From 81c317f71b4150f9ba6299190d5272837c548ef1 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Mon, 8 Jan 2018 23:54:10 +0000
Subject: When doing jump-to-selected jump to the first subtitle in
 TextSubtitleContent (#1160).

---
 src/lib/text_subtitle.cc | 14 +++++++++++++-
 src/lib/text_subtitle.h  |  1 +
 2 files changed, 14 insertions(+), 1 deletion(-)

(limited to 'src/lib')

diff --git a/src/lib/text_subtitle.cc b/src/lib/text_subtitle.cc
index 0f5e055cf..2de815459 100644
--- a/src/lib/text_subtitle.cc
+++ b/src/lib/text_subtitle.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2014-2016 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2014-2018 Carl Hetherington <cth@carlh.net>
 
     This file is part of DCP-o-matic.
 
@@ -36,6 +36,7 @@ using std::cout;
 using std::string;
 using boost::shared_ptr;
 using boost::scoped_array;
+using boost::optional;
 using dcp::Data;
 
 TextSubtitle::TextSubtitle (shared_ptr<const TextSubtitleContent> content)
@@ -85,6 +86,17 @@ TextSubtitle::TextSubtitle (shared_ptr<const TextSubtitleContent> content)
 	delete reader;
 }
 
+/** @return time of first subtitle, if there is one */
+optional<ContentTime>
+TextSubtitle::first () const
+{
+	if (_subtitles.empty()) {
+		return optional<ContentTime>();
+	}
+
+	return ContentTime::from_seconds(_subtitles[0].from.all_as_seconds());
+}
+
 ContentTime
 TextSubtitle::length () const
 {
diff --git a/src/lib/text_subtitle.h b/src/lib/text_subtitle.h
index c02f7a14b..94adb5cc5 100644
--- a/src/lib/text_subtitle.h
+++ b/src/lib/text_subtitle.h
@@ -37,6 +37,7 @@ class TextSubtitle
 public:
 	TextSubtitle (boost::shared_ptr<const TextSubtitleContent>);
 
+	boost::optional<ContentTime> first () const;
 	ContentTime length () const;
 
 protected:
-- 
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