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     gp_pen->customstart = NULL;
 120     gp_pen->customend = NULL;
 121
 122     if(!((gp_pen->unit == UnitWorld) || (gp_pen->unit == UnitPixel))) {
 123         FIXME("UnitWorld, UnitPixel only supported units\n");
 124         GdipFree(gp_pen);
 125         return NotImplemented;
 126     }
 127
 128     GdipCloneBrush(brush, &clone_brush);
 129     gp_pen->brush = clone_brush;
 130
 131     *pen = gp_pen;
 132
 133     return Ok;
 134 }
 135
 136 GpStatus WINGDIPAPI GdipDeletePen(GpPen *pen)
 137 {
 138     if(!pen)    return InvalidParameter;
 139
 140     GdipDeleteBrush(pen->brush);
 141     GdipDeleteCustomLineCap(pen->customstart);
 142     GdipDeleteCustomLineCap(pen->customend);
 143     GdipFree(pen->dashes);
 144     GdipFree(pen);
 145
 146     return Ok;
 147 }
 148
 149 GpStatus WINGDIPAPI GdipGetPenBrushFill(GpPen *pen, GpBrush **brush)
 150 {
 151     if(!pen || !brush)
 152         return InvalidParameter;
 153
 154     return GdipCloneBrush(pen->brush, brush);
 155 }
 156
 157 GpStatus WINGDIPAPI GdipGetPenColor(GpPen *pen, ARGB *argb)
 158 {
 159     if(!pen || !argb)
 160         return InvalidParameter;
 161
 162     if(pen->brush->bt != BrushTypeSolidColor)
 163         return NotImplemented;
 164
 165     return GdipGetSolidFillColor(((GpSolidFill*)pen->brush), argb);
 166 }
 167
 168 GpStatus WINGDIPAPI GdipGetPenCustomEndCap(GpPen *pen, GpCustomLineCap** customCap)
 169 {
 170     if(!pen || !customCap)
 171         return InvalidParameter;
 172
 173     if(!pen->customend){
 174         *customCap = NULL;
 175         return Ok;
 176     }
 177
 178     return GdipCloneCustomLineCap(pen->customend, customCap);
 179 }
 180
 181 GpStatus WINGDIPAPI GdipGetPenCustomStartCap(GpPen *pen, GpCustomLineCap** customCap)
 182 {
 183     if(!pen || !customCap)
 184         return InvalidParameter;
 185
 186     if(!pen->customstart){
 187         *customCap = NULL;
 188         return Ok;
 189     }
 190
 191     return GdipCloneCustomLineCap(pen->customstart, customCap);
 192 }
 193
 194 GpStatus WINGDIPAPI GdipGetPenDashArray(GpPen *pen, REAL *dash, INT count)
 195 {
 196     if(!pen || !dash || count > pen->numdashes)
 197         return InvalidParameter;
 198
 199     /* note: if you pass a negative value for count, it crashes native gdiplus. */
 200     if(count < 0)
 201         return GenericError;
 202
 203     memcpy(dash, pen->dashes, count * sizeof(REAL));
 204
 205     return Ok;
 206 }
 207
 208 GpStatus WINGDIPAPI GdipGetPenDashCap197819(GpPen *pen, GpDashCap *dashCap)
 209 {
 210     if(!pen || !dashCap)
 211         return InvalidParameter;
 212
 213     *dashCap = pen->dashcap;
 214
 215     return Ok;
 216 }
 217
 218 GpStatus WINGDIPAPI GdipGetPenDashCount(GpPen *pen, INT *count)
 219 {
 220     if(!pen || !count)
 221         return InvalidParameter;
 222
 223     *count = pen->numdashes;
 224
 225     return Ok;
 226 }
 227
 228 GpStatus WINGDIPAPI GdipGetPenDashOffset(GpPen *pen, REAL *offset)
 229 {
 230     if(!pen || !offset)
 231         return InvalidParameter;
 232
 233     *offset = pen->offset;
 234
 235     return Ok;
 236 }
 237
 238 GpStatus WINGDIPAPI GdipGetPenDashStyle(GpPen *pen, GpDashStyle *dash)
 239 {
 240     if(!pen || !dash)
 241         return InvalidParameter;
 242
 243     *dash = pen->dash;
 244
 245     return Ok;
 246 }
 247
 248 GpStatus WINGDIPAPI GdipGetPenEndCap(GpPen *pen, GpLineCap *endCap)
 249 {
 250     if(!pen || !endCap)
 251         return InvalidParameter;
 252
 253     *endCap = pen->endcap;
 254
