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Added some methods for tiling.
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@ -32,9 +32,38 @@ public:
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nsRenderingContextImpl();
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/** ---------------------------------------------------
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* See documentation in nsIRenderingContext.h
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* @update 03/29/00 dwc
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*/
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NS_IMETHOD DrawTile(nsIImage *aImage,nscoord aX0,nscoord aY0,nscoord aX1,nscoord aY1,nscoord aWidth,nscoord aHeight);
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protected:
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virtual ~nsRenderingContextImpl();
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/** ---------------------------------------------------
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* Check to see if the given size of tile can be imaged by the RenderingContext
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* @update 03/29/00 dwc
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* @param aWidth The width of the tile
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* @param aHeight The height of the tile
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* @return PR_TRUE the RenderingContext can handle this tile
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*/
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virtual PRBool CanTile(nscoord aWidth,nscoord aHeight) { return PR_FALSE; }
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/** ---------------------------------------------------
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* A bit blitter to tile images to the background recursively
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* @update 3/29/00 dwc
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* @param aDS -- Target drawing surface for the rendering context
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* @param aSrcRect -- Rectangle we are build with the image
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* @param aHeight -- height of the tile
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* @param aWidth -- width of the tile
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*/
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void TileImage(nsDrawingSurface aDS,nsRect &aSrcRect,PRInt16 aWidth,PRInt16 aHeight);
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public:
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};
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