2 * Copyright (C) 2007 Google (Evan Stade)
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.
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.
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
31 #include "gdiplus_private.h"
32 #include "wine/debug.h"
34 WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
36 typedef struct path_list_node_t path_list_node_t;
37 struct path_list_node_t {
39 BYTE type; /* PathPointTypeStart or PathPointTypeLine */
40 path_list_node_t *next;
44 static BOOL init_path_list(path_list_node_t **node, REAL x, REAL y)
46 *node = GdipAlloc(sizeof(path_list_node_t));
52 (*node)->type = PathPointTypeStart;
58 /* free all nodes including argument */
59 static void free_path_list(path_list_node_t *node)
61 path_list_node_t *n = node;
70 /* Add a node after 'node' */
74 * NULL on allocation problems
76 static path_list_node_t* add_path_list_node(path_list_node_t *node, REAL x, REAL y, BOOL type)
78 path_list_node_t *new;
80 new = GdipAlloc(sizeof(path_list_node_t));
87 new->next = node->next;
93 /* returns element count */
94 static INT path_list_count(path_list_node_t *node)
98 while((node = node->next))
104 /* GdipFlattenPath helper */
106 * Used to recursively flatten single Bezier curve
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.
116 * FALSE: out of memory
118 * TODO: used quality criteria should be revised to match native as
119 * closer as possible.
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)
124 /* this 5 middle points with start/end define to half-curves */
127 path_list_node_t *node;
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;
142 mp[2].X = (mp[1].X + mp[3].X) / 2.0;
143 mp[2].Y = (mp[1].Y + mp[3].Y) / 2.0;
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))))){
154 /* add a middle point */
155 if(!(node = add_path_list_node(start, mp[2].X, mp[2].Y, PathPointTypeLine)))
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);
165 GpStatus WINGDIPAPI GdipAddPathArc(GpPath *path, REAL x1, REAL y1, REAL x2,
166 REAL y2, REAL startAngle, REAL sweepAngle)
168 INT count, old_count, i;
170 TRACE("(%p, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f)\n",
171 path, x1, y1, x2, y2, startAngle, sweepAngle);
174 return InvalidParameter;
176 count = arc2polybezier(NULL, x1, y1, x2, y2, startAngle, sweepAngle);
180 if(!lengthen_path(path, count))
183 old_count = path->pathdata.Count;
184 arc2polybezier(&path->pathdata.Points[old_count], x1, y1, x2, y2,
185 startAngle, sweepAngle);
187 for(i = 0; i < count; i++){
188 path->pathdata.Types[old_count + i] = PathPointTypeBezier;
191 path->pathdata.Types[old_count] =
192 (path->newfigure ? PathPointTypeStart : PathPointTypeLine);
193 path->newfigure = FALSE;
194 path->pathdata.Count += count;
199 GpStatus WINGDIPAPI GdipAddPathArcI(GpPath *path, INT x1, INT y1, INT x2,
200 INT y2, REAL startAngle, REAL sweepAngle)
202 TRACE("(%p, %d, %d, %d, %d, %.2f, %.2f)\n",
203 path, x1, y1, x2, y2, startAngle, sweepAngle);
205 return GdipAddPathArc(path,(REAL)x1,(REAL)y1,(REAL)x2,(REAL)y2,startAngle,sweepAngle);
208 GpStatus WINGDIPAPI GdipAddPathBezier(GpPath *path, REAL x1, REAL y1, REAL x2,
209 REAL y2, REAL x3, REAL y3, REAL x4, REAL y4)
213 TRACE("(%p, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f)\n",
214 path, x1, y1, x2, y2, x3, y3, x4, y4);
217 return InvalidParameter;
219 if(!lengthen_path(path, 4))
222 old_count = path->pathdata.Count;
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;
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;
239 path->newfigure = FALSE;
240 path->pathdata.Count += 4;
245 GpStatus WINGDIPAPI GdipAddPathBezierI(GpPath *path, INT x1, INT y1, INT x2,
246 INT y2, INT x3, INT y3, INT x4, INT y4)
248 TRACE("(%p, %d, %d, %d, %d, %d, %d, %d, %d)\n",
249 path, x1, y1, x2, y2, x3, y3, x4, y4);
251 return GdipAddPathBezier(path,(REAL)x1,(REAL)y1,(REAL)x2,(REAL)y2,(REAL)x3,(REAL)y3,
255 GpStatus WINGDIPAPI GdipAddPathBeziers(GpPath *path, GDIPCONST GpPointF *points,
260 TRACE("(%p, %p, %d)\n", path, points, count);
262 if(!path || !points || ((count - 1) % 3))
263 return InvalidParameter;
265 if(!lengthen_path(path, count))
268 old_count = path->pathdata.Count;
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;
276 path->pathdata.Types[old_count] =
277 (path->newfigure ? PathPointTypeStart : PathPointTypeLine);
278 path->newfigure = FALSE;
279 path->pathdata.Count += count;
284 GpStatus WINGDIPAPI GdipAddPathBeziersI(GpPath *path, GDIPCONST GpPoint *points,
291 TRACE("(%p, %p, %d)\n", path, points, count);
293 if(!points || ((count - 1) % 3))
294 return InvalidParameter;
296 ptsF = GdipAlloc(sizeof(GpPointF) * count);
300 for(i = 0; i < count; i++){
301 ptsF[i].X = (REAL)points[i].X;
302 ptsF[i].Y = (REAL)points[i].Y;
305 ret = GdipAddPathBeziers(path, ptsF, count);
311 GpStatus WINGDIPAPI GdipAddPathClosedCurve(GpPath *path, GDIPCONST GpPointF *points,
