gridcellbase.h

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// GridCellBase.h: interface for the CGridCellBase class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_GRIDCELLBASE_H__768A7055_3D28_11D8_B617_A69FB0BE0671__INCLUDED_)
#define AFX_GRIDCELLBASE_H__768A7055_3D28_11D8_B617_A69FB0BE0671__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

// Cell states




#define GVIS_FIXED              0x0010
#define GVIS_FIXEDROW           0x0020
#define GVIS_FIXEDCOL           0x0040


class CGridCtrl;//超前引用，因为这时CGridCtrl类还没有生成，在这里告诉编译器CGridCtrl是一个类名字
                //否则，会出现CGridCtrl未定义错误。


class CGridCellBase : public CObject  
{
	//friend class CGridCtrl;
	DECLARE_DYNAMIC(CGridCellBase)
public:
	CGridCellBase();
	virtual ~CGridCellBase();

// Operators
public:
    virtual void operator=(const CGridCellBase& cell);

// Attributes
public:

	BOOL Draw(CDC* pDC,int nRow, int nCol, CRect rect,  BOOL bEraseBkgnd /*=TRUE*/);

    virtual void SetText(LPCTSTR /* szText */)              = 0 ;
    virtual void SetTextClr(COLORREF /* clr */)             = 0 ;
    virtual void SetBackClr(COLORREF /* clr */)             = 0 ;
    virtual void SetFont(const LOGFONT* /* plf */)          = 0 ;
    virtual void SetGrid(CGridCtrl* /* pGrid */)            = 0 ;
	virtual void SetState(DWORD nState)                     { m_nState = nState; }
    
    virtual LPCTSTR    GetText()       const                = 0 ;
    virtual COLORREF   GetTextClr()    const                = 0 ;
    virtual COLORREF   GetBackClr()    const                = 0 ;
    virtual LOGFONT  * GetFont()       const                = 0 ;
    virtual CFont    * GetFontObject() const                = 0 ;
    virtual CGridCtrl* GetGrid()       const                = 0 ;
	virtual DWORD      GetState()      const                { return m_nState;  }
    

    virtual CGridCellBase* GetDefaultCell() const;

    virtual BOOL IsDefaultFont()       const                = 0 ;
    virtual BOOL IsFixed()             const                { return (m_nState &GVIS_FIXED);    }
    virtual BOOL IsFixedCol()          const                { return (m_nState &GVIS_FIXEDCOL); }
    virtual BOOL IsFixedRow()          const                { return (m_nState &GVIS_FIXEDROW); }

protected:
    DWORD    m_nState;      // Cell state (selected/focus etc)    

};

#endif // !defined(AFX_GRIDCELLBASE_H__768A7055_3D28_11D8_B617_A69FB0BE0671__INCLUDED_)