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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_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
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