- Auslisten aller im Projekt definierten Funktionen

- Suche nach toten Funktionen im Projekt
- Doppelklick auf Funktion öffnet die Datei mit der Deklaration

CMakeLists.txt

@@ -95,6 +95,10 @@ install(TARGETS BareCode
     RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
 )
 
+install(FILES LICENSE
+    DESTINATION ${CMAKE_INSTALL_DATADIR}/licenses/barecode
+)
+
 # ---- Linux (FreeDesktop) --------------------------------------------------
 if(PLATFORM_LINUX)
     foreach(SIZE 16 32 48 64 128 256 512)

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2025 Dany Thinnes – Projekt Hirnfrei
+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

PKGBUILD

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

PKGBUILD-git

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

src/core/MainWindow.cpp

@@ -119,6 +119,14 @@ void MainWindow::setupMenuBar()
     m_actFileSearch = mBearbeiten->addAction(tr("In &Dateien suchen…"), this, &MainWindow::onShowFileSearch);
     m_actFileSearch->setShortcut(Qt::CTRL | Qt::SHIFT | Qt::Key_F);
 
+    mBearbeiten->addSeparator();
+
+    m_actFuncList = mBearbeiten->addAction(tr("&Projektfunktionen…"), this, &MainWindow::onShowFunctionList);
+    m_actFuncList->setShortcut(Qt::CTRL | Qt::SHIFT | Qt::Key_P);
+
+    m_actDeadCode = mBearbeiten->addAction(tr("&Tote Funktionen suchen…"), this, &MainWindow::onShowDeadCode);
+    m_actDeadCode->setShortcut(Qt::CTRL | Qt::SHIFT | Qt::Key_T);
+
     // ---- Ansicht ----
     QMenu *mAnsicht = menuBar()->addMenu(tr("&Ansicht"));
 
@@ -281,6 +289,16 @@ void MainWindow::onAbout()
 // ---------------------------------------------------------------------------
 // Slots – Projekt
 // ---------------------------------------------------------------------------
+void MainWindow::onShowDeadCode()
+{
+    m_editor->showDeadCode();
+}
+
+void MainWindow::onShowFunctionList()
+{
+    m_editor->showFunctionList();
+}
+
 void MainWindow::onShowFileSearch()
 {
     m_editor->showFileSearchPanel();

src/core/MainWindow.h

@@ -42,6 +42,8 @@ private slots:
     void onRedo();
     void onShowSearch();
     void onShowFileSearch();
+    void onShowFunctionList();
+    void onShowDeadCode();
     // Ansicht
     void onToggleDarkMode(bool checked);
     // Hilfe
@@ -82,6 +84,8 @@ private:
     QAction *m_actRedo        = nullptr;
     QAction *m_actSearch      = nullptr;
     QAction *m_actFileSearch  = nullptr;
+    QAction *m_actFuncList    = nullptr;
+    QAction *m_actDeadCode    = nullptr;
     QAction *m_actDarkMode    = nullptr;
     QAction *m_actAbout       = nullptr;
 };

src/editor/CMakeLists.txt

@@ -17,6 +17,18 @@ set(EDITOR_SOURCES
     SignatureHelper.h
     SignatureTooltip.cpp
     SignatureTooltip.h
+    FunctionScanner.cpp
+    FunctionScanner.h
+    FunctionIndex.cpp
+    FunctionIndex.h
+    FunctionListPanel.cpp
+    FunctionListPanel.h
+    FunctionListDialog.cpp
+    FunctionListDialog.h
+    DeadCodeAnalyzer.cpp
+    DeadCodeAnalyzer.h
+    DeadCodeDialog.cpp
+    DeadCodeDialog.h
 )
 
 add_library(BareCode_Editor STATIC ${EDITOR_SOURCES})

src/editor/CodeEditor.cpp

@@ -2,6 +2,7 @@
 #include "LineNumberArea.h"
 #include "ColorIndicator.h"
 #include "SignatureHelper.h"
+#include "FunctionIndex.h"
 
