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#ifndef nsRegionMac_h___
#define nsRegionMac_h___

#include "nsIRegion.h"
#include <Quickdraw.h>

//------------------------------------------------------------------------

class nsRegionMac : public nsIRegion
{
public:
  nsRegionMac();
  virtual ~nsRegionMac();

  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;
  virtual nsresult SetNativeRegion(void *aRegion);
  NS_IMETHOD GetRegionComplexity(nsRegionComplexity &aComplexity) const;
  NS_IMETHOD GetNumRects(PRUint32 *aRects) const { *aRects = 0; return NS_OK; }

private:
	RgnHandle			      mRegion;
  nsRegionComplexity  mRegionType;

private:
  virtual void SetRegionType();
  virtual void SetRegionEmpty();
  virtual RgnHandle CreateRectRegion(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);

};

#endif  // nsRegionMac_h___ 
