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 static GpPenType bt_to_pt(GpBrushType bt)
  71 {
  72     switch(bt){
  73         case BrushTypeSolidColor:
  74             return PenTypeSolidColor;
  75         case BrushTypeHatchFill:
  76             return PenTypeHatchFill;
  77         case BrushTypeTextureFill:
  78             return PenTypeTextureFill;
  79         case BrushTypePathGradient:
  80             return PenTypePathGradient;
  81         case BrushTypeLinearGradient:
  82             return PenTypeLinearGradient;
  83         default:
  84             return PenTypeUnknown;
  85     }
  86 }
  87
  88 GpStatus WINGDIPAPI GdipClonePen(GpPen *pen, GpPen **clonepen)
  89 {
  90     TRACE("(%p, %p)\n", pen, clonepen);
  91
  92     if(!pen || !clonepen)
  93         return InvalidParameter;
  94
  95     *clonepen = GdipAlloc(sizeof(GpPen));
  96     if(!*clonepen)  return OutOfMemory;
  97
  98     **clonepen = *pen;
  99
 100     GdipCloneCustomLineCap(pen->customstart, &(*clonepen)->customstart);
 101     GdipCloneCustomLineCap(pen->customend, &(*clonepen)->customend);
 102     GdipCloneBrush(pen->brush, &(*clonepen)->brush);
 103
 104     TRACE("<-- %p\n", *clonepen);
 105
 106     return Ok;
 107 }
 108
 109 GpStatus WINGDIPAPI GdipCreatePen1(ARGB color, REAL width, GpUnit unit,
 110     GpPen **pen)
 111 {
 112     GpBrush *brush;
 113     GpStatus status;
 114
 115     TRACE("(%x, %.2f, %d, %p)\n", color, width, unit, pen);
 116
 117     GdipCreateSolidFill(color, (GpSolidFill **)(&brush));
 118     status = GdipCreatePen2(brush, width, unit, pen);
 119     GdipDeleteBrush(brush);
 120     return status;
 121 }
 122
 123 GpStatus WINGDIPAPI GdipCreatePen2(GpBrush *brush, REAL width, GpUnit unit,
 124     GpPen **pen)
 125 {
 126     GpPen *gp_pen;
 127     GpBrush *clone_brush;
 128
 129     TRACE("(%p, %.2f, %d, %p)\n", brush, width, unit, pen);
 130
 131     if(!pen || !brush)
 132         return InvalidParameter;
 133
 134     gp_pen = GdipAlloc(sizeof(GpPen));
 135     if(!gp_pen)    return OutOfMemory;
 136
 137     gp_pen->style = GP_DEFAULT_PENSTYLE;
 138     gp_pen->width = width;
 139     gp_pen->unit = unit;
 140     gp_pen->endcap = LineCapFlat;
 141     gp_pen->join = LineJoinMiter;
 142     gp_pen->miterlimit = 10.0;
 143     gp_pen->dash = DashStyleSolid;
 144     gp_pen->offset = 0.0;
 145     gp_pen->customstart = NULL;
 146     gp_pen->customend = NULL;
 147
 148     if(!((gp_pen->unit == UnitWorld) || (gp_pen->unit == UnitPixel))) {
 149         FIXME("UnitWorld, UnitPixel only supported units\n");
 150         GdipFree(gp_pen);
 151         return NotImplemented;
 152     }
 153
 154     GdipCloneBrush(brush, &clone_brush);
 155     gp_pen->brush = clone_brush;
 156
 157     *pen = gp_pen;
 158
 159     TRACE("<-- %p\n", *pen);
 160
 161     return Ok;
 162 }
 163
 164 GpStatus WINGDIPAPI GdipDeletePen(GpPen *pen)
 165 {
 166     TRACE("(%p)\n", pen);
 167
 168     if(!pen)    return InvalidParameter;
 169
 170     GdipDeleteBrush(pen->brush);
 171     GdipDeleteCustomLineCap(pen->customstart);
 172     GdipDeleteCustomLineCap(pen->customend);
 173     GdipFree(pen->dashes);