 #include "core/Settings.h"
 #include "highlighter/HighlighterFactory.h"
@@ -289,6 +290,44 @@ void CodeEditor::paintEvent(QPaintEvent *event)
     }
 }
 
+void CodeEditor::setFunctionIndex(FunctionIndex *index)
+{
+    m_functionIndex = index;
+}
+
+void CodeEditor::mouseDoubleClickEvent(QMouseEvent *event)
+{
+    // Zuerst normales Verhalten — markiert das Wort unter dem Cursor
+    QPlainTextEdit::mouseDoubleClickEvent(event);
+
+    if (!m_functionIndex || !m_functionIndex->isReady())
+    {
+        return;
+    }
+
+    // Markiertes Wort auslesen
+    const QString word = textCursor().selectedText().trimmed();
+    if (word.isEmpty() || word.contains(' '))
+    {
+        return;
+    }
+
+    // Im Funktionsindex nachschlagen
+    const FunctionScanner::FunctionInfo info = m_functionIndex->lookup(word);
+    if (info.filePath.isEmpty())
+    {
+        return; // Nicht gefunden — normales Verhalten bleibt
+    }
+
+    // Nicht zur eigenen Definition springen wenn wir bereits dort sind
+    if (info.filePath == m_filePath && info.line == textCursor().blockNumber() + 1)
+    {
+        return;
+    }
+
+    emit navigateToRequested(info.filePath, info.line);
+}
+
 void CodeEditor::mousePressEvent(QMouseEvent *event)
 {
     // Zuerst prüfen ob ein Farbquadrat geklickt wurde

src/editor/CodeEditor.h

@@ -10,6 +10,7 @@ class Settings;
 class SyntaxHighlighter;
 class ColorIndicator;
 class SignatureHelper;
+class FunctionIndex;
 
 // ---------------------------------------------------------------------------
 // CodeEditor – Core editing widget.
@@ -48,14 +49,18 @@ public:
     QRectF     blockBoundingGeometryPublic(const QTextBlock &b) const { return blockBoundingGeometry(b); }
     QPointF    contentOffsetPublic() const      { return contentOffset(); }
 
+    void setFunctionIndex(FunctionIndex *index);
+
 signals:
     void fileSaved(const QString &filePath);
+    void navigateToRequested(const QString &filePath, int line);
 
 protected:
     void resizeEvent(QResizeEvent *event) override;
     void keyPressEvent(QKeyEvent *event) override;
     void paintEvent(QPaintEvent *event) override;
     void mousePressEvent(QMouseEvent *event) override;
+    void mouseDoubleClickEvent(QMouseEvent *event) override;
 
 private slots:
     void updateLineNumberAreaWidth(int newBlockCount);
@@ -72,5 +77,6 @@ private:
     SyntaxHighlighter *m_highlighter      = nullptr;
     ColorIndicator    *m_colorIndicator   = nullptr;
     SignatureHelper   *m_signatureHelper  = nullptr;
+    FunctionIndex     *m_functionIndex    = nullptr;
     QString            m_filePath;
 };

src/editor/DeadCodeAnalyzer.cpp

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

src/editor/DeadCodeAnalyzer.h

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

src/editor/DeadCodeDialog.cpp

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

src/editor/DeadCodeDialog.h

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

src/editor/EditorPanel.cpp

@@ -3,6 +3,9 @@
 #include "CodeEditor.h"
 #include "SearchPanel.h"
 #include "FileSearchPanel.h"
+#include "FunctionListDialog.h"
+#include "DeadCodeDialog.h"
+#include "FunctionIndex.h"
 
 #include <QFileInfo>
 #include <QFile>
@@ -32,6 +35,9 @@ void EditorPanel::setupUi()
 
     m_searchPanel = new SearchPanel(this);
     m_fileSearch  = new FileSearchPanel(this);
+    m_funcDialog  = new FunctionListDialog(window());
+    m_deadCode    = new DeadCodeDialog(window());
+    m_funcIndex   = new FunctionIndex(this);
 
     m_layout->addWidget(m_tabWidget, 1);
     m_layout->addWidget(m_searchPanel, 0);
@@ -45,6 +51,12 @@ void EditorPanel::setupUi()
 
     connect(m_fileSearch, &FileSearchPanel::fileLineRequested,
             this, &EditorPanel::goToLine);
+
+    connect(m_funcDialog, &FunctionListDialog::fileLineRequested,
+            this, &EditorPanel::goToLine);
+
+    connect(m_deadCode, &DeadCodeDialog::fileLineRequested,
+            this, &EditorPanel::goToLine);
 }
 
