1 /* === S Y N F I G ========================================================= */
2 /*! \file valuenode_subtract.h
3 ** \brief Template Header
8 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
9 ** Copyright (c) 2007 Chris Moore
11 ** This package is free software; you can redistribute it and/or
12 ** modify it under the terms of the GNU General Public License as
13 ** published by the Free Software Foundation; either version 2 of
14 ** the License, or (at your option) any later version.
16 ** This package is distributed in the hope that it will be useful,
17 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 ** General Public License for more details.
22 /* ========================================================================= */
24 /* === S T A R T =========================================================== */
26 #ifndef __SYNFIG_VALUENODE_SUBTRACT_H
27 #define __SYNFIG_VALUENODE_SUBTRACT_H
29 /* === H E A D E R S ======================================================= */
31 #include "valuenode.h"
33 /* === M A C R O S ========================================================= */
35 /* === C L A S S E S & S T R U C T S ======================================= */
39 struct ValueNode_Subtract : public LinkableValueNode
41 typedef etl::handle<ValueNode_Subtract> Handle;
42 typedef etl::handle<const ValueNode_Subtract> ConstHandle;
46 ValueNode_Subtract(const ValueBase &value);
50 ValueNode::RHandle ref_a;
51 ValueNode::RHandle ref_b;
52 ValueNode::RHandle scalar;
56 virtual ~ValueNode_Subtract();
58 // static Handle create(ValueBase::Type id=ValueBase::TYPE_NIL);
60 //! Sets the left-hand-side value_node
61 bool set_lhs(ValueNode::Handle a);
63 //! Gets the left-hand-side value_node
64 ValueNode::Handle get_lhs()const { return ref_a; }
66 //! Sets the right-hand-side value_node
67 bool set_rhs(ValueNode::Handle b);
69 //! Gets the right-hand-side value_node
70 ValueNode::Handle get_rhs()const { return ref_b; }
72 //! Sets the scalar value_node
73 bool set_scalar(ValueNode::Handle x);
75 //! Gets the scalar value_node
76 ValueNode::Handle get_scalar()const { return scalar; }
78 void set_scalar(Real x);
80 virtual bool set_link_vfunc(int i,ValueNode::Handle x);
82 virtual ValueNode::LooseHandle get_link_vfunc(int i)const;
84 virtual int link_count()const;
86 virtual String link_local_name(int i)const;
87 virtual String link_name(int i)const;
88 virtual int get_link_index_from_name(const String &name)const;
90 virtual ValueBase operator()(Time t)const;
92 virtual String get_name()const;
93 virtual String get_local_name()const;
95 // static bool check_type(const ValueBase::Type &type);
97 LinkableValueNode* create_new()const;
100 using synfig::LinkableValueNode::get_link_vfunc;
101 using synfig::LinkableValueNode::set_link_vfunc;
102 static bool check_type(ValueBase::Type type);
103 static ValueNode_Subtract* create(const ValueBase &value=ValueBase());
104 }; // END of class ValueNode_Subtract
106 }; // END of namespace synfig
108 /* === E N D =============================================================== */