 174     GdipFree(pen);
 175
 176     return Ok;
 177 }
 178
 179 GpStatus WINGDIPAPI GdipGetPenBrushFill(GpPen *pen, GpBrush **brush)
 180 {
 181     TRACE("(%p, %p)\n", pen, brush);
 182
 183     if(!pen || !brush)
 184         return InvalidParameter;
 185
 186     return GdipCloneBrush(pen->brush, brush);
 187 }
 188
 189 GpStatus WINGDIPAPI GdipGetPenColor(GpPen *pen, ARGB *argb)
 190 {
 191     TRACE("(%p, %p)\n", pen, argb);
 192
 193     if(!pen || !argb)
 194         return InvalidParameter;
 195
 196     if(pen->brush->bt != BrushTypeSolidColor)
 197         return NotImplemented;
 198
 199     return GdipGetSolidFillColor(((GpSolidFill*)pen->brush), argb);
 200 }
 201
 202 GpStatus WINGDIPAPI GdipGetPenCustomEndCap(GpPen *pen, GpCustomLineCap** customCap)
 203 {
 204     TRACE("(%p, %p)\n", pen, customCap);
 205
 206     if(!pen || !customCap)
 207         return InvalidParameter;
 208
 209     if(!pen->customend){
 210         *customCap = NULL;
 211         return Ok;
 212     }
 213
 214     return GdipCloneCustomLineCap(pen->customend, customCap);
 215 }
 216
 217 GpStatus WINGDIPAPI GdipGetPenCustomStartCap(GpPen *pen, GpCustomLineCap** customCap)
 218 {
 219     TRACE("(%p, %p)\n", pen, customCap);
 220
 221     if(!pen || !customCap)
 222         return InvalidParameter;
 223
 224     if(!pen->customstart){
 225         *customCap = NULL;
 226         return Ok;
 227     }
 228
 229     return GdipCloneCustomLineCap(pen->customstart, customCap);
 230 }
 231
 232 GpStatus WINGDIPAPI GdipGetPenDashArray(GpPen *pen, REAL *dash, INT count)
 233 {
 234     TRACE("(%p, %p, %d)\n", pen, dash, count);
 235
 236     if(!pen || !dash || count > pen->numdashes)
 237         return InvalidParameter;
 238
 239     /* note: if you pass a negative value for count, it crashes native gdiplus. */
 240     if(count < 0)
 241         return GenericError;
 242
 243     memcpy(dash, pen->dashes, count * sizeof(REAL));
 244
 245     return Ok;
 246 }
 247
 248 GpStatus WINGDIPAPI GdipGetPenDashCap197819(GpPen *pen, GpDashCap *dashCap)
 249 {
 250     TRACE("(%p, %p)\n", pen, dashCap);
 251
 252     if(!pen || !dashCap)
 253         return InvalidParameter;
 254
 255     *dashCap = pen->dashcap;
 256
 257     return Ok;
 258 }
 259
 260 GpStatus WINGDIPAPI GdipGetPenDashCount(GpPen *pen, INT *count)
 261 {
 262     TRACE("(%p, %p)\n", pen, count);
 263
 264     if(!pen || !count)
 265         return InvalidParameter;
 266
 267     *count = pen->numdashes;
 268
 269     return Ok;
 270 }
 271
 272 GpStatus WINGDIPAPI GdipGetPenDashOffset(GpPen *pen, REAL *offset)
 273 {
 274     TRACE("(%p, %p)\n", pen, offset);
 275
 276     if(!pen || !offset)
 277         return InvalidParameter;
 278
 279     *offset = pen->offset;
 280
 281     return Ok;
 282 }
 283
 284 GpStatus WINGDIPAPI GdipGetPenDashStyle(GpPen *pen, GpDashStyle *dash)
 285 {
 286     TRACE("(%p, %p)\n", pen, dash);
 287
 288     if(!pen || !dash)
 289         return InvalidParameter;
 290
 291     *dash = pen->dash;
 292
 293     return Ok;
 294 }
 295
 296 GpStatus WINGDIPAPI GdipGetPenEndCap(GpPen *pen, GpLineCap *endCap)
 297 {
 298     TRACE("(%p, %p)\n", pen, endCap);
 299
