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Diffstat (limited to 'agg/inc/agg_rasterizer_outline.h')
-rwxr-xr-x | agg/inc/agg_rasterizer_outline.h | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/agg/inc/agg_rasterizer_outline.h b/agg/inc/agg_rasterizer_outline.h new file mode 100755 index 000000000000..18512e76a1ad --- /dev/null +++ b/agg/inc/agg_rasterizer_outline.h @@ -0,0 +1,146 @@ +//---------------------------------------------------------------------------- +// Anti-Grain Geometry - Version 2.3 +// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com) +// +// Permission to copy, use, modify, sell and distribute this software +// is granted provided this copyright notice appears in all copies. +// This software is provided "as is" without express or implied +// warranty, and with no claim as to its suitability for any purpose. +// +//---------------------------------------------------------------------------- +// Contact: mcseem@antigrain.com +// mcseemagg@yahoo.com +// http://www.antigrain.com +//---------------------------------------------------------------------------- +#ifndef AGG_RASTERIZER_OUTLINE_INCLUDED +#define AGG_RASTERIZER_OUTLINE_INCLUDED + +#include "agg_basics.h" + +namespace agg +{ + //======================================================rasterizer_outline + template<class Renderer> class rasterizer_outline + { + public: + rasterizer_outline(Renderer& ren) : + m_ren(&ren), + m_start_x(0), + m_start_y(0), + m_vertices(0) + { + } + + //-------------------------------------------------------------------- + void move_to(int x, int y) + { + m_vertices = 1; + m_ren->move_to(m_start_x = x, m_start_y = y); + } + + //-------------------------------------------------------------------- + void line_to(int x, int y) + { + ++m_vertices; + m_ren->line_to(x, y); + } + + //-------------------------------------------------------------------- + void move_to_d(double x, double y) + { + move_to(m_ren->coord(x), m_ren->coord(y)); + } + + //-------------------------------------------------------------------- + void line_to_d(double x, double y) + { + line_to(m_ren->coord(x), m_ren->coord(y)); + } + + //-------------------------------------------------------------------- + void close() + { + if(m_vertices > 2) + { + line_to(m_start_x, m_start_y); + } + m_vertices = 0; + } + + //-------------------------------------------------------------------- + void add_vertex(double x, double y, unsigned cmd) + { + if(is_move_to(cmd)) + { + move_to_d(x, y); + } + else + { + if(is_end_poly(cmd)) + { + if(is_closed(cmd)) close(); + } + else + { + line_to_d(x, y); + } + } + } + + + //-------------------------------------------------------------------- + template<class VertexSource> + void add_path(VertexSource& vs, unsigned id=0) + { + double x; + double y; + + unsigned cmd; + vs.rewind(id); + while(!is_stop(cmd = vs.vertex(&x, &y))) + { + add_vertex(x, y, cmd); + } + } + + + //-------------------------------------------------------------------- + template<class VertexSource, class ColorStorage, class PathId> + void render_all_paths(VertexSource& vs, + const ColorStorage& colors, + const PathId& id, + unsigned num_paths) + { + for(unsigned i = 0; i < num_paths; i++) + { + m_ren->line_color(colors[i]); + add_path(vs, id[i]); + } + } + + + //-------------------------------------------------------------------- + template<class Ctrl> void render_ctrl(Ctrl& c) + { + unsigned i; + for(i = 0; i < c.num_paths(); i++) + { + m_ren->line_color(c.color(i)); + add_path(c, i); + } + } + + + private: + Renderer* m_ren; + int m_start_x; + int m_start_y; + unsigned m_vertices; + }; + + +} + + +#endif + |