gfx/src/thebes/nsThebesRegion.h

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  22  * Contributor(s):
  23  *   Stuart Parmenter <pavlov@pavlov.net>
  24  *   Vladimir Vukicevic <vladimir@pobox.com>
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  39
  40 #ifndef NSTHEBESREGION__H__
  41 #define NSTHEBESREGION__H__
  42
  43 #include "nsIRegion.h"
  44 #include "nsRegion.h"
  45
  46 class nsThebesRegion : public nsIRegion
  47 {
  48 public:
  49     nsThebesRegion();
  50
  51     NS_DECL_ISUPPORTS
  52
  53     // nsIRegion
  54     nsresult Init (void);
  55     void SetTo (const nsIRegion &aRegion);
  56     void SetTo (PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
  57     void Intersect (const nsIRegion &aRegion);
  58     void Intersect (PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
  59     void Union (const nsIRegion &aRegion);
  60     void Union (PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
  61     void Subtract (const nsIRegion &aRegion);
  62     void Subtract (PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
  63     PRBool IsEmpty (void);
  64     PRBool IsEqual (const nsIRegion &aRegion);
  65     void GetBoundingBox (PRInt32 *aX, PRInt32 *aY, PRInt32 *aWidth, PRInt32 *aHeight);
  66     void Offset (PRInt32 aXOffset, PRInt32 aYOffset);
  67     PRBool ContainsRect (PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
  68     NS_IMETHOD GetRects (nsRegionRectSet **aRects);
  69     NS_IMETHOD FreeRects (nsRegionRectSet *aRects);
  70     NS_IMETHOD GetNativeRegion (void *&aRegion) const;
  71     NS_IMETHOD GetRegionComplexity (nsRegionComplexity &aComplexity) const;
  72     NS_IMETHOD GetNumRects (PRUint32 *aRects) const;
  73
  74 protected:
  75     nsRegion mRegion;
  76 };
  77
  78 #endif