 300     if(!pen || !endCap)
 301         return InvalidParameter;
 302
 303     *endCap = pen->endcap;
 304
 305     return Ok;
 306 }
 307
 308 GpStatus WINGDIPAPI GdipGetPenFillType(GpPen *pen, GpPenType* type)
 309 {
 310     TRACE("(%p, %p)\n", pen, type);
 311
 312     if(!pen || !type)
 313         return InvalidParameter;
 314
 315     *type = bt_to_pt(pen->brush->bt);
 316
 317     return Ok;
 318 }
 319
 320 GpStatus WINGDIPAPI GdipGetPenLineJoin(GpPen *pen, GpLineJoin *lineJoin)
 321 {
 322     TRACE("(%p, %p)\n", pen, lineJoin);
 323
 324     if(!pen || !lineJoin)
 325         return InvalidParameter;
 326
 327     *lineJoin = pen->join;
 328
 329     return Ok;
 330 }
 331
 332 GpStatus WINGDIPAPI GdipGetPenMode(GpPen *pen, GpPenAlignment *mode)
 333 {
 334     TRACE("(%p, %p)\n", pen, mode);
 335
 336     if(!pen || !mode)
 337         return InvalidParameter;
 338
 339     *mode = pen->align;
 340
 341     return Ok;
 342 }
 343
 344 GpStatus WINGDIPAPI GdipGetPenMiterLimit(GpPen *pen, REAL *miterLimit)
 345 {
 346     TRACE("(%p, %p)\n", pen, miterLimit);
 347
 348     if(!pen || !miterLimit)
 349         return InvalidParameter;
 350
 351     *miterLimit = pen->miterlimit;
 352
 353     return Ok;
 354 }
 355
 356 GpStatus WINGDIPAPI GdipGetPenStartCap(GpPen *pen, GpLineCap *startCap)
 357 {
 358     TRACE("(%p, %p)\n", pen, startCap);
 359
 360     if(!pen || !startCap)
 361         return InvalidParameter;
 362
 363     *startCap = pen->startcap;
 364
 365     return Ok;
 366 }
 367
 368 GpStatus WINGDIPAPI GdipGetPenUnit(GpPen *pen, GpUnit *unit)
 369 {
 370     TRACE("(%p, %p)\n", pen, unit);
 371
 372     if(!pen || !unit)
 373         return InvalidParameter;
 374
 375     *unit = pen->unit;
 376
 377     return Ok;
 378 }
 379
 380 GpStatus WINGDIPAPI GdipGetPenWidth(GpPen *pen, REAL *width)
 381 {
 382     TRACE("(%p, %p)\n", pen, width);
 383
 384     if(!pen || !width)
 385         return InvalidParameter;
 386
 387     *width = pen->width;
 388
 389     return Ok;
 390 }
 391
 392 GpStatus WINGDIPAPI GdipResetPenTransform(GpPen *pen)
 393 {
 394     static int calls;
 395
 396     if(!pen)
 397         return InvalidParameter;
 398
 399     if(!(calls++))
 400         FIXME("(%p) stub\n", pen);
 401
 402     return NotImplemented;
 403 }
 404
 405 GpStatus WINGDIPAPI GdipScalePenTransform(GpPen *pen, REAL sx, REAL sy, GpMatrixOrder order)
 406 {
 407     static int calls;
 408
 409     if(!pen)
 410         return InvalidParameter;
 411
 412     if(!(calls++))
 413         FIXME("(%p, %.2f, %.2f, %d) stub\n", pen, sx, sy, order);
 414
 415     return NotImplemented;
 416 }
 417
 418 GpStatus WINGDIPAPI GdipSetPenBrushFill(GpPen *pen, GpBrush *brush)
 419 {
 420     TRACE("(%p, %p)\n", pen, brush);
 421
 422     if(!pen || !brush)
 423         return InvalidParameter;
 424
 425     GdipDeleteBrush(pen->brush);
 426     return GdipCloneBrush(brush, &pen->brush);
 427 }
 428
 429 GpStatus WINGDIPAPI GdipSetPenColor(GpPen *pen, ARGB argb)
 430 {
 431     TRACE("(%p, %x)\n", pen, argb);
 432
 433     if(!pen)
 434         return InvalidParameter;
 435
 436     if(pen->brush->bt != BrushTypeSolidColor)
