dlls/gdiplus/region.c

   1 /*
   2  * Copyright (C) 2008 Google (Lei Zhang)
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include <stdarg.h>
  20
  21 #include "windef.h"
  22 #include "winbase.h"
  23 #include "wingdi.h"
  24
  25 #include "objbase.h"
  26
  27 #include "gdiplus.h"
  28 #include "gdiplus_private.h"
  29 #include "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
  32
  33 /**********************************************************
  34  *
  35  * Data returned by GdipGetRegionData (for rectangle based regions)
  36  * looks something like this:
  37  *
  38  * struct region_data_header
  39  * {
  40  *   DWORD size;     size in bytes of the data - 8.
  41  *   DWORD magic1;   probably a checksum.
  42  *   DWORD magic2;   always seems to be 0xdbc01001 - version?
  43  *   DWORD num_ops;  number of combining ops * 2
  44  * };
  45  *
  46  * Then follows a sequence of combining ops and RECTFs.
  47  *
  48  * Combining ops are just stored as their CombineMode value.
  49  *
  50  * Each RECTF is preceded by the DWORD 0x10000000.  An empty rect is
  51  * stored as 0x10000002 (with no following RECTF) and an infinite rect
  52  * is stored as 0x10000003 (again with no following RECTF).
  53  *
  54  * The combining ops are stored in the reverse order to the RECTFs and in the
  55  * reverse order to which the region was constructed.
  56  *
  57  * When two or more complex regions (ie those with more than one rect)
  58  * are combined, the combining op for the two regions comes first,
  59  * then the combining ops for the rects in region 1, followed by the
  60  * rects for region 1, then follows the combining ops for region 2 and
  61  * finally region 2's rects.  Presumably you're supposed to use the
  62  * 0x10000000 rect header to find the end of the op list (the count of
  63  * the rects in each region is not stored).
  64  *
  65  * When a simple region (1 rect) is combined, it's treated as if a single rect
  66  * is being combined.
  67  *
  68  */
  69
  70 GpStatus WINGDIPAPI GdipCloneRegion(GpRegion *region, GpRegion **clone)
  71 {
  72     FIXME("(%p %p): stub\n", region, clone);
  73
  74     *clone = NULL;
  75     return NotImplemented;
  76 }
  77
  78 GpStatus WINGDIPAPI GdipCombineRegionPath(GpRegion *region, GpPath *path, CombineMode mode)
  79 {
  80     FIXME("(%p %p %d): stub\n", region, path, mode);
  81     return NotImplemented;
  82 }
  83
  84 GpStatus WINGDIPAPI GdipCombineRegionRect(GpRegion *region, GDIPCONST GpRectF *rect,
  85                                           CombineMode mode)
  86 {
  87     FIXME("(%p %p %d): stub\n", region, rect, mode);
  88     return NotImplemented;
  89 }
  90
  91 GpStatus WINGDIPAPI GdipCombineRegionRectI(GpRegion *region, GDIPCONST GpRect *rect,
  92                                            CombineMode mode)
  93 {
  94     FIXME("(%p %p %d): stub\n", region, rect, mode);
  95     return NotImplemented;
  96 }
  97
  98 GpStatus WINGDIPAPI GdipCombineRegionRegion(GpRegion *region1, GpRegion *region2,
  99                                             CombineMode mode)
 100 {
 101     FIXME("(%p %p %d): stub\n", region1, region2, mode);
 102     return NotImplemented;
 103 }
 104
 105 GpStatus WINGDIPAPI GdipCreateRegion(GpRegion **region)
 106 {
 107     FIXME("(%p): stub\n", region);
 108
 109     *region = NULL;
 110     return NotImplemented;
 111 }
 112
 113 GpStatus WINGDIPAPI GdipCreateRegionPath(GpPath *path, GpRegion **region)
 114 {
 115     FIXME("(%p, %p): stub\n", path, region);
 116
 117     *region = NULL;
 118     return NotImplemented;
 119 }
 120
 121 GpStatus WINGDIPAPI GdipCreateRegionRect(GDIPCONST GpRectF *rect, GpRegion **region)
 122 {
