dlls/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 GdipAddPathPie(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 GdipAddPathString(GpPath* path, GDIPCONST WCHAR* string, INT length, GDIPCONST GpFontFamily* family, INT style, REAL emSize, GDIPCONST RectF* layoutRect, GDIPCONST GpStringFormat* format)
 835 {
 836     FIXME("(%p, %p, %d, %p, %d, %f, %p, %p): stub\n", path, string, length, family, style, emSize, layoutRect, format);
 837     return NotImplemented;
 838 }
 839
 840 GpStatus WINGDIPAPI GdipAddPathStringI(GpPath* path, GDIPCONST WCHAR* string, INT length, GDIPCONST GpFontFamily* family, INT style, REAL emSize, GDIPCONST Rect* layoutRect, GDIPCONST GpStringFormat* format)
 841 {
 842     FIXME("(%p, %p, %d, %p, %d, %f, %p, %p): stub\n", path, string, length, family, style, emSize, layoutRect, format);
 843     return NotImplemented;
 844 }
 845
 846 GpStatus WINGDIPAPI GdipClonePath(GpPath* path, GpPath **clone)
 847 {
 848     TRACE("(%p, %p)\n", path, clone);
 849
 850     if(!path || !clone)
 851         return InvalidParameter;
 852
 853     *clone = GdipAlloc(sizeof(GpPath));
 854     if(!*clone) return OutOfMemory;
 855
 856     **clone = *path;
 857
 858     (*clone)->pathdata.Points = GdipAlloc(path->datalen * sizeof(PointF));
 859     (*clone)->pathdata.Types = GdipAlloc(path->datalen);
 860     if(!(*clone)->pathdata.Points || !(*clone)->pathdata.Types){
 861         GdipFree(*clone);
 862         GdipFree((*clone)->pathdata.Points);
 863         GdipFree((*clone)->pathdata.Types);
 864         return OutOfMemory;
 865     }
 866
 867     memcpy((*clone)->pathdata.Points, path->pathdata.Points,
 868            path->datalen * sizeof(PointF));
 869     memcpy((*clone)->pathdata.Types, path->pathdata.Types, path->datalen);
 870
 871     return Ok;
 872 }
 873
 874 GpStatus WINGDIPAPI GdipClosePathFigure(GpPath* path)
 875 {
 876     TRACE("(%p)\n", path);
 877
 878     if(!path)
 879         return InvalidParameter;
 880
 881     if(path->pathdata.Count > 0){
 882         path->pathdata.Types[path->pathdata.Count - 1] |= PathPointTypeCloseSubpath;
 883         path->newfigure = TRUE;
 884     }
 885
 886     return Ok;
 887 }
 888
 889 GpStatus WINGDIPAPI GdipClosePathFigures(GpPath* path)
 890 {
 891     INT i;
 892
 893     TRACE("(%p)\n", path);
 894
 895     if(!path)
 896         return InvalidParameter;
 897
 898     for(i = 1; i < path->pathdata.Count; i++){
 899         if(path->pathdata.Types[i] == PathPointTypeStart)
 900             path->pathdata.Types[i-1] |= PathPointTypeCloseSubpath;
 901     }
 902
 903     path->newfigure = TRUE;
 904
 905     return Ok;
 906 }
 907
 908 GpStatus WINGDIPAPI GdipCreatePath(GpFillMode fill, GpPath **path)
 909 {
 910     TRACE("(%d, %p)\n", fill, path);
 911
 912     if(!path)
 913         return InvalidParameter;
 914
 915     *path = GdipAlloc(sizeof(GpPath));
 916     if(!*path)  return OutOfMemory;
 917
 918     (*path)->fill = fill;
 919     (*path)->newfigure = TRUE;
 920
 921     return Ok;
 922 }
 923
 924 GpStatus WINGDIPAPI GdipCreatePath2(GDIPCONST GpPointF* points,
 925     GDIPCONST BYTE* types, INT count, GpFillMode fill, GpPath **path)
 926 {
 927     TRACE("(%p, %p, %d, %d, %p)\n", points, types, count, fill, path);
 928
 929     if(!path)
 930         return InvalidParameter;
 931
 932     *path = GdipAlloc(sizeof(GpPath));
 933     if(!*path)  return OutOfMemory;
 934
 935     (*path)->pathdata.Points = GdipAlloc(count * sizeof(PointF));
 936     (*path)->pathdata.Types = GdipAlloc(count);
 937
