1 /* === S Y N F I G ========================================================= */
3 ** \brief Template Header
6 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
8 ** This package is free software; you can redistribute it and/or
9 ** modify it under the terms of the GNU General Public License as
10 ** published by the Free Software Foundation; either version 2 of
11 ** the License, or (at your option) any later version.
13 ** This package is distributed in the hope that it will be useful,
14 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
15 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 ** General Public License for more details.
19 ** === N O T E S ===========================================================
21 ** ========================================================================= */
23 /* === S T A R T =========================================================== */
25 #ifndef __SYNFIG_WARP_H
26 #define __SYNFIG_WARP_H
28 /* === H E A D E R S ======================================================= */
30 #include <synfig/vector.h>
31 #include <synfig/angle.h>
32 #include <synfig/layer.h>
33 #include <synfig/rect.h>
35 /* === M A C R O S ========================================================= */
37 /* === T Y P E D E F S ===================================================== */
39 /* === C L A S S E S & S T R U C T S ======================================= */
41 using namespace synfig;
46 class Warp : public Layer
48 SYNFIG_LAYER_MODULE_EXT
49 friend class Warp_Trans;
52 Point src_tl,src_br,dest_tl,dest_tr,dest_bl,dest_br;
56 Real cache_a,cache_b,cache_c,cache_d,cache_e,cache_f,cache_i,cache_j;
59 Real inv_matrix[3][3];
61 Point transform_forward(const Point& p)const;
62 Point transform_backward(const Point& p)const;
64 Real transform_forward_z(const Point& p)const;
65 Real transform_backward_z(const Point& p)const;
75 virtual synfig::Rect get_full_bounding_rect(synfig::Context context)const;
76 virtual synfig::Rect get_bounding_rect()const;
78 virtual bool set_param(const synfig::String & param, const synfig::ValueBase &value);
79 virtual ValueBase get_param(const synfig::String & param)const;
80 virtual Color get_color(Context context, const Point &pos)const;
81 virtual bool accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const;
82 synfig::Layer::Handle hit_check(synfig::Context context, const synfig::Point &point)const;
83 virtual Vocab get_param_vocab()const;
84 virtual etl::handle<synfig::Transform> get_transform()const;
87 /* === E N D =============================================================== */