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nsDrawingSurfaceMac.h
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00037 
00038 #ifndef nsDrawingSurfaceMac_h___
00039 #define nsDrawingSurfaceMac_h___
00040 
00041 #include "nsIDrawingSurface.h"
00042 #include "nsIDrawingSurfaceMac.h"
00043 
00044 #include "nsGfxUtils.h"
00045 #include "nsCarbonHelpers.h"
00046 
00047 class nsGraphicState;
00048 
00049 class nsDrawingSurfaceMac : public nsIDrawingSurface,
00050                             nsIDrawingSurfaceMac
00051 {
00052 public:
00053   nsDrawingSurfaceMac();
00054   virtual ~nsDrawingSurfaceMac();
00055 
00056   NS_DECL_ISUPPORTS
00057 
00058   //nsIDrawingSurface interface
00059   NS_IMETHOD Lock(PRInt32 aX, PRInt32 aY, PRUint32 aWidth, PRUint32 aHeight,
00060                   void **aBits, PRInt32 *aStride, PRInt32 *aWidthBytes,
00061                   PRUint32 aFlags);
00062   NS_IMETHOD Unlock(void);
00063   NS_IMETHOD GetDimensions(PRUint32 *aWidth, PRUint32 *aHeight);
00064   NS_IMETHOD IsOffscreen(PRBool *aOffScreen) { *aOffScreen = mIsOffscreen; return NS_OK; }
00065   NS_IMETHOD IsPixelAddressable(PRBool *aAddressable);
00066   NS_IMETHOD GetPixelFormat(nsPixelFormat *aFormat);
00067 
00068   //nsIDrawingSurfaceMac interface
00069   NS_IMETHOD Init(nsIDrawingSurface* aDS);
00070   NS_IMETHOD Init(CGrafPtr aThePort);
00071   NS_IMETHOD Init(nsIWidget *aTheWidget);
00072   NS_IMETHOD Init(PRUint32 aDepth,PRUint32 aWidth, PRUint32 aHeight,PRUint32 aFlags);
00073        NS_IMETHOD GetGrafPtr(CGrafPtr     *aTheGrafPtr) { *aTheGrafPtr = mPort; return NS_OK; }
00074   NS_IMETHOD_(CGContextRef) StartQuartzDrawing();
00075   NS_IMETHOD_(void) EndQuartzDrawing(CGContextRef aContext);
00076 
00077   // locals
00078        nsGraphicState*      GetGS(void) {return mGS;}
00079 
00080 private:
00081   CGrafPtr      mPort;      // the onscreen or offscreen CGrafPtr;    
00082 
00083   PRUint32      mWidth;
00084   PRUint32      mHeight;
00085   PRInt32       mLockOffset;
00086   PRInt32       mLockHeight;
00087   PRUint32      mLockFlags;
00088   PRBool        mIsOffscreen;
00089   PRBool        mIsLocked;
00090 
00091   nsGraphicState* mGS;      // a graphics state for the surface
00092 #ifdef MOZ_WIDGET_COCOA
00093   void* mWidgetView;        // non-retained ('weak') ref to NSView
00094 #endif
00095 };
00096 
00097 #endif