314 TRACE("(%p, %p, %d)\n", path, points, count);
316 return GdipAddPathClosedCurve2(path, points, count, 1.0);
319 GpStatus WINGDIPAPI GdipAddPathClosedCurveI(GpPath *path, GDIPCONST GpPoint *points,
322 TRACE("(%p, %p, %d)\n", path, points, count);
324 return GdipAddPathClosedCurve2I(path, points, count, 1.0);
327 GpStatus WINGDIPAPI GdipAddPathClosedCurve2(GpPath *path, GDIPCONST GpPointF *points,
328 INT count, REAL tension)
330 INT i, len_pt = (count + 1)*3-2;
336 TRACE("(%p, %p, %d, %.2f)\n", path, points, count, tension);
338 if(!path || !points || count <= 1)
339 return InvalidParameter;
341 pt = GdipAlloc(len_pt * sizeof(GpPointF));
342 pts = GdipAlloc((count + 1)*sizeof(GpPointF));
349 /* copy source points to extend with the last one */
350 memcpy(pts, points, sizeof(GpPointF)*count);
353 tension = tension * TENSION_CONST;
355 for(i = 0; i < count-1; i++){
356 calc_curve_bezier(&(pts[i]), tension, &x1, &y1, &x2, &y2);
360 pt[3*i+3].X = pts[i+1].X;
361 pt[3*i+3].Y = pts[i+1].Y;
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 */
372 calc_curve_bezier(pts, tension, &x1, &y1, &x2, &y2);
380 pt[len_pt-1].X = pt[0].X;
381 pt[len_pt-1].Y = pt[0].Y;
383 stat = GdipAddPathBeziers(path, pt, len_pt);
387 path->pathdata.Types[path->pathdata.Count - 1] |= PathPointTypeCloseSubpath;
388 path->newfigure = TRUE;
397 GpStatus WINGDIPAPI GdipAddPathClosedCurve2I(GpPath *path, GDIPCONST GpPoint *points,
398 INT count, REAL tension)
404 TRACE("(%p, %p, %d, %.2f)\n", path, points, count, tension);
406 if(!path || !points || count <= 1)
407 return InvalidParameter;
409 ptf = GdipAlloc(sizeof(GpPointF)*count);
413 for(i = 0; i < count; i++){
414 ptf[i].X = (REAL)points[i].X;
415 ptf[i].Y = (REAL)points[i].Y;
418 stat = GdipAddPathClosedCurve2(path, ptf, count, tension);
425 GpStatus WINGDIPAPI GdipAddPathCurve(GpPath *path, GDIPCONST GpPointF *points, INT count)
427 TRACE("(%p, %p, %d)\n", path, points, count);
429 if(!path || !points || count <= 1)
430 return InvalidParameter;
432 return GdipAddPathCurve2(path, points, count, 1.0);
435 GpStatus WINGDIPAPI GdipAddPathCurveI(GpPath *path, GDIPCONST GpPoint *points, INT count)
437 TRACE("(%p, %p, %d)\n", path, points, count);
439 if(!path || !points || count <= 1)
440 return InvalidParameter;
442 return GdipAddPathCurve2I(path, points, count, 1.0);
445 GpStatus WINGDIPAPI GdipAddPathCurve2(GpPath *path, GDIPCONST GpPointF *points, INT count,
448 INT i, len_pt = count*3-2;
453 TRACE("(%p, %p, %d, %.2f)\n", path, points, count, tension);
455 if(!path || !points || count <= 1)
456 return InvalidParameter;
458 pt = GdipAlloc(len_pt * sizeof(GpPointF));
462 tension = tension * TENSION_CONST;
464 calc_curve_bezier_endp(points[0].X, points[0].Y, points[1].X, points[1].Y,
467 pt[0].X = points[0].X;
468 pt[0].Y = points[0].Y;
472 for(i = 0; i < count-2; i++){
473 calc_curve_bezier(&(points[i]), tension, &x1, &y1, &x2, &y2);
477 pt[3*i+3].X = points[i+1].X;
478 pt[3*i+3].Y = points[i+1].Y;
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);
488 pt[len_pt-1].X = points[count-1].X;
489 pt[len_pt-1].Y = points[count-1].Y;
491 stat = GdipAddPathBeziers(path, pt, len_pt);
498 GpStatus WINGDIPAPI GdipAddPathCurve2I(GpPath *path, GDIPCONST GpPoint *points,
499 INT count, REAL tension)
505 TRACE("(%p, %p, %d, %.2f)\n", path, points, count, tension);
507 if(!path || !points || count <= 1)
508 return InvalidParameter;
510 ptf = GdipAlloc(sizeof(GpPointF)*count);
514 for(i = 0; i < count; i++){
515 ptf[i].X = (REAL)points[i].X;
516 ptf[i].Y = (REAL)points[i].Y;
519 stat = GdipAddPathCurve2(path, ptf, count, tension);
526 GpStatus WINGDIPAPI GdipAddPathCurve3(GpPath *path, GDIPCONST GpPointF *points,
527 INT count, INT offset, INT nseg, REAL tension)
529 TRACE("(%p, %p, %d, %d, %d, %.2f)\n", path, points, count, offset, nseg, tension);
531 if(!path || !points || offset + 1 >= count || count - offset < nseg + 1)
532 return InvalidParameter;
534 return GdipAddPathCurve2(path, &points[offset], nseg + 1, tension);
537 GpStatus WINGDIPAPI GdipAddPathCurve3I(GpPath *path, GDIPCONST GpPoint *points,
538 INT count, INT offset, INT nseg, REAL tension)
540 TRACE("(%p, %p, %d, %d, %d, %.2f)\n", path, points, count, offset, nseg, tension);
542 if(!path || !points || offset + 1 >= count || count - offset < nseg + 1)
543 return InvalidParameter;
545 return GdipAddPathCurve2I(path, &points[offset], nseg + 1, tension);
548 GpStatus WINGDIPAPI GdipAddPathEllipse(GpPath *path, REAL x, REAL y, REAL width,
551 INT old_count, numpts;
553 TRACE("(%p, %.2f, %.2f, %.2f, %.2f)\n", path, x, y, width, height);
556 return InvalidParameter;
558 if(!lengthen_path(path, MAX_ARC_PTS))
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);
568 memset(&path->pathdata.Types[old_count + 1], PathPointTypeBezier,
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;
580 GpStatus WINGDIPAPI GdipAddPathEllipseI(GpPath *path, INT x, INT y, INT width,
