reactos/dll/win32/gdiplus/graphicspath.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
  20 #include <stdarg.h>
  21 #include <math.h>
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "winuser.h"
  26 #include "wingdi.h"
  27
  28 #include "objbase.h"
  29
  30 #include "gdiplus.h"
  31 #include "gdiplus_private.h"
  32 #include "wine/debug.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
  35
  36 /* make sure path has enough space for len more points */
  37 static BOOL lengthen_path(GpPath *path, INT len)
  38 {
  39     /* initial allocation */
  40     if(path->datalen == 0){
  41         path->datalen = len * 2;
  42
  43         path->pathdata.Points = GdipAlloc(path->datalen * sizeof(PointF));
  44         if(!path->pathdata.Points)   return FALSE;
  45
  46         path->pathdata.Types = GdipAlloc(path->datalen);
  47         if(!path->pathdata.Types){
  48             GdipFree(path->pathdata.Points);
  49             return FALSE;
  50         }
  51     }
  52     /* reallocation, double size of arrays */
  53     else if(path->datalen - path->pathdata.Count < len){
  54         while(path->datalen - path->pathdata.Count < len)
  55             path->datalen *= 2;
  56
  57         path->pathdata.Points = HeapReAlloc(GetProcessHeap(), 0,
  58             path->pathdata.Points, path->datalen * sizeof(PointF));
  59         if(!path->pathdata.Points)  return FALSE;
  60
  61         path->pathdata.Types = HeapReAlloc(GetProcessHeap(), 0,
  62             path->pathdata.Types, path->datalen);
  63         if(!path->pathdata.Types)   return FALSE;
  64     }
  65
  66     return TRUE;
  67 }
  68
  69 GpStatus WINGDIPAPI GdipAddPathArc(GpPath *path, REAL x1, REAL y1, REAL x2,
  70     REAL y2, REAL startAngle, REAL sweepAngle)
  71 {
  72     INT count, old_count, i;
  73
  74     if(!path)
  75         return InvalidParameter;
  76
  77     count = arc2polybezier(NULL, x1, y1, x2, y2, startAngle, sweepAngle);
  78
  79     if(count == 0)
  80         return Ok;
  81     if(!lengthen_path(path, count))
  82         return OutOfMemory;
  83
  84     old_count = path->pathdata.Count;
  85     arc2polybezier(&path->pathdata.Points[old_count], x1, y1, x2, y2,
  86                    startAngle, sweepAngle);
  87
  88     for(i = 0; i < count; i++){
  89         path->pathdata.Types[old_count + i] = PathPointTypeBezier;
  90     }
  91
  92     path->pathdata.Types[old_count] =
  93         (path->newfigure ? PathPointTypeStart : PathPointTypeLine);
  94     path->newfigure = FALSE;
  95     path->pathdata.Count += count;
  96
  97     return Ok;
  98 }
  99
 100 GpStatus WINGDIPAPI GdipAddPathArcI(GpPath *path, INT x1, INT y1, INT x2,
 101    INT y2, REAL startAngle, REAL sweepAngle)
 102 {
 103     return GdipAddPathArc(path,(REAL)x1,(REAL)y1,(REAL)x2,(REAL)y2,startAngle,sweepAngle);
 104 }
 105
 106 GpStatus WINGDIPAPI GdipAddPathBezier(GpPath *path, REAL x1, REAL y1, REAL x2,
 107     REAL y2, REAL x3, REAL y3, REAL x4, REAL y4)
 108 {
 109     INT old_count;
 110
 111     if(!path)
 112         return InvalidParameter;
 113
 114     if(!lengthen_path(path, 4))
 115         return OutOfMemory;
 116
 117     old_count = path->pathdata.Count;
