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 GdipGetPenDashCap197819(GpPen *pen, GpDashCap *dashCap)
 181 {
 182     if(!pen || !dashCap)
 183         return InvalidParameter;
 184
 185     *dashCap = pen->dashcap;
 186
 187     return Ok;
 188 }
 189
 190 GpStatus WINGDIPAPI GdipGetPenDashCount(GpPen *pen, INT *count)
 191 {
 192     if(!pen || !count)
 193         return InvalidParameter;
 194
 195     *count = pen->numdashes;
 196
 197     return Ok;
 198 }
 199
 200 GpStatus WINGDIPAPI GdipGetPenDashOffset(GpPen *pen, REAL *offset)
 201 {
 202     if(!pen || !offset)
 203         return InvalidParameter;
 204
 205     *offset = pen->offset;
 206
 207     return Ok;
 208 }
 209
 210 GpStatus WINGDIPAPI GdipGetPenDashStyle(GpPen *pen, GpDashStyle *dash)
 211 {
 212     if(!pen || !dash)
 213         return InvalidParameter;
 214
 215     *dash = pen->dash;
 216
 217     return Ok;
 218 }
 219
 220 GpStatus WINGDIPAPI GdipGetPenEndCap(GpPen *pen, GpLineCap *endCap)
 221 {
 222     if(!pen || !endCap)
 223         return InvalidParameter;
 224
 225     *endCap = pen->endcap;
 226
 227     return Ok;
 228 }
 229
 230 GpStatus WINGDIPAPI GdipGetPenLineJoin(GpPen *pen, GpLineJoin *lineJoin)
 231 {
 232     if(!pen || !lineJoin)
 233         return InvalidParameter;
 234
 235     *lineJoin = pen->join;
 236
 237     return Ok;
 238 }
 239
 240 GpStatus WINGDIPAPI GdipGetPenMode(GpPen *pen, GpPenAlignment *mode)
 241 {
 242     if(!pen || !mode)
 243         return InvalidParameter;
 244
 245     *mode = pen->align;
 246
 247     return Ok;
 248 }
 249
 250 GpStatus WINGDIPAPI GdipGetPenMiterLimit(GpPen *pen, REAL *miterLimit)
 251 {
 252     if(!pen || !miterLimit)
 253         return InvalidParameter;
 254
 255     *miterLimit = pen->miterlimit;
 256
 257     return Ok;
 258 }
 259
 260 GpStatus WINGDIPAPI GdipGetPenStartCap(GpPen *pen, GpLineCap *startCap)
 261 {
 262     if(!pen || !startCap)
 263         return InvalidParameter;
 264
 265     *startCap = pen->startcap;
 266
 267     return Ok;
 268 }
 269
 270 GpStatus WINGDIPAPI GdipGetPenUnit(GpPen *pen, GpUnit *unit)
 271 {
 272     if(!pen || !unit)
 273         return InvalidParameter;
 274
 275     *unit = pen->unit;
 276
 277     return Ok;
 278 }
 279
 280 GpStatus WINGDIPAPI GdipGetPenWidth(GpPen *pen, REAL *width)
 281 {
 282     if(!pen || !width)
 283         return InvalidParameter;
 284
 285     *width = pen->width;
 286
 287     return Ok;
 288 }
 289
 290 GpStatus WINGDIPAPI GdipSetPenBrushFill(GpPen *pen, GpBrush *brush)
 291 {
 292     if(!pen || !brush)
 293         return InvalidParameter;
 294
 295     GdipDeleteBrush(pen->brush);
 296     return GdipCloneBrush(brush, &pen->brush);
 297 }
 298
 299 GpStatus WINGDIPAPI GdipSetPenColor(GpPen *pen, ARGB argb)
 300 {
 301     if(!pen)
 302         return InvalidParameter;
 303
 304     if(pen->brush->bt != BrushTypeSolidColor)
 305         return NotImplemented;
 306
 307     return GdipSetSolidFillColor(((GpSolidFill*)pen->brush), argb);
 308 }
 309
 310 GpStatus WINGDIPAPI GdipSetPenCustomEndCap(GpPen *pen, GpCustomLineCap* customCap)
 311 {
 312     GpCustomLineCap * cap;
 313     GpStatus ret;
 314
 315     if(!pen || !customCap) return InvalidParameter;
 316
 317     if((ret = GdipCloneCustomLineCap(customCap, &cap)) == Ok){
 318         GdipDeleteCustomLineCap(pen->customend);
 319         pen->endcap = LineCapCustom;
 320         pen->customend = cap;
 321     }
 322
 323     return ret;
 324 }
 325
 326 GpStatus WINGDIPAPI GdipSetPenCustomStartCap(GpPen *pen, GpCustomLineCap* customCap)
 327 {
 328     GpCustomLineCap * cap;
 329     GpStatus ret;
 330
 331     if(!pen || !customCap) return InvalidParameter;
 332
 333     if((ret = GdipCloneCustomLineCap(customCap, &cap)) == Ok){
 334         GdipDeleteCustomLineCap(pen->customstart);
 335         pen->startcap = LineCapCustom;
 336         pen->customstart = cap;
 337     }
 338
 339     return ret;
 340 }
 341
 342 GpStatus WINGDIPAPI GdipSetPenDashArray(GpPen *pen, GDIPCONST REAL *dash,
 343     INT count)
 344 {
 345     INT i;
