temp update

Author: QuangNguyenMinh123

src/SeerEditorWidgetSource.h

@@ -140,16 +140,20 @@ class SeerEditorWidgetSourceArea : public SeerPlainTextEdit {
         void                                        showAlternateBar                    (bool flag);
         void                                        showReloadBar                       (bool flag);
         void                                        highlighterSettingsChanged          ();
+        void                                        seekIdentifier                      (const QString& identifier);
 
     public slots:
         void                                        handleText                          (const QString& text);
         void                                        handleHighlighterSettingsChanged    ();
         void                                        handleWatchFileModified             (const QString& path);
         void                                        handleBreakpointToolTip             (QPoint pos, const QString& text);
+        void                                        handleSeekIdentifierF12             ();
 
     protected:
         void                                        resizeEvent                         (QResizeEvent* event);
         void                                        contextMenuEvent                    (QContextMenuEvent* event);
+        void                                        mouseMoveEvent                      (QMouseEvent* event) override;
+        void                                        mousePressEvent                     (QMouseEvent* event) override;
         void                                        mouseReleaseEvent                   (QMouseEvent* event);
         bool                                        event                               (QEvent* event);
         void                                        showExpressionTooltip               ();
@@ -163,6 +167,11 @@ class SeerEditorWidgetSourceArea : public SeerPlainTextEdit {
         void                                        updateBreakPointArea                (const QRect& rect, int dy);
 
     private:
+        void                                        updateCursor                        (const QPoint &pos);
+        bool                                        isOverWord                          (const QPoint &pos);
+        QString                                     wordUnderCursor                     (const QPoint &pos) const;
+        bool                                        isValidIdentifier                   (const QString& text);
+
         QString                                     _fullname;
         QString                                     _file;
         QString                                     _alternateDirectory;
@@ -194,6 +203,9 @@ class SeerEditorWidgetSourceArea : public SeerPlainTextEdit {
 
         int                                         _sourceTabSize;
         QString                                     _externalEditorCommand;
+
+        bool                                        _ctrlHeld = false;
+        QString                                     _wordUnderCursor;
 };
 
 class SeerEditorWidgetSourceLineNumberArea : public QWidget {

src/SeerEditorWidgetSourceAreas.cpp

@@ -2025,3 +2025,100 @@ void SeerEditorWidgetSourceBreakPointArea::mouseReleaseEvent (QMouseEvent* event
     QWidget::mouseReleaseEvent(event);
 }
 
+/***********************************************************************************************************************
+ * Go to definition feature                                                                                            *
+ **********************************************************************************************************************/
+bool SeerEditorWidgetSourceArea::isOverWord(const QPoint &pos)
+{
+    QTextCursor cursor = cursorForPosition(pos);
+    cursor.select(QTextCursor::WordUnderCursor);
+    return !cursor.selectedText().isEmpty();
+}
+
+QString SeerEditorWidgetSourceArea::wordUnderCursor(const QPoint &pos) const
+{
+    QTextCursor cursor = cursorForPosition(pos);
+    cursor.select(QTextCursor::WordUnderCursor);
+    return cursor.selectedText();
+}
+
+void SeerEditorWidgetSourceArea::updateCursor(const QPoint &pos)
+{
+    _ctrlHeld = QApplication::keyboardModifiers() & Qt::ControlModifier;
+    if (_ctrlHeld && isOverWord(pos)) {
+        QApplication::setOverrideCursor(Qt::PointingHandCursor);
+        _wordUnderCursor = wordUnderCursor(pos);
+    } else {
+        QApplication::restoreOverrideCursor();
+    }
+}
+
+void SeerEditorWidgetSourceArea::mouseMoveEvent(QMouseEvent *event) 
+{
+    updateCursor(event->pos());
+    QPlainTextEdit::mouseMoveEvent(event);
+}
+
+// Check text and decide if that text is valid identifier (function, variable, type name)
+bool SeerEditorWidgetSourceArea::isValidIdentifier(const QString& text) 
+{
+    static const QSet<QString> keywords = {
+        // Add your C and C++ keywords as QString literals here
+        "auto", "break", "case", "char", "const", "continue", "default", "do", "double",
+        "else", "enum", "extern", "float", "for", "goto", "if", "inline", "int", "long",
+        "register", "restrict", "return", "short", "signed", "sizeof", "static", "struct",
+        "switch", "typedef", "union", "unsigned", "void", "volatile", "while", "_Alignas",
+        "_Alignof", "_Atomic", "_Bool", "_Complex", "_Generic", "_Imaginary", "_Noreturn",
+        "_Static_assert", "_Thread_local",
+
+        "alignas", "alignof", "and", "and_eq", "asm", "bitand", "bitor", "bool", "catch",
+        "char16_t", "char32_t", "class", "compl", "const_cast", "constexpr", "decltype",
+        "delete", "dynamic_cast", "explicit", "export", "false", "friend", "mutable", "namespace",
+        "new", "noexcept", "not", "not_eq", "nullptr", "operator", "or", "or_eq", "private",
+        "protected", "public", "reinterpret_cast", "static_assert", "static_cast", "template",
+        "this", "thread_local", "throw", "true", "try", "typeid", "typename", "using",
+        "virtual", "wchar_t", "xor", "xor_eq"
+    };
+
+    if (text.isEmpty())
+        return false;
+
+    if (keywords.contains(text))
+        return false;
+
+    QChar firstChar = text[0];
+    if (!firstChar.isLetter() && firstChar != '_')
+        return false;
+
+    for (int i = 1; i < text.size(); ++i) {
+        QChar ch = text[i];
+        if (!ch.isLetterOrNumber() && ch != '_')
+            return false;
+    }
+
+    return true;
+}
+
+// When Ctrl is hold and left mouse is clicked, and cursor is pointing at a word, try to look for that word 
+void SeerEditorWidgetSourceArea::mousePressEvent(QMouseEvent *event)
+{
+    if (event->button() == Qt::LeftButton && _wordUnderCursor != "" && _ctrlHeld) {
+        if (isValidIdentifier(_wordUnderCursor))
+        {
+            emit seekIdentifier(_wordUnderCursor);
+        }
+    }
+    QPlainTextEdit::mousePressEvent(event);
+}
+
+// When F12 is pressed, try to look for the word under cursor, if it's a valid identifier then emit seekIdentifier signal
+void SeerEditorWidgetSourceArea::handleSeekIdentifierF12()
+{
+    QTextCursor cursor = textCursor();
+    cursor.select(QTextCursor::WordUnderCursor);
+    QString wordUnderCursor = cursor.selectedText();
+    if (isValidIdentifier(wordUnderCursor))
+    {
+        emit seekIdentifier(wordUnderCursor);
+    }
+}