 255     return Ok;
 256 }
 257
 258 GpStatus WINGDIPAPI GdipGetPenLineJoin(GpPen *pen, GpLineJoin *lineJoin)
 259 {
 260     if(!pen || !lineJoin)
 261         return InvalidParameter;
 262
 263     *lineJoin = pen->join;
 264
 265     return Ok;
 266 }
 267
 268 GpStatus WINGDIPAPI GdipGetPenMode(GpPen *pen, GpPenAlignment *mode)
 269 {
 270     if(!pen || !mode)
 271         return InvalidParameter;
 272
 273     *mode = pen->align;
 274
 275     return Ok;
 276 }
 277
 278 GpStatus WINGDIPAPI GdipGetPenMiterLimit(GpPen *pen, REAL *miterLimit)
 279 {
 280     if(!pen || !miterLimit)
 281         return InvalidParameter;
 282
 283     *miterLimit = pen->miterlimit;
 284
 285     return Ok;
 286 }
 287
 288 GpStatus WINGDIPAPI GdipGetPenStartCap(GpPen *pen, GpLineCap *startCap)
 289 {
 290     if(!pen || !startCap)
 291         return InvalidParameter;
 292
 293     *startCap = pen->startcap;
 294
 295     return Ok;
 296 }
 297
 298 GpStatus WINGDIPAPI GdipGetPenUnit(GpPen *pen, GpUnit *unit)
 299 {
 300     if(!pen || !unit)
 301         return InvalidParameter;
 302
 303     *unit = pen->unit;
 304
 305     return Ok;
 306 }
 307
 308 GpStatus WINGDIPAPI GdipGetPenWidth(GpPen *pen, REAL *width)
 309 {
 310     if(!pen || !width)
 311         return InvalidParameter;
 312
 313     *width = pen->width;
 314
 315     return Ok;
 316 }
 317
 318 GpStatus WINGDIPAPI GdipSetPenBrushFill(GpPen *pen, GpBrush *brush)
 319 {
 320     if(!pen || !brush)
 321         return InvalidParameter;
 322
 323     GdipDeleteBrush(pen->brush);
 324     return GdipCloneBrush(brush, &pen->brush);
 325 }
 326
 327 GpStatus WINGDIPAPI GdipSetPenColor(GpPen *pen, ARGB argb)
 328 {
 329     if(!pen)
 330         return InvalidParameter;
 331
 332     if(pen->brush->bt != BrushTypeSolidColor)
 333         return NotImplemented;
 334
 335     return GdipSetSolidFillColor(((GpSolidFill*)pen->brush), argb);
 336 }
 337
 338 GpStatus WINGDIPAPI GdipSetPenCustomEndCap(GpPen *pen, GpCustomLineCap* customCap)
 339 {
 340     GpCustomLineCap * cap;
 341     GpStatus ret;
 342
 343     /* native crashes on pen == NULL, customCap != NULL */
 344     if(!customCap) return InvalidParameter;
 345
 346     if((ret = GdipCloneCustomLineCap(customCap, &cap)) == Ok){
 347         GdipDeleteCustomLineCap(pen->customend);
 348         pen->endcap = LineCapCustom;
 349         pen->customend = cap;
 350     }
 351
 352     return ret;
 353 }
 354
 355 GpStatus WINGDIPAPI GdipSetPenCustomStartCap(GpPen *pen, GpCustomLineCap* customCap)
 356 {
 357     GpCustomLineCap * cap;
 358     GpStatus ret;
 359
 360     /* native crashes on pen == NULL, customCap != NULL */
 361     if(!customCap) return InvalidParameter;
 362
 363     if((ret = GdipCloneCustomLineCap(customCap, &cap)) == Ok){
 364         GdipDeleteCustomLineCap(pen->customstart);
 365         pen->startcap = LineCapCustom;
 366         pen->customstart = cap;
 367     }
 368
 369     return ret;
 370 }
 371
 372 GpStatus WINGDIPAPI GdipSetPenDashArray(GpPen *pen, GDIPCONST REAL *dash,
 373     INT count)
 374 {
 375     INT i;
 376     REAL sum = 0;
 377
 378     if(!pen || !dash)
 379         return InvalidParameter;
 380
 381     if(count <= 0)
 382         return OutOfMemory;
 383
 384     for(i = 0; i < count; i++){
 385         sum += dash[i];
 386         if(dash[i] < 0.0)
 387             return InvalidParameter;
 388     }
 389
 390     if(sum == 0.0 && count)
 391         return InvalidParameter;
 392
 393     GdipFree(pen->dashes);
 394     pen->dashes = NULL;
 395
 396     if(count > 0)