 938     if(!(*path)->pathdata.Points || !(*path)->pathdata.Types){
 939         GdipFree((*path)->pathdata.Points);
 940         GdipFree((*path)->pathdata.Types);
 941         GdipFree(*path);
 942         return OutOfMemory;
 943     }
 944
 945     memcpy((*path)->pathdata.Points, points, count * sizeof(PointF));
 946     memcpy((*path)->pathdata.Types, types, count);
 947     (*path)->pathdata.Count = count;
 948     (*path)->datalen = count;
 949
 950     (*path)->fill = fill;
 951     (*path)->newfigure = TRUE;
 952
 953     return Ok;
 954 }
 955
 956 GpStatus WINGDIPAPI GdipCreatePath2I(GDIPCONST GpPoint* points,
 957     GDIPCONST BYTE* types, INT count, GpFillMode fill, GpPath **path)
 958 {
 959     GpPointF *ptF;
 960     GpStatus ret;
 961     INT i;
 962
 963     TRACE("(%p, %p, %d, %d, %p)\n", points, types, count, fill, path);
 964
 965     ptF = GdipAlloc(sizeof(GpPointF)*count);
 966
 967     for(i = 0;i < count; i++){
 968         ptF[i].X = (REAL)points[i].X;
 969         ptF[i].Y = (REAL)points[i].Y;
 970     }
 971
 972     ret = GdipCreatePath2(ptF, types, count, fill, path);
 973
 974     GdipFree(ptF);
 975
 976     return ret;
 977 }
 978
 979 GpStatus WINGDIPAPI GdipDeletePath(GpPath *path)
 980 {
 981     TRACE("(%p)\n", path);
 982
 983     if(!path)
 984         return InvalidParameter;
 985
 986     GdipFree(path->pathdata.Points);
 987     GdipFree(path->pathdata.Types);
 988     GdipFree(path);
 989
 990     return Ok;
 991 }
 992
 993 GpStatus WINGDIPAPI GdipFlattenPath(GpPath *path, GpMatrix* matrix, REAL flatness)
 994 {
 995     path_list_node_t *list, *node;
 996     GpPointF pt;
 997     INT i = 1;
 998     INT startidx = 0;
 999
1000     TRACE("(%p, %p, %.2f)\n", path, matrix, flatness);
1001
1002     if(!path)
1003         return InvalidParameter;
1004
1005     if(matrix){
1006         WARN("transformation not supported yet!\n");
1007         return NotImplemented;
1008     }
1009
1010     if(path->pathdata.Count == 0)
1011         return Ok;
1012
1013     pt = path->pathdata.Points[0];
1014     if(!init_path_list(&list, pt.X, pt.Y))
1015         return OutOfMemory;
1016
1017     node = list;
1018
1019     while(i < path->pathdata.Count){
1020
1021         BYTE type = path->pathdata.Types[i] & PathPointTypePathTypeMask;
1022         path_list_node_t *start;
1023
1024         pt = path->pathdata.Points[i];
1025
1026         /* save last start point index */
1027         if(type == PathPointTypeStart)
1028             startidx = i;
1029
1030         /* always add line points and start points */
1031         if((type == PathPointTypeStart) || (type == PathPointTypeLine)){
1032             if(!add_path_list_node(node, pt.X, pt.Y, path->pathdata.Types[i]))
1033                 goto memout;
1034
1035             node = node->next;
1036             ++i;
1037             continue;
1038         }
1039
1040         /* Bezier curve always stored as 4 points */
1041         if((path->pathdata.Types[i-1] & PathPointTypePathTypeMask) != PathPointTypeStart){
1042             type = (path->pathdata.Types[i] & ~PathPointTypePathTypeMask) | PathPointTypeLine;
1043             if(!add_path_list_node(node, pt.X, pt.Y, type))
1044                 goto memout;
1045
1046             node = node->next;
1047         }
1048
1049         /* test for closed figure */
1050         if(path->pathdata.Types[i+1] & PathPointTypeCloseSubpath){
1051             pt = path->pathdata.Points[startidx];
1052             ++i;
1053         }
1054         else
1055         {
1056             i += 2;
