1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
/* Libart_LGPL - library of basic graphic primitives
* Copyright (C) 1998 Raph Levien
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
* Boston, MA 02111-1307, USA.
*/
#ifndef __ART_RECT_H__
#define __ART_RECT_H__
#ifdef __cplusplus
extern "C" {
#endif
typedef struct _ArtDRect ArtDRect;
typedef struct _ArtIRect ArtIRect;
struct _ArtDRect {
/*< public >*/
double x0, y0, x1, y1;
};
struct _ArtIRect {
/*< public >*/
int x0, y0, x1, y1;
};
/* Make a copy of the rectangle. */
void art_irect_copy (ArtIRect *dest, const ArtIRect *src);
/* Find the smallest rectangle that includes both source rectangles. */
void art_irect_union (ArtIRect *dest,
const ArtIRect *src1, const ArtIRect *src2);
/* Return the intersection of the two rectangles */
void art_irect_intersect (ArtIRect *dest,
const ArtIRect *src1, const ArtIRect *src2);
/* Return true if the rectangle is empty. */
int art_irect_empty (const ArtIRect *src);
/* Make a copy of the rectangle. */
void art_drect_copy (ArtDRect *dest, const ArtDRect *src);
/* Find the smallest rectangle that includes both source rectangles. */
void art_drect_union (ArtDRect *dest,
const ArtDRect *src1, const ArtDRect *src2);
/* Return the intersection of the two rectangles */
void art_drect_intersect (ArtDRect *dest,
const ArtDRect *src1, const ArtDRect *src2);
/* Return true if the rectangle is empty. */
int art_drect_empty (const ArtDRect *src);
void
art_drect_affine_transform (ArtDRect *dst, const ArtDRect *src,
const double matrix[6]);
void art_drect_to_irect (ArtIRect *dst, ArtDRect *src);
#ifdef __cplusplus
}
#endif
#endif
|
