/* === S Y N F I G ========================================================= */
/*!	\file timeloop.cpp
**	\brief Image Layer_TimeLoop Layer Implementation
**
**	$Id: timeloop.cpp 373 2007-03-23 16:02:09Z dooglus $
**
**	\legal
**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**
**	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
**
** === N O T E S ===========================================================
**
** ========================================================================= */

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

#ifdef USING_PCH
#	include "pch.h"
#else
#ifdef HAVE_CONFIG_H
#	include <config.h>
#endif

#include "timeloop.h"
#include <synfig/time.h>
#include <synfig/context.h>
#include <synfig/paramdesc.h>
#include <synfig/renddesc.h>
#include <synfig/value.h>

#endif

using namespace synfig;
using namespace std;
using namespace etl;

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

/* === G L O B A L S ======================================================= */

SYNFIG_LAYER_INIT(Layer_TimeLoop);
SYNFIG_LAYER_SET_NAME(Layer_TimeLoop,"timeloop");
SYNFIG_LAYER_SET_LOCAL_NAME(Layer_TimeLoop,_("TimeLoop"));
SYNFIG_LAYER_SET_CATEGORY(Layer_TimeLoop,_("Other"));
SYNFIG_LAYER_SET_VERSION(Layer_TimeLoop,"0.1");
SYNFIG_LAYER_SET_CVS_ID(Layer_TimeLoop,"$Id: timeloop.cpp 373 2007-03-23 16:02:09Z dooglus $");

/* === P R O C E D U R E S ================================================= */

/* === M E T H O D S ======================================================= */

Layer_TimeLoop::Layer_TimeLoop()
{
	start_time=0;
	end_time=1;
}

Layer_TimeLoop::~Layer_TimeLoop()
{
}

bool
Layer_TimeLoop::set_param(const String & param, const ValueBase &value)
{
	IMPORT(start_time);
	IMPORT(end_time);
	return Layer::set_param(param,value);
}

ValueBase
Layer_TimeLoop::get_param(const String & param)const
{
	EXPORT(start_time);
	EXPORT(end_time);
	EXPORT_NAME();
	EXPORT_VERSION();

	return Layer::get_param(param);
}

Layer::Vocab
Layer_TimeLoop::get_param_vocab()const
{
	Layer::Vocab ret(Layer::get_param_vocab());

	ret.push_back(ParamDesc("start_time")
		.set_local_name(_("Start Time"))
	);

	ret.push_back(ParamDesc("end_time")
		.set_local_name(_("End Time"))
	);

	return ret;
}

void
Layer_TimeLoop::set_time(Context context, Time time)const
{
	Real diff(end_time-start_time);
	if(diff>0)
		time-=int(Real(time-start_time)/diff)*diff+start_time;
	context.set_time(time);
}

Color
Layer_TimeLoop::get_color(Context context, const Point &pos)const
{
	return context.get_color(pos);
}

bool
Layer_TimeLoop::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
{
	return context.accelerated_render(surface,quality,renddesc,cb);
}