1 /* === S Y N F I G ========================================================= */
2 /*! \file insideout.cpp
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 ** === N O T E S ===========================================================
24 ** ========================================================================= */
26 /* === H E A D E R S ======================================================= */
35 #include "insideout.h"
37 #include <synfig/string.h>
38 #include <synfig/time.h>
39 #include <synfig/context.h>
40 #include <synfig/paramdesc.h>
41 #include <synfig/renddesc.h>
42 #include <synfig/surface.h>
43 #include <synfig/value.h>
44 #include <synfig/valuenode.h>
45 #include <synfig/transform.h>
49 /* === M A C R O S ========================================================= */
51 /* === G L O B A L S ======================================================= */
53 SYNFIG_LAYER_INIT(InsideOut);
54 SYNFIG_LAYER_SET_NAME(InsideOut,"inside_out");
55 SYNFIG_LAYER_SET_LOCAL_NAME(InsideOut,_("Inside Out"));
56 SYNFIG_LAYER_SET_CATEGORY(InsideOut,_("Distortions"));
57 SYNFIG_LAYER_SET_VERSION(InsideOut,"0.1");
58 SYNFIG_LAYER_SET_CVS_ID(InsideOut,"$Id$");
60 /* === P R O C E D U R E S ================================================= */
62 /* === M E T H O D S ======================================================= */
64 InsideOut::InsideOut():
70 InsideOut::set_param(const String & param, const ValueBase &value)
77 InsideOut::get_param(const String & param)const
88 InsideOut::hit_check(synfig::Context context, const synfig::Point &p)const
91 Real inv_mag=pos.inv_mag();
92 Point invpos(pos*inv_mag*inv_mag);
93 return context.hit_check(invpos+origin);
97 InsideOut::get_color(Context context, const Point &p)const
100 Real inv_mag=pos.inv_mag();
101 Point invpos(pos*inv_mag*inv_mag);
102 return context.get_color(invpos+origin);
105 class InsideOut_Trans : public Transform
107 etl::handle<const InsideOut> layer;
109 InsideOut_Trans(const InsideOut* x):layer(x) { }
111 synfig::Vector perform(const synfig::Vector& x)const
113 Point pos(x-layer->origin);
114 Real inv_mag=pos.inv_mag();
116 return (pos*(inv_mag*inv_mag)+layer->origin);
120 synfig::Vector unperform(const synfig::Vector& x)const
122 Point pos(x-layer->origin);
123 Real inv_mag=pos.inv_mag();
125 return (pos*(inv_mag*inv_mag)+layer->origin);
129 etl::handle<Transform>
130 InsideOut::get_transform()const
132 return new InsideOut_Trans(this);
136 InsideOut::get_param_vocab()const
140 ret.push_back(ParamDesc("origin")
141 .set_local_name(_("Origin"))
142 .set_description(_("Defines the where the center will be"))