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
78
79
80
81
|
/*
* Copyright (C) 2003 Christian Persch
*
* Modified 2005 by James Bowes for use in atril.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $Id$
*/
#ifndef EPHY_ZOOM_H
#define EPHY_ZOOM_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <glib.h>
#include <glib/gi18n.h>
G_BEGIN_DECLS
#define EPHY_ZOOM_BEST_FIT (-3.0)
#define EPHY_ZOOM_FIT_WIDTH (-4.0)
#define EPHY_ZOOM_SEPARATOR (-5.0)
static const
struct
{
gchar *name;
float level;
}
zoom_levels[] =
{
{ N_("Best Fit"), EPHY_ZOOM_BEST_FIT },
{ N_("Fit Page Width"), EPHY_ZOOM_FIT_WIDTH },
{ NULL, EPHY_ZOOM_SEPARATOR },
{ N_("50%"), 0.5 },
{ N_("70%"), 0.7071067811 },
{ N_("85%"), 0.8408964152 },
{ N_("100%"), 1.0 },
{ N_("125%"), 1.1892071149 },
{ N_("150%"), 1.4142135623 },
{ N_("175%"), 1.6817928304 },
{ N_("200%"), 2.0 },
{ N_("300%"), 2.8284271247 },
{ N_("400%"), 4.0 },
{ N_("800%"), 8.0 },
{ N_("1600%"), 16.0 },
{ N_("3200%"), 32.0 },
{ N_("6400%"), 64.0 }
};
static const guint n_zoom_levels = G_N_ELEMENTS (zoom_levels);
#define ZOOM_MINIMAL (EPHY_ZOOM_SEPARATOR)
#define ZOOM_MAXIMAL (zoom_levels[n_zoom_levels - 1].level)
#define ZOOM_IN (-1.0)
#define ZOOM_OUT (-2.0)
guint ephy_zoom_get_zoom_level_index (float level);
float ephy_zoom_get_changed_zoom_level (float level, gint steps);
float ephy_zoom_get_nearest_zoom_level (float level);
G_END_DECLS
#endif
|
