README.md aktualisiert

README.md

@@ -1,130 +1,76 @@
 # BareCode
 
-**BareCode – Schlanker Code-Editor für Web-Entwickler**  
-Version 1.1.0
+**Schlanker, modularer Code-Editor für Web-Entwickler**  
+Version 1.1.0 — von **Dany Thinnes** | [Projekt Hirnfrei](https://www.projekt-hirnfrei.de) | [Discord](https://discord.projekt-hirnfrei.de)
 
-Kompiliert sauber auf **Linux**, **Windows** und **Haiku**.
+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 |
 |---|---|
-| Projektbaum | Linkes Panel — zeigt nur das gewählte Projektverzeichnis |
+| Syntax-Highlighting | HTML, PHP, CSS, C/C++ — inkl. mehrzeiliger Kommentare |
 | Tabs | Mehrere Dateien gleichzeitig, verschiebbar und schließbar |
 | Änderungsindikator | ● im Tab-Titel bei ungespeicherten Änderungen |
-| Syntax-Highlighting | HTML, PHP, CSS, C/C++ inkl. mehrzeiliger Kommentare |
 | Zeilennummern | Eigener Gutter, aktuelle Zeile hervorgehoben |
 | Einrück-Führungslinien | Vertikale Linien wie in VS Code |
 | Auto-Indent | Einrückungstiefe wird bei Enter übernommen |
 | Tab / Shift+Tab | Ein- und Ausrücken, auch für mehrere Zeilen gleichzeitig |
 | 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 |
+
+### 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 |
-| Suchen & Ersetzen | Einzeln, Alle, In Auswahl, Regex, Live-Hervorhebung |
-| In Dateien suchen | Rekursive Projektsuche mit Ergebnisliste, direkt zur Zeile |
-| Dark / Light Mode | Umschaltbar, wird gespeichert |
+| Dark / Light Mode | Umschaltbar (Strg+Shift+D), wird gespeichert |
 | Session | Geöffnete Dateien und aktiver Tab werden wiederhergestellt |
 
 ---
 
-## Projektstruktur
-
-```
-BareCode/
-├── CMakeLists.txt
-├── main.cpp
-├── resources/
-│   ├── resources.qrc
-│   └── icon_*.png
-└── src/
-    ├── core/         # MainWindow, ProjectManager, Settings, ThemeManager, IPlugin
-    ├── editor/       # EditorPanel, EditorTab, CodeEditor, SearchPanel, FileSearchPanel
-    ├── filetree/     # FileTreePanel
-    └── highlighter/  # SyntaxHighlighter, HighlighterFactory
-```
-
-Jedes Unterverzeichnis kompiliert als eigene statische Bibliothek.
-
----
-
-## Abhängigkeiten & Bauen
-
-### Linux
-
-**Abhängigkeiten (Beispiel Ubuntu/Debian):**
-```bash
-sudo apt install cmake qt6-base-dev qt6-base-dev-tools libqt6concurrent6
-```
-
-**Abhängigkeiten (Arch/Manjaro):**
-```bash
-sudo pacman -S cmake qt6-base
-```
-
-**Bauen:**
-```bash
-cmake -B build -DCMAKE_BUILD_TYPE=Release
-cmake --build build -j$(nproc)
-./build/BareCode
-```
-
-**Installieren:**
-```bash
-sudo cmake --install build
-```
-
----
-
-### Windows (Visual Studio)
-
-**Abhängigkeiten:**
-- [Qt6](https://www.qt.io/download) (Komponenten: Qt6 Base, Qt6 Concurrent)
-- CMake ≥ 3.16
-- Visual Studio 2019 oder neuer
-
-```bat
-cmake -B build -G "Visual Studio 17 2022" -A x64
-cmake --build build --config Release
-build\Release\BareCode.exe
-```
-
-**Windows Installer erstellen** (mit [Inno Setup](https://jrsoftware.org/isinfo.php)):
-```bat
-windeployqt --release build\Release\BareCode.exe
-```
-Danach das Inno Setup Skript ausführen.
-
----
-
-### Haiku
-
-**Abhängigkeiten:**
-```bash
-pkgman install qt6_base qt6_base_devel
-```
-
-> **Hinweis:** `qt6_base_devel` enthält auf Haiku sowohl die Header als auch
-> die Build-Tools (`moc`, `rcc`, `qmake`). Getestet auf Haiku R1/beta5.
-
-**Bauen:**
-```bash
-cmake -B build -DCMAKE_BUILD_TYPE=Release
-cmake --build build -j$(nproc)
-./build/BareCode
-```
-
-**Installieren:**
-```bash
-cmake --install build
-```
-
-> Nach der Installation wird `mimeset` automatisch aufgerufen um den
-> MIME-Typ zu registrieren, damit BareCode im Haiku Tracker korrekt
-> als Anwendung erkannt wird.
-
----
-
 ## Tastaturkürzel
 
 | Aktion | Kürzel |
@@ -137,13 +83,105 @@ cmake --install build
 | 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 |
 
 ---
 
-## Erweitern
+## Projektstruktur
 
-### Neuen Highlighter hinzufügen
+```
+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,
+    │                     # FunctionScanner, FunctionIndex,
+    │                     # FunctionListPanel, FunctionListDialog,
+    │                     # DeadCodeAnalyzer, DeadCodeDialog
+    ├── filetree/         # FileTreePanel
+    └── highlighter/      # SyntaxHighlighter, HighlighterFactory
+```
+
+Jedes Unterverzeichnis kompiliert als eigene statische Bibliothek — Komponenten lassen sich unabhängig austauschen und erweitern.
+
+---
+
+## 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
+```
+
+**Installer erstellen** (mit [Inno Setup](https://jrsoftware.org/isinfo.php)):
+```bat
+windeployqt --release build\Release\BareCode.exe
+```
+
+---
+
+### 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. `qt6_base_devel` enthält auf Haiku
+> sowohl die Header als auch die Build-Tools.
+
+---
+
+## Neue Sprache hinzufügen
 
 1. Subklasse von `SyntaxHighlighter` in `src/highlighter/` erstellen
 2. `m_rules` im Konstruktor befüllen (siehe `CppHighlighter` als Vorlage)
@@ -151,17 +189,11 @@ cmake --install build
 
 Keine weiteren Dateien müssen geändert werden.
 
-### Neues Panel / Plugin hinzufügen
-
-1. `IPlugin`-Interface aus `src/core/IPlugin.h` implementieren
-2. `QWidget`-Subklasse für die UI erstellen
-3. In `MainWindow` instanziieren und verdrahten
-
 ---
 
-## Code-Stil
+## Lizenz
 
-Allman-Klammerstil, C++17 durchgehend.
+MIT License — Copyright (c) 2025 Dany Thinnes / Projekt Hirnfrei
 
 ---
 
@@ -169,3 +201,5 @@ Allman-Klammerstil, C++17 durchgehend.
 
