/******************************************************************************** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.**** This file is part of the example classes 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 SCRIBBLEAREA_H#define SCRIBBLEAREA_H#include <QColor>#include <QImage>#include <QPoint>#include <QWidget>class ScribbleArea : public QWidget{    Q_OBJECTpublic:    ScribbleArea(QWidget *parent = 0);    bool openImage(const QString &fileName);    bool saveImage(const QString &fileName, const char *fileFormat);    void setPenColor(const QColor &newColor);    void setPenWidth(int newWidth);    bool isModified() const { return modified; }    QColor penColor() const { return myPenColor; }    int penWidth() const { return myPenWidth; }public slots:    void clearImage();    void print();protected:    void mousePressEvent(QMouseEvent *event);    void mouseMoveEvent(QMouseEvent *event);    void mouseReleaseEvent(QMouseEvent *event);    void paintEvent(QPaintEvent *event);    void resizeEvent(QResizeEvent *event);private:    void drawLineTo(const QPoint &endPoint);    void resizeImage(QImage *image, const QSize &newSize);    bool modified;    bool scribbling;    int myPenWidth;    QColor myPenColor;    QImage image;    QPoint lastPoint;};#endif