 123     FIXME("(%p, %p): stub\n", rect, region);
 124
 125     *region = NULL;
 126     return NotImplemented;
 127 }
 128
 129 GpStatus WINGDIPAPI GdipCreateRegionRectI(GDIPCONST GpRect *rect, GpRegion **region)
 130 {
 131     FIXME("(%p, %p): stub\n", rect, region);
 132
 133     *region = NULL;
 134     return NotImplemented;
 135 }
 136
 137 GpStatus WINGDIPAPI GdipCreateRegionRgnData(GDIPCONST BYTE *data, INT size, GpRegion **region)
 138 {
 139     FIXME("(%p, %d, %p): stub\n", data, size, region);
 140
 141     *region = NULL;
 142     return NotImplemented;
 143 }
 144
 145 GpStatus WINGDIPAPI GdipCreateRegionHrgn(HRGN hrgn, GpRegion **region)
 146 {
 147     FIXME("(%p, %p): stub\n", hrgn, region);
 148
 149     *region = NULL;
 150     return NotImplemented;
 151 }
 152
 153 GpStatus WINGDIPAPI GdipDeleteRegion(GpRegion *region)
 154 {
 155     FIXME("(%p): stub\n", region);
 156     return NotImplemented;
 157 }
 158
 159 GpStatus WINGDIPAPI GdipGetRegionBounds(GpRegion *region, GpGraphics *graphics, GpRectF *rect)
 160 {
 161     FIXME("(%p, %p, %p): stub\n", region, graphics, rect);
 162
 163     return NotImplemented;
 164 }
 165
 166 GpStatus WINGDIPAPI GdipGetRegionBoundsI(GpRegion *region, GpGraphics *graphics, GpRect *rect)
 167 {
 168     FIXME("(%p, %p, %p): stub\n", region, graphics, rect);
 169
 170     return NotImplemented;
 171 }
 172
 173 GpStatus WINGDIPAPI GdipGetRegionData(GpRegion *region, BYTE *buffer, UINT size, UINT *needed)
 174 {
 175     FIXME("(%p, %p, %d, %p): stub\n", region, buffer, size, needed);
 176
 177     return NotImplemented;
 178 }
 179
 180 GpStatus WINGDIPAPI GdipGetRegionDataSize(GpRegion *region, UINT *needed)
 181 {
 182     FIXME("(%p, %p): stub\n", region, needed);
 183
 184     return NotImplemented;
 185 }
 186
 187 GpStatus WINGDIPAPI GdipGetRegionHRgn(GpRegion *region, GpGraphics *graphics, HRGN *hrgn)
 188 {
 189     FIXME("(%p, %p, %p): stub\n", region, graphics, hrgn);
 190
 191     *hrgn = NULL;
 192     return NotImplemented;
 193 }
 194
 195 GpStatus WINGDIPAPI GdipIsEmptyRegion(GpRegion *region, GpGraphics *graphics, BOOL *res)
 196 {
 197     FIXME("(%p, %p, %p): stub\n", region, graphics, res);
 198
 199     return NotImplemented;
 200 }
 201
 202 GpStatus WINGDIPAPI GdipIsEqualRegion(GpRegion *region, GpRegion *region2, GpGraphics *graphics,
 203                                       BOOL *res)
 204 {
 205     FIXME("(%p, %p, %p, %p): stub\n", region, region2, graphics, res);
 206
 207     return NotImplemented;
 208 }
 209
 210 GpStatus WINGDIPAPI GdipIsInfiniteRegion(GpRegion *region, GpGraphics *graphics, BOOL *res)
 211 {
 212     FIXME("(%p, %p, %p): stub\n", region, graphics, res);
 213
 214     return NotImplemented;
 215 }
 216
 217 GpStatus WINGDIPAPI GdipSetEmpty(GpRegion *region)
 218 {
 219     static int calls;
 220
 221     if(!(calls++))
 222         FIXME("not implemented\n");
 223
 224     return NotImplemented;
 225 }
 226
 227 GpStatus WINGDIPAPI GdipSetInfinite(GpRegion *region)
 228 {
 229     static int calls;
 230
 231     if(!(calls++))
 232         FIXME("not implemented\n");
 233
 234     return NotImplemented;
 235 }
 236
 237 GpStatus WINGDIPAPI GdipTransformRegion(GpRegion *region, GpMatrix *matrix)
 238 {
 239     FIXME("(%p, %p): stub\n", region, matrix);
 240
 241     return NotImplemented;
 242 }
 243
 244 GpStatus WINGDIPAPI GdipTranslateRegion(GpRegion *region, REAL dx, REAL dy)
 245 {
 246     FIXME("(%p, %f, %f): stub\n", region, dx, dy);
 247
 248     return NotImplemented;
 249 }
 250
 251 GpStatus WINGDIPAPI GdipTranslateRegionI(GpRegion *region, INT dx, INT dy)
 252 {
 253     FIXME("(%p, %d, %d): stub\n", region, dx, dy);
 254
 255     return NotImplemented;
 256 }