Remove ancient trunk folder from svn repository

[synfig.git] / synfig-core / src / synfig / valuenode_compare.cpp

diff --git a/synfig-core/src/synfig/valuenode_compare.cpp b/synfig-core/src/synfig/valuenode_compare.cpp
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+/* === S Y N F I G ========================================================= */
+/*!    \file valuenode_compare.cpp
+**     \brief Implementation of the "Compare" valuenode conversion.
+**
+**     $Id$
+**
+**     \legal
+**     Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**     Copyright (c) 2007, 2008 Chris Moore
+**     Copyright (c) 2009 Nikita Kitaev
+**
+**     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_compare.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_Compare::ValueNode_Compare(const ValueBase &x):
+       LinkableValueNode(x.get_type())
+{
+       bool value(x.get(bool()));
+
+       set_link("lhs",          ValueNode_Const::create(Real(0)));
+       set_link("rhs",          ValueNode_Const::create(Real(0)));
+       set_link("greater",      ValueNode_Const::create(bool(false)));
+       if (value)
+               set_link("equal",ValueNode_Const::create(bool(true)));
+       else
+               set_link("equal",ValueNode_Const::create(bool(false)));
+       set_link("less",         ValueNode_Const::create(bool(false)));
+}
+
+ValueNode_Compare*
+ValueNode_Compare::create(const ValueBase &x)
+{
+       return new ValueNode_Compare(x);
+}
+
+LinkableValueNode*
+ValueNode_Compare::create_new()const
+{
+       return new ValueNode_Compare(get_type());
+}
+
+ValueNode_Compare::~ValueNode_Compare()
+{
+       unlink_all();
+}
+
+bool
+ValueNode_Compare::set_link_vfunc(int i,ValueNode::Handle value)
+{
+       assert(i>=0 && i<link_count());
+
+       switch(i)
+       {
+       case 0: CHECK_TYPE_AND_SET_VALUE(lhs_,      ValueBase::TYPE_REAL);
+       case 1: CHECK_TYPE_AND_SET_VALUE(rhs_,      ValueBase::TYPE_REAL);
+       case 2: CHECK_TYPE_AND_SET_VALUE(greater_,  ValueBase::TYPE_BOOL);
+       case 3: CHECK_TYPE_AND_SET_VALUE(equal_,    ValueBase::TYPE_BOOL);
+       case 4: CHECK_TYPE_AND_SET_VALUE(less_,     ValueBase::TYPE_BOOL);
+       }
+       return false;
+}
+
+ValueNode::LooseHandle
+ValueNode_Compare::get_link_vfunc(int i)const
+{
+       assert(i>=0 && i<link_count());
+
+       if(i==0) return lhs_;
+       if(i==1) return rhs_;
+       if(i==2) return greater_;
+       if(i==3) return equal_;
+       if(i==4) return less_;
+       return 0;
+}
+
+int
+ValueNode_Compare::link_count()const
+{
+       return 5;
+}
+
+String
+ValueNode_Compare::link_local_name(int i)const
+{
+       assert(i>=0 && i<link_count());
+
+       if(i==0) return _("LHS");
+       if(i==1) return _("RHS");
+       if(i==2) return _("Greater Than");
+       if(i==3) return _("Equal to");
+       if(i==4) return _("Less Than");
+       return String();
+}
+
+String
+ValueNode_Compare::link_name(int i)const
+{
+       assert(i>=0 && i<link_count());
+
+       if(i==0) return "lhs";
+       if(i==1) return "rhs";
+       if(i==2) return "greater";
+       if(i==3) return "equal";
+       if(i==4) return "less";
+       return String();
+}
+
+int
+ValueNode_Compare::get_link_index_from_name(const String &name)const
+{
+       if(name=="lhs")     return 0;
+       if(name=="rhs")     return 1;
+       if(name=="greater") return 2;
+       if(name=="equal")   return 3;
+       if(name=="less")    return 4;
+
+       throw Exception::BadLinkName(name);
+}
+
+ValueBase
+ValueNode_Compare::operator()(Time t)const
+{
+       if (getenv("SYNFIG_DEBUG_VALUENODE_OPERATORS"))
+               printf("%s:%d operator()\n", __FILE__, __LINE__);
+
+       Real lhs      = (*lhs_)     (t).get(Real());
+       Real rhs      = (*rhs_)     (t).get(Real());
+       Real greater  = (*greater_) (t).get(bool());
+       Real equal    = (*equal_)   (t).get(bool());
+       Real less     = (*less_)    (t).get(bool());
+
+       if (greater && lhs > rhs)
+               return true;
+       if (equal && lhs == rhs)
+               return true;
+       if (less && lhs < rhs)
+               return true;
+
+       return false;
+}
+
+String
+ValueNode_Compare::get_name()const
+{
+       return "compare";
+}
+
+String
+ValueNode_Compare::get_local_name()const
+{
+       return _("Compare");
+}
+
+bool
+ValueNode_Compare::check_type(ValueBase::Type type)
+{
+       return type==ValueBase::TYPE_BOOL;
+}