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wined3d: Replace wined3d_surface_update_desc() with wined3d_texture_update_desc().
[wine.git] / dlls / gdiplus / graphicspath.c
blob882bc48fe638d4cd174e6c8bca372189ff9530ce
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 halves */
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 separately 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 path->pathdata.Types[path->pathdata.Count - 1] |= PathPointTypeCloseSubpath;
388 path->newfigure = TRUE;
389 }
390
391 GdipFree(pts);
392 GdipFree(pt);
393
394 return stat;
395 }
396
397 GpStatus WINGDIPAPI GdipAddPathClosedCurve2I(GpPath *path, GDIPCONST GpPoint *points,
398 INT count, REAL tension)
399 {
400 GpPointF *ptf;
401 INT i;
402 GpStatus stat;
403
404 TRACE("(%p, %p, %d, %.2f)\n", path, points, count, tension);
405
406 if(!path || !points || count <= 1)
407 return InvalidParameter;
408
409 ptf = GdipAlloc(sizeof(GpPointF)*count);
410 if(!ptf)
411 return OutOfMemory;
412
413 for(i = 0; i < count; i++){
414 ptf[i].X = (REAL)points[i].X;
415 ptf[i].Y = (REAL)points[i].Y;
416 }
417
418 stat = GdipAddPathClosedCurve2(path, ptf, count, tension);
419
420 GdipFree(ptf);
421
422 return stat;
423 }
424
425 GpStatus WINGDIPAPI GdipAddPathCurve(GpPath *path, GDIPCONST GpPointF *points, INT count)
426 {
427 TRACE("(%p, %p, %d)\n", path, points, count);
428
429 if(!path || !points || count <= 1)
430 return InvalidParameter;
431
432 return GdipAddPathCurve2(path, points, count, 1.0);
433 }
434
435 GpStatus WINGDIPAPI GdipAddPathCurveI(GpPath *path, GDIPCONST GpPoint *points, INT count)
436 {
437 TRACE("(%p, %p, %d)\n", path, points, count);
438
439 if(!path || !points || count <= 1)
440 return InvalidParameter;
441
442 return GdipAddPathCurve2I(path, points, count, 1.0);
443 }
444
445 GpStatus WINGDIPAPI GdipAddPathCurve2(GpPath *path, GDIPCONST GpPointF *points, INT count,
446 REAL tension)
447 {
448 INT i, len_pt = count*3-2;
449 GpPointF *pt;
450 REAL x1, x2, y1, y2;
451 GpStatus stat;
452
453 TRACE("(%p, %p, %d, %.2f)\n", path, points, count, tension);
454
455 if(!path || !points || count <= 1)
456 return InvalidParameter;
457
458 pt = GdipAlloc(len_pt * sizeof(GpPointF));
459 if(!pt)
460 return OutOfMemory;
461
462 tension = tension * TENSION_CONST;
463
464 calc_curve_bezier_endp(points[0].X, points[0].Y, points[1].X, points[1].Y,
465 tension, &x1, &y1);
466
467 pt[0].X = points[0].X;
468 pt[0].Y = points[0].Y;
469 pt[1].X = x1;
470 pt[1].Y = y1;
471
472 for(i = 0; i < count-2; i++){
473 calc_curve_bezier(&(points[i]), tension, &x1, &y1, &x2, &y2);
474
475 pt[3*i+2].X = x1;
476 pt[3*i+2].Y = y1;
477 pt[3*i+3].X = points[i+1].X;
478 pt[3*i+3].Y = points[i+1].Y;
479 pt[3*i+4].X = x2;
480 pt[3*i+4].Y = y2;
481 }
482
483 calc_curve_bezier_endp(points[count-1].X, points[count-1].Y,
484 points[count-2].X, points[count-2].Y, tension, &x1, &y1);
485
486 pt[len_pt-2].X = x1;
487 pt[len_pt-2].Y = y1;
488 pt[len_pt-1].X = points[count-1].X;
489 pt[len_pt-1].Y = points[count-1].Y;
490
491 stat = GdipAddPathBeziers(path, pt, len_pt);
492
493 GdipFree(pt);
494
495 return stat;
496 }
497
498 GpStatus WINGDIPAPI GdipAddPathCurve2I(GpPath *path, GDIPCONST GpPoint *points,
499 INT count, REAL tension)
500 {
501 GpPointF *ptf;
502 INT i;
503 GpStatus stat;
504
505 TRACE("(%p, %p, %d, %.2f)\n", path, points, count, tension);
506
507 if(!path || !points || count <= 1)
508 return InvalidParameter;
509
510 ptf = GdipAlloc(sizeof(GpPointF)*count);
511 if(!ptf)
512 return OutOfMemory;
513
514 for(i = 0; i < count; i++){
515 ptf[i].X = (REAL)points[i].X;
516 ptf[i].Y = (REAL)points[i].Y;
517 }
518
519 stat = GdipAddPathCurve2(path, ptf, count, tension);
520
521 GdipFree(ptf);
522
523 return stat;
524 }
525
526 GpStatus WINGDIPAPI GdipAddPathCurve3(GpPath *path, GDIPCONST GpPointF *points,
527 INT count, INT offset, INT nseg, REAL tension)
528 {
529 TRACE("(%p, %p, %d, %d, %d, %.2f)\n", path, points, count, offset, nseg, tension);
530
531 if(!path || !points || offset + 1 >= count || count - offset < nseg + 1)
532 return InvalidParameter;
533
534 return GdipAddPathCurve2(path, &points[offset], nseg + 1, tension);
535 }
536
537 GpStatus WINGDIPAPI GdipAddPathCurve3I(GpPath *path, GDIPCONST GpPoint *points,
538 INT count, INT offset, INT nseg, REAL tension)
539 {
540 TRACE("(%p, %p, %d, %d, %d, %.2f)\n", path, points, count, offset, nseg, tension);
541
542 if(!path || !points || offset + 1 >= count || count - offset < nseg + 1)
543 return InvalidParameter;
544
545 return GdipAddPathCurve2I(path, &points[offset], nseg + 1, tension);
546 }
547
548 GpStatus WINGDIPAPI GdipAddPathEllipse(GpPath *path, REAL x, REAL y, REAL width,
549 REAL height)
550 {
551 INT old_count, numpts;
552
553 TRACE("(%p, %.2f, %.2f, %.2f, %.2f)\n", path, x, y, width, height);
554
555 if(!path)
556 return InvalidParameter;
557
558 if(!lengthen_path(path, MAX_ARC_PTS))
559 return OutOfMemory;
560
561 old_count = path->pathdata.Count;
562 if((numpts = arc2polybezier(&path->pathdata.Points[old_count], x, y, width,
563 height, 0.0, 360.0)) != MAX_ARC_PTS){
564 ERR("expected %d points but got %d\n", MAX_ARC_PTS, numpts);
565 return GenericError;
566 }
567
568 memset(&path->pathdata.Types[old_count + 1], PathPointTypeBezier,
569 MAX_ARC_PTS - 1);
570
571 /* An ellipse is an intrinsic figure (always is its own subpath). */
572 path->pathdata.Types[old_count] = PathPointTypeStart;
573 path->pathdata.Types[old_count + MAX_ARC_PTS - 1] |= PathPointTypeCloseSubpath;
574 path->newfigure = TRUE;
575 path->pathdata.Count += MAX_ARC_PTS;
576
577 return Ok;
578 }
579
580 GpStatus WINGDIPAPI GdipAddPathEllipseI(GpPath *path, INT x, INT y, INT width,
581 INT height)
582 {
583 TRACE("(%p, %d, %d, %d, %d)\n", path, x, y, width, height);
584
585 return GdipAddPathEllipse(path,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
586 }
587
588 GpStatus WINGDIPAPI GdipAddPathLine2(GpPath *path, GDIPCONST GpPointF *points,
589 INT count)
590 {
591 INT i, old_count;
592
593 TRACE("(%p, %p, %d)\n", path, points, count);
594
595 if(!path || !points)
596 return InvalidParameter;
597
598 if(!lengthen_path(path, count))
599 return OutOfMemory;
600
601 old_count = path->pathdata.Count;
602
603 for(i = 0; i < count; i++){
604 path->pathdata.Points[old_count + i].X = points[i].X;
605 path->pathdata.Points[old_count + i].Y = points[i].Y;
606 path->pathdata.Types[old_count + i] = PathPointTypeLine;
607 }
608
609 if(path->newfigure){
610 path->pathdata.Types[old_count] = PathPointTypeStart;