 118
 119     path->pathdata.Points[old_count].X = x1;
 120     path->pathdata.Points[old_count].Y = y1;
 121     path->pathdata.Points[old_count + 1].X = x2;
 122     path->pathdata.Points[old_count + 1].Y = y2;
 123     path->pathdata.Points[old_count + 2].X = x3;
 124     path->pathdata.Points[old_count + 2].Y = y3;
 125     path->pathdata.Points[old_count + 3].X = x4;
 126     path->pathdata.Points[old_count + 3].Y = y4;
 127
 128     path->pathdata.Types[old_count] =
 129         (path->newfigure ? PathPointTypeStart : PathPointTypeLine);
 130     path->pathdata.Types[old_count + 1] = PathPointTypeBezier;
 131     path->pathdata.Types[old_count + 2] = PathPointTypeBezier;
 132     path->pathdata.Types[old_count + 3] = PathPointTypeBezier;
 133
 134     path->newfigure = FALSE;
 135     path->pathdata.Count += 4;
 136
 137     return Ok;
 138 }
 139
 140 GpStatus WINGDIPAPI GdipAddPathBezierI(GpPath *path, INT x1, INT y1, INT x2,
 141     INT y2, INT x3, INT y3, INT x4, INT y4)
 142 {
 143     return GdipAddPathBezier(path,(REAL)x1,(REAL)y1,(REAL)x2,(REAL)y2,(REAL)x3,(REAL)y3,
 144                                   (REAL)x4,(REAL)y4);
 145 }
 146
 147 GpStatus WINGDIPAPI GdipAddPathBeziers(GpPath *path, GDIPCONST GpPointF *points,
 148     INT count)
 149 {
 150     INT i, old_count;
 151
 152     if(!path || !points || ((count - 1) % 3))
 153         return InvalidParameter;
 154
 155     if(!lengthen_path(path, count))
 156         return OutOfMemory;
 157
 158     old_count = path->pathdata.Count;
 159
 160     for(i = 0; i < count; i++){
 161         path->pathdata.Points[old_count + i].X = points[i].X;
 162         path->pathdata.Points[old_count + i].Y = points[i].Y;
 163         path->pathdata.Types[old_count + i] = PathPointTypeBezier;
 164     }
 165
 166     path->pathdata.Types[old_count] =
 167         (path->newfigure ? PathPointTypeStart : PathPointTypeLine);
 168     path->newfigure = FALSE;
 169     path->pathdata.Count += count;
 170
 171     return Ok;
 172 }
 173
 174 GpStatus WINGDIPAPI GdipAddPathBeziersI(GpPath *path, GDIPCONST GpPoint *points,
 175     INT count)
 176 {
 177     GpPointF *ptsF;
 178     GpStatus ret;
 179     INT i;
 180
 181     if(!points || ((count - 1) % 3))
 182         return InvalidParameter;
 183
 184     ptsF = GdipAlloc(sizeof(GpPointF) * count);
 185     if(!ptsF)
 186         return OutOfMemory;
 187
 188     for(i = 0; i < count; i++){
 189         ptsF[i].X = (REAL)points[i].X;
 190         ptsF[i].Y = (REAL)points[i].Y;
 191     }
 192
 193     ret = GdipAddPathBeziers(path, ptsF, count);
 194     GdipFree(ptsF);
 195
 196     return ret;
 197 }
 198
 199 GpStatus WINGDIPAPI GdipAddPathEllipse(GpPath *path, REAL x, REAL y, REAL width,
 200     REAL height)
 201 {
 202     INT old_count, numpts;
 203
 204     if(!path)
 205         return InvalidParameter;
 206
 207     if(!lengthen_path(path, MAX_ARC_PTS))
 208         return OutOfMemory;
 209
 210     old_count = path->pathdata.Count;
 211     if((numpts = arc2polybezier(&path->pathdata.Points[old_count],  x, y, width,
 212                                height, 0.0, 360.0)) != MAX_ARC_PTS){
 213         ERR("expected %d points but got %d\n", MAX_ARC_PTS, numpts);
