QCodeEditor.hpp

Go to the documentation of this file.

#pragma once
 
// Qt
#include <QTextEdit> // Required for inheritance
 
class QCompleter;
class QLineNumberArea;
class QSyntaxStyle;
class QStyleSyntaxHighlighter;
class QFramedTextAttribute;
 
class QCodeEditor : public QTextEdit
{
    Q_OBJECT
 
public:
    explicit QCodeEditor(QWidget* widget=nullptr);
 
    // Disable copying
    QCodeEditor(const QCodeEditor&) = delete;
    QCodeEditor& operator=(const QCodeEditor&) = delete;
 
    int getFirstVisibleBlock();
 
    void setHighlighter(QStyleSyntaxHighlighter* highlighter);
 
    void setSyntaxStyle(QSyntaxStyle* style);
 
    void setAutoParentheses(bool enabled);
 
    bool autoParentheses() const;
 
    void setTabReplace(bool enabled);
 
    bool tabReplace() const;
 
    void setTabReplaceSize(int val);
 
    int tabReplaceSize() const;
 
    void setAutoIndentation(bool enabled);
 
    bool autoIndentation() const;
 
    void setCompleter(QCompleter* completer);
 
    QCompleter* completer() const;
 
public Q_SLOTS:
 
    void insertCompletion(QString s);
 
    void updateLineNumberAreaWidth(int);
 
    void updateLineNumberArea(const QRect& rect);
 
    void updateExtraSelection();
 
    void updateStyle();
 
    void onSelectionChanged();
 
protected:
    void insertFromMimeData(const QMimeData* source) override;
 
    void paintEvent(QPaintEvent* e) override;
 
    void resizeEvent(QResizeEvent* e) override;
 
    void keyPressEvent(QKeyEvent* e) override;
 
    void focusInEvent(QFocusEvent *e) override;
 
private:
 
    void initDocumentLayoutHandlers();
 
    void initFont();
 
    void performConnections();
 
    void handleSelectionQuery(QTextCursor cursor);
 
    void updateLineGeometry();
 
    bool proceedCompleterBegin(QKeyEvent *e);
    void proceedCompleterEnd(QKeyEvent* e);
 
    QChar charUnderCursor(int offset = 0) const;
 
    QString wordUnderCursor() const;
 
    void highlightCurrentLine(QList<QTextEdit::ExtraSelection>& extraSelection);
 
    void highlightParenthesis(QList<QTextEdit::ExtraSelection>& extraSelection);
 
    int getIndentationSpaces();
 
    QStyleSyntaxHighlighter* m_highlighter;
    QSyntaxStyle* m_syntaxStyle;
    QLineNumberArea* m_lineNumberArea;
    QCompleter* m_completer;
 
    QFramedTextAttribute* m_framedAttribute;
 
    bool m_autoIndentation;
    bool m_autoParentheses;
    bool m_replaceTab;
    QString m_tabReplace;
};