 - 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)

src/barecode-1.1.0.tar.gz

@@ -0,0 +1 @@
+/home/diabolus/Arbeit/Projekt-Hirnfrei/BareCode/barecode-1.1.0.tar.gz

src/barecode/.gitignore

@@ -0,0 +1,2 @@
+{src/
+build/

src/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

src/barecode/BareCode.rc

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

src/barecode/BareCodeAUR/PKGBUILD

@@ -0,0 +1,47 @@
+# Maintainer: Dany Thinnes <deine@email.de>
+
+pkgname=barecode-git
+pkgver=r5.cb66172
+pkgrel=1
+pkgdesc="Modularer Code-Editor, entwickelt von Projekt Hirnfrei (git)"
+arch=('x86_64' 'aarch64')
+url="https://git.projekt-hirnfrei.de/diabolus/BareCode"
+license=('MIT')
+depends=('qt6-base')
+makedepends=('cmake' 'ninja' 'git')
+provides=('barecode')
+conflicts=('barecode')
+
+source=("$pkgname::git+$url.git")
+sha256sums=('SKIP')
+
+pkgver()
+{
+    cd "$pkgname"
+    printf "r%s.%s" "$(git rev-list --count HEAD)" "$(git rev-parse --short HEAD)"
+}
+
+build()
+{
+    cmake \
+        -B build \
+        -S "$pkgname" \
+        -G Ninja \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_INSTALL_PREFIX=/usr
+    cmake --build build
+}
+
+package()
+{
+    DESTDIR="$pkgdir" cmake --install build
+
+    install -Dm644 "$pkgname/barecode.desktop" \
+        "$pkgdir/usr/share/applications/barecode.desktop"
+
+    # install -Dm644 "$pkgname/resources/barecode.png" \
+    #     "$pkgdir/usr/share/pixmaps/barecode.png"
+
+    install -Dm644 "$pkgname/LICENSE" \
+        "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+}

src/barecode/BareCodeAUR/PKGBUILD-git

@@ -0,0 +1,47 @@
+# Maintainer: Dany Thinnes <deine@email.de>
+
+pkgname=barecode-git
+pkgver=r1.0.0
+pkgrel=1
+pkgdesc="Modularer Code-Editor, entwickelt von Projekt Hirnfrei (git)"
+arch=('x86_64' 'aarch64')
+url="https://git.projekt-hirnfrei.de/diabolus/BareCode"
+license=('MIT')
+depends=('qt6-base')
+makedepends=('cmake' 'ninja' 'git')
+provides=('barecode')
+conflicts=('barecode')
+
+source=("$pkgname::git+$url.git")
+sha256sums=('SKIP')
+
+pkgver()
+{
+    cd "$pkgname"
+    printf "r%s.%s" "$(git rev-list --count HEAD)" "$(git rev-parse --short HEAD)"
+}
+
+build()
+{
+    cmake \
+        -B build \
+        -S "$pkgname" \
+        -G Ninja \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_INSTALL_PREFIX=/usr
+    cmake --build build
+}
+
+package()
+{
+    DESTDIR="$pkgdir" cmake --install build
+
+    install -Dm644 "$pkgname/barecode.desktop" \
+        "$pkgdir/usr/share/applications/barecode.desktop"
+
+    # install -Dm644 "$pkgname/resources/barecode.png" \
+    #     "$pkgdir/usr/share/pixmaps/barecode.png"
+
+    install -Dm644 "$pkgname/LICENSE" \
+        "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+}

src/barecode/BareCodeAUR/PKGBUILD-stable

@@ -0,0 +1,41 @@
+# Maintainer: Dany Thinnes <deine@email.de>
+
+pkgname=barecode
+pkgver=1.0.0
+pkgrel=1
+pkgdesc="Modularer Code-Editor, entwickelt von Projekt Hirnfrei"
+arch=('x86_64' 'aarch64')
+url="https://git.projekt-hirnfrei.de/diabolus/BareCode"
+license=('MIT')
+depends=('qt6-base')
+makedepends=('cmake' 'ninja' 'git')
+
+# Gitea erzeugt automatisch Tarballs unter:
+# https://DEIN-GITEA-SERVER/DEINNAME/BareCode/archive/v1.0.0.tar.gz
+#
+# sha256sum nach dem Taggen ermitteln:
+#   curl -L https://DEIN-GITEA-SERVER/DEINNAME/BareCode/archive/v1.0.0.tar.gz | sha256sum
+source=("$pkgname-$pkgver.tar.gz::$url/archive/v$pkgver.tar.gz")
+sha256sums=('SKIP')  # Ersetzen nach erstem Tag
+
+build()
+{
+    cmake \
+        -B build \
+        -S "BareCode-$pkgver" \
+        -G Ninja \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_INSTALL_PREFIX=/usr
+    cmake --build build
+}
+
+package()
+{
+    DESTDIR="$pkgdir" cmake --install build
+
+    install -Dm644 "BareCode-$pkgver/barecode.desktop" \
+        "$pkgdir/usr/share/applications/barecode.desktop"
+
+    install -Dm644 "BareCode-$pkgver/LICENSE" \
+        "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+}

src/barecode/BareCodeAUR/barecode-git/HEAD

@@ -0,0 +1 @@
+ref: refs/heads/main

src/barecode/BareCodeAUR/barecode-git/config

@@ -0,0 +1,9 @@
+[core]
+	repositoryformatversion = 0
+	filemode = true
+	bare = true
+[remote "origin"]
+	url = https://git.projekt-hirnfrei.de/diabolus/BareCode.git
+	tagOpt = --no-tags
+	fetch = +refs/*:refs/*
+	mirror = true

src/barecode/BareCodeAUR/barecode-git/description

@@ -0,0 +1 @@
+Unnamed repository; edit this file 'description' to name the repository.

src/barecode/BareCodeAUR/barecode-git/hooks/applypatch-msg.sample

@@ -0,0 +1,15 @@
+#!/bin/sh
+#
+# An example hook script to check the commit log message taken by
+# applypatch from an e-mail message.
+#
+# The hook should exit with non-zero status after issuing an
+# appropriate message if it wants to stop the commit.  The hook is
+# allowed to edit the commit message file.
+#
+# To enable this hook, rename this file to "applypatch-msg".
+
+. git-sh-setup
+commitmsg="$(git rev-parse --git-path hooks/commit-msg)"
+test -x "$commitmsg" && exec "$commitmsg" ${1+"$@"}
+:

src/barecode/BareCodeAUR/barecode-git/hooks/commit-msg.sample

@@ -0,0 +1,74 @@
+#!/bin/sh
+#
+# An example hook script to check the commit log message.
+# Called by "git commit" with one argument, the name of the file
+# that has the commit message.  The hook should exit with non-zero
+# status after issuing an appropriate message if it wants to stop the
+# commit.  The hook is allowed to edit the commit message file.
+#
+# To enable this hook, rename this file to "commit-msg".
+
+# Uncomment the below to add a Signed-off-by line to the message.
+# Doing this in a hook is a bad idea in general, but the prepare-commit-msg
+# hook is more suited to it.
+#
+# SOB=$(git var GIT_AUTHOR_IDENT | sed -n 's/^\(.*>\).*$/Signed-off-by: \1/p')
+# grep -qs "^$SOB" "$1" || echo "$SOB" >> "$1"
+
+# This example catches duplicate Signed-off-by lines and messages that
+# would confuse 'git am'.
+
+ret=0
+
+test "" = "$(grep '^Signed-off-by: ' "$1" |
+	 sort | uniq -c | sed -e '/^[ 	]*1[ 	]/d')" || {
+	echo >&2 Duplicate Signed-off-by lines.
+	ret=1
+}
+
+comment_re="$(
+	{
+		git config --get-regexp "^core\.comment(char|string)\$" ||
+			echo '#'
+	} | sed -n -e '
+		${
+			s/^[^ ]* //
+			s|[][*./\]|\\&|g
+			s/^auto$/[#;@!$%^&|:]/
+			p
+		}'
+)"
+scissors_line="^${comment_re} -\{8,\} >8 -\{8,\}\$"
+comment_line="^${comment_re}.*"
+blank_line='^[ 	]*$'
+# Disallow lines starting with "diff -" or "Index: " in the body of the
+# message. Stop looking if we see a scissors line.
+line="$(sed -n -e "
+	# Skip comments and blank lines at the start of the file.
+	/${scissors_line}/q
+	/${comment_line}/d
+	/${blank_line}/d
+	# The first paragraph will become the subject header so
+	# does not need to be checked.
+	: subject
+	n
+	/${scissors_line}/q
+	/${blank_line}/!b subject
+	# Check the body of the message for problematic
+	# prefixes.
+	: body
+	n
+	/${scissors_line}/q
+	/${comment_line}/b body
+	/^diff -/{p;q;}
+	/^Index: /{p;q;}
+	b body
+	" "$1")"
+if test -n "$line"
+then
+	echo >&2 "Message contains a diff that will confuse 'git am'."
+	echo >&2 "To fix this indent the diff."
+	ret=1
+fi
+
+exit $ret