 // ---------------------------------------------------------------------------
@@ -79,6 +91,13 @@ void EditorPanel::openFile(const QString &filePath)
     m_tabWidget->setTabToolTip(index, filePath);
     m_openTabs.insert(filePath, tab);
 
+    // FunctionIndex dem Editor mitgeben für Doppelklick-Navigation
+    tab->editor()->setFunctionIndex(m_funcIndex);
+
+    // Doppelklick auf Funktion → zur Definition springen
+    connect(tab->editor(), &CodeEditor::navigateToRequested,
+            this, &EditorPanel::goToLine);
+
     // Änderungsindikator im Tab-Titel (● = ungespeichert)
     connect(tab->editor()->document(), &QTextDocument::modificationChanged,
             this, [this, tab](bool modified)
@@ -102,6 +121,13 @@ void EditorPanel::openFile(const QString &filePath)
             m_tabWidget->setTabToolTip(idx, savedPath);
         }
         emit currentFileSaved(savedPath);
+
+        // Index und Funktionsliste aktualisieren
+        m_funcIndex->refresh();
+        if (m_funcDialog->isVisible())
+        {
+            m_funcDialog->refresh();
+        }
     });
 }
 
@@ -145,9 +171,26 @@ void EditorPanel::showFileSearchPanel()
     m_fileSearch->activate();
 }
 
+void EditorPanel::showFunctionList()
+{
+    m_funcDialog->show();
+    m_funcDialog->raise();
+    m_funcDialog->activateWindow();
+}
+
+void EditorPanel::showDeadCode()
+{
+    m_deadCode->show();
+    m_deadCode->raise();
+    m_deadCode->activateWindow();
+}
+
 void EditorPanel::setSearchRoot(const QString &path)
 {
     m_fileSearch->setSearchRoot(path);
+    m_funcDialog->setProjectRoot(path);
+    m_deadCode->setProjectRoot(path);
+    m_funcIndex->setProjectRoot(path);
 }
 
 void EditorPanel::goToLine(const QString &filePath, int line)

src/editor/EditorPanel.h

@@ -10,6 +10,9 @@ class EditorTab;
 class Settings;
 class SearchPanel;
 class FileSearchPanel;
+class FunctionListDialog;
+class DeadCodeDialog;
+class FunctionIndex;
 
 // ---------------------------------------------------------------------------
 // EditorPanel – Rechtes Panel: Tab-Leiste + Editoren + Such/Ersetzen-Panel.
@@ -29,6 +32,8 @@ public slots:
     void setSearchRoot(const QString &path);
     void showSearchPanel();
     void showFileSearchPanel();
+    void showFunctionList();
+    void showDeadCode();
     void goToLine(const QString &filePath, int line);
 
     // Session
@@ -55,6 +60,9 @@ private:
     QTabWidget         *m_tabWidget   = nullptr;
     SearchPanel        *m_searchPanel = nullptr;
     FileSearchPanel    *m_fileSearch  = nullptr;
+    FunctionListDialog *m_funcDialog  = nullptr;
+    DeadCodeDialog     *m_deadCode    = nullptr;
+    FunctionIndex      *m_funcIndex   = nullptr;
 
     QHash<QString, EditorTab *> m_openTabs;
 };

src/editor/FunctionIndex.cpp

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

src/editor/FunctionIndex.h

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

src/editor/FunctionListDialog.cpp

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

src/editor/FunctionListDialog.h

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

src/editor/FunctionListPanel.cpp

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

src/editor/FunctionListPanel.h

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

src/editor/FunctionScanner.cpp

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

src/editor/FunctionScanner.h

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