583 TRACE("(%p, %d, %d, %d, %d)\n", path, x, y, width, height);
585 return GdipAddPathEllipse(path,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
588 GpStatus WINGDIPAPI GdipAddPathLine2(GpPath *path, GDIPCONST GpPointF *points,
593 TRACE("(%p, %p, %d)\n", path, points, count);
596 return InvalidParameter;
598 if(!lengthen_path(path, count))
601 old_count = path->pathdata.Count;
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;
610 path->pathdata.Types[old_count] = PathPointTypeStart;
611 path->newfigure = FALSE;
614 path->pathdata.Count += count;
619 GpStatus WINGDIPAPI GdipAddPathLine2I(GpPath *path, GDIPCONST GpPoint *points, INT count)
625 TRACE("(%p, %p, %d)\n", path, points, count);
628 return InvalidParameter;
630 pointsF = GdipAlloc(sizeof(GpPointF) * count);
631 if(!pointsF) return OutOfMemory;
633 for(i = 0;i < count; i++){
634 pointsF[i].X = (REAL)points[i].X;
635 pointsF[i].Y = (REAL)points[i].Y;
638 stat = GdipAddPathLine2(path, pointsF, count);
645 GpStatus WINGDIPAPI GdipAddPathLine(GpPath *path, REAL x1, REAL y1, REAL x2, REAL y2)
649 TRACE("(%p, %.2f, %.2f, %.2f, %.2f)\n", path, x1, y1, x2, y2);
652 return InvalidParameter;
654 if(!lengthen_path(path, 2))
657 old_count = path->pathdata.Count;
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;
664 path->pathdata.Types[old_count] =
665 (path->newfigure ? PathPointTypeStart : PathPointTypeLine);
666 path->pathdata.Types[old_count + 1] = PathPointTypeLine;
668 path->newfigure = FALSE;
669 path->pathdata.Count += 2;
674 GpStatus WINGDIPAPI GdipAddPathLineI(GpPath *path, INT x1, INT y1, INT x2, INT y2)
676 TRACE("(%p, %d, %d, %d, %d)\n", path, x1, y1, x2, y2);
678 return GdipAddPathLine(path, (REAL)x1, (REAL)y1, (REAL)x2, (REAL)y2);
681 GpStatus WINGDIPAPI GdipAddPathPath(GpPath *path, GDIPCONST GpPath* addingPath,
684 INT old_count, count;
686 TRACE("(%p, %p, %d)\n", path, addingPath, connect);
688 if(!path || !addingPath)
689 return InvalidParameter;
691 old_count = path->pathdata.Count;
692 count = addingPath->pathdata.Count;
694 if(!lengthen_path(path, count))
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);
701 if(path->newfigure || !connect)
702 path->pathdata.Types[old_count] = PathPointTypeStart;
704 path->pathdata.Types[old_count] = PathPointTypeLine;
706 path->newfigure = FALSE;
707 path->pathdata.Count += count;
712 GpStatus WINGDIPAPI GdipAddPathPie(GpPath *path, REAL x, REAL y, REAL width, REAL height,
713 REAL startAngle, REAL sweepAngle)
719 TRACE("(%p, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f)\n",
720 path, x, y, width, height, startAngle, sweepAngle);
723 return InvalidParameter;
725 /* on zero width/height only start point added */
726 if(width <= 1e-7 || height <= 1e-7){
727 if(!lengthen_path(path, 1))
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;
736 count = arc2polybezier(NULL, x, y, width, height, startAngle, sweepAngle);
741 ptf = GdipAlloc(sizeof(GpPointF)*count);
745 arc2polybezier(ptf, x, y, width, height, startAngle, sweepAngle);
747 status = GdipAddPathLine(path, x + width/2, y + height/2, ptf[0].X, ptf[0].Y);
752 /* one spline is already added as a line endpoint */
753 if(!lengthen_path(path, count - 1)){
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;
762 path->pathdata.Count += count-1;
764 GdipClosePathFigure(path);
771 GpStatus WINGDIPAPI GdipAddPathPieI(GpPath *path, INT x, INT y, INT width, INT height,
772 REAL startAngle, REAL sweepAngle)
774 TRACE("(%p, %d, %d, %d, %d, %.2f, %.2f)\n",
775 path, x, y, width, height, startAngle, sweepAngle);
777 return GdipAddPathPie(path, (REAL)x, (REAL)y, (REAL)width, (REAL)height, startAngle, sweepAngle);
780 GpStatus WINGDIPAPI GdipAddPathPolygon(GpPath *path, GDIPCONST GpPointF *points, INT count)
784 TRACE("(%p, %p, %d)\n", path, points, count);
786 if(!path || !points || count < 3)
787 return InvalidParameter;
789 if(!lengthen_path(path, count))
792 old_count = path->pathdata.Count;
794 memcpy(&path->pathdata.Points[old_count], points, count*sizeof(GpPointF));
795 memset(&path->pathdata.Types[old_count + 1], PathPointTypeLine, count - 1);
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;
806 GpStatus WINGDIPAPI GdipAddPathPolygonI(GpPath *path, GDIPCONST GpPoint *points, INT count)
812 TRACE("(%p, %p, %d)\n", path, points, count);
814 if(!points || count < 3)
815 return InvalidParameter;
817 ptf = GdipAlloc(sizeof(GpPointF) * count);
821 for(i = 0; i < count; i++){
822 ptf[i].X = (REAL)points[i].X;
823 ptf[i].Y = (REAL)points[i].Y;
826 status = GdipAddPathPolygon(path, ptf, count);
833 static float fromfixedpoint(const FIXED v)
835 float f = ((float)v.fract) / (1<<(sizeof(v.fract)*8));
840 struct format_string_args
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)
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;
862 if (underlined_index_count)
863 FIXME("hotkey underlines not drawn yet\n");
