bitmapcachekey.h

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// $Id: bitmapcachekey.h 751 2006-03-31 15:43:49Z alex $
// BitmapCacheKey.h: interface for the CBitmapCacheKey class.
//
/* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE
================================XARAHEADERSTART===========================
 
               Xara LX, a vector drawing and manipulation program.
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 */

#if !defined(AFX_BITMAPCACHEKEY_H__FEB76A5F_93CC_4875_B3EF_B7394B123ACD__INCLUDED_)
#define AFX_BITMAPCACHEKEY_H__FEB76A5F_93CC_4875_B3EF_B7394B123ACD__INCLUDED_

class CBitmapCacheKey  
{
    friend class CBitmapCache;

public:
    CBitmapCacheKey();
    CBitmapCacheKey(LPVOID pNewOwner, double dNewPixelWidth, UINT32 nNewOption = 0);
    CBitmapCacheKey(const CBitmapCacheKey& key);
    virtual ~CBitmapCacheKey();

// Methods
public:
    BOOL IsValid() const;
    UINT32 Hash() const;
    void SetOwner(LPVOID pNewOwner) {pOwner = pNewOwner;}
    double GetPixelWidth() const {return dPixelWidth;}

// Operators
    bool operator==(const CBitmapCacheKey& key) const;

private:
    LPVOID      pOwner;             // Pointer to owner object
    double      dPixelWidth;        // Resolution owner is looking for
    UINT32      nOption;            // Option owner is looking for (can store/retrieve several bitmaps at same resolution with different "options")

};

#endif // !defined(AFX_BITMAPCACHEKEY_H__FEB76A5F_93CC_4875_B3EF_B7394B123ACD__INCLUDED_)

---