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95 lines
2.5 KiB
C
95 lines
2.5 KiB
C
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/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* PURPOSE: GDI Driver Paint Functions
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* FILE: subsys/win32k/eng/paint.c
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* PROGRAMER: Jason Filby
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* REVISION HISTORY:
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* 3/7/1999: Created
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*/
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#include <ddk/winddi.h>
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#include "objects.h"
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#include "brush.h"
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#include "enum.h"
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BOOL FillSolid(SURFOBJ *Surface, PRECTL Dimensions, ULONG iColor)
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{
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ULONG x, y, LineWidth, leftOfBitmap;
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SURFGDI *SurfaceGDI;
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SurfaceGDI = AccessInternalObjectFromUserObject(Surface);
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LineWidth = Dimensions->right - Dimensions->left;
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for (y = Dimensions->top; y < Dimensions->bottom; y++)
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{
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EngHLine(Surface, SurfaceGDI, Dimensions->left, y, LineWidth, iColor);
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}
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return TRUE;
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}
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BOOL EngPaintRgn(SURFOBJ *Surface, CLIPOBJ *ClipRegion, ULONG iColor, MIX Mix,
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BRUSHINST *BrushInst, POINTL *BrushPoint)
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{
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RECT_ENUM RectEnum;
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BOOL EnumMore;
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switch(ClipRegion->iMode) {
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case TC_RECTANGLES:
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/* Rectangular clipping can be handled without enumeration.
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Note that trivial clipping is not possible, since the clipping
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region defines the area to fill */
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if (ClipRegion->iDComplexity == DC_RECT)
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{
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FillSolid(Surface, &ClipRegion->rclBounds, iColor);
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} else {
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/* Enumerate all the rectangles and draw them */
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CLIPOBJ_cEnumStart(ClipRegion, FALSE, CT_RECTANGLES, CD_ANY,
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ENUM_RECT_LIMIT);
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do {
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EnumMore = CLIPOBJ_bEnum(ClipRegion, sizeof(RectEnum), (PVOID) &RectEnum);
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FillSolid(Surface, &RectEnum.arcl[0], iColor);
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} while (EnumMore);
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}
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return(TRUE);
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default:
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return(FALSE);
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}
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}
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BOOL EngPaint(IN SURFOBJ *Surface, IN CLIPOBJ *ClipRegion,
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IN BRUSHOBJ *Brush, IN POINTL *BrushOrigin,
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IN MIX Mix)
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{
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SURFGDI *SurfGDI;
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// Is the surface's Paint function hooked?
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SurfGDI = AccessInternalObjectFromUserObject(Surface);
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if((Surface->iType!=STYPE_BITMAP) && (SurfGDI->Paint!=NULL))
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{
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// Call the driver's DrvPaint
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return SurfGDI->Paint(Surface, ClipRegion, Brush, BrushOrigin, Mix);
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}
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// FIXME: We only support a brush's solid color attribute
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return(EngPaintRgn(Surface, ClipRegion, Brush->iSolidColor, Mix, NULL,
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BrushOrigin));
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}
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BOOL EngEraseSurface(SURFOBJ *Surface, RECTL *Rect, ULONG iColor)
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{
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return FillSolid(Surface, Rect, iColor);
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}
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