611 path->newfigure = FALSE;
612 }
613
614 path->pathdata.Count += count;
615
616 return Ok;
617 }
618
619 GpStatus WINGDIPAPI GdipAddPathLine2I(GpPath *path, GDIPCONST GpPoint *points, INT count)
620 {
621 GpPointF *pointsF;
622 INT i;
623 GpStatus stat;
624
625 TRACE("(%p, %p, %d)\n", path, points, count);
626
627 if(count <= 0)
628 return InvalidParameter;
629
630 pointsF = GdipAlloc(sizeof(GpPointF) * count);
631 if(!pointsF) return OutOfMemory;
632
633 for(i = 0;i < count; i++){
634 pointsF[i].X = (REAL)points[i].X;
635 pointsF[i].Y = (REAL)points[i].Y;
636 }
637
638 stat = GdipAddPathLine2(path, pointsF, count);
639
640 GdipFree(pointsF);
641
642 return stat;
643 }
644
645 GpStatus WINGDIPAPI GdipAddPathLine(GpPath *path, REAL x1, REAL y1, REAL x2, REAL y2)
646 {
647 INT old_count;
648
649 TRACE("(%p, %.2f, %.2f, %.2f, %.2f)\n", path, x1, y1, x2, y2);
650
651 if(!path)
652 return InvalidParameter;
653
654 if(!lengthen_path(path, 2))
655 return OutOfMemory;
656
657 old_count = path->pathdata.Count;
658
659 path->pathdata.Points[old_count].X = x1;
660 path->pathdata.Points[old_count].Y = y1;
661 path->pathdata.Points[old_count + 1].X = x2;
662 path->pathdata.Points[old_count + 1].Y = y2;
663
664 path->pathdata.Types[old_count] =
665 (path->newfigure ? PathPointTypeStart : PathPointTypeLine);
666 path->pathdata.Types[old_count + 1] = PathPointTypeLine;
667
668 path->newfigure = FALSE;
669 path->pathdata.Count += 2;
670
671 return Ok;
672 }
673
674 GpStatus WINGDIPAPI GdipAddPathLineI(GpPath *path, INT x1, INT y1, INT x2, INT y2)
675 {
676 TRACE("(%p, %d, %d, %d, %d)\n", path, x1, y1, x2, y2);
677
678 return GdipAddPathLine(path, (REAL)x1, (REAL)y1, (REAL)x2, (REAL)y2);
679 }
680
681 GpStatus WINGDIPAPI GdipAddPathPath(GpPath *path, GDIPCONST GpPath* addingPath,
682 BOOL connect)
683 {
684 INT old_count, count;
685
686 TRACE("(%p, %p, %d)\n", path, addingPath, connect);
687
688 if(!path || !addingPath)
689 return InvalidParameter;
690
691 old_count = path->pathdata.Count;
692 count = addingPath->pathdata.Count;
693
694 if(!lengthen_path(path, count))
695 return OutOfMemory;
696
697 memcpy(&path->pathdata.Points[old_count], addingPath->pathdata.Points,
698 count * sizeof(GpPointF));
699 memcpy(&path->pathdata.Types[old_count], addingPath->pathdata.Types, count);
700
701 if(path->newfigure || !connect)
702 path->pathdata.Types[old_count] = PathPointTypeStart;
703 else
704 path->pathdata.Types[old_count] = PathPointTypeLine;
705
706 path->newfigure = FALSE;
707 path->pathdata.Count += count;
708
709 return Ok;
710 }
711
712 GpStatus WINGDIPAPI GdipAddPathPie(GpPath *path, REAL x, REAL y, REAL width, REAL height,
713 REAL startAngle, REAL sweepAngle)
714 {
715 GpPointF *ptf;
716 GpStatus status;
717 INT i, count;
718
719 TRACE("(%p, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f)\n",
720 path, x, y, width, height, startAngle, sweepAngle);
721
722 if(!path)
723 return InvalidParameter;
724
725 /* on zero width/height only start point added */
726 if(width <= 1e-7 || height <= 1e-7){
727 if(!lengthen_path(path, 1))
728 return OutOfMemory;
729 path->pathdata.Points[0].X = x + width / 2.0;
730 path->pathdata.Points[0].Y = y + height / 2.0;
731 path->pathdata.Types[0] = PathPointTypeStart | PathPointTypeCloseSubpath;
732 path->pathdata.Count = 1;
733 return InvalidParameter;
734 }
735
736 count = arc2polybezier(NULL, x, y, width, height, startAngle, sweepAngle);
737
738 if(count == 0)
739 return Ok;
740
741 ptf = GdipAlloc(sizeof(GpPointF)*count);
742 if(!ptf)
743 return OutOfMemory;
744
745 arc2polybezier(ptf, x, y, width, height, startAngle, sweepAngle);
746
747 status = GdipAddPathLine(path, x + width/2, y + height/2, ptf[0].X, ptf[0].Y);
748 if(status != Ok){
749 GdipFree(ptf);
750 return status;
751 }
752 /* one spline is already added as a line endpoint */
753 if(!lengthen_path(path, count - 1)){
754 GdipFree(ptf);
755 return OutOfMemory;
756 }
757
758 memcpy(&(path->pathdata.Points[path->pathdata.Count]), &(ptf[1]),sizeof(GpPointF)*(count-1));
759 for(i = 0; i < count-1; i++)
760 path->pathdata.Types[path->pathdata.Count+i] = PathPointTypeBezier;
761
762 path->pathdata.Count += count-1;
763
764 GdipClosePathFigure(path);
765
766 GdipFree(ptf);
767
768 return status;
769 }
770
771 GpStatus WINGDIPAPI GdipAddPathPieI(GpPath *path, INT x, INT y, INT width, INT height,
772 REAL startAngle, REAL sweepAngle)
773 {
774 TRACE("(%p, %d, %d, %d, %d, %.2f, %.2f)\n",
775 path, x, y, width, height, startAngle, sweepAngle);
776
777 return GdipAddPathPie(path, (REAL)x, (REAL)y, (REAL)width, (REAL)height, startAngle, sweepAngle);
778 }
779
780 GpStatus WINGDIPAPI GdipAddPathPolygon(GpPath *path, GDIPCONST GpPointF *points, INT count)
781 {
782 INT old_count;
783
784 TRACE("(%p, %p, %d)\n", path, points, count);
785
786 if(!path || !points || count < 3)
787 return InvalidParameter;
788
789 if(!lengthen_path(path, count))
790 return OutOfMemory;
791
792 old_count = path->pathdata.Count;
793
794 memcpy(&path->pathdata.Points[old_count], points, count*sizeof(GpPointF));
795 memset(&path->pathdata.Types[old_count + 1], PathPointTypeLine, count - 1);
796
797 /* A polygon is an intrinsic figure */
798 path->pathdata.Types[old_count] = PathPointTypeStart;
799 path->pathdata.Types[old_count + count - 1] |= PathPointTypeCloseSubpath;
800 path->newfigure = TRUE;
801 path->pathdata.Count += count;
802
803 return Ok;
804 }
805
806 GpStatus WINGDIPAPI GdipAddPathPolygonI(GpPath *path, GDIPCONST GpPoint *points, INT count)
807 {
808 GpPointF *ptf;
809 GpStatus status;
810 INT i;
811
812 TRACE("(%p, %p, %d)\n", path, points, count);
813
814 if(!points || count < 3)
815 return InvalidParameter;
816
817 ptf = GdipAlloc(sizeof(GpPointF) * count);
818 if(!ptf)
819 return OutOfMemory;
820
821 for(i = 0; i < count; i++){
822 ptf[i].X = (REAL)points[i].X;
823 ptf[i].Y = (REAL)points[i].Y;
824 }
825
826 status = GdipAddPathPolygon(path, ptf, count);
827
828 GdipFree(ptf);
829
830 return status;
831 }
832
833 static float fromfixedpoint(const FIXED v)
834 {
835 float f = ((float)v.fract) / (1<<(sizeof(v.fract)*8));
836 f += v.value;
837 return f;
838 }
839
840 struct format_string_args
841 {
842 GpPath *path;
843 float maxY;
844 float scale;
845 float ascent;
846 };
847
848 static GpStatus format_string_callback(HDC dc,
849 GDIPCONST WCHAR *string, INT index, INT length, GDIPCONST GpFont *font,
850 GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format,
