reactos/subsys/win32k/eng/paint.c

   1 /*
   2  *  ReactOS W32 Subsystem
   3  *  Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /* $Id$
  20  *
  21  * COPYRIGHT:         See COPYING in the top level directory
  22  * PROJECT:           ReactOS kernel
  23  * PURPOSE:           GDI Driver Paint Functions
  24  * FILE:              subsys/win32k/eng/paint.c
  25  * PROGRAMER:         Jason Filby
  26  * REVISION HISTORY:
  27  *                 3/7/1999: Created
  28  */
  29
  30 #include <w32k.h>
  31
  32 #define NDEBUG
  33 #include <debug.h>
  34
  35 BOOL STDCALL FillSolid(SURFOBJ *Surface, PRECTL pRect, ULONG iColor)
  36 {
  37   LONG y;
  38   ULONG LineWidth;
  39   BITMAPOBJ *BitmapObj;
  40
  41   ASSERT ( Surface );
  42   ASSERT ( pRect );
  43   BitmapObj = CONTAINING_RECORD(Surface, BITMAPOBJ, SurfObj);
  44   BITMAPOBJ_LockBitmapBits(BitmapObj);
  45   MouseSafetyOnDrawStart(Surface, pRect->left, pRect->top, pRect->right, pRect->bottom);
  46   LineWidth  = pRect->right - pRect->left;
  47   DPRINT(" LineWidth: %d, top: %d, bottom: %d\n", LineWidth, pRect->top, pRect->bottom);
  48   for (y = pRect->top; y < pRect->bottom; y++)
  49   {
  50     DibFunctionsForBitmapFormat[Surface->iBitmapFormat].DIB_HLine(
  51       Surface, pRect->left, pRect->right, y, iColor);
  52   }
  53   MouseSafetyOnDrawEnd(Surface);
  54   BITMAPOBJ_UnlockBitmapBits(BitmapObj);
  55
  56   return TRUE;
  57 }
  58
  59 BOOL STDCALL
  60 EngPaintRgn(SURFOBJ *Surface, CLIPOBJ *ClipRegion, ULONG iColor, MIX Mix,
  61             BRUSHOBJ *BrushObj, POINTL *BrushPoint)
  62 {
  63   RECT_ENUM RectEnum;
  64   BOOL EnumMore;
  65   ULONG i;
  66
  67   ASSERT(Surface);
  68   ASSERT(ClipRegion);
  69
  70   DPRINT("ClipRegion->iMode:%d, ClipRegion->iDComplexity: %d\n Color: %d", ClipRegion->iMode, ClipRegion->iDComplexity, iColor);
  71   switch(ClipRegion->iMode) {
  72
  73     case TC_RECTANGLES:
  74
  75     /* Rectangular clipping can be handled without enumeration.
  76        Note that trivial clipping is not possible, since the clipping
  77        region defines the area to fill */
  78
  79     if (ClipRegion->iDComplexity == DC_RECT)
  80     {
  81       FillSolid(Surface, &(ClipRegion->rclBounds), iColor);
  82     } else {
  83
  84       /* Enumerate all the rectangles and draw them */
  85       CLIPOBJ_cEnumStart(ClipRegion, FALSE, CT_RECTANGLES, CD_ANY, 0);
  86
  87       do {
  88         EnumMore = CLIPOBJ_bEnum(ClipRegion, sizeof(RectEnum), (PVOID) &RectEnum);
  89         for (i = 0; i < RectEnum.c; i++) {
  90           FillSolid(Surface, RectEnum.arcl + i, iColor);
  91         }
  92       } while (EnumMore);
  93     }
  94
  95     return(TRUE);
  96
  97     default:
  98        return(FALSE);
  99   }
 100 }
 101
 102 /*
 103  * @unimplemented
 104  */
 105 BOOL STDCALL
 106 EngPaint(IN SURFOBJ *Surface,
 107          IN CLIPOBJ *ClipRegion,
 108          IN BRUSHOBJ *Brush,
 109          IN POINTL *BrushOrigin,
 110          IN MIX  Mix)
 111 {
 112   BOOLEAN ret;
 113
 114   // FIXME: We only support a brush's solid color attribute
 115   ret = EngPaintRgn(Surface, ClipRegion, Brush->iSolidColor, Mix, Brush, BrushOrigin);
 116
 117   return ret;
 118 }
 119
 120 BOOL STDCALL
 121 IntEngPaint(IN SURFOBJ *Surface,
 122             IN CLIPOBJ *ClipRegion,
 123             IN BRUSHOBJ *Brush,
 124             IN POINTL *BrushOrigin,
 125             IN MIX  Mix)
 126 {
 127   BITMAPOBJ *BitmapObj = CONTAINING_RECORD(Surface, BITMAPOBJ, SurfObj);
 128   BOOL ret;
 129
 130   DPRINT("SurfGDI type: %d\n", Surface->iType);
 131   /* Is the surface's Paint function hooked? */
 132   if((Surface->iType!=STYPE_BITMAP) && (BitmapObj->flHooks & HOOK_PAINT))
 133   {
 134     // Call the driver's DrvPaint
 135     BITMAPOBJ_LockBitmapBits(BitmapObj);
 136     MouseSafetyOnDrawStart(Surface, ClipRegion->rclBounds.left,
 137                                  ClipRegion->rclBounds.top, ClipRegion->rclBounds.right,
 138                                                          ClipRegion->rclBounds.bottom);
 139
 140     ret = GDIDEVFUNCS(Surface).Paint(
 141       Surface, ClipRegion, Brush, BrushOrigin, Mix);
 142     MouseSafetyOnDrawEnd(Surface);
 143     BITMAPOBJ_UnlockBitmapBits(BitmapObj);
 144     return ret;
 145   }
 146   return EngPaint( Surface, ClipRegion, Brush, BrushOrigin, Mix );
 147
 148 }
 149 /* EOF */