2 Copyright (C) 2013-2014 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.
20 #include "subtitle_content.h"
22 #include "exceptions.h"
23 #include "safe_stringstream.h"
25 #include "raw_convert.h"
26 #include <libcxml/cxml.h>
34 using boost::shared_ptr;
35 using boost::dynamic_pointer_cast;
37 int const SubtitleContentProperty::SUBTITLE_X_OFFSET = 500;
38 int const SubtitleContentProperty::SUBTITLE_Y_OFFSET = 501;
39 int const SubtitleContentProperty::SUBTITLE_X_SCALE = 502;
40 int const SubtitleContentProperty::SUBTITLE_Y_SCALE = 503;
41 int const SubtitleContentProperty::USE_SUBTITLES = 504;
42 int const SubtitleContentProperty::SUBTITLE_LANGUAGE = 505;
43 int const SubtitleContentProperty::FONTS = 506;
45 SubtitleContent::SubtitleContent (shared_ptr<const Film> f)
47 , _use_subtitles (false)
48 , _subtitle_x_offset (0)
49 , _subtitle_y_offset (0)
50 , _subtitle_x_scale (1)
51 , _subtitle_y_scale (1)
56 SubtitleContent::SubtitleContent (shared_ptr<const Film> f, boost::filesystem::path p)
58 , _use_subtitles (false)
59 , _subtitle_x_offset (0)
60 , _subtitle_y_offset (0)
61 , _subtitle_x_scale (1)
62 , _subtitle_y_scale (1)
67 SubtitleContent::SubtitleContent (shared_ptr<const Film> f, cxml::ConstNodePtr node, int version)
69 , _use_subtitles (false)
70 , _subtitle_x_offset (0)
71 , _subtitle_y_offset (0)
72 , _subtitle_x_scale (1)
73 , _subtitle_y_scale (1)
76 _use_subtitles = node->bool_child ("UseSubtitles");
78 _use_subtitles = false;
82 _subtitle_x_offset = node->number_child<float> ("SubtitleXOffset");
83 _subtitle_y_offset = node->number_child<float> ("SubtitleYOffset");
85 _subtitle_y_offset = node->number_child<float> ("SubtitleOffset");
89 _subtitle_x_scale = node->number_child<float> ("SubtitleXScale");
90 _subtitle_y_scale = node->number_child<float> ("SubtitleYScale");
92 _subtitle_x_scale = _subtitle_y_scale = node->number_child<float> ("SubtitleScale");
95 _subtitle_language = node->optional_string_child ("SubtitleLanguage").get_value_or ("");
97 list<cxml::NodePtr> fonts = node->node_children ("Font");
98 for (list<cxml::NodePtr>::const_iterator i = fonts.begin(); i != fonts.end(); ++i) {
99 _fonts.push_back (shared_ptr<Font> (new Font (*i)));
103 SubtitleContent::SubtitleContent (shared_ptr<const Film> f, vector<shared_ptr<Content> > c)
106 shared_ptr<SubtitleContent> ref = dynamic_pointer_cast<SubtitleContent> (c[0]);
107 DCPOMATIC_ASSERT (ref);
108 list<shared_ptr<Font> > ref_fonts = ref->fonts ();
110 for (size_t i = 0; i < c.size(); ++i) {
111 shared_ptr<SubtitleContent> sc = dynamic_pointer_cast<SubtitleContent> (c[i]);
113 if (sc->use_subtitles() != ref->use_subtitles()) {
114 throw JoinError (_("Content to be joined must have the same 'use subtitles' setting."));
117 if (sc->subtitle_x_offset() != ref->subtitle_x_offset()) {
118 throw JoinError (_("Content to be joined must have the same subtitle X offset."));
121 if (sc->subtitle_y_offset() != ref->subtitle_y_offset()) {
122 throw JoinError (_("Content to be joined must have the same subtitle Y offset."));
125 if (sc->subtitle_x_scale() != ref->subtitle_x_scale()) {
126 throw JoinError (_("Content to be joined must have the same subtitle X scale."));
