okular/ui/painter_agg2/agg_conv_transform.h
Enrico Ros c5b694d02c Painter_AGG2:
Part from the *very C00L* AGG2 library (www.antigrain.com) are imported
  from the agg23 source package. The imported files provides antialiased
  rendering on bgra32 qimage memory buffers.
  See "kpdf/ui/painter_agg2/README.kpdf" for more info.
PagePainter:
  Replaced my dear crappy scanline renderer (well, was the fastest btw :-)
  with agg2 based rendering code.
  Implemented HighlightAnnotation (HL, Underline, Strikeout and Squiggly)
  and InkAnnotation (simple one) rendering.
  Need a multiply-blending template algo for getting highlights to look
  as highlighs (not solid or transparent, like now).
Makefile.am(s):
  Updated to build the new library, set include paths and link it.

Here we go.

svn path=/branches/kpdf_annotations/kdegraphics/kpdf/; revision=405150
2005-04-12 20:44:26 +00:00

76 lines
2.3 KiB
C++

//----------------------------------------------------------------------------
// 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
//----------------------------------------------------------------------------
//
// class conv_transform
//
//----------------------------------------------------------------------------
#ifndef AGG_CONV_TRANSFORM_INCLUDED
#define AGG_CONV_TRANSFORM_INCLUDED
#include "agg_basics.h"
#include "agg_trans_affine.h"
#include "agg_vertex_iterator.h"
namespace agg
{
//----------------------------------------------------------conv_transform
template<class VertexSource, class Transformer=trans_affine> class conv_transform
{
public:
conv_transform(VertexSource& source, const Transformer& tr) :
m_source(&source), m_trans(&tr) {}
void set_source(VertexSource& source) { m_source = &source; }
void rewind(unsigned id)
{
m_source->rewind(id);
}
unsigned vertex(double* x, double* y)
{
unsigned cmd = m_source->vertex(x, y);
if(is_vertex(cmd))
{
m_trans->transform(x, y);
}
return cmd;
}
void transformer(const Transformer& tr)
{
m_trans = &tr;
}
typedef conv_transform<VertexSource, Transformer> source_type;
typedef vertex_iterator<source_type> iterator;
iterator begin(unsigned id) { return iterator(*this, id); }
iterator end() { return iterator(path_cmd_stop); }
private:
conv_transform(const conv_transform<VertexSource>&);
const conv_transform<VertexSource>&
operator = (const conv_transform<VertexSource>&);
VertexSource* m_source;
const Transformer* m_trans;
};
}
#endif