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 typedef struct path_list_node_t path_list_node_t;
  37 struct path_list_node_t {
  38     GpPointF pt;
  39     BYTE type; /* PathPointTypeStart or PathPointTypeLine */
  40     path_list_node_t *next;
  41 };
  42
  43 /* init list */
  44 static BOOL init_path_list(path_list_node_t **node, REAL x, REAL y)
  45 {
  46     *node = GdipAlloc(sizeof(path_list_node_t));
  47     if(!*node)
  48         return FALSE;
  49
  50     (*node)->pt.X = x;
  51     (*node)->pt.Y = y;
  52     (*node)->type = PathPointTypeStart;
  53     (*node)->next = NULL;
  54
  55     return TRUE;
  56 }
  57
  58 /* free all nodes including argument */
  59 static void free_path_list(path_list_node_t *node)
  60 {
  61     path_list_node_t *n = node;
  62
  63     while(n){
  64         n = n->next;
  65         GdipFree(node);
  66         node = n;
  67     }
  68 }
  69
  70 /* Add a node after 'node' */
  71 /*
  72  * Returns
  73  *  pointer on success
  74  *  NULL    on allocation problems
  75  */
  76 static path_list_node_t* add_path_list_node(path_list_node_t *node, REAL x, REAL y, BOOL type)
  77 {
  78     path_list_node_t *new;
  79
  80     new = GdipAlloc(sizeof(path_list_node_t));
  81     if(!new)
  82         return NULL;
  83
  84     new->pt.X  = x;
  85     new->pt.Y  = y;
  86     new->type  = type;
  87     new->next  = node->next;
  88     node->next = new;
  89
  90     return new;
  91 }
  92
  93 /* returns element count */
  94 static INT path_list_count(path_list_node_t *node)
  95 {
  96     INT count = 1;
  97
  98     while((node = node->next))
  99         ++count;
 100
 101     return count;
 102 }
 103
 104 /* GdipFlattenPath helper */
 105 /*
 106  * Used to recursively flatten single Bezier curve
 107  * Parameters:
 108  *  - start   : pointer to start point node;
 109  *  - (x2, y2): first control point;
 110  *  - (x3, y3): second control point;
 111  *  - end     : pointer to end point node
 112  *  - flatness: admissible error of linear approximation.
 113  *
 114  * Return value:
 115  *  TRUE : success
 116  *  FALSE: out of memory
 117  *
 118  * TODO: used quality criteria should be revised to match native as
 119  *       closer as possible.
 120  */
 121 static BOOL flatten_bezier(path_list_node_t *start, REAL x2, REAL y2, REAL x3, REAL y3,
 122                            path_list_node_t *end, REAL flatness)
 123 {
 124     /* this 5 middle points with start/end define to half-curves */
 125     GpPointF mp[5];
 126     GpPointF pt, pt_st;
 127     path_list_node_t *node;
 128
 129     /* calculate bezier curve middle points == new control points */
 130     mp[0].X = (start->pt.X + x2) / 2.0;
 131     mp[0].Y = (start->pt.Y + y2) / 2.0;
 132     /* middle point between control points */
 133     pt.X = (x2 + x3) / 2.0;
 134     pt.Y = (y2 + y3) / 2.0;
 135     mp[1].X = (mp[0].X + pt.X) / 2.0;
 136     mp[1].Y = (mp[0].Y + pt.Y) / 2.0;
 137     mp[4].X = (end->pt.X + x3) / 2.0;
 138     mp[4].Y = (end->pt.Y + y3) / 2.0;
 139     mp[3].X = (mp[4].X + pt.X) / 2.0;
 140     mp[3].Y = (mp[4].Y + pt.Y) / 2.0;
 141
 142     mp[2].X = (mp[1].X + mp[3].X) / 2.0;
 143     mp[2].Y = (mp[1].Y + mp[3].Y) / 2.0;
 144
 145     pt = end->pt;
 146     pt_st = start->pt;
 147     /* check flatness as a half of distance between middle point and a linearized path */
 148     if(fabs(((pt.Y - pt_st.Y)*mp[2].X + (pt_st.X - pt.X)*mp[2].Y +
 149         (pt_st.Y*pt.X - pt_st.X*pt.Y))) <=
 150         (0.5 * flatness*sqrtf((powf(pt.Y - pt_st.Y, 2.0) + powf(pt_st.X - pt.X, 2.0))))){
 151         return TRUE;
 152     }
 153     else
 154         /* add a middle point */
 155         if(!(node = add_path_list_node(start, mp[2].X, mp[2].Y, PathPointTypeLine)))
 156             return FALSE;
 157
 158     /* do the same with halfs */
 159     flatten_bezier(start, mp[0].X, mp[0].Y, mp[1].X, mp[1].Y, node, flatness);
 160     flatten_bezier(node,  mp[3].X, mp[3].Y, mp[4].X, mp[4].Y, end,  flatness);
 161
 162     return TRUE;
 163 }
 164
 165 GpStatus WINGDIPAPI GdipAddPathArc(GpPath *path, REAL x1, REAL y1, REAL x2,
 166     REAL y2, REAL startAngle, REAL sweepAngle)
 167 {
 168     INT count, old_count, i;
 169
 170     TRACE("(%p, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f)\n",
 171           path, x1, y1, x2, y2, startAngle, sweepAngle);
 172
 173     if(!path)
 174         return InvalidParameter;
 175
 176     count = arc2polybezier(NULL, x1, y1, x2, y2, startAngle, sweepAngle);
 177
 178     if(count == 0)
 179         return Ok;
 180     if(!lengthen_path(path, count))
 181         return OutOfMemory;
 182
 183     old_count = path->pathdata.Count;
 184     arc2polybezier(&path->pathdata.Points[old_count], x1, y1, x2, y2,
 185                    startAngle, sweepAngle);
 186
 187     for(i = 0; i < count; i++){
 188         path->pathdata.Types[old_count + i] = PathPointTypeBezier;
 189     }
 190
 191     path->pathdata.Types[old_count] =
 192         (path->newfigure ? PathPointTypeStart : PathPointTypeLine);
 193     path->newfigure = FALSE;
 194     path->pathdata.Count += count;
 195
 196     return Ok;
 197 }
 198
 199 GpStatus WINGDIPAPI GdipAddPathArcI(GpPath *path, INT x1, INT y1, INT x2,
 200    INT y2, REAL startAngle, REAL sweepAngle)
 201 {
 202     TRACE("(%p, %d, %d, %d, %d, %.2f, %.2f)\n",
 203           path, x1, y1, x2, y2, startAngle, sweepAngle);
 204
 205     return GdipAddPathArc(path,(REAL)x1,(REAL)y1,(REAL)x2,(REAL)y2,startAngle,sweepAngle);
 206 }
 207
 208 GpStatus WINGDIPAPI GdipAddPathBezier(GpPath *path, REAL x1, REAL y1, REAL x2,
 209     REAL y2, REAL x3, REAL y3, REAL x4, REAL y4)
 210 {
 211     INT old_count;
 212
 213     TRACE("(%p, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f)\n",
 214           path, x1, y1, x2, y2, x3, y3, x4, y4);
 215
 216     if(!path)
 217         return InvalidParameter;
 218
 219     if(!lengthen_path(path, 4))
 220         return OutOfMemory;
 221
 222     old_count = path->pathdata.Count;
 223
 224     path->pathdata.Points[old_count].X = x1;