851 INT lineno, const RectF *bounds, INT *underlined_indexes,
852 INT underlined_index_count, void *priv)
853 {
854 static const MAT2 identity = { {0,1}, {0,0}, {0,0}, {0,1} };
855 struct format_string_args *args = priv;
856 GpPath *path = args->path;
857 GpStatus status = Ok;
858 float x = rect->X + (bounds->X - rect->X) * args->scale;
859 float y = rect->Y + (bounds->Y - rect->Y) * args->scale;
860 int i;
861
862 if (underlined_index_count)
863 FIXME("hotkey underlines not drawn yet\n");
864
865 if (y + bounds->Height * args->scale > args->maxY)
866 args->maxY = y + bounds->Height * args->scale;
867
868 for (i = index; i < length; ++i)
869 {
870 GLYPHMETRICS gm;
871 TTPOLYGONHEADER *ph = NULL, *origph;
872 char *start;
873 DWORD len, ofs = 0;
874 len = GetGlyphOutlineW(dc, string[i], GGO_BEZIER, &gm, 0, NULL, &identity);
875 if (len == GDI_ERROR)
876 {
877 status = GenericError;
878 break;
879 }
880 origph = ph = GdipAlloc(len);
881 start = (char *)ph;
882 if (!ph || !lengthen_path(path, len / sizeof(POINTFX)))
883 {
884 status = OutOfMemory;
885 break;
886 }
887 GetGlyphOutlineW(dc, string[i], GGO_BEZIER, &gm, len, start, &identity);
888
889 ofs = 0;
890 while (ofs < len)
891 {
892 DWORD ofs_start = ofs;
893 ph = (TTPOLYGONHEADER*)&start[ofs];
894 path->pathdata.Types[path->pathdata.Count] = PathPointTypeStart;
895 path->pathdata.Points[path->pathdata.Count].X = x + fromfixedpoint(ph->pfxStart.x) * args->scale;
896 path->pathdata.Points[path->pathdata.Count++].Y = y + args->ascent - fromfixedpoint(ph->pfxStart.y) * args->scale;
897 TRACE("Starting at count %i with pos %f, %f)\n", path->pathdata.Count, x, y);
898 ofs += sizeof(*ph);
899 while (ofs - ofs_start < ph->cb)
900 {
901 TTPOLYCURVE *curve = (TTPOLYCURVE*)&start[ofs];
902 int j;
903 ofs += sizeof(TTPOLYCURVE) + (curve->cpfx - 1) * sizeof(POINTFX);
904
905 switch (curve->wType)
906 {
907 case TT_PRIM_LINE:
908 for (j = 0; j < curve->cpfx; ++j)
909 {
910 path->pathdata.Types[path->pathdata.Count] = PathPointTypeLine;
911 path->pathdata.Points[path->pathdata.Count].X = x + fromfixedpoint(curve->apfx[j].x) * args->scale;
912 path->pathdata.Points[path->pathdata.Count++].Y = y + args->ascent - fromfixedpoint(curve->apfx[j].y) * args->scale;
913 }
914 break;
915 case TT_PRIM_CSPLINE:
916 for (j = 0; j < curve->cpfx; ++j)
917 {
918 path->pathdata.Types[path->pathdata.Count] = PathPointTypeBezier;
919 path->pathdata.Points[path->pathdata.Count].X = x + fromfixedpoint(curve->apfx[j].x) * args->scale;
920 path->pathdata.Points[path->pathdata.Count++].Y = y + args->ascent - fromfixedpoint(curve->apfx[j].y) * args->scale;
921 }
922 break;
923 default:
924 ERR("Unhandled type: %u\n", curve->wType);
925 status = GenericError;
926 }
927 }
928 path->pathdata.Types[path->pathdata.Count - 1] |= PathPointTypeCloseSubpath;
929 }
930 path->newfigure = TRUE;
931 x += gm.gmCellIncX * args->scale;
932 y += gm.gmCellIncY * args->scale;
933
934 GdipFree(origph);
935 if (status != Ok)
936 break;
937 }
938
939 return status;
940 }
941
942 GpStatus WINGDIPAPI GdipAddPathString(GpPath* path, GDIPCONST WCHAR* string, INT length, GDIPCONST GpFontFamily* family, INT style, REAL emSize, GDIPCONST RectF* layoutRect, GDIPCONST GpStringFormat* format)
943 {
944 GpFont *font;
945 GpStatus status;
946 LOGFONTW lfw;
947 HANDLE hfont;
948 HDC dc;
949 GpGraphics *graphics;
950 GpPath *backup;
951 struct format_string_args args;
952 int i;
953 UINT16 native_height;
954 RectF scaled_layout_rect;
955 TEXTMETRICW textmetric;
956
957 TRACE("(%p, %s, %d, %p, %d, %f, %p, %p)\n", path, debugstr_w(string), length, family, style, emSize, layoutRect, format);
958 if (!path || !string || !family || !emSize || !layoutRect || !format)
959 return InvalidParameter;
960
961 status = GdipGetEmHeight(family, style, &native_height);
962 if (status != Ok)
963 return status;
964
965 scaled_layout_rect.X = layoutRect->X;
966 scaled_layout_rect.Y = layoutRect->Y;
967 scaled_layout_rect.Width = layoutRect->Width * native_height / emSize;
968 scaled_layout_rect.Height = layoutRect->Height * native_height / emSize;
969
970 if ((status = GdipClonePath(path, &backup)) != Ok)
971 return status;
972
973 dc = CreateCompatibleDC(0);
974 status = GdipCreateFromHDC(dc, &graphics);
975 if (status != Ok)
976 {
977 DeleteDC(dc);
978 GdipDeletePath(backup);
979 return status;
980 }
981
982 status = GdipCreateFont(family, native_height, style, UnitPixel, &font);
983 if (status != Ok)
984 {
985 GdipDeleteGraphics(graphics);
986 DeleteDC(dc);
987 GdipDeletePath(backup);
988 return status;
989 }
990
991 get_log_fontW(font, graphics, &lfw);
992 GdipDeleteFont(font);
993 GdipDeleteGraphics(graphics);
994
995 hfont = CreateFontIndirectW(&lfw);
996 if (!hfont)
997 {
998 WARN("Failed to create font\n");
999 DeleteDC(dc);
1000 GdipDeletePath(backup);
1001 return GenericError;
1002 }
1003
1004 SelectObject(dc, hfont);
1005
1006 GetTextMetricsW(dc, &textmetric);
1007
1008 args.path = path;
1009 args.maxY = 0;
1010 args.scale = emSize / native_height;
1011 args.ascent = textmetric.tmAscent * args.scale;
1012 status = gdip_format_string(dc, string, length, NULL, &scaled_layout_rect,
1013 format, TRUE, format_string_callback, &args);
1014
1015 DeleteDC(dc);
1016 DeleteObject(hfont);
1017
1018 if (status != Ok) /* free backup */
1019 {
1020 GdipFree(path->pathdata.Points);
1021 GdipFree(path->pathdata.Types);
1022 *path = *backup;
1023 GdipFree(backup);
1024 return status;
1025 }
1026 if (format && format->vertalign == StringAlignmentCenter && layoutRect->Y + args.maxY < layoutRect->Height)
1027 {
1028 float inc = layoutRect->Height + layoutRect->Y - args.maxY;
1029 inc /= 2;
1030 for (i = backup->pathdata.Count; i < path->pathdata.Count; ++i)
1031 path->pathdata.Points[i].Y += inc;
1032 } else if (format && format->vertalign == StringAlignmentFar) {
1033 float inc = layoutRect->Height + layoutRect->Y - args.maxY;
1034 for (i = backup->pathdata.Count; i < path->pathdata.Count; ++i)
1035 path->pathdata.Points[i].Y += inc;
1036 }
1037 GdipDeletePath(backup);
1038 return status;
1039 }
1040
1041 GpStatus WINGDIPAPI GdipAddPathStringI(GpPath* path, GDIPCONST WCHAR* string, INT length, GDIPCONST GpFontFamily* family, INT style, REAL emSize, GDIPCONST Rect* layoutRect, GDIPCONST GpStringFormat* format)
1042 {
1043 if (layoutRect)
1044 {
1045 RectF layoutRectF = {
1046 (REAL)layoutRect->X,
1047 (REAL)layoutRect->Y,
1048 (REAL)layoutRect->Width,
1049 (REAL)layoutRect->Height
1050 };
1051 return GdipAddPathString(path, string, length, family, style, emSize, &layoutRectF, format);
