | QFileDialog::DontResolveSymlinks
+        );
+
+        if (dir.isEmpty())
+        {
+            return;
+        }
+
+        // Nur den letzten Verzeichnisnamen verwenden, nicht den vollen Pfad
+        // So funktioniert der Exclude auch für gleichnamige Unterverzeichnisse
+        const QString dirName = QFileInfo(dir).fileName();
+
+        // Prüfen ob bereits in der Liste
+        const QStringList current = m_excludeEdit->text()
+                                        .simplified()
+                                        .split(' ', Qt::SkipEmptyParts);
+        if (current.contains(dirName, Qt::CaseInsensitive))
+        {
+            return;
+        }
+
+        // Anhängen
+        QString newText = m_excludeEdit->text().trimmed();
+        if (!newText.isEmpty())
+        {
+            newText += ' ';
+        }
+        newText += dirName;
+        m_excludeEdit->setText(newText);
+    });
+    excludeRow->addWidget(btnBrowse);
+
+    // Löschen-Button — ganzes Feld leeren
+    QPushButton *btnClear = new QPushButton(tr("✕"), this);
+    btnClear->setFixedWidth(28);
+    btnClear->setFlat(true);
+    btnClear->setToolTip(tr("Ausschlussliste leeren"));
+    connect(btnClear, &QPushButton::clicked, this, [this]()
+    {
+        m_excludeEdit->clear();
+    });
+    excludeRow->addWidget(btnClear);
+
+    root->addLayout(excludeRow);
+
+    // ---- Steuerleiste ----
+    QHBoxLayout *ctrlRow = new QHBoxLayout();
+
+    m_btnAnalyze = new QPushButton(tr("Analyse starten"), this);
+    ctrlRow->addWidget(m_btnAnalyze);
+
+    m_btnExport = new QPushButton(tr("Als TXT exportieren"), this);
+    m_btnExport->setEnabled(false);
+    ctrlRow->addWidget(m_btnExport);
+
+    ctrlRow->addStretch();
+
+    m_statusLabel = new QLabel(this);
+    m_statusLabel->setStyleSheet("color: palette(mid);");
+    ctrlRow->addWidget(m_statusLabel);
+
+    root->addLayout(ctrlRow);
+
+    // ---- Fortschrittsbereich ----
+    m_progress = new QProgressBar(this);
+    m_progress->setRange(0, 100);
+    m_progress->setTextVisible(true);
+    m_progress->setFormat("%v / %m Dateien");
+    m_progress->hide();
+    root->addWidget(m_progress);
+
+    m_progressLabel = new QLabel(this);
+    m_progressLabel->setStyleSheet("color: palette(mid); font-size: 11px;");
+    m_progressLabel->hide();
+    root->addWidget(m_progressLabel);
+
+    // ---- Ergebnistabelle ----
+    m_results = new QTreeWidget(this);
+    m_results->setColumnCount(4);
+    m_results->setHeaderLabels({
+        tr("Funktion"),
+        tr("Klasse"),
+        tr("Datei"),
+        tr("Zeile")
+    });
+    m_results->setRootIsDecorated(false);
+    m_results->setAlternatingRowColors(true);
+    m_results->setSortingEnabled(true);
+    m_results->sortByColumn(0, Qt::AscendingOrder);
+    m_results->setSelectionMode(QAbstractItemView::SingleSelection);
+
+    m_results->header()->setSectionResizeMode(0, QHeaderView::Interactive);
+    m_results->header()->setSectionResizeMode(1, QHeaderView::Interactive);
+    m_results->header()->setSectionResizeMode(2, QHeaderView::Stretch);
+    m_results->header()->setSectionResizeMode(3, QHeaderView::Fixed);
+    m_results->header()->resizeSection(0, 200);
+    m_results->header()->resizeSection(1, 120);
+    m_results->header()->resizeSection(3, 60);
+
+    QFont mono("Monospace");
+    mono.setStyleHint(QFont::Monospace);
+    m_results->setFont(mono);
+
+    root->addWidget(m_results, 1);
+
+    // ---- Verbindungen ----
+    connect(m_btnAnalyze, &QPushButton::clicked, this, &DeadCodeDialog::onAnalyze);
+    connect(m_btnExport,  &QPushButton::clicked, this, &DeadCodeDialog::onExportClicked);
+    connect(m_results, &QTreeWidget::itemActivated,
+            this, &DeadCodeDialog::onItemActivated);
+}
+
+// ---------------------------------------------------------------------------
+// Öffentliche Schnittstelle
+// ---------------------------------------------------------------------------
+void DeadCodeDialog::setProjectRoot(const QString &path)
+{
+    // Alte Exclude-Liste für das vorherige Projekt speichern
+    if (!m_projectRoot.isEmpty())
+    {
+        QSettings s(QSettings::IniFormat, QSettings::UserScope, "BareCode", "BareCode");
+        const QString oldKey = "deadcode/exclude/" +
+                               QString(m_projectRoot).replace('/', '_').replace('\\', '_');
+        s.setValue(oldKey, m_excludeEdit->text());
+    }
+
+    m_projectRoot = path;
+    m_results->clear();
+    m_statusLabel->setText(QString());
+    m_btnExport->setEnabled(false);
+
+    // Exclude-Liste für das neue Projekt laden
+    if (!path.isEmpty())
+    {
+        QSettings s(QSettings::IniFormat, QSettings::UserScope, "BareCode", "BareCode");
+        const QString key = "deadcode/exclude/" +
+                            QString(path).replace('/', '_').replace('\\', '_');
+
+        // Projektspezifisch vorhanden? Sonst globalen Fallback nehmen
+        const QString saved = s.value(key,
+            s.value("deadcode/excludeDirs", "vendor lib node_modules").toString()
+        ).toString();
+
+        m_excludeEdit->setText(saved);
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Analyse starten
+// ---------------------------------------------------------------------------
+void DeadCodeDialog::onAnalyze()
+{
+    if (m_projectRoot.isEmpty())
+    {
+        QMessageBox::information(this, tr("Analyse"),
+            tr("Bitte zuerst ein Projekt öffnen."));
+        return;
+    }
+
+    if (m_watcher->isRunning())
+    {
+        m_watcher->cancel();
+        m_watcher->waitForFinished();
+    }
+
+    // Exclude-Liste projektspezifisch speichern
+    QSettings s(QSettings::IniFormat, QSettings::UserScope, "BareCode", "BareCode");
+    const QString key = "deadcode/exclude/" +
+                        QString(m_projectRoot).replace('/', '_').replace('\\', '_');
+    s.setValue(key, m_excludeEdit->text());
+    s.setValue("deadcode/excludeDirs", m_excludeEdit->text()); // globaler Fallback
+
+    const QStringList excludeDirs = m_excludeEdit->text()
+                                        .simplified()
+                                        .split(' ', Qt::SkipEmptyParts);
+
+    m_results->clear();
+    m_btnAnalyze->setEnabled(false);
+    m_btnExport->setEnabled(false);
+    m_progress->setValue(0);
+    m_progress->setMaximum(0); // Unbestimmter Modus bis wir die Dateizahl kennen
+    m_progress->show();
+    m_progressLabel->setText(tr("Dateien werden gezählt…"));
+    m_progressLabel->show();
+    m_statusLabel->setText(tr("Analysiere…"));
+
+    const QString     root    = m_projectRoot;
+    DeadCodeAnalyzer *analyzer = m_analyzer;
+
+    QFuture<QList<DeadCodeAnalyzer::DeadFunction>> future =
+        QtConcurrent::run([analyzer, root, excludeDirs]()
+        {
+            return analyzer->analyze(root, {"*.php"}, excludeDirs);
+        });
+
+    m_watcher->setFuture(future);
+}
+
+// ---------------------------------------------------------------------------
+// Fortschritt aktualisieren (QueuedConnection — Thread-sicher)
+// ---------------------------------------------------------------------------
+void DeadCodeDialog::onProgressUpdate(int filesScanned, int filesTotal,
+                                       const QString &currentFile)
+{
+    if (m_progress->maximum() != filesTotal)
+    {
+        m_progress->setMaximum(filesTotal);
+    }
+    m_progress->setValue(filesScanned);
+    m_progressLabel->setText(tr("(%1 / %2)  %3")
+                                 .arg(filesScanned)
+                                 .arg(filesTotal)
+                                 .arg(currentFile));
+}
+
+// ---------------------------------------------------------------------------
+// Analyse abgeschlossen
+// ---------------------------------------------------------------------------
+void DeadCodeDialog::onAnalysisFinished()
+{
+    m_progress->hide();
+    m_progressLabel->hide();
+    m_btnAnalyze->setEnabled(true);
+
+    if (m_watcher->isCanceled())
+    {
+        return;
+    }
+
+    const QList<DeadCodeAnalyzer::DeadFunction> dead = m_watcher->result();
+
+    m_results->setSortingEnabled(false);
+
+    for (const DeadCodeAnalyzer::DeadFunction &d : dead)
+    {
+        QTreeWidgetItem *item = new QTreeWidgetItem(m_results);
+        item->setText(0, d.info.signature);
+        item->setText(1, d.info.className.isEmpty() ? tr("(global)") : d.info.className);
+        item->setText(2, QFileInfo(d.info.filePath).fileName());
+        item->setText(3, QString::number(d.info.line));
+        item->setToolTip(0, d.reason);
+        item->setToolTip(2, d.info.filePath);
+        item->setData(0, Qt::UserRole,     d.info.filePath);
+        item->setData(0, Qt::UserRole + 1, d.info.line);
+
+        if (d.info.className.isEmpty())
+        {
+            item->setForeground(1, QColor("#888888"));
+        }
+    }
+
+    m_results->setSortingEnabled(true);
+    m_results->sortByColumn(0, Qt::AscendingOrder);
+
+    if (dead.isEmpty())
+    {
+        m_statusLabel->setText(tr("✓ Keine ungenutzten Funktionen gefunden."));
+        m_statusLabel->setStyleSheet("color: #44bb44;");
+    }
+    else
+    {
+        m_statusLabel->setText(tr("%1 Kandidaten gefunden").arg(dead.size()));
+        m_statusLabel->setStyleSheet("color: palette(mid);");
+        m_btnExport->setEnabled(true);
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Klick auf Treffer
+// ---------------------------------------------------------------------------
+void DeadCodeDialog::onItemActivated(QTreeWidgetItem *item, int /*column*/)
+{
+    const QString path = item->data(0, Qt::UserRole).toString();
+    const int     line = item->data(0, Qt::UserRole + 1).toInt();
+    if (!path.isEmpty() && line > 0)
+    {
+        emit fileLineRequested(path, line);
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Export
+// ---------------------------------------------------------------------------
+void DeadCodeDialog::onExportClicked()
+{
+    const QString path = QFileDialog::getSaveFileName(
+        this,
+        tr("Ergebnis exportieren"),
+        QString("barecode_deadcode_%1.txt")
+            .arg(QDateTime::currentDateTime().toString("yyyyMMdd_HHmm")),
+        tr("Textdateien (*.txt)")
+    );
+    if (path.isEmpty()) { return; }
+
+    QFile file(path);
+    if (!file.open(QIODevice::WriteOnly | QIODevice::Text))
+    {
+        QMessageBox::warning(this, tr("Export"),
+            tr("Datei konnte nicht geschrieben werden:\n%1").arg(path));
+        return;
+    }
+
+    QTextStream out(&file);
+    out.setEncoding(QStringConverter::Utf8);
+
+    out << "BareCode – Analyse ungenutzter Funktionen\n";
+    out << "Projekt:       " << m_projectRoot << "\n";
+    out << "Ausgeschlossen: " << m_excludeEdit->text() << "\n";
+    out << "Datum:         " << QDateTime::currentDateTime().toString("dd.MM.yyyy HH:mm") << "\n";
+    out << QString("─").repeated(70) << "\n\n";
+
+    for (int i = 0; i < m_results->topLevelItemCount(); ++i)
+    {
+        QTreeWidgetItem *item = m_results->topLevelItem(i);
+        out << item->text(0) << "\n";
+        out << "  Klasse:  " << item->text(1) << "\n";
+        out << "  Datei:   " << item->toolTip(2) << "\n";
+        out << "  Zeile:   " << item->text(3) << "\n\n";
+    }
+
+    out << QString("─").repeated(70) << "\n";
+    out << m_results->topLevelItemCount() << " Kandidaten\n";
+    out << "Hinweis: Dynamische Aufrufe werden nicht erkannt.\n";
+
+    QMessageBox::information(this, tr("Export"),
+        tr("Exportiert nach:\n%1").arg(path));
+}
+
+// ---------------------------------------------------------------------------
+// Fenstergeometrie speichern
+// ---------------------------------------------------------------------------
+void DeadCodeDialog::closeEvent(QCloseEvent *event)
+{
+    if (m_watcher->isRunning())
+    {
+        m_watcher->cancel();
+    }
+    QSettings s(QSettings::IniFormat, QSettings::UserScope, "BareCode", "BareCode");
+    s.setValue("deadcode/geometry", saveGeometry());
+    event->accept();
+}

barecode/src/editor/DeadCodeDialog.h

@@ -0,0 +1,62 @@
+#pragma once
+
+#include <QDialog>
+#include <QTreeWidget>
+#include <QTreeWidgetItem>
+#include <QLabel>
+#include <QPushButton>
+#include <QProgressBar>
+#include <QLineEdit>
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+#include <QFutureWatcher>
+#include <QString>
+
+#include "DeadCodeAnalyzer.h"
+
+class DeadCodeDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit DeadCodeDialog(QWidget *parent = nullptr);
+
+    void setProjectRoot(const QString &path);
+
+signals:
+    void fileLineRequested(const QString &filePath, int line);
+
+private slots:
+    void onAnalyze();
+    void onAnalysisFinished();
+    void onProgressUpdate(int filesScanned, int filesTotal,
+                          const QString &currentFile);
+    void onItemActivated(QTreeWidgetItem *item, int column);
+    void onExportClicked();
+
+protected:
+    void closeEvent(QCloseEvent *event) override;
+
+private:
+    void setupUi();
+
+    QString        m_projectRoot;
+
+    // Einstellungen
+    QLineEdit     *m_excludeEdit   = nullptr;
+
+    // Steuerung
+    QPushButton   *m_btnAnalyze    = nullptr;
+    QPushButton   *m_btnExport     = nullptr;
+
+    // Fortschritt
+    QProgressBar  *m_progress      = nullptr;
+    QLabel        *m_progressLabel = nullptr;
+
+    // Status + Ergebnisse
+    QLabel        *m_statusLabel   = nullptr;
+    QTreeWidget   *m_results       = nullptr;
+
+    DeadCodeAnalyzer *m_analyzer   = nullptr;
+    QFutureWatcher<QList<DeadCodeAnalyzer::DeadFunction>> *m_watcher = nullptr;
+};

barecode/src/editor/EditorPanel.cpp

@@ -0,0 +1,301 @@
+#include "EditorPanel.h"
+#include "EditorTab.h"
+#include "CodeEditor.h"
+#include "SearchPanel.h"
+#include "FileSearchPanel.h"
+#include "FunctionListDialog.h"
+#include "DeadCodeDialog.h"
+#include "FunctionIndex.h"
+
+#include <QFileInfo>
+#include <QFile>
+#include <QTextDocument>
+#include <QTextBlock>
+
+EditorPanel::EditorPanel(Settings *settings, QWidget *parent)
+    : QWidget(parent)
+    , m_settings(settings)
+{
+    setupUi();
+}
+
+// ---------------------------------------------------------------------------
+// Setup
+// ---------------------------------------------------------------------------
+void EditorPanel::setupUi()
+{
+    m_layout = new QVBoxLayout(this);
+    m_layout->setContentsMargins(0, 0, 0, 0);
+    m_layout->setSpacing(0);
+
+    m_tabWidget = new QTabWidget(this);
+    m_tabWidget->setTabsClosable(true);
+    m_tabWidget->setMovable(true);
+    m_tabWidget->setDocumentMode(true);
+
+    m_searchPanel = new SearchPanel(this);
+    m_fileSearch  = new FileSearchPanel(this);
+    m_funcDialog  = new FunctionListDialog(window());
+    m_deadCode    = new DeadCodeDialog(window());
+    m_funcIndex   = new FunctionIndex(this);
+
+    m_layout->addWidget(m_tabWidget, 1);
+    m_layout->addWidget(m_searchPanel, 0);
+    m_layout->addWidget(m_fileSearch, 0);
+
+    connect(m_tabWidget, &QTabWidget::tabCloseRequested,
+            this, &EditorPanel::onTabCloseRequested);
+
+    connect(m_tabWidget, &QTabWidget::currentChanged,
+            this, &EditorPanel::onCurrentTabChanged);
+
+    connect(m_fileSearch, &FileSearchPanel::fileLineRequested,
+            this, &EditorPanel::goToLine);
+
+    connect(m_funcDialog, &FunctionListDialog::fileLineRequested,
+            this, &EditorPanel::goToLine);
+
+    connect(m_deadCode, &DeadCodeDialog::fileLineRequested,
+            this, &EditorPanel::goToLine);
+}
+
+// ---------------------------------------------------------------------------
+// Hilfsmethoden
+// ---------------------------------------------------------------------------
+EditorTab *EditorPanel::currentTab() const
+{
+    return qobject_cast<EditorTab *>(m_tabWidget->currentWidget());
+}
+
+int EditorPanel::findTabForFile(const QString &filePath) const
+{
+    EditorTab *tab = m_openTabs.value(filePath, nullptr);
+    return tab ? m_tabWidget->indexOf(tab) : -1;
+}
+
+// ---------------------------------------------------------------------------
+// Öffentliche Slots
+// ---------------------------------------------------------------------------
+void EditorPanel::openFile(const QString &filePath)
+{
+    const int existing = findTabForFile(filePath);
+    if (existing != -1)
+    {
+        m_tabWidget->setCurrentIndex(existing);
+        return;
+    }
+
+    EditorTab *tab = new EditorTab(filePath, m_settings, m_tabWidget);
+    const int index = m_tabWidget->addTab(tab, tab->fileName());
+    m_tabWidget->setCurrentIndex(index);
+    m_tabWidget->setTabToolTip(index, filePath);
+    m_openTabs.insert(filePath, tab);
+
+    // FunctionIndex dem Editor mitgeben für Doppelklick-Navigation
+    tab->editor()->setFunctionIndex(m_funcIndex);
+
+    // Doppelklick auf Funktion → zur Definition springen
+    connect(tab->editor(), &CodeEditor::navigateToRequested,
+            this, &EditorPanel::goToLine);
+
+    // Änderungsindikator im Tab-Titel (● = ungespeichert)
+    connect(tab->editor()->document(), &QTextDocument::modificationChanged,
+            this, [this, tab](bool modified)
+    {
+        const int idx = m_tabWidget->indexOf(tab);
+        if (idx == -1)
+        {
+            return;
+        }
+        const QString name = QFileInfo(tab->filePath()).fileName();
+        m_tabWidget->setTabText(idx, modified ? "● " + name : name);
+    });
+
+    // Tab-Titel nach "Speichern unter" aktualisieren (neuer Dateiname, kein Punkt)
+    connect(tab->editor(), &CodeEditor::fileSaved, this, [this, tab](const QString &savedPath)
+    {
+        const int idx = m_tabWidget->indexOf(tab);
+        if (idx != -1)
+        {
+            m_tabWidget->setTabText(idx, QFileInfo(savedPath).fileName());
+            m_tabWidget->setTabToolTip(idx, savedPath);
+        }
+        emit currentFileSaved(savedPath);
+
+        // Index und Funktionsliste aktualisieren
+        m_funcIndex->refresh();
+        if (m_funcDialog->isVisible())
+        {
+            m_funcDialog->refresh();
+        }
+    });
+}
+
+void EditorPanel::saveCurrentFile()
+{
+    if (EditorTab *tab = currentTab())
+    {
+        tab->save();
+    }
+}
+
+void EditorPanel::saveCurrentFileAs()
+{
+    if (EditorTab *tab = currentTab())
+    {
+        tab->saveAs();
+    }
+}
+
+void EditorPanel::saveAllFiles()
+{
+    for (int i = 0; i < m_tabWidget->count(); ++i)
+    {
+        EditorTab *tab = qobject_cast<EditorTab *>(m_tabWidget->widget(i));
+        if (tab && tab->isModified())
+        {
+            tab->save();
+        }
+    }
+}
+
+void EditorPanel::showSearchPanel()
+{
+    m_fileSearch->hide();
+    m_searchPanel->activate();
+}
+
+void EditorPanel::showFileSearchPanel()
+{
+    m_searchPanel->hide();
+    m_fileSearch->activate();
+}
+
+void EditorPanel::showFunctionList()
+{
+    m_funcDialog->show();
+    m_funcDialog->raise();
+    m_funcDialog->activateWindow();
+}
+
+void EditorPanel::showDeadCode()
+{
+    m_deadCode->show();
+    m_deadCode->raise();
+    m_deadCode->activateWindow();
+}
+
+void EditorPanel::setSearchRoot(const QString &path)
+{
+    m_fileSearch->setSearchRoot(path);
+    m_funcDialog->setProjectRoot(path);
+    m_deadCode->setProjectRoot(path);
+    m_funcIndex->setProjectRoot(path);
+}
+
+void EditorPanel::goToLine(const QString &filePath, int line)
+{
+    // Datei öffnen falls noch nicht geöffnet
+    openFile(filePath);
+
+    EditorTab *tab = m_openTabs.value(filePath, nullptr);
+    if (!tab)
+    {
+        return;
+    }
+
+    m_tabWidget->setCurrentWidget(tab);
+
+    // Zur gewünschten Zeile springen
+    CodeEditor *editor = tab->editor();
+    QTextBlock block = editor->document()->findBlockByLineNumber(line - 1);
+    if (block.isValid())
+    {
+        QTextCursor cursor(block);
+        cursor.movePosition(QTextCursor::StartOfBlock);
+        editor->setTextCursor(cursor);
+        editor->centerCursor();
+        editor->setFocus();
+    }
+}
+
+QStringList EditorPanel::openFilePaths() const
+{
+    QStringList paths;
+    for (int i = 0; i < m_tabWidget->count(); ++i)
+    {
+        EditorTab *tab = qobject_cast<EditorTab *>(m_tabWidget->widget(i));
+        if (tab)
+        {
+            paths.append(tab->filePath());
+        }
+    }
+    return paths;
+}
+
+QString EditorPanel::activeFilePath() const
+{
+    EditorTab *tab = currentTab();
+    return tab ? tab->filePath() : QString();
+}
+
+void EditorPanel::restoreSession(const QStringList &files, const QString &activeFile)
+{
+    for (const QString &path : files)
+    {
+        if (QFile::exists(path))
+        {
+            openFile(path);
+        }
+    }
+
+    // Aktiven Tab wiederherstellen
+    if (!activeFile.isEmpty())
+    {
+        const int idx = findTabForFile(activeFile);
+        if (idx != -1)
+        {
+            m_tabWidget->setCurrentIndex(idx);
+        }
+    }
+}
+
+void EditorPanel::undo()
+{
+    if (EditorTab *tab = currentTab())
+    {
+        tab->editor()->undo();
+    }
+}
+
+void EditorPanel::redo()
+{
+    if (EditorTab *tab = currentTab())
+    {
+        tab->editor()->redo();
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Private Slots
+// ---------------------------------------------------------------------------
+void EditorPanel::onTabCloseRequested(int index)
+{
+    EditorTab *tab = qobject_cast<EditorTab *>(m_tabWidget->widget(index));
+    if (!tab)
+    {
+        return;
+    }
+
+    m_openTabs.remove(tab->filePath());
+    m_tabWidget->removeTab(index);
+    tab->deleteLater();
+
+    m_searchPanel->setEditor(currentTab() ? currentTab()->editor() : nullptr);
+}
+
+void EditorPanel::onCurrentTabChanged(int /*index*/)
+{
+    EditorTab *tab = currentTab();
+    m_searchPanel->setEditor(tab ? tab->editor() : nullptr);
+}