129 if (sc->subtitle_y_scale() != ref->subtitle_y_scale()) {
130 throw JoinError (_("Content to be joined must have the same subtitle Y scale."));
133 list<shared_ptr<Font> > fonts = sc->fonts ();
134 if (fonts.size() != ref_fonts.size()) {
135 throw JoinError (_("Content to be joined must use the same fonts."));
138 list<shared_ptr<Font> >::const_iterator j = ref_fonts.begin ();
139 list<shared_ptr<Font> >::const_iterator k = fonts.begin ();
141 while (j != ref_fonts.end ()) {
143 throw JoinError (_("Content to be joined must use the same fonts."));
150 _use_subtitles = ref->use_subtitles ();
151 _subtitle_x_offset = ref->subtitle_x_offset ();
152 _subtitle_y_offset = ref->subtitle_y_offset ();
153 _subtitle_x_scale = ref->subtitle_x_scale ();
154 _subtitle_y_scale = ref->subtitle_y_scale ();
155 _subtitle_language = ref->subtitle_language ();
159 /** _mutex must not be held on entry */
161 SubtitleContent::as_xml (xmlpp::Node* root) const
163 boost::mutex::scoped_lock lm (_mutex);
165 root->add_child("UseSubtitles")->add_child_text (raw_convert<string> (_use_subtitles));
166 root->add_child("SubtitleXOffset")->add_child_text (raw_convert<string> (_subtitle_x_offset));
167 root->add_child("SubtitleYOffset")->add_child_text (raw_convert<string> (_subtitle_y_offset));
168 root->add_child("SubtitleXScale")->add_child_text (raw_convert<string> (_subtitle_x_scale));
169 root->add_child("SubtitleYScale")->add_child_text (raw_convert<string> (_subtitle_y_scale));
170 root->add_child("SubtitleLanguage")->add_child_text (_subtitle_language);
172 for (list<shared_ptr<Font> >::const_iterator i = _fonts.begin(); i != _fonts.end(); ++i) {
173 (*i)->as_xml (root->add_child("Font"));
178 SubtitleContent::set_use_subtitles (bool u)
181 boost::mutex::scoped_lock lm (_mutex);
184 signal_changed (SubtitleContentProperty::USE_SUBTITLES);
188 SubtitleContent::set_subtitle_x_offset (double o)
191 boost::mutex::scoped_lock lm (_mutex);
192 _subtitle_x_offset = o;
194 signal_changed (SubtitleContentProperty::SUBTITLE_X_OFFSET);
198 SubtitleContent::set_subtitle_y_offset (double o)
201 boost::mutex::scoped_lock lm (_mutex);
202 _subtitle_y_offset = o;
204 signal_changed (SubtitleContentProperty::SUBTITLE_Y_OFFSET);
208 SubtitleContent::set_subtitle_x_scale (double s)
211 boost::mutex::scoped_lock lm (_mutex);
212 _subtitle_x_scale = s;
214 signal_changed (SubtitleContentProperty::SUBTITLE_X_SCALE);
218 SubtitleContent::set_subtitle_y_scale (double s)
221 boost::mutex::scoped_lock lm (_mutex);
222 _subtitle_y_scale = s;
224 signal_changed (SubtitleContentProperty::SUBTITLE_Y_SCALE);
228 SubtitleContent::set_subtitle_language (string language)
231 boost::mutex::scoped_lock lm (_mutex);
232 _subtitle_language = language;
234 signal_changed (SubtitleContentProperty::SUBTITLE_LANGUAGE);
238 SubtitleContent::identifier () const
241 s << Content::identifier()
242 << "_" << raw_convert<string> (subtitle_x_scale())
243 << "_" << raw_convert<string> (subtitle_y_scale())
244 << "_" << raw_convert<string> (subtitle_x_offset())
245 << "_" << raw_convert<string> (subtitle_y_offset());
247 /* The language is for metadata only, and doesn't affect
248 how this content looks.