1052 }
1053 return InvalidParameter;
1054 }
1055
1056 GpStatus WINGDIPAPI GdipClonePath(GpPath* path, GpPath **clone)
1057 {
1058 TRACE("(%p, %p)\n", path, clone);
1059
1060 if(!path || !clone)
1061 return InvalidParameter;
1062
1063 *clone = GdipAlloc(sizeof(GpPath));
1064 if(!*clone) return OutOfMemory;
1065
1066 **clone = *path;
1067
1068 (*clone)->pathdata.Points = GdipAlloc(path->datalen * sizeof(PointF));
1069 (*clone)->pathdata.Types = GdipAlloc(path->datalen);
1070 if(!(*clone)->pathdata.Points || !(*clone)->pathdata.Types){
1071 GdipFree((*clone)->pathdata.Points);
1072 GdipFree((*clone)->pathdata.Types);
1073 GdipFree(*clone);
1074 return OutOfMemory;
1075 }
1076
1077 memcpy((*clone)->pathdata.Points, path->pathdata.Points,
1078 path->datalen * sizeof(PointF));
1079 memcpy((*clone)->pathdata.Types, path->pathdata.Types, path->datalen);
1080
1081 return Ok;
1082 }
1083
1084 GpStatus WINGDIPAPI GdipClosePathFigure(GpPath* path)
1085 {
1086 TRACE("(%p)\n", path);
1087
1088 if(!path)
1089 return InvalidParameter;
1090
1091 if(path->pathdata.Count > 0){
1092 path->pathdata.Types[path->pathdata.Count - 1] |= PathPointTypeCloseSubpath;
1093 path->newfigure = TRUE;
1094 }
1095
1096 return Ok;
1097 }
1098
1099 GpStatus WINGDIPAPI GdipClosePathFigures(GpPath* path)
1100 {
1101 INT i;
1102
1103 TRACE("(%p)\n", path);
1104
1105 if(!path)
1106 return InvalidParameter;
1107
1108 for(i = 1; i < path->pathdata.Count; i++){
1109 if(path->pathdata.Types[i] == PathPointTypeStart)
1110 path->pathdata.Types[i-1] |= PathPointTypeCloseSubpath;
1111 }
1112
1113 path->newfigure = TRUE;
1114
1115 return Ok;
1116 }
1117
1118 GpStatus WINGDIPAPI GdipCreatePath(GpFillMode fill, GpPath **path)
1119 {
1120 TRACE("(%d, %p)\n", fill, path);
1121
1122 if(!path)
1123 return InvalidParameter;
1124
1125 *path = GdipAlloc(sizeof(GpPath));
1126 if(!*path) return OutOfMemory;
1127
1128 (*path)->fill = fill;
1129 (*path)->newfigure = TRUE;
1130
1131 return Ok;
1132 }
1133
1134 GpStatus WINGDIPAPI GdipCreatePath2(GDIPCONST GpPointF* points,
1135 GDIPCONST BYTE* types, INT count, GpFillMode fill, GpPath **path)
1136 {
1137 TRACE("(%p, %p, %d, %d, %p)\n", points, types, count, fill, path);
1138
1139 if(!path)
1140 return InvalidParameter;
1141
1142 *path = GdipAlloc(sizeof(GpPath));
1143 if(!*path) return OutOfMemory;
1144
1145 (*path)->pathdata.Points = GdipAlloc(count * sizeof(PointF));
1146 (*path)->pathdata.Types = GdipAlloc(count);
1147
1148 if(!(*path)->pathdata.Points || !(*path)->pathdata.Types){
1149 GdipFree((*path)->pathdata.Points);
1150 GdipFree((*path)->pathdata.Types);
1151 GdipFree(*path);
1152 return OutOfMemory;
1153 }
1154
1155 memcpy((*path)->pathdata.Points, points, count * sizeof(PointF));
1156 memcpy((*path)->pathdata.Types, types, count);
1157 (*path)->pathdata.Count = count;
1158 (*path)->datalen = count;
1159
1160 (*path)->fill = fill;
1161 (*path)->newfigure = TRUE;
1162
1163 return Ok;
1164 }
1165
1166 GpStatus WINGDIPAPI GdipCreatePath2I(GDIPCONST GpPoint* points,
1167 GDIPCONST BYTE* types, INT count, GpFillMode fill, GpPath **path)
1168 {
1169 GpPointF *ptF;
1170 GpStatus ret;
1171 INT i;
1172
1173 TRACE("(%p, %p, %d, %d, %p)\n", points, types, count, fill, path);
1174
1175 ptF = GdipAlloc(sizeof(GpPointF)*count);
1176
1177 for(i = 0;i < count; i++){
1178 ptF[i].X = (REAL)points[i].X;
1179 ptF[i].Y = (REAL)points[i].Y;
1180 }
1181
1182 ret = GdipCreatePath2(ptF, types, count, fill, path);
1183
1184 GdipFree(ptF);
1185
1186 return ret;
1187 }
1188
1189 GpStatus WINGDIPAPI GdipDeletePath(GpPath *path)
1190 {
1191 TRACE("(%p)\n", path);
1192
1193 if(!path)
1194 return InvalidParameter;
1195
1196 GdipFree(path->pathdata.Points);
1197 GdipFree(path->pathdata.Types);
1198 GdipFree(path);
1199
1200 return Ok;
1201 }
1202
1203 GpStatus WINGDIPAPI GdipFlattenPath(GpPath *path, GpMatrix* matrix, REAL flatness)
1204 {
1205 path_list_node_t *list, *node;
1206 GpPointF pt;
1207 INT i = 1;
1208 INT startidx = 0;
1209 GpStatus stat;
1210
1211 TRACE("(%p, %p, %.2f)\n", path, matrix, flatness);
1212
1213 if(!path)
1214 return InvalidParameter;
1215
1216 if(path->pathdata.Count == 0)
1217 return Ok;
1218
1219 if(matrix){
1220 stat = GdipTransformPath(path, matrix);
1221 if (stat != Ok)
1222 return stat;
1223 }
1224
1225 pt = path->pathdata.Points[0];
1226 if(!init_path_list(&list, pt.X, pt.Y))
1227 return OutOfMemory;
1228
1229 node = list;
1230
1231 while(i < path->pathdata.Count){
1232
1233 BYTE type = path->pathdata.Types[i] & PathPointTypePathTypeMask;
1234 path_list_node_t *start;
1235
1236 pt = path->pathdata.Points[i];
1237
1238 /* save last start point index */
1239 if(type == PathPointTypeStart)
1240 startidx = i;
1241
1242 /* always add line points and start points */
1243 if((type == PathPointTypeStart) || (type == PathPointTypeLine)){
1244 if(!add_path_list_node(node, pt.X, pt.Y, path->pathdata.Types[i]))
1245 goto memout;
1246
1247 node = node->next;
1248 ++i;
1249 continue;
1250 }
1251
1252 /* Bezier curve */
1253
1254 /* test for closed figure */
1255 if(path->pathdata.Types[i+1] & PathPointTypeCloseSubpath){
1256 pt = path->pathdata.Points[startidx];
1257 ++i;
1258 }
1259 else
1260 {
1261 i += 2;
1262 pt = path->pathdata.Points[i];
1263 };
1264
1265 start = node;
1266 /* add Bezier end point */
1267 type = (path->pathdata.Types[i] & ~PathPointTypePathTypeMask) | PathPointTypeLine;
1268 if(!add_path_list_node(node, pt.X, pt.Y, type))
1269 goto memout;
1270 node = node->next;
1271
1272 /* flatten curve */
1273 if(!flatten_bezier(start, path->pathdata.Points[i-2].X, path->pathdata.Points[i-2].Y,
1274 path->pathdata.Points[i-1].X, path->pathdata.Points[i-1].Y,
1275 node, flatness))
1276 goto memout;
1277
1278 ++i;
1279 }/* while */
1280
1281 /* store path data back */
1282 i = path_list_count(list);
1283 if(!lengthen_path(path, i))
1284 goto memout;
1285 path->pathdata.Count = i;
1286
1287 node = list;
1288 for(i = 0; i < path->pathdata.Count; i++){
1289 path->pathdata.Points[i] = node->pt;
1290 path->pathdata.Types[i] = node->type;
1291 node = node->next;
1292 }
1293
1294 free_path_list(list);
1295 return Ok;
1296
1297 memout:
1298 free_path_list(list);
1299 return OutOfMemory;
1300 }
1301
1302 GpStatus WINGDIPAPI GdipGetPathData(GpPath *path, GpPathData* pathData)
1303 {
1304 TRACE("(%p, %p)\n", path, pathData);
1305
1306 if(!path || !pathData)
1307 return InvalidParameter;
1308
1309 /* Only copy data. pathData allocation/freeing controlled by wrapper class.
