Remove ancient trunk folder from svn repository

[synfig.git] / synfig-core / src / modules / lyr_std / twirl.h

diff --git a/synfig-core/src/modules/lyr_std/twirl.h b/synfig-core/src/modules/lyr_std/twirl.h
new file mode 100644 (file)
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+/* === S Y N F I G ========================================================= */
+/*!    \file twirl.h
+**     \brief Header file for implementation of the "Twirl" layer
+**
+**     $Id$
+**
+**     \legal
+**     Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**     Copyright (c) 2008 Chris Moore
+**
+**     This package is free software; you can redistribute it and/or
+**     modify it under the terms of the GNU General Public License as
+**     published by the Free Software Foundation; either version 2 of
+**     the License, or (at your option) any later version.
+**
+**     This package is distributed in the hope that it will be useful,
+**     but WITHOUT ANY WARRANTY; without even the implied warranty of
+**     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+**     General Public License for more details.
+**     \endlegal
+*/
+/* ========================================================================= */
+
+/* === S T A R T =========================================================== */
+
+#ifndef __SYNFIG_TWIRL_H
+#define __SYNFIG_TWIRL_H
+
+/* === H E A D E R S ======================================================= */
+
+#include <synfig/layer_composite.h>
+#include <synfig/color.h>
+#include <synfig/vector.h>
+#include <synfig/value.h>
+#include <synfig/gradient.h>
+#include <synfig/angle.h>
+
+/* === M A C R O S ========================================================= */
+
+/* === T Y P E D E F S ===================================================== */
+
+/* === C L A S S E S & S T R U C T S ======================================= */
+class Twirl_Trans;
+
+class Twirl : public synfig::Layer_Composite
+{
+       SYNFIG_LAYER_MODULE_EXT
+       friend class Twirl_Trans;
+
+private:
+
+       synfig::Point center;
+
+       synfig::Real radius;
+
+       synfig::Angle rotations;
+
+       bool distort_inside;
+
+       bool distort_outside;
+
+       synfig::Point distort(const synfig::Point &pos, bool reverse=false)const;
+public:
+
+       Twirl();
+
+       virtual bool set_param(const synfig::String & param, const synfig::ValueBase &value);
+
+       virtual synfig::ValueBase get_param(const synfig::String & param)const;
+
+       virtual synfig::Color get_color(synfig::Context context, const synfig::Point &pos)const;
+
+       //virtual bool accelerated_render(synfig::Context context,synfig::Surface *surface,int quality, const synfig::RendDesc &renddesc, synfig::ProgressCallback *cb)const;
+
+       synfig::Layer::Handle hit_check(synfig::Context context, const synfig::Point &point)const;
+
+       virtual Vocab get_param_vocab()const;
+       virtual etl::handle<synfig::Transform> get_transform()const;
+       virtual bool reads_context()const { return true; }
+}; // END of class Twirl
+
+/* === E N D =============================================================== */
+
+#endif