//////////////////////////////////////////////////////////////////////////////
//文件: CItem类扩展
//主要功能: 
//		操作各类元素或完成一定的功能
//
//程序编写:		2006-12-07
//
//
/////////////////////////////////////////////////////////////////////////////

#pragma once
#include "item.h"

namespace NItem
{

#define TRACKER_SOLID			1
#define TRACKER_RECT			2
#define TRACKER_CIRCLE			4
#define TRACKER_NO_EDIT			TRACKER_SOLID | TRACKER_CIRCLE

class CItemTracker :
	public CItem
{
public:
	enum Handle
	{
		HandleTopLeft = 0,
		HandleTop = 1,
		HandleTopRight = 2,
		HandleRight = 3,
		HandleBottomRight = 4,
		HandleBottom = 5,
		HandleBottomLeft = 6,
		HandleLeft = 7,
		HandleCenter = 8, 
		HandleBody = 9,
		HandleNothing = -1
	};

	CItemTracker(void);
	CItemTracker(CSigmaDoc * ppDoc);
	virtual ~CItemTracker(void);

	COLORREF m_colorMark;			// color of Marking Rectangle. Default: light gray.
	COLORREF m_colorHandles;		// color of handles on corners and edges. Default: black.
	COLORREF m_colorHandlesEnableBrush;
	COLORREF m_colorHandlesDisableBursh;
	COLORREF m_colorCenter;			// color of center. Default: black.
	COLORREF m_colorTrack;			// color of Tracking Rectangle. Default: black.

	UINT m_HandleSize;
	UINT m_InnerMargin;
	UINT m_OuterMargin;
	CRect m_rect;
	CPoint m_CenterPoint;
	DWORD m_nDrawMode;
	int m_HandleSizeFocus;

	void SetRect(const CRect rect);
	CRect GetTrueRect();
	int HitTest(CPoint point);

	CPoint GetHandlePoint(int iHandle);
	CSize GetHandleSize(void);
	CRect GetHandleRect(int iHandle);
	CRect GetHandleRect(CPoint point);
	CRect GetHandleRect(long x,long y);
	CRect GetHandleRectFocus(CPoint point);
	CRect GetHandleRectFocus(long x,long y);
	int GetHandleSizeFocus(void);

	BOOL IsCanNotEdit(void);
	DWORD SetDrawMode(DWORD nDrawMode);
	DWORD GetDrawMode(void);

	void DrawTracker(CDC* pDC);
	void DrawHandle(CDC* pDC, DWORD nDrawMode);
	void DrawHandle(CDC* pDC, CRect& rect, DWORD nDrawMode);
	void DrawCenter(CDC * pDC, POINT center, bool bTrack, bool bCenterMove);
	void DrawMark(CDC* pDC, CRect rect, BOOL bIsDot);
	void Initial(void);
};

};