1310 Assumed that pathData is enough wide to get all data - controlled by wrapper too. */
1311 memcpy(pathData->Points, path->pathdata.Points, sizeof(PointF) * pathData->Count);
1312 memcpy(pathData->Types , path->pathdata.Types , pathData->Count);
1313
1314 return Ok;
1315 }
1316
1317 GpStatus WINGDIPAPI GdipGetPathFillMode(GpPath *path, GpFillMode *fillmode)
1318 {
1319 TRACE("(%p, %p)\n", path, fillmode);
1320
1321 if(!path || !fillmode)
1322 return InvalidParameter;
1323
1324 *fillmode = path->fill;
1325
1326 return Ok;
1327 }
1328
1329 GpStatus WINGDIPAPI GdipGetPathLastPoint(GpPath* path, GpPointF* lastPoint)
1330 {
1331 INT count;
1332
1333 TRACE("(%p, %p)\n", path, lastPoint);
1334
1335 if(!path || !lastPoint)
1336 return InvalidParameter;
1337
1338 count = path->pathdata.Count;
1339 if(count > 0)
1340 *lastPoint = path->pathdata.Points[count-1];
1341
1342 return Ok;
1343 }
1344
1345 GpStatus WINGDIPAPI GdipGetPathPoints(GpPath *path, GpPointF* points, INT count)
1346 {
1347 TRACE("(%p, %p, %d)\n", path, points, count);
1348
1349 if(!path)
1350 return InvalidParameter;
1351
1352 if(count < path->pathdata.Count)
1353 return InsufficientBuffer;
1354
1355 memcpy(points, path->pathdata.Points, path->pathdata.Count * sizeof(GpPointF));
1356
1357 return Ok;
1358 }
1359
1360 GpStatus WINGDIPAPI GdipGetPathPointsI(GpPath *path, GpPoint* points, INT count)
1361 {
1362 GpStatus ret;
1363 GpPointF *ptf;
1364 INT i;
1365
1366 TRACE("(%p, %p, %d)\n", path, points, count);
1367
1368 if(count <= 0)
1369 return InvalidParameter;
1370
1371 ptf = GdipAlloc(sizeof(GpPointF)*count);
1372 if(!ptf) return OutOfMemory;
1373
1374 ret = GdipGetPathPoints(path,ptf,count);
1375 if(ret == Ok)
1376 for(i = 0;i < count;i++){
1377 points[i].X = gdip_round(ptf[i].X);
1378 points[i].Y = gdip_round(ptf[i].Y);
1379 };
1380 GdipFree(ptf);
1381
1382 return ret;
1383 }
1384
1385 GpStatus WINGDIPAPI GdipGetPathTypes(GpPath *path, BYTE* types, INT count)
1386 {
1387 TRACE("(%p, %p, %d)\n", path, types, count);
1388
1389 if(!path)
1390 return InvalidParameter;
1391
1392 if(count < path->pathdata.Count)
1393 return InsufficientBuffer;
1394
1395 memcpy(types, path->pathdata.Types, path->pathdata.Count);
1396
1397 return Ok;
1398 }
1399
1400 /* Windows expands the bounding box to the maximum possible bounding box
1401 * for a given pen. For example, if a line join can extend past the point
1402 * it's joining by x units, the bounding box is extended by x units in every
1403 * direction (even though this is too conservative for most cases). */
1404 GpStatus WINGDIPAPI GdipGetPathWorldBounds(GpPath* path, GpRectF* bounds,
1405 GDIPCONST GpMatrix *matrix, GDIPCONST GpPen *pen)
1406 {
1407 GpPointF * points, temp_pts[4];
1408 INT count, i;
1409 REAL path_width = 1.0, width, height, temp, low_x, low_y, high_x, high_y;
1410
1411 TRACE("(%p, %p, %p, %p)\n", path, bounds, matrix, pen);
1412
1413 /* Matrix and pen can be null. */
1414 if(!path || !bounds)
1415 return InvalidParameter;
1416
1417 /* If path is empty just return. */
1418 count = path->pathdata.Count;
1419 if(count == 0){
1420 bounds->X = bounds->Y = bounds->Width = bounds->Height = 0.0;
1421 return Ok;
1422 }
1423
1424 points = path->pathdata.Points;
1425
1426 low_x = high_x = points[0].X;
1427 low_y = high_y = points[0].Y;
1428
1429 for(i = 1; i < count; i++){
1430 low_x = min(low_x, points[i].X);
1431 low_y = min(low_y, points[i].Y);
1432 high_x = max(high_x, points[i].X);
1433 high_y = max(high_y, points[i].Y);
1434 }
1435
1436 width = high_x - low_x;
1437 height = high_y - low_y;
1438
1439 /* This looks unusual but it's the only way I can imitate windows. */
1440 if(matrix){
1441 temp_pts[0].X = low_x;
1442 temp_pts[0].Y = low_y;
1443 temp_pts[1].X = low_x;
1444 temp_pts[1].Y = high_y;
1445 temp_pts[2].X = high_x;
1446 temp_pts[2].Y = high_y;
1447 temp_pts[3].X = high_x;
1448 temp_pts[3].Y = low_y;
1449
1450 GdipTransformMatrixPoints((GpMatrix*)matrix, temp_pts, 4);
1451 low_x = temp_pts[0].X;
1452 low_y = temp_pts[0].Y;
1453
1454 for(i = 1; i < 4; i++){
1455 low_x = min(low_x, temp_pts[i].X);
1456 low_y = min(low_y, temp_pts[i].Y);
1457 }
1458
1459 temp = width;
1460 width = height * fabs(matrix->matrix[2]) + width * fabs(matrix->matrix[0]);
1461 height = height * fabs(matrix->matrix[3]) + temp * fabs(matrix->matrix[1]);
1462 }
1463
1464 if(pen){
1465 path_width = pen->width / 2.0;
1466
1467 if(count > 2)
1468 path_width = max(path_width, pen->width * pen->miterlimit / 2.0);
1469 /* FIXME: this should probably also check for the startcap */
1470 if(pen->endcap & LineCapNoAnchor)
1471 path_width = max(path_width, pen->width * 2.2);
1472
1473 low_x -= path_width;
1474 low_y -= path_width;
1475 width += 2.0 * path_width;
1476 height += 2.0 * path_width;
1477 }
1478
1479 bounds->X = low_x;
1480 bounds->Y = low_y;
1481 bounds->Width = width;
1482 bounds->Height = height;
1483
1484 return Ok;
1485 }
1486
1487 GpStatus WINGDIPAPI GdipGetPathWorldBoundsI(GpPath* path, GpRect* bounds,
1488 GDIPCONST GpMatrix *matrix, GDIPCONST GpPen *pen)
1489 {
1490 GpStatus ret;
1491 GpRectF boundsF;
1492
1493 TRACE("(%p, %p, %p, %p)\n", path, bounds, matrix, pen);
1494
1495 ret = GdipGetPathWorldBounds(path,&boundsF,matrix,pen);
1496
1497 if(ret == Ok){
1498 bounds->X = gdip_round(boundsF.X);
1499 bounds->Y = gdip_round(boundsF.Y);
1500 bounds->Width = gdip_round(boundsF.Width);
1501 bounds->Height = gdip_round(boundsF.Height);
1502 }
1503
1504 return ret;
1505 }
1506
1507 GpStatus WINGDIPAPI GdipGetPointCount(GpPath *path, INT *count)
1508 {
1509 TRACE("(%p, %p)\n", path, count);
1510
1511 if(!path)
1512 return InvalidParameter;
1513
1514 *count = path->pathdata.Count;
1515
1516 return Ok;
1517 }
1518
1519 GpStatus WINGDIPAPI GdipReversePath(GpPath* path)
1520 {
1521 INT i, count;
1522 INT start = 0; /* position in reversed path */
1523 GpPathData revpath;
1524
1525 TRACE("(%p)\n", path);
1526
1527 if(!path)
1528 return InvalidParameter;
1529
1530 count = path->pathdata.Count;
1531
1532 if(count == 0) return Ok;
1533
1534 revpath.Points = GdipAlloc(sizeof(GpPointF)*count);
1535 revpath.Types = GdipAlloc(sizeof(BYTE)*count);
1536 revpath.Count = count;
1537 if(!revpath.Points || !revpath.Types){
1538 GdipFree(revpath.Points);
1539 GdipFree(revpath.Types);
1540 return OutOfMemory;
1541 }
1542
1543 for(i = 0; i < count; i++){
1544
1545 /* find next start point */
1546 if(path->pathdata.Types[count-i-1] == PathPointTypeStart){
1547 INT j;
1548 for(j = start; j <= i; j++){
1549 revpath.Points[j] = path->pathdata.Points[count-j-1];
1550 revpath.Types[j] = path->pathdata.Types[count-j-1];
1551 }
1552 /* mark start point */
1553 revpath.Types[start] = PathPointTypeStart;
1554 /* set 'figure' endpoint type */
1555 if(i-start > 1){
1556 revpath.Types[i] = path->pathdata.Types[count-start-1] & ~PathPointTypePathTypeMask;
1557 revpath.Types[i] |= revpath.Types[i-1];
1558 }
1559 else
1560 revpath.Types[i] = path->pathdata.Types[start];
1561
1562 start = i+1;
1563 }
1564 }
1565
1566 memcpy(path->pathdata.Points, revpath.Points, sizeof(GpPointF)*count);
1567 memcpy(path->pathdata.Types, revpath.Types, sizeof(BYTE)*count);
1568
1569 GdipFree(revpath.Points);
1570 GdipFree(revpath.Types);
