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#ifndef nsRegionXlib_h___
#define nsRegionXlib_h___

#include "nsIRegion.h"

#include <X11/X.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>

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

  NS_DECL_ISUPPORTS

  nsresult Init();

  void SetTo(const nsIRegion &aRegion);
  void SetTo(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
  void Intersect(const nsIRegion &aRegion);
  void Intersect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
  void Union(const nsIRegion &aRegion);
  void Union(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
  void Subtract(const nsIRegion &aRegion);
  void Subtract(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
  PRBool IsEmpty(void);
  PRBool IsEqual(const nsIRegion &aRegion);
  void GetBoundingBox(PRInt32 *aX, PRInt32 *aY, PRInt32 *aWidth, PRInt32 *aHeight);
  void Offset(PRInt32 aXOffset, PRInt32 aYOffset);
  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;

protected:
  Region xlib_region_copy(Region region);
  Region xlib_region_from_rect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);

private:
  Region mRegion;
  static Region copyRegion;

  inline Region GetCopyRegion();
  inline void SetRegionEmpty();
};

#endif