barecode/src/editor/EditorPanel.h

@@ -0,0 +1,68 @@
+#pragma once
+
+#include <QWidget>
+#include <QTabWidget>
+#include <QVBoxLayout>
+#include <QHash>
+#include <QString>
+
+class EditorTab;
+class Settings;
+class SearchPanel;
+class FileSearchPanel;
+class FunctionListDialog;
+class DeadCodeDialog;
+class FunctionIndex;
+
+// ---------------------------------------------------------------------------
+// EditorPanel – Rechtes Panel: Tab-Leiste + Editoren + Such/Ersetzen-Panel.
+// ---------------------------------------------------------------------------
+class EditorPanel : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit EditorPanel(Settings *settings, QWidget *parent = nullptr);
+
+public slots:
+    void openFile(const QString &filePath);
+    void saveCurrentFile();
+    void saveCurrentFileAs();
+    void saveAllFiles();
+    void setSearchRoot(const QString &path);
+    void showSearchPanel();
+    void showFileSearchPanel();
+    void showFunctionList();
+    void showDeadCode();
+    void goToLine(const QString &filePath, int line);
+
+    // Session
+    QStringList openFilePaths() const;
+    QString     activeFilePath() const;
+    void        restoreSession(const QStringList &files, const QString &activeFile);
+    void undo();
+    void redo();
+
+signals:
+    void currentFileSaved(const QString &filePath);
+
+private slots:
+    void onTabCloseRequested(int index);
+    void onCurrentTabChanged(int index);
+
+private:
+    void       setupUi();
+    int        findTabForFile(const QString &filePath) const;
+    EditorTab *currentTab() const;
+
+    Settings           *m_settings    = nullptr;
+    QVBoxLayout        *m_layout      = nullptr;
+    QTabWidget         *m_tabWidget   = nullptr;
+    SearchPanel        *m_searchPanel = nullptr;
+    FileSearchPanel    *m_fileSearch  = nullptr;
+    FunctionListDialog *m_funcDialog  = nullptr;
+    DeadCodeDialog     *m_deadCode    = nullptr;
+    FunctionIndex      *m_funcIndex   = nullptr;
+
+    QHash<QString, EditorTab *> m_openTabs;
+};

barecode/src/editor/EditorTab.cpp

@@ -0,0 +1,53 @@
+#include "EditorTab.h"
+#include "CodeEditor.h"
+
+#include <QFileInfo>
+
+EditorTab::EditorTab(const QString &filePath, Settings *settings, QWidget *parent)
+    : QWidget(parent)
+    , m_filePath(filePath)
+{
+    m_layout = new QVBoxLayout(this);
+    m_layout->setContentsMargins(0, 0, 0, 0);
+    m_layout->setSpacing(0);
+
+    m_editor = new CodeEditor(settings, this);
+    m_editor->loadFile(filePath);
+
+    m_layout->addWidget(m_editor);
+}
+
+QString EditorTab::filePath() const
+{
+    return m_filePath;
+}
+
+QString EditorTab::fileName() const
+{
+    return QFileInfo(m_filePath).fileName();
+}
+
+CodeEditor *EditorTab::editor() const
+{
+    return m_editor;
+}
+
+bool EditorTab::isModified() const
+{
+    return m_editor->isModified();
+}
+
+bool EditorTab::save()
+{
+    const bool ok = m_editor->save();
+    // Path may have changed if this was an untitled buffer saved for the first time
+    m_filePath = m_editor->filePath();
+    return ok;
+}
+
+bool EditorTab::saveAs()
+{
+    const bool ok = m_editor->saveAs();
+    m_filePath = m_editor->filePath();
+    return ok;
+}

barecode/src/editor/EditorTab.h

@@ -0,0 +1,33 @@
+#pragma once
+
+#include <QWidget>
+#include <QString>
+#include <QVBoxLayout>
+
+class CodeEditor;
+class Settings;
+
+// ---------------------------------------------------------------------------
+// EditorTab – Widget placed inside each tab of the tab bar.
+// Owns a CodeEditor for a single file.
+// ---------------------------------------------------------------------------
+class EditorTab : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit EditorTab(const QString &filePath, Settings *settings, QWidget *parent = nullptr);
+
+    QString     filePath() const;
+    QString     fileName() const;
+    CodeEditor *editor()   const;
+    bool        isModified() const;
+
+    bool        save();
+    bool        saveAs();
+
+private:
+    QString      m_filePath;
+    QVBoxLayout *m_layout = nullptr;
+    CodeEditor  *m_editor = nullptr;
+};

barecode/src/editor/FileSearchPanel.cpp

@@ -0,0 +1,330 @@
+#include "FileSearchPanel.h"
+
+#include <QDir>
+#include <QDirIterator>
+#include <QFile>
+#include <QTextStream>
+#include <QRegularExpression>
+#include <QKeyEvent>
+#include <QtConcurrent/QtConcurrent>
+#include <QFuture>
+
+// ---------------------------------------------------------------------------
+// Konstruktor
+// ---------------------------------------------------------------------------
+FileSearchPanel::FileSearchPanel(QWidget *parent)
+    : QWidget(parent)
+{
+    setupUi();
+    hide();
+
+    m_watcher = new QFutureWatcher<QList<Match>>(this);
+    connect(m_watcher, &QFutureWatcher<QList<Match>>::finished,
+            this, &FileSearchPanel::onSearchFinished);
+}
+
+// ---------------------------------------------------------------------------
+// UI
+// ---------------------------------------------------------------------------
+void FileSearchPanel::setupUi()
+{
+    QVBoxLayout *root = new QVBoxLayout(this);
+    root->setContentsMargins(6, 4, 6, 4);
+    root->setSpacing(4);
+
+    // ---- Zeile 1: Suchbegriff ----
+    QHBoxLayout *row1 = new QHBoxLayout();
+    row1->addWidget(new QLabel(tr("Suchen in Dateien:"), this));
+
+    m_searchEdit = new QLineEdit(this);
+    m_searchEdit->setPlaceholderText(tr("Suchbegriff…"));
+    m_searchEdit->setClearButtonEnabled(true);
+    row1->addWidget(m_searchEdit, 1);
+
+    m_btnSearch = new QPushButton(tr("Suchen"), this);
+    m_btnSearch->setDefault(true);
+    row1->addWidget(m_btnSearch);
+
+    m_btnClose = new QPushButton(tr("✕"), this);
+    m_btnClose->setFixedWidth(24);
+    m_btnClose->setFlat(true);
+    m_btnClose->setToolTip(tr("Schließen"));
+    row1->addWidget(m_btnClose);
+
+    root->addLayout(row1);
+
+    // ---- Zeile 2: Optionen + Filter ----
+    QHBoxLayout *row2 = new QHBoxLayout();
+    m_chkCase  = new QCheckBox(tr("Groß-/Kleinschreibung"), this);
+    m_chkWord  = new QCheckBox(tr("Ganzes Wort"), this);
+    m_chkRegex = new QCheckBox(tr("Regex"), this);
+
+    row2->addWidget(m_chkCase);
+    row2->addWidget(m_chkWord);
+    row2->addWidget(m_chkRegex);
+    row2->addSpacing(12);
+
+    row2->addWidget(new QLabel(tr("Dateitypen:"), this));
+    m_filterEdit = new QLineEdit(this);
+    m_filterEdit->setText("*.html *.php *.css *.js *.c *.cpp *.h");
+    m_filterEdit->setFixedWidth(220);
+    m_filterEdit->setToolTip(tr("Leerzeichen-getrennte Muster, z.B.: *.php *.html"));
+    row2->addWidget(m_filterEdit);
+    row2->addStretch();
+
+    root->addLayout(row2);
+
+    // ---- Fortschritt + Status ----
+    m_progress = new QProgressBar(this);
+    m_progress->setRange(0, 0);   // Unbestimmter Modus
+    m_progress->setFixedHeight(4);
+    m_progress->hide();
+    root->addWidget(m_progress);
+
+    m_statusLabel = new QLabel(this);
+    m_statusLabel->setStyleSheet("color: palette(mid);");
+    root->addWidget(m_statusLabel);
+
+    // ---- Ergebnisliste ----
+    m_results = new QTreeWidget(this);
+    m_results->setHeaderHidden(true);
+    m_results->setRootIsDecorated(true);
+    m_results->setIndentation(16);
+    m_results->setUniformRowHeights(true);
+    m_results->setAlternatingRowColors(true);
+    root->addWidget(m_results, 1);
+
+    // ---- Verbindungen ----
+    connect(m_btnSearch, &QPushButton::clicked, this, &FileSearchPanel::onSearch);
+    connect(m_searchEdit, &QLineEdit::returnPressed, this, &FileSearchPanel::onSearch);
+    connect(m_btnClose, &QPushButton::clicked, this, [this]()
+    {
+        hide();
+    });
+    connect(m_results, &QTreeWidget::itemActivated,
+            this, &FileSearchPanel::onResultActivated);
+}
+
+// ---------------------------------------------------------------------------
+// Öffentliche Schnittstelle
+// ---------------------------------------------------------------------------
+void FileSearchPanel::setSearchRoot(const QString &path)
+{
+    m_searchRoot = path;
+}
+
+void FileSearchPanel::activate()
+{
+    show();
+    m_searchEdit->setFocus();
+    m_searchEdit->selectAll();
+}
+
+// ---------------------------------------------------------------------------
+// Suche starten
+// ---------------------------------------------------------------------------
+void FileSearchPanel::onSearch()
+{
+    const QString needle = m_searchEdit->text().trimmed();
+    if (needle.isEmpty())
+    {
+        return;
+    }
+
+    if (m_searchRoot.isEmpty())
+    {
+        m_statusLabel->setText(tr("Kein Projektverzeichnis geöffnet."));
+        return;
+    }
+
+    // Laufende Suche abbrechen
+    if (m_watcher->isRunning())
+    {
+        m_watcher->cancel();
+        m_watcher->waitForFinished();
+    }
+
+    m_results->clear();
+    m_statusLabel->setText(tr("Suche läuft…"));
+    m_progress->show();
+    m_btnSearch->setEnabled(false);
+
+    const QString      root       = m_searchRoot;
+    const bool         cs         = m_chkCase->isChecked();
+    const bool         word       = m_chkWord->isChecked();
+    const bool         regex      = m_chkRegex->isChecked();
+    const QStringList  extensions = m_filterEdit->text().simplified().split(' ',
+                                        Qt::SkipEmptyParts);
+
+    QFuture<QList<Match>> future = QtConcurrent::run(
+        [this, root, needle, cs, word, regex, extensions]()
+        {
+            return searchInFiles(root, needle, cs, word, regex, extensions);
+        }
+    );
+
+    m_watcher->setFuture(future);
+}
+
+// ---------------------------------------------------------------------------
+// Suchergebnisse anzeigen
+// ---------------------------------------------------------------------------
+void FileSearchPanel::onSearchFinished()
+{
+    m_progress->hide();
+    m_btnSearch->setEnabled(true);
+
+    if (m_watcher->isCanceled())
+    {
+        return;
+    }
+
+    const QList<Match> matches = m_watcher->result();
+
+    // Ergebnisse gruppiert nach Datei aufbauen
+    QString      currentFile;
+    QTreeWidgetItem *fileItem = nullptr;
+    int          fileCount   = 0;
+    int          matchCount  = 0;
+
+    for (const Match &m : matches)
+    {
+        if (m.filePath != currentFile)
+        {
+            currentFile = m.filePath;
+            ++fileCount;
+
+            fileItem = new QTreeWidgetItem(m_results);
+            fileItem->setText(0, QFileInfo(m.filePath).fileName());
+            fileItem->setToolTip(0, m.filePath);
+            fileItem->setData(0, Qt::UserRole, m.filePath);
+            fileItem->setData(0, Qt::UserRole + 1, -1);
+
+            QFont boldFont = fileItem->font(0);
+            boldFont.setBold(true);
+            fileItem->setFont(0, boldFont);
+            fileItem->setExpanded(true);
+        }
+
+        QTreeWidgetItem *lineItem = new QTreeWidgetItem(fileItem);
+        lineItem->setText(0, QString("  Zeile %1: %2")
+                              .arg(m.line)
+                              .arg(m.content.trimmed().left(120)));
+        lineItem->setToolTip(0, m.content.trimmed());
+        lineItem->setData(0, Qt::UserRole,     m.filePath);
+        lineItem->setData(0, Qt::UserRole + 1, m.line);
+
+        ++matchCount;
+    }
+
+    // Datei-Titelzeilen um Trefferanzahl ergänzen
+    for (int i = 0; i < m_results->topLevelItemCount(); ++i)
+    {
+        QTreeWidgetItem *item = m_results->topLevelItem(i);
+        const int count       = item->childCount();
+        item->setText(0, QString("%1  (%2 Treffer)")
+                           .arg(QFileInfo(item->data(0, Qt::UserRole).toString()).fileName())
+                           .arg(count));
+    }
+
+    if (matchCount == 0)
+    {
+        m_statusLabel->setText(tr("Keine Treffer gefunden."));
+    }
+    else
+    {
+        m_statusLabel->setText(tr("%1 Treffer in %2 Datei(en).")
+                                   .arg(matchCount)
+                                   .arg(fileCount));
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Klick auf Treffer → Datei + Zeile öffnen
+// ---------------------------------------------------------------------------
+void FileSearchPanel::onResultActivated(QTreeWidgetItem *item, int /*column*/)
+{
+    const QString path = item->data(0, Qt::UserRole).toString();
+    const int     line = item->data(0, Qt::UserRole + 1).toInt();
+
+    if (path.isEmpty() || line < 0)
+    {
+        // Datei-Titelzeile: nur auf-/zuklappen
+        item->setExpanded(!item->isExpanded());
+        return;
+    }
+
+    emit fileLineRequested(path, line);
+}
+
+// ---------------------------------------------------------------------------
+// Eigentliche Suchroutine (läuft in Thread-Pool)
+// ---------------------------------------------------------------------------
+QList<FileSearchPanel::Match> FileSearchPanel::searchInFiles(
+    const QString    &root,
+    const QString    &needle,
+    bool              caseSensitive,
+    bool              wholeWord,
+    bool              useRegex,
+    const QStringList &extensions) const
+{
+    QList<Match> results;
+
+    // Regulären Ausdruck vorbereiten
+    QString pattern = useRegex ? needle : QRegularExpression::escape(needle);
+    if (wholeWord)
+    {
+        pattern = "\\b" + pattern + "\\b";
+    }
+
+    QRegularExpression re(pattern,
+        caseSensitive
+            ? QRegularExpression::NoPatternOption
+            : QRegularExpression::CaseInsensitiveOption);
+
+    if (!re.isValid())
+    {
+        return results;
+    }
+
+    // Verzeichnis rekursiv durchsuchen
+    QDirIterator it(root,
+                    extensions.isEmpty()
+                        ? QStringList("*")
+                        : extensions,
+                    QDir::Files,
+                    QDirIterator::Subdirectories);
+
+    while (it.hasNext())
+    {
+        if (m_watcher->isCanceled())
+        {
+            break;
+        }
+
+        const QString filePath = it.next();
+
+        QFile file(filePath);
+        if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
+        {
+            continue;
+        }
+
+        QTextStream stream(&file);
+        stream.setEncoding(QStringConverter::Utf8);
+
+        int lineNumber = 0;
+        while (!stream.atEnd())
+        {
+            ++lineNumber;
+            const QString line = stream.readLine();
+
+            if (re.match(line).hasMatch())
+            {
+                results.append({ filePath, lineNumber, line });
+            }
+        }
+    }
+
+    return results;
+}

barecode/src/editor/FileSearchPanel.h

@@ -0,0 +1,77 @@
+#pragma once
+
+#include <QWidget>
+#include <QLineEdit>
+#include <QPushButton>
+#include <QCheckBox>
+#include <QTreeWidget>
+#include <QTreeWidgetItem>
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+#include <QLabel>
+#include <QProgressBar>
+#include <QFutureWatcher>
+#include <QString>
+#include <QStringList>
+
+// ---------------------------------------------------------------------------
+// FileSearchPanel – Suche in allen Dateien eines Verzeichnisses.
+//
+// Ergebnisse werden als aufklappbare Liste angezeigt:
+//   Dateiname (N Treffer)
+//     └ Zeile 12: <Zeileninhalt>
+//     └ Zeile 34: <Zeileninhalt>
+//
+// Klick auf einen Treffer öffnet die Datei im Editor und springt zur Zeile.
+// ---------------------------------------------------------------------------
+class FileSearchPanel : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit FileSearchPanel(QWidget *parent = nullptr);
+
+    void setSearchRoot(const QString &path);
+
+public slots:
+    void activate();
+
+signals:
+    void fileLineRequested(const QString &filePath, int line);
+
+private slots:
+    void onSearch();
+    void onResultActivated(QTreeWidgetItem *item, int column);
+    void onSearchFinished();
+
+private:
+    struct Match
+    {
+        QString filePath;
+        int     line;
+        QString content;
+    };
+
+    void setupUi();
+    QList<Match> searchInFiles(const QString &root,
+                               const QString &needle,
+                               bool caseSensitive,
+                               bool wholeWord,
+                               bool useRegex,
+                               const QStringList &extensions) const;
+
+    QString      m_searchRoot;
+
+    QLineEdit   *m_searchEdit   = nullptr;
+    QCheckBox   *m_chkCase      = nullptr;
+    QCheckBox   *m_chkWord      = nullptr;
+    QCheckBox   *m_chkRegex     = nullptr;
+    QLineEdit   *m_filterEdit   = nullptr;   // Dateiendungen-Filter
+    QPushButton *m_btnSearch    = nullptr;
+    QPushButton *m_btnClose     = nullptr;
+    QLabel      *m_statusLabel  = nullptr;
+    QTreeWidget *m_results      = nullptr;
+    QProgressBar *m_progress    = nullptr;
+
+    QFutureWatcher<QList<Match>> *m_watcher = nullptr;
+};

barecode/src/editor/FunctionIndex.cpp

@@ -0,0 +1,83 @@
+#include "FunctionIndex.h"
+
+#include <QtConcurrent/QtConcurrent>
+
+FunctionIndex::FunctionIndex(QObject *parent)
+    : QObject(parent)
+{
+    m_scanner = new FunctionScanner(this);
+    m_watcher = new QFutureWatcher<QList<FunctionScanner::FunctionInfo>>(this);
+
+    connect(m_watcher, &QFutureWatcher<QList<FunctionScanner::FunctionInfo>>::finished,
+            this, &FunctionIndex::onScanFinished);
+}
+
+void FunctionIndex::setProjectRoot(const QString &path)
+{
+    m_projectRoot = path;
+    m_ready       = false;
+    m_index.clear();
+
+    if (!path.isEmpty())
+    {
+        refresh();
+    }
+}
+
+void FunctionIndex::refresh()
+{
+    if (m_projectRoot.isEmpty())
+    {
+        return;
+    }
+
+    if (m_watcher->isRunning())
+    {
+        m_watcher->cancel();
+        m_watcher->waitForFinished();
+    }
+
+    FunctionScanner *scanner = m_scanner;
+    const QString    root    = m_projectRoot;
+
+    m_watcher->setFuture(
+        QtConcurrent::run([scanner, root]()
+        {
+            return scanner->scanDirectory(root);
+        })
+    );
+}
+
+void FunctionIndex::onScanFinished()
+{
+    if (m_watcher->isCanceled())
+    {
+        return;
+    }
+
+    m_index.clear();
+    const QList<FunctionScanner::FunctionInfo> all = m_watcher->result();
+
+    for (const FunctionScanner::FunctionInfo &func : all)
+    {
+        const QString key = func.name.toLower();
+        // Ersten Eintrag bevorzugen (globale Funktionen vor Methoden)
+        if (!m_index.contains(key) || func.className.isEmpty())
+        {
+            m_index.insert(key, func);
+        }
+    }
+
+    m_ready = true;
+    emit indexReady();
+}
+
+FunctionScanner::FunctionInfo FunctionIndex::lookup(const QString &name) const
+{
+    return m_index.value(name.toLower(), FunctionScanner::FunctionInfo{});
+}
+
+bool FunctionIndex::isReady() const
+{
+    return m_ready;
+}

