1 files changed, 57 insertions, 0 deletions
diff --git a/src/time_pair.h b/src/time_pair.h
new file mode 100644
index 0000000..0ed039d
--- /dev/null
+++ b/src/time_pair.h
@@ -0,0 +1,57 @@
+/*
+    Copyright (C) 2014 Carl Hetherington <cth@carlh.net>
+
+    This program 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.
+
+    This program 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 this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "frame_time.h"
+#include "metric_time.h"
+#include <boost/optional.hpp>
+
+namespace sub {
+
+class TimePair
+{
+public:
+	void set_frame (FrameTime t) {
+		_frame = t;
+		_metric = boost::optional<MetricTime> ();
+	}
+
+	void set_metric (MetricTime t) {
+		_metric = t;
+		_frame = boost::optional<FrameTime> ();
+	}
+
+	boost::optional<FrameTime> frame () const {
+		return _frame;
+	}
+	
+	boost::optional<MetricTime> metric () const {
+		return _metric;
+	}
+	
+	FrameTime  frame  (float frames_per_second) const;
+	MetricTime metric (float frames_per_second) const;
+
+	bool operator== (TimePair const & other) const;
+	
+private:
+	boost::optional<FrameTime> _frame;
+	boost::optional<MetricTime> _metric;
+};
+
+}