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#ifndef _mbrot_h_
#define _mbrot_h_
class Mbrot : public QDeclarativeItem {
Q_OBJECT
Q_PROPERTY(QPoin tF centre READ centre WRITE setCentre)
Q_PROPERTY(qreal radius READ radius WRITE setRadius)
Q_PROPERTY(QList <QVariant> colors READ colors WRITE setColors)
Q_PROPERTY(bool downsize READ downsize WRITE setDownsize)
public:
Mbrot();
~Mbrot();
QPointF centre() const {return _centre;}
void setCentre(const QPointF& p) {_centre=p;recal culate();}
qreal radius() const {return _radius;}
void setRadius(qreal r) {_radius=r;recal culate();}
QList<QVariant> colors() const {return _colors;}
void setColors(const QList<QVariant>& c) {_colors=c;recal culate();}
bool downsize() const {return _downsize;}
void setDownsize(bool d) {_downsize=d;if (!_downsize) recalculate();}
Q_INVOKABLE void moveCentre(const QPointF&,const QPointF&);
Q_INVOKABLE QPointF positionOfPixel( int,int) const;
void paint(QPainter* painter,const QStyleOptionGrap hicsItem*,QWidge t*);
protected:
void geometryChanged( const QRectF&,const QRectF&);
private:
QImage _image;
QPointF _centre;
qreal _radius;
bool _downsize;
QList<QVariant> _colors;
void recalculate();
};
#endif
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setFlag(QGraphicsI tem::ItemHasNoCont ents,false);
}
Mbrot::~Mbrot() {}
void Mbrot::moveCentre( const QPointF& a,const QPointF& b) {
_centre+=(b-a);
recalculate();
}
QPointF Mbrot::positionOfP ixel(int x,int y) const {
const double s=_radius/(0.5*std ::min(width(),heig ht()));
return QPointF(
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