2 Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
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.
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.
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., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include <dcp/types.h>
30 vector<Ratio const *> Ratio::_ratios;
33 Ratio::setup_ratios ()
35 _ratios.push_back (new Ratio (float(1290) / 1080, "119", _("1.19"), "119"));
36 _ratios.push_back (new Ratio (float(1440) / 1080, "133", _("4:3"), "133"));
37 _ratios.push_back (new Ratio (float(1485) / 1080, "138", _("Academy"), "137"));
38 _ratios.push_back (new Ratio (float(1800) / 1080, "166", _("1.66"), "166"));
39 _ratios.push_back (new Ratio (float(1920) / 1080, "178", _("16:9"), "178"));
40 _ratios.push_back (new Ratio (float(1998) / 1080, "185", _("Flat"), "F"));
41 _ratios.push_back (new Ratio (float(2048) / 858, "239", _("Scope"), "S"));
42 _ratios.push_back (new Ratio (float(2048) / 1080, "full-frame", _("Full frame"), "C"));
46 Ratio::from_id (string i)
48 /* We removed the ratio with id 137; replace it with 138 */
53 vector<Ratio const *>::iterator j = _ratios.begin ();
54 while (j != _ratios.end() && (*j)->id() != i) {
58 if (j == _ratios.end ()) {
65 /** @return Ratio corresponding to a given fractional ratio (+/- 0.01), or 0 */
67 Ratio::from_ratio (float r)
69 vector<Ratio const *>::iterator j = _ratios.begin ();
70 while (j != _ratios.end() && fabs ((*j)->ratio() - r) > 0.01) {
74 if (j == _ratios.end ()) {
82 Ratio::nearest_from_ratio (float r)
84 Ratio const * nearest = 0;
85 float distance = FLT_MAX;
87 for (vector<Ratio const *>::iterator i = _ratios.begin (); i != _ratios.end(); ++i) {
88 float const d = fabs ((*i)->ratio() - r);