 437         return NotImplemented;
 438
 439     return GdipSetSolidFillColor(((GpSolidFill*)pen->brush), argb);
 440 }
 441
 442 GpStatus WINGDIPAPI GdipSetPenCompoundArray(GpPen *pen, GDIPCONST REAL *dash,
 443     INT count)
 444 {
 445     FIXME("(%p, %p, %i): stub\n", pen, dash, count);
 446
 447     if (!pen || !dash || count < 2 || count%2 == 1)
 448         return InvalidParameter;
 449
 450     return NotImplemented;
 451 }
 452
 453 GpStatus WINGDIPAPI GdipSetPenCustomEndCap(GpPen *pen, GpCustomLineCap* customCap)
 454 {
 455     GpCustomLineCap * cap;
 456     GpStatus ret;
 457
 458     TRACE("(%p, %p)\n", pen, customCap);
 459
 460     /* native crashes on pen == NULL, customCap != NULL */
 461     if(!customCap) return InvalidParameter;
 462
 463     if((ret = GdipCloneCustomLineCap(customCap, &cap)) == Ok){
 464         GdipDeleteCustomLineCap(pen->customend);
 465         pen->endcap = LineCapCustom;
 466         pen->customend = cap;
 467     }
 468
 469     return ret;
 470 }
 471
 472 GpStatus WINGDIPAPI GdipSetPenCustomStartCap(GpPen *pen, GpCustomLineCap* customCap)
 473 {
 474     GpCustomLineCap * cap;
 475     GpStatus ret;
 476
 477     TRACE("(%p, %p)\n", pen, customCap);
 478
 479     /* native crashes on pen == NULL, customCap != NULL */
 480     if(!customCap) return InvalidParameter;
 481
 482     if((ret = GdipCloneCustomLineCap(customCap, &cap)) == Ok){
 483         GdipDeleteCustomLineCap(pen->customstart);
 484         pen->startcap = LineCapCustom;
 485         pen->customstart = cap;
 486     }
 487
 488     return ret;
 489 }
 490
 491 GpStatus WINGDIPAPI GdipSetPenDashArray(GpPen *pen, GDIPCONST REAL *dash,
 492     INT count)
 493 {
 494     INT i;
 495     REAL sum = 0;
 496
 497     TRACE("(%p, %p, %d)\n", pen, dash, count);
 498
 499     if(!pen || !dash)
 500         return InvalidParameter;
 501
 502     if(count <= 0)
 503         return OutOfMemory;
 504
 505     for(i = 0; i < count; i++){
 506         sum += dash[i];
 507         if(dash[i] < 0.0)
 508             return InvalidParameter;
 509     }
 510
 511     if(sum == 0.0 && count)
 512         return InvalidParameter;
 513
 514     GdipFree(pen->dashes);
 515     pen->dashes = NULL;
 516
 517     if(count > 0)
 518         pen->dashes = GdipAlloc(count * sizeof(REAL));
 519     if(!pen->dashes){
 520         pen->numdashes = 0;
 521         return OutOfMemory;
 522     }
 523
 524     GdipSetPenDashStyle(pen, DashStyleCustom);
 525     memcpy(pen->dashes, dash, count * sizeof(REAL));
 526     pen->numdashes = count;
 527
 528     return Ok;
 529 }
 530
 531 GpStatus WINGDIPAPI GdipSetPenDashCap197819(GpPen *pen, GpDashCap dashCap)
 532 {
 533     TRACE("(%p, %d)\n", pen, dashCap);
 534
 535     if(!pen)
 536         return InvalidParameter;
 537
 538     pen->dashcap = dashCap;
 539
 540     return Ok;
 541 }
 542
 543 /* FIXME: dash offset not used */
 544 GpStatus WINGDIPAPI GdipSetPenDashOffset(GpPen *pen, REAL offset)
 545 {
 546     TRACE("(%p, %.2f)\n", pen, offset);
 547
 548     if(!pen)
 549         return InvalidParameter;
 550
 551     pen->offset = offset;
 552
 553     return Ok;
 554 }
 555
