00001 /**************************************************************************** 00002 ** 00003 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). 00004 ** Contact: Nokia Corporation (qt-info@nokia.com) 00005 ** 00006 ** This file is part of the examples of the Qt Toolkit. 00007 ** 00008 ** $QT_BEGIN_LICENSE:LGPL$ 00009 ** Commercial Usage 00010 ** Licensees holding valid Qt Commercial licenses may use this file in 00011 ** accordance with the Qt Commercial License Agreement provided with the 00012 ** Software or, alternatively, in accordance with the terms contained in 00013 ** a written agreement between you and Nokia. 00014 ** 00015 ** GNU Lesser General Public License Usage 00016 ** Alternatively, this file may be used under the terms of the GNU Lesser 00017 ** General Public License version 2.1 as published by the Free Software 00018 ** Foundation and appearing in the file LICENSE.LGPL included in the 00019 ** packaging of this file. Please review the following information to 00020 ** ensure the GNU Lesser General Public License version 2.1 requirements 00021 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. 00022 ** 00023 ** In addition, as a special exception, Nokia gives you certain 00024 ** additional rights. These rights are described in the Nokia Qt LGPL 00025 ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this 00026 ** package. 00027 ** 00028 ** GNU General Public License Usage 00029 ** Alternatively, this file may be used under the terms of the GNU 00030 ** General Public License version 3.0 as published by the Free Software 00031 ** Foundation and appearing in the file LICENSE.GPL included in the 00032 ** packaging of this file. Please review the following information to 00033 ** ensure the GNU General Public License version 3.0 requirements will be 00034 ** met: http://www.gnu.org/copyleft/gpl.html. 00035 ** 00036 ** If you are unsure which license is appropriate for your use, please 00037 ** contact the sales department at http://www.qtsoftware.com/contact. 00038 ** $QT_END_LICENSE$ 00039 ** 00040 ****************************************************************************/ 00041 00042 #ifndef MANDELBROTWIDGET_H 00043 #define MANDELBROTWIDGET_H 00044 00045 #include <QPixmap> 00046 #include <QWidget> 00047 00048 #include "renderthread.h" 00049 00051 class MandelbrotWidget : public QWidget 00052 { 00053 Q_OBJECT 00054 00055 public: 00056 MandelbrotWidget(QWidget *parent = 0); 00057 00058 protected: 00059 void paintEvent(QPaintEvent *event); 00060 void resizeEvent(QResizeEvent *event); 00061 void keyPressEvent(QKeyEvent *event); 00062 void wheelEvent(QWheelEvent *event); 00063 void mousePressEvent(QMouseEvent *event); 00064 void mouseMoveEvent(QMouseEvent *event); 00065 void mouseReleaseEvent(QMouseEvent *event); 00066 00067 private slots: 00068 void updatePixmap(const QImage &image, double scaleFactor); 00069 00070 private: 00071 void zoom(double zoomFactor); 00072 void scroll(int deltaX, int deltaY); 00073 00074 RenderThread thread; 00075 QPixmap pixmap; 00076 QPoint pixmapOffset; 00077 QPoint lastDragPos; 00078 double centerX; 00079 double centerY; 00080 double pixmapScale; 00081 double curScale; 00082 }; 00084 00085 #endif