dlls/gdiplus/pen.c

   1 /*
   2  * Copyright (C) 2007 Google (Evan Stade)
   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 static DWORD gdip_to_gdi_dash(GpDashStyle dash)
  34 {
  35     switch(dash){
  36         case DashStyleSolid:
  37             return PS_SOLID;
  38         case DashStyleDash:
  39             return PS_DASH;
  40         case DashStyleDot:
  41             return PS_DOT;
  42         case DashStyleDashDot:
  43             return PS_DASHDOT;
  44         case DashStyleDashDotDot:
  45             return PS_DASHDOTDOT;
  46         case DashStyleCustom:
  47             return PS_USERSTYLE;
  48         default:
  49             ERR("Not a member of GpDashStyle enumeration\n");
  50             return 0;
  51     }
  52 }
  53
  54 static DWORD gdip_to_gdi_join(GpLineJoin join)
  55 {
  56     switch(join){
  57         case LineJoinRound:
  58             return PS_JOIN_ROUND;
  59         case LineJoinBevel:
  60             return PS_JOIN_BEVEL;
  61         case LineJoinMiter:
  62         case LineJoinMiterClipped:
  63             return PS_JOIN_MITER;
  64         default:
  65             ERR("Not a member of GpLineJoin enumeration\n");
  66             return 0;
  67     }
  68 }
  69
  70 GpStatus WINGDIPAPI GdipClonePen(GpPen *pen, GpPen **clonepen)
  71 {
  72     if(!pen || !clonepen)
  73         return InvalidParameter;
  74
  75     *clonepen = GdipAlloc(sizeof(GpPen));
  76     if(!*clonepen)  return OutOfMemory;
  77
  78     **clonepen = *pen;
  79
  80     GdipCloneCustomLineCap(pen->customstart, &(*clonepen)->customstart);
  81     GdipCloneCustomLineCap(pen->customend, &(*clonepen)->customend);
  82     GdipCloneBrush(pen->brush, &(*clonepen)->brush);
  83
  84     return Ok;
  85 }
  86
  87 GpStatus WINGDIPAPI GdipCreatePen1(ARGB color, REAL width, GpUnit unit,
  88     GpPen **pen)
  89 {
  90     GpBrush *brush;
  91     GpStatus status;
  92
  93     GdipCreateSolidFill(color, (GpSolidFill **)(&brush));
  94     status = GdipCreatePen2(brush, width, unit, pen);
  95     GdipDeleteBrush(brush);
  96     return status;
  97 }
  98
  99 GpStatus WINGDIPAPI GdipCreatePen2(GpBrush *brush, REAL width, GpUnit unit,
 100     GpPen **pen)
 101 {
 102     GpPen *gp_pen;
 103     GpBrush *clone_brush;
 104
 105     if(!pen || !brush)
 106         return InvalidParameter;
 107
 108     gp_pen = GdipAlloc(sizeof(GpPen));
 109     if(!gp_pen)    return OutOfMemory;
 110
 111     gp_pen->style = GP_DEFAULT_PENSTYLE;
 112     gp_pen->width = width;
 113     gp_pen->unit = unit;
 114     gp_pen->endcap = LineCapFlat;
 115     gp_pen->join = LineJoinMiter;
 116     gp_pen->miterlimit = 10.0;
 117     gp_pen->dash = DashStyleSolid;
 118     gp_pen->offset = 0.0;
 119
 120     if(!((gp_pen->unit == UnitWorld) || (gp_pen->unit == UnitPixel))) {
 121         FIXME("UnitWorld, UnitPixel only supported units\n");
 122         GdipFree(gp_pen);
 123         return NotImplemented;
 124     }
 125
 126     GdipCloneBrush(brush, &clone_brush);
 127     gp_pen->brush = clone_brush;
 128
 129     *pen = gp_pen;
 130
 131     return Ok;
 132 }
 133
 134 GpStatus WINGDIPAPI GdipDeletePen(GpPen *pen)
 135 {
 136     if(!pen)    return InvalidParameter;
 137
 138     GdipDeleteBrush(pen->brush);
 139     GdipDeleteCustomLineCap(pen->customstart);
 140     GdipDeleteCustomLineCap(pen->customend);
 141     GdipFree(pen->dashes);
 142     GdipFree(pen);
 143
 144     return Ok;
 145 }
 146
 147 GpStatus WINGDIPAPI GdipGetPenBrushFill(GpPen *pen, GpBrush **brush)
