pathdeform.h Example File
demos/deform/pathdeform.h
/****************************************************************************
**
** Copyright (C) 2005-2005 Trolltech AS. All rights reserved.
**
** This file is part of the documentation of the Qt Toolkit.
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#ifndef PATHDEFORM_H
#define PATHDEFORM_H
#include "arthurwidgets.h"
#include <QPainterPath>
#include <QBasicTimer>
#include <QDateTime>
class PathDeformRenderer : public ArthurFrame
{
Q_OBJECT
Q_PROPERTY(bool animated READ animated WRITE setAnimated)
Q_PROPERTY(int radius READ radius WRITE setRadius)
Q_PROPERTY(int fontSize READ fontSize WRITE setFontSize)
Q_PROPERTY(int intensity READ intensity WRITE setIntensity)
Q_PROPERTY(QString text READ text WRITE setText)
public:
PathDeformRenderer(QWidget *widget);
void paint(QPainter *painter);
void mousePressEvent(QMouseEvent *e);
void mouseReleaseEvent(QMouseEvent *e);
void mouseMoveEvent(QMouseEvent *e);
void timerEvent(QTimerEvent *e);
QSize sizeHint() const { return QSize(600, 500); }
bool animated() const { return m_animated; }
int radius() const { return m_radius; }
int fontSize() const { return m_fontSize; }
int intensity() const { return m_intensity; }
QString text() const { return m_text; }
public slots:
void setRadius(int radius);
void setFontSize(int fontSize) { m_fontSize = fontSize; setText(m_text); }
void setText(const QString &text);
void setIntensity(int intensity);
void setAnimated(bool animated);
// signals:
// void frameRate(double fps);
private:
void generateLensPixmap();
QPainterPath lensDeform(const QPainterPath &source, const QPointF &offset);
QBasicTimer m_repaintTimer;
// QBasicTimer m_fpsTimer;
// int m_fpsCounter;
QTime m_repaintTracker;
QVector<QPainterPath> m_paths;
QVector<QPointF> m_advances;
QRectF m_pathBounds;
QString m_text;
QPixmap m_lens_pixmap;
QImage m_lens_image;
int m_fontSize;
bool m_animated;
double m_intensity;
double m_radius;
QPointF m_pos;
QPointF m_offset;
QPointF m_direction;
};
class PathDeformWidget : public QWidget
{
public:
PathDeformWidget(QWidget *parent);
private:
PathDeformRenderer *m_renderer;
};
#endif // PATHDEFORM_H