stickman.h Example File

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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();

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

      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) override;

  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