 225     path->pathdata.Points[old_count].Y = y1;
 226     path->pathdata.Points[old_count + 1].X = x2;
 227     path->pathdata.Points[old_count + 1].Y = y2;
 228     path->pathdata.Points[old_count + 2].X = x3;
 229     path->pathdata.Points[old_count + 2].Y = y3;
 230     path->pathdata.Points[old_count + 3].X = x4;
 231     path->pathdata.Points[old_count + 3].Y = y4;
 232
 233     path->pathdata.Types[old_count] =
 234         (path->newfigure ? PathPointTypeStart : PathPointTypeLine);
 235     path->pathdata.Types[old_count + 1] = PathPointTypeBezier;
 236     path->pathdata.Types[old_count + 2] = PathPointTypeBezier;
 237     path->pathdata.Types[old_count + 3] = PathPointTypeBezier;
 238
 239     path->newfigure = FALSE;
 240     path->pathdata.Count += 4;
 241
 242     return Ok;
 243 }
 244
 245 GpStatus WINGDIPAPI GdipAddPathBezierI(GpPath *path, INT x1, INT y1, INT x2,
 246     INT y2, INT x3, INT y3, INT x4, INT y4)
 247 {
 248     TRACE("(%p, %d, %d, %d, %d, %d, %d, %d, %d)\n",
 249           path, x1, y1, x2, y2, x3, y3, x4, y4);
 250
 251     return GdipAddPathBezier(path,(REAL)x1,(REAL)y1,(REAL)x2,(REAL)y2,(REAL)x3,(REAL)y3,
 252                                   (REAL)x4,(REAL)y4);
 253 }
 254
 255 GpStatus WINGDIPAPI GdipAddPathBeziers(GpPath *path, GDIPCONST GpPointF *points,
 256     INT count)
 257 {
 258     INT i, old_count;
 259
 260     TRACE("(%p, %p, %d)\n", path, points, count);
 261
 262     if(!path || !points || ((count - 1) % 3))
 263         return InvalidParameter;
 264
 265     if(!lengthen_path(path, count))
 266         return OutOfMemory;
 267
 268     old_count = path->pathdata.Count;
 269
 270     for(i = 0; i < count; i++){
 271         path->pathdata.Points[old_count + i].X = points[i].X;
 272         path->pathdata.Points[old_count + i].Y = points[i].Y;
 273         path->pathdata.Types[old_count + i] = PathPointTypeBezier;
 274     }
 275
 276     path->pathdata.Types[old_count] =
 277         (path->newfigure ? PathPointTypeStart : PathPointTypeLine);
 278     path->newfigure = FALSE;
 279     path->pathdata.Count += count;
 280
 281     return Ok;
 282 }
 283
 284 GpStatus WINGDIPAPI GdipAddPathBeziersI(GpPath *path, GDIPCONST GpPoint *points,
 285     INT count)
 286 {
 287     GpPointF *ptsF;
 288     GpStatus ret;
 289     INT i;
 290
 291     TRACE("(%p, %p, %d)\n", path, points, count);
 292
 293     if(!points || ((count - 1) % 3))
 294         return InvalidParameter;
 295
 296     ptsF = GdipAlloc(sizeof(GpPointF) * count);
 297     if(!ptsF)
 298         return OutOfMemory;
 299
 300     for(i = 0; i < count; i++){
 301         ptsF[i].X = (REAL)points[i].X;
 302         ptsF[i].Y = (REAL)points[i].Y;
 303     }
 304
 305     ret = GdipAddPathBeziers(path, ptsF, count);
 306     GdipFree(ptsF);
 307
 308     return ret;
 309 }
 310
 311 GpStatus WINGDIPAPI GdipAddPathClosedCurve(GpPath *path, GDIPCONST GpPointF *points,
 312     INT count)
 313 {
 314     TRACE("(%p, %p, %d)\n", path, points, count);
 315
 316     return GdipAddPathClosedCurve2(path, points, count, 1.0);
 317 }
 318
 319 GpStatus WINGDIPAPI GdipAddPathClosedCurveI(GpPath *path, GDIPCONST GpPoint *points,
 320     INT count)
 321 {
 322     TRACE("(%p, %p, %d)\n", path, points, count);
 323
 324     return GdipAddPathClosedCurve2I(path, points, count, 1.0);
 325 }
 326
 327 GpStatus WINGDIPAPI GdipAddPathClosedCurve2(GpPath *path, GDIPCONST GpPointF *points,
 328     INT count, REAL tension)
 329 {
 330     INT i, len_pt = (count + 1)*3-2;
 331     GpPointF *pt;
 332     GpPointF *pts;
 333     REAL x1, x2, y1, y2;
 334     GpStatus stat;
 335
 336     TRACE("(%p, %p, %d, %.2f)\n", path, points, count, tension);
 337
 338     if(!path || !points || count <= 1)
 339         return InvalidParameter;
 340
 341     pt = GdipAlloc(len_pt * sizeof(GpPointF));
 342     pts = GdipAlloc((count + 1)*sizeof(GpPointF));
 343     if(!pt || !pts){
 344         GdipFree(pt);
 345         GdipFree(pts);
 346         return OutOfMemory;
 347     }
 348
 349     /* copy source points to extend with the last one */
 350     memcpy(pts, points, sizeof(GpPointF)*count);
 351     pts[count] = pts[0];
 352
 353     tension = tension * TENSION_CONST;
 354
 355     for(i = 0; i < count-1; i++){
 356         calc_curve_bezier(&(pts[i]), tension, &x1, &y1, &x2, &y2);
 357
 358         pt[3*i+2].X = x1;
 359         pt[3*i+2].Y = y1;
 360         pt[3*i+3].X = pts[i+1].X;
 361         pt[3*i+3].Y = pts[i+1].Y;
 362         pt[3*i+4].X = x2;
 363         pt[3*i+4].Y = y2;
 364     }
 365
 366     /* points [len_pt-2] and [0] are calculated
 367        separetely to connect splines properly */
 368     pts[0] = points[count-1];
 369     pts[1] = points[0]; /* equals to start and end of a resulting path */
 370     pts[2] = points[1];
 371
 372     calc_curve_bezier(pts, tension, &x1, &y1, &x2, &y2);
 373     pt[len_pt-2].X = x1;
 374     pt[len_pt-2].Y = y1;
 375     pt[0].X = pts[1].X;
 376     pt[0].Y = pts[1].Y;
 377     pt[1].X = x2;
 378     pt[1].Y = y2;
 379     /* close path */
 380     pt[len_pt-1].X = pt[0].X;
 381     pt[len_pt-1].Y = pt[0].Y;
 382
 383     stat = GdipAddPathBeziers(path, pt, len_pt);
 384
 385     /* close figure */
 386     if(stat == Ok){
 387         INT count = path->pathdata.Count;
 388         path->pathdata.Types[count - 1] |= PathPointTypeCloseSubpath;
 389         path->newfigure = TRUE;
 390     }
 391
 392     GdipFree(pts);
 393     GdipFree(pt);
 394
 395     return stat;
 396 }
 397
 398 GpStatus WINGDIPAPI GdipAddPathClosedCurve2I(GpPath *path, GDIPCONST GpPoint *points,
 399     INT count, REAL tension)
 400 {
 401     GpPointF *ptf;
 402     INT i;
 403     GpStatus stat;
 404
 405     TRACE("(%p, %p, %d, %.2f)\n", path, points, count, tension);
 406
 407     if(!path || !points || count <= 1)
 408         return InvalidParameter;
 409
 410     ptf = GdipAlloc(sizeof(GpPointF)*count);
 411     if(!ptf)
 412         return OutOfMemory;
 413
 414     for(i = 0; i < count; i++){
 415         ptf[i].X = (REAL)points[i].X;
 416         ptf[i].Y = (REAL)points[i].Y;