1571
1572 return Ok;
1573 }
1574
1575 GpStatus WINGDIPAPI GdipIsOutlineVisiblePathPointI(GpPath* path, INT x, INT y,
1576 GpPen *pen, GpGraphics *graphics, BOOL *result)
1577 {
1578 TRACE("(%p, %d, %d, %p, %p, %p)\n", path, x, y, pen, graphics, result);
1579
1580 return GdipIsOutlineVisiblePathPoint(path, x, y, pen, graphics, result);
1581 }
1582
1583 GpStatus WINGDIPAPI GdipIsOutlineVisiblePathPoint(GpPath* path, REAL x, REAL y,
1584 GpPen *pen, GpGraphics *graphics, BOOL *result)
1585 {
1586 static int calls;
1587
1588 TRACE("(%p,%0.2f,%0.2f,%p,%p,%p)\n", path, x, y, pen, graphics, result);
1589
1590 if(!path || !pen)
1591 return InvalidParameter;
1592
1593 if(!(calls++))
1594 FIXME("not implemented\n");
1595
1596 return NotImplemented;
1597 }
1598
1599 GpStatus WINGDIPAPI GdipIsVisiblePathPointI(GpPath* path, INT x, INT y, GpGraphics *graphics, BOOL *result)
1600 {
1601 TRACE("(%p, %d, %d, %p, %p)\n", path, x, y, graphics, result);
1602
1603 return GdipIsVisiblePathPoint(path, x, y, graphics, result);
1604 }
1605
1606 /*****************************************************************************
1607 * GdipIsVisiblePathPoint [GDIPLUS.@]
1608 */
1609 GpStatus WINGDIPAPI GdipIsVisiblePathPoint(GpPath* path, REAL x, REAL y, GpGraphics *graphics, BOOL *result)
1610 {
1611 GpRegion *region;
1612 HRGN hrgn;
1613 GpStatus status;
1614
1615 if(!path || !result) return InvalidParameter;
1616
1617 status = GdipCreateRegionPath(path, &region);
1618 if(status != Ok)
1619 return status;
1620
1621 status = GdipGetRegionHRgn(region, graphics, &hrgn);
1622 if(status != Ok){
1623 GdipDeleteRegion(region);
1624 return status;
1625 }
1626
1627 *result = PtInRegion(hrgn, gdip_round(x), gdip_round(y));
1628
1629 DeleteObject(hrgn);
1630 GdipDeleteRegion(region);
1631
1632 return Ok;
1633 }
1634
1635 GpStatus WINGDIPAPI GdipStartPathFigure(GpPath *path)
1636 {
1637 TRACE("(%p)\n", path);
1638
1639 if(!path)
1640 return InvalidParameter;
1641
1642 path->newfigure = TRUE;
1643
1644 return Ok;
1645 }
1646
1647 GpStatus WINGDIPAPI GdipResetPath(GpPath *path)
1648 {
1649 TRACE("(%p)\n", path);
1650
1651 if(!path)
1652 return InvalidParameter;
1653
1654 path->pathdata.Count = 0;
1655 path->newfigure = TRUE;
1656 path->fill = FillModeAlternate;
1657
1658 return Ok;
1659 }
1660
1661 GpStatus WINGDIPAPI GdipSetPathFillMode(GpPath *path, GpFillMode fill)
1662 {
1663 TRACE("(%p, %d)\n", path, fill);
1664
1665 if(!path)
1666 return InvalidParameter;
1667
1668 path->fill = fill;
1669
1670 return Ok;
1671 }
1672
1673 GpStatus WINGDIPAPI GdipTransformPath(GpPath *path, GpMatrix *matrix)
1674 {
1675 TRACE("(%p, %p)\n", path, matrix);
1676
1677 if(!path)
1678 return InvalidParameter;
1679
1680 if(path->pathdata.Count == 0)
1681 return Ok;
1682
1683 return GdipTransformMatrixPoints(matrix, path->pathdata.Points,
1684 path->pathdata.Count);
1685 }
1686
1687 GpStatus WINGDIPAPI GdipWarpPath(GpPath *path, GpMatrix* matrix,
1688 GDIPCONST GpPointF *points, INT count, REAL x, REAL y, REAL width,
1689 REAL height, WarpMode warpmode, REAL flatness)
1690 {
1691 FIXME("(%p,%p,%p,%i,%0.2f,%0.2f,%0.2f,%0.2f,%i,%0.2f)\n", path, matrix,
1692 points, count, x, y, width, height, warpmode, flatness);
1693
1694 return NotImplemented;
1695 }
1696
1697 static void add_bevel_point(const GpPointF *endpoint, const GpPointF *nextpoint,
1698 GpPen *pen, int right_side, path_list_node_t **last_point)
1699 {
1700 REAL segment_dy = nextpoint->Y-endpoint->Y;
1701 REAL segment_dx = nextpoint->X-endpoint->X;
1702 REAL segment_length = sqrtf(segment_dy*segment_dy + segment_dx*segment_dx);
1703 REAL distance = pen->width/2.0;
1704 REAL bevel_dx, bevel_dy;
1705
1706 if (segment_length == 0.0)
1707 {
1708 *last_point = add_path_list_node(*last_point, endpoint->X,
1709 endpoint->Y, PathPointTypeLine);
1710 return;
1711 }
1712
1713 if (right_side)
1714 {
1715 bevel_dx = -distance * segment_dy / segment_length;
1716 bevel_dy = distance * segment_dx / segment_length;
1717 }
1718 else
1719 {
1720 bevel_dx = distance * segment_dy / segment_length;
1721 bevel_dy = -distance * segment_dx / segment_length;
1722 }
1723
1724 *last_point = add_path_list_node(*last_point, endpoint->X + bevel_dx,
1725 endpoint->Y + bevel_dy, PathPointTypeLine);
1726 }
1727
1728 static void widen_joint(const GpPointF *p1, const GpPointF *p2, const GpPointF *p3,
1729 GpPen* pen, path_list_node_t **last_point)
1730 {
1731 switch (pen->join)
1732 {
1733 case LineJoinMiter:
1734 case LineJoinMiterClipped:
1735 if ((p2->X - p1->X) * (p3->Y - p1->Y) > (p2->Y - p1->Y) * (p3->X - p1->X))
1736 {
1737 float distance = pen->width/2.0;
1738 float length_0 = sqrtf((p2->X-p1->X)*(p2->X-p1->X)+(p2->Y-p1->Y)*(p2->Y-p1->Y));
1739 float length_1 = sqrtf((p3->X-p2->X)*(p3->X-p2->X)+(p3->Y-p2->Y)*(p3->Y-p2->Y));
1740 float dx0 = distance * (p2->X - p1->X) / length_0;
1741 float dy0 = distance * (p2->Y - p1->Y) / length_0;
1742 float dx1 = distance * (p3->X - p2->X) / length_1;
1743 float dy1 = distance * (p3->Y - p2->Y) / length_1;
1744 float det = (dy0*dx1 - dx0*dy1);
1745 float dx = (dx0*dx1*(dx0-dx1) + dy0*dy0*dx1 - dy1*dy1*dx0)/det;
1746 float dy = (dy0*dy1*(dy0-dy1) + dx0*dx0*dy1 - dx1*dx1*dy0)/det;
1747 if (dx*dx + dy*dy < pen->miterlimit*pen->miterlimit * distance*distance)
1748 {
1749 *last_point = add_path_list_node(*last_point, p2->X + dx,
1750 p2->Y + dy, PathPointTypeLine);
1751 break;
1752 }
1753 else if (pen->join == LineJoinMiter)
1754 {
1755 static int once;
1756 if (!once++)
1757 FIXME("should add a clipped corner\n");
1758 }
1759 /* else fall-through */
1760 }
1761 /* else fall-through */
1762 default:
1763 case LineJoinBevel:
1764 add_bevel_point(p2, p1, pen, 1, last_point);
1765 add_bevel_point(p2, p3, pen, 0, last_point);
1766 break;
1767 }
1768 }
1769
1770 static void widen_cap(const GpPointF *endpoint, const GpPointF *nextpoint,
1771 GpPen *pen, GpLineCap cap, GpCustomLineCap *custom, int add_first_points,
1772 int add_last_point, path_list_node_t **last_point)
1773 {
1774 switch (cap)
1775 {
1776 default:
1777 case LineCapFlat:
1778 if (add_first_points)
1779 add_bevel_point(endpoint, nextpoint, pen, 1, last_point);
1780 if (add_last_point)
1781 add_bevel_point(endpoint, nextpoint, pen, 0, last_point);
1782 break;
1783 case LineCapSquare:
1784 {
1785 REAL segment_dy = nextpoint->Y-endpoint->Y;
1786 REAL segment_dx = nextpoint->X-endpoint->X;
1787 REAL segment_length = sqrtf(segment_dy*segment_dy + segment_dx*segment_dx);
1788 REAL distance = pen->width/2.0;
1789 REAL bevel_dx, bevel_dy;
1790 REAL extend_dx, extend_dy;
1791
1792 extend_dx = -distance * segment_dx / segment_length;
1793 extend_dy = -distance * segment_dy / segment_length;
1794
1795 bevel_dx = -distance * segment_dy / segment_length;
1796 bevel_dy = distance * segment_dx / segment_length;
1797
1798 if (add_first_points)
1799 *last_point = add_path_list_node(*last_point, endpoint->X + extend_dx + bevel_dx,
1800 endpoint->Y + extend_dy + bevel_dy, PathPointTypeLine);
1801
1802 if (add_last_point)
1803 *last_point = add_path_list_node(*last_point, endpoint->X + extend_dx - bevel_dx,
1804 endpoint->Y + extend_dy - bevel_dy, PathPointTypeLine);
1805
1806 break;
1807 }
1808 case LineCapRound:
1809 {