1057             pt = path->pathdata.Points[i];
1058         };
1059
1060         start = node;
1061         /* add Bezier end point */
1062         type = (path->pathdata.Types[i] & ~PathPointTypePathTypeMask) | PathPointTypeLine;
1063         if(!add_path_list_node(node, pt.X, pt.Y, type))
1064             goto memout;
1065         node = node->next;
1066
1067         /* flatten curve */
1068         if(!flatten_bezier(start, path->pathdata.Points[i-2].X, path->pathdata.Points[i-2].Y,
1069                                   path->pathdata.Points[i-1].X, path->pathdata.Points[i-1].Y,
1070                            node, flatness))
1071             goto memout;
1072
1073         ++i;
1074     }/* while */
1075
1076     /* store path data back */
1077     i = path_list_count(list);
1078     if(!lengthen_path(path, i))
1079         goto memout;
1080     path->pathdata.Count = i;
1081
1082     node = list;
1083     for(i = 0; i < path->pathdata.Count; i++){
1084         path->pathdata.Points[i] = node->pt;
1085         path->pathdata.Types[i]  = node->type;
1086         node = node->next;
1087     }
1088
1089     free_path_list(list);
1090     return Ok;
1091
1092 memout:
1093     free_path_list(list);
1094     return OutOfMemory;
1095 }
1096
1097 GpStatus WINGDIPAPI GdipGetPathData(GpPath *path, GpPathData* pathData)
1098 {
1099     TRACE("(%p, %p)\n", path, pathData);
1100
1101     if(!path || !pathData)
1102         return InvalidParameter;
1103
1104     /* Only copy data. pathData allocation/freeing controlled by wrapper class.
1105        Assumed that pathData is enough wide to get all data - controlled by wrapper too. */
1106     memcpy(pathData->Points, path->pathdata.Points, sizeof(PointF) * pathData->Count);
1107     memcpy(pathData->Types , path->pathdata.Types , pathData->Count);
1108
1109     return Ok;
1110 }
1111
1112 GpStatus WINGDIPAPI GdipGetPathFillMode(GpPath *path, GpFillMode *fillmode)
1113 {
1114     TRACE("(%p, %p)\n", path, fillmode);
1115
1116     if(!path || !fillmode)
1117         return InvalidParameter;
1118
1119     *fillmode = path->fill;
1120
1121     return Ok;
1122 }
1123
1124 GpStatus WINGDIPAPI GdipGetPathLastPoint(GpPath* path, GpPointF* lastPoint)
1125 {
1126     INT count;
1127
1128     TRACE("(%p, %p)\n", path, lastPoint);
1129
1130     if(!path || !lastPoint)
1131         return InvalidParameter;
1132
1133     count = path->pathdata.Count;
1134     if(count > 0)
1135         *lastPoint = path->pathdata.Points[count-1];
1136
1137     return Ok;
1138 }
1139
1140 GpStatus WINGDIPAPI GdipGetPathPoints(GpPath *path, GpPointF* points, INT count)
1141 {
1142     TRACE("(%p, %p, %d)\n", path, points, count);
1143
1144     if(!path)
1145         return InvalidParameter;
1146
1147     if(count < path->pathdata.Count)
1148         return InsufficientBuffer;
1149
1150     memcpy(points, path->pathdata.Points, path->pathdata.Count * sizeof(GpPointF));
1151
1152     return Ok;
1153 }
1154
1155 GpStatus WINGDIPAPI GdipGetPathPointsI(GpPath *path, GpPoint* points, INT count)
1156 {
1157     GpStatus ret;
1158     GpPointF *ptf;
1159     INT i;
1160
1161     TRACE("(%p, %p, %d)\n", path, points, count);
1162
1163     if(count <= 0)
1164         return InvalidParameter;
1165
1166     ptf = GdipAlloc(sizeof(GpPointF)*count);
1167     if(!ptf)    return OutOfMemory;
1168
1169     ret = GdipGetPathPoints(path,ptf,count);
1170     if(ret == Ok)
1171         for(i = 0;i < count;i++){
1172             points[i].X = roundr(ptf[i].X);
1173             points[i].Y = roundr(ptf[i].Y);
1174         };
