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nsRegionMac.h
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00037 
00038 #ifndef nsRegionMac_h___
00039 #define nsRegionMac_h___
00040 
00041 #include "nsIRegion.h"
00042 #include <Quickdraw.h>
00043 
00044 //------------------------------------------------------------------------
00045 
00046 class nsRegionMac : public nsIRegion
00047 {
00048 public:
00049   nsRegionMac();
00050   virtual ~nsRegionMac();
00051 
00052   NS_DECL_ISUPPORTS
00053 
00054   virtual nsresult Init();
00055 
00056   virtual void SetTo(const nsIRegion &aRegion);
00057   virtual void SetTo(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
00058   virtual void Intersect(const nsIRegion &aRegion);
00059   virtual void Intersect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
00060   virtual void Union(const nsIRegion &aRegion);
00061   virtual void Union(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
00062   virtual void Subtract(const nsIRegion &aRegion);
00063   virtual void Subtract(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
00064   virtual PRBool IsEmpty(void);
00065   virtual PRBool IsEqual(const nsIRegion &aRegion);
00066   virtual void GetBoundingBox(PRInt32 *aX, PRInt32 *aY, PRInt32 *aWidth, PRInt32 *aHeight);
00067   virtual void Offset(PRInt32 aXOffset, PRInt32 aYOffset);
00068   virtual PRBool ContainsRect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
00069   NS_IMETHOD GetRects(nsRegionRectSet **aRects);
00070   NS_IMETHOD FreeRects(nsRegionRectSet *aRects);
00071   NS_IMETHOD GetNativeRegion(void *&aRegion) const;
00072   virtual nsresult SetNativeRegion(void *aRegion);
00073   NS_IMETHOD GetRegionComplexity(nsRegionComplexity &aComplexity) const;
00074   NS_IMETHOD GetNumRects(PRUint32 *aRects) const { *aRects = 0; return NS_OK; }
00075 
00076 private:
00077        RgnHandle                         mRegion;
00078   nsRegionComplexity  mRegionType;
00079 
00080 private:
00081   virtual void SetRegionType();
00082   virtual void SetRegionEmpty();
00083   virtual RgnHandle CreateRectRegion(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
00084 
00085 };
00086 
00087 #endif  // nsRegionMac_h___