 417     }
 418
 419     stat = GdipAddPathClosedCurve2(path, ptf, count, tension);
 420
 421     GdipFree(ptf);
 422
 423     return stat;
 424 }
 425
 426 GpStatus WINGDIPAPI GdipAddPathCurve(GpPath *path, GDIPCONST GpPointF *points, INT count)
 427 {
 428     TRACE("(%p, %p, %d)\n", path, points, count);
 429
 430     if(!path || !points || count <= 1)
 431         return InvalidParameter;
 432
 433     return GdipAddPathCurve2(path, points, count, 1.0);
 434 }
 435
 436 GpStatus WINGDIPAPI GdipAddPathCurveI(GpPath *path, GDIPCONST GpPoint *points, INT count)
 437 {
 438     TRACE("(%p, %p, %d)\n", path, points, count);
 439
 440     if(!path || !points || count <= 1)
 441         return InvalidParameter;
 442
 443     return GdipAddPathCurve2I(path, points, count, 1.0);
 444 }
 445
 446 GpStatus WINGDIPAPI GdipAddPathCurve2(GpPath *path, GDIPCONST GpPointF *points, INT count,
 447     REAL tension)
 448 {
 449     INT i, len_pt = count*3-2;
 450     GpPointF *pt;
 451     REAL x1, x2, y1, y2;
 452     GpStatus stat;
 453
 454     TRACE("(%p, %p, %d, %.2f)\n", path, points, count, tension);
 455
 456     if(!path || !points || count <= 1)
 457         return InvalidParameter;
 458
 459     pt = GdipAlloc(len_pt * sizeof(GpPointF));
 460     if(!pt)
 461         return OutOfMemory;
 462
 463     tension = tension * TENSION_CONST;
 464
 465     calc_curve_bezier_endp(points[0].X, points[0].Y, points[1].X, points[1].Y,
 466         tension, &x1, &y1);
 467
 468     pt[0].X = points[0].X;
 469     pt[0].Y = points[0].Y;
 470     pt[1].X = x1;
 471     pt[1].Y = y1;
 472
 473     for(i = 0; i < count-2; i++){
 474         calc_curve_bezier(&(points[i]), tension, &x1, &y1, &x2, &y2);
 475
 476         pt[3*i+2].X = x1;
 477         pt[3*i+2].Y = y1;
 478         pt[3*i+3].X = points[i+1].X;
 479         pt[3*i+3].Y = points[i+1].Y;
 480         pt[3*i+4].X = x2;
 481         pt[3*i+4].Y = y2;
 482     }
 483
 484     calc_curve_bezier_endp(points[count-1].X, points[count-1].Y,
 485         points[count-2].X, points[count-2].Y, tension, &x1, &y1);
 486
 487     pt[len_pt-2].X = x1;
 488     pt[len_pt-2].Y = y1;
 489     pt[len_pt-1].X = points[count-1].X;
 490     pt[len_pt-1].Y = points[count-1].Y;
 491
 492     stat = GdipAddPathBeziers(path, pt, len_pt);
 493
 494     GdipFree(pt);
 495
 496     return stat;
 497 }
 498
 499 GpStatus WINGDIPAPI GdipAddPathCurve2I(GpPath *path, GDIPCONST GpPoint *points,
 500     INT count, REAL tension)
 501 {
 502     GpPointF *ptf;
 503     INT i;
 504     GpStatus stat;
 505
 506     TRACE("(%p, %p, %d, %.2f)\n", path, points, count, tension);
 507
 508     if(!path || !points || count <= 1)
 509         return InvalidParameter;
 510
 511     ptf = GdipAlloc(sizeof(GpPointF)*count);
 512     if(!ptf)
 513         return OutOfMemory;
 514
 515     for(i = 0; i < count; i++){
 516         ptf[i].X = (REAL)points[i].X;
 517         ptf[i].Y = (REAL)points[i].Y;
 518     }
 519
 520     stat = GdipAddPathCurve2(path, ptf, count, tension);
 521
 522     GdipFree(ptf);
 523
 524     return stat;
 525 }
 526
 527 GpStatus WINGDIPAPI GdipAddPathCurve3(GpPath *path, GDIPCONST GpPointF *points,
 528     INT count, INT offset, INT nseg, REAL tension)
 529 {
 530     TRACE("(%p, %p, %d, %d, %d, %.2f)\n", path, points, count, offset, nseg, tension);
 531
 532     if(!path || !points || offset + 1 >= count || count - offset < nseg + 1)
 533         return InvalidParameter;
 534
 535     return GdipAddPathCurve2(path, &points[offset], nseg + 1, tension);
 536 }
 537
 538 GpStatus WINGDIPAPI GdipAddPathCurve3I(GpPath *path, GDIPCONST GpPoint *points,
 539     INT count, INT offset, INT nseg, REAL tension)
 540 {
 541     TRACE("(%p, %p, %d, %d, %d, %.2f)\n", path, points, count, offset, nseg, tension);
 542
 543     if(!path || !points || offset + 1 >= count || count - offset < nseg + 1)
 544         return InvalidParameter;
 545
 546     return GdipAddPathCurve2I(path, &points[offset], nseg + 1, tension);
 547 }
 548
 549 GpStatus WINGDIPAPI GdipAddPathEllipse(GpPath *path, REAL x, REAL y, REAL width,
 550     REAL height)
 551 {
 552     INT old_count, numpts;
 553
 554     TRACE("(%p, %.2f, %.2f, %.2f, %.2f)\n", path, x, y, width, height);
 555
 556     if(!path)
 557         return InvalidParameter;
 558
 559     if(!lengthen_path(path, MAX_ARC_PTS))
 560         return OutOfMemory;
 561
 562     old_count = path->pathdata.Count;
 563     if((numpts = arc2polybezier(&path->pathdata.Points[old_count],  x, y, width,
 564                                height, 0.0, 360.0)) != MAX_ARC_PTS){
 565         ERR("expected %d points but got %d\n", MAX_ARC_PTS, numpts);
 566         return GenericError;
 567     }
 568
 569     memset(&path->pathdata.Types[old_count + 1], PathPointTypeBezier,
 570            MAX_ARC_PTS - 1);
 571
 572     /* An ellipse is an intrinsic figure (always is its own subpath). */
 573     path->pathdata.Types[old_count] = PathPointTypeStart;
 574     path->pathdata.Types[old_count + MAX_ARC_PTS - 1] |= PathPointTypeCloseSubpath;
 575     path->newfigure = TRUE;
 576     path->pathdata.Count += MAX_ARC_PTS;
 577
 578     return Ok;
 579 }
 580
 581 GpStatus WINGDIPAPI GdipAddPathEllipseI(GpPath *path, INT x, INT y, INT width,
 582     INT height)
 583 {
 584     TRACE("(%p, %d, %d, %d, %d)\n", path, x, y, width, height);
 585
 586     return GdipAddPathEllipse(path,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
 587 }
 588
 589 GpStatus WINGDIPAPI GdipAddPathLine2(GpPath *path, GDIPCONST GpPointF *points,
 590     INT count)
 591 {
 592     INT i, old_count;
 593
 594     TRACE("(%p, %p, %d)\n", path, points, count);
 595
 596     if(!path || !points)
 597         return InvalidParameter;
 598
 599     if(!lengthen_path(path, count))
 600         return OutOfMemory;
 601
 602     old_count = path->pathdata.Count;
 603
 604     for(i = 0; i < count; i++){
 605         path->pathdata.Points[old_count + i].X = points[i].X;
 606         path->pathdata.Points[old_count + i].Y = points[i].Y;