1175     GdipFree(ptf);
1176
1177     return ret;
1178 }
1179
1180 GpStatus WINGDIPAPI GdipGetPathTypes(GpPath *path, BYTE* types, INT count)
1181 {
1182     TRACE("(%p, %p, %d)\n", path, types, count);
1183
1184     if(!path)
1185         return InvalidParameter;
1186
1187     if(count < path->pathdata.Count)
1188         return InsufficientBuffer;
1189
1190     memcpy(types, path->pathdata.Types, path->pathdata.Count);
1191
1192     return Ok;
1193 }
1194
1195 /* Windows expands the bounding box to the maximum possible bounding box
1196  * for a given pen.  For example, if a line join can extend past the point
1197  * it's joining by x units, the bounding box is extended by x units in every
1198  * direction (even though this is too conservative for most cases). */
1199 GpStatus WINGDIPAPI GdipGetPathWorldBounds(GpPath* path, GpRectF* bounds,
1200     GDIPCONST GpMatrix *matrix, GDIPCONST GpPen *pen)
1201 {
1202     GpPointF * points, temp_pts[4];
1203     INT count, i;
1204     REAL path_width = 1.0, width, height, temp, low_x, low_y, high_x, high_y;
1205
1206     TRACE("(%p, %p, %p, %p)\n", path, bounds, matrix, pen);
1207
1208     /* Matrix and pen can be null. */
1209     if(!path || !bounds)
1210         return InvalidParameter;
1211
1212     /* If path is empty just return. */
1213     count = path->pathdata.Count;
1214     if(count == 0){
1215         bounds->X = bounds->Y = bounds->Width = bounds->Height = 0.0;
1216         return Ok;
1217     }
1218
1219     points = path->pathdata.Points;
1220
1221     low_x = high_x = points[0].X;
1222     low_y = high_y = points[0].Y;
1223
1224     for(i = 1; i < count; i++){
1225         low_x = min(low_x, points[i].X);
1226         low_y = min(low_y, points[i].Y);
1227         high_x = max(high_x, points[i].X);
1228         high_y = max(high_y, points[i].Y);
1229     }
1230
1231     width = high_x - low_x;
1232     height = high_y - low_y;
1233
1234     /* This looks unusual but it's the only way I can imitate windows. */
1235     if(matrix){
1236         temp_pts[0].X = low_x;
1237         temp_pts[0].Y = low_y;
1238         temp_pts[1].X = low_x;
1239         temp_pts[1].Y = high_y;
1240         temp_pts[2].X = high_x;
1241         temp_pts[2].Y = high_y;
1242         temp_pts[3].X = high_x;
1243         temp_pts[3].Y = low_y;
1244
1245         GdipTransformMatrixPoints((GpMatrix*)matrix, temp_pts, 4);
1246         low_x = temp_pts[0].X;
1247         low_y = temp_pts[0].Y;
1248
1249         for(i = 1; i < 4; i++){
1250             low_x = min(low_x, temp_pts[i].X);
1251             low_y = min(low_y, temp_pts[i].Y);
1252         }
1253
1254         temp = width;
1255         width = height * fabs(matrix->matrix[2]) + width * fabs(matrix->matrix[0]);
1256         height = height * fabs(matrix->matrix[3]) + temp * fabs(matrix->matrix[1]);
1257     }
1258
1259     if(pen){
1260         path_width = pen->width / 2.0;
1261
1262         if(count > 2)
1263             path_width = max(path_width,  pen->width * pen->miterlimit / 2.0);
1264         /* FIXME: this should probably also check for the startcap */
1265         if(pen->endcap & LineCapNoAnchor)
1266             path_width = max(path_width,  pen->width * 2.2);
1267
1268         low_x -= path_width;
1269         low_y -= path_width;
1270         width += 2.0 * path_width;
1271         height += 2.0 * path_width;
1272     }
1273
1274     bounds->X = low_x;
1275     bounds->Y = low_y;
1276     bounds->Width = width;
1277     bounds->Height = height;
1278
1279     return Ok;
1280 }
1281
