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+//----------------------------------------------------------------------------
+// Anti-Grain Geometry - Version 2.3
+// 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_SPAN_INTERPOLATOR_ADAPTOR_INCLUDED
+#define AGG_SPAN_INTERPOLATOR_ADAPTOR_INCLUDED
+
+#include "agg_basics.h"
+
+namespace agg
+{
+
+ //===============================================span_interpolator_adaptor
+ template<class Interpolator, class Distortion>
+ class span_interpolator_adaptor : public Interpolator
+ {
+ public:
+ typedef Interpolator base_type;
+ typedef typename base_type::trans_type trans_type;
+ typedef Distortion distortion_type;
+
+ //--------------------------------------------------------------------
+ span_interpolator_adaptor() {}
+ span_interpolator_adaptor(const trans_type& trans,
+ const distortion_type& dist) :
+ base_type(trans),
+ m_distortion(&dist)
+ {
+ }
+
+ //--------------------------------------------------------------------
+ span_interpolator_adaptor(const trans_type& trans,
+ const distortion_type& dist,
+ double x, double y, unsigned len) :
+ base_type(trans, x, y, len),
+ m_distortion(&dist)
+ {
+ }
+
+ //--------------------------------------------------------------------
+ const distortion_type& distortion() const
+ {
+ return *m_distortion;
+ }
+
+ //--------------------------------------------------------------------
+ void distortion(const distortion_type& dist)
+ {
+ m_distortion = dist;
+ }
+
+ //--------------------------------------------------------------------
+ void coordinates(int* x, int* y) const
+ {
+ base_type::coordinates(x, y);
+ m_distortion->calculate(x, y);
+ }
+
+ private:
+ //--------------------------------------------------------------------
+ const distortion_type* m_distortion;
+ };
+}
+
+
+#endif