barecode/src/editor/FunctionIndex.h

@@ -0,0 +1,47 @@
+#pragma once
+
+#include <QObject>
+#include <QHash>
+#include <QString>
+#include <QStringList>
+#include <QFutureWatcher>
+
+#include "FunctionScanner.h"
+
+// ---------------------------------------------------------------------------
+// FunctionIndex – Singleton-artiger Index aller Projektfunktionen.
+// Wird von CodeEditor (Doppelklick-Navigation) und SignatureHelper genutzt.
+// Aktualisiert sich asynchron wenn setProjectRoot() aufgerufen wird.
+// ---------------------------------------------------------------------------
+class FunctionIndex : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit FunctionIndex(QObject *parent = nullptr);
+
+    void setProjectRoot(const QString &path);
+    void refresh();
+
+    // Sucht eine Funktion nach Name (Groß-/Kleinschreibung ignoriert)
+    // Gibt ungültige FunctionInfo zurück wenn nicht gefunden (filePath ist leer)
+    FunctionScanner::FunctionInfo lookup(const QString &name) const;
+
+    bool isReady() const;
+
+signals:
+    void indexReady();
+
+private slots:
+    void onScanFinished();
+
+private:
+    QString          m_projectRoot;
+    FunctionScanner *m_scanner = nullptr;
+
+    QFutureWatcher<QList<FunctionScanner::FunctionInfo>> *m_watcher = nullptr;
+
+    // name.toLower() → FunctionInfo
+    QHash<QString, FunctionScanner::FunctionInfo> m_index;
+    bool m_ready = false;
+};

barecode/src/editor/FunctionListDialog.cpp

@@ -0,0 +1,52 @@
+#include "FunctionListDialog.h"
+#include "FunctionListPanel.h"
+
+#include <QVBoxLayout>
+#include <QSettings>
+#include <QCloseEvent>
+
+FunctionListDialog::FunctionListDialog(QWidget *parent)
+    : QDialog(parent, Qt::Window)
+{
+    setWindowTitle(tr("Projektfunktionen – BareCode"));
+    setMinimumSize(500, 400);
+
+    // Fenstergröße und -position wiederherstellen
+    QSettings s(QSettings::IniFormat, QSettings::UserScope, "BareCode", "BareCode");
+    if (s.contains("funclist/geometry"))
+    {
+        restoreGeometry(s.value("funclist/geometry").toByteArray());
+    }
+    else
+    {
+        resize(600, 700);
+    }
+
+    QVBoxLayout *layout = new QVBoxLayout(this);
+    layout->setContentsMargins(0, 0, 0, 0);
+    layout->setSpacing(0);
+
+    m_panel = new FunctionListPanel(this);
+    m_panel->show(); // Immer sichtbar — Panel ist jetzt der gesamte Dialog-Inhalt
+    layout->addWidget(m_panel);
+
+    connect(m_panel, &FunctionListPanel::fileLineRequested,
+            this, &FunctionListDialog::fileLineRequested);
+}
+
+void FunctionListDialog::setProjectRoot(const QString &path)
+{
+    m_panel->setProjectRoot(path);
+}
+
+void FunctionListDialog::refresh()
+{
+    m_panel->refresh();
+}
+
+void FunctionListDialog::closeEvent(QCloseEvent *event)
+{
+    QSettings s(QSettings::IniFormat, QSettings::UserScope, "BareCode", "BareCode");
+    s.setValue("funclist/geometry", saveGeometry());
+    event->accept();
+}

barecode/src/editor/FunctionListDialog.h

@@ -0,0 +1,30 @@
+#pragma once
+
+#include <QDialog>
+#include <QString>
+
+class FunctionListPanel;
+
+// ---------------------------------------------------------------------------
+// FunctionListDialog – Eigenständiges Fenster für die Projektfunktionen.
+// Bleibt offen während man im Editor arbeitet (non-modal).
+// ---------------------------------------------------------------------------
+class FunctionListDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit FunctionListDialog(QWidget *parent = nullptr);
+
+    void setProjectRoot(const QString &path);
+    void refresh();
+
+protected:
+    void closeEvent(QCloseEvent *event) override;
+
+signals:
+    void fileLineRequested(const QString &filePath, int line);
+
+private:
+    FunctionListPanel *m_panel = nullptr;
+};

barecode/src/editor/FunctionListPanel.cpp

@@ -0,0 +1,332 @@
+#include "FunctionListPanel.h"
+
+#include <QtConcurrent/QtConcurrent>
+#include <QFileInfo>
+#include <QFont>
+#include <QProgressBar>
+
+FunctionListPanel::FunctionListPanel(QWidget *parent)
+    : QWidget(parent)
+{
+    m_scanner = new FunctionScanner(this);
+    m_watcher = new QFutureWatcher<QList<FunctionScanner::FunctionInfo>>(this);
+
+    connect(m_watcher, &QFutureWatcher<QList<FunctionScanner::FunctionInfo>>::finished,
+            this, &FunctionListPanel::onScanFinished);
+
+    setupUi();
+}
+
+// ---------------------------------------------------------------------------
+// UI
+// ---------------------------------------------------------------------------
+void FunctionListPanel::setupUi()
+{
+    QVBoxLayout *root = new QVBoxLayout(this);
+    root->setContentsMargins(0, 0, 0, 0);
+    root->setSpacing(0);
+
+    // ---- Kopfzeile ----
+    QWidget *header = new QWidget(this);
+    header->setStyleSheet("background: palette(mid);");
+    QHBoxLayout *headerLayout = new QHBoxLayout(header);
+    headerLayout->setContentsMargins(6, 4, 6, 4);
+    headerLayout->setSpacing(4);
+
+    QLabel *title = new QLabel(tr("Projektfunktionen"), header);
+    QFont boldFont = title->font();
+    boldFont.setBold(true);
+    title->setFont(boldFont);
+    headerLayout->addWidget(title);
+    headerLayout->addStretch();
+
+    m_btnRefresh = new QPushButton(tr("↻"), header);
+    m_btnRefresh->setFixedSize(24, 24);
+    m_btnRefresh->setFlat(true);
+    m_btnRefresh->setToolTip(tr("Neu scannen"));
+    headerLayout->addWidget(m_btnRefresh);
+
+    root->addWidget(header);
+
+    // ---- Filter + Gruppierung ----
+    QHBoxLayout *toolRow = new QHBoxLayout();
+    toolRow->setContentsMargins(6, 4, 6, 4);
+    toolRow->setSpacing(4);
+
+    m_filterEdit = new QLineEdit(this);
+    m_filterEdit->setPlaceholderText(tr("Funktion suchen…"));
+    m_filterEdit->setClearButtonEnabled(true);
+    toolRow->addWidget(m_filterEdit, 1);
+
+    m_groupCombo = new QComboBox(this);
+    m_groupCombo->addItem(tr("Nach Datei"), "file");
+    m_groupCombo->addItem(tr("Nach Klasse"), "class");
+    m_groupCombo->addItem(tr("Alphabetisch"), "alpha");
+    m_groupCombo->setFixedWidth(120);
+    toolRow->addWidget(m_groupCombo);
+
+    root->addLayout(toolRow);
+
+    // ---- Status ----
+    m_statusLabel = new QLabel(this);
+    m_statusLabel->setContentsMargins(6, 0, 6, 2);
+    m_statusLabel->setStyleSheet("color: palette(mid); font-size: 11px;");
+    root->addWidget(m_statusLabel);
+
+    // ---- Ergebnisbaum ----
+    m_tree = new QTreeWidget(this);
+    m_tree->setHeaderHidden(true);
+    m_tree->setRootIsDecorated(true);
+    m_tree->setIndentation(14);
+    m_tree->setAlternatingRowColors(false);
+    m_tree->setAnimated(true);
+
+    // Monospace-Font für Parameter
+    QFont monoFont("Monospace", m_tree->font().pointSize());
+    monoFont.setStyleHint(QFont::Monospace);
+    m_tree->setFont(monoFont);
+
+    root->addWidget(m_tree, 1);
+
+    // ---- Verbindungen ----
+    connect(m_btnRefresh,  &QPushButton::clicked,
+            this, &FunctionListPanel::refresh);
+
+    connect(m_filterEdit,  &QLineEdit::textChanged,
+            this, &FunctionListPanel::onFilterChanged);
+
+    connect(m_groupCombo,  QOverload<int>::of(&QComboBox::currentIndexChanged),
+            this, &FunctionListPanel::onGroupingChanged);
+
+    connect(m_tree, &QTreeWidget::itemActivated,
+            this, &FunctionListPanel::onItemActivated);
+}
+
+// ---------------------------------------------------------------------------
+// Öffentliche Schnittstelle
+// ---------------------------------------------------------------------------
+void FunctionListPanel::setProjectRoot(const QString &path)
+{
+    m_projectRoot = path;
+    if (!path.isEmpty())
+    {
+        refresh();
+    }
+    else
+    {
+        m_tree->clear();
+        m_statusLabel->setText(QString());
+        m_lastResult.clear();
+    }
+}
+
+void FunctionListPanel::activate()
+{
+    m_filterEdit->setFocus();
+    m_filterEdit->selectAll();
+    if (m_lastResult.isEmpty() && !m_projectRoot.isEmpty())
+    {
+        refresh();
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Scan starten
+// ---------------------------------------------------------------------------
+void FunctionListPanel::refresh()
+{
+    if (m_projectRoot.isEmpty())
+    {
+        m_statusLabel->setText(tr("Kein Projekt geöffnet."));
+        return;
+    }
+
+    if (m_watcher->isRunning())
+    {
+        m_watcher->cancel();
+        m_watcher->waitForFinished();
+    }
+
+    m_statusLabel->setText(tr("Scanne…"));
+    m_btnRefresh->setEnabled(false);
+
+    const QString root    = m_projectRoot;
+    FunctionScanner *scanner = m_scanner;
+
+    QFuture<QList<FunctionScanner::FunctionInfo>> future =
+        QtConcurrent::run([scanner, root]()
+        {
+            return scanner->scanDirectory(root);
+        });
+
+    m_watcher->setFuture(future);
+}
+
+// ---------------------------------------------------------------------------
+// Scan abgeschlossen
+// ---------------------------------------------------------------------------
+void FunctionListPanel::onScanFinished()
+{
+    m_btnRefresh->setEnabled(true);
+
+    if (m_watcher->isCanceled())
+    {
+        return;
+    }
+
+    m_lastResult = m_watcher->result();
+    populateTree(m_lastResult);
+}
+
+// ---------------------------------------------------------------------------
+// Baum befüllen
+// ---------------------------------------------------------------------------
+void FunctionListPanel::populateTree(const QList<FunctionScanner::FunctionInfo> &functions)
+{
+    m_tree->clear();
+
+    const QString groupBy = m_groupCombo->currentData().toString();
+    const QString filter  = m_filterEdit->text().trimmed().toLower();
+
+    // Funktionen filtern
+    QList<FunctionScanner::FunctionInfo> filtered;
+    for (const auto &f : functions)
+    {
+        if (filter.isEmpty() ||
+            f.name.toLower().contains(filter) ||
+            f.parameters.toLower().contains(filter) ||
+            f.className.toLower().contains(filter))
+        {
+            filtered.append(f);
+        }
+    }
+
+    if (groupBy == "alpha")
+    {
+        // Alphabetisch — keine Gruppen
+        std::sort(filtered.begin(), filtered.end(),
+            [](const FunctionScanner::FunctionInfo &a,
+               const FunctionScanner::FunctionInfo &b)
+            {
+                return a.name.toLower() < b.name.toLower();
+            });
+
+        for (const auto &f : filtered)
+        {
+            QTreeWidgetItem *item = new QTreeWidgetItem(m_tree);
+            formatFunctionItem(item, f);
+        }
+    }
+    else
+    {
+        // Gruppiert nach Datei oder Klasse
+        QMap<QString, QList<FunctionScanner::FunctionInfo>> groups;
+
+        for (const auto &f : filtered)
+        {
+            QString key;
+            if (groupBy == "class")
+            {
+                key = f.className.isEmpty() ? tr("(global)") : f.className;
+            }
+            else
+            {
+                key = QFileInfo(f.filePath).fileName();
+            }
+            groups[key].append(f);
+        }
+
+        for (auto it = groups.begin(); it != groups.end(); ++it)
+        {
+            QTreeWidgetItem *groupItem = new QTreeWidgetItem(m_tree);
+            groupItem->setText(0, QString("%1  (%2)")
+                                   .arg(it.key())
+                                   .arg(it.value().size()));
+            groupItem->setData(0, Qt::UserRole, QString());
+            groupItem->setData(0, Qt::UserRole + 1, -1);
+
+            QFont boldFont = groupItem->font(0);
+            boldFont.setBold(true);
+            groupItem->setFont(0, boldFont);
+            groupItem->setExpanded(true);
+
+            // Funktionen innerhalb der Gruppe alphabetisch
+            auto &list = it.value();
+            std::sort(list.begin(), list.end(),
+                [](const FunctionScanner::FunctionInfo &a,
+                   const FunctionScanner::FunctionInfo &b)
+                {
+                    return a.name.toLower() < b.name.toLower();
+                });
+
+            for (const auto &f : list)
+            {
+                QTreeWidgetItem *item = new QTreeWidgetItem(groupItem);
+                formatFunctionItem(item, f);
+            }
+        }
+    }
+
+    // Statuszeile
+    const int total    = functions.size();
+    const int shown    = filtered.size();
+    if (filter.isEmpty())
+    {
+        m_statusLabel->setText(tr("%1 Funktionen gefunden").arg(total));
+    }
+    else
+    {
+        m_statusLabel->setText(tr("%1 von %2 Funktionen").arg(shown).arg(total));
+    }
+}
+
+void FunctionListPanel::formatFunctionItem(QTreeWidgetItem *item,
+                                            const FunctionScanner::FunctionInfo &f)
+{
+    // Anzeige: name(parameter)  — Zeilennummer klein dahinter
+    const QString display = QString("%1(%2)")
+                                .arg(f.name)
+                                .arg(f.parameters);
+
+    item->setText(0, display);
+    item->setToolTip(0, QString("%1\nZeile %2").arg(f.filePath).arg(f.line));
+    item->setData(0, Qt::UserRole,     f.filePath);
+    item->setData(0, Qt::UserRole + 1, f.line);
+
+    // Zeilennummer in gedimmter Farbe als zweite Spalte simulieren
+    // (über ToolTip gelöst da wir nur eine Spalte haben)
+}
+
+// ---------------------------------------------------------------------------
+// Slots
+// ---------------------------------------------------------------------------
+void FunctionListPanel::onItemActivated(QTreeWidgetItem *item, int /*column*/)
+{
+    const QString path = item->data(0, Qt::UserRole).toString();
+    const int     line = item->data(0, Qt::UserRole + 1).toInt();
+
+    if (path.isEmpty() || line < 0)
+    {
+        item->setExpanded(!item->isExpanded());
+        return;
+    }
+
+    emit fileLineRequested(path, line);
+}
+
+void FunctionListPanel::onFilterChanged(const QString &text)
+{
+    Q_UNUSED(text)
+    if (!m_lastResult.isEmpty())
+    {
+        populateTree(m_lastResult);
+    }
+}
+
+void FunctionListPanel::onGroupingChanged(int /*index*/)
+{
+    if (!m_lastResult.isEmpty())
+    {
+        populateTree(m_lastResult);
+    }
+}

barecode/src/editor/FunctionListPanel.h

@@ -0,0 +1,67 @@
+#pragma once
+
+#include <QWidget>
+#include <QTreeWidget>
+#include <QTreeWidgetItem>
+#include <QLineEdit>
+#include <QLabel>
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+#include <QPushButton>
+#include <QComboBox>
+#include <QFutureWatcher>
+#include <QString>
+
+#include "FunctionScanner.h"
+
+// ---------------------------------------------------------------------------
+// FunctionListPanel – Zeigt alle im Projekt definierten Funktionen
+// als durchsuchbare, sortierbare Liste.
+//
+// Gruppierung: nach Datei oder nach Klasse
+// Klick: öffnet Datei und springt zur Definition
+// Aktualisierung: automatisch nach jedem Speichern
+// ---------------------------------------------------------------------------
+class FunctionListPanel : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit FunctionListPanel(QWidget *parent = nullptr);
+
+    void setProjectRoot(const QString &path);
+
+public slots:
+    void refresh();
+    void activate();
+
+signals:
+    void fileLineRequested(const QString &filePath, int line);
+
+private slots:
+    void onScanFinished();
+    void onItemActivated(QTreeWidgetItem *item, int column);
+    void onFilterChanged(const QString &text);
+    void onGroupingChanged(int index);
+
+private:
+    void setupUi();
+    void populateTree(const QList<FunctionScanner::FunctionInfo> &functions);
+    void applyFilter(const QString &text);
+    static void formatFunctionItem(QTreeWidgetItem *item,
+                                   const FunctionScanner::FunctionInfo &f);
+
+    QString    m_projectRoot;
+
+    QLineEdit  *m_filterEdit   = nullptr;
+    QComboBox  *m_groupCombo   = nullptr;
+    QPushButton *m_btnRefresh  = nullptr;
+    QLabel     *m_statusLabel  = nullptr;
+    QTreeWidget *m_tree        = nullptr;
+
+    FunctionScanner *m_scanner = nullptr;
+    QFutureWatcher<QList<FunctionScanner::FunctionInfo>> *m_watcher = nullptr;
+
+    // Letztes Scan-Ergebnis für Filter ohne Neuscan
+    QList<FunctionScanner::FunctionInfo> m_lastResult;
+};

barecode/src/editor/FunctionScanner.cpp

@@ -0,0 +1,158 @@
+#include "FunctionScanner.h"
+
+#include <QDir>
+#include <QDirIterator>
+#include <QFile>
+#include <QTextStream>
+#include <QRegularExpression>
+
+FunctionScanner::FunctionScanner(QObject *parent)
+    : QObject(parent)
+{
+}
+
+// ---------------------------------------------------------------------------
+// Verzeichnis rekursiv scannen
+// ---------------------------------------------------------------------------
+QList<FunctionScanner::FunctionInfo> FunctionScanner::scanDirectory(
+    const QString    &rootPath,
+    const QStringList &extensions) const
+{
+    QList<FunctionInfo> results;
+
+    QDirIterator it(rootPath,
+                    extensions,
+                    QDir::Files,
+                    QDirIterator::Subdirectories);
+
+    while (it.hasNext())
+    {
+        const QString path = it.next();
+        results.append(scanFile(path));
+    }
+
+    return results;
+}
+
+// ---------------------------------------------------------------------------
+// Einzelne Datei scannen
+// ---------------------------------------------------------------------------
+QList<FunctionScanner::FunctionInfo> FunctionScanner::scanFile(const QString &filePath) const
+{
+    QList<FunctionInfo> results;
+
+    QFile file(filePath);
+    if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
+    {
+        return results;
+    }
+
+    QTextStream stream(&file);
+    stream.setEncoding(QStringConverter::Utf8);
+
+    QStringList lines;
+    while (!stream.atEnd())
+    {
+        lines.append(stream.readLine());
+    }
+
+    // Regex für Funktionsdefinitionen:
+    // optional: public/protected/private/static/abstract/final
+    // gefolgt von: function name(
+    static const QRegularExpression funcRegex(
+        R"((?:(?:public|protected|private|static|abstract|final)\s+)*)"
+        R"(function\s+(&?\s*[a-zA-Z_\x80-\xff][a-zA-Z0-9_\x80-\xff]*)\s*\()",
+        QRegularExpression::CaseInsensitiveOption
+    );
+
+    for (int i = 0; i < lines.size(); ++i)
+    {
+        const QString &line = lines[i];
+
+        // Zeilen in Kommentaren überspringen
+        const QString trimmed = line.trimmed();
+        if (trimmed.startsWith("//") || trimmed.startsWith("*") || trimmed.startsWith("#"))
+        {
+            continue;
+        }
+
+        QRegularExpressionMatch match = funcRegex.match(line);
+        if (!match.hasMatch())
+        {
+            continue;
+        }
+
+        FunctionInfo info;
+        info.name       = match.captured(1).trimmed();
+        info.filePath   = filePath;
+        info.line       = i + 1;
+        info.className  = detectClassContext(lines, i);
+        info.parameters = extractParameters(line, static_cast<int>(match.capturedEnd()) - 1);
+        info.signature  = info.name + "(" + info.parameters + ")";
+
+        // Konstruktoren und magische Methoden kennzeichnen
+        // aber trotzdem aufnehmen — sie sind nützlich in der Liste
+
+        results.append(info);
+    }
+
+    return results;
+}
+
+// ---------------------------------------------------------------------------
+// Parameter aus der Funktionssignatur extrahieren
+// Behandelt auch mehrzeilige Signaturen mit öffnender Klammer am Ende
+// ---------------------------------------------------------------------------
+QString FunctionScanner::extractParameters(const QString &line, int parenPos)
+{
+    // Inhalt zwischen ( und ) extrahieren
+    // Einfache Version: nur die erste Zeile — reicht für 99% aller Fälle
+    const int openParen = parenPos;
+    int depth = 0;
+    int closePos = -1;
+
+    for (int i = openParen; i < line.length(); ++i)
+    {
+        if      (line[i] == '(') { ++depth; }
+        else if (line[i] == ')')
+        {
+            --depth;
+            if (depth == 0)
+            {
+                closePos = i;
+                break;
+            }
+        }
+    }
+
+    if (closePos == -1)
+    {
+        // Klammer geht über Zeilenende — gekürzt anzeigen
+        return line.mid(openParen + 1).trimmed() + "…";
+    }
+
+    return line.mid(openParen + 1, closePos - openParen - 1).trimmed();
+}
+
+// ---------------------------------------------------------------------------
+// Klassenkontext erkennen — rückwärts durch den Code suchen
+// ---------------------------------------------------------------------------
+QString FunctionScanner::detectClassContext(const QStringList &lines, int functionLineIndex)
+{
+    static const QRegularExpression classRegex(
+        R"((?:class|interface|trait|enum)\s+([a-zA-Z_\x80-\xff][a-zA-Z0-9_\x80-\xff]*))",
+        QRegularExpression::CaseInsensitiveOption
+    );
+
+    // Rückwärts suchen — letztes class/interface/trait vor dieser Zeile
+    for (int i = functionLineIndex - 1; i >= 0; --i)
+    {
+        QRegularExpressionMatch match = classRegex.match(lines[i]);
+        if (match.hasMatch())
+        {
+            return match.captured(1);
+        }
+    }
+
+    return QString(); // Globale Funktion
+}

