Move VideoContentScale to its own file.

[dcpomatic.git] / src / lib / video_content_scale.h

diff --git a/src/lib/video_content_scale.h b/src/lib/video_content_scale.h
new file mode 100644 (file)
index 0000000..87dd2f1
--- /dev/null
+++ b/src/lib/video_content_scale.h
@@ -0,0 +1,77 @@
+/*
+    Copyright (C) 2013-2014 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.
+
+*/
+
+#ifndef DCPOMATIC_VIDEO_CONTENT_SCALE_H
+#define DCPOMATIC_VIDEO_CONTENT_SCALE_H
+
+#include <vector>
+#include <boost/shared_ptr.hpp>
+#include <libdcp/util.h>
+
+namespace cxml {
+       class Node;
+}
+
+namespace xmlpp {
+       class Node;
+}
+
+class Ratio;
+class VideoContent;
+
+class VideoContentScale
+{
+public:
+       VideoContentScale ();
+       VideoContentScale (Ratio const *);
+       VideoContentScale (bool);
+       VideoContentScale (boost::shared_ptr<cxml::Node>);
+
+       libdcp::Size size (boost::shared_ptr<const VideoContent>, libdcp::Size, libdcp::Size) const;
+       std::string id () const;
+       std::string name () const;
+       void as_xml (xmlpp::Node *) const;
+
+       Ratio const * ratio () const {
+               return _ratio;
+       }
+
+       bool scale () const {
+               return _scale;
+       }
+
+       static void setup_scales ();
+       static std::vector<VideoContentScale> all () {
+               return _scales;
+       }
+       static VideoContentScale from_id (std::string id);
+
+private:
+       /** a ratio to stretch the content to, or 0 for no stretch */
+       Ratio const * _ratio;
+       /** true if we want to scale the content */
+       bool _scale;
+
+       static std::vector<VideoContentScale> _scales;
+};
+
+bool operator== (VideoContentScale const & a, VideoContentScale const & b);
+bool operator!= (VideoContentScale const & a, VideoContentScale const & b);
+
+#endif