--- /dev/null
+/* === 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());
+}