101 lines
3.0 KiB
C++
101 lines
3.0 KiB
C++
/****************************************************************************
|
|
**
|
|
** 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:
|
|
** * Redistributions of source code must retain the above copyright
|
|
** notice, this list of conditions and the following disclaimer.
|
|
** * Redistributions in binary form must reproduce the above copyright
|
|
** notice, this list of conditions and the following disclaimer in
|
|
** the documentation and/or other materials provided with the
|
|
** 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
|
|
** permission.
|
|
**
|
|
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
|
|
** $QT_END_LICENSE$
|
|
**
|
|
****************************************************************************/
|
|
|
|
#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
|