 607         path->pathdata.Types[old_count + i] = PathPointTypeLine;
 608     }
 609
 610     if(path->newfigure){
 611         path->pathdata.Types[old_count] = PathPointTypeStart;
 612         path->newfigure = FALSE;
 613     }
 614
 615     path->pathdata.Count += count;
 616
 617     return Ok;
 618 }
 619
 620 GpStatus WINGDIPAPI GdipAddPathLine2I(GpPath *path, GDIPCONST GpPoint *points, INT count)
 621 {
 622     GpPointF *pointsF;
 623     INT i;
 624     GpStatus stat;
 625
 626     TRACE("(%p, %p, %d)\n", path, points, count);
 627
 628     if(count <= 0)
 629         return InvalidParameter;
 630
 631     pointsF = GdipAlloc(sizeof(GpPointF) * count);
 632     if(!pointsF)    return OutOfMemory;
 633
 634     for(i = 0;i < count; i++){
 635         pointsF[i].X = (REAL)points[i].X;
 636         pointsF[i].Y = (REAL)points[i].Y;
 637     }
 638
 639     stat = GdipAddPathLine2(path, pointsF, count);
 640
 641     GdipFree(pointsF);
 642
 643     return stat;
 644 }
 645
 646 GpStatus WINGDIPAPI GdipAddPathLine(GpPath *path, REAL x1, REAL y1, REAL x2, REAL y2)
 647 {
 648     INT old_count;
 649
 650     TRACE("(%p, %.2f, %.2f, %.2f, %.2f)\n", path, x1, y1, x2, y2);
 651
 652     if(!path)
 653         return InvalidParameter;
 654
 655     if(!lengthen_path(path, 2))
 656         return OutOfMemory;
 657
 658     old_count = path->pathdata.Count;
 659
 660     path->pathdata.Points[old_count].X = x1;
 661     path->pathdata.Points[old_count].Y = y1;
 662     path->pathdata.Points[old_count + 1].X = x2;
 663     path->pathdata.Points[old_count + 1].Y = y2;
 664
 665     path->pathdata.Types[old_count] =
 666         (path->newfigure ? PathPointTypeStart : PathPointTypeLine);
 667     path->pathdata.Types[old_count + 1] = PathPointTypeLine;
 668
 669     path->newfigure = FALSE;
 670     path->pathdata.Count += 2;
 671
 672     return Ok;
 673 }
 674
 675 GpStatus WINGDIPAPI GdipAddPathLineI(GpPath *path, INT x1, INT y1, INT x2, INT y2)
 676 {
 677     TRACE("(%p, %d, %d, %d, %d)\n", path, x1, y1, x2, y2);
 678
 679     return GdipAddPathLine(path, (REAL)x1, (REAL)y1, (REAL)x2, (REAL)y2);
 680 }
 681
 682 GpStatus WINGDIPAPI GdipAddPathPath(GpPath *path, GDIPCONST GpPath* addingPath,
 683     BOOL connect)
 684 {
 685     INT old_count, count;
 686
 687     TRACE("(%p, %p, %d)\n", path, addingPath, connect);
 688
 689     if(!path || !addingPath)
 690         return InvalidParameter;
 691
 692     old_count = path->pathdata.Count;
 693     count = addingPath->pathdata.Count;
 694
 695     if(!lengthen_path(path, count))
 696         return OutOfMemory;
 697
 698     memcpy(&path->pathdata.Points[old_count], addingPath->pathdata.Points,
 699            count * sizeof(GpPointF));
 700     memcpy(&path->pathdata.Types[old_count], addingPath->pathdata.Types, count);
 701
 702     if(path->newfigure || !connect)
 703         path->pathdata.Types[old_count] = PathPointTypeStart;
 704     else
 705         path->pathdata.Types[old_count] = PathPointTypeLine;
 706
 707     path->newfigure = FALSE;
 708     path->pathdata.Count += count;
 709
 710     return Ok;
 711 }
 712
 713 GpStatus WINGDIPAPI GdipAddPathPie(GpPath *path, REAL x, REAL y, REAL width, REAL height,
 714     REAL startAngle, REAL sweepAngle)
 715 {
 716     GpPointF *ptf;
 717     GpStatus status;
 718     INT i, count;
 719
 720     TRACE("(%p, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f)\n",
 721           path, x, y, width, height, startAngle, sweepAngle);
 722
 723     if(!path)
 724         return InvalidParameter;
 725
 726     /* on zero width/height only start point added */
 727     if(width <= 1e-7 || height <= 1e-7){
 728         if(!lengthen_path(path, 1))
 729             return OutOfMemory;
 730         path->pathdata.Points[0].X = x + width  / 2.0;
 731         path->pathdata.Points[0].Y = y + height / 2.0;
 732         path->pathdata.Types[0] = PathPointTypeStart | PathPointTypeCloseSubpath;
 733         path->pathdata.Count = 1;
 734         return InvalidParameter;
 735     }
 736
 737     count = arc2polybezier(NULL, x, y, width, height, startAngle, sweepAngle);
 738
 739     if(count == 0)
 740         return Ok;
 741
 742     ptf = GdipAlloc(sizeof(GpPointF)*count);
 743     if(!ptf)
 744         return OutOfMemory;
 745
 746     arc2polybezier(ptf, x, y, width, height, startAngle, sweepAngle);
 747
 748     status = GdipAddPathLine(path, (width - x)/2, (height - y)/2, ptf[0].X, ptf[0].Y);
 749     if(status != Ok){
 750         GdipFree(ptf);
 751         return status;
 752     }
 753     /* one spline is already added as a line endpoint */
 754     if(!lengthen_path(path, count - 1)){
 755         GdipFree(ptf);
 756         return OutOfMemory;
 757     }
 758
 759     memcpy(&(path->pathdata.Points[path->pathdata.Count]), &(ptf[1]),sizeof(GpPointF)*(count-1));
 760     for(i = 0; i < count-1; i++)
 761         path->pathdata.Types[path->pathdata.Count+i] = PathPointTypeBezier;
 762
 763     path->pathdata.Count += count-1;
 764
 765     GdipClosePathFigure(path);
 766
 767     GdipFree(ptf);
 768
 769     return status;
 770 }
 771
 772 GpStatus WINGDIPAPI GdipAddPathPieI(GpPath *path, INT x, INT y, INT width, INT height,
 773     REAL startAngle, REAL sweepAngle)
 774 {
 775     TRACE("(%p, %d, %d, %d, %d, %.2f, %.2f)\n",
 776           path, x, y, width, height, startAngle, sweepAngle);
 777
 778     return GdipAddPathPieI(path, (REAL)x, (REAL)y, (REAL)width, (REAL)height, startAngle, sweepAngle);
 779 }
 780
 781 GpStatus WINGDIPAPI GdipAddPathPolygon(GpPath *path, GDIPCONST GpPointF *points, INT count)
 782 {
 783     INT old_count;
 784
 785     TRACE("(%p, %p, %d)\n", path, points, count);
 786
 787     if(!path || !points || count < 3)
 788         return InvalidParameter;
 789
 790     if(!lengthen_path(path, count))
 791         return OutOfMemory;
 792
 793     old_count = path->pathdata.Count;
 794
 795     memcpy(&path->pathdata.Points[old_count], points, count*sizeof(GpPointF));
 796     memset(&path->pathdata.Types[old_count + 1], PathPointTypeLine, count - 1);
 797
 798     /* A polygon is an intrinsic figure */
