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stickman.h Example File
animation/stickman/stickman.h

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 #ifndef STICKMAN_H
 #define STICKMAN_H

 #include <QGraphicsObject>

 static const int NodeCount = 16;
 static const int BoneCount = 24;

 class Node;

 class StickMan: public QGraphicsObject
 {
     Q_OBJECT
     Q_PROPERTY(QColor penColor WRITE setPenColor READ penColor)
     Q_PROPERTY(QColor fillColor WRITE setFillColor READ fillColor)
     Q_PROPERTY(bool isDead WRITE setIsDead READ isDead)
 public:
     StickMan();
     ~StickMan();

     virtual QRectF boundingRect() const;
     virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);

     int nodeCount() const;
     Node *node(int idx) const;

     void setDrawSticks(bool on);
     bool drawSticks() const { return m_sticks; }

     QColor penColor() const { return m_penColor; }
     void setPenColor(const QColor &color) { m_penColor = color; }

     QColor fillColor() const { return m_fillColor; }
     void setFillColor(const QColor &color) { m_fillColor = color; }

     bool isDead() const { return m_isDead; }
     void setIsDead(bool isDead) { m_isDead = isDead; }

 public slots:
     void stabilize();
     void childPositionChanged();

 protected:
     void timerEvent(QTimerEvent *e);

 private:

     QPointF posFor(int idx) const;

     Node *m_nodes[NodeCount];
     qreal m_perfectBoneLengths[BoneCount];

     uint m_sticks : 1;
     uint m_isDead : 1;
     uint m_reserved : 30;

     QPixmap m_pixmap;
     QColor m_penColor;
     QColor m_fillColor;
 };

 #endif // STICKMAN_H


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Qt 4.6.3