src/barecode/BareCodeAUR/barecode-git/hooks/fsmonitor-watchman.sample

@@ -0,0 +1,168 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+use IPC::Open2;
+
+# An example hook script to integrate Watchman
+# (https://facebook.github.io/watchman/) with git to speed up detecting
+# new and modified files.
+#
+# The hook is passed a version (currently 2) and last update token
+# formatted as a string and outputs to stdout a new update token and
+# all files that have been modified since the update token. Paths must
+# be relative to the root of the working tree and separated by a single NUL.
+#
+# To enable this hook, rename this file to "query-watchman" and set
+# 'git config core.fsmonitor .git/hooks/query-watchman'
+#
+my ($version, $last_update_token) = @ARGV;
+
+# Uncomment for debugging
+# print STDERR "$0 $version $last_update_token\n";
+
+# Check the hook interface version
+if ($version ne 2) {
+	die "Unsupported query-fsmonitor hook version '$version'.\n" .
+	    "Falling back to scanning...\n";
+}
+
+my $git_work_tree = get_working_dir();
+
+my $json_pkg;
+eval {
+	require JSON::XS;
+	$json_pkg = "JSON::XS";
+	1;
+} or do {
+	require JSON::PP;
+	$json_pkg = "JSON::PP";
+};
+
+launch_watchman();
+
+sub launch_watchman {
+	my $o = watchman_query();
+	if (is_work_tree_watched($o)) {
+		output_result($o->{clock}, @{$o->{files}});
+	}
+}
+
+sub output_result {
+	my ($clockid, @files) = @_;
+
+	# Uncomment for debugging watchman output
+	# open (my $fh, ">", ".git/watchman-output.out");
+	# binmode $fh, ":utf8";
+	# print $fh "$clockid\n@files\n";
+	# close $fh;
+
+	binmode STDOUT, ":utf8";
+	print $clockid;
+	print "\0";
+	local $, = "\0";
+	print @files;
+}
+
+sub watchman_clock {
+	my $response = qx/watchman clock "$git_work_tree"/;
+	die "Failed to get clock id on '$git_work_tree'.\n" .
+		"Falling back to scanning...\n" if $? != 0;
+
+	return $json_pkg->new->utf8->decode($response);
+}
+
+sub watchman_query {
+	my $pid = open2(\*CHLD_OUT, \*CHLD_IN, 'watchman -j --no-pretty')
+	or die "open2() failed: $!\n" .
+	"Falling back to scanning...\n";
+
+	# In the query expression below we're asking for names of files that
+	# changed since $last_update_token but not from the .git folder.
+	#
+	# To accomplish this, we're using the "since" generator to use the
+	# recency index to select candidate nodes and "fields" to limit the
+	# output to file names only. Then we're using the "expression" term to
+	# further constrain the results.
+	my $last_update_line = "";
+	if (substr($last_update_token, 0, 1) eq "c") {
+		$last_update_token = "\"$last_update_token\"";
+		$last_update_line = qq[\n"since": $last_update_token,];
+	}
+	my $query = <<"	END";
+		["query", "$git_work_tree", {$last_update_line
+			"fields": ["name"],
+			"expression": ["not", ["dirname", ".git"]]
+		}]
+	END
+
+	# Uncomment for debugging the watchman query
+	# open (my $fh, ">", ".git/watchman-query.json");
+	# print $fh $query;
+	# close $fh;
+
+	print CHLD_IN $query;
+	close CHLD_IN;
+	my $response = do {local $/; <CHLD_OUT>};
+
+	# Uncomment for debugging the watch response
+	# open ($fh, ">", ".git/watchman-response.json");
+	# print $fh $response;
+	# close $fh;
+
+	die "Watchman: command returned no output.\n" .
+	"Falling back to scanning...\n" if $response eq "";
+	die "Watchman: command returned invalid output: $response\n" .
+	"Falling back to scanning...\n" unless $response =~ /^\{/;
+
+	return $json_pkg->new->utf8->decode($response);
+}
+
+sub is_work_tree_watched {
+	my ($output) = @_;
+	my $error = $output->{error};
+	if ($error and $error =~ m/unable to resolve root .* directory (.*) is not watched/) {
+		my $response = qx/watchman watch "$git_work_tree"/;
+		die "Failed to make watchman watch '$git_work_tree'.\n" .
+		    "Falling back to scanning...\n" if $? != 0;
+		$output = $json_pkg->new->utf8->decode($response);
+		$error = $output->{error};
+		die "Watchman: $error.\n" .
+		"Falling back to scanning...\n" if $error;
+
+		# Uncomment for debugging watchman output
+		# open (my $fh, ">", ".git/watchman-output.out");
+		# close $fh;
+
+		# Watchman will always return all files on the first query so
+		# return the fast "everything is dirty" flag to git and do the
+		# Watchman query just to get it over with now so we won't pay
+		# the cost in git to look up each individual file.
+		my $o = watchman_clock();
+		$error = $o->{error};
+
+		die "Watchman: $error.\n" .
+		"Falling back to scanning...\n" if $error;
+
+		output_result($o->{clock}, ("/"));
+		return 0;
+	}
+
+	die "Watchman: $error.\n" .
+	"Falling back to scanning...\n" if $error;
+
+	return 1;
+}
+
+sub get_working_dir {
+	my $working_dir;
+	if ($^O =~ 'msys' || $^O =~ 'cygwin') {
+		$working_dir = Win32::GetCwd();
+		$working_dir =~ tr/\\/\//;
+	} else {
+		require Cwd;
+		$working_dir = Cwd::cwd();
+	}
+
+	return $working_dir;
+}

src/barecode/BareCodeAUR/barecode-git/hooks/post-update.sample

@@ -0,0 +1,8 @@
+#!/bin/sh
+#
+# An example hook script to prepare a packed repository for use over
+# dumb transports.
+#
+# To enable this hook, rename this file to "post-update".
+
+exec git update-server-info

src/barecode/BareCodeAUR/barecode-git/hooks/pre-applypatch.sample

@@ -0,0 +1,14 @@
+#!/bin/sh
+#
+# An example hook script to verify what is about to be committed
+# by applypatch from an e-mail message.
+#
+# The hook should exit with non-zero status after issuing an
+# appropriate message if it wants to stop the commit.
+#
+# To enable this hook, rename this file to "pre-applypatch".
+
+. git-sh-setup
+precommit="$(git rev-parse --git-path hooks/pre-commit)"
+test -x "$precommit" && exec "$precommit" ${1+"$@"}
+:

