/* This file is part of Ingen.
 * Copyright (C) 2007-2009 Dave Robillard <http://drobilla.net>
 *
 * Ingen 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.
 *
 * Ingen 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 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.,
 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef SETMETADATAEVENT_H
#define SETMETADATAEVENT_H

#include "raul/URI.hpp"
#include "raul/Atom.hpp"
#include "shared/ResourceImpl.hpp"
#include "QueuedEvent.hpp"

namespace Ingen {

class GraphObjectImpl;
class PatchImpl;
class CompiledPatch;


/** An event to set a piece of variable for an GraphObjectImpl.
 *
 * \ingroup engine
 */
class SetMetadataEvent : public QueuedEvent
{
public:
	SetMetadataEvent(Engine&              engine,
	                 SharedPtr<Responder> responder,
	                 SampleCount          timestamp,
	                 bool                 property,
	                 const Raul::URI&     subject,
	                 const Raul::URI&     key,
	                 const Raul::Atom&    value);

	void pre_process();
	void execute(ProcessContext& context);
	void post_process();

private:
	enum { NO_ERROR, NOT_FOUND, INTERNAL, BAD_TYPE } _error;
	enum {
		NONE,
		ENABLE,
		ENABLE_BROADCAST,
		POLYPHONY,
		POLYPHONIC
	} _special_type;

	bool                  _property;
	bool                  _success;
	Raul::URI             _subject;
	Raul::URI             _key;
	Raul::Atom            _value;
	Shared::ResourceImpl* _object;
	PatchImpl*            _patch;
	CompiledPatch*        _compiled_patch;
};


} // namespace Ingen

#endif // SETMETADATAEVENT_H