865 if (y + bounds->Height * args->scale > args->maxY)
866 args->maxY = y + bounds->Height * args->scale;
868 for (i = index; i < length; ++i)
871 TTPOLYGONHEADER *ph = NULL;
874 len = GetGlyphOutlineW(dc, string[i], GGO_BEZIER, &gm, 0, NULL, &identity);
875 if (len == GDI_ERROR)
877 status = GenericError;
882 if (!ph || !lengthen_path(path, len / sizeof(POINTFX)))
884 status = OutOfMemory;
887 GetGlyphOutlineW(dc, string[i], GGO_BEZIER, &gm, len, start, &identity);
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);
899 while (ofs - ofs_start < ph->cb)
901 TTPOLYCURVE *curve = (TTPOLYCURVE*)&start[ofs];
903 ofs += sizeof(TTPOLYCURVE) + (curve->cpfx - 1) * sizeof(POINTFX);
905 switch (curve->wType)
908 for (j = 0; j < curve->cpfx; ++j)
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;
915 case TT_PRIM_CSPLINE:
916 for (j = 0; j < curve->cpfx; ++j)
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;
924 ERR("Unhandled type: %u\n", curve->wType);
925 status = GenericError;
928 path->pathdata.Types[path->pathdata.Count - 1] |= PathPointTypeCloseSubpath;
930 path->newfigure = TRUE;
931 x += gm.gmCellIncX * args->scale;
932 y += gm.gmCellIncY * args->scale;
942 GpStatus WINGDIPAPI GdipAddPathString(GpPath* path, GDIPCONST WCHAR* string, INT length, GDIPCONST GpFontFamily* family, INT style, REAL emSize, GDIPCONST RectF* layoutRect, GDIPCONST GpStringFormat* format)
949 GpGraphics *graphics;
951 struct format_string_args args;
953 UINT16 native_height;
954 RectF scaled_layout_rect;
955 TEXTMETRICW textmetric;
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;
961 status = GdipGetEmHeight(family, style, &native_height);
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;
970 if ((status = GdipClonePath(path, &backup)) != Ok)
973 dc = CreateCompatibleDC(0);
974 status = GdipCreateFromHDC(dc, &graphics);
978 GdipDeletePath(backup);
982 status = GdipCreateFont(family, native_height, style, UnitPixel, &font);
985 GdipDeleteGraphics(graphics);
987 GdipDeletePath(backup);
991 get_log_fontW(font, graphics, &lfw);
992 GdipDeleteFont(font);
993 GdipDeleteGraphics(graphics);
995 hfont = CreateFontIndirectW(&lfw);
998 WARN("Failed to create font\n");
1000 GdipDeletePath(backup);
1001 return GenericError;
1004 SelectObject(dc, hfont);
1006 GetTextMetricsW(dc, &textmetric);
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);
1016 DeleteObject(hfont);
1018 if (status != Ok) /* free backup */
1020 GdipFree(path->pathdata.Points);
1021 GdipFree(path->pathdata.Types);
1026 if (format && format->vertalign == StringAlignmentCenter && layoutRect->Y + args.maxY < layoutRect->Height)
1028 float inc = layoutRect->Height + layoutRect->Y - args.maxY;
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;
1037 GdipDeletePath(backup);
1041 GpStatus WINGDIPAPI GdipAddPathStringI(GpPath* path, GDIPCONST WCHAR* string, INT length, GDIPCONST GpFontFamily* family, INT style, REAL emSize, GDIPCONST Rect* layoutRect, GDIPCONST GpStringFormat* format)
1045 RectF layoutRectF = {
1046 (REAL)layoutRect->X,
1047 (REAL)layoutRect->Y,
1048 (REAL)layoutRect->Width,
1049 (REAL)layoutRect->Height
1051 return GdipAddPathString(path, string, length, family, style, emSize, &layoutRectF, format);
1053 return InvalidParameter;
1056 GpStatus WINGDIPAPI GdipClonePath(GpPath* path, GpPath **clone)
1058 TRACE("(%p, %p)\n", path, clone);
1061 return InvalidParameter;
1063 *clone = GdipAlloc(sizeof(GpPath));
1064 if(!*clone) return OutOfMemory;
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);
1077 memcpy((*clone)->pathdata.Points, path->pathdata.Points,
1078 path->datalen * sizeof(PointF));
1079 memcpy((*clone)->pathdata.Types, path->pathdata.Types, path->datalen);
1084 GpStatus WINGDIPAPI GdipClosePathFigure(GpPath* path)
1086 TRACE("(%p)\n", path);
1089 return InvalidParameter;
1091 if(path->pathdata.Count > 0){
1092 path->pathdata.Types[path->pathdata.Count - 1] |= PathPointTypeCloseSubpath;
1093 path->newfigure = TRUE;
1099 GpStatus WINGDIPAPI GdipClosePathFigures(GpPath* path)
1103 TRACE("(%p)\n", path);
1106 return InvalidParameter;
1108 for(i = 1; i < path->pathdata.Count; i++){
1109 if(path->pathdata.Types[i] == PathPointTypeStart)
1110 path->pathdata.Types[i-1] |= PathPointTypeCloseSubpath;
1113 path->newfigure = TRUE;
1118 GpStatus WINGDIPAPI GdipCreatePath(GpFillMode fill, GpPath **path)
1120 TRACE("(%d, %p)\n", fill, path);
1123 return InvalidParameter;
1125 *path = GdipAlloc(sizeof(GpPath));
1126 if(!*path) return OutOfMemory;
1128 (*path)->fill = fill;
1129 (*path)->newfigure = TRUE;
1134 GpStatus WINGDIPAPI GdipCreatePath2(GDIPCONST GpPointF* points,
1135 GDIPCONST BYTE* types, INT count, GpFillMode fill, GpPath **path)
1137 TRACE("(%p, %p, %d, %d, %p)\n", points, types, count, fill, path);
1140 return InvalidParameter;
1142 *path = GdipAlloc(sizeof(GpPath));
1143 if(!*path) return OutOfMemory;
1145 (*path)->pathdata.Points = GdipAlloc(count * sizeof(PointF));
