paintarea.h Example File
tools/plugandpaint/paintarea.h
/****************************************************************************
**
** Copyright (C) 2005-2005 Trolltech AS. All rights reserved.
**
** This file is part of the documentation of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file. Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at sales@trolltech.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
#ifndef PAINTAREA_H
#define PAINTAREA_H
#include <QColor>
#include <QImage>
#include <QPainterPath>
#include <QWidget>
class BrushInterface;
class PaintArea : public QWidget
{
Q_OBJECT
public:
PaintArea(QWidget *parent = 0);
bool openImage(const QString &fileName);
bool saveImage(const QString &fileName, const char *fileFormat);
void setImage(const QImage &image);
void insertShape(const QPainterPath &path);
void setBrushColor(const QColor &color);
void setBrushWidth(int width);
void setBrush(BrushInterface *brushInterface, const QString &brush);
QImage image() const { return theImage; }
QColor brushColor() const { return color; }
int brushWidth() const { return thickness; }
QSize sizeHint() const;
protected:
void paintEvent(QPaintEvent *event);
void mousePressEvent(QMouseEvent *event);
void mouseMoveEvent(QMouseEvent *event);
void mouseReleaseEvent(QMouseEvent *event);
private:
void setupPainter(QPainter &painter);
QImage theImage;
QColor color;
int thickness;
BrushInterface *brushInterface;
QString brush;
QPoint lastPos;
QPainterPath pendingPath;
};
#endif