mandelbrotwidget.h Example File
threads/mandelbrot/mandelbrotwidget.h
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** Copyright (C) 2004-2005 Trolltech AS. All rights reserved.
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** This file is part of the documentation of the Qt Toolkit.
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#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