1146 (*path)->pathdata.Types = GdipAlloc(count);
1148 if(!(*path)->pathdata.Points || !(*path)->pathdata.Types){
1149 GdipFree((*path)->pathdata.Points);
1150 GdipFree((*path)->pathdata.Types);
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;
1160 (*path)->fill = fill;
1161 (*path)->newfigure = TRUE;
1166 GpStatus WINGDIPAPI GdipCreatePath2I(GDIPCONST GpPoint* points,
1167 GDIPCONST BYTE* types, INT count, GpFillMode fill, GpPath **path)
1173 TRACE("(%p, %p, %d, %d, %p)\n", points, types, count, fill, path);
1175 ptF = GdipAlloc(sizeof(GpPointF)*count);
1177 for(i = 0;i < count; i++){
1178 ptF[i].X = (REAL)points[i].X;
1179 ptF[i].Y = (REAL)points[i].Y;
1182 ret = GdipCreatePath2(ptF, types, count, fill, path);
1189 GpStatus WINGDIPAPI GdipDeletePath(GpPath *path)
1191 TRACE("(%p)\n", path);
1194 return InvalidParameter;
1196 GdipFree(path->pathdata.Points);
1197 GdipFree(path->pathdata.Types);
1203 GpStatus WINGDIPAPI GdipFlattenPath(GpPath *path, GpMatrix* matrix, REAL flatness)
1205 path_list_node_t *list, *node;
1211 TRACE("(%p, %p, %.2f)\n", path, matrix, flatness);
1214 return InvalidParameter;
1216 if(path->pathdata.Count == 0)
1220 stat = GdipTransformPath(path, matrix);
1225 pt = path->pathdata.Points[0];
1226 if(!init_path_list(&list, pt.X, pt.Y))
1231 while(i < path->pathdata.Count){
1233 BYTE type = path->pathdata.Types[i] & PathPointTypePathTypeMask;
1234 path_list_node_t *start;
1236 pt = path->pathdata.Points[i];
1238 /* save last start point index */
1239 if(type == PathPointTypeStart)
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]))
1254 /* test for closed figure */
1255 if(path->pathdata.Types[i+1] & PathPointTypeCloseSubpath){
1256 pt = path->pathdata.Points[startidx];
1262 pt = path->pathdata.Points[i];
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))
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,
1281 /* store path data back */
1282 i = path_list_count(list);
1283 if(!lengthen_path(path, i))
1285 path->pathdata.Count = i;
1288 for(i = 0; i < path->pathdata.Count; i++){
1289 path->pathdata.Points[i] = node->pt;
1290 path->pathdata.Types[i] = node->type;
1294 free_path_list(list);
1298 free_path_list(list);
1302 GpStatus WINGDIPAPI GdipGetPathData(GpPath *path, GpPathData* pathData)
1304 TRACE("(%p, %p)\n", path, pathData);
1306 if(!path || !pathData)
1307 return InvalidParameter;
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);
1317 GpStatus WINGDIPAPI GdipGetPathFillMode(GpPath *path, GpFillMode *fillmode)
1319 TRACE("(%p, %p)\n", path, fillmode);
1321 if(!path || !fillmode)
1322 return InvalidParameter;
1324 *fillmode = path->fill;
1329 GpStatus WINGDIPAPI GdipGetPathLastPoint(GpPath* path, GpPointF* lastPoint)
1333 TRACE("(%p, %p)\n", path, lastPoint);
1335 if(!path || !lastPoint)
1336 return InvalidParameter;
1338 count = path->pathdata.Count;
1340 *lastPoint = path->pathdata.Points[count-1];
1345 GpStatus WINGDIPAPI GdipGetPathPoints(GpPath *path, GpPointF* points, INT count)
1347 TRACE("(%p, %p, %d)\n", path, points, count);
1350 return InvalidParameter;
1352 if(count < path->pathdata.Count)
1353 return InsufficientBuffer;
1355 memcpy(points, path->pathdata.Points, path->pathdata.Count * sizeof(GpPointF));
1360 GpStatus WINGDIPAPI GdipGetPathPointsI(GpPath *path, GpPoint* points, INT count)
1366 TRACE("(%p, %p, %d)\n", path, points, count);
1369 return InvalidParameter;
1371 ptf = GdipAlloc(sizeof(GpPointF)*count);
1372 if(!ptf) return OutOfMemory;
1374 ret = GdipGetPathPoints(path,ptf,count);
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);
1385 GpStatus WINGDIPAPI GdipGetPathTypes(GpPath *path, BYTE* types, INT count)
1387 TRACE("(%p, %p, %d)\n", path, types, count);
1390 return InvalidParameter;
1392 if(count < path->pathdata.Count)
1393 return InsufficientBuffer;
1395 memcpy(types, path->pathdata.Types, path->pathdata.Count);
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)
1407 GpPointF * points, temp_pts[4];
1409 REAL path_width = 1.0, width, height, temp, low_x, low_y, high_x, high_y;
1411 TRACE("(%p, %p, %p, %p)\n", path, bounds, matrix, pen);
1413 /* Matrix and pen can be null. */
1414 if(!path || !bounds)
1415 return InvalidParameter;
1417 /* If path is empty just return. */
1418 count = path->pathdata.Count;
1420 bounds->X = bounds->Y = bounds->Width = bounds->Height = 0.0;
1424 points = path->pathdata.Points;
1426 low_x = high_x = points[0].X;
1427 low_y = high_y = points[0].Y;
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);
1436 width = high_x - low_x;
1437 height = high_y - low_y;
1439 /* This looks unusual but it's the only way I can imitate windows. */
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;
1450 GdipTransformMatrixPoints((GpMatrix*)matrix, temp_pts, 4);
1451 low_x = temp_pts[0].X;
1452 low_y = temp_pts[0].Y;
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);
