Release 0.61.08

[synfig.git] / synfig-core / tags / 0.61.08 / src / synfig / layer_shape.h

diff --git a/synfig-core/tags/0.61.08/src/synfig/layer_shape.h b/synfig-core/tags/0.61.08/src/synfig/layer_shape.h
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+/* === S Y N F I G ========================================================= */
+/*!    \file layer_shape.h
+**     \brief Header file for implementation of the "Shape" layer
+**
+**     $Id$
+**
+**     \legal
+**     Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**     Copyright (c) 2007 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_LAYER_SHAPE_H
+#define __SYNFIG_LAYER_SHAPE_H
+
+/* === H E A D E R S ======================================================= */
+
+#include "layer_composite.h"
+#include "color.h"
+#include "vector.h"
+#include "blur.h"
+
+#include <vector>
+
+/* === 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 ======================================= */
+
+namespace synfig {
+
+/*!    \class Layer_Shape
+**     \brief writeme                  */
+class Layer_Shape : public Layer_Composite, public Layer_NoDeform
+{
+       SYNFIG_LAYER_MODULE_EXT
+
+       enum WindingStyle
+       {
+           WINDING_NON_ZERO=0,                 //!< less than -1 --> 1;  -1 --> 1;   0 --> 0;   1 --> 1;  greater than 1 --> 1
+           WINDING_EVEN_ODD=1,                 //!< add or subtract multiples of 2 to get into range -1:1, then as above
+
+           WINDING_END=2                               //!< \internal
+       };
+
+private:
+
+       //internal caching
+       struct Intersector;
+       Intersector     *edge_table;
+
+       //exported data
+       Color                                   color;
+
+       Point   offset;
+       bool    invert;
+       bool    antialias;
+
+       int             blurtype;
+       Real    feather;
+       WindingStyle winding_style;
+
+       std::vector< char >     bytestream;
+
+       //for use in creating the bytestream
+       int                                             lastbyteop;
+       int                                             lastoppos;
+
+protected:
+
+       Layer_Shape(const Real &a = 1.0, const Color::BlendMethod m = Color::BLEND_COMPOSITE);
+
+public:
+
+       ~Layer_Shape();
+
+       //! Clears out any data
+       /*!     Also clears out the Intersector
+       */
+       void clear();
+       //void sync();
+
+       void move_to(Real x, Real y);
+       void line_to(Real x, Real y);
+       void conic_to(Real x1, Real y1, Real x, Real y);
+       void conic_to_smooth(Real x, Real y);                           //x1,y1 derived from current tangent
+       void curve_to(Real x1, Real y1, Real x2, Real y2, Real x, Real y);
+       void curve_to_smooth(Real x2, Real y2, Real x, Real y); //x1,y1 derived from current tangent
+       void close();
+       void endpath();
+
+       virtual bool set_param(const String & param, const synfig::ValueBase &value);
+       virtual ValueBase get_param(const String & param)const;
+
+       virtual Vocab get_param_vocab()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 synfig::Layer::Handle hit_check(synfig::Context context, const synfig::Point &point)const;
+       virtual Rect get_bounding_rect()const;
+
+private:
+       class           PolySpan;
+       bool render_polyspan(Surface *surface,PolySpan &polyspan,
+                                               Color::BlendMethod method,Color::value_type amount)const;
+       bool render_polyspan(etl::surface<float> *surface,PolySpan &polyspan)const;
+       virtual bool render_shape(Surface *surface,bool useblend,int quality,const RendDesc &renddesc, ProgressCallback *cb)const;
+       virtual bool render_shape(etl::surface<float> *surface,int quality,const RendDesc &renddesc, ProgressCallback *cb)const;
+}; // END of Layer_Shape
+
+}; // END of namespace synfig
+/* === E N D =============================================================== */
+
+#endif