 346     REAL sum = 0;
 347
 348     if(!pen || !dash)
 349         return InvalidParameter;
 350
 351     if(count <= 0)
 352         return OutOfMemory;
 353
 354     for(i = 0; i < count; i++){
 355         sum += dash[i];
 356         if(dash[i] < 0.0)
 357             return InvalidParameter;
 358     }
 359
 360     if(sum == 0.0 && count)
 361         return InvalidParameter;
 362
 363     GdipFree(pen->dashes);
 364     pen->dashes = NULL;
 365
 366     if(count > 0)
 367         pen->dashes = GdipAlloc(count * sizeof(REAL));
 368     if(!pen->dashes){
 369         pen->numdashes = 0;
 370         return OutOfMemory;
 371     }
 372
 373     GdipSetPenDashStyle(pen, DashStyleCustom);
 374     memcpy(pen->dashes, dash, count * sizeof(REAL));
 375     pen->numdashes = count;
 376
 377     return Ok;
 378 }
 379
 380 GpStatus WINGDIPAPI GdipSetPenDashCap197819(GpPen *pen, GpDashCap dashCap)
 381 {
 382     if(!pen)
 383         return InvalidParameter;
 384
 385     pen->dashcap = dashCap;
 386
 387     return Ok;
 388 }
 389
 390 /* FIXME: dash offset not used */
 391 GpStatus WINGDIPAPI GdipSetPenDashOffset(GpPen *pen, REAL offset)
 392 {
 393     if(!pen)
 394         return InvalidParameter;
 395
 396     pen->offset = offset;
 397
 398     return Ok;
 399 }
 400
 401 GpStatus WINGDIPAPI GdipSetPenDashStyle(GpPen *pen, GpDashStyle dash)
 402 {
 403     if(!pen)
 404         return InvalidParameter;
 405
 406     if(dash != DashStyleCustom){
 407         GdipFree(pen->dashes);
 408         pen->dashes = NULL;
 409         pen->numdashes = 0;
 410     }
 411
 412     pen->dash = dash;
 413     pen->style &= ~(PS_ALTERNATE | PS_SOLID | PS_DASH | PS_DOT | PS_DASHDOT |
 414                     PS_DASHDOTDOT | PS_NULL | PS_USERSTYLE | PS_INSIDEFRAME);
 415     pen->style |= gdip_to_gdi_dash(dash);
 416
 417     return Ok;
 418 }
 419
 420 GpStatus WINGDIPAPI GdipSetPenEndCap(GpPen *pen, GpLineCap cap)
 421 {
 422     if(!pen)    return InvalidParameter;
 423
 424     /* The old custom cap gets deleted even if the new style is LineCapCustom. */
 425     GdipDeleteCustomLineCap(pen->customend);
 426     pen->customend = NULL;
 427     pen->endcap = cap;
 428
 429     return Ok;
 430 }
 431
 432 /* FIXME: startcap, dashcap not used. */
 433 GpStatus WINGDIPAPI GdipSetPenLineCap197819(GpPen *pen, GpLineCap start,
 434     GpLineCap end, GpDashCap dash)
 435 {
 436     if(!pen)
 437         return InvalidParameter;
 438
 439     GdipDeleteCustomLineCap(pen->customend);
 440     GdipDeleteCustomLineCap(pen->customstart);
 441     pen->customend = NULL;
 442     pen->customstart = NULL;
 443
 444     pen->startcap = start;
 445     pen->endcap = end;
 446     pen->dashcap = dash;
 447
 448     return Ok;
 449 }
 450
 451 /* FIXME: Miter line joins behave a bit differently than they do in windows.
 452  * Both kinds of miter joins clip if the angle is less than 11 degrees. */
 453 GpStatus WINGDIPAPI GdipSetPenLineJoin(GpPen *pen, GpLineJoin join)
 454 {
 455     if(!pen)    return InvalidParameter;
 456
 457     pen->join = join;
 458     pen->style &= ~(PS_JOIN_ROUND | PS_JOIN_BEVEL | PS_JOIN_MITER);
 459     pen->style |= gdip_to_gdi_join(join);
 460
 461     return Ok;
 462 }
 463
 464 GpStatus WINGDIPAPI GdipSetPenMiterLimit(GpPen *pen, REAL limit)
 465 {
 466     if(!pen)
 467         return InvalidParameter;
 468
 469     pen->miterlimit = limit;
 470
 471     return Ok;
 472 }
 473
 474 GpStatus WINGDIPAPI GdipSetPenStartCap(GpPen *pen, GpLineCap cap)
 475 {
 476     if(!pen)    return InvalidParameter;
 477
 478     GdipDeleteCustomLineCap(pen->customstart);
 479     pen->customstart = NULL;
 480     pen->startcap = cap;
 481
 482     return Ok;
 483 }
 484
 485 GpStatus WINGDIPAPI GdipSetPenWidth(GpPen *pen, REAL width)
 486 {
 487     if(!pen)    return InvalidParameter;
 488
 489     pen->width = width;
 490
 491     return Ok;
 492 }
 493
 494 GpStatus WINGDIPAPI GdipSetPenMode(GpPen *pen, GpPenAlignment mode)
 495 {
 496     if(!pen)    return InvalidParameter;
 497
 498     pen->align = mode;
 499
 500     return Ok;
 501 }