1460 width = height * fabs(matrix->matrix[2]) + width * fabs(matrix->matrix[0]);
1461 height = height * fabs(matrix->matrix[3]) + temp * fabs(matrix->matrix[1]);
1465 path_width = pen->width / 2.0;
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);
1473 low_x -= path_width;
1474 low_y -= path_width;
1475 width += 2.0 * path_width;
1476 height += 2.0 * path_width;
1481 bounds->Width = width;
1482 bounds->Height = height;
1487 GpStatus WINGDIPAPI GdipGetPathWorldBoundsI(GpPath* path, GpRect* bounds,
1488 GDIPCONST GpMatrix *matrix, GDIPCONST GpPen *pen)
1493 TRACE("(%p, %p, %p, %p)\n", path, bounds, matrix, pen);
1495 ret = GdipGetPathWorldBounds(path,&boundsF,matrix,pen);
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);
1507 GpStatus WINGDIPAPI GdipGetPointCount(GpPath *path, INT *count)
1509 TRACE("(%p, %p)\n", path, count);
1512 return InvalidParameter;
1514 *count = path->pathdata.Count;
1519 GpStatus WINGDIPAPI GdipReversePath(GpPath* path)
1522 INT start = 0; /* position in reversed path */
1525 TRACE("(%p)\n", path);
1528 return InvalidParameter;
1530 count = path->pathdata.Count;
1532 if(count == 0) return Ok;
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);
1543 for(i = 0; i < count; i++){
1545 /* find next start point */
1546 if(path->pathdata.Types[count-i-1] == PathPointTypeStart){
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];
1552 /* mark start point */
1553 revpath.Types[start] = PathPointTypeStart;
1554 /* set 'figure' endpoint type */
1556 revpath.Types[i] = path->pathdata.Types[count-start-1] & ~PathPointTypePathTypeMask;
1557 revpath.Types[i] |= revpath.Types[i-1];
1560 revpath.Types[i] = path->pathdata.Types[start];
1566 memcpy(path->pathdata.Points, revpath.Points, sizeof(GpPointF)*count);
1567 memcpy(path->pathdata.Types, revpath.Types, sizeof(BYTE)*count);
1569 GdipFree(revpath.Points);
1570 GdipFree(revpath.Types);
1575 GpStatus WINGDIPAPI GdipIsOutlineVisiblePathPointI(GpPath* path, INT x, INT y,
1576 GpPen *pen, GpGraphics *graphics, BOOL *result)
1578 TRACE("(%p, %d, %d, %p, %p, %p)\n", path, x, y, pen, graphics, result);
1580 return GdipIsOutlineVisiblePathPoint(path, x, y, pen, graphics, result);
1583 GpStatus WINGDIPAPI GdipIsOutlineVisiblePathPoint(GpPath* path, REAL x, REAL y,
1584 GpPen *pen, GpGraphics *graphics, BOOL *result)
1588 TRACE("(%p,%0.2f,%0.2f,%p,%p,%p)\n", path, x, y, pen, graphics, result);
1591 return InvalidParameter;
1594 FIXME("not implemented\n");
1596 return NotImplemented;
1599 GpStatus WINGDIPAPI GdipIsVisiblePathPointI(GpPath* path, INT x, INT y, GpGraphics *graphics, BOOL *result)
1601 TRACE("(%p, %d, %d, %p, %p)\n", path, x, y, graphics, result);
1603 return GdipIsVisiblePathPoint(path, x, y, graphics, result);
1606 /*****************************************************************************
1607 * GdipIsVisiblePathPoint [GDIPLUS.@]
1609 GpStatus WINGDIPAPI GdipIsVisiblePathPoint(GpPath* path, REAL x, REAL y, GpGraphics *graphics, BOOL *result)
1615 if(!path || !result) return InvalidParameter;
1617 status = GdipCreateRegionPath(path, ®ion);
1621 status = GdipGetRegionHRgn(region, graphics, &hrgn);
1623 GdipDeleteRegion(region);
1627 *result = PtInRegion(hrgn, gdip_round(x), gdip_round(y));
1630 GdipDeleteRegion(region);
1635 GpStatus WINGDIPAPI GdipStartPathFigure(GpPath *path)
1637 TRACE("(%p)\n", path);
1640 return InvalidParameter;
1642 path->newfigure = TRUE;
1647 GpStatus WINGDIPAPI GdipResetPath(GpPath *path)
1649 TRACE("(%p)\n", path);
1652 return InvalidParameter;
1654 path->pathdata.Count = 0;
1655 path->newfigure = TRUE;
1656 path->fill = FillModeAlternate;
1661 GpStatus WINGDIPAPI GdipSetPathFillMode(GpPath *path, GpFillMode fill)
1663 TRACE("(%p, %d)\n", path, fill);
1666 return InvalidParameter;
1673 GpStatus WINGDIPAPI GdipTransformPath(GpPath *path, GpMatrix *matrix)
1675 TRACE("(%p, %p)\n", path, matrix);
1678 return InvalidParameter;
1680 if(path->pathdata.Count == 0)
1683 return GdipTransformMatrixPoints(matrix, path->pathdata.Points,
1684 path->pathdata.Count);
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)
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);
1694 return NotImplemented;
1697 static void add_bevel_point(const GpPointF *endpoint, const GpPointF *nextpoint,
1698 GpPen *pen, int right_side, path_list_node_t **last_point)
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;
1706 if (segment_length == 0.0)
1708 *last_point = add_path_list_node(*last_point, endpoint->X,
1709 endpoint->Y, PathPointTypeLine);
1715 bevel_dx = -distance * segment_dy / segment_length;
1716 bevel_dy = distance * segment_dx / segment_length;
1720 bevel_dx = distance * segment_dy / segment_length;
1721 bevel_dy = -distance * segment_dx / segment_length;
1724 *last_point = add_path_list_node(*last_point, endpoint->X + bevel_dx,
1725 endpoint->Y + bevel_dy, PathPointTypeLine);
1728 static void widen_joint(const GpPointF *p1, const GpPointF *p2, const GpPointF *p3,