barecode/src/editor/FunctionScanner.h

@@ -0,0 +1,47 @@
+#pragma once
+
+#include <QObject>
+#include <QString>
+#include <QStringList>
+#include <QList>
+
+// ---------------------------------------------------------------------------
+// FunctionScanner – Scannt PHP-Dateien nach Funktionsdefinitionen.
+//
+// Liefert für jede gefundene Funktion:
+//   - Name
+//   - Parameter (vollständige Signatur)
+//   - Dateipfad
+//   - Zeilennummer
+//
+// Wird von FunctionListPanel (Anzeige) und DeadCodeAnalyzer (Stufe 1)
+// gemeinsam genutzt.
+// ---------------------------------------------------------------------------
+class FunctionScanner : public QObject
+{
+    Q_OBJECT
+
+public:
+    struct FunctionInfo
+    {
+        QString name;        // Funktionsname
+        QString parameters;  // Parameter wie definiert, z.B. "$id, $name = null"
+        QString signature;   // name(parameters) — fertig formatiert
+        QString filePath;    // Absoluter Pfad zur Datei
+        int     line = 0;    // Zeilennummer der Definition
+        QString className;   // Klassen- oder Namespace-Kontext, leer = global
+    };
+
+    explicit FunctionScanner(QObject *parent = nullptr);
+
+    // Synchroner Scan — für direkten Aufruf aus Threads
+    QList<FunctionInfo> scanDirectory(const QString &rootPath,
+                                      const QStringList &extensions = {"*.php"}) const;
+
+    // Scannt eine einzelne Datei
+    QList<FunctionInfo> scanFile(const QString &filePath) const;
+
+private:
+    static QString extractParameters(const QString &line, int parenPos);
+    static QString detectClassContext(const QStringList &lines, int functionLineIndex);
+};

barecode/src/editor/LineNumberArea.cpp

@@ -0,0 +1,18 @@
+#include "LineNumberArea.h"
+#include "CodeEditor.h"
+
+LineNumberArea::LineNumberArea(CodeEditor *editor)
+    : QWidget(editor)
+    , m_codeEditor(editor)
+{
+}
+
+QSize LineNumberArea::sizeHint() const
+{
+    return QSize(m_codeEditor->lineNumberAreaWidth(), 0);
+}
+
+void LineNumberArea::paintEvent(QPaintEvent *event)
+{
+    m_codeEditor->lineNumberAreaPaintEvent(event);
+}

barecode/src/editor/LineNumberArea.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include <QWidget>
+
+class CodeEditor;
+
+// ---------------------------------------------------------------------------
+// LineNumberArea – Thin widget painted on the left side of the CodeEditor.
+// Painted by CodeEditor::lineNumberAreaPaintEvent().
+// ---------------------------------------------------------------------------
+class LineNumberArea : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit LineNumberArea(CodeEditor *editor);
+
+    QSize sizeHint() const override;
+
+protected:
+    void paintEvent(QPaintEvent *event) override;
+
+private:
+    CodeEditor *m_codeEditor;
+};

barecode/src/editor/SearchPanel.cpp

@@ -0,0 +1,492 @@
+#include "SearchPanel.h"
+#include "CodeEditor.h"
+
+#include <QTextCursor>
+#include <QTextBlock>
+#include <QRegularExpression>
+#include <QMessageBox>
+#include <QKeyEvent>
+#include <QShortcut>
+
+SearchPanel::SearchPanel(QWidget *parent)
+    : QWidget(parent)
+{
+    setupUi();
+    hide();
+}
+
+// ---------------------------------------------------------------------------
+// UI
+// ---------------------------------------------------------------------------
+void SearchPanel::setupUi()
+{
+    m_grid = new QGridLayout(this);
+    m_grid->setContentsMargins(6, 4, 6, 4);
+    m_grid->setSpacing(4);
+
+    // ---- Row 0: Suchen ----
+    m_searchEdit = new QLineEdit(this);
+    m_searchEdit->setPlaceholderText(tr("Suchen…"));
+    m_searchEdit->setClearButtonEnabled(true);
+
+    m_btnPrev  = new QPushButton(tr("▲"), this);
+    m_btnNext  = new QPushButton(tr("▼"), this);
+    m_btnPrev->setFixedWidth(28);
+    m_btnNext->setFixedWidth(28);
+    m_btnPrev->setToolTip(tr("Vorheriger Treffer  (Shift+F3)"));
+    m_btnNext->setToolTip(tr("Nächster Treffer  (F3)"));
+
+    m_matchLabel = new QLabel(this);
+    m_matchLabel->setMinimumWidth(80);
+
+    m_btnClose = new QPushButton(tr("✕"), this);
+    m_btnClose->setFixedWidth(24);
+    m_btnClose->setToolTip(tr("Schließen  (Esc)"));
+    m_btnClose->setFlat(true);
+
+    QHBoxLayout *searchRow = new QHBoxLayout();
+    searchRow->addWidget(new QLabel(tr("Suchen:"), this));
+    searchRow->addWidget(m_searchEdit, 1);
+    searchRow->addWidget(m_btnPrev);
+    searchRow->addWidget(m_btnNext);
+    searchRow->addWidget(m_matchLabel);
+    searchRow->addWidget(m_btnClose);
+    m_grid->addLayout(searchRow, 0, 0);
+
+    // ---- Row 1: Ersetzen ----
+    m_replaceEdit = new QLineEdit(this);
+    m_replaceEdit->setPlaceholderText(tr("Ersetzen durch…"));
+    m_replaceEdit->setClearButtonEnabled(true);
+
+    m_btnReplace          = new QPushButton(tr("Ersetzen"), this);
+    m_btnReplaceAll       = new QPushButton(tr("Alle ersetzen"), this);
+    m_btnReplaceSelection = new QPushButton(tr("In Auswahl ersetzen"), this);
+
+    QHBoxLayout *replaceRow = new QHBoxLayout();
+    replaceRow->addWidget(new QLabel(tr("Ersetzen:"), this));
+    replaceRow->addWidget(m_replaceEdit, 1);
+    replaceRow->addWidget(m_btnReplace);
+    replaceRow->addWidget(m_btnReplaceAll);
+    replaceRow->addWidget(m_btnReplaceSelection);
+    m_grid->addLayout(replaceRow, 1, 0);
+
+    // ---- Row 2: Optionen ----
+    m_chkCase  = new QCheckBox(tr("Groß-/Kleinschreibung"), this);
+    m_chkWord  = new QCheckBox(tr("Ganzes Wort"), this);
+    m_chkRegex = new QCheckBox(tr("Regulärer Ausdruck"), this);
+
+    QHBoxLayout *optRow = new QHBoxLayout();
+    optRow->addWidget(m_chkCase);
+    optRow->addWidget(m_chkWord);
+    optRow->addWidget(m_chkRegex);
+    optRow->addStretch();
+    m_grid->addLayout(optRow, 2, 0);
+
+    // ---- Connections ----
+    connect(m_searchEdit, &QLineEdit::textChanged,
+            this, &SearchPanel::onSearchTextChanged);
+
+    connect(m_searchEdit, &QLineEdit::returnPressed,
+            this, &SearchPanel::findNext);
+
+    connect(m_btnNext,  &QPushButton::clicked, this, &SearchPanel::findNext);
+    connect(m_btnPrev,  &QPushButton::clicked, this, &SearchPanel::findPrevious);
+
+    connect(m_btnReplace,          &QPushButton::clicked, this, &SearchPanel::replaceCurrent);
+    connect(m_btnReplaceAll,       &QPushButton::clicked, this, &SearchPanel::replaceAll);
+    connect(m_btnReplaceSelection, &QPushButton::clicked, this, &SearchPanel::replaceInSelection);
+
+    connect(m_btnClose, &QPushButton::clicked, this, &SearchPanel::onCloseClicked);
+
+    connect(m_chkCase,  &QCheckBox::toggled, this, &SearchPanel::onOptionChanged);
+    connect(m_chkWord,  &QCheckBox::toggled, this, &SearchPanel::onOptionChanged);
+    connect(m_chkRegex, &QCheckBox::toggled, this, &SearchPanel::onOptionChanged);
+}
+
+// ---------------------------------------------------------------------------
+// Public interface
+// ---------------------------------------------------------------------------
+void SearchPanel::setEditor(CodeEditor *editor)
+{
+    clearHighlights();
+    m_editor = editor;
+}
+
+void SearchPanel::activate()
+{
+    show();
+    m_searchEdit->setFocus();
+    m_searchEdit->selectAll();
+
+    // Pre-fill with selected text if short enough
+    if (m_editor)
+    {
+        const QString sel = m_editor->textCursor().selectedText();
+        if (!sel.isEmpty() && !sel.contains('\n') && sel.length() < 200)
+        {
+            m_searchEdit->setText(sel);
+        }
+    }
+
+    updateMatchLabel();
+}
+
+// ---------------------------------------------------------------------------
+// Find helpers
+// ---------------------------------------------------------------------------
+QTextDocument::FindFlags SearchPanel::buildFindFlags(bool backwards) const
+{
+    QTextDocument::FindFlags flags;
+    if (backwards)              { flags |= QTextDocument::FindBackward;         }
+    if (m_chkCase->isChecked()) { flags |= QTextDocument::FindCaseSensitively;  }
+    if (m_chkWord->isChecked()) { flags |= QTextDocument::FindWholeWords;       }
+    return flags;
+}
+
+bool SearchPanel::performFind(bool backwards)
+{
+    if (!m_editor || m_searchEdit->text().isEmpty())
+    {
+        return false;
+    }
+
+    const QTextDocument::FindFlags flags = buildFindFlags(backwards);
+    bool found = false;
+
+    if (m_chkRegex->isChecked())
+    {
+        QRegularExpression re(m_searchEdit->text());
+        if (m_chkCase->isChecked())
+        {
+            re.setPatternOptions(QRegularExpression::NoPatternOption);
+        }
+        else
+        {
+            re.setPatternOptions(QRegularExpression::CaseInsensitiveOption);
+        }
+        found = m_editor->find(re, flags);
+
+        // Wrap around
+        if (!found)
+        {
+            QTextCursor c = m_editor->textCursor();
+            c.movePosition(backwards ? QTextCursor::End : QTextCursor::Start);
+            m_editor->setTextCursor(c);
+            found = m_editor->find(re, flags);
+        }
+    }
+    else
+    {
+        found = m_editor->find(m_searchEdit->text(), flags);
+
+        // Wrap around
+        if (!found)
+        {
+            QTextCursor c = m_editor->textCursor();
+            c.movePosition(backwards ? QTextCursor::End : QTextCursor::Start);
+            m_editor->setTextCursor(c);
+            found = m_editor->find(m_searchEdit->text(), flags);
+        }
+    }
+
+    return found;
+}
+
+void SearchPanel::highlightAllMatches()
+{
+    if (!m_editor)
+    {
+        return;
+    }
+
+    QList<QTextEdit::ExtraSelection> extras;
+
+    const QString needle = m_searchEdit->text();
+    if (needle.isEmpty())
+    {
+        m_editor->setExtraSelections(extras);
+        return;
+    }
+
+    QTextCharFormat fmt;
+    fmt.setBackground(QColor("#3a3a00"));
+    fmt.setForeground(QColor("#ffff80"));
+
+    QTextDocument *doc = m_editor->document();
+    QTextCursor   cursor(doc);
+
+    const QTextDocument::FindFlags flags = buildFindFlags(false);
+
+    while (true)
+    {
+        if (m_chkRegex->isChecked())
+        {
+            QRegularExpression re(needle);
+            if (!m_chkCase->isChecked())
+            {
+                re.setPatternOptions(QRegularExpression::CaseInsensitiveOption);
+            }
+            cursor = doc->find(re, cursor, flags);
+        }
+        else
+        {
+            cursor = doc->find(needle, cursor, flags);
+        }
+
+        if (cursor.isNull())
+        {
+            break;
+        }
+
+        QTextEdit::ExtraSelection sel;
+        sel.cursor = cursor;
+        sel.format = fmt;
+        extras.append(sel);
+    }
+
+    m_editor->setExtraSelections(extras);
+}
+
+void SearchPanel::clearHighlights()
+{
+    if (m_editor)
+    {
+        m_editor->setExtraSelections({});
+    }
+}
+
+void SearchPanel::updateMatchLabel()
+{
+    if (!m_editor || m_searchEdit->text().isEmpty())
+    {
+        m_matchLabel->setText(QString());
+        return;
+    }
+
+    // Count total matches
+    int count = 0;
+    QTextDocument *doc = m_editor->document();
+    QTextCursor   cursor(doc);
+    const QTextDocument::FindFlags flags = buildFindFlags(false);
+    const QString needle = m_searchEdit->text();
+
+    while (true)
+    {
+        if (m_chkRegex->isChecked())
+        {
+            QRegularExpression re(needle);
+            if (!m_chkCase->isChecked())
+            {
+                re.setPatternOptions(QRegularExpression::CaseInsensitiveOption);
+            }
+            cursor = doc->find(re, cursor, flags);
+        }
+        else
+        {
+            cursor = doc->find(needle, cursor, flags);
+        }
+
+        if (cursor.isNull())
+        {
+            break;
+        }
+        ++count;
+    }
+
+    if (count == 0)
+    {
+        m_matchLabel->setText(tr("Kein Treffer"));
+        m_matchLabel->setStyleSheet("color: #cc4444;");
+    }
+    else
+    {
+        m_matchLabel->setText(tr("%1 Treffer").arg(count));
+        m_matchLabel->setStyleSheet(QString());
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Public slots
+// ---------------------------------------------------------------------------
+void SearchPanel::findNext()
+{
+    performFind(false);
+}
+
+void SearchPanel::findPrevious()
+{
+    performFind(true);
+}
+
+void SearchPanel::replaceCurrent()
+{
+    if (!m_editor)
+    {
+        return;
+    }
+
+    QTextCursor cursor = m_editor->textCursor();
+
+    // If current selection matches the search term, replace it
+    // Otherwise just find the next occurrence first
+    const bool hasMatch = !cursor.selectedText().isEmpty();
+    if (!hasMatch)
+    {
+        performFind(false);
+        return;
+    }
+
+    cursor.insertText(m_replaceEdit->text());
+
+    // Move to next match
+    performFind(false);
+    updateMatchLabel();
+    highlightAllMatches();
+}
+
+void SearchPanel::replaceAll()
+{
+    if (!m_editor || m_searchEdit->text().isEmpty())
+    {
+        return;
+    }
+
+    QTextDocument *doc = m_editor->document();
+    QTextCursor   cursor(doc);
+    cursor.beginEditBlock();
+
+    int count = 0;
+    const QTextDocument::FindFlags flags = buildFindFlags(false);
+    const QString needle      = m_searchEdit->text();
+    const QString replacement = m_replaceEdit->text();
+
+    while (true)
+    {
+        if (m_chkRegex->isChecked())
+        {
+            QRegularExpression re(needle);
+            if (!m_chkCase->isChecked())
+            {
+                re.setPatternOptions(QRegularExpression::CaseInsensitiveOption);
+            }
+            cursor = doc->find(re, cursor, flags);
+        }
+        else
+        {
+            cursor = doc->find(needle, cursor, flags);
+        }
+
+        if (cursor.isNull())
+        {
+            break;
+        }
+
+        cursor.insertText(replacement);
+        ++count;
+    }
+
+    cursor.endEditBlock();
+
+    updateMatchLabel();
+    clearHighlights();
+
+    QMessageBox::information(this, tr("Alle ersetzen"),
+        tr("%1 Ersetzung(en) durchgeführt.").arg(count));
+}
+
+void SearchPanel::replaceInSelection()
+{
+    if (!m_editor || m_searchEdit->text().isEmpty())
+    {
+        return;
+    }
+
+    QTextCursor selCursor = m_editor->textCursor();
+    if (!selCursor.hasSelection())
+    {
+        QMessageBox::information(this, tr("In Auswahl ersetzen"),
+            tr("Es ist kein Text ausgewählt."));
+        return;
+    }
+
+    // Work only within the selected region
+    const int selStart = selCursor.selectionStart();
+    const int selEnd   = selCursor.selectionEnd();
+
+    QTextDocument *doc = m_editor->document();
+    QTextCursor   cursor(doc);
+    cursor.setPosition(selStart);
+    cursor.beginEditBlock();
+
+    int count = 0;
+    int offset = 0; // Replacement may be longer/shorter than search term
+    const QTextDocument::FindFlags flags = buildFindFlags(false);
+    const QString needle      = m_searchEdit->text();
+    const QString replacement = m_replaceEdit->text();
+
+    while (true)
+    {
+        if (m_chkRegex->isChecked())
+        {
+            QRegularExpression re(needle);
+            if (!m_chkCase->isChecked())
+            {
+                re.setPatternOptions(QRegularExpression::CaseInsensitiveOption);
+            }
+            cursor = doc->find(re, cursor, flags);
+        }
+        else
+        {
+            cursor = doc->find(needle, cursor, flags);
+        }
+
+        if (cursor.isNull())
+        {
+            break;
+        }
+
+        // Stop if we've left the original selection
+        if (cursor.selectionEnd() > selEnd + offset)
+        {
+            break;
+        }
+
+        offset += replacement.length() - cursor.selectedText().length();
+        cursor.insertText(replacement);
+        ++count;
+    }
+
+    cursor.endEditBlock();
+
+    updateMatchLabel();
+    clearHighlights();
+
+    QMessageBox::information(this, tr("In Auswahl ersetzen"),
+        tr("%1 Ersetzung(en) in der Auswahl durchgeführt.").arg(count));
+}
+
+// ---------------------------------------------------------------------------
+// Private slots
+// ---------------------------------------------------------------------------
+void SearchPanel::onSearchTextChanged(const QString &/*text*/)
+{
+    highlightAllMatches();
+    updateMatchLabel();
+}
+
+void SearchPanel::onOptionChanged()
+{
+    highlightAllMatches();
+    updateMatchLabel();
+}
+
+void SearchPanel::onCloseClicked()
+{
+    clearHighlights();
+    m_matchLabel->setText(QString());
+    hide();
+    if (m_editor)
+    {
+        m_editor->setFocus();
+    }
+}

barecode/src/editor/SearchPanel.h

@@ -0,0 +1,79 @@
+#pragma once
+
+#include <QWidget>
+#include <QLineEdit>
+#include <QPushButton>
+#include <QCheckBox>
+#include <QLabel>
+#include <QGridLayout>
+#include <QHBoxLayout>
+#include <QTextDocument>
+
+class CodeEditor;
+
+// ---------------------------------------------------------------------------
+// SearchPanel – Collapsible find/replace bar that operates on a CodeEditor.
+//
+// Capabilities:
+//   • Nächsten / Vorherigen Treffer suchen
+//   • Einzeln ersetzen
+//   • Alle ersetzen
+//   • Nur in Auswahl ersetzen
+//   • Optionen: Groß-/Kleinschreibung, Ganzes Wort, Reguläre Ausdrücke
+// ---------------------------------------------------------------------------
+class SearchPanel : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit SearchPanel(QWidget *parent = nullptr);
+
+    // Must be called whenever the active editor changes
+    void setEditor(CodeEditor *editor);
+
+    // Toggle visibility and focus the search field
+    void activate();
+
+public slots:
+    void findNext();
+    void findPrevious();
+    void replaceCurrent();
+    void replaceAll();
+    void replaceInSelection();
+
+private slots:
+    void onSearchTextChanged(const QString &text);
+    void onOptionChanged();   // Für Checkbox-Signale (bool-Parameter wird ignoriert)
+    void onCloseClicked();
+
+private:
+    void setupUi();
+
+    QTextDocument::FindFlags buildFindFlags(bool backwards = false) const;
+    bool                     performFind(bool backwards = false);
+    void                     highlightAllMatches();
+    void                     clearHighlights();
+    void                     updateMatchLabel();
+
+    CodeEditor  *m_editor = nullptr;
+
+    // Search row
+    QLineEdit   *m_searchEdit     = nullptr;
+    QPushButton *m_btnPrev        = nullptr;
+    QPushButton *m_btnNext        = nullptr;
+    QLabel      *m_matchLabel     = nullptr;
+    QPushButton *m_btnClose       = nullptr;
+
+    // Replace row
+    QLineEdit   *m_replaceEdit          = nullptr;
+    QPushButton *m_btnReplace           = nullptr;
+    QPushButton *m_btnReplaceAll        = nullptr;
+    QPushButton *m_btnReplaceSelection  = nullptr;
+
+    // Options row
+    QCheckBox   *m_chkCase      = nullptr;
+    QCheckBox   *m_chkWord      = nullptr;
+    QCheckBox   *m_chkRegex     = nullptr;
+
+    QGridLayout *m_grid = nullptr;
+};

