layer_shape.h

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00001 /* === S Y N F I G ========================================================= */
00021 /* ========================================================================= */
00022 
00023 /* === S T A R T =========================================================== */
00024 
00025 #ifndef __SYNFIG_LAYER_SHAPE_H
00026 #define __SYNFIG_LAYER_SHAPE_H
00027 
00028 /* === H E A D E R S ======================================================= */
00029 
00030 #include "layer_composite.h"
00031 #include "color.h"
00032 #include "vector.h"
00033 #include "blur.h"
00034 
00035 #include <vector>
00036 
00037 /* === M A C R O S ========================================================= */
00038 
00039 /* === T Y P E D E F S ===================================================== */
00040 
00041 /* === C L A S S E S & S T R U C T S ======================================= */
00042 
00043 namespace synfig {
00044     
00047 class Layer_Shape : public Layer_Composite, public Layer_NoDeform
00048 {
00049     SYNFIG_LAYER_MODULE_EXT
00050     
00051 private:
00052     
00053     //internal cacheing
00054     struct Intersector;
00055     Intersector *edge_table;
00056     
00057     //exported data
00058     Color                   color;
00059     
00060     Point   offset;
00061     bool    invert;
00062     bool    antialias;
00063     
00064     int     blurtype;
00065     Real    feather;
00066     
00067     std::vector< char >     bytestream;
00068     
00069     //for use in creating the bytestream
00070     int                     lastbyteop;
00071     int                     lastoppos;
00072 
00073 protected:
00074 
00075     Layer_Shape(const Real &a = 1.0, const Color::BlendMethod m = Color::BLEND_COMPOSITE);
00076 
00077 public:
00078 
00079     ~Layer_Shape();
00080 
00082 
00084     void clear();
00085     //void sync();
00086 
00087     void move_to(Real x, Real y);
00088     void line_to(Real x, Real y);
00089     void conic_to(Real x1, Real y1, Real x, Real y);
00090     void conic_to_smooth(Real x, Real y);               //x1,y1 derived from current tangent
00091     void curve_to(Real x1, Real y1, Real x2, Real y2, Real x, Real y);
00092     void curve_to_smooth(Real x2, Real y2, Real x, Real y); //x1,y1 derived from current tangent
00093     void close();
00094     void endpath();
00095 
00096     virtual bool set_param(const String & param, const synfig::ValueBase &value);
00097     virtual ValueBase get_param(const String & param)const;
00098     
00099     virtual Vocab get_param_vocab()const;
00100 
00101     virtual Color get_color(Context context, const Point &pos)const;
00102     virtual bool accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const;
00103     virtual synfig::Layer::Handle hit_check(synfig::Context context, const synfig::Point &point)const;
00104     virtual Rect get_bounding_rect()const;
00105 
00106 private:
00107     class       PolySpan;
00108     bool render_polyspan(Surface *surface,PolySpan &polyspan,
00109                         Color::BlendMethod method,Color::value_type amount)const;
00110     bool render_polyspan(etl::surface<float> *surface,PolySpan &polyspan)const;
00111     virtual bool render_shape(Surface *surface,bool useblend,int quality,const RendDesc &renddesc, ProgressCallback *cb)const;
00112     virtual bool render_shape(etl::surface<float> *surface,int quality,const RendDesc &renddesc, ProgressCallback *cb)const;
00113 }; // END of Layer_Shape
00114 
00115 }; // END of namespace synfig
00116 /* === E N D =============================================================== */
00117 
00118 #endif

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