src/barecode/BareCodeAUR/barecode-git/hooks/pre-commit.sample

@@ -0,0 +1,49 @@
+#!/bin/sh
+#
+# An example hook script to verify what is about to be committed.
+# Called by "git commit" with no arguments.  The hook should
+# exit with non-zero status after issuing an appropriate message if
+# it wants to stop the commit.
+#
+# To enable this hook, rename this file to "pre-commit".
+
+if git rev-parse --verify HEAD >/dev/null 2>&1
+then
+	against=HEAD
+else
+	# Initial commit: diff against an empty tree object
+	against=$(git hash-object -t tree /dev/null)
+fi
+
+# If you want to allow non-ASCII filenames set this variable to true.
+allownonascii=$(git config --type=bool hooks.allownonascii)
+
+# Redirect output to stderr.
+exec 1>&2
+
+# Cross platform projects tend to avoid non-ASCII filenames; prevent
+# them from being added to the repository. We exploit the fact that the
+# printable range starts at the space character and ends with tilde.
+if [ "$allownonascii" != "true" ] &&
+	# Note that the use of brackets around a tr range is ok here, (it's
+	# even required, for portability to Solaris 10's /usr/bin/tr), since
+	# the square bracket bytes happen to fall in the designated range.
+	test $(git diff-index --cached --name-only --diff-filter=A -z $against |
+	  LC_ALL=C tr -d '[ -~]\0' | wc -c) != 0
+then
+	cat <<\EOF
+Error: Attempt to add a non-ASCII file name.
+
+This can cause problems if you want to work with people on other platforms.
+
+To be portable it is advisable to rename the file.
+
+If you know what you are doing you can disable this check using:
+
+  git config hooks.allownonascii true
+EOF
+	exit 1
+fi
+
+# If there are whitespace errors, print the offending file names and fail.
+exec git diff-index --check --cached $against --

src/barecode/BareCodeAUR/barecode-git/hooks/pre-merge-commit.sample

@@ -0,0 +1,13 @@
+#!/bin/sh
+#
+# An example hook script to verify what is about to be committed.
+# Called by "git merge" with no arguments.  The hook should
+# exit with non-zero status after issuing an appropriate message to
+# stderr if it wants to stop the merge commit.
+#
+# To enable this hook, rename this file to "pre-merge-commit".
+
+. git-sh-setup
+test -x "$GIT_DIR/hooks/pre-commit" &&
+        exec "$GIT_DIR/hooks/pre-commit"
+:

src/barecode/BareCodeAUR/barecode-git/hooks/pre-push.sample

@@ -0,0 +1,53 @@
+#!/bin/sh
+
+# An example hook script to verify what is about to be pushed.  Called by "git
+# push" after it has checked the remote status, but before anything has been
+# pushed.  If this script exits with a non-zero status nothing will be pushed.
+#
+# This hook is called with the following parameters:
+#
+# $1 -- Name of the remote to which the push is being done
+# $2 -- URL to which the push is being done
+#
+# If pushing without using a named remote those arguments will be equal.
+#
+# Information about the commits which are being pushed is supplied as lines to
+# the standard input in the form:
+#
+#   <local ref> <local oid> <remote ref> <remote oid>
+#
+# This sample shows how to prevent push of commits where the log message starts
+# with "WIP" (work in progress).
+
+remote="$1"
+url="$2"
+
+zero=$(git hash-object --stdin </dev/null | tr '[0-9a-f]' '0')
+
+while read local_ref local_oid remote_ref remote_oid
+do
+	if test "$local_oid" = "$zero"
+	then
+		# Handle delete
+		:
+	else
+		if test "$remote_oid" = "$zero"
+		then
+			# New branch, examine all commits
+			range="$local_oid"
+		else
+			# Update to existing branch, examine new commits
+			range="$remote_oid..$local_oid"
+		fi
+
+		# Check for WIP commit
+		commit=$(git rev-list -n 1 --grep '^WIP' "$range")
+		if test -n "$commit"
+		then
+			echo >&2 "Found WIP commit in $local_ref, not pushing"
+			exit 1
+		fi
+	fi
+done
+
+exit 0

src/barecode/BareCodeAUR/barecode-git/hooks/pre-rebase.sample

@@ -0,0 +1,169 @@
+#!/bin/sh
+#
+# Copyright (c) 2006, 2008 Junio C Hamano
+#
+# The "pre-rebase" hook is run just before "git rebase" starts doing
+# its job, and can prevent the command from running by exiting with
+# non-zero status.
+#
+# The hook is called with the following parameters:
+#
+# $1 -- the upstream the series was forked from.
+# $2 -- the branch being rebased (or empty when rebasing the current branch).
+#
+# This sample shows how to prevent topic branches that are already
+# merged to 'next' branch from getting rebased, because allowing it
+# would result in rebasing already published history.
+
+publish=next
+basebranch="$1"
+if test "$#" = 2
+then
+	topic="refs/heads/$2"
+else
+	topic=`git symbolic-ref HEAD` ||
+	exit 0 ;# we do not interrupt rebasing detached HEAD
+fi
+
+case "$topic" in
+refs/heads/??/*)
+	;;
+*)
+	exit 0 ;# we do not interrupt others.
+	;;
+esac
+
+# Now we are dealing with a topic branch being rebased
+# on top of master.  Is it OK to rebase it?
+
+# Does the topic really exist?
+git show-ref -q "$topic" || {
+	echo >&2 "No such branch $topic"
+	exit 1
+}
+
+# Is topic fully merged to master?
+not_in_master=`git rev-list --pretty=oneline ^master "$topic"`
+if test -z "$not_in_master"
+then
+	echo >&2 "$topic is fully merged to master; better remove it."
+	exit 1 ;# we could allow it, but there is no point.
+fi
+
+# Is topic ever merged to next?  If so you should not be rebasing it.
+only_next_1=`git rev-list ^master "^$topic" ${publish} | sort`
+only_next_2=`git rev-list ^master           ${publish} | sort`
+if test "$only_next_1" = "$only_next_2"
+then
+	not_in_topic=`git rev-list "^$topic" master`
+	if test -z "$not_in_topic"
+	then
+		echo >&2 "$topic is already up to date with master"
+		exit 1 ;# we could allow it, but there is no point.
+	else
+		exit 0
+	fi
+else
+	not_in_next=`git rev-list --pretty=oneline ^${publish} "$topic"`
+	/usr/bin/perl -e '
+		my $topic = $ARGV[0];
+		my $msg = "* $topic has commits already merged to public branch:\n";
+		my (%not_in_next) = map {
+			/^([0-9a-f]+) /;
+			($1 => 1);
+		} split(/\n/, $ARGV[1]);
+		for my $elem (map {
+				/^([0-9a-f]+) (.*)$/;
+				[$1 => $2];
+			} split(/\n/, $ARGV[2])) {
+			if (!exists $not_in_next{$elem->[0]}) {
+				if ($msg) {
+					print STDERR $msg;
+					undef $msg;
+				}
+				print STDERR " $elem->[1]\n";
+			}
+		}
+	' "$topic" "$not_in_next" "$not_in_master"
+	exit 1
+fi
+
+<<\DOC_END
+
+This sample hook safeguards topic branches that have been
+published from being rewound.
+
+The workflow assumed here is:
+
+ * Once a topic branch forks from "master", "master" is never
+   merged into it again (either directly or indirectly).
+
+ * Once a topic branch is fully cooked and merged into "master",
+   it is deleted.  If you need to build on top of it to correct
+   earlier mistakes, a new topic branch is created by forking at
+   the tip of the "master".  This is not strictly necessary, but
+   it makes it easier to keep your history simple.
+
+ * Whenever you need to test or publish your changes to topic
+   branches, merge them into "next" branch.
+
+The script, being an example, hardcodes the publish branch name
+to be "next", but it is trivial to make it configurable via
+$GIT_DIR/config mechanism.
+
+With this workflow, you would want to know:
+
+(1) ... if a topic branch has ever been merged to "next".  Young
+    topic branches can have stupid mistakes you would rather
+    clean up before publishing, and things that have not been
+    merged into other branches can be easily rebased without
+    affecting other people.  But once it is published, you would
+    not want to rewind it.
+
+(2) ... if a topic branch has been fully merged to "master".
+    Then you can delete it.  More importantly, you should not
+    build on top of it -- other people may already want to
+    change things related to the topic as patches against your
+    "master", so if you need further changes, it is better to
+    fork the topic (perhaps with the same name) afresh from the
+    tip of "master".
+
+Let's look at this example:
+
+		   o---o---o---o---o---o---o---o---o---o "next"
+		  /       /           /           /
+		 /   a---a---b A     /           /
+		/   /               /           /
+	       /   /   c---c---c---c B         /
+	      /   /   /             \         /
+	     /   /   /   b---b C     \       /
+	    /   /   /   /             \     /
+    ---o---o---o---o---o---o---o---o---o---o---o "master"
+
+
+A, B and C are topic branches.
+
+ * A has one fix since it was merged up to "next".
+
+ * B has finished.  It has been fully merged up to "master" and "next",
+   and is ready to be deleted.
+
+ * C has not merged to "next" at all.
+
+We would want to allow C to be rebased, refuse A, and encourage
+B to be deleted.
+
+To compute (1):
+
+	git rev-list ^master ^topic next
+	git rev-list ^master        next
+
+	if these match, topic has not merged in next at all.
+
+To compute (2):
+
+	git rev-list master..topic
+
+	if this is empty, it is fully merged to "master".
+
+DOC_END