 214         return GenericError;
 215     }
 216
 217     memset(&path->pathdata.Types[old_count + 1], PathPointTypeBezier,
 218            MAX_ARC_PTS - 1);
 219
 220     /* An ellipse is an intrinsic figure (always is its own subpath). */
 221     path->pathdata.Types[old_count] = PathPointTypeStart;
 222     path->pathdata.Types[old_count + MAX_ARC_PTS - 1] |= PathPointTypeCloseSubpath;
 223     path->newfigure = TRUE;
 224     path->pathdata.Count += MAX_ARC_PTS;
 225
 226     return Ok;
 227 }
 228
 229 GpStatus WINGDIPAPI GdipAddPathEllipseI(GpPath *path, INT x, INT y, INT width,
 230     INT height)
 231 {
 232     return GdipAddPathEllipse(path,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
 233 }
 234
 235 GpStatus WINGDIPAPI GdipAddPathLine2(GpPath *path, GDIPCONST GpPointF *points,
 236     INT count)
 237 {
 238     INT i, old_count;
 239
 240     if(!path || !points)
 241         return InvalidParameter;
 242
 243     if(!lengthen_path(path, count))
 244         return OutOfMemory;
 245
 246     old_count = path->pathdata.Count;
 247
 248     for(i = 0; i < count; i++){
 249         path->pathdata.Points[old_count + i].X = points[i].X;
 250         path->pathdata.Points[old_count + i].Y = points[i].Y;
 251         path->pathdata.Types[old_count + i] = PathPointTypeLine;
 252     }
 253
 254     if(path->newfigure){
 255         path->pathdata.Types[old_count] = PathPointTypeStart;
 256         path->newfigure = FALSE;
 257     }
 258
 259     path->pathdata.Count += count;
 260
 261     return Ok;
 262 }
 263
 264 GpStatus WINGDIPAPI GdipAddPathLine2I(GpPath *path, GDIPCONST GpPoint *points, INT count)
 265 {
 266     GpPointF *pointsF;
 267     INT i;
 268     GpStatus stat;
 269
 270     if(count <= 0)
 271         return InvalidParameter;
 272
 273     pointsF = GdipAlloc(sizeof(GpPointF) * count);
 274     if(!pointsF)    return OutOfMemory;
 275
 276     for(i = 0;i < count; i++){
 277         pointsF[i].X = (REAL)points[i].X;
 278         pointsF[i].Y = (REAL)points[i].Y;
 279     }
 280
 281     stat = GdipAddPathLine2(path, pointsF, count);
 282
 283     GdipFree(pointsF);
 284
 285     return stat;
 286 }
 287
 288 GpStatus WINGDIPAPI GdipAddPathLine(GpPath *path, REAL x1, REAL y1, REAL x2, REAL y2)
 289 {
 290     INT old_count;
 291
 292     if(!path)
 293         return InvalidParameter;
 294
 295     if(!lengthen_path(path, 2))
 296         return OutOfMemory;
 297
 298     old_count = path->pathdata.Count;
 299
 300     path->pathdata.Points[old_count].X = x1;
 301     path->pathdata.Points[old_count].Y = y1;
 302     path->pathdata.Points[old_count + 1].X = x2;
 303     path->pathdata.Points[old_count + 1].Y = y2;
 304
 305     path->pathdata.Types[old_count] =
 306         (path->newfigure ? PathPointTypeStart : PathPointTypeLine);
 307     path->pathdata.Types[old_count + 1] = PathPointTypeLine;
 308
 309     path->newfigure = FALSE;
 310     path->pathdata.Count += 2;
 311
 312     return Ok;
 313 }
 314
 315 GpStatus WINGDIPAPI GdipAddPathLineI(GpPath *path, INT x1, INT y1, INT x2, INT y2)
 316 {
 317     return GdipAddPathLine(path, (REAL)x1, (REAL)y1, (REAL)x2, (REAL)y2);
