抽离场景打开逻辑、添加编辑界面的左右拖动功能

scene/myview.h

@@ -14,15 +14,21 @@ public:
     //char getzoomRatio(){return zoomRatio;}
 private:
     char zoomRatio;
+    bool m_isPanning = false;
+    bool m_isPressing = false;
+    bool m_pressOnItem = false;
+    QPoint m_lastPanPoint;
+    static constexpr int PanStartDistance = 8;
 
 signals:
     
 public slots:
 
 protected :
-//   void wheelEvent(QWheelEvent *event);
-//   void mousePressEvent(QMouseEvent *event);
-    void keyPressEvent(QKeyEvent *event);
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseMoveEvent(QMouseEvent *event) override;
+    void mouseReleaseEvent(QMouseEvent *event) override;
+    void keyPressEvent(QKeyEvent *event) override;
     
 };