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#ifndef nsRegionWin_h___
#define nsRegionWin_h___

#include "nsIRegion.h"
#include "windows.h"

class nsRegionWin : public nsIRegion
{
public:
  nsRegionWin();

  NS_DECL_ISUPPORTS

  virtual nsresult Init();

  virtual void SetTo(const nsIRegion &aRegion);
  virtual void SetTo(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
  virtual void Intersect(const nsIRegion &aRegion);
  virtual void Intersect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
  virtual void Union(const nsIRegion &aRegion);
  virtual void Union(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
  virtual void Subtract(const nsIRegion &aRegion);
  virtual void Subtract(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
  virtual PRBool IsEmpty(void);
  virtual PRBool IsEqual(const nsIRegion &aRegion);
  virtual void GetBoundingBox(PRInt32 *aX, PRInt32 *aY, PRInt32 *aWidth, PRInt32 *aHeight);
  virtual void Offset(PRInt32 aXOffset, PRInt32 aYOffset);
  virtual PRBool ContainsRect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
  NS_IMETHOD GetRects(nsRegionRectSet **aRects);
  NS_IMETHOD FreeRects(nsRegionRectSet *aRects);
  NS_IMETHOD GetNativeRegion(void *&aRegion) const;
  NS_IMETHOD GetRegionComplexity(nsRegionComplexity &aComplexity) const;

  NS_IMETHOD GetNumRects(PRUint32 *aRects) const { *aRects = 0; return NS_OK; }
private:
  ~nsRegionWin();

  LPRGNDATA mData;
  PRUint32  mDataSize;

public:
  //public so the rendering context can poke these... shoot me. MMP
  HRGN      mRegion;
  int       mRegionType;
};

#endif  // nsRegionWin_h___ 