 318 }
 319
 320 GpStatus WINGDIPAPI GdipAddPathPath(GpPath *path, GDIPCONST GpPath* addingPath,
 321     BOOL connect)
 322 {
 323     INT old_count, count;
 324
 325     if(!path || !addingPath)
 326         return InvalidParameter;
 327
 328     old_count = path->pathdata.Count;
 329     count = addingPath->pathdata.Count;
 330
 331     if(!lengthen_path(path, count))
 332         return OutOfMemory;
 333
 334     memcpy(&path->pathdata.Points[old_count], addingPath->pathdata.Points,
 335            count * sizeof(GpPointF));
 336     memcpy(&path->pathdata.Types[old_count], addingPath->pathdata.Types, count);
 337
 338     if(path->newfigure || !connect)
 339         path->pathdata.Types[old_count] = PathPointTypeStart;
 340     else
 341         path->pathdata.Types[old_count] = PathPointTypeLine;
 342
 343     path->newfigure = FALSE;
 344     path->pathdata.Count += count;
 345
 346     return Ok;
 347 }
 348
 349 GpStatus WINGDIPAPI GdipAddPathPolygon(GpPath *path, GDIPCONST GpPointF *points, INT count)
 350 {
 351     INT old_count;
 352
 353     if(!path || !points || count < 3)
 354         return InvalidParameter;
 355
 356     if(!lengthen_path(path, count))
 357         return OutOfMemory;
 358
 359     old_count = path->pathdata.Count;
 360
 361     memcpy(&path->pathdata.Points[old_count], points, count*sizeof(GpPointF));
 362     memset(&path->pathdata.Types[old_count + 1], PathPointTypeLine, count - 1);
 363
 364     /* A polygon is an intrinsic figure */
 365     path->pathdata.Types[old_count] = PathPointTypeStart;
 366     path->pathdata.Types[old_count + count - 1] |= PathPointTypeCloseSubpath;
 367     path->newfigure = TRUE;
 368     path->pathdata.Count += count;
 369
 370     return Ok;
 371 }
 372
 373 GpStatus WINGDIPAPI GdipAddPathPolygonI(GpPath *path, GDIPCONST GpPoint *points, INT count)
 374 {
 375     GpPointF *ptf;
 376     GpStatus status;
 377     INT i;
 378
 379     if(!points || count < 3)
 380         return InvalidParameter;
 381
 382     ptf = GdipAlloc(sizeof(GpPointF) * count);
 383     if(!ptf)
 384         return OutOfMemory;
 385
 386     for(i = 0; i < count; i++){
 387         ptf[i].X = (REAL)points[i].X;
 388         ptf[i].Y = (REAL)points[i].Y;
 389     }
 390
 391     status = GdipAddPathPolygon(path, ptf, count);
 392
 393     GdipFree(ptf);
 394
 395     return status;
 396 }
 397
 398 GpStatus WINGDIPAPI GdipClonePath(GpPath* path, GpPath **clone)
 399 {
 400     if(!path || !clone)
 401         return InvalidParameter;
 402
 403     *clone = GdipAlloc(sizeof(GpPath));
 404     if(!*clone) return OutOfMemory;
 405
 406     **clone = *path;
 407
 408     (*clone)->pathdata.Points = GdipAlloc(path->datalen * sizeof(PointF));
 409     (*clone)->pathdata.Types = GdipAlloc(path->datalen);
 410     if(!(*clone)->pathdata.Points || !(*clone)->pathdata.Types){
 411         GdipFree(*clone);
 412         GdipFree((*clone)->pathdata.Points);
 413         GdipFree((*clone)->pathdata.Types);
 414         return OutOfMemory;
 415     }
 416
 417     memcpy((*clone)->pathdata.Points, path->pathdata.Points,
 418            path->datalen * sizeof(PointF));
 419     memcpy((*clone)->pathdata.Types, path->pathdata.Types, path->datalen);