src/barecode/BareCodeAUR/barecode-git/hooks/pre-receive.sample

@@ -0,0 +1,24 @@
+#!/bin/sh
+#
+# An example hook script to make use of push options.
+# The example simply echoes all push options that start with 'echoback='
+# and rejects all pushes when the "reject" push option is used.
+#
+# To enable this hook, rename this file to "pre-receive".
+
+if test -n "$GIT_PUSH_OPTION_COUNT"
+then
+	i=0
+	while test "$i" -lt "$GIT_PUSH_OPTION_COUNT"
+	do
+		eval "value=\$GIT_PUSH_OPTION_$i"
+		case "$value" in
+		echoback=*)
+			echo "echo from the pre-receive-hook: ${value#*=}" >&2
+			;;
+		reject)
+			exit 1
+		esac
+		i=$((i + 1))
+	done
+fi

src/barecode/BareCodeAUR/barecode-git/hooks/prepare-commit-msg.sample

@@ -0,0 +1,42 @@
+#!/bin/sh
+#
+# An example hook script to prepare the commit log message.
+# Called by "git commit" with the name of the file that has the
+# commit message, followed by the description of the commit
+# message's source.  The hook's purpose is to edit the commit
+# message file.  If the hook fails with a non-zero status,
+# the commit is aborted.
+#
+# To enable this hook, rename this file to "prepare-commit-msg".
+
+# This hook includes three examples. The first one removes the
+# "# Please enter the commit message..." help message.
+#
+# The second includes the output of "git diff --name-status -r"
+# into the message, just before the "git status" output.  It is
+# commented because it doesn't cope with --amend or with squashed
+# commits.
+#
+# The third example adds a Signed-off-by line to the message, that can
+# still be edited.  This is rarely a good idea.
+
+COMMIT_MSG_FILE=$1
+COMMIT_SOURCE=$2
+SHA1=$3
+
+/usr/bin/perl -i.bak -ne 'print unless(m/^. Please enter the commit message/..m/^#$/)' "$COMMIT_MSG_FILE"
+
+# case "$COMMIT_SOURCE,$SHA1" in
+#  ,|template,)
+#    /usr/bin/perl -i.bak -pe '
+#       print "\n" . `git diff --cached --name-status -r`
+# 	 if /^#/ && $first++ == 0' "$COMMIT_MSG_FILE" ;;
+#  *) ;;
+# esac
+
+# SOB=$(git var GIT_COMMITTER_IDENT | sed -n 's/^\(.*>\).*$/Signed-off-by: \1/p')
+# git interpret-trailers --in-place --trailer "$SOB" "$COMMIT_MSG_FILE"
+# if test -z "$COMMIT_SOURCE"
+# then
+#   /usr/bin/perl -i.bak -pe 'print "\n" if !$first_line++' "$COMMIT_MSG_FILE"
+# fi

src/barecode/BareCodeAUR/barecode-git/hooks/push-to-checkout.sample

@@ -0,0 +1,78 @@
+#!/bin/sh
+
+# An example hook script to update a checked-out tree on a git push.
+#
+# This hook is invoked by git-receive-pack(1) when it reacts to git
+# push and updates reference(s) in its repository, and when the push
+# tries to update the branch that is currently checked out and the
+# receive.denyCurrentBranch configuration variable is set to
+# updateInstead.
+#
+# By default, such a push is refused if the working tree and the index
+# of the remote repository has any difference from the currently
+# checked out commit; when both the working tree and the index match
+# the current commit, they are updated to match the newly pushed tip
+# of the branch. This hook is to be used to override the default
+# behaviour; however the code below reimplements the default behaviour
+# as a starting point for convenient modification.
+#
+# The hook receives the commit with which the tip of the current
+# branch is going to be updated:
+commit=$1
+
+# It can exit with a non-zero status to refuse the push (when it does
+# so, it must not modify the index or the working tree).
+die () {
+	echo >&2 "$*"
+	exit 1
+}
+
+# Or it can make any necessary changes to the working tree and to the
+# index to bring them to the desired state when the tip of the current
+# branch is updated to the new commit, and exit with a zero status.
+#
+# For example, the hook can simply run git read-tree -u -m HEAD "$1"
+# in order to emulate git fetch that is run in the reverse direction
+# with git push, as the two-tree form of git read-tree -u -m is
+# essentially the same as git switch or git checkout that switches
+# branches while keeping the local changes in the working tree that do
+# not interfere with the difference between the branches.
+
+# The below is a more-or-less exact translation to shell of the C code
+# for the default behaviour for git's push-to-checkout hook defined in
+# the push_to_deploy() function in builtin/receive-pack.c.
+#
+# Note that the hook will be executed from the repository directory,
+# not from the working tree, so if you want to perform operations on
+# the working tree, you will have to adapt your code accordingly, e.g.
+# by adding "cd .." or using relative paths.
+
+if ! git update-index -q --ignore-submodules --refresh
+then
+	die "Up-to-date check failed"
+fi
+
+if ! git diff-files --quiet --ignore-submodules --
+then
+	die "Working directory has unstaged changes"
+fi
+
+# This is a rough translation of:
+#
+#   head_has_history() ? "HEAD" : EMPTY_TREE_SHA1_HEX
+if git cat-file -e HEAD 2>/dev/null
+then
+	head=HEAD
+else
+	head=$(git hash-object -t tree --stdin </dev/null)
+fi
+
+if ! git diff-index --quiet --cached --ignore-submodules $head --
+then
+	die "Working directory has staged changes"
+fi
+
+if ! git read-tree -u -m "$commit"
+then
+	die "Could not update working tree to new HEAD"
+fi