1810 REAL segment_dy = nextpoint->Y-endpoint->Y;
1811 REAL segment_dx = nextpoint->X-endpoint->X;
1812 REAL segment_length = sqrtf(segment_dy*segment_dy + segment_dx*segment_dx);
1813 REAL distance = pen->width/2.0;
1814 REAL dx, dy, dx2, dy2;
1815 const REAL control_point_distance = 0.5522847498307935; /* 4/3 * (sqrt(2) - 1) */
1816
1817 if (add_first_points)
1818 {
1819 dx = -distance * segment_dx / segment_length;
1820 dy = -distance * segment_dy / segment_length;
1821
1822 dx2 = dx * control_point_distance;
1823 dy2 = dy * control_point_distance;
1824
1825 /* first 90-degree arc */
1826 *last_point = add_path_list_node(*last_point, endpoint->X + dy,
1827 endpoint->Y - dx, PathPointTypeLine);
1828
1829 *last_point = add_path_list_node(*last_point, endpoint->X + dy + dx2,
1830 endpoint->Y - dx + dy2, PathPointTypeBezier);
1831
1832 *last_point = add_path_list_node(*last_point, endpoint->X + dx + dy2,
1833 endpoint->Y + dy - dx2, PathPointTypeBezier);
1834
1835 /* midpoint */
1836 *last_point = add_path_list_node(*last_point, endpoint->X + dx,
1837 endpoint->Y + dy, PathPointTypeBezier);
1838
1839 /* second 90-degree arc */
1840 *last_point = add_path_list_node(*last_point, endpoint->X + dx - dy2,
1841 endpoint->Y + dy + dx2, PathPointTypeBezier);
1842
1843 *last_point = add_path_list_node(*last_point, endpoint->X - dy + dx2,
1844 endpoint->Y + dx + dy2, PathPointTypeBezier);
1845
1846 *last_point = add_path_list_node(*last_point, endpoint->X - dy,
1847 endpoint->Y + dx, PathPointTypeBezier);
1848 }
1849 break;
1850 }
1851 }
1852 }
1853
1854 static void widen_open_figure(const GpPointF *points, GpPen *pen, int start, int end,
1855 GpLineCap start_cap, GpCustomLineCap *start_custom, GpLineCap end_cap,
1856 GpCustomLineCap *end_custom, path_list_node_t **last_point)
1857 {
1858 int i;
1859 path_list_node_t *prev_point;
1860
1861 if (end <= start)
1862 return;
1863
1864 prev_point = *last_point;
1865
1866 widen_cap(&points[start], &points[start+1],
1867 pen, start_cap, start_custom, FALSE, TRUE, last_point);
1868
1869 for (i=start+1; i<end; i++)
1870 widen_joint(&points[i-1], &points[i],
1871 &points[i+1], pen, last_point);
1872
1873 widen_cap(&points[end], &points[end-1],
1874 pen, end_cap, end_custom, TRUE, TRUE, last_point);
1875
1876 for (i=end-1; i>start; i--)
1877 widen_joint(&points[i+1], &points[i],
1878 &points[i-1], pen, last_point);
1879
1880 widen_cap(&points[start], &points[start+1],
1881 pen, start_cap, start_custom, TRUE, FALSE, last_point);
1882
1883 prev_point->next->type = PathPointTypeStart;
1884 (*last_point)->type |= PathPointTypeCloseSubpath;
1885 }
1886
1887 static void widen_closed_figure(GpPath *path, GpPen *pen, int start, int end,
1888 path_list_node_t **last_point)
1889 {
1890 int i;
1891 path_list_node_t *prev_point;
1892
1893 if (end <= start+1)
1894 return;
1895
1896 /* left outline */
1897 prev_point = *last_point;
1898
1899 widen_joint(&path->pathdata.Points[end], &path->pathdata.Points[start],
1900 &path->pathdata.Points[start+1], pen, last_point);
1901
1902 for (i=start+1; i<end; i++)
1903 widen_joint(&path->pathdata.Points[i-1], &path->pathdata.Points[i],
1904 &path->pathdata.Points[i+1], pen, last_point);
1905
1906 widen_joint(&path->pathdata.Points[end-1], &path->pathdata.Points[end],
1907 &path->pathdata.Points[start], pen, last_point);
1908
1909 prev_point->next->type = PathPointTypeStart;
1910 (*last_point)->type |= PathPointTypeCloseSubpath;
1911
1912 /* right outline */
1913 prev_point = *last_point;
1914
1915 widen_joint(&path->pathdata.Points[start], &path->pathdata.Points[end],
1916 &path->pathdata.Points[end-1], pen, last_point);
1917
1918 for (i=end-1; i>start; i--)
1919 widen_joint(&path->pathdata.Points[i+1], &path->pathdata.Points[i],
1920 &path->pathdata.Points[i-1], pen, last_point);
1921
1922 widen_joint(&path->pathdata.Points[start+1], &path->pathdata.Points[start],
1923 &path->pathdata.Points[end], pen, last_point);
1924
1925 prev_point->next->type = PathPointTypeStart;
1926 (*last_point)->type |= PathPointTypeCloseSubpath;
1927 }
1928
1929 static void widen_dashed_figure(GpPath *path, GpPen *pen, int start, int end,
1930 int closed, path_list_node_t **last_point)
1931 {
1932 int i, j;
1933 REAL dash_pos=0.0;
1934 int dash_index=0;
1935 const REAL *dash_pattern;
1936 int dash_count;
1937 GpPointF *tmp_points;
1938 REAL segment_dy;
1939 REAL segment_dx;
1940 REAL segment_length;
1941 REAL segment_pos;
1942 int num_tmp_points=0;
1943 int draw_start_cap=0;
1944 static const REAL dash_dot_dot[6] = { 3.0, 1.0, 1.0, 1.0, 1.0, 1.0 };
1945
1946 if (end <= start)
1947 return;
1948
1949 switch (pen->dash)
1950 {
1951 case DashStyleDash:
1952 default:
1953 dash_pattern = dash_dot_dot;
1954 dash_count = 2;
1955 break;
1956 case DashStyleDot:
1957 dash_pattern = &dash_dot_dot[2];
1958 dash_count = 2;
1959 break;
1960 case DashStyleDashDot:
1961 dash_pattern = dash_dot_dot;
1962 dash_count = 4;
1963 break;
1964 case DashStyleDashDotDot:
1965 dash_pattern = dash_dot_dot;
1966 dash_count = 6;
1967 break;
1968 case DashStyleCustom:
1969 dash_pattern = pen->dashes;
1970 dash_count = pen->numdashes;
1971 break;
1972 }
1973
1974 tmp_points = GdipAlloc((end - start + 2) * sizeof(GpPoint));
1975 if (!tmp_points) return; /* FIXME */
1976
1977 if (!closed)
1978 draw_start_cap = 1;
1979
1980 for (j=start; j <= end; j++)
1981 {
1982 if (j == start)
1983 {
1984 if (closed)
1985 i = end;
1986 else
1987 continue;
1988 }
1989 else
1990 i = j-1;
1991
1992 segment_dy = path->pathdata.Points[j].Y - path->pathdata.Points[i].Y;
1993 segment_dx = path->pathdata.Points[j].X - path->pathdata.Points[i].X;
1994 segment_length = sqrtf(segment_dy*segment_dy + segment_dx*segment_dx);
1995 segment_pos = 0.0;
1996
1997 while (1)
1998 {
1999 if (dash_pos == 0.0)
2000 {
2001 if ((dash_index % 2) == 0)
2002 {
2003 /* start dash */
2004 num_tmp_points = 1;
2005 tmp_points[0].X = path->pathdata.Points[i].X + segment_dx * segment_pos / segment_length;
2006 tmp_points[0].Y = path->pathdata.Points[i].Y + segment_dy * segment_pos / segment_length;
2007 }
2008 else
2009 {
2010 /* end dash */
2011 tmp_points[num_tmp_points].X = path->pathdata.Points[i].X + segment_dx * segment_pos / segment_length;
2012 tmp_points[num_tmp_points].Y = path->pathdata.Points[i].Y + segment_dy * segment_pos / segment_length;
2013
2014 widen_open_figure(tmp_points, pen, 0, num_tmp_points,
2015 draw_start_cap ? pen->startcap : LineCapFlat, pen->customstart,
2016 LineCapFlat, NULL, last_point);
2017 draw_start_cap = 0;
2018 num_tmp_points = 0;
2019 }
2020 }
2021
2022 if (dash_pattern[dash_index] - dash_pos > segment_length - segment_pos)
2023 {
2024 /* advance to next segment */
2025 if ((dash_index % 2) == 0)
2026 {
2027 tmp_points[num_tmp_points] = path->pathdata.Points[j];
2028 num_tmp_points++;
2029 }
2030 dash_pos += segment_length - segment_pos;
2031 break;
2032 }
2033 else
2034 {
2035 /* advance to next dash in pattern */
2036 segment_pos += dash_pattern[dash_index] - dash_pos;
2037 dash_pos = 0.0;
2038 if (++dash_index == dash_count)
2039 dash_index = 0;
2040 continue;
2041 }
2042 }
2043 }
2044
2045 if (dash_index % 2 == 0 && num_tmp_points != 0)
2046 {
2047 /* last dash overflows last segment */
