1 /* Libart_LGPL - library of basic graphic primitives
2 * Copyright (C) 1998 Raph Levien
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 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 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
18 */
20 #ifndef __ART_SVP_H__
21 #define __ART_SVP_H__
23 /* Basic data structures and constructors for sorted vector paths */
25 #ifdef LIBART_COMPILATION
26 #include "art_rect.h"
27 #include "art_point.h"
28 #else
29 #include <art_rect.h>
30 #include <art_point.h>
31 #endif
33 #ifdef __cplusplus
34 extern "C" {
35 #endif /* __cplusplus */
37 typedef struct _ArtSVP ArtSVP;
38 typedef struct _ArtSVPSeg ArtSVPSeg;
40 struct _ArtSVPSeg {
41 int n_points;
42 int dir; /* == 0 for "up", 1 for "down" */
43 ArtDRect bbox;
44 ArtPoint *points;
45 };
47 struct _ArtSVP {
48 int n_segs;
49 ArtSVPSeg segs[1];
50 };
52 int
53 art_svp_add_segment (ArtSVP **p_vp, int *pn_segs_max,
54 int **pn_points_max,
55 int n_points, int dir, ArtPoint *points,
56 ArtDRect *bbox);
58 void
59 art_svp_free (ArtSVP *svp);
61 int
62 art_svp_seg_compare (const void *s1, const void *s2);
64 #ifdef __cplusplus
65 }
66 #endif /* __cplusplus */
68 #endif /* __ART_SVP_H__ */