1282 GpStatus WINGDIPAPI GdipGetPathWorldBoundsI(GpPath* path, GpRect* bounds,
1283     GDIPCONST GpMatrix *matrix, GDIPCONST GpPen *pen)
1284 {
1285     GpStatus ret;
1286     GpRectF boundsF;
1287
1288     TRACE("(%p, %p, %p, %p)\n", path, bounds, matrix, pen);
1289
1290     ret = GdipGetPathWorldBounds(path,&boundsF,matrix,pen);
1291
1292     if(ret == Ok){
1293         bounds->X      = roundr(boundsF.X);
1294         bounds->Y      = roundr(boundsF.Y);
1295         bounds->Width  = roundr(boundsF.Width);
1296         bounds->Height = roundr(boundsF.Height);
1297     }
1298
1299     return ret;
1300 }
1301
1302 GpStatus WINGDIPAPI GdipGetPointCount(GpPath *path, INT *count)
1303 {
1304     TRACE("(%p, %p)\n", path, count);
1305
1306     if(!path)
1307         return InvalidParameter;
1308
1309     *count = path->pathdata.Count;
1310
1311     return Ok;
1312 }
1313
1314 GpStatus WINGDIPAPI GdipReversePath(GpPath* path)
1315 {
1316     INT i, count;
1317     INT start = 0; /* position in reversed path */
1318     GpPathData revpath;
1319
1320     TRACE("(%p)\n", path);
1321
1322     if(!path)
1323         return InvalidParameter;
1324
1325     count = path->pathdata.Count;
1326
1327     if(count == 0) return Ok;
1328
1329     revpath.Points = GdipAlloc(sizeof(GpPointF)*count);
1330     revpath.Types  = GdipAlloc(sizeof(BYTE)*count);
1331     revpath.Count  = count;
1332     if(!revpath.Points || !revpath.Types){
1333         GdipFree(revpath.Points);
1334         GdipFree(revpath.Types);
1335         return OutOfMemory;
1336     }
1337
1338     for(i = 0; i < count; i++){
1339
1340         /* find next start point */
1341         if(path->pathdata.Types[count-i-1] == PathPointTypeStart){
1342             INT j;
1343             for(j = start; j <= i; j++){
1344                 revpath.Points[j] = path->pathdata.Points[count-j-1];
1345                 revpath.Types[j] = path->pathdata.Types[count-j-1];
1346             }
1347             /* mark start point */
1348             revpath.Types[start] = PathPointTypeStart;
1349             /* set 'figure' endpoint type */
1350             if(i-start > 1){
1351                 revpath.Types[i] = path->pathdata.Types[count-start-1] & ~PathPointTypePathTypeMask;
1352                 revpath.Types[i] |= revpath.Types[i-1];
1353             }
1354             else
1355                 revpath.Types[i] = path->pathdata.Types[start];
1356
1357             start = i+1;
1358         }
1359     }
1360
1361     memcpy(path->pathdata.Points, revpath.Points, sizeof(GpPointF)*count);
1362     memcpy(path->pathdata.Types,  revpath.Types,  sizeof(BYTE)*count);
1363
1364     GdipFree(revpath.Points);
1365     GdipFree(revpath.Types);
1366
1367     return Ok;
1368 }
1369
1370 GpStatus WINGDIPAPI GdipIsOutlineVisiblePathPointI(GpPath* path, INT x, INT y,
1371     GpPen *pen, GpGraphics *graphics, BOOL *result)
1372 {
1373     TRACE("(%p, %d, %d, %p, %p, %p)\n", path, x, y, pen, graphics, result);
1374
1375     return GdipIsOutlineVisiblePathPoint(path, x, y, pen, graphics, result);
1376 }
1377
1378 GpStatus WINGDIPAPI GdipIsOutlineVisiblePathPoint(GpPath* path, REAL x, REAL y,
1379     GpPen *pen, GpGraphics *graphics, BOOL *result)
1380 {
1381     static int calls;
1382
1383     if(!path || !pen)
1384         return InvalidParameter;
1385
1386     if(!(calls++))
1387         FIXME("not implemented\n");
1388
1389     return NotImplemented;
1390 }
1391
1392 GpStatus WINGDIPAPI GdipIsVisiblePathPointI(GpPath* path, INT x, INT y, GpGraphics *graphics, BOOL *result)
1393 {