 799     path->pathdata.Types[old_count] = PathPointTypeStart;
 800     path->pathdata.Types[old_count + count - 1] |= PathPointTypeCloseSubpath;
 801     path->newfigure = TRUE;
 802     path->pathdata.Count += count;
 803
 804     return Ok;
 805 }
 806
 807 GpStatus WINGDIPAPI GdipAddPathPolygonI(GpPath *path, GDIPCONST GpPoint *points, INT count)
 808 {
 809     GpPointF *ptf;
 810     GpStatus status;
 811     INT i;
 812
 813     TRACE("(%p, %p, %d)\n", path, points, count);
 814
 815     if(!points || count < 3)
 816         return InvalidParameter;
 817
 818     ptf = GdipAlloc(sizeof(GpPointF) * count);
 819     if(!ptf)
 820         return OutOfMemory;
 821
 822     for(i = 0; i < count; i++){
 823         ptf[i].X = (REAL)points[i].X;
 824         ptf[i].Y = (REAL)points[i].Y;
 825     }
 826
 827     status = GdipAddPathPolygon(path, ptf, count);
 828
 829     GdipFree(ptf);
 830
 831     return status;
 832 }
 833
 834 GpStatus WINGDIPAPI GdipClonePath(GpPath* path, GpPath **clone)
 835 {
 836     TRACE("(%p, %p)\n", path, clone);
 837
 838     if(!path || !clone)
 839         return InvalidParameter;
 840
 841     *clone = GdipAlloc(sizeof(GpPath));
 842     if(!*clone) return OutOfMemory;
 843
 844     **clone = *path;
 845
 846     (*clone)->pathdata.Points = GdipAlloc(path->datalen * sizeof(PointF));
 847     (*clone)->pathdata.Types = GdipAlloc(path->datalen);
 848     if(!(*clone)->pathdata.Points || !(*clone)->pathdata.Types){
 849         GdipFree(*clone);
 850         GdipFree((*clone)->pathdata.Points);
 851         GdipFree((*clone)->pathdata.Types);
 852         return OutOfMemory;
 853     }
 854
 855     memcpy((*clone)->pathdata.Points, path->pathdata.Points,
 856            path->datalen * sizeof(PointF));
 857     memcpy((*clone)->pathdata.Types, path->pathdata.Types, path->datalen);
 858
 859     return Ok;
 860 }
 861
 862 GpStatus WINGDIPAPI GdipClosePathFigure(GpPath* path)
 863 {
 864     TRACE("(%p)\n", path);
 865
 866     if(!path)
 867         return InvalidParameter;
 868
 869     if(path->pathdata.Count > 0){
 870         path->pathdata.Types[path->pathdata.Count - 1] |= PathPointTypeCloseSubpath;
 871         path->newfigure = TRUE;
 872     }
 873
 874     return Ok;
 875 }
 876
 877 GpStatus WINGDIPAPI GdipClosePathFigures(GpPath* path)
 878 {
 879     INT i;
 880
 881     TRACE("(%p)\n", path);
 882
 883     if(!path)
 884         return InvalidParameter;
 885
 886     for(i = 1; i < path->pathdata.Count; i++){
 887         if(path->pathdata.Types[i] == PathPointTypeStart)
 888             path->pathdata.Types[i-1] |= PathPointTypeCloseSubpath;
 889     }
 890
 891     path->newfigure = TRUE;
 892
 893     return Ok;
 894 }
 895
 896 GpStatus WINGDIPAPI GdipCreatePath(GpFillMode fill, GpPath **path)
 897 {
 898     TRACE("(%d, %p)\n", fill, path);
 899
 900     if(!path)
 901         return InvalidParameter;
 902
 903     *path = GdipAlloc(sizeof(GpPath));
 904     if(!*path)  return OutOfMemory;
 905
 906     (*path)->fill = fill;
 907     (*path)->newfigure = TRUE;
 908
 909     return Ok;
 910 }
 911
 912 GpStatus WINGDIPAPI GdipCreatePath2(GDIPCONST GpPointF* points,
 913     GDIPCONST BYTE* types, INT count, GpFillMode fill, GpPath **path)
 914 {
 915     TRACE("(%p, %p, %d, %d, %p)\n", points, types, count, fill, path);
 916
 917     if(!path)
 918         return InvalidParameter;
 919
 920     *path = GdipAlloc(sizeof(GpPath));
 921     if(!*path)  return OutOfMemory;
 922
 923     (*path)->pathdata.Points = GdipAlloc(count * sizeof(PointF));
 924     (*path)->pathdata.Types = GdipAlloc(count);
 925
 926     if(!(*path)->pathdata.Points || !(*path)->pathdata.Types){
 927         GdipFree((*path)->pathdata.Points);
 928         GdipFree((*path)->pathdata.Types);
 929         GdipFree(*path);
 930         return OutOfMemory;
 931     }
 932
 933     memcpy((*path)->pathdata.Points, points, count * sizeof(PointF));
 934     memcpy((*path)->pathdata.Types, types, count);
 935     (*path)->pathdata.Count = count;
 936     (*path)->datalen = count;
 937
 938     (*path)->fill = fill;
 939     (*path)->newfigure = TRUE;
 940
 941     return Ok;
 942 }
 943
 944 GpStatus WINGDIPAPI GdipCreatePath2I(GDIPCONST GpPoint* points,
 945     GDIPCONST BYTE* types, INT count, GpFillMode fill, GpPath **path)
 946 {
 947     GpPointF *ptF;
 948     GpStatus ret;
 949     INT i;
 950
 951     TRACE("(%p, %p, %d, %d, %p)\n", points, types, count, fill, path);
 952
 953     ptF = GdipAlloc(sizeof(GpPointF)*count);
 954
 955     for(i = 0;i < count; i++){
 956         ptF[i].X = (REAL)points[i].X;
 957         ptF[i].Y = (REAL)points[i].Y;
 958     }
 959
 960     ret = GdipCreatePath2(ptF, types, count, fill, path);
 961
 962     GdipFree(ptF);
 963
 964     return ret;
 965 }
 966
 967 GpStatus WINGDIPAPI GdipDeletePath(GpPath *path)
 968 {
 969     TRACE("(%p)\n", path);
 970
 971     if(!path)
 972         return InvalidParameter;
 973
 974     GdipFree(path->pathdata.Points);
 975     GdipFree(path->pathdata.Types);
 976     GdipFree(path);
 977
 978     return Ok;
 979 }
 980
 981 GpStatus WINGDIPAPI GdipFlattenPath(GpPath *path, GpMatrix* matrix, REAL flatness)
 982 {
 983     path_list_node_t *list, *node;
 984     GpPointF pt;
 985     INT i = 1;
 986     INT startidx = 0;
 987
 988     TRACE("(%p, %p, %.2f)\n", path, matrix, flatness);
 989
 990     if(!path)
 991         return InvalidParameter;
 992
 993     if(matrix){
 994         WARN("transformation not supported yet!\n");
 995         return NotImplemented;
 996     }
 997
 998     if(path->pathdata.Count == 0)
 999         return Ok;
1000
1001     pt = path->pathdata.Points[0];
1002     if(!init_path_list(&list, pt.X, pt.Y))
1003         return OutOfMemory;
1004
1005     node = list;
1006
1007     while(i < path->pathdata.Count){
1008
1009         BYTE type = path->pathdata.Types[i] & PathPointTypePathTypeMask;
1010         path_list_node_t *start;
1011
1012         pt = path->pathdata.Points[i];
1013
1014         /* save last start point index */
1015         if(type == PathPointTypeStart)
