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75 lines
2.3 KiB
75 lines
2.3 KiB
//---------------------------------------------------------------------------- |
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// Anti-Grain Geometry - Version 2.3 |
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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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// |
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// class conv_transform |
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// |
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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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#include "agg_vertex_iterator.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 set_source(VertexSource& source) { m_source = &source; } |
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void rewind(unsigned id) |
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{ |
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m_source->rewind(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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typedef conv_transform<VertexSource, Transformer> source_type; |
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typedef vertex_iterator<source_type> iterator; |
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iterator begin(unsigned id) { return iterator(*this, id); } |
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iterator end() { return iterator(path_cmd_stop); } |
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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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