 397         pen->dashes = GdipAlloc(count * sizeof(REAL));
 398     if(!pen->dashes){
 399         pen->numdashes = 0;
 400         return OutOfMemory;
 401     }
 402
 403     GdipSetPenDashStyle(pen, DashStyleCustom);
 404     memcpy(pen->dashes, dash, count * sizeof(REAL));
 405     pen->numdashes = count;
 406
 407     return Ok;
 408 }
 409
 410 GpStatus WINGDIPAPI GdipSetPenDashCap197819(GpPen *pen, GpDashCap dashCap)
 411 {
 412     if(!pen)
 413         return InvalidParameter;
 414
 415     pen->dashcap = dashCap;
 416
 417     return Ok;
 418 }
 419
 420 /* FIXME: dash offset not used */
 421 GpStatus WINGDIPAPI GdipSetPenDashOffset(GpPen *pen, REAL offset)
 422 {
 423     if(!pen)
 424         return InvalidParameter;
 425
 426     pen->offset = offset;
 427
 428     return Ok;
 429 }
 430
 431 GpStatus WINGDIPAPI GdipSetPenDashStyle(GpPen *pen, GpDashStyle dash)
 432 {
 433     if(!pen)
 434         return InvalidParameter;
 435
 436     if(dash != DashStyleCustom){
 437         GdipFree(pen->dashes);
 438         pen->dashes = NULL;
 439         pen->numdashes = 0;
 440     }
 441
 442     pen->dash = dash;
 443     pen->style &= ~(PS_ALTERNATE | PS_SOLID | PS_DASH | PS_DOT | PS_DASHDOT |
 444                     PS_DASHDOTDOT | PS_NULL | PS_USERSTYLE | PS_INSIDEFRAME);
 445     pen->style |= gdip_to_gdi_dash(dash);
 446
 447     return Ok;
 448 }
 449
 450 GpStatus WINGDIPAPI GdipSetPenEndCap(GpPen *pen, GpLineCap cap)
 451 {
 452     if(!pen)    return InvalidParameter;
 453
 454     /* The old custom cap gets deleted even if the new style is LineCapCustom. */
 455     GdipDeleteCustomLineCap(pen->customend);
 456     pen->customend = NULL;
 457     pen->endcap = cap;
 458
 459     return Ok;
 460 }
 461
 462 /* FIXME: startcap, dashcap not used. */
 463 GpStatus WINGDIPAPI GdipSetPenLineCap197819(GpPen *pen, GpLineCap start,
 464     GpLineCap end, GpDashCap dash)
 465 {
 466     if(!pen)
 467         return InvalidParameter;
 468
 469     GdipDeleteCustomLineCap(pen->customend);
 470     GdipDeleteCustomLineCap(pen->customstart);
 471     pen->customend = NULL;
 472     pen->customstart = NULL;
 473
 474     pen->startcap = start;
 475     pen->endcap = end;
 476     pen->dashcap = dash;
 477
 478     return Ok;
 479 }
 480
 481 /* FIXME: Miter line joins behave a bit differently than they do in windows.
 482  * Both kinds of miter joins clip if the angle is less than 11 degrees. */
 483 GpStatus WINGDIPAPI GdipSetPenLineJoin(GpPen *pen, GpLineJoin join)
 484 {
 485     if(!pen)    return InvalidParameter;
 486
 487     pen->join = join;
 488     pen->style &= ~(PS_JOIN_ROUND | PS_JOIN_BEVEL | PS_JOIN_MITER);
 489     pen->style |= gdip_to_gdi_join(join);
 490
 491     return Ok;
 492 }
 493
 494 GpStatus WINGDIPAPI GdipSetPenMiterLimit(GpPen *pen, REAL limit)
 495 {
 496     if(!pen)
 497         return InvalidParameter;
 498
 499     pen->miterlimit = limit;
 500
 501     return Ok;
 502 }
 503
 504 GpStatus WINGDIPAPI GdipSetPenStartCap(GpPen *pen, GpLineCap cap)
 505 {
 506     if(!pen)    return InvalidParameter;
 507
 508     GdipDeleteCustomLineCap(pen->customstart);
 509     pen->customstart = NULL;
 510     pen->startcap = cap;
 511
 512     return Ok;
 513 }
 514
 515 GpStatus WINGDIPAPI GdipSetPenWidth(GpPen *pen, REAL width)
 516 {
 517     if(!pen)    return InvalidParameter;
 518
 519     pen->width = width;
 520
 521     return Ok;
 522 }
 523
 524 GpStatus WINGDIPAPI GdipSetPenMode(GpPen *pen, GpPenAlignment mode)
 525 {
 526     if(!pen)    return InvalidParameter;
 527
 528     pen->align = mode;
 529
 530     return Ok;
 531 }