73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
//----------------------------------------------------------------------------
|
|
// Anti-Grain Geometry - Version 2.4
|
|
// 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_CONCAT_INCLUDED
|
|
#define AGG_CONV_CONCAT_INCLUDED
|
|
|
|
#include "agg_basics.h"
|
|
|
|
namespace agg
|
|
{
|
|
//=============================================================conv_concat
|
|
// Concatenation of two paths. Usually used to combine lines or curves
|
|
// with markers such as arrowheads
|
|
template<class VS1, class VS2> class conv_concat
|
|
{
|
|
public:
|
|
conv_concat(VS1& source1, VS2& source2) :
|
|
m_source1(&source1), m_source2(&source2), m_status(2) {}
|
|
void attach1(VS1& source) { m_source1 = &source; }
|
|
void attach2(VS2& source) { m_source2 = &source; }
|
|
|
|
|
|
void rewind(unsigned path_id)
|
|
{
|
|
m_source1->rewind(path_id);
|
|
m_source2->rewind(0);
|
|
m_status = 0;
|
|
}
|
|
|
|
unsigned vertex(double* x, double* y)
|
|
{
|
|
unsigned cmd;
|
|
if(m_status == 0)
|
|
{
|
|
cmd = m_source1->vertex(x, y);
|
|
if(!is_stop(cmd)) return cmd;
|
|
m_status = 1;
|
|
}
|
|
if(m_status == 1)
|
|
{
|
|
cmd = m_source2->vertex(x, y);
|
|
if(!is_stop(cmd)) return cmd;
|
|
m_status = 2;
|
|
}
|
|
return path_cmd_stop;
|
|
}
|
|
|
|
private:
|
|
conv_concat(const conv_concat<VS1, VS2>&);
|
|
const conv_concat<VS1, VS2>&
|
|
operator = (const conv_concat<VS1, VS2>&);
|
|
|
|
VS1* m_source1;
|
|
VS2* m_source2;
|
|
int m_status;
|
|
|
|
};
|
|
}
|
|
|
|
|
|
#endif
|