1016             startidx = i;
1017
1018         /* always add line points and start points */
1019         if((type == PathPointTypeStart) || (type == PathPointTypeLine)){
1020             if(!add_path_list_node(node, pt.X, pt.Y, path->pathdata.Types[i]))
1021                 goto memout;
1022
1023             node = node->next;
1024             ++i;
1025             continue;
1026         }
1027
1028         /* Bezier curve always stored as 4 points */
1029         if((path->pathdata.Types[i-1] & PathPointTypePathTypeMask) != PathPointTypeStart){
1030             type = (path->pathdata.Types[i] & ~PathPointTypePathTypeMask) | PathPointTypeLine;
1031             if(!add_path_list_node(node, pt.X, pt.Y, type))
1032                 goto memout;
1033
1034             node = node->next;
1035         }
1036
1037         /* test for closed figure */
1038         if(path->pathdata.Types[i+1] & PathPointTypeCloseSubpath){
1039             pt = path->pathdata.Points[startidx];
1040             ++i;
1041         }
1042         else
1043         {
1044             i += 2;
1045             pt = path->pathdata.Points[i];
1046         };
1047
1048         start = node;
1049         /* add Bezier end point */
1050         type = (path->pathdata.Types[i] & ~PathPointTypePathTypeMask) | PathPointTypeLine;
1051         if(!add_path_list_node(node, pt.X, pt.Y, type))
1052             goto memout;
1053         node = node->next;
1054
1055         /* flatten curve */
1056         if(!flatten_bezier(start, path->pathdata.Points[i-2].X, path->pathdata.Points[i-2].Y,
1057                                   path->pathdata.Points[i-1].X, path->pathdata.Points[i-1].Y,
1058                            node, flatness))
1059             goto memout;
1060
1061         ++i;
1062     }/* while */
1063
1064     /* store path data back */
1065     i = path_list_count(list);
1066     if(!lengthen_path(path, i))
1067         goto memout;
1068     path->pathdata.Count = i;
1069
1070     node = list;
1071     for(i = 0; i < path->pathdata.Count; i++){
1072         path->pathdata.Points[i] = node->pt;
1073         path->pathdata.Types[i]  = node->type;
1074         node = node->next;
1075     }
1076
1077     free_path_list(list);
1078     return Ok;
1079
1080 memout:
1081     free_path_list(list);
1082     return OutOfMemory;
1083 }
1084
1085 GpStatus WINGDIPAPI GdipGetPathData(GpPath *path, GpPathData* pathData)
1086 {
1087     TRACE("(%p, %p)\n", path, pathData);
1088
1089     if(!path || !pathData)
1090         return InvalidParameter;
1091
1092     /* Only copy data. pathData allocation/freeing controlled by wrapper class.
1093        Assumed that pathData is enough wide to get all data - controlled by wrapper too. */
1094     memcpy(pathData->Points, path->pathdata.Points, sizeof(PointF) * pathData->Count);
1095     memcpy(pathData->Types , path->pathdata.Types , pathData->Count);
1096
1097     return Ok;
1098 }
1099
1100 GpStatus WINGDIPAPI GdipGetPathFillMode(GpPath *path, GpFillMode *fillmode)
1101 {
1102     TRACE("(%p, %p)\n", path, fillmode);
1103
1104     if(!path || !fillmode)
1105         return InvalidParameter;
1106
1107     *fillmode = path->fill;
1108
1109     return Ok;
1110 }
1111
1112 GpStatus WINGDIPAPI GdipGetPathLastPoint(GpPath* path, GpPointF* lastPoint)
1113 {
1114     INT count;
1115
1116     TRACE("(%p, %p)\n", path, lastPoint);
1117
1118     if(!path || !lastPoint)
1119         return InvalidParameter;
1120
1121     count = path->pathdata.Count;
1122     if(count > 0)
1123         *lastPoint = path->pathdata.Points[count-1];
1124
1125     return Ok;
1126 }
1127
1128 GpStatus WINGDIPAPI GdipGetPathPoints(GpPath *path, GpPointF* points, INT count)
1129 {
1130     TRACE("(%p, %p, %d)\n", path, points, count);
1131
1132     if(!path)
1133         return InvalidParameter;
1134
1135     if(count < path->pathdata.Count)
1136         return InsufficientBuffer;
1137
1138     memcpy(points, path->pathdata.Points, path->pathdata.Count * sizeof(GpPointF));
1139
1140     return Ok;
1141 }
1142
1143 GpStatus WINGDIPAPI GdipGetPathPointsI(GpPath *path, GpPoint* points, INT count)
1144 {
1145     GpStatus ret;
1146     GpPointF *ptf;
1147     INT i;
1148
1149     TRACE("(%p, %p, %d)\n", path, points, count);
1150
1151     if(count <= 0)
1152         return InvalidParameter;
1153
1154     ptf = GdipAlloc(sizeof(GpPointF)*count);
1155     if(!ptf)    return OutOfMemory;
1156
1157     ret = GdipGetPathPoints(path,ptf,count);
1158     if(ret == Ok)
1159         for(i = 0;i < count;i++){
1160             points[i].X = roundr(ptf[i].X);
1161             points[i].Y = roundr(ptf[i].Y);
1162         };
1163     GdipFree(ptf);
1164
1165     return ret;
1166 }
1167
1168 GpStatus WINGDIPAPI GdipGetPathTypes(GpPath *path, BYTE* types, INT count)
1169 {
1170     TRACE("(%p, %p, %d)\n", path, types, count);
1171
1172     if(!path)
1173         return InvalidParameter;
1174
1175     if(count < path->pathdata.Count)
1176         return InsufficientBuffer;
1177
1178     memcpy(types, path->pathdata.Types, path->pathdata.Count);
1179
1180     return Ok;
1181 }
1182
1183 /* Windows expands the bounding box to the maximum possible bounding box
1184  * for a given pen.  For example, if a line join can extend past the point
1185  * it's joining by x units, the bounding box is extended by x units in every
1186  * direction (even though this is too conservative for most cases). */
1187 GpStatus WINGDIPAPI GdipGetPathWorldBounds(GpPath* path, GpRectF* bounds,
1188     GDIPCONST GpMatrix *matrix, GDIPCONST GpPen *pen)
1189 {
1190     GpPointF * points, temp_pts[4];
1191     INT count, i;
1192     REAL path_width = 1.0, width, height, temp, low_x, low_y, high_x, high_y;
1193
1194     TRACE("(%p, %p, %p, %p)\n", path, bounds, matrix, pen);
1195
1196     /* Matrix and pen can be null. */
1197     if(!path || !bounds)
1198         return InvalidParameter;
1199
1200     /* If path is empty just return. */
1201     count = path->pathdata.Count;
1202     if(count == 0){
1203         bounds->X = bounds->Y = bounds->Width = bounds->Height = 0.0;
