2 Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
23 #include <dcp/types.h>
30 using boost::optional;
32 vector<Ratio const *> Ratio::_ratios;
35 Ratio::setup_ratios ()
37 _ratios.push_back (new Ratio (float(1290) / 1080, "119", _("1.19"), optional<string>(), "119"));
38 _ratios.push_back (new Ratio (float(1440) / 1080, "133", _("1.33 (4:3)"), optional<string>(), "133"));
39 _ratios.push_back (new Ratio (float(1485) / 1080, "138", _("1.38 (Academy)"), optional<string>(), "137"));
40 _ratios.push_back (new Ratio (float(1544) / 1080, "143", _("1.43 (IMAX)"), optional<string>(), "143"));
41 _ratios.push_back (new Ratio (float(1800) / 1080, "166", _("1.66"), optional<string>(), "166"));
42 _ratios.push_back (new Ratio (float(1920) / 1080, "178", _("1.78 (16:9 or HD)"), optional<string>(), "178"));
43 _ratios.push_back (new Ratio (float(1998) / 1080, "185", _("1.85 (Flat)"), string(_("DCI Flat")), "F"));
44 _ratios.push_back (new Ratio (float(2048) / 872, "235", _("2.35 (35mm Scope)"), optional<string>(), "S"));
45 _ratios.push_back (new Ratio (float(2048) / 858, "239", _("2.39 (Scope)"), string(_("DCI Scope")), "S"));
46 _ratios.push_back (new Ratio (float(2048) / 1080, "190", _("1.90 (Full frame)"), string(_("Full frame")), "C"));
50 Ratio::from_id (string i)
52 /* We removed the ratio with id 137; replace it with 138 */
57 vector<Ratio const *>::iterator j = _ratios.begin ();
58 while (j != _ratios.end() && (*j)->id() != i) {
62 if (j == _ratios.end ()) {
69 /** @return Ratio corresponding to a given fractional ratio (+/- 0.01), or 0 */
71 Ratio::from_ratio (float r)
73 vector<Ratio const *>::iterator j = _ratios.begin ();
74 while (j != _ratios.end() && fabs ((*j)->ratio() - r) > 0.01) {
78 if (j == _ratios.end ()) {
86 Ratio::nearest_from_ratio (float r)
88 Ratio const * nearest = 0;
89 float distance = FLT_MAX;
91 for (vector<Ratio const *>::iterator i = _ratios.begin (); i != _ratios.end(); ++i) {
92 float const d = fabs ((*i)->ratio() - r);
102 vector<Ratio const *>
105 vector<Ratio const *> r;
106 r.push_back (Ratio::from_id ("185"));
107 r.push_back (Ratio::from_id ("239"));
108 r.push_back (Ratio::from_id ("190"));
113 Ratio::container_nickname () const
115 DCPOMATIC_ASSERT (_container_nickname);
116 return *_container_nickname;