1 /* === S Y N F I G ========================================================= */
3 ** \brief Header file for implementation of the "Twirl" layer
8 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
9 ** Copyright (c) 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 /* === S T A R T =========================================================== */
26 #ifndef __SYNFIG_TWIRL_H
27 #define __SYNFIG_TWIRL_H
29 /* === H E A D E R S ======================================================= */
31 #include <synfig/layer_composite.h>
32 #include <synfig/color.h>
33 #include <synfig/vector.h>
34 #include <synfig/value.h>
35 #include <synfig/gradient.h>
36 #include <synfig/angle.h>
38 /* === M A C R O S ========================================================= */
40 /* === T Y P E D E F S ===================================================== */
42 /* === C L A S S E S & S T R U C T S ======================================= */
45 class Twirl : public synfig::Layer_Composite
47 SYNFIG_LAYER_MODULE_EXT
48 friend class Twirl_Trans;
56 synfig::Angle rotations;
62 synfig::Point distort(const synfig::Point &pos, bool reverse=false)const;
67 virtual bool set_param(const synfig::String & param, const synfig::ValueBase &value);
69 virtual synfig::ValueBase get_param(const synfig::String & param)const;
71 virtual synfig::Color get_color(synfig::Context context, const synfig::Point &pos)const;
73 //virtual bool accelerated_render(synfig::Context context,synfig::Surface *surface,int quality, const synfig::RendDesc &renddesc, synfig::ProgressCallback *cb)const;
75 synfig::Layer::Handle hit_check(synfig::Context context, const synfig::Point &point)const;
77 virtual Vocab get_param_vocab()const;
78 virtual etl::handle<synfig::Transform> get_transform()const;
79 virtual bool reads_context()const { return true; }
80 }; // END of class Twirl
82 /* === E N D =============================================================== */