--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file valuenode_atan2.cpp
+** \brief Implementation of the "aTan2" valuenode conversion.
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+** Copyright (c) 2007, 2008 Chris Moore
+**
+** 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_atan2.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_Atan2::ValueNode_Atan2(const ValueBase &value):
+ LinkableValueNode(value.get_type())
+{
+ switch(value.get_type())
+ {
+ case ValueBase::TYPE_ANGLE:
+ set_link("x",ValueNode_Const::create(Angle::cos(value.get(Angle())).get()));
+ set_link("y",ValueNode_Const::create(Angle::sin(value.get(Angle())).get()));
+ break;
+ default:
+ throw Exception::BadType(ValueBase::type_local_name(value.get_type()));
+ }
+
+ DCAST_HACK_ENABLE();
+}
+
+LinkableValueNode*
+ValueNode_Atan2::create_new()const
+{
+ return new ValueNode_Atan2(get_type());
+}
+
+ValueNode_Atan2*
+ValueNode_Atan2::create(const ValueBase &x)
+{
+ return new ValueNode_Atan2(x);
+}
+
+ValueNode_Atan2::~ValueNode_Atan2()
+{
+ unlink_all();
+}
+
+ValueBase
+ValueNode_Atan2::operator()(Time t)const
+{
+ if (getenv("SYNFIG_DEBUG_VALUENODE_OPERATORS"))
+ printf("%s:%d operator()\n", __FILE__, __LINE__);
+
+ return Angle::tan((*y_)(t).get(Real()),
+ (*x_)(t).get(Real()));
+}
+
+
+String
+ValueNode_Atan2::get_name()const
+{
+ return "atan2";
+}
+
+String
+ValueNode_Atan2::get_local_name()const
+{
+ return _("aTan2");
+}
+
+bool
+ValueNode_Atan2::check_type(ValueBase::Type type)
+{
+ return type==ValueBase::TYPE_ANGLE;
+}
+
+bool
+ValueNode_Atan2::set_link_vfunc(int i,ValueNode::Handle value)
+{
+ assert(i>=0 && i<link_count());
+
+ switch(i)
+ {
+ case 0: CHECK_TYPE_AND_SET_VALUE(x_, ValueBase::TYPE_REAL);
+ case 1: CHECK_TYPE_AND_SET_VALUE(y_, ValueBase::TYPE_REAL);
+ }
+ return false;
+}
+
+ValueNode::LooseHandle
+ValueNode_Atan2::get_link_vfunc(int i)const
+{
+ assert(i>=0 && i<link_count());
+
+ if(i==0)
+ return x_;
+ if(i==1)
+ return y_;
+
+ return 0;
+}
+
+int
+ValueNode_Atan2::link_count()const
+{
+ return 2;
+}
+
+String
+ValueNode_Atan2::link_name(int i)const
+{
+ assert(i>=0 && i<link_count());
+
+ if(i==0)
+ return "x";
+ if(i==1)
+ return "y";
+ return String();
+}
+
+String
+ValueNode_Atan2::link_local_name(int i)const
+{
+ assert(i>=0 && i<link_count());
+
+ if(i==0)
+ return _("X");
+ if(i==1)
+ return _("Y");
+ return String();
+}
+
+int
+ValueNode_Atan2::get_link_index_from_name(const String &name)const
+{
+ if(name=="x")
+ return 0;
+ if(name=="y")
+ return 1;
+
+ throw Exception::BadLinkName(name);
+}