2048 tmp_points[num_tmp_points] = path->pathdata.Points[end];
2049 widen_open_figure(tmp_points, pen, 0, num_tmp_points,
2050 draw_start_cap ? pen->startcap : LineCapFlat, pen->customstart,
2051 closed ? LineCapFlat : pen->endcap, pen->customend, last_point);
2052 }
2053
2054 GdipFree(tmp_points);
2055 }
2056
2057 GpStatus WINGDIPAPI GdipWidenPath(GpPath *path, GpPen *pen, GpMatrix *matrix,
2058 REAL flatness)
2059 {
2060 GpPath *flat_path=NULL;
2061 GpStatus status;
2062 path_list_node_t *points=NULL, *last_point=NULL;
2063 int i, subpath_start=0, new_length;
2064 BYTE type;
2065
2066 TRACE("(%p,%p,%p,%0.2f)\n", path, pen, matrix, flatness);
2067
2068 if (!path || !pen)
2069 return InvalidParameter;
2070
2071 if (path->pathdata.Count <= 1)
2072 return OutOfMemory;
2073
2074 status = GdipClonePath(path, &flat_path);
2075
2076 if (status == Ok)
2077 status = GdipFlattenPath(flat_path, matrix, flatness);
2078
2079 if (status == Ok && !init_path_list(&points, 314.0, 22.0))
2080 status = OutOfMemory;
2081
2082 if (status == Ok)
2083 {
2084 last_point = points;
2085
2086 if (pen->endcap > LineCapRound)
2087 FIXME("unimplemented end cap %x\n", pen->endcap);
2088
2089 if (pen->startcap > LineCapRound)
2090 FIXME("unimplemented start cap %x\n", pen->startcap);
2091
2092 if (pen->dashcap != DashCapFlat)
2093 FIXME("unimplemented dash cap %d\n", pen->dashcap);
2094
2095 if (pen->join == LineJoinRound)
2096 FIXME("unimplemented line join %d\n", pen->join);
2097
2098 if (pen->align != PenAlignmentCenter)
2099 FIXME("unimplemented pen alignment %d\n", pen->align);
2100
2101 for (i=0; i < flat_path->pathdata.Count; i++)
2102 {
2103 type = flat_path->pathdata.Types[i];
2104
2105 if ((type&PathPointTypePathTypeMask) == PathPointTypeStart)
2106 subpath_start = i;
2107
2108 if ((type&PathPointTypeCloseSubpath) == PathPointTypeCloseSubpath)
2109 {
2110 if (pen->dash != DashStyleSolid)
2111 widen_dashed_figure(flat_path, pen, subpath_start, i, 1, &last_point);
2112 else
2113 widen_closed_figure(flat_path, pen, subpath_start, i, &last_point);
2114 }
2115 else if (i == flat_path->pathdata.Count-1 ||
2116 (flat_path->pathdata.Types[i+1]&PathPointTypePathTypeMask) == PathPointTypeStart)
2117 {
2118 if (pen->dash != DashStyleSolid)
2119 widen_dashed_figure(flat_path, pen, subpath_start, i, 0, &last_point);
2120 else
2121 widen_open_figure(flat_path->pathdata.Points, pen, subpath_start, i, pen->startcap, pen->customstart, pen->endcap, pen->customend, &last_point);
2122 }
2123 }
2124
2125 new_length = path_list_count(points)-1;
2126
2127 if (!lengthen_path(path, new_length))
2128 status = OutOfMemory;
2129 }
2130
2131 if (status == Ok)
2132 {
2133 path->pathdata.Count = new_length;
2134
2135 last_point = points->next;
2136 for (i = 0; i < new_length; i++)
2137 {
2138 path->pathdata.Points[i] = last_point->pt;
2139 path->pathdata.Types[i] = last_point->type;
2140 last_point = last_point->next;
2141 }
2142
2143 path->fill = FillModeWinding;
2144 }
2145
2146 free_path_list(points);
2147
2148 GdipDeletePath(flat_path);
2149
2150 return status;
2151 }
2152
2153 GpStatus WINGDIPAPI GdipAddPathRectangle(GpPath *path, REAL x, REAL y,
2154 REAL width, REAL height)
2155 {
2156 GpPath *backup;
2157 GpPointF ptf[2];
2158 GpStatus retstat;
2159 BOOL old_new;
2160
2161 TRACE("(%p, %.2f, %.2f, %.2f, %.2f)\n", path, x, y, width, height);
2162
2163 if(!path)
2164 return InvalidParameter;
2165
2166 /* make a backup copy of path data */
2167 if((retstat = GdipClonePath(path, &backup)) != Ok)
2168 return retstat;
2169
2170 /* rectangle should start as new path */
2171 old_new = path->newfigure;
2172 path->newfigure = TRUE;
2173 if((retstat = GdipAddPathLine(path,x,y,x+width,y)) != Ok){
2174 path->newfigure = old_new;
2175 goto fail;
2176 }
2177
2178 ptf[0].X = x+width;
2179 ptf[0].Y = y+height;
2180 ptf[1].X = x;
2181 ptf[1].Y = y+height;
2182
2183 if((retstat = GdipAddPathLine2(path, ptf, 2)) != Ok) goto fail;
2184 path->pathdata.Types[path->pathdata.Count-1] |= PathPointTypeCloseSubpath;
2185
2186 /* free backup */
2187 GdipDeletePath(backup);
2188 return Ok;
2189
2190 fail:
2191 /* reverting */
2192 GdipFree(path->pathdata.Points);
2193 GdipFree(path->pathdata.Types);
2194 memcpy(path, backup, sizeof(*path));
2195 GdipFree(backup);
2196
2197 return retstat;
2198 }
2199
2200 GpStatus WINGDIPAPI GdipAddPathRectangleI(GpPath *path, INT x, INT y,
2201 INT width, INT height)
2202 {
2203 TRACE("(%p, %d, %d, %d, %d)\n", path, x, y, width, height);
2204
2205 return GdipAddPathRectangle(path,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
2206 }
2207
2208 GpStatus WINGDIPAPI GdipAddPathRectangles(GpPath *path, GDIPCONST GpRectF *rects, INT count)
2209 {
2210 GpPath *backup;
2211 GpStatus retstat;
2212 INT i;
2213
2214 TRACE("(%p, %p, %d)\n", path, rects, count);
2215
2216 /* count == 0 - verified condition */
2217 if(!path || !rects || count == 0)
2218 return InvalidParameter;
2219
2220 if(count < 0)
2221 return OutOfMemory;
2222
2223 /* make a backup copy */
2224 if((retstat = GdipClonePath(path, &backup)) != Ok)
2225 return retstat;
2226
2227 for(i = 0; i < count; i++){
2228 if((retstat = GdipAddPathRectangle(path,rects[i].X,rects[i].Y,rects[i].Width,rects[i].Height)) != Ok)
2229 goto fail;
2230 }
2231
2232 /* free backup */
2233 GdipDeletePath(backup);
2234 return Ok;
2235
2236 fail:
2237 /* reverting */
2238 GdipFree(path->pathdata.Points);
2239 GdipFree(path->pathdata.Types);
2240 memcpy(path, backup, sizeof(*path));
2241 GdipFree(backup);
2242
2243 return retstat;
2244 }
2245
2246 GpStatus WINGDIPAPI GdipAddPathRectanglesI(GpPath *path, GDIPCONST GpRect *rects, INT count)
2247 {
2248 GpRectF *rectsF;
2249 GpStatus retstat;
2250 INT i;
2251
2252 TRACE("(%p, %p, %d)\n", path, rects, count);
2253
2254 if(!rects || count == 0)
2255 return InvalidParameter;
2256
2257 if(count < 0)
2258 return OutOfMemory;
2259
2260 rectsF = GdipAlloc(sizeof(GpRectF)*count);
2261
2262 for(i = 0;i < count;i++){
2263 rectsF[i].X = (REAL)rects[i].X;
2264 rectsF[i].Y = (REAL)rects[i].Y;
2265 rectsF[i].Width = (REAL)rects[i].Width;
2266 rectsF[i].Height = (REAL)rects[i].Height;
2267 }
2268
2269 retstat = GdipAddPathRectangles(path, rectsF, count);
2270 GdipFree(rectsF);
2271
2272 return retstat;
2273 }
2274
2275 GpStatus WINGDIPAPI GdipSetPathMarker(GpPath* path)
2276 {
2277 INT count;
2278
2279 TRACE("(%p)\n", path);
2280
2281 if(!path)
2282 return InvalidParameter;
2283
2284 count = path->pathdata.Count;
2285
2286 /* set marker flag */
2287 if(count > 0)
2288 path->pathdata.Types[count-1] |= PathPointTypePathMarker;
2289
2290 return Ok;
2291 }
2292
2293 GpStatus WINGDIPAPI GdipClearPathMarkers(GpPath* path)
2294 {
2295 INT count;
2296 INT i;
2297
2298 TRACE("(%p)\n", path);
2299
2300 if(!path)
2301 return InvalidParameter;
2302
2303 count = path->pathdata.Count;
2304
2305 for(i = 0; i < count - 1; i++){
2306 path->pathdata.Types[i] &= ~PathPointTypePathMarker;
2307 }
2308
2309 return Ok;
2310 }
2311
2312 GpStatus WINGDIPAPI GdipWindingModeOutline(GpPath *path, GpMatrix *matrix, REAL flatness)
2313 {
2314 FIXME("stub: %p, %p, %.2f\n", path, matrix, flatness);
2315 return NotImplemented;
2316 }
Windows API implementation