src/barecode/BareCodeAUR/barecode-git/hooks/sendemail-validate.sample

@@ -0,0 +1,77 @@
+#!/bin/sh
+
+# An example hook script to validate a patch (and/or patch series) before
+# sending it via email.
+#
+# The hook should exit with non-zero status after issuing an appropriate
+# message if it wants to prevent the email(s) from being sent.
+#
+# To enable this hook, rename this file to "sendemail-validate".
+#
+# By default, it will only check that the patch(es) can be applied on top of
+# the default upstream branch without conflicts in a secondary worktree. After
+# validation (successful or not) of the last patch of a series, the worktree
+# will be deleted.
+#
+# The following config variables can be set to change the default remote and
+# remote ref that are used to apply the patches against:
+#
+#   sendemail.validateRemote (default: origin)
+#   sendemail.validateRemoteRef (default: HEAD)
+#
+# Replace the TODO placeholders with appropriate checks according to your
+# needs.
+
+validate_cover_letter () {
+	file="$1"
+	# TODO: Replace with appropriate checks (e.g. spell checking).
+	true
+}
+
+validate_patch () {
+	file="$1"
+	# Ensure that the patch applies without conflicts.
+	git am -3 "$file" || return
+	# TODO: Replace with appropriate checks for this patch
+	# (e.g. checkpatch.pl).
+	true
+}
+
+validate_series () {
+	# TODO: Replace with appropriate checks for the whole series
+	# (e.g. quick build, coding style checks, etc.).
+	true
+}
+
+# main -------------------------------------------------------------------------
+
+if test "$GIT_SENDEMAIL_FILE_COUNTER" = 1
+then
+	remote=$(git config --default origin --get sendemail.validateRemote) &&
+	ref=$(git config --default HEAD --get sendemail.validateRemoteRef) &&
+	worktree=$(mktemp --tmpdir -d sendemail-validate.XXXXXXX) &&
+	git worktree add -fd --checkout "$worktree" "refs/remotes/$remote/$ref" &&
+	git config --replace-all sendemail.validateWorktree "$worktree"
+else
+	worktree=$(git config --get sendemail.validateWorktree)
+fi || {
+	echo "sendemail-validate: error: failed to prepare worktree" >&2
+	exit 1
+}
+
+unset GIT_DIR GIT_WORK_TREE
+cd "$worktree" &&
+
+if grep -q "^diff --git " "$1"
+then
+	validate_patch "$1"
+else
+	validate_cover_letter "$1"
+fi &&
+
+if test "$GIT_SENDEMAIL_FILE_COUNTER" = "$GIT_SENDEMAIL_FILE_TOTAL"
+then
+	git config --unset-all sendemail.validateWorktree &&
+	trap 'git worktree remove -ff "$worktree"' EXIT &&
+	validate_series
+fi

src/barecode/BareCodeAUR/barecode-git/hooks/update.sample

@@ -0,0 +1,128 @@
+#!/bin/sh
+#
+# An example hook script to block unannotated tags from entering.
+# Called by "git receive-pack" with arguments: refname sha1-old sha1-new
+#
+# To enable this hook, rename this file to "update".
+#
+# Config
+# ------
+# hooks.allowunannotated
+#   This boolean sets whether unannotated tags will be allowed into the
+#   repository.  By default they won't be.
+# hooks.allowdeletetag
+#   This boolean sets whether deleting tags will be allowed in the
+#   repository.  By default they won't be.
+# hooks.allowmodifytag
+#   This boolean sets whether a tag may be modified after creation. By default
+#   it won't be.
+# hooks.allowdeletebranch
+#   This boolean sets whether deleting branches will be allowed in the
+#   repository.  By default they won't be.
+# hooks.denycreatebranch
+#   This boolean sets whether remotely creating branches will be denied
+#   in the repository.  By default this is allowed.
+#
+
+# --- Command line
+refname="$1"
+oldrev="$2"
+newrev="$3"
+
+# --- Safety check
+if [ -z "$GIT_DIR" ]; then
+	echo "Don't run this script from the command line." >&2
+	echo " (if you want, you could supply GIT_DIR then run" >&2
+	echo "  $0 <ref> <oldrev> <newrev>)" >&2
+	exit 1
+fi
+
+if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then
+	echo "usage: $0 <ref> <oldrev> <newrev>" >&2
+	exit 1
+fi
+
+# --- Config
+allowunannotated=$(git config --type=bool hooks.allowunannotated)
+allowdeletebranch=$(git config --type=bool hooks.allowdeletebranch)
+denycreatebranch=$(git config --type=bool hooks.denycreatebranch)
+allowdeletetag=$(git config --type=bool hooks.allowdeletetag)
+allowmodifytag=$(git config --type=bool hooks.allowmodifytag)
+
+# check for no description
+projectdesc=$(sed -e '1q' "$GIT_DIR/description")
+case "$projectdesc" in
+"Unnamed repository"* | "")
+	echo "*** Project description file hasn't been set" >&2
+	exit 1
+	;;
+esac
+
+# --- Check types
+# if $newrev is 0000...0000, it's a commit to delete a ref.
+zero=$(git hash-object --stdin </dev/null | tr '[0-9a-f]' '0')
+if [ "$newrev" = "$zero" ]; then
+	newrev_type=delete
+else
+	newrev_type=$(git cat-file -t $newrev)
+fi
+
+case "$refname","$newrev_type" in
+	refs/tags/*,commit)
+		# un-annotated tag
+		short_refname=${refname##refs/tags/}
+		if [ "$allowunannotated" != "true" ]; then
+			echo "*** The un-annotated tag, $short_refname, is not allowed in this repository" >&2
+			echo "*** Use 'git tag [ -a | -s ]' for tags you want to propagate." >&2
+			exit 1
+		fi
+		;;
+	refs/tags/*,delete)
+		# delete tag
+		if [ "$allowdeletetag" != "true" ]; then
+			echo "*** Deleting a tag is not allowed in this repository" >&2
+			exit 1
+		fi
+		;;
+	refs/tags/*,tag)
+		# annotated tag
+		if [ "$allowmodifytag" != "true" ] && git rev-parse $refname > /dev/null 2>&1
+		then
+			echo "*** Tag '$refname' already exists." >&2
+			echo "*** Modifying a tag is not allowed in this repository." >&2
+			exit 1
+		fi
+		;;
+	refs/heads/*,commit)
+		# branch
+		if [ "$oldrev" = "$zero" -a "$denycreatebranch" = "true" ]; then
+			echo "*** Creating a branch is not allowed in this repository" >&2
+			exit 1
+		fi
+		;;
+	refs/heads/*,delete)
+		# delete branch
+		if [ "$allowdeletebranch" != "true" ]; then
+			echo "*** Deleting a branch is not allowed in this repository" >&2
+			exit 1
+		fi
+		;;
+	refs/remotes/*,commit)
+		# tracking branch
+		;;
+	refs/remotes/*,delete)
+		# delete tracking branch
+		if [ "$allowdeletebranch" != "true" ]; then
+			echo "*** Deleting a tracking branch is not allowed in this repository" >&2
+			exit 1
+		fi
+		;;
+	*)
+		# Anything else (is there anything else?)
+		echo "*** Update hook: unknown type of update to ref $refname of type $newrev_type" >&2
+		exit 1
+		;;
+esac
+
+# --- Finished
+exit 0

src/barecode/BareCodeAUR/barecode-git/info/attributes

@@ -0,0 +1 @@
+* -export-subst -export-ignore

src/barecode/BareCodeAUR/barecode-git/info/exclude

@@ -0,0 +1,6 @@
+# git ls-files --others --exclude-from=.git/info/exclude
+# Lines that start with '#' are comments.
+# For a project mostly in C, the following would be a good set of
+# exclude patterns (uncomment them if you want to use them):
+# *.[oa]
+# *~

src/barecode/BareCodeAUR/barecode-git/packed-refs

@@ -0,0 +1,4 @@
+# pack-refs with: peeled fully-peeled sorted 
+cb6617222dbcac30aaf15bf336b150fed440cc7f refs/heads/main
+ca573209e715409e5989324aaeaa4efbd4da5642 refs/tags/v1.0.0
+^36e074f43d5b76d940d953956b0ed80899e71848

src/barecode/BareCodeAUR/pkg/barecode-git/.PKGINFO

@@ -0,0 +1,19 @@
+# Generated by makepkg 7.1.0
+# using fakeroot version 1.37.2
+pkgname = barecode-git
+pkgbase = barecode-git
+xdata = pkgtype=pkg
+pkgver = r5.cb66172-1
+pkgdesc = Modularer Code-Editor, entwickelt von Projekt Hirnfrei (git)
+url = https://git.projekt-hirnfrei.de/diabolus/BareCode
+builddate = 1781069213
+packager = Unknown Packager
+size = 1191503
+arch = x86_64
+license = MIT
+conflict = barecode
+provides = barecode
+depend = qt6-base
+makedepend = cmake
+makedepend = ninja
+makedepend = git

src/barecode/BareCodeAUR/pkg/barecode-git/usr/share/applications/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

src/barecode/BareCodeAUR/pkg/barecode-git/usr/share/applications/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

src/barecode/BareCodeAUR/pkg/barecode-git/usr/share/licenses/barecode-git/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.

