Initial Stable Commit

[synfig.git] / synfig-core / trunk / src / modules / mod_geometry / circle.h

diff --git a/synfig-core/trunk/src/modules/mod_geometry/circle.h b/synfig-core/trunk/src/modules/mod_geometry/circle.h
new file mode 100644 (file)
index 0000000..b3651e3
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+++ b/synfig-core/trunk/src/modules/mod_geometry/circle.h
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+/* === S I N F G =========================================================== */
+/*!    \file circle.h
+**     \brief Template Header
+**
+**     $Id: circle.h,v 1.2 2005/01/24 03:08:17 darco Exp $
+**
+**     \legal
+**     Copyright (c) 2002 Robert B. Quattlebaum Jr.
+**
+**     This software and associated documentation
+**     are CONFIDENTIAL and PROPRIETARY property of
+**     the above-mentioned copyright holder.
+**
+**     You may not copy, print, publish, or in any
+**     other way distribute this software without
+**     a prior written agreement with
+**     the copyright holder.
+**     \endlegal
+*/
+/* ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifndef __SINFG_LAYER_CIRCLE_H__
+#define __SINFG_LAYER_CIRCLE_H__
+
+/* -- H E A D E R S --------------------------------------------------------- */
+
+#include <sinfg/layer_composite.h>
+#include <sinfg/color.h>
+#include <sinfg/vector.h>
+
+using namespace sinfg;
+using namespace std;
+using namespace etl;
+
+/* -- M A C R O S ----------------------------------------------------------- */
+
+/* -- T Y P E D E F S ------------------------------------------------------- */
+
+/* -- S T R U C T S & C L A S S E S ----------------------------------------- */
+
+class Circle : public sinfg::Layer_Composite, public sinfg::Layer_NoDeform
+{
+       SINFG_LAYER_MODULE_EXT
+private:
+       sinfg::Color color;
+       sinfg::Point pos;
+       sinfg::Real radius;
+       sinfg::Real feather;
+       bool invert;
+       int falloff;
+
+       //Caching system for circle
+       struct CircleDataCache
+       {
+               Real inner_radius;
+               Real outer_radius;
+       
+               Real inner_radius_sqd;
+               Real outer_radius_sqd;
+       
+               Real diff_sqd;
+               Real double_feather;
+       };
+       
+       typedef Real    FALLOFF_FUNC(const CircleDataCache &c, const Real &mag_sqd);
+       
+       FALLOFF_FUNC    *falloff_func;
+       CircleDataCache cache;
+
+       void constructcache();
+
+       static  Real    SqdFalloff(const CircleDataCache &c, const Real &mag_sqd);
+       static  Real    InvSqdFalloff(const CircleDataCache &c, const Real &mag_sqd);                   
+       static  Real    SqrtFalloff(const CircleDataCache &c, const Real &mag_sqd);
+       static  Real    InvSqrtFalloff(const CircleDataCache &c, const Real &mag_sqd);          
+       static  Real    LinearFalloff(const CircleDataCache &c, const Real &mag_sqd);
+       static  Real    InvLinearFalloff(const CircleDataCache &c, const Real &mag_sqd);                
+       static  Real    SigmondFalloff(const CircleDataCache &c, const Real &mag_sqd);
+       static  Real    InvSigmondFalloff(const CircleDataCache &c, const Real &mag_sqd);
+       static  Real    CosineFalloff(const CircleDataCache &c, const Real &mag_sqd);
+       static  Real    InvCosineFalloff(const CircleDataCache &c, const Real &mag_sqd);                
+       
+       FALLOFF_FUNC    *GetFalloffFunc()const;
+       bool ImportParameters(const String &param, const ValueBase &value);
+
+public:
+       enum Falloff
+       {
+               FALLOFF_SQUARED         =0,
+               FALLOFF_INTERPOLATION_LINEAR            =1,
+               FALLOFF_SMOOTH          =2,
+               FALLOFF_COSINE          =2,
+               FALLOFF_SIGMOND         =3,
+               FALLOFF_SQRT            =4
+       };
+       
+       Circle();
+       
+       virtual bool set_param(const String &param, const ValueBase &value);
+       
+       virtual ValueBase get_param(const String &param)const;
+       
+       virtual Color get_color(Context context, const Point &pos)const;
+       
+       virtual bool accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const;
+
+       virtual sinfg::Rect get_full_bounding_rect(sinfg::Context context)const;
+       virtual sinfg::Rect get_bounding_rect()const;
+
+       sinfg::Layer::Handle hit_check(sinfg::Context context, const sinfg::Point &point)const; 
+       
+       virtual Vocab get_param_vocab()const;
+};
+
+/* -- E X T E R N S --------------------------------------------------------- */
+
+
+/* -- E N D ----------------------------------------------------------------- */
+
+#endif