1 /* === S Y N F I G ========================================================= */
2 /*! \file valuenode_step.h
3 ** \brief Header file for implementation of the "Step" valuenode conversion.
8 ** Copyright (c) 2008 Chris Moore
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_INTERPOLATION_STEP_H
26 #define __SYNFIG_VALUENODE_INTERPOLATION_STEP_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 class ValueNode_Step : public LinkableValueNode
40 ValueNode::RHandle link_;
41 ValueNode::RHandle duration_;
42 ValueNode::RHandle start_time_;
43 ValueNode::RHandle intersection_;
45 ValueNode_Step(const ValueBase &value);
49 typedef etl::handle<ValueNode_Step> Handle;
50 typedef etl::handle<const ValueNode_Step> ConstHandle;
53 virtual ValueBase operator()(Time t)const;
55 virtual ~ValueNode_Step();
57 virtual String get_name()const;
58 virtual String get_local_name()const;
61 virtual ValueNode::LooseHandle get_link_vfunc(int i)const;
62 virtual int link_count()const;
63 virtual String link_name(int i)const;
65 virtual String link_local_name(int i)const;
66 virtual int get_link_index_from_name(const String &name)const;
69 LinkableValueNode* create_new()const;
70 virtual bool set_link_vfunc(int i,ValueNode::Handle x);
73 using synfig::LinkableValueNode::get_link_vfunc;
75 using synfig::LinkableValueNode::set_link_vfunc;
76 static bool check_type(ValueBase::Type type);
77 static ValueNode_Step* create(const ValueBase &x);
78 }; // END of class ValueNode_Step
80 }; // END of namespace synfig
82 /* === E N D =============================================================== */