nmWATI/Include/iPlot/iPlotBase/Tools/ZxZoomTool.h

#pragma once

#include <ZxSimpleTool.h>

class ZxRenderItem;

/// 区域缩放和滚轮缩放
class I_PLOTBASE_EXPORT ZxZoomTool : public ZxSimpleTool
{
    Q_OBJECT

public:

    ZxZoomTool();
    ZxZoomTool(const ZxZoomTool& c);

protected:

    virtual bool onLeftDown(const QPointF& pt);
    virtual bool onLeftUp(const QPointF& pt);
    virtual bool onMouseMove(const QPointF& pt);
    virtual bool onMouseWheel(const QPointF& pt, int delta);
    virtual void onPaint(QPainter* painter, const ZxPaintParam& param);

protected:

    bool m_bTracking;
    QRectF m_rtTracker;
};