barecode/src/editor/SignatureHelper.cpp

@@ -0,0 +1,222 @@
+#include "SignatureHelper.h"
+#include "SignatureTooltip.h"
+#include "CodeEditor.h"
+
+#include <QTextCursor>
+#include <QTextBlock>
+#include <QFile>
+#include <QJsonDocument>
+#include <QJsonArray>
+#include <QJsonObject>
+#include <QRect>
+#include <QRegularExpression>
+
+SignatureHelper::SignatureHelper(CodeEditor *editor)
+    : QObject(editor)
+    , m_editor(editor)
+{
+    // Tooltip als Kind des Viewports — bleibt im Fenster
+    m_tooltip = new SignatureTooltip(editor->window());
+
+    loadDatabase();
+
+    connect(m_editor, &CodeEditor::cursorPositionChanged,
+            this, &SignatureHelper::onCursorPositionChanged);
+}
+
+// ---------------------------------------------------------------------------
+// Datenbank laden
+// ---------------------------------------------------------------------------
+void SignatureHelper::loadDatabase()
+{
+    QFile f(":/php_functions.json");
+    if (!f.open(QIODevice::ReadOnly))
+    {
+        return;
+    }
+
+    const QJsonDocument doc = QJsonDocument::fromJson(f.readAll());
+    if (!doc.isArray())
+    {
+        return;
+    }
+
+    for (const QJsonValue &val : doc.array())
+    {
+        const QJsonObject obj = val.toObject();
+        const QString name    = obj["name"].toString();
+        if (name.isEmpty())
+        {
+            continue;
+        }
+
+        FunctionInfo info;
+        info.signature   = obj["signature"].toString();
+        info.description = obj["desc"].toString();
+        m_functions.insert(name.toLower(), info);
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Cursor-Bewegung auswerten
+// ---------------------------------------------------------------------------
+void SignatureHelper::onCursorPositionChanged()
+{
+    const QTextCursor cursor  = m_editor->textCursor();
+    const QString     block   = cursor.block().text();
+    const int         col     = cursor.columnNumber();
+    const QString     leftText = block.left(col);
+
+    const QString funcName = extractFunctionName(leftText);
+
+    if (funcName.isEmpty())
+    {
+        m_tooltip->hide();
+        return;
+    }
+
+    // Klammern zählen — wenn alle geschlossen, Tooltip ausblenden
+    if (countOpenParens(leftText) <= 0)
+    {
+        m_tooltip->hide();
+        return;
+    }
+
+    const QString key = funcName.toLower();
+    if (!m_functions.contains(key))
+    {
+        m_tooltip->hide();
+        return;
+    }
+
+    const FunctionInfo &info = m_functions[key];
+
+    // Position unter dem Cursor berechnen
+    const QRect cursorRect = m_editor->cursorRect(cursor);
+    const QPoint globalPos = m_editor->viewport()->mapToGlobal(
+        QPoint(cursorRect.left(), cursorRect.bottom() + 4)
+    );
+
+    m_tooltip->showSignature(info.signature, info.description, globalPos);
+}
+
+// ---------------------------------------------------------------------------
+// Funktionsnamen links vor der öffnenden Klammer extrahieren
+// ---------------------------------------------------------------------------
+QString SignatureHelper::extractFunctionName(const QString &text) const
+{
+    // Wir suchen das letzte '(' das zu einem Funktionsnamen gehört.
+    // Dabei müssen wir verschachtelte Klammern korrekt behandeln.
+    int depth = 0;
+    int openPos = -1;
+
+    for (int i = text.length() - 1; i >= 0; --i)
+    {
+        const QChar ch = text[i];
+        if (ch == ')')
+        {
+            ++depth;
+        }
+        else if (ch == '(')
+        {
+            if (depth == 0)
+            {
+                openPos = i;
+                break;
+            }
+            --depth;
+        }
+    }
+
+    if (openPos <= 0)
+    {
+        return QString();
+    }
+
+    // Funktionsnamen direkt links von '(' lesen
+    int end = openPos - 1;
+
+    // Leerzeichen überspringen
+    while (end >= 0 && text[end].isSpace())
+    {
+        --end;
+    }
+
+    if (end < 0)
+    {
+        return QString();
+    }
+
+    // Bezeichner-Zeichen sammeln (Buchstaben, Ziffern, _, :, \)
+    int start = end;
+    while (start > 0 &&
+           (text[start - 1].isLetterOrNumber() ||
+            text[start - 1] == '_'             ||
+            text[start - 1] == ':'             ||
+            text[start - 1] == '\\'))
+    {
+        --start;
+    }
+
+    const QString name = text.mid(start, end - start + 1);
+
+    // Schlüsselwörter und leere Namen ausschließen
+    static const QStringList keywords = {
+        "if", "else", "elseif", "while", "for", "foreach",
+        "switch", "match", "catch", "function", "fn"
+    };
+
+    if (name.isEmpty() || keywords.contains(name.toLower()))
+    {
+        return QString();
+    }
+
+    // Nur den letzten Teil nach :: oder -> nehmen
+    const int colonPos    = name.lastIndexOf("::");
+    const int arrowPos    = name.lastIndexOf("->");
+    const int backslashPos = name.lastIndexOf("\\");
+    const int splitPos = qMax(backslashPos, qMax(colonPos, arrowPos));
+
+    if (splitPos >= 0)
+    {
+        return name.mid(splitPos + (name[splitPos] == ':' ? 2 : (name[splitPos] == '\\' ? 1 : 2)));
+    }
+
+    return name;
+}
+
+// ---------------------------------------------------------------------------
+// Offene Klammern zählen
+// ---------------------------------------------------------------------------
+int SignatureHelper::countOpenParens(const QString &text) const
+{
+    int depth = 0;
+    bool inString     = false;
+    QChar stringChar;
+
+    for (int i = 0; i < text.length(); ++i)
+    {
+        const QChar ch = text[i];
+
+        // Einfache String-Erkennung (kein vollständiger PHP-Parser)
+        if (!inString && (ch == '\'' || ch == '"'))
+        {
+            inString   = true;
+            stringChar = ch;
+            continue;
+        }
+        if (inString)
+        {
+            if (ch == stringChar && (i == 0 || text[i - 1] != '\\'))
+            {
+                inString = false;
+            }
+            continue;
+        }
+
+        if      (ch == '(') { ++depth; }
+        else if (ch == ')') { --depth; }
+    }
+
+    return depth;
+}

barecode/src/editor/SignatureHelper.h

@@ -0,0 +1,51 @@
+#pragma once
+
+#include <QObject>
+#include <QString>
+#include <QHash>
+
+class CodeEditor;
+class SignatureTooltip;
+
+// ---------------------------------------------------------------------------
+// SignatureHelper – Lädt die PHP-Funktionsdatenbank und zeigt beim Tippen
+// automatisch die passende Funktionssignatur als Tooltip.
+//
+// Logik:
+//   • Bei jedem Tastendruck: Text links vom Cursor analysieren
+//   • Wenn "funktionsname(" erkannt wird → Tooltip anzeigen
+//   • Wenn ")" die öffnende Klammer schließt → Tooltip verstecken
+//   • Wenn Cursor sich weg bewegt → Tooltip verstecken
+// ---------------------------------------------------------------------------
+class SignatureHelper : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit SignatureHelper(CodeEditor *editor);
+
+private slots:
+    void onCursorPositionChanged();
+
+private:
+    struct FunctionInfo
+    {
+        QString signature;
+        QString description;
+    };
+
+    void loadDatabase();
+    void loadProjectFunctions();
+
+    // Extrahiert den Funktionsnamen direkt links vor dem letzten '('
+    // Gibt leeren String zurück wenn kein Kontext gefunden
+    QString extractFunctionName(const QString &textUpToCursor) const;
+
+    // Zählt offene Klammern — bei 0 ist der Aufruf abgeschlossen
+    int countOpenParens(const QString &textUpToCursor) const;
+
+    CodeEditor        *m_editor  = nullptr;
+    SignatureTooltip  *m_tooltip = nullptr;
+
+    QHash<QString, FunctionInfo> m_functions;  // name → info
+};

barecode/src/editor/SignatureTooltip.cpp

@@ -0,0 +1,91 @@
+#include "SignatureTooltip.h"
+
+#include <QApplication>
+#include <QScreen>
+
+SignatureTooltip::SignatureTooltip(QWidget *parent)
+    : QFrame(parent, Qt::ToolTip | Qt::FramelessWindowHint)
+{
+    setFrameShape(QFrame::StyledPanel);
+    setFrameShadow(QFrame::Raised);
+    setAttribute(Qt::WA_ShowWithoutActivating);
+
+    // Dezentes Styling passend zu Hell- und Dunkeltheme
+    setStyleSheet(
+        "SignatureTooltip {"
+        "  background: palette(toolTipBase);"
+        "  border: 1px solid palette(mid);"
+        "  border-radius: 4px;"
+        "  padding: 4px;"
+        "}"
+    );
+
+    m_layout = new QVBoxLayout(this);
+    m_layout->setContentsMargins(8, 6, 8, 6);
+    m_layout->setSpacing(3);
+
+    // Signatur — Monospace, deutlich hervorgehoben
+    m_sigLabel = new QLabel(this);
+    m_sigLabel->setTextFormat(Qt::PlainText);
+    m_sigLabel->setWordWrap(false);
+    QFont sigFont = m_sigLabel->font();
+    sigFont.setFamily("Monospace");
+    sigFont.setStyleHint(QFont::Monospace);
+    sigFont.setPointSize(sigFont.pointSize());
+    m_sigLabel->setFont(sigFont);
+    m_sigLabel->setStyleSheet("color: palette(toolTipText); font-weight: bold;");
+    m_layout->addWidget(m_sigLabel);
+
+    // Beschreibung — kleiner, gedimmt
+    m_descLabel = new QLabel(this);
+    m_descLabel->setTextFormat(Qt::PlainText);
+    m_descLabel->setWordWrap(false);
+    m_descLabel->setStyleSheet("color: palette(mid);");
+    QFont descFont = m_descLabel->font();
+    descFont.setPointSize(qMax(descFont.pointSize() - 1, 8));
+    m_descLabel->setFont(descFont);
+    m_layout->addWidget(m_descLabel);
+
+    hide();
+}
+
+void SignatureTooltip::showSignature(const QString &signature,
+                                     const QString &description,
+                                     const QPoint  &globalPos)
+{
+    m_sigLabel->setText(signature);
+
+    if (description.isEmpty())
+    {
+        m_descLabel->hide();
+    }
+    else
+    {
+        m_descLabel->setText(description);
+        m_descLabel->show();
+    }
+
+    adjustSize();
+
+    // Position so wählen dass das Popup nicht aus dem Bildschirm ragt
+    QPoint pos = globalPos;
+    const QRect screen = QApplication::primaryScreen()->availableGeometry();
+
+    if (pos.x() + width() > screen.right())
+    {
+        pos.setX(screen.right() - width() - 4);
+    }
+    if (pos.y() + height() > screen.bottom())
+    {
+        pos.setY(globalPos.y() - height() - 24);
+    }
+
+    move(pos);
+    show();
+    raise();
+}
+
+void SignatureTooltip::hide()
+{
+    QFrame::hide();
+}

barecode/src/editor/SignatureTooltip.h

@@ -0,0 +1,29 @@
+#pragma once
+
+#include <QFrame>
+#include <QLabel>
+#include <QString>
+#include <QVBoxLayout>
+
+// ---------------------------------------------------------------------------
+// SignatureTooltip – Schwebendes Popup das die Signatur einer Funktion zeigt.
+// Erscheint unter dem Cursor, verschwindet automatisch wenn der Nutzer
+// die Klammer schließt oder den Kontext verlässt.
+// ---------------------------------------------------------------------------
+class SignatureTooltip : public QFrame
+{
+    Q_OBJECT
+
+public:
+    explicit SignatureTooltip(QWidget *parent = nullptr);
+
+    void showSignature(const QString &signature,
+                       const QString &description,
+                       const QPoint  &globalPos);
+    void hide();
+
+private:
+    QVBoxLayout *m_layout    = nullptr;
+    QLabel      *m_sigLabel  = nullptr;
+    QLabel      *m_descLabel = nullptr;
+};

barecode/src/editor/VariableCompleter.cpp

@@ -0,0 +1,256 @@
+#include "VariableCompleter.h"
+#include "CodeEditor.h"
+
+#include <QTextCursor>
+#include <QTextBlock>
+#include <QKeyEvent>
+#include <QListWidgetItem>
+#include <QAbstractItemView>
+#include <QScrollBar>
+#include <QApplication>
+#include <QScreen>
+
+VariableCompleter::VariableCompleter(CodeEditor *editor)
+    : QObject(editor)
+    , m_editor(editor)
+{
+    // Popup als reines Anzeige-Fenster — dieselbe Fensterart wie
+    // SignatureTooltip, die nachweislich nie den Fokus an sich reißt.
+    // Wichtig: Ein echtes Elternfenster (editor->window()) angeben, sonst
+    // behandelt der Fenstermanager das Popup als eigenständiges Fenster.
+    // Das führte dazu, dass bei mehreren offenen Dateien/Tabs verwaiste
+    // Popups entstehen konnten, die den Fokus übernehmen und die
+    // Texteingabe blockieren.
+    m_popup = new QListWidget(editor->window());
+    m_popup->setWindowFlags(Qt::ToolTip | Qt::FramelessWindowHint);
+    m_popup->setAttribute(Qt::WA_ShowWithoutActivating);
+    m_popup->setFocusPolicy(Qt::NoFocus);
+    m_popup->setMaximumHeight(200);
+    m_popup->setMinimumWidth(180);
+    m_popup->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    m_popup->setStyleSheet(
+        "QListWidget {"
+        "  border: 1px solid palette(mid);"
+        "  background: palette(toolTipBase);"
+        "  color: palette(toolTipText);"
+        "  font-family: Monospace;"
+        "}"
+        "QListWidget::item:selected {"
+        "  background: palette(highlight);"
+        "  color: palette(highlightedText);"
+        "}"
+    );
+
+    connect(m_popup, &QListWidget::itemActivated,
+            this, &VariableCompleter::onItemActivated);
+}
+
+// ---------------------------------------------------------------------------
+// Nach jedem Tastendruck aufrufen
+// ---------------------------------------------------------------------------
+void VariableCompleter::handleKeyPress(QKeyEvent *event)
+{
+    // Popup-Navigation
+    if (m_popup->isVisible())
+    {
+        if (event->key() == Qt::Key_Escape)
+        {
+            hidePopup();
+            return;
+        }
+        if (event->key() == Qt::Key_Return || event->key() == Qt::Key_Enter)
+        {
+            if (m_popup->currentItem())
+            {
+                onItemActivated(m_popup->currentItem());
+            }
+            hidePopup();
+            return;
+        }
+        if (event->key() == Qt::Key_Down)
+        {
+            const int next = qMin(m_popup->currentRow() + 1,
+                                  m_popup->count() - 1);
+            m_popup->setCurrentRow(next);
+            return;
+        }
+        if (event->key() == Qt::Key_Up)
+        {
+            const int prev = qMax(m_popup->currentRow() - 1, 0);
+            m_popup->setCurrentRow(prev);
+            return;
+        }
+    }
+
+    // Nach dem normalen Tastendruck Popup aktualisieren
+    // (der Event wurde bereits an QPlainTextEdit weitergegeben)
+    updatePopup();
+}
+
+// ---------------------------------------------------------------------------
+// Popup aktualisieren
+// ---------------------------------------------------------------------------
+void VariableCompleter::updatePopup()
+{
+    const QString prefix = currentPrefix();
+
+    // Nur bei $ und mindestens einem weiteren Zeichen anzeigen
+    if (prefix.length() < 2 || !prefix.startsWith('$'))
+    {
+        hidePopup();
+        return;
+    }
+
+    const QStringList allVars = collectVariables();
+    const QString     filter  = prefix.toLower();
+
+    QStringList matches;
+    for (const QString &var : allVars)
+    {
+        if (var.toLower().startsWith(filter) && var != prefix)
+        {
+            matches.append(var);
+        }
+    }
+
+    if (matches.isEmpty())
+    {
+        hidePopup();
+        return;
+    }
+
+    // Popup befüllen
+    m_popup->clear();
+    for (const QString &var : matches)
+    {
+        m_popup->addItem(var);
+    }
+    m_popup->setCurrentRow(0);
+
+    // Größe anpassen
+    const int itemHeight = m_popup->sizeHintForRow(0) + 2;
+    const int height     = qMin(matches.size() * itemHeight + 4, 200);
+    m_popup->setFixedHeight(height);
+
+    // Position unter dem Cursor
+    const QRect cursorRect = m_editor->cursorRect();
+    QPoint pos = m_editor->viewport()->mapToGlobal(
+        QPoint(cursorRect.left(), cursorRect.bottom() + 2)
+    );
+
+    // Nicht aus dem Bildschirm herausragen
+    const QRect screen = QApplication::primaryScreen()->availableGeometry();
+    if (pos.x() + m_popup->width() > screen.right())
+    {
+        pos.setX(screen.right() - m_popup->width());
+    }
+    if (pos.y() + height > screen.bottom())
+    {
+        pos.setY(cursorRect.top() - height - 2);
+    }
+
+    m_popup->move(pos);
+    m_popup->show();
+    m_popup->raise();
+}
+
+void VariableCompleter::hidePopup()
+{
+    m_popup->hide();
+    m_popup->clear();
+}
+
+// ---------------------------------------------------------------------------
+// Editor hat den Fokus verloren (z. B. Tab-Wechsel) — Popup schließen
+// ---------------------------------------------------------------------------
+void VariableCompleter::notifyFocusLost()
+{
+    hidePopup();
+}
+
+// ---------------------------------------------------------------------------
+// Variablen im aktuellen Dokument sammeln
+// ---------------------------------------------------------------------------
+QStringList VariableCompleter::collectVariables() const
+{
+    static const QRegularExpression varRegex(R"(\$[a-zA-Z_\x80-\xff][a-zA-Z0-9_\x80-\xff]*)");
+
+    QSet<QString> seen;
+    QStringList   result;
+
+    const QString text = m_editor->toPlainText();
+    QRegularExpressionMatchIterator it = varRegex.globalMatch(text);
+
+    while (it.hasNext())
+    {
+        const QString var = it.next().captured(0);
+        if (!seen.contains(var))
+        {
+            seen.insert(var);
+            result.append(var);
+        }
+    }
+
+    result.sort(Qt::CaseInsensitive);
+    return result;
+}
+
+// ---------------------------------------------------------------------------
+// Text links vom Cursor — das angefangene $variable
+// ---------------------------------------------------------------------------
+QString VariableCompleter::currentPrefix() const
+{
+    const QTextCursor cursor = m_editor->textCursor();
+    const QString     line   = cursor.block().text();
+    const int         col    = cursor.columnNumber();
+
+    if (col == 0)
+    {
+        return QString();
+    }
+
+    // Rückwärts gehen bis zum $ oder einem Nicht-Bezeichner-Zeichen
+    int start = col - 1;
+    while (start > 0)
+    {
+        const QChar c = line[start - 1];
+        if (!c.isLetterOrNumber() && c != '_' && c != '$')
+        {
+            break;
+        }
+        --start;
+    }
+
+    const QString token = line.mid(start, col - start);
+    return token.startsWith('$') ? token : QString();
+}
+
+// ---------------------------------------------------------------------------
+// Klick oder Enter — Variable einfügen
+// ---------------------------------------------------------------------------
+void VariableCompleter::onItemActivated(QListWidgetItem *item)
+{
+    if (!item)
+    {
+        return;
+    }
+
+    const QString selected = item->text();
+    const QString prefix   = currentPrefix();
+
+    if (prefix.isEmpty())
+    {
+        hidePopup();
+        return;
+    }
+
+    // Prefix durch den vollständigen Variablennamen ersetzen
+    QTextCursor cursor = m_editor->textCursor();
+    cursor.movePosition(QTextCursor::Left,
+                        QTextCursor::KeepAnchor,
+                        prefix.length());
+    cursor.insertText(selected);
+
+    m_editor->setTextCursor(cursor);
+    hidePopup();
+}

barecode/src/editor/VariableCompleter.h

@@ -0,0 +1,43 @@
+#pragma once
+
+#include <QObject>
+#include <QListWidget>
+#include <QStringList>
+#include <QRegularExpression>
+
+class CodeEditor;
+
+// ---------------------------------------------------------------------------
+// VariableCompleter – Zeigt ein Popup mit passenden Variablennamen
+// wenn der Nutzer $ tippt und weiter eingibt.
+//
+// Kein Autocomplete — nur Anzeige. Klick oder Enter übernimmt.
+// Escape oder Weiterschreiben ohne Treffer schließt das Popup.
+// ---------------------------------------------------------------------------
+class VariableCompleter : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit VariableCompleter(CodeEditor *editor);
+
+    // Muss nach jedem Tastendruck aufgerufen werden
+    void handleKeyPress(QKeyEvent *event);
+
+    // Muss aufgerufen werden, wenn der Editor den Fokus verliert
+    // (z. B. beim Wechsel des Tabs) — schließt ein evtl. offenes Popup,
+    // damit es nicht als "Geisterfenster" stehen bleibt.
+    void notifyFocusLost();
+
+private slots:
+    void onItemActivated(QListWidgetItem *item);
+
+private:
+    void        updatePopup();
+    void        hidePopup();
+    QStringList collectVariables() const;
+    QString     currentPrefix() const;  // "$me" etc. links vom Cursor
+
+    CodeEditor  *m_editor  = nullptr;
+    QListWidget *m_popup   = nullptr;
+};

barecode/src/filetree/CMakeLists.txt

@@ -0,0 +1,17 @@
+set(FILETREE_SOURCES
+    FileTreePanel.cpp
+    FileTreePanel.h
+)
+
+add_library(BareCode_FileTree STATIC ${FILETREE_SOURCES})
+
+target_link_libraries(BareCode_FileTree PUBLIC
+    Qt6::Core
+    Qt6::Gui
+    Qt6::Widgets
+)
+
+target_include_directories(BareCode_FileTree PUBLIC
+    ${CMAKE_CURRENT_SOURCE_DIR}
+    ${CMAKE_CURRENT_SOURCE_DIR}/..
+)

