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38 lines
993 B
C++
38 lines
993 B
C++
#pragma once
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#include "HTrackerCommon.h"
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#include "HTrackerHandleCalculator.h"
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//计算HTracker的变换矩阵
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class HTrackerTransform
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{
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public:
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HTrackerTransform();
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void Init(int handle, const CRect & boundRect, CPoint mousePt);
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void Draging(CPoint mousePt);
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void EndDrag();
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Gdiplus::Matrix * GetMatrix();
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//设置变换的类型
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void SetKind(HTRACKER_TRANSFORM_KIND kind);
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protected:
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void SetFixedPoints();
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void Scale(CPoint & point);
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void Move(CPoint & point);
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bool IsCanMove(const CPoint& nPrevPoint, const CPoint& nCurPoint);
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void Rotate(CPoint & point);
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void Shear(CPoint & point);
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private:
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bool m_bDrag;
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int m_handle;
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CPoint m_StartPoint; //开始拖拽时，鼠标的坐标。
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CRect m_boundRect; //tracker的外包矩形
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CPoint m_FixedSrc;
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CPoint m_FixedDest;
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bool m_bCanMoved;
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int m_nAllowMovePixel;
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Gdiplus::Matrix m_Transform;
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Gdiplus::REAL m_StartPhi;
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HTrackerHandleCalculator m_calculator;
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HTRACKER_TRANSFORM_KIND m_kind;
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};
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