/* === S Y N F I G ========================================================= */

/*!	\file asyncrenderer.h

**	\brief Template Header

**

**	$Id$

**

**	\legal

**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley

**	Copyright (c) 2007 Chris Moore

**

**	This package 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 package 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.

**	\endlegal

*/

/* ========================================================================= */

/* === S T A R T =========================================================== */

#ifndef __SYNFIG_ASYNCRENDERER_H

#define __SYNFIG_ASYNCRENDERER_H

/* === H E A D E R S ======================================================= */

#include <ctime></ctime>

#include <etl handle=""></etl>

#include <synfig target_scanline.h=""></synfig>

#include <synfig target_tile.h=""></synfig>

#include <synfig target_cairo.h=""></synfig>

#include <synfig target_cairo_tile.h=""></synfig>

#include <synfig surface.h=""></synfig>

#include <glibmm main.h=""></glibmm>

#include <etl ref_count=""></etl>

#include <glibmm thread.h=""></glibmm>

#include <glibmm dispatcher.h=""></glibmm>

#include "app.h"

/* === M A C R O S ========================================================= */

/* === T Y P E D E F S ===================================================== */

/* === C L A S S E S & S T R U C T S ======================================= */

namespace studio {

class AsyncRenderer : public etl::shared_object, public sigc::trackable

{

	//! Signal emitted when target has been stopped or has finished

	sigc::signal<void> signal_finished_;</void>

	//! Signal emitted when target has succeeded

	sigc::signal<void> signal_success_;</void>

	//! Seems to be unused

	std::list<sigc::connection> activity_connection_list;</sigc::connection>

	//! The target that is going to be asynchronously rendered.

	etl::handle<synfig::target> target;</synfig::target>

	//! Set to true when target render fails.

	bool error;

	//! Set to true when target render succeeded

	bool success;

	synfig::ProgressCallback *cb;

	//! Signal to be emitted when the target is requested to stop

	sigc::signal<void> signal_stop_;</void>

	Glib::Thread* render_thread;

	Glib::Dispatcher signal_done_;

	Glib::Mutex mutex;

	sigc::connection done_connection;

	clock_t start_clock;

	clock_t finish_clock;

	Glib::TimeVal start_time;

	Glib::TimeVal finish_time;

	/*

 --	** -- P A R E N T   M E M B E R S -----------------------------------------

	*/

public:

	AsyncRenderer(etl::handle<synfig::target> target,synfig::ProgressCallback *cb=0);</synfig::target>

	virtual ~AsyncRenderer();

	void start();

	void stop();

	void pause();

	void resume();

	bool has_error()const { return error; }

	bool has_success()const { return success; }

	synfig::Real get_execution_time() const { return (finish_time - start_time).as_double(); }

	synfig::Real get_execution_clock() const { return (synfig::Real)(finish_clock - start_clock)/(synfig::Real)CLOCKS_PER_SEC; }

	sigc::signal<void>& signal_finished() { return signal_finished_; }</void>

	sigc::signal<void>& signal_success() { return signal_success_; }</void>

private:

	void render_target();

	void start_();

	/*

 --	** -- C H I L D   M E M B E R S -------------------------------------------

	*/

protected:

};

}; // END of namespace studio

/* === E N D =============================================================== */

#endif