/* === S Y N F I G ========================================================= */
/*! \file valuenode_scale.cpp
** \brief Implementation of the "Scale" valuenode conversion.
**
** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
** Copyright (c) 2007, 2008 Chris Moore
** Copyright (c) 2011 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
*/
/* ========================================================================= */
/* === H E A D E R S ======================================================= */
#ifdef USING_PCH
# include "pch.h"
#else
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <synfig/general.h>
#include <synfig/localization.h>
#include <synfig/valuenode_registry.h>
#include "valuenode_scale.h"
#include "valuenode_const.h"
#include <stdexcept>
#include <synfig/color.h>
#include <synfig/vector.h>
#include <synfig/time.h>
#include <synfig/angle.h>
#include <ETL/misc>
#endif
/* === U S I N G =========================================================== */
using namespace std;
using namespace etl;
using namespace synfig;
/* === M A C R O S ========================================================= */
/* === G L O B A L S ======================================================= */
REGISTER_VALUENODE(ValueNode_Scale, RELEASE_VERSION_0_61_06, "scale", "Scale")
/* === P R O C E D U R E S ================================================= */
/* === M E T H O D S ======================================================= */
ValueNode_Scale::ValueNode_Scale(const ValueBase &value):
LinkableValueNode(value.get_type())
{
Vocab ret(get_children_vocab());
set_children_vocab(ret);
set_link("scalar",ValueNode::Handle(ValueNode_Const::create(Real(1.0))));
Type &type(value.get_type());
if (type == type_angle)
set_link("link",ValueNode_Const::create(value.get(Angle())));
else
if (type == type_color)
set_link("link",ValueNode_Const::create(value.get(Color())));
else
if (type == type_integer)
set_link("link",ValueNode_Const::create(value.get(int())));
else
if (type == type_real)
set_link("link",ValueNode_Const::create(value.get(Real())));
else
if (type == type_time)
set_link("link",ValueNode_Const::create(value.get(Time())));
else
if (type == type_vector)
set_link("link",ValueNode_Const::create(value.get(Vector())));
else
{
assert(0);
throw runtime_error(get_local_name()+_(":Bad type ")+type.description.local_name);
}
assert(value_node);
assert(value_node->get_type()==type);
assert(get_type()==type);
}
LinkableValueNode*
ValueNode_Scale::create_new()const
{
return new ValueNode_Scale(get_type());
}
ValueNode_Scale*
ValueNode_Scale::create(const ValueBase& value)
{
return new ValueNode_Scale(value);
}
synfig::ValueNode_Scale::~ValueNode_Scale()
{
unlink_all();
}
synfig::ValueBase
synfig::ValueNode_Scale::operator()(Time t)const
{
if (getenv("SYNFIG_DEBUG_VALUENODE_OPERATORS"))
printf("%s:%d operator()\n", __FILE__, __LINE__);
if(!value_node || !scalar)
throw runtime_error(strprintf("ValueNode_Scale: %s",_("One or both of my parameters aren't set!")));
else if(get_type()==type_angle)
return (*value_node)(t).get(Angle())*(*scalar)(t).get(Real());
else if(get_type()==type_color)
{
Color ret((*value_node)(t).get(Color()));
Real s((*scalar)(t).get(Real()));
ret.set_r(ret.get_r()*s);
ret.set_g(ret.get_g()*s);
ret.set_b(ret.get_b()*s);
return ret;
}
else if(get_type()==type_integer)
return round_to_int((*value_node)(t).get(int())*(*scalar)(t).get(Real()));
else if(get_type()==type_real)
return (*value_node)(t).get(Real())*(*scalar)(t).get(Real());
else if(get_type()==type_time)
return (*value_node)(t).get(Time())*(*scalar)(t).get(Time());
else if(get_type()==type_vector)
return (*value_node)(t).get(Vector())*(*scalar)(t).get(Real());
assert(0);
return ValueBase();
}
synfig::ValueBase
synfig::ValueNode_Scale::get_inverse(Time t, const synfig::Vector &target_value) const
{
Real scalar_value((*scalar)(t).get(Real()));
if(scalar_value==0)
throw runtime_error(strprintf("ValueNode_Scale: %s",_("Attempting to get the inverse of a non invertible Valuenode")));
else
{
if (get_type() == type_real)
return target_value.mag() / scalar_value;
if (get_type() == type_angle)
return Angle::tan(target_value[1] / scalar_value ,target_value[0] / scalar_value);
return target_value / scalar_value;
}
return ValueBase();
}
synfig::ValueBase
synfig::ValueNode_Scale::get_inverse(Time t, const synfig::Angle &target_value) const
{
Real scalar_value((*scalar)(t).get(Real()));
if(scalar_value==0)
throw runtime_error(strprintf("ValueNode_Scale: %s",_("Attempting to get the inverse of a non invertible Valuenode")));
else
return target_value / scalar_value;
return ValueBase();
}
synfig::ValueBase
synfig::ValueNode_Scale::get_inverse(Time t, const synfig::Real &target_value) const
{
Real scalar_value((*scalar)(t).get(Real()));
if(scalar_value==0)
throw runtime_error(strprintf("ValueNode_Scale: %s",_("Attempting to get the inverse of a non invertible Valuenode")));
else
return target_value / scalar_value;
return ValueBase();
}
bool
synfig::ValueNode_Scale::is_invertible(Time t) const
{
Real scalar_value((*scalar)(t).get(Real()));
return (!(scalar_value==0));
}
bool
ValueNode_Scale::set_link_vfunc(int i,ValueNode::Handle value)
{
assert(i>=0 && i<link_count());
switch(i)
{
case 0: CHECK_TYPE_AND_SET_VALUE(value_node, get_type());
case 1: CHECK_TYPE_AND_SET_VALUE(scalar, type_real);
}
return false;
}
ValueNode::LooseHandle
ValueNode_Scale::get_link_vfunc(int i)const
{
assert(i>=0 && i<link_count());
if(i==0)
return value_node;
else if(i==1)
return scalar;
return 0;
}
bool
ValueNode_Scale::check_type(Type &type)
{
return
type==type_angle ||
type==type_color ||
type==type_integer ||
type==type_real ||
type==type_time ||
type==type_vector;
}
LinkableValueNode::Vocab
ValueNode_Scale::get_children_vocab_vfunc()const
{
if(children_vocab.size())
return children_vocab;
LinkableValueNode::Vocab ret;
ret.push_back(ParamDesc(ValueBase(),"link")
.set_local_name(_("Link"))
.set_description(_("The value node used to scale"))
);
ret.push_back(ParamDesc(ValueBase(),"scalar")
.set_local_name(_("Scalar"))
.set_description(_("Value that multiplies the value node"))
);
return ret;
}