 420
 421     return Ok;
 422 }
 423
 424 GpStatus WINGDIPAPI GdipClosePathFigure(GpPath* path)
 425 {
 426     if(!path)
 427         return InvalidParameter;
 428
 429     if(path->pathdata.Count > 0){
 430         path->pathdata.Types[path->pathdata.Count - 1] |= PathPointTypeCloseSubpath;
 431         path->newfigure = TRUE;
 432     }
 433
 434     return Ok;
 435 }
 436
 437 GpStatus WINGDIPAPI GdipClosePathFigures(GpPath* path)
 438 {
 439     INT i;
 440
 441     if(!path)
 442         return InvalidParameter;
 443
 444     for(i = 1; i < path->pathdata.Count; i++){
 445         if(path->pathdata.Types[i] == PathPointTypeStart)
 446             path->pathdata.Types[i-1] |= PathPointTypeCloseSubpath;
 447     }
 448
 449     path->newfigure = TRUE;
 450
 451     return Ok;
 452 }
 453
 454 GpStatus WINGDIPAPI GdipCreatePath(GpFillMode fill, GpPath **path)
 455 {
 456     if(!path)
 457         return InvalidParameter;
 458
 459     *path = GdipAlloc(sizeof(GpPath));
 460     if(!*path)  return OutOfMemory;
 461
 462     (*path)->fill = fill;
 463     (*path)->newfigure = TRUE;
 464
 465     return Ok;
 466 }
 467
 468 GpStatus WINGDIPAPI GdipCreatePath2(GDIPCONST GpPointF* points,
 469     GDIPCONST BYTE* types, INT count, GpFillMode fill, GpPath **path)
 470 {
 471     if(!path)
 472         return InvalidParameter;
 473
 474     *path = GdipAlloc(sizeof(GpPath));
 475     if(!*path)  return OutOfMemory;
 476
 477     (*path)->pathdata.Points = GdipAlloc(count * sizeof(PointF));
 478     (*path)->pathdata.Types = GdipAlloc(count);
 479
 480     if(!(*path)->pathdata.Points || !(*path)->pathdata.Types){
 481         GdipFree((*path)->pathdata.Points);
 482         GdipFree((*path)->pathdata.Types);
 483         GdipFree(*path);
 484         return OutOfMemory;
 485     }
 486
 487     memcpy((*path)->pathdata.Points, points, count * sizeof(PointF));
 488     memcpy((*path)->pathdata.Types, types, count);
 489     (*path)->pathdata.Count = count;
 490     (*path)->datalen = count;
 491
 492     (*path)->fill = fill;
 493     (*path)->newfigure = TRUE;
 494
 495     return Ok;
 496 }
 497
 498 GpStatus WINGDIPAPI GdipCreatePath2I(GDIPCONST GpPoint* points,
 499     GDIPCONST BYTE* types, INT count, GpFillMode fill, GpPath **path)
 500 {
 501     GpPointF *ptF;
 502     GpStatus ret;
 503     INT i;
 504
 505     ptF = GdipAlloc(sizeof(GpPointF)*count);
 506
 507     for(i = 0;i < count; i++){
 508         ptF[i].X = (REAL)points[i].X;
 509         ptF[i].Y = (REAL)points[i].Y;
 510     }
 511
 512     ret = GdipCreatePath2(ptF, types, count, fill, path);
 513
 514     GdipFree(ptF);
 515
 516     return ret;
 517 }
 518
 519 GpStatus WINGDIPAPI GdipDeletePath(GpPath *path)
 520 {
 521     if(!path)
 522         return InvalidParameter;
 523
 524     GdipFree(path->pathdata.Points);
 525     GdipFree(path->pathdata.Types);
 526     GdipFree(path);
 527
 528     return Ok;
 529 }
 530
 531 GpStatus WINGDIPAPI GdipGetPathData(GpPath *path, GpPathData* pathData)
 532 {
 533     if(!path || !pathData)
 534         return InvalidParameter;
 535
 536     /* Only copy data. pathData allocation/freeing controlled by wrapper class.
