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82 lines
2.6 KiB
C++
82 lines
2.6 KiB
C++
//----------------------------------------------------------------------------
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// Anti-Grain Geometry (AGG) - Version 2.5
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// A high quality rendering engine for C++
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// Copyright (C) 2002-2006 Maxim Shemanarev
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// Contact: mcseem@antigrain.com
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// mcseemagg@yahoo.com
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// http://antigrain.com
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//
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// AGG is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// AGG is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with AGG; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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// MA 02110-1301, USA.
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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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