1729 GpPen* pen, path_list_node_t **last_point)
1734 case LineJoinMiterClipped:
1735 if ((p2->X - p1->X) * (p3->Y - p1->Y) > (p2->Y - p1->Y) * (p3->X - p1->X))
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)
1749 *last_point = add_path_list_node(*last_point, p2->X + dx,
1750 p2->Y + dy, PathPointTypeLine);
1753 else if (pen->join == LineJoinMiter)
1757 FIXME("should add a clipped corner\n");
1759 /* else fall-through */
1761 /* else fall-through */
1764 add_bevel_point(p2, p1, pen, 1, last_point);
1765 add_bevel_point(p2, p3, pen, 0, last_point);
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)
1778 if (add_first_points)
1779 add_bevel_point(endpoint, nextpoint, pen, 1, last_point);
1781 add_bevel_point(endpoint, nextpoint, pen, 0, last_point);
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;
1792 extend_dx = -distance * segment_dx / segment_length;
1793 extend_dy = -distance * segment_dy / segment_length;
1795 bevel_dx = -distance * segment_dy / segment_length;
1796 bevel_dy = distance * segment_dx / segment_length;
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);
1803 *last_point = add_path_list_node(*last_point, endpoint->X + extend_dx - bevel_dx,
1804 endpoint->Y + extend_dy - bevel_dy, PathPointTypeLine);
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) */
1817 if (add_first_points)
1819 dx = -distance * segment_dx / segment_length;
1820 dy = -distance * segment_dy / segment_length;
1822 dx2 = dx * control_point_distance;
1823 dy2 = dy * control_point_distance;
1825 /* first 90-degree arc */
1826 *last_point = add_path_list_node(*last_point, endpoint->X + dy,
1827 endpoint->Y - dx, PathPointTypeLine);
1829 *last_point = add_path_list_node(*last_point, endpoint->X + dy + dx2,
1830 endpoint->Y - dx + dy2, PathPointTypeBezier);
1832 *last_point = add_path_list_node(*last_point, endpoint->X + dx + dy2,
1833 endpoint->Y + dy - dx2, PathPointTypeBezier);
1836 *last_point = add_path_list_node(*last_point, endpoint->X + dx,
1837 endpoint->Y + dy, PathPointTypeBezier);
1839 /* second 90-degree arc */
1840 *last_point = add_path_list_node(*last_point, endpoint->X + dx - dy2,
1841 endpoint->Y + dy + dx2, PathPointTypeBezier);
1843 *last_point = add_path_list_node(*last_point, endpoint->X - dy + dx2,
1844 endpoint->Y + dx + dy2, PathPointTypeBezier);
1846 *last_point = add_path_list_node(*last_point, endpoint->X - dy,
1847 endpoint->Y + dx, PathPointTypeBezier);
1854 static void widen_open_figure(GpPath *path, GpPen *pen, int start, int end,
1855 path_list_node_t **last_point)
1858 path_list_node_t *prev_point;
1863 prev_point = *last_point;
1865 widen_cap(&path->pathdata.Points[start], &path->pathdata.Points[start+1],
1866 pen, pen->startcap, pen->customstart, FALSE, TRUE, last_point);
1868 for (i=start+1; i<end; i++)
1869 widen_joint(&path->pathdata.Points[i-1], &path->pathdata.Points[i],
1870 &path->pathdata.Points[i+1], pen, last_point);
1872 widen_cap(&path->pathdata.Points[end], &path->pathdata.Points[end-1],
1873 pen, pen->endcap, pen->customend, TRUE, TRUE, last_point);
1875 for (i=end-1; i>start; i--)
1876 widen_joint(&path->pathdata.Points[i+1], &path->pathdata.Points[i],
1877 &path->pathdata.Points[i-1], pen, last_point);
1879 widen_cap(&path->pathdata.Points[start], &path->pathdata.Points[start+1],
1880 pen, pen->startcap, pen->customstart, TRUE, FALSE, last_point);
1882 prev_point->next->type = PathPointTypeStart;
1883 (*last_point)->type |= PathPointTypeCloseSubpath;
1886 static void widen_closed_figure(GpPath *path, GpPen *pen, int start, int end,
1887 path_list_node_t **last_point)
1890 path_list_node_t *prev_point;
1896 prev_point = *last_point;
1898 widen_joint(&path->pathdata.Points[end], &path->pathdata.Points[start],
1899 &path->pathdata.Points[start+1], pen, last_point);
1901 for (i=start+1; i<end; i++)
1902 widen_joint(&path->pathdata.Points[i-1], &path->pathdata.Points[i],
1903 &path->pathdata.Points[i+1], pen, last_point);
1905 widen_joint(&path->pathdata.Points[end-1], &path->pathdata.Points[end],
1906 &path->pathdata.Points[start], pen, last_point);
1908 prev_point->next->type = PathPointTypeStart;
1909 (*last_point)->type |= PathPointTypeCloseSubpath;
1912 prev_point = *last_point;
1914 widen_joint(&path->pathdata.Points[start], &path->pathdata.Points[end],
1915 &path->pathdata.Points[end-1], pen, last_point);
1917 for (i=end-1; i>start; i--)
1918 widen_joint(&path->pathdata.Points[i+1], &path->pathdata.Points[i],
1919 &path->pathdata.Points[i-1], pen, last_point);
1921 widen_joint(&path->pathdata.Points[start+1], &path->pathdata.Points[start],
1922 &path->pathdata.Points[end], pen, last_point);
1924 prev_point->next->type = PathPointTypeStart;
1925 (*last_point)->type |= PathPointTypeCloseSubpath;
1928 GpStatus WINGDIPAPI GdipWidenPath(GpPath *path, GpPen *pen, GpMatrix *matrix,
1931 GpPath *flat_path=NULL;