 537        Assumed that pathData is enough wide to get all data - controlled by wrapper too. */
 538     memcpy(pathData->Points, path->pathdata.Points, sizeof(PointF) * pathData->Count);
 539     memcpy(pathData->Types , path->pathdata.Types , pathData->Count);
 540
 541     return Ok;
 542 }
 543
 544 GpStatus WINGDIPAPI GdipGetPathFillMode(GpPath *path, GpFillMode *fillmode)
 545 {
 546     if(!path || !fillmode)
 547         return InvalidParameter;
 548
 549     *fillmode = path->fill;
 550
 551     return Ok;
 552 }
 553
 554 GpStatus WINGDIPAPI GdipGetPathLastPoint(GpPath* path, GpPointF* lastPoint)
 555 {
 556     INT count;
 557
 558     if(!path || !lastPoint)
 559         return InvalidParameter;
 560
 561     count = path->pathdata.Count;
 562     if(count > 0)
 563         *lastPoint = path->pathdata.Points[count-1];
 564
 565     return Ok;
 566 }
 567
 568 GpStatus WINGDIPAPI GdipGetPathPoints(GpPath *path, GpPointF* points, INT count)
 569 {
 570     if(!path)
 571         return InvalidParameter;
 572
 573     if(count < path->pathdata.Count)
 574         return InsufficientBuffer;
 575
 576     memcpy(points, path->pathdata.Points, path->pathdata.Count * sizeof(GpPointF));
 577
 578     return Ok;
 579 }
 580
 581 GpStatus WINGDIPAPI GdipGetPathPointsI(GpPath *path, GpPoint* points, INT count)
 582 {
 583     GpStatus ret;
 584     GpPointF *ptf;
 585     INT i;
 586
 587     if(count <= 0)
 588         return InvalidParameter;
 589
 590     ptf = GdipAlloc(sizeof(GpPointF)*count);
 591     if(!ptf)    return OutOfMemory;
 592
 593     ret = GdipGetPathPoints(path,ptf,count);
 594     if(ret == Ok)
 595         for(i = 0;i < count;i++){
 596             points[i].X = roundr(ptf[i].X);
 597             points[i].Y = roundr(ptf[i].Y);
 598         };
 599     GdipFree(ptf);
 600
 601     return ret;
 602 }
 603
 604 GpStatus WINGDIPAPI GdipGetPathTypes(GpPath *path, BYTE* types, INT count)
 605 {
 606     if(!path)
 607         return InvalidParameter;
 608
 609     if(count < path->pathdata.Count)
 610         return InsufficientBuffer;
 611
 612     memcpy(types, path->pathdata.Types, path->pathdata.Count);
 613
 614     return Ok;
 615 }
 616
 617 /* Windows expands the bounding box to the maximum possible bounding box
 618  * for a given pen.  For example, if a line join can extend past the point
 619  * it's joining by x units, the bounding box is extended by x units in every
 620  * direction (even though this is too conservative for most cases). */
 621 GpStatus WINGDIPAPI GdipGetPathWorldBounds(GpPath* path, GpRectF* bounds,
 622     GDIPCONST GpMatrix *matrix, GDIPCONST GpPen *pen)
 623 {
 624     GpPointF * points, temp_pts[4];
 625     INT count, i;
 626     REAL path_width = 1.0, width, height, temp, low_x, low_y, high_x, high_y;
 627
 628     /* Matrix and pen can be null. */
 629     if(!path || !bounds)
 630         return InvalidParameter;
 631
 632     /* If path is empty just return. */
 633     count = path->pathdata.Count;
 634     if(count == 0){
 635         bounds->X = bounds->Y = bounds->Width = bounds->Height = 0.0;
 636         return Ok;
 637     }
 638
 639     points = path->pathdata.Points;
 640
 641     low_x = high_x = points[0].X;
 642     low_y = high_y = points[0].Y;
 643
 644     for(i = 1; i < count; i++){
 645         low_x = min(low_x, points[i].X);
 646         low_y = min(low_y, points[i].Y);
 647         high_x = max(high_x, points[i].X);
 648         high_y = max(high_y, points[i].Y);
 649     }
 650
 651     width = high_x - low_x;
 652     height = high_y - low_y;
 653
 654     /* This looks unusual but it's the only way I can imitate windows. */
 655     if(matrix){
 656         temp_pts[0].X = low_x;
 657         temp_pts[0].Y = low_y;