src/barecode/CMakeLists.txt

@@ -0,0 +1,143 @@
+cmake_minimum_required(VERSION 3.16)
+
+project(BareCode
+    VERSION 1.1.0
+    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
+# Haiku definiert kein eigenes CMake-Flag — wir erkennen es über den
+# Systemnamen. CMAKE_SYSTEM_NAME ist "Haiku" auf Haiku OS.
+# ---------------------------------------------------------------------------
+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()
+
+# Include cmake modules
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
+
+# Collect sources
+add_subdirectory(src)
+
+# Resources
+qt_add_resources(BARECODE_RESOURCES resources/resources.qrc)
+
+# ---------------------------------------------------------------------------
+# Executable
+# Unter Windows: .rc-Datei für EXE-Icon einbinden
+# ---------------------------------------------------------------------------
+if(PLATFORM_WINDOWS)
+    qt_add_executable(BareCode
+        main.cpp
+        BareCode.rc
+        ${BARECODE_RESOURCES}
+    )
+else()
+    qt_add_executable(BareCode
+        main.cpp
+        ${BARECODE_RESOURCES}
+    )
+endif()
+
+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 ${CMAKE_INSTALL_BINDIR}
+)
+
+# ---- Linux (FreeDesktop) --------------------------------------------------
+if(PLATFORM_LINUX)
+    foreach(SIZE 16 32 48 64 128 256 512)
+        install(FILES resources/icon_${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()
+
+# ---- Haiku ----------------------------------------------------------------
+# Haiku verwendet kein FreeDesktop-System. Icons und MIME-Typen werden
+# nativ über 'mimeset' gesetzt. Die PNG-Icons legen wir in den
+# Haiku-typischen Pfad, ein post-install Skript ruft mimeset auf.
+if(PLATFORM_HAIKU)
+    install(FILES resources/icon_256.png
+        DESTINATION ${CMAKE_INSTALL_DATADIR}/BareCode
+        RENAME BareCode.png
+    )
+
+    # mimeset nach der Installation ausführen um MIME-Typ zu registrieren
+    install(CODE "
+        execute_process(
+            COMMAND mimeset -f \"\$ENV{DESTDIR}${CMAKE_INSTALL_FULL_BINDIR}/BareCode\"
+            RESULT_VARIABLE _mimeset_result
+        )
+        if(NOT _mimeset_result EQUAL 0)
+            message(WARNING \"mimeset konnte nicht ausgeführt werden – MIME-Typ muss manuell gesetzt werden.\")
+        endif()
+    ")
+endif()
+
+# ---- macOS ----------------------------------------------------------------
+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()
+

src/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.

src/barecode/README.md

@@ -0,0 +1,171 @@
+# BareCode
+
+**BareCode – Schlanker Code-Editor für Web-Entwickler**  
+Version 1.1.0
+
+Kompiliert sauber auf **Linux**, **Windows** und **Haiku**.
+
+---
+
+## Features
+
+| Feature | Details |
+|---|---|
+| Projektbaum | Linkes Panel — zeigt nur das gewählte Projektverzeichnis |
+| Tabs | Mehrere Dateien gleichzeitig, verschiebbar und schließbar |
+| Änderungsindikator | ● im Tab-Titel bei ungespeicherten Änderungen |
+| Syntax-Highlighting | HTML, PHP, CSS, C/C++ inkl. mehrzeiliger Kommentare |
+| Zeilennummern | Eigener Gutter, aktuelle Zeile hervorgehoben |
+| Einrück-Führungslinien | Vertikale Linien wie in VS Code |
+| Auto-Indent | Einrückungstiefe wird bei Enter übernommen |
+| Tab / Shift+Tab | Ein- und Ausrücken, auch für mehrere Zeilen gleichzeitig |
+| Smart Backspace | Springt zur vorherigen Tab-Stop-Position |
+| Speichern | Speichern, Speichern unter, Alles speichern |
+| Suchen & Ersetzen | Einzeln, Alle, In Auswahl, Regex, Live-Hervorhebung |
+| In Dateien suchen | Rekursive Projektsuche mit Ergebnisliste, direkt zur Zeile |
+| Dark / Light Mode | Umschaltbar, wird gespeichert |
+| Session | Geöffnete Dateien und aktiver Tab werden wiederhergestellt |
+
+---
+
+## Projektstruktur
+
+```
+BareCode/
+├── CMakeLists.txt
+├── main.cpp
+├── resources/
+│   ├── resources.qrc
+│   └── icon_*.png
+└── src/
+    ├── core/         # MainWindow, ProjectManager, Settings, ThemeManager, IPlugin
+    ├── editor/       # EditorPanel, EditorTab, CodeEditor, SearchPanel, FileSearchPanel
+    ├── filetree/     # FileTreePanel
+    └── highlighter/  # SyntaxHighlighter, HighlighterFactory
+```
+
+Jedes Unterverzeichnis kompiliert als eigene statische Bibliothek.
+
+---
+
+## Abhängigkeiten & Bauen
+
+### Linux
+
+**Abhängigkeiten (Beispiel Ubuntu/Debian):**
+```bash
+sudo apt install cmake qt6-base-dev qt6-base-dev-tools libqt6concurrent6
+```
+
+**Abhängigkeiten (Arch/Manjaro):**
+```bash
+sudo pacman -S cmake qt6-base
+```
+
+**Bauen:**
+```bash
+cmake -B build -DCMAKE_BUILD_TYPE=Release
+cmake --build build -j$(nproc)
+./build/BareCode
+```
+
+**Installieren:**
+```bash
+sudo cmake --install build
+```
+
+---
+
+### Windows (Visual Studio)
+
+**Abhängigkeiten:**
+- [Qt6](https://www.qt.io/download) (Komponenten: Qt6 Base, Qt6 Concurrent)
+- CMake ≥ 3.16
+- Visual Studio 2019 oder neuer
+
+```bat
+cmake -B build -G "Visual Studio 17 2022" -A x64
+cmake --build build --config Release
+build\Release\BareCode.exe
+```
+
+**Windows Installer erstellen** (mit [Inno Setup](https://jrsoftware.org/isinfo.php)):
+```bat
+windeployqt --release build\Release\BareCode.exe
+```
+Danach das Inno Setup Skript ausführen.
+
+---
+
+### Haiku
+
+**Abhängigkeiten:**
+```bash
+pkgman install qt6_base qt6_base_devel
+```
+
+> **Hinweis:** `qt6_base_devel` enthält auf Haiku sowohl die Header als auch
+> die Build-Tools (`moc`, `rcc`, `qmake`). Getestet auf Haiku R1/beta5.
+
+**Bauen:**
+```bash
+cmake -B build -DCMAKE_BUILD_TYPE=Release
+cmake --build build -j$(nproc)
+./build/BareCode
+```
+
+**Installieren:**
+```bash
+cmake --install build
+```
+
+> Nach der Installation wird `mimeset` automatisch aufgerufen um den
+> MIME-Typ zu registrieren, damit BareCode im Haiku Tracker korrekt
+> als Anwendung erkannt wird.
+
+---
+
+## 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 |
+| Dark Mode | Strg+Shift+D |
+
+---
+
+## Erweitern
+
+### Neuen Highlighter 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
+
+Keine weiteren Dateien müssen geändert werden.
+
+### Neues Panel / Plugin hinzufügen
+
+1. `IPlugin`-Interface aus `src/core/IPlugin.h` implementieren
+2. `QWidget`-Subklasse für die UI erstellen
+3. In `MainWindow` instanziieren und verdrahten
+
+---
+
+## Code-Stil
+
+Allman-Klammerstil, C++17 durchgehend.
+
+---
+
+## Links
+
+- Website: [www.projekt-hirnfrei.de](https://www.projekt-hirnfrei.de)
+- Discord: [discord.projekt-hirnfrei.de](https://discord.projekt-hirnfrei.de)

