-/* === S Y N F I G ========================================================= */
-/*! \file valuenode_linear.cpp
-** \brief Template File
-**
-** $Id: valuenode_linear.cpp,v 1.1.1.1 2005/01/04 01:23:15 darco Exp $
-**
-** \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
-*/
-/* ========================================================================= */
-
-/* === H E A D E R S ======================================================= */
-
-#ifdef USING_PCH
-# include "pch.h"
-#else
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "valuenode_linear.h"
-#include "valuenode_const.h"
-#include "general.h"
-
-#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 ======================================================= */
-
-/* === P R O C E D U R E S ================================================= */
-
-/* === M E T H O D S ======================================================= */
-
-ValueNode_Linear::ValueNode_Linear(const ValueBase::Type &x):
- LinkableValueNode(x)
-{
- switch(x)
- {
- case ValueBase::TYPE_REAL:
- set_link("slope",ValueNode_Const::create(Real(1)));
- set_link("offset",ValueNode_Const::create(Real(0)));
- break;
- case ValueBase::TYPE_TIME:
- set_link("slope",ValueNode_Const::create(Time(1)));
- set_link("offset",ValueNode_Const::create(Time(0)));
- break;
- case ValueBase::TYPE_VECTOR:
- set_link("slope",ValueNode_Const::create(Vector(1.0,1.0)));
- set_link("offset",ValueNode_Const::create(Vector(0.0,0.0)));
- break;
- case ValueBase::TYPE_ANGLE:
- set_link("slope",ValueNode_Const::create(Angle::deg(90)));
- set_link("offset",ValueNode_Const::create(Angle::deg(0)));
- break;
- default:
- throw Exception::BadType(ValueBase::type_name(x));
- }
-
- DCAST_HACK_ENABLE();
-}
-
-ValueNode_Linear*
-ValueNode_Linear::create(const ValueBase &x)
-{
- return new ValueNode_Linear(x.get_type());
-}
-
-ValueNode_Linear::~ValueNode_Linear()
-{
- unlink_all();
-}
-
-ValueBase
-ValueNode_Linear::operator()(Time t)const
-{
- switch(get_type())
- {
- case ValueBase::TYPE_TIME:
- return (*m_)(t).get(Time())*t+(*b_)(t).get(Time());
- case ValueBase::TYPE_REAL:
- return (*m_)(t).get(Real())*t+(*b_)(t).get(Real());
- case ValueBase::TYPE_VECTOR:
- return (*m_)(t).get(Vector())*t+(*b_)(t).get(Vector());
- case ValueBase::TYPE_ANGLE:
- return (*m_)(t).get(Angle())*t+(*b_)(t).get(Angle());
- default:
- assert(0);
- break;
- }
- return ValueBase();
-}
-
-
-String
-ValueNode_Linear::get_name()const
-{
- return "linear";
-}
-
-String
-ValueNode_Linear::get_local_name()const
-{
- return _("Linear");
-}
-
-bool
-ValueNode_Linear::check_type(ValueBase::Type type)
-{
- return type==ValueBase::TYPE_REAL
- || type==ValueBase::TYPE_VECTOR
- || type==ValueBase::TYPE_TIME
- || type==ValueBase::TYPE_ANGLE;
-}
-
-bool
-ValueNode_Linear::set_link_vfunc(int i,ValueNode::Handle x)
-{
- assert(i==0 || i==1);
- if(i==0)
- {
- m_=x;
- signal_child_changed()(i);signal_value_changed()();
- return true;
- }
- if(i==1)
- {
- b_=x;
- signal_child_changed()(i);signal_value_changed()();
- return true;
- }
- return false;
-}
-
-ValueNode::LooseHandle
-ValueNode_Linear::get_link_vfunc(int i)const
-{
- assert(i==0 || i==1);
- if(i==0)
- return m_;
- if(i==1)
- return b_;
-
- return 0;
-}
-
-int
-ValueNode_Linear::link_count()const
-{
- return 2;
-}
-
-String
-ValueNode_Linear::link_name(int i)const
-{
- assert(i==0 || i==1);
- if(i==0)
- return "slope";
- if(i==1)
- return "offset";
- return String();
-}
-
-String
-ValueNode_Linear::link_local_name(int i)const
-{
- assert(i==0 || i==1);
- if(i==0)
- switch(get_type())
- {
- case ValueBase::TYPE_REAL:
- case ValueBase::TYPE_TIME:
- case ValueBase::TYPE_ANGLE:
- return _("Rate");
- default:
- return _("Slope");
- }
- if(i==1)
- return _("Offset");
- return String();
-}
-
-int
-ValueNode_Linear::get_link_index_from_name(const String &name)const
-{
- if(name=="slope")
- return 0;
- if(name=="offset")
- return 1;
-
- throw Exception::BadLinkName(name);
-}
-
-LinkableValueNode*
-ValueNode_Linear::create_new()const
-{
- return new ValueNode_Linear(get_type());
-}