1 /* === S Y N F I G ========================================================= */
2 /*! \file lineargradient.h
3 ** \brief Header file for implementation of the "Linear Gradient" layer
8 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
10 ** This package is free software; you can redistribute it and/or
11 ** modify it under the terms of the GNU General Public License as
12 ** published by the Free Software Foundation; either version 2 of
13 ** the License, or (at your option) any later version.
15 ** This package is distributed in the hope that it will be useful,
16 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 ** General Public License for more details.
21 ** === N O T E S ===========================================================
23 ** ========================================================================= */
25 /* === S T A R T =========================================================== */
27 #ifndef __SYNFIG_INTERPOLATION_LINEARGRADIENT_H
28 #define __SYNFIG_INTERPOLATION_LINEARGRADIENT_H
30 /* === H E A D E R S ======================================================= */
32 #include <synfig/vector.h>
33 #include <synfig/layer_composite.h>
34 #include <synfig/gradient.h>
36 /* === M A C R O S ========================================================= */
38 /* === T Y P E D E F S ===================================================== */
40 /* === C L A S S E S & S T R U C T S ======================================= */
42 using namespace synfig;
46 class LinearGradient : public Layer_Composite, public Layer_NoDeform
48 SYNFIG_LAYER_MODULE_EXT
61 synfig::Color color_func(const synfig::Point &x, float supersample=0)const;
63 float calc_supersample(const synfig::Point &x, float pw,float ph)const;
68 virtual bool set_param(const String ¶m, const ValueBase &value);
69 virtual ValueBase get_param(const String ¶m)const;
70 virtual Color get_color(Context context, const Point &pos)const;
71 virtual bool accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const;
72 synfig::Layer::Handle hit_check(synfig::Context context, const synfig::Point &point)const;
74 virtual Vocab get_param_vocab()const;
77 /* === E N D =============================================================== */