barecode/src/filetree/FileTreePanel.cpp

@@ -0,0 +1,259 @@
+#include "FileTreePanel.h"
+
+#include <QDir>
+#include <QFile>
+#include <QFileInfo>
+#include <QInputDialog>
+#include <QMessageBox>
+#include <QPoint>
+
+FileTreePanel::FileTreePanel(QWidget *parent)
+    : QWidget(parent)
+{
+    setupUi();
+}
+
+// ---------------------------------------------------------------------------
+// Setup
+// ---------------------------------------------------------------------------
+void FileTreePanel::setupUi()
+{
+    m_layout = new QVBoxLayout(this);
+    m_layout->setContentsMargins(0, 0, 0, 0);
+    m_layout->setSpacing(0);
+
+    // Small header label showing the project name
+    m_label = new QLabel(tr("Kein Projekt geöffnet"), this);
+    m_label->setContentsMargins(6, 4, 6, 4);
+    m_label->setStyleSheet("font-weight: bold; background: palette(mid);");
+    m_label->setWordWrap(true);
+    m_layout->addWidget(m_label);
+
+    // File system model – show only the project subtree
+    m_model = new QFileSystemModel(this);
+    m_model->setReadOnly(false);
+    m_model->setFilter(QDir::AllDirs | QDir::Files | QDir::NoDotAndDotDot);
+
+    // Tree view
+    m_tree = new QTreeView(this);
+    m_tree->setModel(m_model);
+    m_tree->setAnimated(true);
+    m_tree->setIndentation(16);
+    m_tree->setSortingEnabled(true);
+    m_tree->sortByColumn(0, Qt::AscendingOrder);
+    m_tree->setEditTriggers(QAbstractItemView::NoEditTriggers);
+    m_tree->setHeaderHidden(true);
+    m_tree->setContextMenuPolicy(Qt::CustomContextMenu);
+
+    // Hide all columns except the file name
+    for (int col = 1; col < m_model->columnCount(); ++col)
+    {
+        m_tree->hideColumn(col);
+    }
+
+    m_layout->addWidget(m_tree);
+
+    connect(m_tree, &QTreeView::activated,
+            this, &FileTreePanel::onItemActivated);
+
+    connect(m_tree, &QTreeView::customContextMenuRequested,
+            this, &FileTreePanel::onContextMenuRequested);
+}
+
+// ---------------------------------------------------------------------------
+// Public interface
+// ---------------------------------------------------------------------------
+void FileTreePanel::setRootPath(const QString &path)
+{
+    const QModelIndex root = m_model->setRootPath(path);
+    m_tree->setRootIndex(root);
+
+    const QString projectName = QDir(path).dirName();
+    m_label->setText(projectName.isEmpty() ? path : projectName);
+}
+
+void FileTreePanel::clearRoot()
+{
+    m_model->setRootPath(QString());
+    m_tree->setRootIndex(QModelIndex());
+    m_label->setText(tr("Kein Projekt geöffnet"));
+}
+
+void FileTreePanel::triggerNewFile()
+{
+    onNewFile();
+}
+
+// ---------------------------------------------------------------------------
+// Helpers
+// ---------------------------------------------------------------------------
+QString FileTreePanel::selectedDirectory() const
+{
+    const QModelIndex index = m_tree->currentIndex();
+    if (!index.isValid())
+    {
+        return m_model->rootPath();
+    }
+
+    const QString path = m_model->filePath(index);
+    const QFileInfo info(path);
+    return info.isDir() ? path : info.absolutePath();
+}
+
+// ---------------------------------------------------------------------------
+// Slots
+// ---------------------------------------------------------------------------
+void FileTreePanel::onItemActivated(const QModelIndex &index)
+{
+    const QString path = m_model->filePath(index);
+    const QFileInfo info(path);
+
+    if (info.isFile())
+    {
+        emit fileActivated(path);
+    }
+}
+
+void FileTreePanel::onContextMenuRequested(const QPoint &pos)
+{
+    QMenu menu(this);
+
+    QAction *actNewFile   = menu.addAction(tr("Neue Datei…"));
+    QAction *actNewFolder = menu.addAction(tr("Neuer Ordner…"));
+    menu.addSeparator();
+    QAction *actDelete    = menu.addAction(tr("Löschen"));
+
+    // Disable delete if nothing is selected
+    const QModelIndex index = m_tree->indexAt(pos);
+    actDelete->setEnabled(index.isValid());
+
+    QAction *chosen = menu.exec(m_tree->viewport()->mapToGlobal(pos));
+
+    if (chosen == actNewFile)
+    {
+        onNewFile();
+    }
+    else if (chosen == actNewFolder)
+    {
+        onNewFolder();
+    }
+    else if (chosen == actDelete)
+    {
+        onDeleteEntry();
+    }
+}
+
+void FileTreePanel::onNewFile()
+{
+    const QString dir = selectedDirectory();
+    if (dir.isEmpty())
+    {
+        return;
+    }
+
+    bool ok = false;
+    const QString name = QInputDialog::getText(
+        this,
+        tr("Neue Datei"),
+        tr("Dateiname:"),
+        QLineEdit::Normal,
+        QString(),
+        &ok
+    );
+
+    if (!ok || name.trimmed().isEmpty())
+    {
+        return;
+    }
+
+    const QString filePath = QDir(dir).filePath(name.trimmed());
+
+    if (QFile::exists(filePath))
+    {
+        QMessageBox::warning(this, tr("Neue Datei"),
+            tr("Eine Datei mit diesem Namen existiert bereits:\n%1").arg(filePath));
+        return;
+    }
+
+    QFile file(filePath);
+    if (!file.open(QIODevice::WriteOnly))
+    {
+        QMessageBox::critical(this, tr("Neue Datei"),
+            tr("Datei konnte nicht angelegt werden:\n%1").arg(filePath));
+        return;
+    }
+    file.close();
+
+    emit fileCreated(filePath);
+
+    // Select the new file in the tree
+    const QModelIndex newIndex = m_model->index(filePath);
+    m_tree->setCurrentIndex(newIndex);
+    m_tree->scrollTo(newIndex);
+}
+
+void FileTreePanel::onNewFolder()
+{
+    const QString dir = selectedDirectory();
+    if (dir.isEmpty())
+    {
+        return;
+    }
+
+    bool ok = false;
+    const QString name = QInputDialog::getText(
+        this,
+        tr("Neuer Ordner"),
+        tr("Ordnername:"),
+        QLineEdit::Normal,
+        QString(),
+        &ok
+    );
+
+    if (!ok || name.trimmed().isEmpty())
+    {
+        return;
+    }
+
+    if (!QDir(dir).mkdir(name.trimmed()))
+    {
+        QMessageBox::critical(this, tr("Neuer Ordner"),
+            tr("Ordner konnte nicht angelegt werden:\n%1")
+                .arg(QDir(dir).filePath(name.trimmed())));
+    }
+}
+
+void FileTreePanel::onDeleteEntry()
+{
+    const QModelIndex index = m_tree->currentIndex();
+    if (!index.isValid())
+    {
+        return;
+    }
+
+    const QString path = m_model->filePath(index);
+    const QFileInfo info(path);
+    const QString what = info.isDir() ? tr("Ordner") : tr("Datei");
+
+    const auto answer = QMessageBox::question(
+        this,
+        tr("%1 löschen").arg(what),
+        tr("%1 wirklich löschen?\n%2").arg(what, path),
+        QMessageBox::Yes | QMessageBox::No,
+        QMessageBox::No
+    );
+
+    if (answer != QMessageBox::Yes)
+    {
+        return;
+    }
+
+    if (info.isDir())
+    {
+        QDir(path).removeRecursively();
+    }
+    else
+    {
+        QFile::remove(path);
+    }
+}

barecode/src/filetree/FileTreePanel.h

@@ -0,0 +1,49 @@
+#pragma once
+
+#include <QWidget>
+#include <QTreeView>
+#include <QFileSystemModel>
+#include <QVBoxLayout>
+#include <QLabel>
+#include <QString>
+#include <QMenu>
+#include <QAction>
+
+// ---------------------------------------------------------------------------
+// FileTreePanel – Left panel showing the project directory tree.
+// Emits fileActivated(path) when the user double-clicks a file.
+// Supports creating new files/folders via context menu.
+// ---------------------------------------------------------------------------
+class FileTreePanel : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit FileTreePanel(QWidget *parent = nullptr);
+
+    void setRootPath(const QString &path);
+    void clearRoot();
+    void triggerNewFile();   // Called from MainWindow menu action
+
+signals:
+    void fileActivated(const QString &filePath);
+    void fileCreated(const QString &filePath);
+
+private slots:
+    void onItemActivated(const QModelIndex &index);
+    void onContextMenuRequested(const QPoint &pos);
+    void onNewFile();
+    void onNewFolder();
+    void onDeleteEntry();
+
+private:
+    void setupUi();
+
+    // Returns the directory of the currently selected item
+    QString selectedDirectory() const;
+
+    QVBoxLayout      *m_layout  = nullptr;
+    QLabel           *m_label   = nullptr;
+    QTreeView        *m_tree    = nullptr;
+    QFileSystemModel *m_model   = nullptr;
+};

barecode/src/highlighter/CMakeLists.txt

@@ -0,0 +1,19 @@
+set(HIGHLIGHTER_SOURCES
+    SyntaxHighlighter.cpp
+    SyntaxHighlighter.h
+    HighlighterFactory.cpp
+    HighlighterFactory.h
+)
+
+add_library(BareCode_Highlighter STATIC ${HIGHLIGHTER_SOURCES})
+
+target_link_libraries(BareCode_Highlighter PUBLIC
+    Qt6::Core
+    Qt6::Gui
+    Qt6::Widgets
+)
+
+target_include_directories(BareCode_Highlighter PUBLIC
+    ${CMAKE_CURRENT_SOURCE_DIR}
+    ${CMAKE_CURRENT_SOURCE_DIR}/..
+)

barecode/src/highlighter/HighlighterFactory.cpp

@@ -0,0 +1,45 @@
+#include "HighlighterFactory.h"
+
+#include <QFileInfo>
+#include <QHash>
+#include <functional>
+
+SyntaxHighlighter *HighlighterFactory::createForFile(const QString &filePath,
+                                                     QTextDocument *document)
+{
+    // Erweiterung → Highlighter-Fabrik
+    // Neue Sprache hinzufügen: einfach einen Eintrag ergänzen.
+    static const QHash<QString, std::function<SyntaxHighlighter *(QTextDocument *)>> registry =
+    {
+        // C / C++
+        { "c",    [](QTextDocument *d) { return new CppHighlighter(d); } },
+        { "cc",   [](QTextDocument *d) { return new CppHighlighter(d); } },
+        { "cpp",  [](QTextDocument *d) { return new CppHighlighter(d); } },
+        { "cxx",  [](QTextDocument *d) { return new CppHighlighter(d); } },
+        { "h",    [](QTextDocument *d) { return new CppHighlighter(d); } },
+        { "hpp",  [](QTextDocument *d) { return new CppHighlighter(d); } },
+        { "hxx",  [](QTextDocument *d) { return new CppHighlighter(d); } },
+
+        // CSS
+        { "css",  [](QTextDocument *d) { return new CssHighlighter(d); } },
+
+        // HTML / Templates
+        { "html", [](QTextDocument *d) { return new HtmlHighlighter(d); } },
+        { "htm",  [](QTextDocument *d) { return new HtmlHighlighter(d); } },
+        { "xhtml",[](QTextDocument *d) { return new HtmlHighlighter(d); } },
+
+        // PHP (HTML + eingebettetes PHP)
+        { "php",  [](QTextDocument *d) { return new PhpHighlighter(d); } },
+        { "phtml",[](QTextDocument *d) { return new PhpHighlighter(d); } },
+        { "php3", [](QTextDocument *d) { return new PhpHighlighter(d); } },
+        { "php4", [](QTextDocument *d) { return new PhpHighlighter(d); } },
+        { "php5", [](QTextDocument *d) { return new PhpHighlighter(d); } },
+        { "php7", [](QTextDocument *d) { return new PhpHighlighter(d); } },
+        { "php8", [](QTextDocument *d) { return new PhpHighlighter(d); } },
+    };
+
+    const QString ext = QFileInfo(filePath).suffix().toLower();
+    const auto it = registry.find(ext);
+
+    return (it != registry.end()) ? it.value()(document) : nullptr;
+}

barecode/src/highlighter/HighlighterFactory.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <QString>
+#include <QTextDocument>
+#include "SyntaxHighlighter.h"
+
+// ---------------------------------------------------------------------------
+// HighlighterFactory – Maps file extensions to the correct highlighter.
+// To add a new language, register it in HighlighterFactory.cpp.
+// ---------------------------------------------------------------------------
+class HighlighterFactory
+{
+public:
+    // Creates and returns a highlighter for the given file path.
+    // Returns nullptr if no highlighter is registered for this file type.
+    static SyntaxHighlighter *createForFile(const QString &filePath,
+                                            QTextDocument *document);
+};

