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lightning-sunbird  0.9+nobinonly
nsGraphicsStateBeOS.h
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00002 /* ***** BEGIN LICENSE BLOCK *****
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00015  * The Original Code is mozilla.org code.
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00017  * The Initial Developer of the Original Code is
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00024  * Alternatively, the contents of this file may be used under the terms of
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00037 
00038 #ifndef nsGraphicsStateBeOS_h___
00039 #define nsGraphicsStateBeOS_h___
00040 
00041 #include "nsIRenderingContext.h"
00042 #include "nsIFontMetrics.h"
00043 #include "nsTransform2D.h"
00044 #include "nsRegionBeOS.h"
00045 #include "nsCOMPtr.h"
00046 
00047 class nsGraphicsState
00048 {
00049 public:
00050 
00051   nsTransform2D  *mMatrix;
00052   nsCOMPtr<nsIRegion> mClipRegion;
00053   nscolor         mColor;
00054   nsLineStyle     mLineStyle;
00055   nsIFontMetrics *mFontMetrics;
00056 
00057   nsGraphicsState *mNext; // link into free list of graphics states.
00058 
00059   friend class nsGraphicsStatePool;
00060 
00061 #ifndef USE_GS_POOL
00062   friend class nsRenderingContextBeOS;
00063 #endif
00064 
00065 private:
00066   nsGraphicsState();
00067   ~nsGraphicsState();
00068 };
00069 
00070 class nsGraphicsStatePool
00071 {
00072 public:
00073 
00074   static nsGraphicsState * GetNewGS();
00075   static void              ReleaseGS(nsGraphicsState* aGS);
00076   
00077   nsGraphicsStatePool();
00078   ~nsGraphicsStatePool();
00079   
00080 private:
00081   nsGraphicsState*   mFreeList;
00082   
00083   static nsGraphicsStatePool * PrivateGetPool();
00084   nsGraphicsState *            PrivateGetNewGS();
00085   void                         PrivateReleaseGS(nsGraphicsState* aGS);
00086   
00087   static nsGraphicsStatePool * gsThePool;
00088 };
00089 
00090 #endif /* nsGraphicsStateBeOS_h___ */