 148 {
 149     if(!pen || !brush)
 150         return InvalidParameter;
 151
 152     return GdipCloneBrush(pen->brush, brush);
 153 }
 154
 155 GpStatus WINGDIPAPI GdipGetPenColor(GpPen *pen, ARGB *argb)
 156 {
 157     if(!pen || !argb)
 158         return InvalidParameter;
 159
 160     if(pen->brush->bt != BrushTypeSolidColor)
 161         return NotImplemented;
 162
 163     return GdipGetSolidFillColor(((GpSolidFill*)pen->brush), argb);
 164 }
 165
 166 GpStatus WINGDIPAPI GdipGetPenDashArray(GpPen *pen, REAL *dash, INT count)
 167 {
 168     if(!pen || !dash || count > pen->numdashes)
 169         return InvalidParameter;
 170
 171     /* note: if you pass a negative value for count, it crashes native gdiplus. */
 172     if(count < 0)
 173         return GenericError;
 174
 175     memcpy(dash, pen->dashes, count * sizeof(REAL));
 176
 177     return Ok;
 178 }
 179
 180 GpStatus WINGDIPAPI GdipGetPenDashOffset(GpPen *pen, REAL *offset)
 181 {
 182     if(!pen || !offset)
 183         return InvalidParameter;
 184
 185     *offset = pen->offset;
 186
 187     return Ok;
 188 }
 189
 190 GpStatus WINGDIPAPI GdipGetPenDashStyle(GpPen *pen, GpDashStyle *dash)
 191 {
 192     if(!pen || !dash)
 193         return InvalidParameter;
 194
 195     *dash = pen->dash;
 196
 197     return Ok;
 198 }
 199
 200 GpStatus WINGDIPAPI GdipGetPenEndCap(GpPen *pen, GpLineCap *endCap)
 201 {
 202     if(!pen || !endCap)
 203         return InvalidParameter;
 204
 205     *endCap = pen->endcap;
 206
 207     return Ok;
 208 }
 209
 210 GpStatus WINGDIPAPI GdipSetPenBrushFill(GpPen *pen, GpBrush *brush)
 211 {
 212     if(!pen || !brush)
 213         return InvalidParameter;
 214
 215     GdipDeleteBrush(pen->brush);
 216     return GdipCloneBrush(brush, &pen->brush);
 217 }
 218
 219 GpStatus WINGDIPAPI GdipSetPenColor(GpPen *pen, ARGB argb)
 220 {
 221     if(!pen)
 222         return InvalidParameter;
 223
 224     if(pen->brush->bt != BrushTypeSolidColor)
 225         return NotImplemented;
 226
 227     return GdipSetSolidFillColor(((GpSolidFill*)pen->brush), argb);
 228 }
 229
 230 GpStatus WINGDIPAPI GdipSetPenCustomEndCap(GpPen *pen, GpCustomLineCap* customCap)
 231 {
 232     GpCustomLineCap * cap;
 233     GpStatus ret;
 234
 235     if(!pen || !customCap) return InvalidParameter;
 236
 237     if((ret = GdipCloneCustomLineCap(customCap, &cap)) == Ok){
 238         GdipDeleteCustomLineCap(pen->customend);
 239         pen->endcap = LineCapCustom;
 240         pen->customend = cap;
 241     }
 242
 243     return ret;
 244 }
 245
 246 GpStatus WINGDIPAPI GdipSetPenCustomStartCap(GpPen *pen, GpCustomLineCap* customCap)
 247 {
 248     GpCustomLineCap * cap;
 249     GpStatus ret;
 250
 251     if(!pen || !customCap) return InvalidParameter;
 252
 253     if((ret = GdipCloneCustomLineCap(customCap, &cap)) == Ok){
 254         GdipDeleteCustomLineCap(pen->customstart);
 255         pen->startcap = LineCapCustom;
 256         pen->customstart = cap;
 257     }
 258
 259     return ret;
 260 }
 261
 262 GpStatus WINGDIPAPI GdipSetPenDashArray(GpPen *pen, GDIPCONST REAL *dash,
 263     INT count)
 264 {
 265     INT i;
 266     REAL sum = 0;
 267
 268     if(!pen || !dash)
 269         return InvalidParameter;
 270
 271     if(count <= 0)
 272         return OutOfMemory;
 273
 274     for(i = 0; i < count; i++){
 275         sum += dash[i];
 276         if(dash[i] < 0.0)
 277             return InvalidParameter;
 278     }
 279
 280     if(sum == 0.0 && count)
 281         return InvalidParameter;