1933 path_list_node_t *points=NULL, *last_point=NULL;
1934 int i, subpath_start=0, new_length;
1937 TRACE("(%p,%p,%p,%0.2f)\n", path, pen, matrix, flatness);
1940 return InvalidParameter;
1942 if (path->pathdata.Count <= 1)
1945 status = GdipClonePath(path, &flat_path);
1948 status = GdipFlattenPath(flat_path, matrix, flatness);
1950 if (status == Ok && !init_path_list(&points, 314.0, 22.0))
1951 status = OutOfMemory;
1955 last_point = points;
1957 if (pen->endcap > LineCapRound)
1958 FIXME("unimplemented end cap %x\n", pen->endcap);
1960 if (pen->startcap > LineCapRound)
1961 FIXME("unimplemented start cap %x\n", pen->startcap);
1963 if (pen->dashcap != DashCapFlat)
1964 FIXME("unimplemented dash cap %d\n", pen->dashcap);
1966 if (pen->join == LineJoinRound)
1967 FIXME("unimplemented line join %d\n", pen->join);
1969 if (pen->dash != DashStyleSolid)
1970 FIXME("unimplemented dash style %d\n", pen->dash);
1972 if (pen->align != PenAlignmentCenter)
1973 FIXME("unimplemented pen alignment %d\n", pen->align);
1975 for (i=0; i < flat_path->pathdata.Count; i++)
1977 type = flat_path->pathdata.Types[i];
1979 if ((type&PathPointTypePathTypeMask) == PathPointTypeStart)
1982 if ((type&PathPointTypeCloseSubpath) == PathPointTypeCloseSubpath)
1984 widen_closed_figure(flat_path, pen, subpath_start, i, &last_point);
1986 else if (i == flat_path->pathdata.Count-1 ||
1987 (flat_path->pathdata.Types[i+1]&PathPointTypePathTypeMask) == PathPointTypeStart)
1989 widen_open_figure(flat_path, pen, subpath_start, i, &last_point);
1993 new_length = path_list_count(points)-1;
1995 if (!lengthen_path(path, new_length))
1996 status = OutOfMemory;
2001 path->pathdata.Count = new_length;
2003 last_point = points->next;
2004 for (i = 0; i < new_length; i++)
2006 path->pathdata.Points[i] = last_point->pt;
2007 path->pathdata.Types[i] = last_point->type;
2008 last_point = last_point->next;
2011 path->fill = FillModeWinding;
2014 free_path_list(points);
2016 GdipDeletePath(flat_path);
2021 GpStatus WINGDIPAPI GdipAddPathRectangle(GpPath *path, REAL x, REAL y,
2022 REAL width, REAL height)
2029 TRACE("(%p, %.2f, %.2f, %.2f, %.2f)\n", path, x, y, width, height);
2032 return InvalidParameter;
2034 /* make a backup copy of path data */
2035 if((retstat = GdipClonePath(path, &backup)) != Ok)
2038 /* rectangle should start as new path */
2039 old_new = path->newfigure;
2040 path->newfigure = TRUE;
2041 if((retstat = GdipAddPathLine(path,x,y,x+width,y)) != Ok){
2042 path->newfigure = old_new;
2047 ptf[0].Y = y+height;
2049 ptf[1].Y = y+height;
2051 if((retstat = GdipAddPathLine2(path, ptf, 2)) != Ok) goto fail;
2052 path->pathdata.Types[path->pathdata.Count-1] |= PathPointTypeCloseSubpath;
2055 GdipDeletePath(backup);
2060 GdipFree(path->pathdata.Points);
2061 GdipFree(path->pathdata.Types);
2062 memcpy(path, backup, sizeof(*path));
2068 GpStatus WINGDIPAPI GdipAddPathRectangleI(GpPath *path, INT x, INT y,
2069 INT width, INT height)
2071 TRACE("(%p, %d, %d, %d, %d)\n", path, x, y, width, height);
2073 return GdipAddPathRectangle(path,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
2076 GpStatus WINGDIPAPI GdipAddPathRectangles(GpPath *path, GDIPCONST GpRectF *rects, INT count)
2082 TRACE("(%p, %p, %d)\n", path, rects, count);
2084 /* count == 0 - verified condition */
2085 if(!path || !rects || count == 0)
2086 return InvalidParameter;
2091 /* make a backup copy */
2092 if((retstat = GdipClonePath(path, &backup)) != Ok)
2095 for(i = 0; i < count; i++){
2096 if((retstat = GdipAddPathRectangle(path,rects[i].X,rects[i].Y,rects[i].Width,rects[i].Height)) != Ok)
2101 GdipDeletePath(backup);
2106 GdipFree(path->pathdata.Points);
2107 GdipFree(path->pathdata.Types);
2108 memcpy(path, backup, sizeof(*path));
2114 GpStatus WINGDIPAPI GdipAddPathRectanglesI(GpPath *path, GDIPCONST GpRect *rects, INT count)
2120 TRACE("(%p, %p, %d)\n", path, rects, count);
2122 if(!rects || count == 0)
2123 return InvalidParameter;
2128 rectsF = GdipAlloc(sizeof(GpRectF)*count);
2130 for(i = 0;i < count;i++){
2131 rectsF[i].X = (REAL)rects[i].X;
2132 rectsF[i].Y = (REAL)rects[i].Y;
2133 rectsF[i].Width = (REAL)rects[i].Width;
2134 rectsF[i].Height = (REAL)rects[i].Height;
2137 retstat = GdipAddPathRectangles(path, rectsF, count);
2143 GpStatus WINGDIPAPI GdipSetPathMarker(GpPath* path)
2147 TRACE("(%p)\n", path);
2150 return InvalidParameter;
2152 count = path->pathdata.Count;
2154 /* set marker flag */
2156 path->pathdata.Types[count-1] |= PathPointTypePathMarker;
2161 GpStatus WINGDIPAPI GdipClearPathMarkers(GpPath* path)
2166 TRACE("(%p)\n", path);
2169 return InvalidParameter;
2171 count = path->pathdata.Count;
2173 for(i = 0; i < count - 1; i++){
2174 path->pathdata.Types[i] &= ~PathPointTypePathMarker;
2180 GpStatus WINGDIPAPI GdipWindingModeOutline(GpPath *path, GpMatrix *matrix, REAL flatness)
2182 FIXME("stub: %p, %p, %.2f\n", path, matrix, flatness);
2183 return NotImplemented;