/* === S Y N F I G ========================================================= */
/*! \file stroboscope.cpp
** \brief Implementation of the "Stroboscope" layer
**
** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
** Copyright (c) 2007, 2008 Chris Moore
** Copyright (c) 2009 Ray Frederikson
** Copyright (c) 2012-2013 Carlos López
**
** 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 "stroboscope.h"
#include <synfig/localization.h>
#include <synfig/general.h>
#include <synfig/valuenode.h>
#include <synfig/valuenodes/valuenode_const.h>
#include <synfig/valuenodes/valuenode_subtract.h>
#include <synfig/time.h>
#include <synfig/context.h>
#include <synfig/paramdesc.h>
#include <synfig/renddesc.h>
#include <synfig/value.h>
#include <synfig/canvas.h>
#endif
using namespace std;
using namespace etl;
using namespace synfig;
using namespace modules;
using namespace lyr_std;
/* === M A C R O S ========================================================= */
/* === G L O B A L S ======================================================= */
SYNFIG_LAYER_INIT(Layer_Stroboscope);
SYNFIG_LAYER_SET_NAME(Layer_Stroboscope,"stroboscope");
SYNFIG_LAYER_SET_LOCAL_NAME(Layer_Stroboscope,N_("Stroboscope"));
SYNFIG_LAYER_SET_CATEGORY(Layer_Stroboscope,N_("Time"));
SYNFIG_LAYER_SET_VERSION(Layer_Stroboscope,"0.1");
SYNFIG_LAYER_SET_CVS_ID(Layer_Stroboscope,"$Id$");
/* === P R O C E D U R E S ================================================= */
/* === M E T H O D S ======================================================= */
Layer_Stroboscope::Layer_Stroboscope()
{
param_frequency=ValueBase(float(2.0));
SET_INTERPOLATION_DEFAULTS();
SET_STATIC_DEFAULTS();
}
Layer_Stroboscope::~Layer_Stroboscope()
{
}
bool
Layer_Stroboscope::set_param(const String & param, const ValueBase &value)
{
IMPORT_VALUE(param_frequency);
return Layer::set_param(param,value);
}
ValueBase
Layer_Stroboscope::get_param(const String & param)const
{
EXPORT_VALUE(param_frequency);
EXPORT_NAME();
EXPORT_VERSION();
return Layer::get_param(param);
}
Layer::Vocab
Layer_Stroboscope::get_param_vocab()const
{
Layer::Vocab ret(Layer::get_param_vocab());
ret.push_back(ParamDesc("frequency")
.set_local_name(_("Frequency"))
.set_description(_("Frequency of the Strobe in times per second"))
);
return ret;
}
void
Layer_Stroboscope::set_time_vfunc(IndependentContext context, Time t)const
{
float frequency=param_frequency.get(float());
Time ret_time=Time::begin();
if(frequency > 0.0)
ret_time = Time(1.0)/frequency*floor(t*frequency);
context.set_time(ret_time);
}