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# layer_shape.h

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    00001 /* === S Y N F I G ========================================================= */
    00022 /* ========================================================================= */
    00023
    00024 /* === S T A R T =========================================================== */
    00025
    00026 #ifndef __SYNFIG_LAYER_SHAPE_H
    00027 #define __SYNFIG_LAYER_SHAPE_H
    00028
    00029 /* === H E A D E R S ======================================================= */
    00030
    00031 #include "layer_composite.h"
    00032 #include "color.h"
    00033 #include "vector.h"
    00034 #include "blur.h"
    00035
    00036 #include <vector>
    00037
    00038 /* === M A C R O S ========================================================= */
    00039
    00040 /* === T Y P E D E F S ===================================================== */
    00041
    00042 /* === C L A S S E S & S T R U C T S ======================================= */
    00043
    00044 namespace synfig {
    00045
    00048 class Layer_Shape : public Layer_Composite, public Layer_NoDeform
    00049 {
    00050     SYNFIG_LAYER_MODULE_EXT
    00051
    00052     enum WindingStyle
    00053     {
    00054         WINDING_NON_ZERO=0,
    00055         WINDING_EVEN_ODD=1,
    00056
    00057         WINDING_END=2
    00058     };
    00059
    00060 private:
    00061
    00062     //internal caching
    00063     struct Intersector;
    00064     Intersector *edge_table;
    00065
    00066     //exported data
    00067     Color                   color;
    00068
    00069     Point   origin;
    00070     bool    invert;
    00071     bool    antialias;
    00072
    00073     int     blurtype;
    00074     Real    feather;
    00075     WindingStyle winding_style;
    00076
    00077     std::vector< char >     bytestream;
    00078
    00079     //for use in creating the bytestream
    00080     int                     lastbyteop;
    00081     int                     lastoppos;
    00082
    00083 protected:
    00084
    00085     Layer_Shape(const Real &a = 1.0, const Color::BlendMethod m = Color::BLEND_COMPOSITE);
    00086
    00087 public:
    00088
    00089     ~Layer_Shape();
    00090
    00092
    00094     void clear();
    00095     //void sync();
    00096
    00097     void move_to(Real x, Real y);
    00098     void line_to(Real x, Real y);
    00099     void conic_to(Real x1, Real y1, Real x, Real y);
    00100     void conic_to_smooth(Real x, Real y);               //x1,y1 derived from current tangent
    00101     void curve_to(Real x1, Real y1, Real x2, Real y2, Real x, Real y);
    00102     void curve_to_smooth(Real x2, Real y2, Real x, Real y); //x1,y1 derived from current tangent
    00103     void close();
    00104     void endpath();
    00105
    00106     virtual bool set_param(const String & param, const synfig::ValueBase &value);
    00107     virtual ValueBase get_param(const String & param)const;
    00108
    00109     virtual Vocab get_param_vocab()const;
    00110
    00111     virtual Color get_color(Context context, const Point &pos)const;
    00112     virtual bool accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const;
    00113     virtual synfig::Layer::Handle hit_check(synfig::Context context, const synfig::Point &point)const;
    00114     virtual Rect get_bounding_rect()const;
    00115
    00116 private:
    00117     class       PolySpan;
    00118     bool render_polyspan(Surface *surface,PolySpan &polyspan,
    00119                         Color::BlendMethod method,Color::value_type amount)const;
    00120     bool render_polyspan(etl::surface<float> *surface,PolySpan &polyspan)const;
    00121     virtual bool render_shape(Surface *surface,bool useblend,int quality,const RendDesc &renddesc, ProgressCallback *cb)const;
    00122     virtual bool render_shape(etl::surface<float> *surface,int quality,const RendDesc &renddesc, ProgressCallback *cb)const;
    00123 }; // END of Layer_Shape
    00124
    00125 }; // END of namespace synfig
    00126 /* === E N D =============================================================== */
    00127
    00128 #endif