 658         temp_pts[1].X = low_x;
 659         temp_pts[1].Y = high_y;
 660         temp_pts[2].X = high_x;
 661         temp_pts[2].Y = high_y;
 662         temp_pts[3].X = high_x;
 663         temp_pts[3].Y = low_y;
 664
 665         GdipTransformMatrixPoints((GpMatrix*)matrix, temp_pts, 4);
 666         low_x = temp_pts[0].X;
 667         low_y = temp_pts[0].Y;
 668
 669         for(i = 1; i < 4; i++){
 670             low_x = min(low_x, temp_pts[i].X);
 671             low_y = min(low_y, temp_pts[i].Y);
 672         }
 673
 674         temp = width;
 675         width = height * fabs(matrix->matrix[2]) + width * fabs(matrix->matrix[0]);
 676         height = height * fabs(matrix->matrix[3]) + temp * fabs(matrix->matrix[1]);
 677     }
 678
 679     if(pen){
 680         path_width = pen->width / 2.0;
 681
 682         if(count > 2)
 683             path_width = max(path_width,  pen->width * pen->miterlimit / 2.0);
 684         /* FIXME: this should probably also check for the startcap */
 685         if(pen->endcap & LineCapNoAnchor)
 686             path_width = max(path_width,  pen->width * 2.2);
 687
 688         low_x -= path_width;
 689         low_y -= path_width;
 690         width += 2.0 * path_width;
 691         height += 2.0 * path_width;
 692     }
 693
 694     bounds->X = low_x;
 695     bounds->Y = low_y;
 696     bounds->Width = width;
 697     bounds->Height = height;
 698
 699     return Ok;
 700 }
 701
 702 GpStatus WINGDIPAPI GdipGetPathWorldBoundsI(GpPath* path, GpRect* bounds,
 703     GDIPCONST GpMatrix *matrix, GDIPCONST GpPen *pen)
 704 {
 705     GpStatus ret;
 706     GpRectF boundsF;
 707
 708     ret = GdipGetPathWorldBounds(path,&boundsF,matrix,pen);
 709
 710     if(ret == Ok){
 711         bounds->X      = roundr(boundsF.X);
 712         bounds->Y      = roundr(boundsF.Y);
 713         bounds->Width  = roundr(boundsF.Width);
 714         bounds->Height = roundr(boundsF.Height);
 715     }
 716
 717     return ret;
 718 }
 719
 720 GpStatus WINGDIPAPI GdipGetPointCount(GpPath *path, INT *count)
 721 {
 722     if(!path)
 723         return InvalidParameter;
 724
 725     *count = path->pathdata.Count;
 726
 727     return Ok;
 728 }
 729
 730 GpStatus WINGDIPAPI GdipIsOutlineVisiblePathPointI(GpPath* path, INT x, INT y,
 731     GpPen *pen, GpGraphics *graphics, BOOL *result)
 732 {
 733     static int calls;
 734
 735     if(!path || !pen)
 736         return InvalidParameter;
 737
 738     if(!(calls++))
 739         FIXME("not implemented\n");
 740
 741     return NotImplemented;
 742 }
 743
 744 GpStatus WINGDIPAPI GdipStartPathFigure(GpPath *path)
 745 {
 746     if(!path)
 747         return InvalidParameter;
 748
 749     path->newfigure = TRUE;
 750
 751     return Ok;
 752 }
 753
 754 GpStatus WINGDIPAPI GdipResetPath(GpPath *path)
 755 {
 756     if(!path)
 757         return InvalidParameter;
 758
 759     path->pathdata.Count = 0;
 760     path->newfigure = TRUE;
 761     path->fill = FillModeAlternate;
 762
 763     return Ok;
 764 }
 765
 766 GpStatus WINGDIPAPI GdipSetPathFillMode(GpPath *path, GpFillMode fill)
 767 {
 768     if(!path)
 769         return InvalidParameter;
 770
 771     path->fill = fill;
 772
 773     return Ok;
 774 }
 775
 776 GpStatus WINGDIPAPI GdipTransformPath(GpPath *path, GpMatrix *matrix)
 777 {
 778     if(!path)
 779         return InvalidParameter;
 780
 781     if(path->pathdata.Count == 0)
 782         return Ok;
 783
 784     return GdipTransformMatrixPoints(matrix, path->pathdata.Points,
 785                                      path->pathdata.Count);
 786 }
 787
 788 GpStatus WINGDIPAPI GdipAddPathRectangle(GpPath *path, REAL x, REAL y,
 789     REAL width, REAL height)
 790 {
 791     GpPath *backup;
 792     GpPointF ptf[2];
