|  | Home · All Classes · Main Classes · Grouped Classes · Modules · Functions |

# mandelbrotwidget.h Example File
threads/mandelbrot/mandelbrotwidget.h

     /****************************************************************************
     **
     ** Copyright (C) 2004-2007 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 MANDELBROTWIDGET_H
     #define MANDELBROTWIDGET_H

     #include <QPixmap>
     #include <QWidget>

     #include "renderthread.h"

     class MandelbrotWidget : public QWidget
     {
         Q_OBJECT

     public:
         MandelbrotWidget(QWidget *parent = 0);

     protected:
         void paintEvent(QPaintEvent *event);
         void resizeEvent(QResizeEvent *event);
         void keyPressEvent(QKeyEvent *event);
         void wheelEvent(QWheelEvent *event);
         void mousePressEvent(QMouseEvent *event);
         void mouseMoveEvent(QMouseEvent *event);
         void mouseReleaseEvent(QMouseEvent *event);

     private slots:
         void updatePixmap(const QImage &image, double scaleFactor);

     private:
         void zoom(double zoomFactor);
         void scroll(int deltaX, int deltaY);

         RenderThread thread;
         QPixmap pixmap;
         QPoint pixmapOffset;
         QPoint lastDragPos;
         double centerX;
         double centerY;
         double pixmapScale;
         double curScale;
     };

     #endif