/*****************************************************************************
 * 
 * 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: mapnik_python.cc 27 2005-03-30 21:45:40Z pavlenko $

#include <boost/python.hpp>
#include <boost/get_pointer.hpp>
#include <boost/python/detail/api_placeholder.hpp>
#include <boost/python/exception_translator.hpp>

void register_cairo();
void export_color();
void export_coord();
void export_layer();
void export_parameters();
void export_envelope();
void export_query();
void export_geometry();
void export_image();
void export_image_view();
void export_map();
void export_python();
void export_filter();
void export_rule();
void export_style();
void export_stroke();
void export_feature();
void export_featureset();
void export_datasource();
void export_datasource_cache();
void export_point_symbolizer();
void export_line_symbolizer();
void export_line_pattern_symbolizer();
void export_polygon_symbolizer();
void export_polygon_pattern_symbolizer();
void export_raster_symbolizer();
void export_text_symbolizer();
void export_shield_symbolizer();
void export_font_engine();
void export_projection();
void export_proj_transform();
void export_view_transform();

#include <mapnik/version.hpp>
#include <mapnik/map.hpp>
#include <mapnik/agg_renderer.hpp>
#ifdef HAVE_CAIRO
#include <mapnik/cairo_renderer.hpp>
#endif
#include <mapnik/graphics.hpp>
#include <mapnik/image_util.hpp>
#include <mapnik/load_map.hpp>
#include <mapnik/config_error.hpp>
#include <mapnik/save_map.hpp>

#if defined(HAVE_CAIRO) && defined(HAVE_PYCAIRO)
#include <pycairo.h>
#endif

void render(const mapnik::Map& map,mapnik::Image32& image, unsigned offset_x = 0, unsigned offset_y = 0)
{
    Py_BEGIN_ALLOW_THREADS
    try
    {
        mapnik::agg_renderer<mapnik::Image32> ren(map,image,offset_x, offset_y);
        ren.apply();
    }
    catch (...)
    {
        Py_BLOCK_THREADS
        throw;
    }
    Py_END_ALLOW_THREADS
}

void render2(const mapnik::Map& map,mapnik::Image32& image)
{
    Py_BEGIN_ALLOW_THREADS
    try
    {
        mapnik::agg_renderer<mapnik::Image32> ren(map,image);
        ren.apply();
    }
    catch (...)
    {
        Py_BLOCK_THREADS
        throw;
    }
    Py_END_ALLOW_THREADS
}

#if defined(HAVE_CAIRO) && defined(HAVE_PYCAIRO)

void render3(const mapnik::Map& map,PycairoSurface* surface, unsigned offset_x = 0, unsigned offset_y = 0)
{
    Py_BEGIN_ALLOW_THREADS
    try
    {
        Cairo::RefPtr<Cairo::Surface> s(new Cairo::Surface(surface->surface));
        mapnik::cairo_renderer<Cairo::Surface> ren(map,s,offset_x, offset_y);
        ren.apply();
    }
    catch (...)
    {
        Py_BLOCK_THREADS
        throw;
    }
    Py_END_ALLOW_THREADS
}

void render4(const mapnik::Map& map,PycairoSurface* surface)
{
    Py_BEGIN_ALLOW_THREADS
    try
    {
        Cairo::RefPtr<Cairo::Surface> s(new Cairo::Surface(surface->surface));
        mapnik::cairo_renderer<Cairo::Surface> ren(map,s);
        ren.apply();
    }
    catch (...)
    {
        Py_BLOCK_THREADS
        throw;
    }
    Py_END_ALLOW_THREADS
}

void render5(const mapnik::Map& map,PycairoContext* context, unsigned offset_x = 0, unsigned offset_y = 0)
{
    Py_BEGIN_ALLOW_THREADS
    try
    {
        Cairo::RefPtr<Cairo::Context> c(new Cairo::Context(context->ctx));
        mapnik::cairo_renderer<Cairo::Context> ren(map,c,offset_x, offset_y);
        ren.apply();
    }
    catch (...)
    {
        Py_BLOCK_THREADS
        throw;
    }
    Py_END_ALLOW_THREADS
}

void render6(const mapnik::Map& map,PycairoContext* context)
{
    Py_BEGIN_ALLOW_THREADS
    try
    {
        Cairo::RefPtr<Cairo::Context> c(new Cairo::Context(context->ctx));
        mapnik::cairo_renderer<Cairo::Context> ren(map,c);
        ren.apply();
    }
    catch (...)
    {
        Py_BLOCK_THREADS
        throw;
    }
    Py_END_ALLOW_THREADS
}

