1 /* === S Y N F I G ========================================================= */
2 /*! \file valuenode_sine.cpp
3 ** \brief Implementation of the "Sine" valuenode conversion.
8 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
9 ** Copyright (c) 2007, 2008 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 /* === H E A D E R S ======================================================= */
33 #include "valuenode_sine.h"
34 #include "valuenode_const.h"
39 /* === U S I N G =========================================================== */
43 using namespace synfig;
45 /* === M A C R O S ========================================================= */
47 /* === G L O B A L S ======================================================= */
49 /* === P R O C E D U R E S ================================================= */
51 /* === M E T H O D S ======================================================= */
53 ValueNode_Sine::ValueNode_Sine(const ValueBase &value):
54 LinkableValueNode(value.get_type())
56 Vocab ret(get_children_vocab());
57 set_children_vocab(ret);
58 switch(value.get_type())
60 case ValueBase::TYPE_REAL:
61 set_link("angle",ValueNode_Const::create(Angle::deg(90)));
62 set_link("amp",ValueNode_Const::create(value.get(Real())));
65 throw Exception::BadType(ValueBase::type_local_name(value.get_type()));
70 ValueNode_Sine::create_new()const
72 return new ValueNode_Sine(get_type());
76 ValueNode_Sine::create(const ValueBase &x)
78 return new ValueNode_Sine(x);
81 ValueNode_Sine::~ValueNode_Sine()
87 ValueNode_Sine::operator()(Time t)const
89 if (getenv("SYNFIG_DEBUG_VALUENODE_OPERATORS"))
90 printf("%s:%d operator()\n", __FILE__, __LINE__);
94 (*angle_)(t).get(Angle())
95 ).get() * (*amp_)(t).get(Real())
101 ValueNode_Sine::get_name()const
107 ValueNode_Sine::get_local_name()const
113 ValueNode_Sine::check_type(ValueBase::Type type)
115 return type==ValueBase::TYPE_REAL;
119 ValueNode_Sine::set_link_vfunc(int i,ValueNode::Handle value)
121 assert(i>=0 && i<link_count());
125 case 0: CHECK_TYPE_AND_SET_VALUE(angle_, ValueBase::TYPE_ANGLE);
126 case 1: CHECK_TYPE_AND_SET_VALUE(amp_, ValueBase::TYPE_REAL);
131 ValueNode::LooseHandle
132 ValueNode_Sine::get_link_vfunc(int i)const
134 assert(i>=0 && i<link_count());
144 LinkableValueNode::Vocab
145 ValueNode_Sine::get_children_vocab_vfunc()const
147 if(children_vocab.size())
148 return children_vocab;
150 LinkableValueNode::Vocab ret;
152 ret.push_back(ParamDesc(ValueBase(),"angle")
153 .set_local_name(_("Angle"))
154 .set_description(_("The angle where the sine is calculated from"))
157 ret.push_back(ParamDesc(ValueBase(),"amp")
158 .set_local_name(_("Amplitude"))
159 .set_description(_("The value that multiplies the resulting sine"))