mapnik/deps/agg/include/agg_span_interpolator_adaptor.h

77 lines
2.6 KiB
C++

//----------------------------------------------------------------------------
// Anti-Grain Geometry - Version 2.4
// 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