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74 lines
2.3 KiB
C++
74 lines
2.3 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_TRANSFORM_INCLUDED
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#define AGG_CONV_TRANSFORM_INCLUDED
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#include "agg_basics.h"
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#include "agg_trans_affine.h"
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namespace agg
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{
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//----------------------------------------------------------conv_transform
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template<class VertexSource, class Transformer=trans_affine> class conv_transform
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{
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public:
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conv_transform(VertexSource& source, const Transformer& tr) :
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m_source(&source), m_trans(&tr) {}
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void attach(VertexSource& source) { m_source = &source; }
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void rewind(unsigned path_id)
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{
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m_source->rewind(path_id);
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}
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unsigned vertex(double* x, double* y)
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{
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unsigned cmd = m_source->vertex(x, y);
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if(is_vertex(cmd))
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{
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m_trans->transform(x, y);
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}
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return cmd;
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}
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void transformer(const Transformer& tr)
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{
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m_trans = &tr;
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}
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private:
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conv_transform(const conv_transform<VertexSource>&);
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const conv_transform<VertexSource>&
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operator = (const conv_transform<VertexSource>&);
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VertexSource* m_source;
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const Transformer* m_trans;
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};
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}
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#endif
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