barecode/src/highlighter/SyntaxHighlighter.cpp

@@ -0,0 +1,589 @@
+#include "SyntaxHighlighter.h"
+#include <QTextDocument>
+
+// ===========================================================================
+// SyntaxHighlighter – Basis
+// ===========================================================================
+SyntaxHighlighter::SyntaxHighlighter(QTextDocument *parent)
+    : QSyntaxHighlighter(parent)
+{
+}
+
+void SyntaxHighlighter::highlightBlock(const QString &text)
+{
+    // Einzel-Zeilen-Regeln anwenden
+    for (const HighlightRule &rule : m_rules)
+    {
+        QRegularExpressionMatchIterator it = rule.pattern.globalMatch(text);
+        while (it.hasNext())
+        {
+            QRegularExpressionMatch match = it.next();
+            setFormat(
+                static_cast<int>(match.capturedStart()),
+                static_cast<int>(match.capturedLength()),
+                rule.format
+            );
+        }
+    }
+
+    if (!m_hasMultiLineComment)
+    {
+        setCurrentBlockState(0);
+        return;
+    }
+
+    // Mehrzeilige Kommentare
+    // Zustand 0 = normal, 1 = mitten in /* ... */
+    setCurrentBlockState(0);
+
+    // Leere Zeile mitten im Kommentar — Zustand weitertragen
+    if (text.isEmpty())
+    {
+        if (previousBlockState() == 1)
+        {
+            setCurrentBlockState(1);
+        }
+        return;
+    }
+
+    int startIndex = 0;
+
+    if (previousBlockState() == 1)
+    {
+        // Vorherige Zeile war mitten im Kommentar — ab Zeilenanfang nach Ende suchen
+        QRegularExpressionMatch endMatch = m_commentEndExpression.match(text, 0);
+
+        if (endMatch.hasMatch())
+        {
+            // Ende des Kommentars gefunden
+            const int commentLength = static_cast<int>(endMatch.capturedStart())
+                                    + static_cast<int>(endMatch.capturedLength());
+            setFormat(0, commentLength, m_multiLineCommentFormat);
+
+            // Nach weiteren Kommentaren in der gleichen Zeile suchen
+            QRegularExpressionMatch nextStart =
+                m_commentStartExpression.match(text, commentLength);
+            startIndex = nextStart.hasMatch()
+                       ? static_cast<int>(nextStart.capturedStart())
+                       : -1;
+        }
+        else
+        {
+            // Noch kein Ende — gesamte Zeile ist Kommentar
+            setFormat(0, text.length(), m_multiLineCommentFormat);
+            setCurrentBlockState(1);
+            return;
+        }
+    }
+    else
+    {
+        // Neuen Kommentaranfang suchen
+        QRegularExpressionMatch m = m_commentStartExpression.match(text);
+        startIndex = m.hasMatch() ? static_cast<int>(m.capturedStart()) : -1;
+    }
+
+    while (startIndex >= 0)
+    {
+        QRegularExpressionMatch endMatch =
+            m_commentEndExpression.match(text, startIndex);
+
+        int commentLength = 0;
+
+        if (endMatch.hasMatch())
+        {
+            commentLength = static_cast<int>(endMatch.capturedStart())
+                          - startIndex
+                          + static_cast<int>(endMatch.capturedLength());
+        }
+        else
+        {
+            // Kommentar geht über Zeilenende
+            setCurrentBlockState(1);
+            commentLength = text.length() - startIndex;
+        }
+
+        setFormat(startIndex, commentLength, m_multiLineCommentFormat);
+
+        if (!endMatch.hasMatch())
+        {
+            break;
+        }
+
+        // Nach weiteren Kommentaren in dieser Zeile suchen
+        QRegularExpressionMatch nextStart =
+            m_commentStartExpression.match(text, startIndex + commentLength);
+        startIndex = nextStart.hasMatch()
+                   ? static_cast<int>(nextStart.capturedStart())
+                   : -1;
+    }
+}
+
+// ===========================================================================
+// CppHighlighter
+// ===========================================================================
+CppHighlighter::CppHighlighter(QTextDocument *parent)
+    : SyntaxHighlighter(parent)
+{
+    m_hasMultiLineComment = true;
+
+    QTextCharFormat keywordFormat;
+    keywordFormat.setForeground(QColor("#569CD6"));
+    keywordFormat.setFontWeight(QFont::Bold);
+
+    const QStringList keywords = {
+        "alignas","alignof","and","and_eq","asm","auto","bitand","bitor",
+        "bool","break","case","catch","char","char8_t","char16_t","char32_t",
+        "class","compl","concept","const","consteval","constexpr","constinit",
+        "const_cast","continue","co_await","co_return","co_yield","decltype",
+        "default","delete","do","double","dynamic_cast","else","enum",
+        "explicit","export","extern","false","float","for","friend","goto",
+        "if","inline","int","long","mutable","namespace","new","noexcept",
+        "not","not_eq","nullptr","operator","or","or_eq","private","protected",
+        "public","register","reinterpret_cast","requires","return","short",
+        "signed","sizeof","static","static_assert","static_cast","struct",
+        "switch","template","this","thread_local","throw","true","try",
+        "typedef","typeid","typename","union","unsigned","using","virtual",
+        "void","volatile","wchar_t","while","xor","xor_eq","override","final"
+    };
+
+    for (const QString &kw : keywords)
+    {
+        HighlightRule rule;
+        rule.pattern = QRegularExpression(QString("\\b%1\\b").arg(kw));
+        rule.format  = keywordFormat;
+        m_rules.append(rule);
+    }
+
+    QTextCharFormat preprocFormat;
+    preprocFormat.setForeground(QColor("#C586C0"));
+    { HighlightRule r; r.pattern = QRegularExpression("^\\s*#\\s*\\w+"); r.format = preprocFormat; m_rules.append(r); }
+
+    QTextCharFormat stringFormat;
+    stringFormat.setForeground(QColor("#CE9178"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"("(?:[^"\\]|\\.)*")"); r.format = stringFormat; m_rules.append(r); }
+    { HighlightRule r; r.pattern = QRegularExpression(R"('(?:[^'\\]|\\.)*')"); r.format = stringFormat; m_rules.append(r); }
+
+    QTextCharFormat numberFormat;
+    numberFormat.setForeground(QColor("#B5CEA8"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"(\b(0[xX][0-9A-Fa-f]+[uUlL]*|[0-9]+\.?[0-9]*([eE][+-]?[0-9]+)?[fFlLuU]*)\b)"); r.format = numberFormat; m_rules.append(r); }
+
+    QTextCharFormat commentFormat;
+    commentFormat.setForeground(QColor("#6A9955"));
+    commentFormat.setFontItalic(true);
+    { HighlightRule r; r.pattern = QRegularExpression("//[^\n]*"); r.format = commentFormat; m_rules.append(r); }
+
+    m_multiLineCommentFormat  = commentFormat;
+    m_commentStartExpression  = QRegularExpression(R"(/\*)");
+    m_commentEndExpression    = QRegularExpression(R"(\*/)");
+}
+
+void CppHighlighter::highlightBlock(const QString &text)
+{
+    SyntaxHighlighter::highlightBlock(text);
+}
+
+// ===========================================================================
+// CssHighlighter
+// ===========================================================================
+CssHighlighter::CssHighlighter(QTextDocument *parent)
+    : SyntaxHighlighter(parent)
+{
+    m_hasMultiLineComment = true;
+
+    // Selektoren: .klasse  #id  element  ::pseudo  :pseudo
+    QTextCharFormat selectorFormat;
+    selectorFormat.setForeground(QColor("#D7BA7D"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"([.#]?[\w-]+\s*(?=\s*[,{]))"); r.format = selectorFormat; m_rules.append(r); }
+    { HighlightRule r; r.pattern = QRegularExpression(R"(:{1,2}[\w-]+)"); r.format = selectorFormat; m_rules.append(r); }
+
+    // Eigenschaften (property:)
+    QTextCharFormat propFormat;
+    propFormat.setForeground(QColor("#9CDCFE"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"([\w-]+\s*(?=:))"); r.format = propFormat; m_rules.append(r); }
+
+    // Werte – Farben #hex
+    QTextCharFormat colorFormat;
+    colorFormat.setForeground(QColor("#CE9178"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"(#[0-9A-Fa-f]{3,8}\b)"); r.format = colorFormat; m_rules.append(r); }
+
+    // Zahlen + Einheiten
+    QTextCharFormat numberFormat;
+    numberFormat.setForeground(QColor("#B5CEA8"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"(\b\d+\.?\d*(px|em|rem|%|vh|vw|pt|cm|mm|s|ms)?\b)"); r.format = numberFormat; m_rules.append(r); }
+
+    // Strings
+    QTextCharFormat stringFormat;
+    stringFormat.setForeground(QColor("#CE9178"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"("(?:[^"\\]|\\.)*"|'(?:[^'\\]|\\.)*')"); r.format = stringFormat; m_rules.append(r); }
+
+    // !important
+    QTextCharFormat importantFormat;
+    importantFormat.setForeground(QColor("#F44747"));
+    importantFormat.setFontWeight(QFont::Bold);
+    { HighlightRule r; r.pattern = QRegularExpression(R"(!important)"); r.format = importantFormat; m_rules.append(r); }
+
+    // @-Regeln
+    QTextCharFormat atFormat;
+    atFormat.setForeground(QColor("#C586C0"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"(@[\w-]+)"); r.format = atFormat; m_rules.append(r); }
+
+    QTextCharFormat commentFormat;
+    commentFormat.setForeground(QColor("#6A9955"));
+    commentFormat.setFontItalic(true);
+    m_multiLineCommentFormat = commentFormat;
+    m_commentStartExpression = QRegularExpression(R"(/\*)");
+    m_commentEndExpression   = QRegularExpression(R"(\*/)");
+}
+
+void CssHighlighter::highlightBlock(const QString &text)
+{
+    SyntaxHighlighter::highlightBlock(text);
+}
+
+// ===========================================================================
+// HtmlHighlighter
+// ===========================================================================
+HtmlHighlighter::HtmlHighlighter(QTextDocument *parent)
+    : SyntaxHighlighter(parent)
+{
+    // Tag-Namen  <div  </div  />
+    QTextCharFormat tagFormat;
+    tagFormat.setForeground(QColor("#569CD6"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"(</?[\w:-]+)"); r.format = tagFormat; m_rules.append(r); }
+    { HighlightRule r; r.pattern = QRegularExpression(R"(/?>)"); r.format = tagFormat; m_rules.append(r); }
+
+    // Attribute  name=
+    QTextCharFormat attrFormat;
+    attrFormat.setForeground(QColor("#9CDCFE"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"(\b[\w:-]+=)"); r.format = attrFormat; m_rules.append(r); }
+
+    // Attributwerte  "wert"  'wert'
+    QTextCharFormat valueFormat;
+    valueFormat.setForeground(QColor("#CE9178"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"("(?:[^"\\]|\\.)*"|'(?:[^'\\]|\\.)*')"); r.format = valueFormat; m_rules.append(r); }
+
+    // DOCTYPE
+    QTextCharFormat doctypeFormat;
+    doctypeFormat.setForeground(QColor("#808080"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"(<!DOCTYPE[^>]*>)", QRegularExpression::CaseInsensitiveOption); r.format = doctypeFormat; m_rules.append(r); }
+
+    // Entities  &amp;  &#123;
+    QTextCharFormat entityFormat;
+    entityFormat.setForeground(QColor("#D7BA7D"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"(&(?:#\d+|#x[0-9A-Fa-f]+|[\w]+);)"); r.format = entityFormat; m_rules.append(r); }
+
+    // Kommentare  <!-- ... -->  (mehrzeilig)
+    QTextCharFormat commentFormat;
+    commentFormat.setForeground(QColor("#6A9955"));
+    commentFormat.setFontItalic(true);
+    m_multiLineCommentFormat = commentFormat;
+    m_commentStartExpression = QRegularExpression("<!--");
+    m_commentEndExpression   = QRegularExpression("-->");
+    m_hasMultiLineComment    = true;
+}
+
+void HtmlHighlighter::highlightBlock(const QString &text)
+{
+    SyntaxHighlighter::highlightBlock(text);
+}
+
+// ===========================================================================
+// PhpHighlighter
+// ===========================================================================
+PhpHighlighter::PhpHighlighter(QTextDocument *parent)
+    : SyntaxHighlighter(parent)
+{
+    // ---- HTML-Regeln (Basis, für den Teil außerhalb von <?php ?>) ----
+
+    QTextCharFormat tagFormat;
+    tagFormat.setForeground(QColor("#569CD6"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"(</?[\w:-]+)"); r.format = tagFormat; m_rules.append(r); }
+    { HighlightRule r; r.pattern = QRegularExpression(R"(/?>)"); r.format = tagFormat; m_rules.append(r); }
+
+    QTextCharFormat attrFormat;
+    attrFormat.setForeground(QColor("#9CDCFE"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"(\b[\w:-]+=)"); r.format = attrFormat; m_rules.append(r); }
+
+    QTextCharFormat valueFormat;
+    valueFormat.setForeground(QColor("#CE9178"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"("(?:[^"\\]|\\.)*"|'(?:[^'\\]|\\.)*')"); r.format = valueFormat; m_rules.append(r); }
+
+    QTextCharFormat entityFormat;
+    entityFormat.setForeground(QColor("#D7BA7D"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"(&(?:#\d+|#x[0-9A-Fa-f]+|[\w]+);)"); r.format = entityFormat; m_rules.append(r); }
+
+    // HTML-Kommentare
+    QTextCharFormat htmlCommentFormat;
+    htmlCommentFormat.setForeground(QColor("#6A9955"));
+    htmlCommentFormat.setFontItalic(true);
+    m_multiLineCommentFormat = htmlCommentFormat;
+    m_commentStartExpression = QRegularExpression("<!--");
+    m_commentEndExpression   = QRegularExpression("-->");
+    m_hasMultiLineComment    = true;
+
+    // ---- PHP-Tags hervorheben ----
+    m_phpTagFormat.setForeground(QColor("#C586C0"));
+    m_phpTagFormat.setFontWeight(QFont::Bold);
+
+    // ---- PHP-spezifische Regeln ----
+    m_phpStringFormat.setForeground(QColor("#CE9178"));
+    m_phpCommentFormat.setForeground(QColor("#6A9955"));
+    m_phpCommentFormat.setFontItalic(true);
+
+    // Keywords
+    QTextCharFormat kwFormat;
+    kwFormat.setForeground(QColor("#569CD6"));
+    kwFormat.setFontWeight(QFont::Bold);
+
+    const QStringList phpKeywords = {
+        "abstract","and","array","as","break","callable","case","catch",
+        "class","clone","const","continue","declare","default","die","do",
+        "echo","else","elseif","empty","enddeclare","endfor","endforeach",
+        "endif","endswitch","endwhile","enum","extends","final","finally",
+        "fn","for","foreach","function","global","goto","if","implements",
+        "include","include_once","instanceof","insteadof","interface",
+        "isset","list","match","namespace","new","or","print","private",
+        "protected","public","readonly","require","require_once","return",
+        "static","switch","throw","trait","try","unset","use","var",
+        "while","xor","yield","null","true","false","NULL","TRUE","FALSE"
+    };
+
+    for (const QString &kw : phpKeywords)
+    {
+        HighlightRule r;
+        r.pattern = QRegularExpression(QString("\\b%1\\b").arg(kw));
+        r.format  = kwFormat;
+        m_phpRules.append(r);
+    }
+
+    // Variablen $var
+    QTextCharFormat varFormat;
+    varFormat.setForeground(QColor("#9CDCFE"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"(\$[\w]+)"); r.format = varFormat; m_phpRules.append(r); }
+
+    // Strings
+    { HighlightRule r; r.pattern = QRegularExpression(R"("(?:[^"\\]|\\.)*"|'(?:[^'\\]|\\.)*')"); r.format = m_phpStringFormat; m_phpRules.append(r); }
+
+    // Zahlen
+    QTextCharFormat numFormat;
+    numFormat.setForeground(QColor("#B5CEA8"));
+    { HighlightRule r; r.pattern = QRegularExpression(R"(\b\d+\.?\d*\b)"); r.format = numFormat; m_phpRules.append(r); }
+
+    // Einzeilige Kommentare
+    { HighlightRule r; r.pattern = QRegularExpression(R"((//|#)[^\n]*)"); r.format = m_phpCommentFormat; m_phpRules.append(r); }
+
+    // Eingebaute Funktionen (Auswahl der häufigsten)
+    QTextCharFormat builtinFormat;
+    builtinFormat.setForeground(QColor("#DCDCAA"));
+    const QStringList builtins = {
+        "array_map","array_filter","array_keys","array_values","array_merge",
+        "array_push","array_pop","array_shift","array_slice","array_splice",
+        "count","strlen","substr","strpos","strtolower","strtoupper","trim",
+        "ltrim","rtrim","explode","implode","str_replace","preg_match",
+        "preg_replace","sprintf","printf","print_r","var_dump","isset",
+        "empty","unset","intval","floatval","strval","is_array","is_string",
+        "is_int","is_float","is_null","is_bool","is_numeric","date","time",
+        "mktime","json_encode","json_decode","header","session_start",
+        "htmlspecialchars","htmlentities","strip_tags","nl2br","round",
+        "floor","ceil","abs","min","max","rand","in_array","array_key_exists",
+        "sort","rsort","usort","ksort","krsort","ob_start","ob_get_clean"
+    };
+
+    for (const QString &fn : builtins)
+    {
+        HighlightRule r;
+        r.pattern = QRegularExpression(QString("\\b%1\\b").arg(fn));
+        r.format  = builtinFormat;
+        m_phpRules.append(r);
+    }
+}
+
+void PhpHighlighter::highlightPhpRange(const QString &text, int start, int length)
+{
+    if (length <= 0)
+    {
+        return;
+    }
+
+    const QString phpText = text.mid(start, length);
+
+    for (const HighlightRule &rule : m_phpRules)
+    {
+        QRegularExpressionMatchIterator it = rule.pattern.globalMatch(phpText);
+        while (it.hasNext())
+        {
+            QRegularExpressionMatch match = it.next();
+            setFormat(
+                start + static_cast<int>(match.capturedStart()),
+                static_cast<int>(match.capturedLength()),
+                rule.format
+            );
+        }
+    }
+
+    static const QRegularExpression blockOpen(R"(/\*)");
+    static const QRegularExpression blockClose(R"(\*/)");
+
+    int searchFrom = 0;
+
+    // Leere Zeile mitten im PHP-Blockkommentar — Zustand weitertragen
+    if (phpText.trimmed().isEmpty())
+    {
+        if (previousBlockState() == 3)
+        {
+            setFormat(start, length, m_phpCommentFormat);
+            setCurrentBlockState(3);
+        }
+        return;
+    }
+
+    if (previousBlockState() == 3)
+    {
+        QRegularExpressionMatch closeMatch = blockClose.match(phpText, 0);
+        if (closeMatch.hasMatch())
+        {
+            const int end = static_cast<int>(closeMatch.capturedStart())
+                          + static_cast<int>(closeMatch.capturedLength());
+            setFormat(start, end, m_phpCommentFormat);
+            searchFrom = end;
+        }
+        else
+        {
+            setFormat(start, length, m_phpCommentFormat);
+            setCurrentBlockState(3);
+            return;
+        }
+    }
+
+    while (searchFrom < phpText.length())
+    {
+        QRegularExpressionMatch openMatch = blockOpen.match(phpText, searchFrom);
+        if (!openMatch.hasMatch())
+        {
+            break;
+        }
+
+        const int openPos = static_cast<int>(openMatch.capturedStart());
+        QRegularExpressionMatch closeMatch = blockClose.match(phpText, openPos + 2);
+
+        if (closeMatch.hasMatch())
+        {
+            const int closeEnd = static_cast<int>(closeMatch.capturedStart())
+                               + static_cast<int>(closeMatch.capturedLength());
+            setFormat(start + openPos, closeEnd - openPos, m_phpCommentFormat);
+            searchFrom = closeEnd;
+        }
+        else
+        {
+            setFormat(start + openPos, length - openPos, m_phpCommentFormat);
+            setCurrentBlockState(3);
+            return;
+        }
+    }
+}
+
+void PhpHighlighter::highlightBlock(const QString &text)
+{
+    // Zuerst HTML-Basis-Regeln auf den gesamten Text anwenden
+    // (setzt auch den State für HTML <!-- --> Kommentare)
+    SyntaxHighlighter::highlightBlock(text);
+
+    // Block-Zustände:
+    //   0 = HTML-Modus
+    //   1 = HTML <!-- --> Kommentar (von Basisklasse verwaltet)
+    //   2 = innerhalb PHP-Block (kein /* */ Kommentar)
+    //   3 = innerhalb PHP /* */ Block-Kommentar
+
+    // State 1 (HTML-Kommentar) wurde von der Basisklasse gesetzt — nicht überschreiben
+    if (currentBlockState() == 1)
+    {
+        return;
+    }
+
+    // Wenn der vorherige Block ein HTML-Kommentar war und dieser noch nicht
+    // abgeschlossen wurde, hat die Basisklasse das bereits korrekt behandelt.
+    // Wir setzen nur dann auf 0 zurück wenn wir sicher nicht in HTML-Kommentar sind.
+    if (previousBlockState() != 1)
+    {
+        setCurrentBlockState(0);
+    }
+
+    // Leere Zeile — Zustand weitertragen
+    if (text.isEmpty())
+    {
+        const int prev = previousBlockState();
+        if (prev == 2 || prev == 3)
+        {
+            setCurrentBlockState(prev);
+        }
+        return;
+    }
+
+    static const QRegularExpression phpOpen(R"(<\?(?:php|=)?\s?)",
+        QRegularExpression::CaseInsensitiveOption);
+    static const QRegularExpression phpClose(R"(\?>)");
+
+    int pos = 0;
+
+    if (previousBlockState() == 2 || previousBlockState() == 3)
+    {
+        // Wir befinden uns bereits in einem PHP-Block (ggf. in einem Kommentar)
+        QRegularExpressionMatch closeMatch = phpClose.match(text, 0);
+        if (closeMatch.hasMatch())
+        {
+            const int end = static_cast<int>(closeMatch.capturedStart())
+                          + static_cast<int>(closeMatch.capturedLength());
+            highlightPhpRange(text, 0, end);
+            setFormat(static_cast<int>(closeMatch.capturedStart()),
+                      static_cast<int>(closeMatch.capturedLength()),
+                      m_phpTagFormat);
+            pos = end;
+            setCurrentBlockState(0);
+        }
+        else
+        {
+            highlightPhpRange(text, 0, text.length());
+            if (currentBlockState() != 3)
+            {
+                setCurrentBlockState(2);
+            }
+            return;
+        }
+    }
+
+    while (pos < text.length())
+    {
+        QRegularExpressionMatch openMatch = phpOpen.match(text, pos);
+        if (!openMatch.hasMatch())
+        {
+            break;
+        }
+
+        const int openStart = static_cast<int>(openMatch.capturedStart());
+        const int openEnd   = openStart + static_cast<int>(openMatch.capturedLength());
+
+        setFormat(openStart, static_cast<int>(openMatch.capturedLength()), m_phpTagFormat);
+
+        QRegularExpressionMatch closeMatch = phpClose.match(text, openEnd);
+        if (closeMatch.hasMatch())
+        {
+            const int closeStart = static_cast<int>(closeMatch.capturedStart());
+            const int closeEnd   = closeStart + static_cast<int>(closeMatch.capturedLength());
+
+            highlightPhpRange(text, openEnd, closeStart - openEnd);
+            setFormat(closeStart, static_cast<int>(closeMatch.capturedLength()), m_phpTagFormat);
+
+            pos = closeEnd;
+            setCurrentBlockState(0);
+        }
+        else
+        {
+            highlightPhpRange(text, openEnd, text.length() - openEnd);
+            if (currentBlockState() != 3)
+            {
+                setCurrentBlockState(2);
+            }
+            return;
+        }
+    }
+}

barecode/src/highlighter/SyntaxHighlighter.h

@@ -0,0 +1,94 @@
+#pragma once
+
+#include <QSyntaxHighlighter>
+#include <QTextCharFormat>
+#include <QRegularExpression>
+#include <QVector>
+
+// ---------------------------------------------------------------------------
+// SyntaxHighlighter – Regelbasierte Basis-Klasse.
+// Unterklassen befüllen m_rules und können highlightBlock() überschreiben
+// um mehrzeilige Konstrukte (Block-Kommentare, heredocs, …) zu behandeln.
+// ---------------------------------------------------------------------------
+class SyntaxHighlighter : public QSyntaxHighlighter
+{
+    Q_OBJECT
+
+public:
+    explicit SyntaxHighlighter(QTextDocument *parent = nullptr);
+
+protected:
+    struct HighlightRule
+    {
+        QRegularExpression pattern;
+        QTextCharFormat    format;
+    };
+
+    void highlightBlock(const QString &text) override;
+
+    // Unterklassen befüllen dies im Konstruktor
+    QVector<HighlightRule> m_rules;
+
+    // Mehrzeilige Block-Kommentare (/* ... */)
+    QRegularExpression m_commentStartExpression;
+    QRegularExpression m_commentEndExpression;
+    QTextCharFormat    m_multiLineCommentFormat;
+    bool               m_hasMultiLineComment = false;
+};
+
+// ---------------------------------------------------------------------------
+// CppHighlighter – C und C++
+// ---------------------------------------------------------------------------
+class CppHighlighter : public SyntaxHighlighter
+{
+    Q_OBJECT
+public:
+    explicit CppHighlighter(QTextDocument *parent = nullptr);
+protected:
+    void highlightBlock(const QString &text) override;
+};
+
+// ---------------------------------------------------------------------------
+// CssHighlighter – CSS
+// ---------------------------------------------------------------------------
+class CssHighlighter : public SyntaxHighlighter
+{
+    Q_OBJECT
+public:
+    explicit CssHighlighter(QTextDocument *parent = nullptr);
+protected:
+    void highlightBlock(const QString &text) override;
+};
+
+// ---------------------------------------------------------------------------
+// HtmlHighlighter – HTML (mit eingebettetem CSS in <style> und JS in <script>)
+// ---------------------------------------------------------------------------
+class HtmlHighlighter : public SyntaxHighlighter
+{
+    Q_OBJECT
+public:
+    explicit HtmlHighlighter(QTextDocument *parent = nullptr);
+protected:
+    void highlightBlock(const QString &text) override;
+};
+
+// ---------------------------------------------------------------------------
+// PhpHighlighter – PHP (HTML + eingebettetes PHP zwischen <?php ... ?>)
+// ---------------------------------------------------------------------------
+class PhpHighlighter : public SyntaxHighlighter
+{
+    Q_OBJECT
+public:
+    explicit PhpHighlighter(QTextDocument *parent = nullptr);
+protected:
+    void highlightBlock(const QString &text) override;
+
+private:
+    // Hilfsmethode: wendet PHP-Regeln auf einen Teilbereich an
+    void highlightPhpRange(const QString &text, int start, int length);
+
+    QVector<HighlightRule> m_phpRules;
+    QTextCharFormat        m_phpStringFormat;
+    QTextCharFormat        m_phpCommentFormat;
+    QTextCharFormat        m_phpTagFormat;
+};

