/* === S Y N F I G ========================================================= */
/*! \file insideout.cpp
** \brief Implementation of the "Inside Out" layer
**
** $Id$
**
** \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
**
** === 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 "insideout.h"
#include <synfig/localization.h>
#include <synfig/general.h>
#include <synfig/string.h>
#include <synfig/time.h>
#include <synfig/context.h>
#include <synfig/paramdesc.h>
#include <synfig/renddesc.h>
#include <synfig/surface.h>
#include <synfig/value.h>
#include <synfig/valuenode.h>
#include <synfig/transform.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(InsideOut);
SYNFIG_LAYER_SET_NAME(InsideOut,"inside_out");
SYNFIG_LAYER_SET_LOCAL_NAME(InsideOut,N_("Inside Out"));
SYNFIG_LAYER_SET_CATEGORY(InsideOut,N_("Distortions"));
SYNFIG_LAYER_SET_VERSION(InsideOut,"0.1");
SYNFIG_LAYER_SET_CVS_ID(InsideOut,"$Id$");
/* === P R O C E D U R E S ================================================= */
/* === M E T H O D S ======================================================= */
InsideOut::InsideOut():
param_origin(ValueBase(Point(0,0)))
{
SET_INTERPOLATION_DEFAULTS();
SET_STATIC_DEFAULTS();
}
bool
InsideOut::set_param(const String & param, const ValueBase &value)
{
IMPORT_VALUE(param_origin);
return false;
}
ValueBase
InsideOut::get_param(const String & param)const
{
EXPORT_VALUE(param_origin);
EXPORT_NAME();
EXPORT_VERSION();
return ValueBase();
}
Layer::Handle
InsideOut::hit_check(Context context, const Point &p)const
{
Point origin=param_origin.get(Point());
Point pos(p-origin);
Real inv_mag=pos.inv_mag();
Point invpos(pos*inv_mag*inv_mag);
return context.hit_check(invpos+origin);
}
RendDesc
InsideOut::get_sub_renddesc_vfunc(const RendDesc &renddesc) const
{
RendDesc desc(renddesc);
desc.set_wh(512, 512);
desc.set_tl(Vector(-5.0, -5.0));
desc.set_br(Vector( 5.0, 5.0));
return desc;
}
Color
InsideOut::get_color(Context context, const Point &p)const
{
Point origin=param_origin.get(Point());
Point pos(p-origin);
Real inv_mag=pos.inv_mag();
Point invpos(pos*inv_mag*inv_mag);
return context.get_color(invpos+origin);
}
CairoColor
InsideOut::get_cairocolor(Context context, const Point &p)const
{
Point origin=param_origin.get(Point());
Point pos(p-origin);
Real inv_mag=pos.inv_mag();
Point invpos(pos*inv_mag*inv_mag);
return context.get_cairocolor(invpos+origin);
}
class lyr_std::InsideOut_Trans : public Transform
{
etl::handle<const InsideOut> layer;
public:
InsideOut_Trans(const InsideOut* x):Transform(x->get_guid()),layer(x) { }
Vector perform(const Vector& x)const
{
Point origin=layer->param_origin.get(Point());
Point pos(x-origin);
Real inv_mag=pos.inv_mag();
if(!std::isnan(inv_mag))
return (pos*(inv_mag*inv_mag)+origin);
return x;
}
Vector unperform(const Vector& x)const
{
Point origin=layer->param_origin.get(Point());
Point pos(x-origin);
Real inv_mag=pos.inv_mag();
if(!std::isnan(inv_mag))
return (pos*(inv_mag*inv_mag)+origin);
return x;
}
String get_string()const
{
return "insideout";
}
};
etl::handle<Transform>
InsideOut::get_transform()const
{
return new InsideOut_Trans(this);
}
Layer::Vocab
InsideOut::get_param_vocab()const
{
Layer::Vocab ret;
ret.push_back(ParamDesc("origin")
.set_local_name(_("Origin"))
.set_description(_("Defines where the center will be"))
);
return ret;
}