comparison panned.h @ 168:4bad3c5c053a

* Add "Show summary" feature
 * Add simplistic kinetic scrolling to history widget

 
 #include <QGraphicsView>
 
 class QWheelEvent;
 class QEvent;
+class QTimer;
 
 class Panned : public QGraphicsView
 {
     Q_OBJECT
 

     void slotEmulateWheelEvent(QWheelEvent *ev);
 
     void zoomIn();
     void zoomOut();
 
+private slots:
+    void dragTimerTimeout();
+
 protected:
     QRectF m_pannedRect;
+
+    QPoint m_lastDragPos;
+    QPoint m_lastOrigin;
+    QPointF m_velocity;
+    bool m_dragging;
+    int m_dragTimerMs;
+    QTimer *m_dragTimer;
+
+    virtual void mousePressEvent(QMouseEvent *);
+    virtual void mouseMoveEvent(QMouseEvent *);
+    virtual void mouseReleaseEvent(QMouseEvent *);
 
     virtual void paintEvent(QPaintEvent *);
     virtual void resizeEvent(QResizeEvent *);
     virtual void drawForeground(QPainter *, const QRectF &);
     virtual void wheelEvent(QWheelEvent *);