67 lines
2.6 KiB
C++
67 lines
2.6 KiB
C++
/*****************************************************************************
|
|
*
|
|
* This file is part of Mapnik (c++ mapping toolkit)
|
|
*
|
|
* Copyright (C) 2006 Artem Pavlenko, Jean-Francois Doyon
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
*****************************************************************************/
|
|
//$Id$
|
|
|
|
#include <boost/python.hpp>
|
|
#include <mapnik/image_util.hpp>
|
|
#include <mapnik/image_view.hpp>
|
|
#include <mapnik/jpeg_io.hpp>
|
|
#include <mapnik/png_io.hpp>
|
|
#include <sstream>
|
|
|
|
using mapnik::ImageData32;
|
|
using mapnik::image_view;
|
|
using mapnik::save_to_file;
|
|
|
|
// output 'raw' pixels
|
|
PyObject* view_tostring1(image_view<ImageData32> const& view)
|
|
{
|
|
int size = view.width() * view.height() * 4;
|
|
return ::PyString_FromStringAndSize((const char*)view.data().getBytes(),size);
|
|
}
|
|
|
|
// encode (png,jpeg)
|
|
PyObject* view_tostring2(image_view<ImageData32> const & view, std::string const& format)
|
|
{
|
|
std::ostringstream ss(std::ios::out|std::ios::binary);
|
|
if (format == "png") save_as_png(ss,view.data());
|
|
else if (format == "png256") save_as_png256(ss,view.data());
|
|
else if (format == "jpeg") save_as_jpeg(ss,85,view.data());
|
|
else throw mapnik::ImageWriterException("unknown format: " + format);
|
|
return ::PyString_FromStringAndSize((const char*)ss.str().c_str(),ss.str().size());
|
|
}
|
|
|
|
void (*save_view1)(image_view<ImageData32> const&, std::string const&,std::string const&) = mapnik::save_to_file;
|
|
void (*save_view2)(image_view<ImageData32> const&, std::string const&) = mapnik::save_to_file;
|
|
|
|
void export_image_view()
|
|
{
|
|
using namespace boost::python;
|
|
class_<image_view<ImageData32> >("ImageView","A view into an image.",no_init)
|
|
.def("width",&image_view<ImageData32>::width)
|
|
.def("height",&image_view<ImageData32>::height)
|
|
.def("tostring",&view_tostring1)
|
|
.def("tostring",&view_tostring2)
|
|
.def("save",save_view1)
|
|
.def("save",save_view2)
|
|
;
|
|
}
|