/usr/include/agg2/agg_conv_transform.h is in libagg-dev 2.5+dfsg1-9.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Anti-Grain Geometry (AGG) - Version 2.5
// A high quality rendering engine for C++
// Copyright (C) 2002-2006 Maxim Shemanarev
// Contact: mcseem@antigrain.com
// mcseemagg@yahoo.com
// http://antigrain.com
//
// AGG is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// AGG is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with AGG; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
// MA 02110-1301, USA.
//----------------------------------------------------------------------------
#ifndef AGG_CONV_TRANSFORM_INCLUDED
#define AGG_CONV_TRANSFORM_INCLUDED
#include "agg_basics.h"
#include "agg_trans_affine.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 attach(VertexSource& source) { m_source = &source; }
void rewind(unsigned path_id)
{
m_source->rewind(path_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;
}
private:
conv_transform(const conv_transform<VertexSource>&);
const conv_transform<VertexSource>&
operator = (const conv_transform<VertexSource>&);
VertexSource* m_source;
const Transformer* m_trans;
};
}
#endif
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