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+//----------------------------------------------------------------------------
+// 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
+