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Diffstat (limited to 'agg/inc/agg_conv_unclose_polygon.h')
-rwxr-xr-x | agg/inc/agg_conv_unclose_polygon.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/agg/inc/agg_conv_unclose_polygon.h b/agg/inc/agg_conv_unclose_polygon.h new file mode 100755 index 000000000000..a6ba30a1119e --- /dev/null +++ b/agg/inc/agg_conv_unclose_polygon.h @@ -0,0 +1,59 @@ +//---------------------------------------------------------------------------- +// 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_CONV_UNCLOSE_POLYGON_INCLUDED +#define AGG_CONV_UNCLOSE_POLYGON_INCLUDED + +#include "agg_basics.h" +#include "agg_vertex_iterator.h" + +namespace agg +{ + //====================================================conv_unclose_polygon + template<class VertexSource> class conv_unclose_polygon + { + public: + conv_unclose_polygon(VertexSource& vs) : m_source(&vs) {} + + void set_source(VertexSource& source) { m_source = &source; } + + void rewind(unsigned path_id) + { + m_source->rewind(path_id); + } + + unsigned vertex(double* x, double* y) + { + unsigned cmd = m_source->vertex(x, y); + if(is_end_poly(cmd)) cmd &= ~path_flags_close; + return cmd; + } + + typedef conv_unclose_polygon<VertexSource> source_type; + typedef vertex_iterator<source_type> iterator; + iterator begin(unsigned id) { return iterator(*this, id); } + iterator end() { return iterator(path_cmd_stop); } + + private: + conv_unclose_polygon(const conv_unclose_polygon<VertexSource>&); + const conv_unclose_polygon<VertexSource>& + operator = (const conv_unclose_polygon<VertexSource>&); + + VertexSource* m_source; + }; + +} + +#endif |