hlp:桂林国际齿轮泵代码

scene/myview.h

@@ -0,0 +1,28 @@
+#ifndef MYVIEW_H
+#define MYVIEW_H
+
+#include <QGraphicsView>
+
+class MyView : public QGraphicsView
+{
+    Q_OBJECT
+public:
+    explicit MyView(QWidget *parent = 0);
+
+    void ZoomOut(void);
+    void ZoomIn(void);
+private:
+    char zoomRatio;
+
+signals:
+    
+public slots:
+
+protected :
+//   void wheelEvent(QWheelEvent *event);
+//   void mousePressEvent(QMouseEvent *event);
+    void keyPressEvent(QKeyEvent *event);
+    
+};
+
+#endif // MYVIEW_H