1 #ifndef DRAWMAPSCENE_H

     2 #define DRAWMAPSCENE_H

     3 

     4 #include <QGraphicsScene>

     5 #include <QPainterPath>

     6 

     7 class QGraphicsPathItem;

     8 

     9 typedef QList<QList<QPoint> > Paths;

    10 

    11 class DrawMapScene : public QGraphicsScene

    12 {

    13 Q_OBJECT

    14 public:

    15     explicit DrawMapScene(QObject *parent = 0);

    16 

    17     QByteArray encode();

    18     void decode(QByteArray data);

    19 

    20 signals:

    21     void pathChanged();

    22 

    23 public slots:

    24     void undo();

    25     void simplifyLast();

    26 

    27 private:

    28     QPen m_pen;

    29     QBrush m_brush;

    30     QGraphicsPathItem  * m_currPath;

    31     Paths paths;

    32 

    33     virtual void mouseMoveEvent(QGraphicsSceneMouseEvent * mouseEvent);

    34     virtual void mousePressEvent(QGraphicsSceneMouseEvent * mouseEvent);

    35     virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent * mouseEvent);

    36 

    37     QPainterPath pointsToPath(const QList<QPoint> points);

    38 };

    39 

    40 #endif // DRAWMAPSCENE_H