1204         return Ok;
1205     }
1206
1207     points = path->pathdata.Points;
1208
1209     low_x = high_x = points[0].X;
1210     low_y = high_y = points[0].Y;
1211
1212     for(i = 1; i < count; i++){
1213         low_x = min(low_x, points[i].X);
1214         low_y = min(low_y, points[i].Y);
1215         high_x = max(high_x, points[i].X);
1216         high_y = max(high_y, points[i].Y);
1217     }
1218
1219     width = high_x - low_x;
1220     height = high_y - low_y;
1221
1222     /* This looks unusual but it's the only way I can imitate windows. */
1223     if(matrix){
1224         temp_pts[0].X = low_x;
1225         temp_pts[0].Y = low_y;
1226         temp_pts[1].X = low_x;
1227         temp_pts[1].Y = high_y;
1228         temp_pts[2].X = high_x;
1229         temp_pts[2].Y = high_y;
1230         temp_pts[3].X = high_x;
1231         temp_pts[3].Y = low_y;
1232
1233         GdipTransformMatrixPoints((GpMatrix*)matrix, temp_pts, 4);
1234         low_x = temp_pts[0].X;
1235         low_y = temp_pts[0].Y;
1236
1237         for(i = 1; i < 4; i++){
1238             low_x = min(low_x, temp_pts[i].X);
1239             low_y = min(low_y, temp_pts[i].Y);
1240         }
1241
1242         temp = width;
1243         width = height * fabs(matrix->matrix[2]) + width * fabs(matrix->matrix[0]);
1244         height = height * fabs(matrix->matrix[3]) + temp * fabs(matrix->matrix[1]);
1245     }
1246
1247     if(pen){
1248         path_width = pen->width / 2.0;
1249
1250         if(count > 2)
1251             path_width = max(path_width,  pen->width * pen->miterlimit / 2.0);
1252         /* FIXME: this should probably also check for the startcap */
1253         if(pen->endcap & LineCapNoAnchor)
1254             path_width = max(path_width,  pen->width * 2.2);
1255
1256         low_x -= path_width;
1257         low_y -= path_width;
1258         width += 2.0 * path_width;
1259         height += 2.0 * path_width;
1260     }
1261
1262     bounds->X = low_x;
1263     bounds->Y = low_y;
1264     bounds->Width = width;
1265     bounds->Height = height;
1266
1267     return Ok;
1268 }
1269
1270 GpStatus WINGDIPAPI GdipGetPathWorldBoundsI(GpPath* path, GpRect* bounds,
1271     GDIPCONST GpMatrix *matrix, GDIPCONST GpPen *pen)
1272 {
1273     GpStatus ret;
1274     GpRectF boundsF;
1275
1276     TRACE("(%p, %p, %p, %p)\n", path, bounds, matrix, pen);
1277
1278     ret = GdipGetPathWorldBounds(path,&boundsF,matrix,pen);
1279
1280     if(ret == Ok){
1281         bounds->X      = roundr(boundsF.X);
1282         bounds->Y      = roundr(boundsF.Y);
1283         bounds->Width  = roundr(boundsF.Width);
1284         bounds->Height = roundr(boundsF.Height);
1285     }
1286
1287     return ret;
1288 }
1289
1290 GpStatus WINGDIPAPI GdipGetPointCount(GpPath *path, INT *count)
1291 {
1292     TRACE("(%p, %p)\n", path, count);
1293
1294     if(!path)
1295         return InvalidParameter;
1296
1297     *count = path->pathdata.Count;
1298
1299     return Ok;
1300 }
1301
1302 GpStatus WINGDIPAPI GdipReversePath(GpPath* path)
1303 {
1304     INT i, count;
1305     INT start = 0; /* position in reversed path */
1306     GpPathData revpath;
1307
1308     TRACE("(%p)\n", path);
1309
1310     if(!path)
1311         return InvalidParameter;
1312
1313     count = path->pathdata.Count;
1314
1315     if(count == 0) return Ok;
1316
1317     revpath.Points = GdipAlloc(sizeof(GpPointF)*count);
1318     revpath.Types  = GdipAlloc(sizeof(BYTE)*count);
1319     revpath.Count  = count;
1320     if(!revpath.Points || !revpath.Types){
1321         GdipFree(revpath.Points);
1322         GdipFree(revpath.Types);
1323         return OutOfMemory;
1324     }
1325
1326     for(i = 0; i < count; i++){
1327
1328         /* find next start point */
1329         if(path->pathdata.Types[count-i-1] == PathPointTypeStart){
1330             INT j;
1331             for(j = start; j <= i; j++){
1332                 revpath.Points[j] = path->pathdata.Points[count-j-1];
1333                 revpath.Types[j] = path->pathdata.Types[count-j-1];
1334             }
1335             /* mark start point */
1336             revpath.Types[start] = PathPointTypeStart;
1337             /* set 'figure' endpoint type */
1338             if(i-start > 1){
1339                 revpath.Types[i] = path->pathdata.Types[count-start-1] & ~PathPointTypePathTypeMask;
1340                 revpath.Types[i] |= revpath.Types[i-1];
1341             }
1342             else
1343                 revpath.Types[i] = path->pathdata.Types[start];
1344
1345             start = i+1;
1346         }
1347     }
1348
1349     memcpy(path->pathdata.Points, revpath.Points, sizeof(GpPointF)*count);
1350     memcpy(path->pathdata.Types,  revpath.Types,  sizeof(BYTE)*count);
1351
1352     GdipFree(revpath.Points);
1353     GdipFree(revpath.Types);
1354
1355     return Ok;
1356 }
1357
1358 GpStatus WINGDIPAPI GdipIsOutlineVisiblePathPointI(GpPath* path, INT x, INT y,
1359     GpPen *pen, GpGraphics *graphics, BOOL *result)
1360 {
1361     TRACE("(%p, %d, %d, %p, %p, %p)\n", path, x, y, pen, graphics, result);
1362
1363     return GdipIsOutlineVisiblePathPoint(path, x, y, pen, graphics, result);
1364 }
1365
1366 GpStatus WINGDIPAPI GdipIsOutlineVisiblePathPoint(GpPath* path, REAL x, REAL y,
1367     GpPen *pen, GpGraphics *graphics, BOOL *result)
1368 {
1369     static int calls;
1370
1371     if(!path || !pen)
1372         return InvalidParameter;
1373
1374     if(!(calls++))
1375         FIXME("not implemented\n");
1376
1377     return NotImplemented;
1378 }
1379
1380 GpStatus WINGDIPAPI GdipIsVisiblePathPointI(GpPath* path, INT x, INT y, GpGraphics *graphics, BOOL *result)
1381 {
1382     TRACE("(%p, %d, %d, %p, %p)\n", path, x, y, graphics, result);
1383
1384     return GdipIsVisiblePathPoint(path, x, y, graphics, result);
1385 }
1386
1387 /*****************************************************************************
1388  * GdipIsVisiblePathPoint [GDIPLUS.@]
1389  */
1390 GpStatus WINGDIPAPI GdipIsVisiblePathPoint(GpPath* path, REAL x, REAL y, GpGraphics *graphics, BOOL *result)
