+/* === S Y N F I G ========================================================= */
+/*! \file valuenode_twotone.cpp
+** \brief Template File
+**
+** $Id$
+**
+** \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_twotone.h"
+#include "valuenode_const.h"
+#include <stdexcept>
+#include "color.h"
+#include "gradient.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 ======================================================= */
+
+synfig::ValueNode_TwoTone::ValueNode_TwoTone():LinkableValueNode(synfig::ValueBase::TYPE_GRADIENT)
+{
+ set_link("color1",ValueNode_Const::create(Color::black()));
+ set_link("color2",ValueNode_Const::create(Color::white()));
+ DCAST_HACK_ENABLE();
+}
+
+LinkableValueNode*
+ValueNode_TwoTone::create_new()const
+{
+ return new ValueNode_TwoTone();
+}
+
+ValueNode_TwoTone*
+ValueNode_TwoTone::create(const ValueBase& x)
+{
+ ValueBase::Type id(x.get_type());
+ if(id!=ValueBase::TYPE_GRADIENT)
+ {
+ assert(0);
+ throw runtime_error("synfig::ValueNode_TwoTone:Bad type "+ValueBase::type_name(id));
+ }
+
+ ValueNode_TwoTone* value_node=new ValueNode_TwoTone();
+
+ assert(value_node->get_type()==id);
+
+ return value_node;
+}
+
+synfig::ValueNode_TwoTone::~ValueNode_TwoTone()
+{
+ unlink_all();
+}
+
+bool
+synfig::ValueNode_TwoTone::set_lhs(ValueNode::Handle a)
+{
+ if(a->get_type()!=ValueBase::TYPE_COLOR)
+ return false;
+
+ ref_a=a;
+
+ return true;
+}
+
+bool
+synfig::ValueNode_TwoTone::set_rhs(ValueNode::Handle b)
+{
+ if(b->get_type()!=ValueBase::TYPE_COLOR)
+ return false;
+ ref_b=b;
+ return true;
+}
+
+synfig::ValueBase
+synfig::ValueNode_TwoTone::operator()(Time t)const
+{
+ return Gradient((*ref_a)(t).get(Color()),(*ref_b)(t).get(Color()));
+}
+
+bool
+ValueNode_TwoTone::set_link_vfunc(int i,ValueNode::Handle x)
+{
+ assert(i>=0 && i<3);
+ switch(i)
+ {
+ case 0:
+ if(set_lhs(x)) { signal_child_changed()(i);signal_value_changed()(); return true; }
+ else { return false; }
+ case 1:
+ if(set_rhs(x)) { signal_child_changed()(i);signal_value_changed()(); return true; }
+ else { return false; }
+ }
+
+ return false;
+}
+
+ValueNode::LooseHandle
+ValueNode_TwoTone::get_link_vfunc(int i)const
+{
+ assert(i>=0 && i<3);
+ switch(i)
+ {
+ case 0:
+ return ref_a;
+ case 1:
+ return ref_b;
+ }
+ return 0;
+}
+
+int
+ValueNode_TwoTone::link_count()const
+{
+ return 2;
+}
+
+String
+ValueNode_TwoTone::link_local_name(int i)const
+{
+ assert(i>=0 && i<2);
+ switch(i)
+ {
+ case 0:
+ return _("Color1");
+ case 1:
+ return _("Color2");
+ default:
+ return String();
+ }
+}
+
+String
+ValueNode_TwoTone::link_name(int i)const
+{
+ assert(i>=0 && i<2);
+ switch(i)
+ {
+ case 0:
+ return "color1";
+ case 1:
+ return "color2";
+ default:
+ return String();
+ }
+}
+
+int
+ValueNode_TwoTone::get_link_index_from_name(const String &name)const
+{
+ if(name=="color1")
+ return 0;
+ if(name=="color2")
+ return 1;
+ throw Exception::BadLinkName(name);
+}
+
+String
+ValueNode_TwoTone::get_name()const
+{
+ return "twotone";
+}
+
+String
+ValueNode_TwoTone::get_local_name()const
+{
+ return _("Two-Tone");
+}
+
+bool
+ValueNode_TwoTone::check_type(ValueBase::Type type)
+{
+ return type==ValueBase::TYPE_GRADIENT;
+}