 556 GpStatus WINGDIPAPI GdipSetPenDashStyle(GpPen *pen, GpDashStyle dash)
 557 {
 558     TRACE("(%p, %d)\n", pen, dash);
 559
 560     if(!pen)
 561         return InvalidParameter;
 562
 563     if(dash != DashStyleCustom){
 564         GdipFree(pen->dashes);
 565         pen->dashes = NULL;
 566         pen->numdashes = 0;
 567     }
 568
 569     pen->dash = dash;
 570     pen->style &= ~(PS_ALTERNATE | PS_SOLID | PS_DASH | PS_DOT | PS_DASHDOT |
 571                     PS_DASHDOTDOT | PS_NULL | PS_USERSTYLE | PS_INSIDEFRAME);
 572     pen->style |= gdip_to_gdi_dash(dash);
 573
 574     return Ok;
 575 }
 576
 577 GpStatus WINGDIPAPI GdipSetPenEndCap(GpPen *pen, GpLineCap cap)
 578 {
 579     TRACE("(%p, %d)\n", pen, cap);
 580
 581     if(!pen)    return InvalidParameter;
 582
 583     /* The old custom cap gets deleted even if the new style is LineCapCustom. */
 584     GdipDeleteCustomLineCap(pen->customend);
 585     pen->customend = NULL;
 586     pen->endcap = cap;
 587
 588     return Ok;
 589 }
 590
 591 /* FIXME: startcap, dashcap not used. */
 592 GpStatus WINGDIPAPI GdipSetPenLineCap197819(GpPen *pen, GpLineCap start,
 593     GpLineCap end, GpDashCap dash)
 594 {
 595     TRACE("%p, %d, %d, %d)\n", pen, start, end, dash);
 596
 597     if(!pen)
 598         return InvalidParameter;
 599
 600     GdipDeleteCustomLineCap(pen->customend);
 601     GdipDeleteCustomLineCap(pen->customstart);
 602     pen->customend = NULL;
 603     pen->customstart = NULL;
 604
 605     pen->startcap = start;
 606     pen->endcap = end;
 607     pen->dashcap = dash;
 608
 609     return Ok;
 610 }
 611
 612 /* FIXME: Miter line joins behave a bit differently than they do in windows.
 613  * Both kinds of miter joins clip if the angle is less than 11 degrees. */
 614 GpStatus WINGDIPAPI GdipSetPenLineJoin(GpPen *pen, GpLineJoin join)
 615 {
 616     TRACE("(%p, %d)\n", pen, join);
 617
 618     if(!pen)    return InvalidParameter;
 619
 620     pen->join = join;
 621     pen->style &= ~(PS_JOIN_ROUND | PS_JOIN_BEVEL | PS_JOIN_MITER);
 622     pen->style |= gdip_to_gdi_join(join);
 623
 624     return Ok;
 625 }
 626
 627 GpStatus WINGDIPAPI GdipSetPenMiterLimit(GpPen *pen, REAL limit)
 628 {
 629     TRACE("(%p, %.2f)\n", pen, limit);
 630
 631     if(!pen)
 632         return InvalidParameter;
 633
 634     pen->miterlimit = limit;
 635
 636     return Ok;
 637 }
 638
 639 GpStatus WINGDIPAPI GdipSetPenStartCap(GpPen *pen, GpLineCap cap)
 640 {
 641     TRACE("(%p, %d)\n", pen, cap);
 642
 643     if(!pen)    return InvalidParameter;
 644
 645     GdipDeleteCustomLineCap(pen->customstart);
 646     pen->customstart = NULL;
 647     pen->startcap = cap;
 648
 649     return Ok;
 650 }
 651
 652 GpStatus WINGDIPAPI GdipSetPenWidth(GpPen *pen, REAL width)
 653 {
 654     TRACE("(%p, %.2f)\n", pen, width);
 655
 656     if(!pen)    return InvalidParameter;
 657
 658     pen->width = width;
 659
 660     return Ok;
 661 }
 662
 663 GpStatus WINGDIPAPI GdipSetPenMode(GpPen *pen, GpPenAlignment mode)
 664 {
 665     TRACE("(%p, %d)\n", pen, mode);
 666
 667     if(!pen)    return InvalidParameter;
 668
 669     pen->align = mode;
 670
 671     return Ok;
 672 }