42 lines
935 B
C++
42 lines
935 B
C++
#ifndef BASEVIEW_H
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#define BASEVIEW_H
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#include <QGraphicsView>
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class BaseView : public QGraphicsView
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{
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Q_OBJECT
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public:
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explicit BaseView(QWidget *parent = 0);
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virtual ~BaseView();
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virtual void initialize();
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//视图操作-外部调用
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void zoomIn();
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void zoomOut();
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void zoomFit();
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protected:
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virtual void mousePressEvent(QMouseEvent*) override;
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virtual void mouseMoveEvent(QMouseEvent*) override;
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virtual void mouseReleaseEvent(QMouseEvent*) override;
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virtual void wheelEvent(QWheelEvent*) override;
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protected:
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//视图操作相关
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void zoom(const QPointF&, double);
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bool zoomLimit(double&);
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double getScaleFactor();
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void translate(const QPointF&);
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signals:
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void onScaleChanged(double d);
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protected:
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bool m_bMousePress;
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double m_dScale;
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QPointF m_ptLatstMouse_view; //鼠标最后按下在view中的位置
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int m_nLevel;
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};
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#endif
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