1394     TRACE("(%p, %d, %d, %p, %p)\n", path, x, y, graphics, result);
1395
1396     return GdipIsVisiblePathPoint(path, x, y, graphics, result);
1397 }
1398
1399 /*****************************************************************************
1400  * GdipIsVisiblePathPoint [GDIPLUS.@]
1401  */
1402 GpStatus WINGDIPAPI GdipIsVisiblePathPoint(GpPath* path, REAL x, REAL y, GpGraphics *graphics, BOOL *result)
1403 {
1404     GpRegion *region;
1405     HRGN hrgn;
1406     GpStatus status;
1407
1408     if(!path || !result) return InvalidParameter;
1409
1410     status = GdipCreateRegionPath(path, &region);
1411     if(status != Ok)
1412         return status;
1413
1414     status = GdipGetRegionHRgn(region, graphics, &hrgn);
1415     if(status != Ok){
1416         GdipDeleteRegion(region);
1417         return status;
1418     }
1419
1420     *result = PtInRegion(hrgn, roundr(x), roundr(y));
1421
1422     DeleteObject(hrgn);
1423     GdipDeleteRegion(region);
1424
1425     return Ok;
1426 }
1427
1428 GpStatus WINGDIPAPI GdipStartPathFigure(GpPath *path)
1429 {
1430     TRACE("(%p)\n", path);
1431
1432     if(!path)
1433         return InvalidParameter;
1434
1435     path->newfigure = TRUE;
1436
1437     return Ok;
1438 }
1439
1440 GpStatus WINGDIPAPI GdipResetPath(GpPath *path)
1441 {
1442     TRACE("(%p)\n", path);
1443
1444     if(!path)
1445         return InvalidParameter;
1446
1447     path->pathdata.Count = 0;
1448     path->newfigure = TRUE;
1449     path->fill = FillModeAlternate;
1450
1451     return Ok;
1452 }
1453
1454 GpStatus WINGDIPAPI GdipSetPathFillMode(GpPath *path, GpFillMode fill)
1455 {
1456     TRACE("(%p, %d)\n", path, fill);
1457
1458     if(!path)
1459         return InvalidParameter;
1460
1461     path->fill = fill;
1462
1463     return Ok;
1464 }
1465
1466 GpStatus WINGDIPAPI GdipTransformPath(GpPath *path, GpMatrix *matrix)
1467 {
1468     TRACE("(%p, %p)\n", path, matrix);
1469
1470     if(!path)
1471         return InvalidParameter;
1472
1473     if(path->pathdata.Count == 0)
1474         return Ok;
1475
1476     return GdipTransformMatrixPoints(matrix, path->pathdata.Points,
1477                                      path->pathdata.Count);
1478 }
1479
1480 GpStatus WINGDIPAPI GdipWarpPath(GpPath *path, GpMatrix* matrix,
1481     GDIPCONST GpPointF *points, INT count, REAL x, REAL y, REAL width,
1482     REAL height, WarpMode warpmode, REAL flatness)
1483 {
1484     FIXME("(%p,%p,%p,%i,%0.2f,%0.2f,%0.2f,%0.2f,%i,%0.2f)\n", path, matrix,
1485         points, count, x, y, width, height, warpmode, flatness);
1486
1487     return NotImplemented;
1488 }
1489
1490 GpStatus WINGDIPAPI GdipWidenPath(GpPath *path, GpPen *pen, GpMatrix *matrix,
1491     REAL flatness)
1492 {
1493     FIXME("(%p,%p,%p,%0.2f)\n", path, pen, matrix, flatness);
1494
1495     return NotImplemented;
1496 }
1497
1498 GpStatus WINGDIPAPI GdipAddPathRectangle(GpPath *path, REAL x, REAL y,
1499     REAL width, REAL height)
1500 {
1501     GpPath *backup;
1502     GpPointF ptf[2];
1503     GpStatus retstat;
1504     BOOL old_new;
1505
1506     TRACE("(%p, %.2f, %.2f, %.2f, %.2f)\n", path, x, y, width, height);
1507
1508     if(!path || width < 0.0 || height < 0.0)
1509         return InvalidParameter;
1510
1511     /* make a backup copy of path data */
1512     if((retstat = GdipClonePath(path, &backup)) != Ok)
1513         return retstat;
1514
1515     /* rectangle should start as new path */
1516     old_new = path->newfigure;
1517     path->newfigure = TRUE;
1518     if((retstat = GdipAddPathLine(path,x,y,x+width,y)) != Ok){