src/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

src/barecode/main.cpp

@@ -0,0 +1,28 @@
+#include <QApplication>
+#include <QIcon>
+#include "core/MainWindow.h"
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+
+    app.setApplicationName("BareCode");
+    app.setApplicationVersion("1.1.0");
+    app.setOrganizationName("BareCode");
+
+    // Icon in allen verfügbaren Größen setzen
+    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);
+
+    MainWindow window;
+    window.show();
+
+    return app.exec();
+}

src/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>

src/barecode/src/CMakeLists.txt

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

src/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"),    "1.1.0");
+    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);
+}

src/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);
+};

src/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}/..
+)

src/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() {}
+};

src/barecode/src/core/MainWindow.cpp

@@ -0,0 +1,336 @@
+#include "MainWindow.h"
+
+#include <QApplication>
+#include <QFileDialog>
+#include <QMessageBox>
+#include <QCloseEvent>
+#include <QSettings>
+
+#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;
+
+// ---------------------------------------------------------------------------
+// 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);
+
+    // ---- 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);
+
+    // ---- 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);
+}
+
+// ---------------------------------------------------------------------------
+// Slots – Hilfe
+// ---------------------------------------------------------------------------
+void MainWindow::onAbout()
+{
+    AboutDialog dlg(this);
+    dlg.exec();
+}
+
+// ---------------------------------------------------------------------------
+// Slots – Projekt
+// ---------------------------------------------------------------------------
+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();
+}

src/barecode/src/core/MainWindow.h

@@ -0,0 +1,87 @@
+#pragma once
+
+#include <QMainWindow>
+#include <QSplitter>
+#include <QMenuBar>
+#include <QStatusBar>
+#include <QAction>
+#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;
+
+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();
+    // Ansicht
+    void onToggleDarkMode(bool checked);
+    // 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_actDarkMode    = nullptr;
+    QAction *m_actAbout       = nullptr;
+};

src/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();
+}

src/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;
+};

src/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);
+}

src/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;
+};

src/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;
+}

src/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;
+};

src/barecode/src/editor/CMakeLists.txt

@@ -0,0 +1,35 @@
+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
+)
+
+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}/..
+)

src/barecode/src/editor/CodeEditor.cpp

@@ -0,0 +1,556 @@
+#include "CodeEditor.h"
+#include "LineNumberArea.h"
+#include "ColorIndicator.h"
+#include "SignatureHelper.h"
+
+#include "core/Settings.h"
+#include "highlighter/HighlighterFactory.h"
+
+#include <QPainter>
+#include <QTextBlock>
+#include <QPaintEvent>
+#include <QResizeEvent>
+#include <QKeyEvent>
+#include <QMouseEvent>
+#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);
+    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::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
+// ---------------------------------------------------------------------------
+void CodeEditor::highlightCurrentLine()
+{
+    QList<QTextEdit::ExtraSelection> extraSelections;
+
+    if (!isReadOnly())
+    {
+        QTextEdit::ExtraSelection selection;
+
+        const QColor lineColor = palette().color(QPalette::AlternateBase);
+        selection.format.setBackground(lineColor);
+        selection.format.setProperty(QTextFormat::FullWidthSelection, true);
+        selection.cursor = textCursor();
+        selection.cursor.clearSelection();
+
+        extraSelections.append(selection);
+    }
+
+    setExtraSelections(extraSelections);
+}
+
+// ---------------------------------------------------------------------------
+// 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());
+
+        cursor.beginEditBlock();
+        for (QTextBlock b = startBlock; b != endBlock.next(); b = b.next())
+        {
+            const QString lineText = b.text();
+            int toRemove = 0;
+
+            if (m_settings->useSpacesForTabs())
+            {
+                // Bis zu tabSize führende Leerzeichen entfernen
+                for (int i = 0; i < tabSize && i < lineText.length(); ++i)
+                {
+                    if (lineText[i] == ' ')
+                    {
+                        ++toRemove;
+                    }
+                    else
+                    {
+                        break;
+                    }
+                }
+            }
+            else
+            {
+                // Einen führenden Tab entfernen
+                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())
+        {
+            // Mehrere Zeilen einrücken
+            QTextBlock startBlock = document()->findBlock(cursor.selectionStart());
+            QTextBlock endBlock   = document()->findBlock(cursor.selectionEnd());
+
+            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);
+}
+

src/barecode/src/editor/CodeEditor.h

@@ -0,0 +1,76 @@
+#pragma once
+
+#include <QPlainTextEdit>
+#include <QFont>
+#include <QString>
+#include <QTextBlock>
+
+class LineNumberArea;
+class Settings;
+class SyntaxHighlighter;
+class ColorIndicator;
+class SignatureHelper;
+
+// ---------------------------------------------------------------------------
+// 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(); }
+
+signals:
+    void fileSaved(const QString &filePath);
+
+protected:
+    void resizeEvent(QResizeEvent *event) override;
+    void keyPressEvent(QKeyEvent *event) override;
+    void paintEvent(QPaintEvent *event) override;
+    void mousePressEvent(QMouseEvent *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);
+
+    Settings          *m_settings        = nullptr;
+    LineNumberArea    *m_lineNumberArea   = nullptr;
+    SyntaxHighlighter *m_highlighter      = nullptr;
+    ColorIndicator    *m_colorIndicator   = nullptr;
+    SignatureHelper   *m_signatureHelper  = nullptr;
+    QString            m_filePath;
+};

src/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;
+}
+
+
+

src/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;
+};

src/barecode/src/editor/EditorPanel.cpp

@@ -0,0 +1,258 @@
+#include "EditorPanel.h"
+#include "EditorTab.h"
+#include "CodeEditor.h"
+#include "SearchPanel.h"
+#include "FileSearchPanel.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_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);
+}
+
+// ---------------------------------------------------------------------------
+// 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);
+
+    // 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);
+    });
+}
+
+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::setSearchRoot(const QString &path)
+{
+    m_fileSearch->setSearchRoot(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);
+}

src/barecode/src/editor/EditorPanel.h

@@ -0,0 +1,60 @@
+#pragma once
+
+#include <QWidget>
+#include <QTabWidget>
+#include <QVBoxLayout>
+#include <QHash>
+#include <QString>
+
+class EditorTab;
+class Settings;
+class SearchPanel;
+class FileSearchPanel;
+
+// ---------------------------------------------------------------------------
+// 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 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;
+
+    QHash<QString, EditorTab *> m_openTabs;
+};

src/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;
+}

src/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;
+};

src/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;
+}

src/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;
+};

src/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);
+}

src/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;
+};

src/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();
+    }
+}

src/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;
+};

src/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;
+}

src/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
+};

src/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();
+}

src/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;
+};

src/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}/..
+)

src/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);
+    }
+}

src/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;
+};

src/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}/..
+)

src/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;
+}