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nsxivimage.h

75 lines · 1.7 KB · Objective-C

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1/* sxiv: image.h
2 * Copyright (c) 2011 Bert Muennich <muennich at informatik.hu-berlin.de>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program 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
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 */
18
19#ifndef IMAGE_H
20#define IMAGE_H
21
22#include "window.h"
23
24typedef enum scalemode_e {
25 SCALE_DOWN = 0,
26 SCALE_FIT,
27 SCALE_ZOOM
28} scalemode_t;
29
30typedef enum pandir_e {
31 PAN_LEFT = 0,
32 PAN_RIGHT,
33 PAN_UP,
34 PAN_DOWN
35} pandir_t;
36
37typedef struct img_s {
38 float zoom;
39 scalemode_t scalemode;
40
41 unsigned char valid;
42 unsigned char re;
43 unsigned char checkpan;
44 unsigned char aa;
45
46 int x;
47 int y;
48 int w;
49 int h;
50} img_t;
51
52void img_init(img_t*, win_t*);
53void img_free(img_t*);
54
55int img_check(const char*);
56int img_load(img_t*, const char*);
57
58void img_render(img_t*, win_t*);
59
60int img_fit_win(img_t*, win_t*);
61int img_center(img_t*, win_t*);
62
63int img_zoom(img_t*, float);
64int img_zoom_in(img_t*);
65int img_zoom_out(img_t*);
66
67int img_move(img_t*, win_t*, int, int);
68int img_pan(img_t*, win_t*, pandir_t);
69
70void img_rotate_left(img_t*, win_t*);
71void img_rotate_right(img_t*, win_t*);
72
73void img_toggle_antialias(img_t*);
74
75#endif /* IMAGE_H */