| /**************************************************************************** |
| ** |
| ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). |
| ** All rights reserved. |
| ** Contact: Nokia Corporation (qt-info@nokia.com) |
| ** |
| ** This file is part of the examples of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:BSD$ |
| ** You may use this file under the terms of the BSD license as follows: |
| ** |
| ** "Redistribution and use in source and binary forms, with or without |
| ** modification, are permitted provided that the following conditions are |
| ** met: |
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| ** * Redistributions in binary form must reproduce the above copyright |
| ** notice, this list of conditions and the following disclaimer in |
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| ** distribution. |
| ** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor |
| ** the names of its contributors may be used to endorse or promote |
| ** products derived from this software without specific prior written |
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| ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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| ****************************************************************************/ |
| |
| #ifndef CODEEDITOR_H |
| #define CODEEDITOR_H |
| |
| #include <QObject> |
| #include <QPlainTextEdit> |
| |
| class QPaintEvent; |
| class QResizeEvent; |
| class QSize; |
| class QWidget; |
| |
| class LineNumberArea; |
| |
| class CodeEditor : public QPlainTextEdit |
| { |
| Q_OBJECT |
| |
| public: |
| CodeEditor(QWidget* parent = 0); |
| |
| void lineNumberAreaPaintEvent(QPaintEvent* event); |
| int lineNumberAreaWidth(); |
| |
| protected: |
| void resizeEvent(QResizeEvent* event); |
| |
| private slots: |
| void updateLineNumberAreaWidth(int newBlockCount); |
| void highlightCurrentLine(); |
| void updateLineNumberArea(const QRect&, int); |
| |
| private: |
| QWidget* lineNumberArea; |
| }; |
| |
| class LineNumberArea : public QWidget |
| { |
| public: |
| LineNumberArea(CodeEditor* editor) |
| : QWidget(editor) |
| { |
| codeEditor = editor; |
| } |
| |
| QSize sizeHint() const |
| { |
| return QSize(codeEditor->lineNumberAreaWidth(), 0); |
| } |
| |
| protected: |
| void paintEvent(QPaintEvent* event) |
| { |
| codeEditor->lineNumberAreaPaintEvent(event); |
| } |
| |
| private: |
| CodeEditor* codeEditor; |
| }; |
| |
| #endif |