--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file valuenode_scale.cpp
+** \brief Template File
+**
+** $Id: valuenode_scale.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 "general.h"
+#include "valuenode_scale.h"
+#include "valuenode_const.h"
+#include <stdexcept>
+#include <cassert>
+#include "color.h"
+#include "vector.h"
+#include "time.h"
+#include "angle.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_Scale::ValueNode_Scale():LinkableValueNode(synfig::ValueBase::TYPE_NIL)
+{
+ set_scalar(1.0);
+}
+
+ValueNode_Scale*
+ValueNode_Scale::create(const ValueBase& x)
+{
+ ValueNode_Scale* value_node;
+ switch(x.get_type())
+ {
+ case ValueBase::TYPE_VECTOR:
+ case ValueBase::TYPE_REAL:
+ case ValueBase::TYPE_TIME:
+ case ValueBase::TYPE_INTEGER:
+ case ValueBase::TYPE_ANGLE:
+ case ValueBase::TYPE_COLOR:
+ value_node=new ValueNode_Scale();
+ if(!value_node->set_value_node(ValueNode_Const::create(x)))
+ return 0;
+ assert(value_node->get_value_node()->get_type()==x.get_type());
+ break;
+ default:
+ assert(0);
+ throw runtime_error("synfig::ValueNode_Scale:Bad type "+ValueBase::type_name(x.get_type()));
+ }
+ assert(value_node);
+ assert(value_node->get_type()==x.get_type());
+
+ return value_node;
+}
+
+LinkableValueNode*
+ValueNode_Scale::create_new()const
+{
+ return new ValueNode_Scale();
+}
+
+synfig::ValueNode_Scale::~ValueNode_Scale()
+{
+ unlink_all();
+}
+
+void
+ValueNode_Scale::set_scalar(Real x)
+{
+ set_link("scalar",ValueNode::Handle(ValueNode_Const::create(x)));
+}
+
+bool
+ValueNode_Scale::set_scalar(const ValueNode::Handle &x)
+{
+ if(!x
+ || x->get_type()!=ValueBase::TYPE_REAL
+ && !PlaceholderValueNode::Handle::cast_dynamic(x)
+ )
+ return false;
+ scalar=x;
+ return true;
+}
+
+ValueNode::Handle
+ValueNode_Scale::get_scalar()const
+{
+ return scalar;
+}
+
+bool
+ValueNode_Scale::set_value_node(const ValueNode::Handle &x)
+{
+ if(!x
+ || ( get_type()==ValueBase::TYPE_NIL
+ && !check_type(x->get_type()) )
+ || ( get_type()!=ValueBase::TYPE_NIL
+ && x->get_type()!=get_type() ) &&
+ !PlaceholderValueNode::Handle::cast_dynamic(x)
+ )
+ return false;
+
+ assert(!(PlaceholderValueNode::Handle::cast_dynamic(x) && !get_type()));
+
+ value_node=x;
+
+ if(!get_type())
+ set_type(x->get_type());
+
+ return true;
+}
+
+ValueNode::Handle
+ValueNode_Scale::get_value_node()const
+{
+ return value_node;
+}
+
+
+synfig::ValueBase
+synfig::ValueNode_Scale::operator()(Time t)const
+{
+ if(!value_node || !scalar)
+ throw runtime_error(strprintf("ValueNode_Scale: %s",_("One or both of my parameters aren't set!")));
+ else
+ if(get_type()==ValueBase::TYPE_VECTOR)
+ return (*value_node)(t).get(Vector())*(*scalar)(t).get(Real());
+ else
+ if(get_type()==ValueBase::TYPE_REAL)
+ return (*value_node)(t).get(Real())*(*scalar)(t).get(Real());
+ else
+ if(get_type()==ValueBase::TYPE_TIME)
+ return (*value_node)(t).get(Time())*(*scalar)(t).get(Time());
+ else
+ if(get_type()==ValueBase::TYPE_INTEGER)
+ return (*value_node)(t).get(int())*(*scalar)(t).get(Real());
+ else
+ if(get_type()==ValueBase::TYPE_ANGLE)
+ return (*value_node)(t).get(Angle())*(*scalar)(t).get(Real());
+ else
+ if(get_type()==ValueBase::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_r()*s);
+ ret.set_b(ret.get_r()*s);
+ return ret;
+ }
+
+ assert(0);
+ return ValueBase();
+}
+
+
+bool
+ValueNode_Scale::set_link_vfunc(int i,ValueNode::Handle x)
+{
+ if(!(i==0 || i==1))
+ return false;
+
+ if(i==0 && !set_value_node(x))
+ return false;
+ else
+ if(i==1 && !set_scalar(x))
+ return false;
+
+ signal_child_changed()(i);signal_value_changed()();
+
+ return true;
+}
+
+ValueNode::LooseHandle
+ValueNode_Scale::get_link_vfunc(int i)const
+{
+ assert(i==0 || i==1);
+ if(i==0)
+ return value_node;
+ else if(i==1)
+ return scalar;
+ return 0;
+}
+
+int
+ValueNode_Scale::link_count()const
+{
+ return 2;
+}
+
+String
+ValueNode_Scale::link_local_name(int i)const
+{
+ assert(i==0 || i==1);
+ if(i==0)
+ return _("Link");
+ else if(i==1)
+ return _("Scalar");
+ return String();
+}
+
+String
+ValueNode_Scale::link_name(int i)const
+{
+ assert(i==0 || i==1);
+ if(i==0)
+ return "link";
+ else if(i==1)
+ return "scalar";
+ return String();
+}
+
+int
+ValueNode_Scale::get_link_index_from_name(const String &name)const
+{
+ if(name=="link")
+ return 0;
+ if(name=="scalar")
+ return 1;
+
+ throw Exception::BadLinkName(name);
+}
+
+String
+ValueNode_Scale::get_name()const
+{
+ return "scale";
+}
+
+String
+ValueNode_Scale::get_local_name()const
+{
+ return _("Scale");
+}
+
+bool
+ValueNode_Scale::check_type(ValueBase::Type type)
+{
+ return
+ type==ValueBase::TYPE_VECTOR ||
+ type==ValueBase::TYPE_REAL ||
+ type==ValueBase::TYPE_INTEGER ||
+ type==ValueBase::TYPE_COLOR ||
+ type==ValueBase::TYPE_ANGLE;
+}
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