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#pragma once
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#include <memory>
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#include "HandleDrawer.h"
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#include "itemcurve.h"
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namespace NItem {
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#define DRAG_NODE_DEFAULT 0 // 直接移动当前节点
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#define DRAG_NODE_LINE 1 // 线性移动节点
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#define DRAG_NODE_COS 2 // 余弦移动节点
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#define DRAG_NODE_SPLINE 3 // 三次样条移动节点
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#define DRAG_LINE_COLOR RGB(0, 153, 255)
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// #define TRACKER_SOLID 1
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// #define TRACKER_RECT 2
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// #define TRACKER_CIRCLE 4
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// #define TRACKER_NO_EDIT TRACKER_SOLID | TRACKER_CIRCLE
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class CurveEditorBase : public CItemCurve {
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public:
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CurveEditorBase(CSigmaDoc *pDoc);
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virtual ~CurveEditorBase(void);
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void OnDraw(CXyDC *pDC) override final;
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void OnLButtonDblClk(UINT nFlags, CPoint point) override final;
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void OnLButtonDown(CDC *pDC, UINT nFlags, CPoint point,
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int vk) override final;
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int OnMouseMove(CDC *pDC, UINT nFlags, CPoint point) override final;
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void OnLButtonUp(CDC *pDC, UINT nFlags, CPoint point, int vk) override final;
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BOOL OnSetCursor(CWnd *pWnd, UINT nHitTest, UINT message) override final;
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BOOL OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) override final;
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BOOL OnKeyUp(UINT nChar, UINT nRepCnt, UINT nFlags) override final;
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int GetSubMenu() override final;
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void SetPos(POSITION pos) override final;
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void Clear(void);
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void Draw(CDC *pDC);
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void DrawAssistant(CDC *pDC, int mouseX, int mouseY) override;
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int GetNumberOfNode();
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void EreaseHandles(CDC *pDC);
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void EndEdit(void);
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void CancelAll(void);
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BOOL IsCanCancelAll(void);
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// 控制点操作
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int HitTestHandle(CPoint point);
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void DeleteHandle(int nIndex);
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int AddHandle(CPoint point);
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BOOL IsCanAddHandle(CPoint point, double *pl0 = nullptr);
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// 虚函数：样条模式需重写为返回冗余曲线
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virtual CCurveEx *GetControlCurve(void);
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void GetXY(CCurveEx *pValue, int nIndex, dfPoint &point);
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void AttachProcess(CPointList &oldPoints, CPointList &newPoints);
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void DrawMoveLine(void);
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void GetMarkCurve(void);
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CPoint2D GetCDown() const;
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CPoint2D GetCLast() const;
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protected:
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// 默认：绘制两条线段
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// 线性/余弦/样条：绘制整条受影响的曲线
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virtual void OnDrawDragPreview() = 0;
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virtual void OnCalculateDragEffect(CPointList *pList) = 0;
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// 在SetPos后调用，样条模式用于计算m_pMarkCurve
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virtual void OnModeInitialize() {}
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// 在OnMouseMove中调用
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virtual void OnDragMove(int nIndex, CPoint2D pt) {}
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// 获取当前偏移模式（Linear/Cosine模式使用）
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int GetOffsetMode(void);
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// 虚函数：样条模式需重写
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virtual int AddHandle(double l0);
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// 辅助方法：向指定曲线添加点
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int AddHandle(CCurveEx *pValue, dfPoint add);
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// 鼠标位置（世界坐标）
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CPoint2D c_down, c_last;
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// 拖动标志
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bool m_bLButtonDownWhenMouseMove;
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// 备份原始曲线（用于撤销）
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std::unique_ptr<COne> m_pBakOne;
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// 控制点绘制器
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std::unique_ptr<HandleDrawer> m_handleDrawer;
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// 鼠标按下点（屏幕坐标）
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CPoint m_nLButtonDownPoint;
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// 新点列表（用于预览）
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CPointList NewPointList;
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// 临时点列表
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CPointList PointList;
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// 控制点绘制模式
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DWORD m_nHandleDrawMode;
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int m_nModeX;
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int m_nModeY; // 绘制模式
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private:
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void DrawHandle(CXyDC *pDC, CCurveEx *pCurve);
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void DrawHandlesByCDC(CDC *pDC, CCurveEx *pCurve);
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void DrawSelectHandle(int nHandle);
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CRect GetRangeWidthIndex(int nIndex);
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CRect GetFirstNodeHandleRectFocus(CPoint point);
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void SetDrawMode(int nModeX, int nModeY);
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int HitTestHandle(CCurveEx *pValue, CPoint point);
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bool IsDragging(int nFlags) const;
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int HandleMouseDrag(CXyDC *pDC, CPoint point);
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int HandleMouseHover(CDC *dc, CPoint point);
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};
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}; // namespace NItem
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