 793     GpStatus retstat;
 794     BOOL old_new;
 795
 796     if(!path || width < 0.0 || height < 0.0)
 797         return InvalidParameter;
 798
 799     /* make a backup copy of path data */
 800     if((retstat = GdipClonePath(path, &backup)) != Ok)
 801         return retstat;
 802
 803     /* rectangle should start as new path */
 804     old_new = path->newfigure;
 805     path->newfigure = TRUE;
 806     if((retstat = GdipAddPathLine(path,x,y,x+width,y)) != Ok){
 807         path->newfigure = old_new;
 808         goto fail;
 809     }
 810
 811     ptf[0].X = x+width;
 812     ptf[0].Y = y+height;
 813     ptf[1].X = x;
 814     ptf[1].Y = y+height;
 815
 816     if((retstat = GdipAddPathLine2(path, ptf, 2)) != Ok)  goto fail;
 817     path->pathdata.Types[path->pathdata.Count-1] |= PathPointTypeCloseSubpath;
 818
 819     /* free backup */
 820     GdipDeletePath(backup);
 821     return Ok;
 822
 823 fail:
 824     /* reverting */
 825     GdipDeletePath(path);
 826     GdipClonePath(backup, &path);
 827     GdipDeletePath(backup);
 828
 829     return retstat;
 830 }
 831
 832 GpStatus WINGDIPAPI GdipAddPathRectangleI(GpPath *path, INT x, INT y,
 833     INT width, INT height)
 834 {
 835     return GdipAddPathRectangle(path,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
 836 }
 837
 838 GpStatus WINGDIPAPI GdipAddPathRectangles(GpPath *path, GDIPCONST GpRectF *rects, INT count)
 839 {
 840     GpPath *backup;
 841     GpStatus retstat;
 842     INT i;
 843
 844     /* count == 0 - verified condition  */
 845     if(!path || !rects || count == 0)
 846         return InvalidParameter;
 847
 848     if(count < 0)
 849         return OutOfMemory;
 850
 851     /* make a backup copy */
 852     if((retstat = GdipClonePath(path, &backup)) != Ok)
 853         return retstat;
 854
 855     for(i = 0; i < count; i++){
 856         if((retstat = GdipAddPathRectangle(path,rects[i].X,rects[i].Y,rects[i].Width,rects[i].Height)) != Ok)
 857             goto fail;
 858     }
 859
 860     /* free backup */
 861     GdipDeletePath(backup);
 862     return Ok;
 863
 864 fail:
 865     /* reverting */
 866     GdipDeletePath(path);
 867     GdipClonePath(backup, &path);
 868     GdipDeletePath(backup);
 869
 870     return retstat;
 871 }
 872
 873 GpStatus WINGDIPAPI GdipAddPathRectanglesI(GpPath *path, GDIPCONST GpRect *rects, INT count)
 874 {
 875     GpRectF *rectsF;
 876     GpStatus retstat;
 877     INT i;
 878
 879     if(!rects || count == 0)
 880         return InvalidParameter;
 881
 882     if(count < 0)
 883         return OutOfMemory;
 884
 885     rectsF = GdipAlloc(sizeof(GpRectF)*count);
 886
 887     for(i = 0;i < count;i++){
 888         rectsF[i].X      = (REAL)rects[i].X;
 889         rectsF[i].Y      = (REAL)rects[i].Y;
 890         rectsF[i].Width  = (REAL)rects[i].Width;
 891         rectsF[i].Height = (REAL)rects[i].Height;
 892     }
 893
 894     retstat = GdipAddPathRectangles(path, rectsF, count);
 895     GdipFree(rectsF);
 896
 897     return retstat;
 898 }
 899
 900 GpStatus WINGDIPAPI GdipSetPathMarker(GpPath* path)
 901 {
 902     INT count;
 903
 904     if(!path)
 905         return InvalidParameter;
 906
 907     count = path->pathdata.Count;
 908
 909     /* set marker flag */
 910     if(count > 0)
 911         path->pathdata.Types[count-1] |= PathPointTypePathMarker;
 912
 913     return Ok;
 914 }
 915
 916 GpStatus WINGDIPAPI GdipClearPathMarkers(GpPath* path)
 917 {
 918     INT count;
 919     INT i;
 920
 921     if(!path)
 922         return InvalidParameter;
 923
 924     count = path->pathdata.Count;
 925
 926     for(i = 0; i < count - 1; i++){
 927         path->pathdata.Types[i] &= ~PathPointTypePathMarker;
 928     }
 929
 930     return Ok;
 931 }