1391 {
1392     GpRegion *region;
1393     HRGN hrgn;
1394     GpStatus status;
1395
1396     if(!path || !result) return InvalidParameter;
1397
1398     status = GdipCreateRegionPath(path, &region);
1399     if(status != Ok)
1400         return status;
1401
1402     status = GdipGetRegionHRgn(region, graphics, &hrgn);
1403     if(status != Ok){
1404         GdipDeleteRegion(region);
1405         return status;
1406     }
1407
1408     *result = PtInRegion(hrgn, roundr(x), roundr(y));
1409
1410     DeleteObject(hrgn);
1411     GdipDeleteRegion(region);
1412
1413     return Ok;
1414 }
1415
1416 GpStatus WINGDIPAPI GdipStartPathFigure(GpPath *path)
1417 {
1418     TRACE("(%p)\n", path);
1419
1420     if(!path)
1421         return InvalidParameter;
1422
1423     path->newfigure = TRUE;
1424
1425     return Ok;
1426 }
1427
1428 GpStatus WINGDIPAPI GdipResetPath(GpPath *path)
1429 {
1430     TRACE("(%p)\n", path);
1431
1432     if(!path)
1433         return InvalidParameter;
1434
1435     path->pathdata.Count = 0;
1436     path->newfigure = TRUE;
1437     path->fill = FillModeAlternate;
1438
1439     return Ok;
1440 }
1441
1442 GpStatus WINGDIPAPI GdipSetPathFillMode(GpPath *path, GpFillMode fill)
1443 {
1444     TRACE("(%p, %d)\n", path, fill);
1445
1446     if(!path)
1447         return InvalidParameter;
1448
1449     path->fill = fill;
1450
1451     return Ok;
1452 }
1453
1454 GpStatus WINGDIPAPI GdipTransformPath(GpPath *path, GpMatrix *matrix)
1455 {
1456     TRACE("(%p, %p)\n", path, matrix);
1457
1458     if(!path)
1459         return InvalidParameter;
1460
1461     if(path->pathdata.Count == 0)
1462         return Ok;
1463
1464     return GdipTransformMatrixPoints(matrix, path->pathdata.Points,
1465                                      path->pathdata.Count);
1466 }
1467
1468 GpStatus WINGDIPAPI GdipAddPathRectangle(GpPath *path, REAL x, REAL y,
1469     REAL width, REAL height)
1470 {
1471     GpPath *backup;
1472     GpPointF ptf[2];
1473     GpStatus retstat;
1474     BOOL old_new;
1475
1476     TRACE("(%p, %.2f, %.2f, %.2f, %.2f)\n", path, x, y, width, height);
1477
1478     if(!path || width < 0.0 || height < 0.0)
1479         return InvalidParameter;
1480
1481     /* make a backup copy of path data */
1482     if((retstat = GdipClonePath(path, &backup)) != Ok)
1483         return retstat;
1484
1485     /* rectangle should start as new path */
1486     old_new = path->newfigure;
1487     path->newfigure = TRUE;
1488     if((retstat = GdipAddPathLine(path,x,y,x+width,y)) != Ok){
1489         path->newfigure = old_new;
1490         goto fail;
1491     }
1492
1493     ptf[0].X = x+width;
1494     ptf[0].Y = y+height;
1495     ptf[1].X = x;
1496     ptf[1].Y = y+height;
1497
1498     if((retstat = GdipAddPathLine2(path, ptf, 2)) != Ok)  goto fail;
1499     path->pathdata.Types[path->pathdata.Count-1] |= PathPointTypeCloseSubpath;
1500
1501     /* free backup */
1502     GdipDeletePath(backup);
1503     return Ok;
1504
1505 fail:
1506     /* reverting */
1507     GdipDeletePath(path);
1508     GdipClonePath(backup, &path);
1509     GdipDeletePath(backup);
1510
1511     return retstat;
1512 }
1513
1514 GpStatus WINGDIPAPI GdipAddPathRectangleI(GpPath *path, INT x, INT y,
1515     INT width, INT height)
1516 {
1517     TRACE("(%p, %d, %d, %d, %d)\n", path, x, y, width, height);
1518
1519     return GdipAddPathRectangle(path,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
1520 }
1521
1522 GpStatus WINGDIPAPI GdipAddPathRectangles(GpPath *path, GDIPCONST GpRectF *rects, INT count)
1523 {
1524     GpPath *backup;
1525     GpStatus retstat;
1526     INT i;
1527
1528     TRACE("(%p, %p, %d)\n", path, rects, count);
1529
1530     /* count == 0 - verified condition  */
1531     if(!path || !rects || count == 0)
1532         return InvalidParameter;
1533
1534     if(count < 0)
1535         return OutOfMemory;
1536
1537     /* make a backup copy */
1538     if((retstat = GdipClonePath(path, &backup)) != Ok)
1539         return retstat;
1540
1541     for(i = 0; i < count; i++){
1542         if((retstat = GdipAddPathRectangle(path,rects[i].X,rects[i].Y,rects[i].Width,rects[i].Height)) != Ok)
1543             goto fail;
1544     }
1545
1546     /* free backup */
1547     GdipDeletePath(backup);
1548     return Ok;
1549
1550 fail:
1551     /* reverting */
1552     GdipDeletePath(path);
1553     GdipClonePath(backup, &path);
1554     GdipDeletePath(backup);
1555
1556     return retstat;
1557 }
1558
1559 GpStatus WINGDIPAPI GdipAddPathRectanglesI(GpPath *path, GDIPCONST GpRect *rects, INT count)
1560 {
1561     GpRectF *rectsF;
1562     GpStatus retstat;
1563     INT i;
1564
1565     TRACE("(%p, %p, %d)\n", path, rects, count);
1566
1567     if(!rects || count == 0)
1568         return InvalidParameter;
1569
1570     if(count < 0)
1571         return OutOfMemory;
1572
1573     rectsF = GdipAlloc(sizeof(GpRectF)*count);
1574
1575     for(i = 0;i < count;i++){
1576         rectsF[i].X      = (REAL)rects[i].X;
1577         rectsF[i].Y      = (REAL)rects[i].Y;
1578         rectsF[i].Width  = (REAL)rects[i].Width;
1579         rectsF[i].Height = (REAL)rects[i].Height;
1580     }
1581
1582     retstat = GdipAddPathRectangles(path, rectsF, count);
1583     GdipFree(rectsF);
1584
1585     return retstat;
1586 }
1587
1588 GpStatus WINGDIPAPI GdipSetPathMarker(GpPath* path)
1589 {
1590     INT count;
1591
1592     TRACE("(%p)\n", path);
1593
1594     if(!path)
1595         return InvalidParameter;
1596
1597     count = path->pathdata.Count;
1598
1599     /* set marker flag */
1600     if(count > 0)
1601         path->pathdata.Types[count-1] |= PathPointTypePathMarker;
1602
1603     return Ok;
1604 }
1605
1606 GpStatus WINGDIPAPI GdipClearPathMarkers(GpPath* path)
1607 {
1608     INT count;
1609     INT i;
1610
1611     TRACE("(%p)\n", path);
1612
1613     if(!path)
1614         return InvalidParameter;
1615
1616     count = path->pathdata.Count;
1617
1618     for(i = 0; i < count - 1; i++){
1619         path->pathdata.Types[i] &= ~PathPointTypePathMarker;
1620     }
1621
1622     return Ok;
1623 }