From df17bbd25da69fc38eb2dcd8b4a2531cf0bab0bc Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Mon, 23 Jul 2018 11:20:12 +0100
Subject: More automated renaming.

ActiveCaptions -> ActiveText
BitmapCaption -> BitmapText
ContentCaption -> ContentText
ContentTextCaption -> ContentStringText
TextCaptionFileContent -> StringTextFileContent
TextCaptionFileDecoder -> StringTextFileDecoder
TextCaptionFile -> StringTextFile
TextCaption -> StringText
PlayerCaption -> PlayerText
CaptionContent -> TextContent
CaptionDecoder -> TextDecoder
CaptionPanel -> TextPanel
CaptionView -> TextView
CaptionAppearanceDialog -> SubtitleAppearanceDialog
CaptionType -> TextType
---
 src/lib/active_text.cc | 162 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 162 insertions(+)
 create mode 100644 src/lib/active_text.cc

(limited to 'src/lib/active_text.cc')

diff --git a/src/lib/active_text.cc b/src/lib/active_text.cc
new file mode 100644
index 000000000..de3dc8165
--- /dev/null
+++ b/src/lib/active_text.cc
@@ -0,0 +1,162 @@
+/*
+    Copyright (C) 2017-2018 Carl Hetherington <cth@carlh.net>
+
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic 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 of the License, or
+    (at your option) any later version.
+
+    DCP-o-matic 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 DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#include "active_text.h"
+#include "text_content.h"
+#include <boost/shared_ptr.hpp>
+#include <boost/weak_ptr.hpp>
+
+using std::list;
+using std::pair;
+using std::make_pair;
+using boost::weak_ptr;
+using boost::shared_ptr;
+using boost::optional;
+
+void
+ActiveText::add (DCPTimePeriod period, list<PlayerText>& pc, list<Period> p) const
+{
+	BOOST_FOREACH (Period i, p) {
+		DCPTimePeriod test (i.from, i.to.get_value_or(DCPTime::max()));
+		optional<DCPTimePeriod> overlap = period.overlap (test);
+		if (overlap && overlap->duration() > DCPTime(period.duration().get() / 2)) {
+			pc.push_back (i.subs);
+		}
+	}
+}
+
+list<PlayerText>
+ActiveText::get (DCPTimePeriod period) const
+{
+	list<PlayerText> ps;
+
+	for (Map::const_iterator i = _data.begin(); i != _data.end(); ++i) {
+
+		shared_ptr<const TextContent> caption = i->first.lock ();
+		if (!caption || !caption->use()) {
+			continue;
+		}
+
+		add (period, ps, i->second);
+	}
+
+	return ps;
+}
+
+/** Get the open captions that should be burnt into a given period.
+ *  @param period Period of interest.
+ *  @param always_burn_captions Always burn captions even if their content is not set to burn.
+ */
+list<PlayerText>
+ActiveText::get_burnt (DCPTimePeriod period, bool always_burn_captions) const
+{
+	list<PlayerText> ps;
+
+	for (Map::const_iterator i = _data.begin(); i != _data.end(); ++i) {
+
+		shared_ptr<const TextContent> caption = i->first.lock ();
+		if (!caption) {
+			continue;
+		}
+
+		if (!caption->use() || (!always_burn_captions && !caption->burn())) {
+			/* Not burning this content */
+			continue;
+		}
+
+		add (period, ps, i->second);
+	}
+
+	return ps;
+}
+
+/** Remove subtitles that finish before a given time from our list.
+ *  @param time Time to remove before.
+ */
+void
+ActiveText::clear_before (DCPTime time)
+{
+	Map updated;
+	for (Map::const_iterator i = _data.begin(); i != _data.end(); ++i) {
+		list<Period> as;
+		BOOST_FOREACH (Period j, i->second) {
+			if (!j.to || j.to.get() >= time) {
+				as.push_back (j);
+			}
+		}
+		if (!as.empty ()) {
+			updated[i->first] = as;
+		}
+	}
+	_data = updated;
+}
+
+/** Add a new subtitle with a from time.
+ *  @param content Content that the subtitle is from.
+ *  @param ps Subtitles.
+ *  @param from From time for these subtitles.
+ */
+void
+ActiveText::add_from (weak_ptr<const TextContent> content, PlayerText ps, DCPTime from)
+{
+	if (_data.find(content) == _data.end()) {
+		_data[content] = list<Period>();
+	}
+	_data[content].push_back (Period (ps, from));
+}
+
+/** Add the to time for the last subtitle added from a piece of content.
+ *  @param content Content that the subtitle is from.
+ *  @param to To time for the last subtitle submitted to add_from for this content.
+ *  @return Return the corresponding subtitles and their from time.
+ */
+pair<PlayerText, DCPTime>
+ActiveText::add_to (weak_ptr<const TextContent> content, DCPTime to)
+{
+	DCPOMATIC_ASSERT (_data.find(content) != _data.end());
+
+	_data[content].back().to = to;
+
+	BOOST_FOREACH (StringText& i, _data[content].back().subs.text) {
+		i.set_out (dcp::Time(to.seconds(), 1000));
+	}
+
+	return make_pair (_data[content].back().subs, _data[content].back().from);
+}
+
+/** @param content Some content.
+ *  @return true if we have any active subtitles from this content.
+ */
+bool
+ActiveText::have (weak_ptr<const TextContent> content) const
+{
+	Map::const_iterator i = _data.find(content);
+	if (i == _data.end()) {
+		return false;
+	}
+
+	return !i->second.empty();
+}
+
+void
+ActiveText::clear ()
+{
+	_data.clear ();
+}
-- 
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