1519         path->newfigure = old_new;
1520         goto fail;
1521     }
1522
1523     ptf[0].X = x+width;
1524     ptf[0].Y = y+height;
1525     ptf[1].X = x;
1526     ptf[1].Y = y+height;
1527
1528     if((retstat = GdipAddPathLine2(path, ptf, 2)) != Ok)  goto fail;
1529     path->pathdata.Types[path->pathdata.Count-1] |= PathPointTypeCloseSubpath;
1530
1531     /* free backup */
1532     GdipDeletePath(backup);
1533     return Ok;
1534
1535 fail:
1536     /* reverting */
1537     GdipDeletePath(path);
1538     GdipClonePath(backup, &path);
1539     GdipDeletePath(backup);
1540
1541     return retstat;
1542 }
1543
1544 GpStatus WINGDIPAPI GdipAddPathRectangleI(GpPath *path, INT x, INT y,
1545     INT width, INT height)
1546 {
1547     TRACE("(%p, %d, %d, %d, %d)\n", path, x, y, width, height);
1548
1549     return GdipAddPathRectangle(path,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
1550 }
1551
1552 GpStatus WINGDIPAPI GdipAddPathRectangles(GpPath *path, GDIPCONST GpRectF *rects, INT count)
1553 {
1554     GpPath *backup;
1555     GpStatus retstat;
1556     INT i;
1557
1558     TRACE("(%p, %p, %d)\n", path, rects, count);
1559
1560     /* count == 0 - verified condition  */
1561     if(!path || !rects || count == 0)
1562         return InvalidParameter;
1563
1564     if(count < 0)
1565         return OutOfMemory;
1566
1567     /* make a backup copy */
1568     if((retstat = GdipClonePath(path, &backup)) != Ok)
1569         return retstat;
1570
1571     for(i = 0; i < count; i++){
1572         if((retstat = GdipAddPathRectangle(path,rects[i].X,rects[i].Y,rects[i].Width,rects[i].Height)) != Ok)
1573             goto fail;
1574     }
1575
1576     /* free backup */
1577     GdipDeletePath(backup);
1578     return Ok;
1579
1580 fail:
1581     /* reverting */
1582     GdipDeletePath(path);
1583     GdipClonePath(backup, &path);
1584     GdipDeletePath(backup);
1585
1586     return retstat;
1587 }
1588
1589 GpStatus WINGDIPAPI GdipAddPathRectanglesI(GpPath *path, GDIPCONST GpRect *rects, INT count)
1590 {
1591     GpRectF *rectsF;
1592     GpStatus retstat;
1593     INT i;
1594
1595     TRACE("(%p, %p, %d)\n", path, rects, count);
1596
1597     if(!rects || count == 0)
1598         return InvalidParameter;
1599
1600     if(count < 0)
1601         return OutOfMemory;
1602
1603     rectsF = GdipAlloc(sizeof(GpRectF)*count);
1604
1605     for(i = 0;i < count;i++){
1606         rectsF[i].X      = (REAL)rects[i].X;
1607         rectsF[i].Y      = (REAL)rects[i].Y;
1608         rectsF[i].Width  = (REAL)rects[i].Width;
1609         rectsF[i].Height = (REAL)rects[i].Height;
1610     }
1611
1612     retstat = GdipAddPathRectangles(path, rectsF, count);
1613     GdipFree(rectsF);
1614
1615     return retstat;
1616 }
1617
1618 GpStatus WINGDIPAPI GdipSetPathMarker(GpPath* path)
1619 {
1620     INT count;
1621
1622     TRACE("(%p)\n", path);
1623
1624     if(!path)
1625         return InvalidParameter;
1626
1627     count = path->pathdata.Count;
1628
1629     /* set marker flag */
1630     if(count > 0)
1631         path->pathdata.Types[count-1] |= PathPointTypePathMarker;
1632
1633     return Ok;
1634 }
1635
1636 GpStatus WINGDIPAPI GdipClearPathMarkers(GpPath* path)
1637 {
1638     INT count;
1639     INT i;
1640
1641     TRACE("(%p)\n", path);
1642
1643     if(!path)
1644         return InvalidParameter;
1645
1646     count = path->pathdata.Count;
1647
1648     for(i = 0; i < count - 1; i++){
1649         path->pathdata.Types[i] &= ~PathPointTypePathMarker;
1650     }
1651
1652     return Ok;
1653 }