2 Copyright (C) 2013-2016 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"
28 #include <libcxml/cxml.h>
29 #include <libxml++/libxml++.h>
30 #include <boost/foreach.hpp>
39 using boost::shared_ptr;
40 using boost::dynamic_pointer_cast;
42 int const SubtitleContentProperty::X_OFFSET = 500;
43 int const SubtitleContentProperty::Y_OFFSET = 501;
44 int const SubtitleContentProperty::X_SCALE = 502;
45 int const SubtitleContentProperty::Y_SCALE = 503;
46 int const SubtitleContentProperty::USE = 504;
47 int const SubtitleContentProperty::BURN = 505;
48 int const SubtitleContentProperty::LANGUAGE = 506;
49 int const SubtitleContentProperty::FONTS = 507;
50 int const SubtitleContentProperty::COLOUR = 508;
51 int const SubtitleContentProperty::OUTLINE = 509;
52 int const SubtitleContentProperty::OUTLINE_COLOUR = 510;
54 SubtitleContent::SubtitleContent (Content* parent, shared_ptr<const Film> film)
55 : ContentPart (parent, film)
62 , _colour (255, 255, 255)
64 , _outline_colour (0, 0, 0)
69 SubtitleContent::SubtitleContent (Content* parent, shared_ptr<const Film> film, cxml::ConstNodePtr node, int version)
70 : ContentPart (parent, film)
78 node->optional_number_child<int>("Red").get_value_or(255),
79 node->optional_number_child<int>("Green").get_value_or(255),
80 node->optional_number_child<int>("Blue").get_value_or(255)
82 , _outline (node->optional_bool_child("Outline").get_value_or(false))
84 node->optional_number_child<int>("OutlineRed").get_value_or(255),
85 node->optional_number_child<int>("OutlineGreen").get_value_or(255),
86 node->optional_number_child<int>("OutlineBlue").get_value_or(255)
90 _use = node->bool_child ("UseSubtitles");
91 _burn = node->bool_child ("BurnSubtitles");
95 _x_offset = node->number_child<double> ("SubtitleXOffset");
96 _y_offset = node->number_child<double> ("SubtitleYOffset");
98 _y_offset = node->number_child<double> ("SubtitleOffset");
102 _x_scale = node->number_child<double> ("SubtitleXScale");
103 _y_scale = node->number_child<double> ("SubtitleYScale");
105 _x_scale = _y_scale = node->number_child<double> ("SubtitleScale");
108 _language = node->optional_string_child ("SubtitleLanguage").get_value_or ("");
110 list<cxml::NodePtr> fonts = node->node_children ("Font");
111 for (list<cxml::NodePtr>::const_iterator i = fonts.begin(); i != fonts.end(); ++i) {
112 _fonts.push_back (shared_ptr<Font> (new Font (*i)));
118 SubtitleContent::SubtitleContent (Content* parent, shared_ptr<const Film> film, vector<shared_ptr<Content> > c)
119 : ContentPart (parent, film)
121 shared_ptr<SubtitleContent> ref = c[0]->subtitle;
122 DCPOMATIC_ASSERT (ref);
123 list<shared_ptr<Font> > ref_fonts = ref->fonts ();
125 for (size_t i = 1; i < c.size(); ++i) {
127 if (c[i]->subtitle->use() != ref->use()) {
128 throw JoinError (_("Content to be joined must have the same 'use subtitles' setting."));
131 if (c[i]->subtitle->burn() != ref->burn()) {
132 throw JoinError (_("Content to be joined must have the same 'burn subtitles' setting."));
135 if (c[i]->subtitle->x_offset() != ref->x_offset()) {
136 throw JoinError (_("Content to be joined must have the same subtitle X offset."));
139 if (c[i]->subtitle->y_offset() != ref->y_offset()) {
140 throw JoinError (_("Content to be joined must have the same subtitle Y offset."));
143 if (c[i]->subtitle->x_scale() != ref->x_scale()) {
144 throw JoinError (_("Content to be joined must have the same subtitle X scale."));
147 if (c[i]->subtitle->y_scale() != ref->y_scale()) {
148 throw JoinError (_("Content to be joined must have the same subtitle Y scale."));
151 list<shared_ptr<Font> > fonts = c[i]->subtitle->fonts ();
152 if (fonts.size() != ref_fonts.size()) {
153 throw JoinError (_("Content to be joined must use the same fonts."));
156 list<shared_ptr<Font> >::const_iterator j = ref_fonts.begin ();
157 list<shared_ptr<Font> >::const_iterator k = fonts.begin ();
159 while (j != ref_fonts.end ()) {
