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73 lines
2.2 KiB
73 lines
2.2 KiB
//---------------------------------------------------------------------------- |
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// Anti-Grain Geometry - Version 2.4 |
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// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com) |
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// |
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// Permission to copy, use, modify, sell and distribute this software |
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// is granted provided this copyright notice appears in all copies. |
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// This software is provided "as is" without express or implied |
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// warranty, and with no claim as to its suitability for any purpose. |
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// |
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//---------------------------------------------------------------------------- |
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// Contact: mcseem@antigrain.com |
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// mcseemagg@yahoo.com |
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// http://www.antigrain.com |
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//---------------------------------------------------------------------------- |
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#ifndef AGG_CONV_CONCAT_INCLUDED |
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#define AGG_CONV_CONCAT_INCLUDED |
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#include "agg_basics.h" |
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namespace agg |
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{ |
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//=============================================================conv_concat |
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// Concatenation of two paths. Usually used to combine lines or curves |
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// with markers such as arrowheads |
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template<class VS1, class VS2> class conv_concat |
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{ |
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public: |
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conv_concat(VS1& source1, VS2& source2) : |
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m_source1(&source1), m_source2(&source2), m_status(2) {} |
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void attach1(VS1& source) { m_source1 = &source; } |
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void attach2(VS2& source) { m_source2 = &source; } |
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void rewind(unsigned path_id) |
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{ |
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m_source1->rewind(path_id); |
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m_source2->rewind(0); |
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m_status = 0; |
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} |
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unsigned vertex(double* x, double* y) |
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{ |
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unsigned cmd; |
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if(m_status == 0) |
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{ |
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cmd = m_source1->vertex(x, y); |
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if(!is_stop(cmd)) return cmd; |
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m_status = 1; |
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} |
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if(m_status == 1) |
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{ |
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cmd = m_source2->vertex(x, y); |
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if(!is_stop(cmd)) return cmd; |
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m_status = 2; |
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} |
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return path_cmd_stop; |
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} |
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private: |
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conv_concat(const conv_concat<VS1, VS2>&); |
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const conv_concat<VS1, VS2>& |
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operator = (const conv_concat<VS1, VS2>&); |
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VS1* m_source1; |
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VS2* m_source2; |
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int m_status; |
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}; |
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} |
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#endif
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