diff options
Diffstat (limited to 'tests/manual/textrendering/codeeditor/codeeditor.h')
-rw-r--r-- | tests/manual/textrendering/codeeditor/codeeditor.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/tests/manual/textrendering/codeeditor/codeeditor.h b/tests/manual/textrendering/codeeditor/codeeditor.h new file mode 100644 index 0000000000..583bf3b4a0 --- /dev/null +++ b/tests/manual/textrendering/codeeditor/codeeditor.h @@ -0,0 +1,68 @@ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only + +#ifndef CODEEDITOR_H +#define CODEEDITOR_H + +#include <QPlainTextEdit> + +QT_BEGIN_NAMESPACE +class QPaintEvent; +class QResizeEvent; +class QSize; +class QWidget; +QT_END_NAMESPACE + +class LineNumberArea; + +//![codeeditordefinition] + +class CodeEditor : public QPlainTextEdit +{ + Q_OBJECT + +public: + CodeEditor(QWidget *parent = nullptr); + + void lineNumberAreaPaintEvent(QPaintEvent *event); + int lineNumberAreaWidth(); + +protected: + void resizeEvent(QResizeEvent *event) override; + +private slots: + void updateLineNumberAreaWidth(int newBlockCount); + void highlightCurrentLine(); + void updateLineNumberArea(const QRect &rect, int dy); + +private: + QWidget *lineNumberArea; +}; + +//![codeeditordefinition] +//![extraarea] + +class LineNumberArea : public QWidget +{ +public: + LineNumberArea(CodeEditor *editor) : QWidget(editor), codeEditor(editor) + {} + + QSize sizeHint() const override + { + return QSize(codeEditor->lineNumberAreaWidth(), 0); + } + +protected: + void paintEvent(QPaintEvent *event) override + { + codeEditor->lineNumberAreaPaintEvent(event); + } + +private: + CodeEditor *codeEditor; +}; + +//![extraarea] + +#endif |