161 throw JoinError (_("Content to be joined must use the same fonts."));
169 _burn = ref->burn ();
170 _x_offset = ref->x_offset ();
171 _y_offset = ref->y_offset ();
172 _x_scale = ref->x_scale ();
173 _y_scale = ref->y_scale ();
174 _language = ref->language ();
180 /** _mutex must not be held on entry */
182 SubtitleContent::as_xml (xmlpp::Node* root) const
184 boost::mutex::scoped_lock lm (_mutex);
186 root->add_child("UseSubtitles")->add_child_text (raw_convert<string> (_use));
187 root->add_child("BurnSubtitles")->add_child_text (raw_convert<string> (_burn));
188 root->add_child("SubtitleXOffset")->add_child_text (raw_convert<string> (_x_offset));
189 root->add_child("SubtitleYOffset")->add_child_text (raw_convert<string> (_y_offset));
190 root->add_child("SubtitleXScale")->add_child_text (raw_convert<string> (_x_scale));
191 root->add_child("SubtitleYScale")->add_child_text (raw_convert<string> (_y_scale));
192 root->add_child("SubtitleLanguage")->add_child_text (_language);
193 root->add_child("Red")->add_child_text (raw_convert<string> (_colour.r));
194 root->add_child("Green")->add_child_text (raw_convert<string> (_colour.g));
195 root->add_child("Blue")->add_child_text (raw_convert<string> (_colour.b));
196 root->add_child("Outline")->add_child_text (raw_convert<string> (_outline));
197 root->add_child("OutlineRed")->add_child_text (raw_convert<string> (_outline_colour.r));
198 root->add_child("OutlineGreen")->add_child_text (raw_convert<string> (_outline_colour.g));
199 root->add_child("OutlineBlue")->add_child_text (raw_convert<string> (_outline_colour.b));
201 for (list<shared_ptr<Font> >::const_iterator i = _fonts.begin(); i != _fonts.end(); ++i) {
202 (*i)->as_xml (root->add_child("Font"));
207 SubtitleContent::identifier () const
210 s << raw_convert<string> (x_scale())
211 << "_" << raw_convert<string> (y_scale())
212 << "_" << raw_convert<string> (x_offset())
213 << "_" << raw_convert<string> (y_offset());
215 /* XXX: I suppose really _fonts shouldn't be in here, since not all
216 types of subtitle content involve fonts.
218 BOOST_FOREACH (shared_ptr<Font> f, _fonts) {
219 for (int i = 0; i < FontFiles::VARIANTS; ++i) {
220 s << "_" << f->file(static_cast<FontFiles::Variant>(i)).get_value_or ("Default");
224 /* The language is for metadata only, and doesn't affect
225 how this content looks.
232 SubtitleContent::add_font (shared_ptr<Font> font)
234 _fonts.push_back (font);
239 SubtitleContent::connect_to_fonts ()
241 BOOST_FOREACH (boost::signals2::connection& i, _font_connections) {
245 _font_connections.clear ();
247 BOOST_FOREACH (shared_ptr<Font> i, _fonts) {
248 _font_connections.push_back (i->Changed.connect (boost::bind (&SubtitleContent::font_changed, this)));
253 SubtitleContent::font_changed ()
255 _parent->signal_changed (SubtitleContentProperty::FONTS);
259 SubtitleContent::set_colour (dcp::Colour colour)
261 maybe_set (_colour, colour, SubtitleContentProperty::COLOUR);
265 SubtitleContent::set_outline (bool o)
267 maybe_set (_outline, o, SubtitleContentProperty::OUTLINE);
271 SubtitleContent::set_outline_colour (dcp::Colour colour)
273 maybe_set (_outline_colour, colour, SubtitleContentProperty::OUTLINE_COLOUR);
277 SubtitleContent::set_use (bool u)
279 maybe_set (_use, u, SubtitleContentProperty::USE);
283 SubtitleContent::set_burn (bool b)
285 maybe_set (_burn, b, SubtitleContentProperty::BURN);
289 SubtitleContent::set_x_offset (double o)
291 maybe_set (_x_offset, o, SubtitleContentProperty::X_OFFSET);
295 SubtitleContent::set_y_offset (double o)
297 maybe_set (_y_offset, o, SubtitleContentProperty::Y_OFFSET);
301 SubtitleContent::set_x_scale (double s)
303 maybe_set (_x_scale, s, SubtitleContentProperty::X_SCALE);
307 SubtitleContent::set_y_scale (double s)
309 maybe_set (_y_scale, s, SubtitleContentProperty::Y_SCALE);
313 SubtitleContent::set_language (string language)
315 maybe_set (_language, language, SubtitleContentProperty::LANGUAGE);