ResourcePreviewer: initial version

Added initial version of ResourcePreviewer, a replacement for the old
PresetPreviewPlayHandle technology. It can take any ResourceItem and
preview it depending on its type.

Signed-off-by: Tobias Doerffel <tobias.doerffel@gmail.com>

include/ResourcePreviewer.h

@@ -0,0 +1,59 @@
+/*
+ * ResourcePreviewer.h - header file for ResourcePreviewer
+ *
+ * Copyright (c) 2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
+ *
+ * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.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 (see COPYING); if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ */
+
+
+#ifndef _RESOURCE_PREVIEWER_H
+#define _RESOURCE_PREVIEWER_H
+
+#include "track_container.h"
+
+class ResourceItem;
+class instrumentTrack;
+
+
+class ResourcePreviewer
+{
+public:
+	ResourcePreviewer();
+	~ResourcePreviewer();
+
+	void preview( ResourceItem * _item );
+
+
+private:
+	class PreviewTrackContainer : public trackContainer
+	{
+		virtual QString nodeName( void ) const
+		{
+			return( "PreviewTrackContainer" );
+		}
+	} ;
+
+	PreviewTrackContainer m_previewTrackContainer;
+	instrumentTrack * m_previewTrack;
+
+} ;
+
+
+#endif