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
10 ** This package is free software; you can redistribute it and/or
11 ** modify it under the terms of the GNU General Public License as
12 ** published by the Free Software Foundation; either version 2 of
13 ** the License, or (at your option) any later version.
15 ** This package is distributed in the hope that it will be useful,
16 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 ** General Public License for more details.
21 /* ========================================================================= */
23 /* === S T A R T =========================================================== */
25 #ifndef __SYNFIG_VALUENODE_SUBTRACT_H
26 #define __SYNFIG_VALUENODE_SUBTRACT_H
28 /* === H E A D E R S ======================================================= */
30 #include "valuenode.h"
32 /* === M A C R O S ========================================================= */
34 /* === C L A S S E S & S T R U C T S ======================================= */
38 struct ValueNode_Subtract : public LinkableValueNode
40 typedef etl::handle<ValueNode_Subtract> Handle;
41 typedef etl::handle<const ValueNode_Subtract> ConstHandle;
45 ValueNode_Subtract(const ValueBase &value);
49 ValueNode::RHandle ref_a;
50 ValueNode::RHandle ref_b;
51 ValueNode::RHandle scalar;
55 virtual ~ValueNode_Subtract();
57 // static Handle create(ValueBase::Type id=ValueBase::TYPE_NIL);
59 //! Sets the left-hand-side value_node
60 bool set_lhs(ValueNode::Handle a);
62 //! Gets the left-hand-side value_node
63 ValueNode::Handle get_lhs()const { return ref_a; }
65 //! Sets the right-hand-side value_node
66 bool set_rhs(ValueNode::Handle b);
68 //! Gets the right-hand-side value_node
69 ValueNode::Handle get_rhs()const { return ref_b; }
71 //! Sets the scalar value_node
72 bool set_scalar(ValueNode::Handle x);
74 //! Gets the scalar value_node
75 ValueNode::Handle get_scalar()const { return scalar; }
77 void set_scalar(Real x);
79 virtual bool set_link_vfunc(int i,ValueNode::Handle x);
81 virtual ValueNode::LooseHandle get_link_vfunc(int i)const;
83 virtual int link_count()const;
85 virtual String link_local_name(int i)const;
86 virtual String link_name(int i)const;
87 virtual int get_link_index_from_name(const String &name)const;
89 virtual ValueBase operator()(Time t)const;
91 virtual String get_name()const;
92 virtual String get_local_name()const;
94 // static bool check_type(const ValueBase::Type &type);
96 LinkableValueNode* create_new()const;
99 using synfig::LinkableValueNode::get_link_vfunc;
100 using synfig::LinkableValueNode::set_link_vfunc;
101 static bool check_type(ValueBase::Type type);
102 static ValueNode_Subtract* create(const ValueBase &value=ValueBase());
103 }; // END of class ValueNode_Subtract
105 }; // END of namespace synfig
107 /* === E N D =============================================================== */