1 /* === S Y N F I G ========================================================= */
2 /*! \file valuenode_gradientcolor.cpp
3 ** \brief Implementation of the "Gradient Color" 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_gradientcolor.h"
34 #include "valuenode_const.h"
40 /* === U S I N G =========================================================== */
44 using namespace synfig;
46 /* === M A C R O S ========================================================= */
48 /* === G L O B A L S ======================================================= */
50 /* === P R O C E D U R E S ================================================= */
52 /* === M E T H O D S ======================================================= */
54 ValueNode_GradientColor::ValueNode_GradientColor(const ValueBase &value):
55 LinkableValueNode(value.get_type())
57 Vocab ret(get_children_vocab());
58 set_children_vocab(ret);
59 switch(value.get_type())
61 case ValueBase::TYPE_COLOR:
62 set_link("gradient", ValueNode_Const::create(Gradient(value.get(Color()),value.get(Color()))));
63 set_link("index", ValueNode_Const::create(Real(0.5)));
64 set_link("loop", ValueNode_Const::create(bool(false)));
67 throw Exception::BadType(ValueBase::type_local_name(value.get_type()));
72 ValueNode_GradientColor::create_new()const
74 return new ValueNode_GradientColor(get_type());
77 ValueNode_GradientColor*
78 ValueNode_GradientColor::create(const ValueBase &x)
80 return new ValueNode_GradientColor(x);
83 ValueNode_GradientColor::~ValueNode_GradientColor()
89 ValueNode_GradientColor::operator()(Time t)const
91 if (getenv("SYNFIG_DEBUG_VALUENODE_OPERATORS"))
92 printf("%s:%d operator()\n", __FILE__, __LINE__);
94 Real index((*index_)(t).get(Real()));
95 bool loop((*loop_)(t).get(bool()));
96 if (loop) index -= floor(index);
97 return (*gradient_)(t).get(Gradient())(index);
102 ValueNode_GradientColor::set_link_vfunc(int i,ValueNode::Handle value)
104 assert(i>=0 && i<link_count());
108 case 0: CHECK_TYPE_AND_SET_VALUE(gradient_, ValueBase::TYPE_GRADIENT);
109 case 1: CHECK_TYPE_AND_SET_VALUE(index_, ValueBase::TYPE_REAL);
110 case 2: CHECK_TYPE_AND_SET_VALUE(loop_, ValueBase::TYPE_BOOL);
115 ValueNode::LooseHandle
116 ValueNode_GradientColor::get_link_vfunc(int i)const
118 assert(i>=0 && i<link_count());
122 case 0: return gradient_;
123 case 1: return index_;
124 case 2: return loop_;
131 ValueNode_GradientColor::get_name()const
133 return "gradientcolor";
137 ValueNode_GradientColor::get_local_name()const
139 return _("Gradient Color");
143 ValueNode_GradientColor::check_type(ValueBase::Type type)
145 return type==ValueBase::TYPE_COLOR;
148 LinkableValueNode::Vocab
149 ValueNode_GradientColor::get_children_vocab_vfunc()const
151 if(children_vocab.size())
152 return children_vocab;
154 LinkableValueNode::Vocab ret;
156 ret.push_back(ParamDesc(ValueBase(),"gradient")
157 .set_local_name(_("Gradient"))
158 .set_description(_("The gradient where the color is picked from"))
161 ret.push_back(ParamDesc(ValueBase(),"index")
162 .set_local_name(_("Index"))
163 .set_description(_("The position of the color at the gradient (0,1]"))
166 ret.push_back(ParamDesc(ValueBase(),"loop")
167 .set_local_name(_("Loop"))
168 .set_description(_("When checked, the index would loop"))