 282
 283     GdipFree(pen->dashes);
 284     pen->dashes = NULL;
 285
 286     if(count > 0)
 287         pen->dashes = GdipAlloc(count * sizeof(REAL));
 288     if(!pen->dashes){
 289         pen->numdashes = 0;
 290         return OutOfMemory;
 291     }
 292
 293     GdipSetPenDashStyle(pen, DashStyleCustom);
 294     memcpy(pen->dashes, dash, count * sizeof(REAL));
 295     pen->numdashes = count;
 296
 297     return Ok;
 298 }
 299
 300 /* FIXME: dash offset not used */
 301 GpStatus WINGDIPAPI GdipSetPenDashOffset(GpPen *pen, REAL offset)
 302 {
 303     if(!pen)
 304         return InvalidParameter;
 305
 306     pen->offset = offset;
 307
 308     return Ok;
 309 }
 310
 311 GpStatus WINGDIPAPI GdipSetPenDashStyle(GpPen *pen, GpDashStyle dash)
 312 {
 313     if(!pen)
 314         return InvalidParameter;
 315
 316     if(dash != DashStyleCustom){
 317         GdipFree(pen->dashes);
 318         pen->dashes = NULL;
 319         pen->numdashes = 0;
 320     }
 321
 322     pen->dash = dash;
 323     pen->style &= ~(PS_ALTERNATE | PS_SOLID | PS_DASH | PS_DOT | PS_DASHDOT |
 324                     PS_DASHDOTDOT | PS_NULL | PS_USERSTYLE | PS_INSIDEFRAME);
 325     pen->style |= gdip_to_gdi_dash(dash);
 326
 327     return Ok;
 328 }
 329
 330 GpStatus WINGDIPAPI GdipSetPenEndCap(GpPen *pen, GpLineCap cap)
 331 {
 332     if(!pen)    return InvalidParameter;
 333
 334     /* The old custom cap gets deleted even if the new style is LineCapCustom. */
 335     GdipDeleteCustomLineCap(pen->customend);
 336     pen->customend = NULL;
 337     pen->endcap = cap;
 338
 339     return Ok;
 340 }
 341
 342 /* FIXME: startcap, dashcap not used. */
 343 GpStatus WINGDIPAPI GdipSetPenLineCap197819(GpPen *pen, GpLineCap start,
 344     GpLineCap end, GpDashCap dash)
 345 {
 346     if(!pen)
 347         return InvalidParameter;
 348
 349     GdipDeleteCustomLineCap(pen->customend);
 350     GdipDeleteCustomLineCap(pen->customstart);
 351     pen->customend = NULL;
 352     pen->customstart = NULL;
 353
 354     pen->startcap = start;
 355     pen->endcap = end;
 356     pen->dashcap = dash;
 357
 358     return Ok;
 359 }
 360
 361 /* FIXME: Miter line joins behave a bit differently than they do in windows.
 362  * Both kinds of miter joins clip if the angle is less than 11 degrees. */
 363 GpStatus WINGDIPAPI GdipSetPenLineJoin(GpPen *pen, GpLineJoin join)
 364 {
 365     if(!pen)    return InvalidParameter;
 366
 367     pen->join = join;
 368     pen->style &= ~(PS_JOIN_ROUND | PS_JOIN_BEVEL | PS_JOIN_MITER);
 369     pen->style |= gdip_to_gdi_join(join);
 370
 371     return Ok;
 372 }
 373
 374 GpStatus WINGDIPAPI GdipSetPenMiterLimit(GpPen *pen, REAL limit)
 375 {
 376     if(!pen)
 377         return InvalidParameter;
 378
 379     pen->miterlimit = limit;
 380
 381     return Ok;
 382 }
 383
 384 GpStatus WINGDIPAPI GdipSetPenStartCap(GpPen *pen, GpLineCap cap)
 385 {
 386     if(!pen)    return InvalidParameter;
 387
 388     GdipDeleteCustomLineCap(pen->customstart);
 389     pen->customstart = NULL;
 390     pen->startcap = cap;
 391
 392     return Ok;
 393 }
 394
 395 GpStatus WINGDIPAPI GdipSetPenWidth(GpPen *pen, REAL width)
 396 {
 397     if(!pen)    return InvalidParameter;
 398
 399     pen->width = width;
 400
 401     return Ok;
 402 }
 403
 404
 405 GpStatus WINGDIPAPI GdipSetPenMode(GpPen *pen, GpPenAlignment penAlignment)
 406 {
 407     if(!pen)    return InvalidParameter;
 408
 409     FIXME("stub (%d)\n", penAlignment);
 410
 411     return Ok;
 412 }