barecode/translations/barecode_de.ts

@@ -0,0 +1,198 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.1" language="de_DE" sourcelanguage="de_DE">
+<context>
+    <name>MainWindow</name>
+    <message><source>&amp;Datei</source><translation>&amp;Datei</translation></message>
+    <message><source>&amp;Neue Datei…</source><translation>&amp;Neue Datei…</translation></message>
+    <message><source>Datei &amp;öffnen…</source><translation>Datei &amp;öffnen…</translation></message>
+    <message><source>&amp;Projekt öffnen…</source><translation>&amp;Projekt öffnen…</translation></message>
+    <message><source>Projekt &amp;schließen</source><translation>Projekt &amp;schließen</translation></message>
+    <message><source>&amp;Speichern</source><translation>&amp;Speichern</translation></message>
+    <message><source>Speichern &amp;unter…</source><translation>Speichern &amp;unter…</translation></message>
+    <message><source>&amp;Alles speichern</source><translation>&amp;Alles speichern</translation></message>
+    <message><source>&amp;Beenden</source><translation>&amp;Beenden</translation></message>
+    <message><source>&amp;Bearbeiten</source><translation>&amp;Bearbeiten</translation></message>
+    <message><source>&amp;Rückgängig</source><translation>&amp;Rückgängig</translation></message>
+    <message><source>&amp;Wiederholen</source><translation>&amp;Wiederholen</translation></message>
+    <message><source>&amp;Suchen / Ersetzen…</source><translation>&amp;Suchen / Ersetzen…</translation></message>
+    <message><source>In &amp;Dateien suchen…</source><translation>In &amp;Dateien suchen…</translation></message>
+    <message><source>&amp;Projektfunktionen…</source><translation>&amp;Projektfunktionen…</translation></message>
+    <message><source>&amp;Tote Funktionen suchen…</source><translation>&amp;Tote Funktionen suchen…</translation></message>
+    <message><source>&amp;Ansicht</source><translation>&amp;Ansicht</translation></message>
+    <message><source>&amp;Dark Mode</source><translation>&amp;Dark Mode</translation></message>
+    <message><source>Sprache</source><translation>Sprache</translation></message>
+    <message><source>&amp;Hilfe</source><translation>&amp;Hilfe</translation></message>
+    <message><source>&amp;Über BareCode…</source><translation>&amp;Über BareCode…</translation></message>
+    <message><source>Bereit</source><translation>Bereit</translation></message>
+    <message><source>Alle Dateien gespeichert</source><translation>Alle Dateien gespeichert</translation></message>
+    <message><source>Gespeichert: %1</source><translation>Gespeichert: %1</translation></message>
+    <message><source>Projekt geöffnet: %1</source><translation>Projekt geöffnet: %1</translation></message>
+    <message><source>Projekt geschlossen</source><translation>Projekt geschlossen</translation></message>
+    <message><source>Sprache geändert</source><translation>Sprache geändert</translation></message>
+    <message><source>Die Sprache wird beim nächsten Start von BareCode aktiv.</source><translation>Die Sprache wird beim nächsten Start von BareCode aktiv.</translation></message>
+</context>
+<context>
+    <name>AboutDialog</name>
+    <message><source>Über BareCode</source><translation>Über BareCode</translation></message>
+    <message><source>Modularer Code-Editor</source><translation>Modularer Code-Editor</translation></message>
+    <message><source>Version</source><translation>Version</translation></message>
+    <message><source>Entwickler</source><translation>Entwickler</translation></message>
+    <message><source>Projekt</source><translation>Projekt</translation></message>
+    <message><source>Framework</source><translation>Framework</translation></message>
+    <message><source>Sprache</source><translation>Sprache</translation></message>
+    <message><source>Schließen</source><translation>Schließen</translation></message>
+</context>
+<context>
+    <name>FileTreePanel</name>
+    <message><source>Kein Projekt geöffnet</source><translation>Kein Projekt geöffnet</translation></message>
+    <message><source>Neue Datei…</source><translation>Neue Datei…</translation></message>
+    <message><source>Neuer Ordner…</source><translation>Neuer Ordner…</translation></message>
+    <message><source>Löschen</source><translation>Löschen</translation></message>
+    <message><source>Neue Datei</source><translation>Neue Datei</translation></message>
+    <message><source>Dateiname:</source><translation>Dateiname:</translation></message>
+    <message><source>Eine Datei mit diesem Namen existiert bereits:
+%1</source><translation>Eine Datei mit diesem Namen existiert bereits:
+%1</translation></message>
+    <message><source>Datei konnte nicht angelegt werden:
+%1</source><translation>Datei konnte nicht angelegt werden:
+%1</translation></message>
+    <message><source>Neuer Ordner</source><translation>Neuer Ordner</translation></message>
+    <message><source>Ordnername:</source><translation>Ordnername:</translation></message>
+    <message><source>Ordner konnte nicht angelegt werden:
+%1</source><translation>Ordner konnte nicht angelegt werden:
+%1</translation></message>
+    <message><source>%1 löschen</source><translation>%1 löschen</translation></message>
+    <message><source>%1 wirklich löschen?
+%2</source><translation>%1 wirklich löschen?
+%2</translation></message>
+    <message><source>Datei</source><translation>Datei</translation></message>
+    <message><source>Ordner</source><translation>Ordner</translation></message>
+</context>
+<context>
+    <name>EditorTab</name>
+    <message><source>Speichern</source><translation>Speichern</translation></message>
+    <message><source>Datei konnte nicht gespeichert werden:
+%1</source><translation>Datei konnte nicht gespeichert werden:
+%1</translation></message>
+    <message><source>Speichern unter</source><translation>Speichern unter</translation></message>
+    <message><source>Datei konnte nicht geschrieben werden:
+%1</source><translation>Datei konnte nicht geschrieben werden:
+%1</translation></message>
+</context>
+<context>
+    <name>CodeEditor</name>
+    <message><source>Datei öffnen</source><translation>Datei öffnen</translation></message>
+    <message><source>Open File</source><translation>Datei öffnen</translation></message>
+    <message><source>Cannot open file:
+%1</source><translation>Datei kann nicht geöffnet werden:
+%1</translation></message>
+</context>
+<context>
+    <name>SearchPanel</name>
+    <message><source>Suchen…</source><translation>Suchen…</translation></message>
+    <message><source>Suchen:</source><translation>Suchen:</translation></message>
+    <message><source>▲</source><translation>▲</translation></message>
+    <message><source>▼</source><translation>▼</translation></message>
+    <message><source>Vorheriger Treffer  (Shift+F3)</source><translation>Vorheriger Treffer  (Shift+F3)</translation></message>
+    <message><source>Nächster Treffer  (F3)</source><translation>Nächster Treffer  (F3)</translation></message>
+    <message><source>Schließen  (Esc)</source><translation>Schließen  (Esc)</translation></message>
+    <message><source>✕</source><translation>✕</translation></message>
+    <message><source>Ersetzen durch…</source><translation>Ersetzen durch…</translation></message>
+    <message><source>Ersetzen:</source><translation>Ersetzen:</translation></message>
+    <message><source>Ersetzen</source><translation>Ersetzen</translation></message>
+    <message><source>Alle ersetzen</source><translation>Alle ersetzen</translation></message>
+    <message><source>In Auswahl ersetzen</source><translation>In Auswahl ersetzen</translation></message>
+    <message><source>Groß-/Kleinschreibung</source><translation>Groß-/Kleinschreibung</translation></message>
+    <message><source>Ganzes Wort</source><translation>Ganzes Wort</translation></message>
+    <message><source>Regulärer Ausdruck</source><translation>Regulärer Ausdruck</translation></message>
+    <message><source>Kein Treffer</source><translation>Kein Treffer</translation></message>
+    <message><source>%1 Treffer</source><translation>%1 Treffer</translation></message>
+    <message><source>%1 Ersetzung(en) durchgeführt.</source><translation>%1 Ersetzung(en) durchgeführt.</translation></message>
+    <message><source>Es ist kein Text ausgewählt.</source><translation>Es ist kein Text ausgewählt.</translation></message>
+    <message><source>%1 Ersetzung(en) in der Auswahl durchgeführt.</source><translation>%1 Ersetzung(en) in der Auswahl durchgeführt.</translation></message>
+</context>
+<context>
+    <name>FileSearchPanel</name>
+    <message><source>Suchen in Dateien:</source><translation>Suchen in Dateien:</translation></message>
+    <message><source>Suchbegriff…</source><translation>Suchbegriff…</translation></message>
+    <message><source>Suchen</source><translation>Suchen</translation></message>
+    <message><source>✕</source><translation>✕</translation></message>
+    <message><source>Schließen</source><translation>Schließen</translation></message>
+    <message><source>Groß-/Kleinschreibung</source><translation>Groß-/Kleinschreibung</translation></message>
+    <message><source>Ganzes Wort</source><translation>Ganzes Wort</translation></message>
+    <message><source>Regex</source><translation>Regex</translation></message>
+    <message><source>Dateitypen:</source><translation>Dateitypen:</translation></message>
+    <message><source>Leerzeichen-getrennte Muster, z.B.: *.php *.html</source><translation>Leerzeichen-getrennte Muster, z.B.: *.php *.html</translation></message>
+    <message><source>Suche läuft…</source><translation>Suche läuft…</translation></message>
+    <message><source>Kein Projektverzeichnis geöffnet.</source><translation>Kein Projektverzeichnis geöffnet.</translation></message>
+    <message><source>Keine Treffer gefunden.</source><translation>Keine Treffer gefunden.</translation></message>
+    <message><source>%1 Treffer in %2 Datei(en).</source><translation>%1 Treffer in %2 Datei(en).</translation></message>
+</context>
+<context>
+    <name>FunctionListPanel</name>
+    <message><source>Projektfunktionen</source><translation>Projektfunktionen</translation></message>
+    <message><source>↻</source><translation>↻</translation></message>
+    <message><source>Neu scannen</source><translation>Neu scannen</translation></message>
+    <message><source>Funktion suchen…</source><translation>Funktion suchen…</translation></message>
+    <message><source>Nach Datei</source><translation>Nach Datei</translation></message>
+    <message><source>Nach Klasse</source><translation>Nach Klasse</translation></message>
+    <message><source>Alphabetisch</source><translation>Alphabetisch</translation></message>
+    <message><source>Kein Projekt geöffnet.</source><translation>Kein Projekt geöffnet.</translation></message>
+    <message><source>Scanne…</source><translation>Scanne…</translation></message>
+    <message><source>%1 Funktionen gefunden</source><translation>%1 Funktionen gefunden</translation></message>
+    <message><source>%1 von %2 Funktionen</source><translation>%1 von %2 Funktionen</translation></message>
+    <message><source>(global)</source><translation>(global)</translation></message>
+</context>
+<context>
+    <name>FunctionListDialog</name>
+    <message><source>Projektfunktionen – BareCode</source><translation>Projektfunktionen – BareCode</translation></message>
+</context>
+<context>
+    <name>DeadCodeAnalyzer</name>
+    <message><source>Globale Funktion — kein Aufruf gefunden</source><translation>Globale Funktion — kein Aufruf gefunden</translation></message>
+    <message><source>Methode von %1 — kein Aufruf gefunden</source><translation>Methode von %1 — kein Aufruf gefunden</translation></message>
+</context>
+<context>
+    <name>DeadCodeDialog</name>
+    <message><source>Tote Funktionen – BareCode</source><translation>Tote Funktionen – BareCode</translation></message>
+    <message><source>Kandidatenliste — kein Aufruf per Regex gefunden. Dynamische Aufrufe (call_user_func, Strings, Hooks) werden nicht erkannt. Bitte vor dem Löschen manuell prüfen.</source><translation>Kandidatenliste — kein Aufruf per Regex gefunden. Dynamische Aufrufe (call_user_func, Strings, Hooks) werden nicht erkannt. Bitte vor dem Löschen manuell prüfen.</translation></message>
+    <message><source>Ausschließen:</source><translation>Ausschließen:</translation></message>
+    <message><source>vendor lib node_modules  (leerzeichen-getrennt)</source><translation>vendor lib node_modules  (leerzeichen-getrennt)</translation></message>
+    <message><source>Verzeichnis aus dem Projekt auswählen und zur Ausschlussliste hinzufügen</source><translation>Verzeichnis aus dem Projekt auswählen und zur Ausschlussliste hinzufügen</translation></message>
+    <message><source>+ Verzeichnis</source><translation>+ Verzeichnis</translation></message>
+    <message><source>Ausschlussliste leeren</source><translation>Ausschlussliste leeren</translation></message>
+    <message><source>Verzeichnis ausschließen</source><translation>Verzeichnis ausschließen</translation></message>
+    <message><source>Analyse starten</source><translation>Analyse starten</translation></message>
+    <message><source>Als TXT exportieren</source><translation>Als TXT exportieren</translation></message>
+    <message><source>Analysiere…</source><translation>Analysiere…</translation></message>
+    <message><source>Dateien werden gezählt…</source><translation>Dateien werden gezählt…</translation></message>
+    <message><source>(%1 / %2)  %3</source><translation>(%1 / %2)  %3</translation></message>
+    <message><source>Funktion</source><translation>Funktion</translation></message>
+    <message><source>Klasse</source><translation>Klasse</translation></message>
+    <message><source>Datei</source><translation>Datei</translation></message>
+    <message><source>Zeile</source><translation>Zeile</translation></message>
+    <message><source>(global)</source><translation>(global)</translation></message>
+    <message><source>✓ Keine ungenutzten Funktionen gefunden.</source><translation>✓ Keine ungenutzten Funktionen gefunden.</translation></message>
+    <message><source>%1 Kandidaten gefunden</source><translation>%1 Kandidaten gefunden</translation></message>
+    <message><source>Analyse</source><translation>Analyse</translation></message>
+    <message><source>Bitte zuerst ein Projekt öffnen.</source><translation>Bitte zuerst ein Projekt öffnen.</translation></message>
+    <message><source>Ergebnis exportieren</source><translation>Ergebnis exportieren</translation></message>
+    <message><source>Textdateien (*.txt)</source><translation>Textdateien (*.txt)</translation></message>
+    <message><source>Export</source><translation>Export</translation></message>
+    <message><source>Datei konnte nicht geschrieben werden:
+%1</source><translation>Datei konnte nicht geschrieben werden:
+%1</translation></message>
+    <message><source>Exportiert nach:
+%1</source><translation>Exportiert nach:
+%1</translation></message>
+</context>
+<context>
+    <name>ColorIndicator</name>
+    <message><source>Farbe wählen</source><translation>Farbe wählen</translation></message>
+</context>
+<context>
+    <name>SignatureTooltip</name>
+    <message><source>Farbe wählen</source><translation>Farbe wählen</translation></message>
+</context>
+</TS>

barecode/translations/barecode_en.ts

@@ -0,0 +1,194 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.1" language="en_US" sourcelanguage="de_DE">
+<context>
+    <name>MainWindow</name>
+    <message><source>&amp;Datei</source><translation>&amp;File</translation></message>
+    <message><source>&amp;Neue Datei…</source><translation>&amp;New File…</translation></message>
+    <message><source>Datei &amp;öffnen…</source><translation>&amp;Open File…</translation></message>
+    <message><source>&amp;Projekt öffnen…</source><translation>Open &amp;Project…</translation></message>
+    <message><source>Projekt &amp;schließen</source><translation>&amp;Close Project</translation></message>
+    <message><source>&amp;Speichern</source><translation>&amp;Save</translation></message>
+    <message><source>Speichern &amp;unter…</source><translation>Save &amp;As…</translation></message>
+    <message><source>&amp;Alles speichern</source><translation>Save A&amp;ll</translation></message>
+    <message><source>&amp;Beenden</source><translation>&amp;Quit</translation></message>
+    <message><source>&amp;Bearbeiten</source><translation>&amp;Edit</translation></message>
+    <message><source>&amp;Rückgängig</source><translation>&amp;Undo</translation></message>
+    <message><source>&amp;Wiederholen</source><translation>&amp;Redo</translation></message>
+    <message><source>&amp;Suchen / Ersetzen…</source><translation>&amp;Find / Replace…</translation></message>
+    <message><source>In &amp;Dateien suchen…</source><translation>Find in &amp;Files…</translation></message>
+    <message><source>&amp;Projektfunktionen…</source><translation>&amp;Project Functions…</translation></message>
+    <message><source>&amp;Tote Funktionen suchen…</source><translation>Find &amp;Dead Code…</translation></message>
+    <message><source>&amp;Ansicht</source><translation>&amp;View</translation></message>
+    <message><source>&amp;Dark Mode</source><translation>&amp;Dark Mode</translation></message>
+    <message><source>Sprache</source><translation>Language</translation></message>
+    <message><source>&amp;Hilfe</source><translation>&amp;Help</translation></message>
+    <message><source>&amp;Über BareCode…</source><translation>&amp;About BareCode…</translation></message>
+    <message><source>Bereit</source><translation>Ready</translation></message>
+    <message><source>Alle Dateien gespeichert</source><translation>All files saved</translation></message>
+    <message><source>Gespeichert: %1</source><translation>Saved: %1</translation></message>
+    <message><source>Projekt geöffnet: %1</source><translation>Project opened: %1</translation></message>
+    <message><source>Projekt geschlossen</source><translation>Project closed</translation></message>
+    <message><source>Sprache geändert</source><translation>Language changed</translation></message>
+    <message><source>Die Sprache wird beim nächsten Start von BareCode aktiv.</source><translation>The language will be applied the next time BareCode starts.</translation></message>
+</context>
+<context>
+    <name>AboutDialog</name>
+    <message><source>Über BareCode</source><translation>About BareCode</translation></message>
+    <message><source>Modularer Code-Editor</source><translation>Modular Code Editor</translation></message>
+    <message><source>Version</source><translation>Version</translation></message>
+    <message><source>Entwickler</source><translation>Developer</translation></message>
+    <message><source>Projekt</source><translation>Project</translation></message>
+    <message><source>Framework</source><translation>Framework</translation></message>
+    <message><source>Sprache</source><translation>Language</translation></message>
+    <message><source>Schließen</source><translation>Close</translation></message>
+</context>
+<context>
+    <name>FileTreePanel</name>
+    <message><source>Kein Projekt geöffnet</source><translation>No project open</translation></message>
+    <message><source>Neue Datei…</source><translation>New File…</translation></message>
+    <message><source>Neuer Ordner…</source><translation>New Folder…</translation></message>
+    <message><source>Löschen</source><translation>Delete</translation></message>
+    <message><source>Neue Datei</source><translation>New File</translation></message>
+    <message><source>Dateiname:</source><translation>File name:</translation></message>
+    <message><source>Eine Datei mit diesem Namen existiert bereits:
+%1</source><translation>A file with this name already exists:
+%1</translation></message>
+    <message><source>Datei konnte nicht angelegt werden:
+%1</source><translation>Could not create file:
+%1</translation></message>
+    <message><source>Neuer Ordner</source><translation>New Folder</translation></message>
+    <message><source>Ordnername:</source><translation>Folder name:</translation></message>
+    <message><source>Ordner konnte nicht angelegt werden:
+%1</source><translation>Could not create folder:
+%1</translation></message>
+    <message><source>%1 löschen</source><translation>Delete %1</translation></message>
+    <message><source>%1 wirklich löschen?
+%2</source><translation>Really delete %1?
+%2</translation></message>
+    <message><source>Datei</source><translation>file</translation></message>
+    <message><source>Ordner</source><translation>folder</translation></message>
+</context>
+<context>
+    <name>EditorTab</name>
+    <message><source>Speichern</source><translation>Save</translation></message>
+    <message><source>Datei konnte nicht gespeichert werden:
+%1</source><translation>Could not save file:
+%1</translation></message>
+    <message><source>Speichern unter</source><translation>Save As</translation></message>
+    <message><source>Datei konnte nicht geschrieben werden:
+%1</source><translation>Could not write file:
+%1</translation></message>
+</context>
+<context>
+    <name>CodeEditor</name>
+    <message><source>Datei öffnen</source><translation>Open File</translation></message>
+    <message><source>Open File</source><translation>Open File</translation></message>
+    <message><source>Cannot open file:
+%1</source><translation>Cannot open file:
+%1</translation></message>
+</context>
+<context>
+    <name>SearchPanel</name>
+    <message><source>Suchen…</source><translation>Search…</translation></message>
+    <message><source>Suchen:</source><translation>Find:</translation></message>
+    <message><source>▲</source><translation>▲</translation></message>
+    <message><source>▼</source><translation>▼</translation></message>
+    <message><source>Vorheriger Treffer  (Shift+F3)</source><translation>Previous match  (Shift+F3)</translation></message>
+    <message><source>Nächster Treffer  (F3)</source><translation>Next match  (F3)</translation></message>
+    <message><source>Schließen  (Esc)</source><translation>Close  (Esc)</translation></message>
+    <message><source>✕</source><translation>✕</translation></message>
+    <message><source>Ersetzen durch…</source><translation>Replace with…</translation></message>
+    <message><source>Ersetzen:</source><translation>Replace:</translation></message>
+    <message><source>Ersetzen</source><translation>Replace</translation></message>
+    <message><source>Alle ersetzen</source><translation>Replace All</translation></message>
+    <message><source>In Auswahl ersetzen</source><translation>Replace in Selection</translation></message>
+    <message><source>Groß-/Kleinschreibung</source><translation>Case Sensitive</translation></message>
+    <message><source>Ganzes Wort</source><translation>Whole Word</translation></message>
+    <message><source>Regulärer Ausdruck</source><translation>Regular Expression</translation></message>
+    <message><source>Kein Treffer</source><translation>No matches</translation></message>
+    <message><source>%1 Treffer</source><translation>%1 matches</translation></message>
+    <message><source>%1 Ersetzung(en) durchgeführt.</source><translation>%1 replacement(s) made.</translation></message>
+    <message><source>Es ist kein Text ausgewählt.</source><translation>No text selected.</translation></message>
+    <message><source>%1 Ersetzung(en) in der Auswahl durchgeführt.</source><translation>%1 replacement(s) in selection.</translation></message>
+</context>
+<context>
+    <name>FileSearchPanel</name>
+    <message><source>Suchen in Dateien:</source><translation>Search in files:</translation></message>
+    <message><source>Suchbegriff…</source><translation>Search term…</translation></message>
+    <message><source>Suchen</source><translation>Search</translation></message>
+    <message><source>✕</source><translation>✕</translation></message>
+    <message><source>Schließen</source><translation>Close</translation></message>
+    <message><source>Groß-/Kleinschreibung</source><translation>Case Sensitive</translation></message>
+    <message><source>Ganzes Wort</source><translation>Whole Word</translation></message>
+    <message><source>Regex</source><translation>Regex</translation></message>
+    <message><source>Dateitypen:</source><translation>File types:</translation></message>
+    <message><source>Leerzeichen-getrennte Muster, z.B.: *.php *.html</source><translation>Space-separated patterns, e.g.: *.php *.html</translation></message>
+    <message><source>Suche läuft…</source><translation>Searching…</translation></message>
+    <message><source>Kein Projektverzeichnis geöffnet.</source><translation>No project directory open.</translation></message>
+    <message><source>Keine Treffer gefunden.</source><translation>No matches found.</translation></message>
+    <message><source>%1 Treffer in %2 Datei(en).</source><translation>%1 match(es) in %2 file(s).</translation></message>
+</context>
+<context>
+    <name>FunctionListPanel</name>
+    <message><source>Projektfunktionen</source><translation>Project Functions</translation></message>
+    <message><source>↻</source><translation>↻</translation></message>
+    <message><source>Neu scannen</source><translation>Rescan</translation></message>
+    <message><source>Funktion suchen…</source><translation>Search function…</translation></message>
+    <message><source>Nach Datei</source><translation>By File</translation></message>
+    <message><source>Nach Klasse</source><translation>By Class</translation></message>
+    <message><source>Alphabetisch</source><translation>Alphabetically</translation></message>
+    <message><source>Kein Projekt geöffnet.</source><translation>No project open.</translation></message>
+    <message><source>Scanne…</source><translation>Scanning…</translation></message>
+    <message><source>%1 Funktionen gefunden</source><translation>%1 functions found</translation></message>
+    <message><source>%1 von %2 Funktionen</source><translation>%1 of %2 functions</translation></message>
+    <message><source>(global)</source><translation>(global)</translation></message>
+</context>
+<context>
+    <name>FunctionListDialog</name>
+    <message><source>Projektfunktionen – BareCode</source><translation>Project Functions – BareCode</translation></message>
+</context>
+<context>
+    <name>DeadCodeAnalyzer</name>
+    <message><source>Globale Funktion — kein Aufruf gefunden</source><translation>Global function — no call found</translation></message>
+    <message><source>Methode von %1 — kein Aufruf gefunden</source><translation>Method of %1 — no call found</translation></message>
+</context>
+<context>
+    <name>DeadCodeDialog</name>
+    <message><source>Tote Funktionen – BareCode</source><translation>Dead Code – BareCode</translation></message>
+    <message><source>Kandidatenliste — kein Aufruf per Regex gefunden. Dynamische Aufrufe (call_user_func, Strings, Hooks) werden nicht erkannt. Bitte vor dem Löschen manuell prüfen.</source><translation>Candidate list — no call found via regex. Dynamic calls (call_user_func, strings, hooks) are not detected. Please verify manually before deleting.</translation></message>
+    <message><source>Ausschließen:</source><translation>Exclude:</translation></message>
+    <message><source>vendor lib node_modules  (leerzeichen-getrennt)</source><translation>vendor lib node_modules  (space-separated)</translation></message>
+    <message><source>Verzeichnis aus dem Projekt auswählen und zur Ausschlussliste hinzufügen</source><translation>Select a directory from the project to add to the exclusion list</translation></message>
+    <message><source>+ Verzeichnis</source><translation>+ Directory</translation></message>
+    <message><source>Ausschlussliste leeren</source><translation>Clear exclusion list</translation></message>
+    <message><source>Verzeichnis ausschließen</source><translation>Exclude Directory</translation></message>
+    <message><source>Analyse starten</source><translation>Start Analysis</translation></message>
+    <message><source>Als TXT exportieren</source><translation>Export as TXT</translation></message>
+    <message><source>Analysiere…</source><translation>Analysing…</translation></message>
+    <message><source>Dateien werden gezählt…</source><translation>Counting files…</translation></message>
+    <message><source>(%1 / %2)  %3</source><translation>(%1 / %2)  %3</translation></message>
+    <message><source>Funktion</source><translation>Function</translation></message>
+    <message><source>Klasse</source><translation>Class</translation></message>
+    <message><source>Datei</source><translation>File</translation></message>
+    <message><source>Zeile</source><translation>Line</translation></message>
+    <message><source>(global)</source><translation>(global)</translation></message>
+    <message><source>✓ Keine ungenutzten Funktionen gefunden.</source><translation>✓ No unused functions found.</translation></message>
+    <message><source>%1 Kandidaten gefunden</source><translation>%1 candidates found</translation></message>
+    <message><source>Analyse</source><translation>Analysis</translation></message>
+    <message><source>Bitte zuerst ein Projekt öffnen.</source><translation>Please open a project first.</translation></message>
+    <message><source>Ergebnis exportieren</source><translation>Export Result</translation></message>
+    <message><source>Textdateien (*.txt)</source><translation>Text files (*.txt)</translation></message>
+    <message><source>Export</source><translation>Export</translation></message>
+    <message><source>Datei konnte nicht geschrieben werden:
+%1</source><translation>Could not write file:
+%1</translation></message>
+    <message><source>Exportiert nach:
+%1</source><translation>Exported to:
+%1</translation></message>
+</context>
+<context>
+    <name>ColorIndicator</name>
+    <message><source>Farbe wählen</source><translation>Choose Color</translation></message>
+</context>
+</TS>