#endif

void render_tile_to_file(const mapnik::Map& map, 
                         unsigned offset_x, unsigned offset_y,
                         unsigned width, unsigned height,
                         const std::string& file,
                         const std::string& format)
{
    mapnik::Image32 image(width,height);
    render(map,image,offset_x, offset_y);
    mapnik::save_to_file(image.data(),file,format);
}

void render_to_file1(const mapnik::Map& map,
                    const std::string& filename,
                    const std::string& format)
{
    mapnik::Image32 image(map.getWidth(),map.getHeight());
    render(map,image,0,0);
    mapnik::save_to_file(image,filename,format); 
}

void render_to_file2(const mapnik::Map& map,
                    const std::string& filename)
{
    mapnik::Image32 image(map.getWidth(),map.getHeight());
    render(map,image,0,0);
    mapnik::save_to_file(image,filename); 
}


double scale_denominator(mapnik::Map const &map, bool geographic)
{
    return mapnik::scale_denominator(map, geographic);
}

void translator(mapnik::config_error const & ex) {
    PyErr_SetString(PyExc_UserWarning, ex.what());
}

unsigned mapnik_version()
{
    return MAPNIK_VERSION;
}

bool has_cairo()
{
#if defined(HAVE_CAIRO) && defined(HAVE_PYCAIRO)
  return true;
#else
  return false;
#endif
}

BOOST_PYTHON_FUNCTION_OVERLOADS(load_map_overloads, load_map, 2, 3);
BOOST_PYTHON_FUNCTION_OVERLOADS(load_map_string_overloads, load_map_string, 2, 3);
BOOST_PYTHON_FUNCTION_OVERLOADS(save_map_overloads, save_map, 2, 3);

BOOST_PYTHON_MODULE(_mapnik)
{
 
    using namespace boost::python;

    using mapnik::load_map;
    using mapnik::load_map_string;
    using mapnik::save_map;

    register_exception_translator<mapnik::config_error>(translator);
    register_cairo();
    export_query();
    export_geometry();
    export_feature();
    export_featureset();
    export_datasource();
    export_parameters();
    export_color(); 
    export_envelope();   
    export_image();
    export_image_view();
    export_filter();
    export_rule();
    export_style();    
    export_layer();
    export_stroke();
    export_datasource_cache();
    export_point_symbolizer();
    export_line_symbolizer();
    export_line_pattern_symbolizer();
    export_polygon_symbolizer();
    export_polygon_pattern_symbolizer();
    export_raster_symbolizer();
    export_text_symbolizer();
    export_shield_symbolizer();
    export_font_engine();
    export_projection();
    export_proj_transform();
    export_view_transform();
    export_coord();
    export_map();

    def("render_to_file",&render_to_file1,
        "\n"
        "Render Map to file using explicit image type.\n"
        "\n"
        "Usage:\n"
        ">>> from mapnik import Map, render_to_file, load_map\n"
        ">>> m = Map(256,256)\n"
        ">>> load_map(m,'mapfile.xml')\n"
        ">>> render_to_file(m,'image32bit.png','png')\n"
        "\n"
        "8 bit (paletted) PNG can be requested with 'png256':\n"
        ">>> render_to_file(m,'8bit_image.png','png256')\n"
        "\n"
        "JPEG quality can be controlled by adding a suffix to\n"
        "'jpeg' between 0 and 100 (default is 85):\n"
        ">>> render_to_file(m,'top_quality.jpeg','jpeg100')\n"
        ">>> render_to_file(m,'medium_quality.jpeg','jpeg50')\n"
        );

    def("render_to_file",&render_to_file2,
        "\n"
        "Render Map to file (type taken from file extension)\n"
        "\n"
        "Usage:\n"
        ">>> from mapnik import Map, render_to_file, load_map\n"
        ">>> m = Map(256,256)\n"
        ">>> render_to_file(m,'image.jpeg')\n"
        "\n"
        );

    def("render_tile_to_file",&render_tile_to_file,
        "\n"
        "TODO\n"
        "\n"
        ); 

    
    def("render",&render,
        "\n"
        "Render Map to an AGG Image32 using offsets\n"
        "\n"
        "Usage:\n"
        ">>> from mapnik import Map, Image, render, load_map\n"
        ">>> m = Map(256,256)\n"
        ">>> load_map(m,'mapfile.xml')\n"
        ">>> im = Image(m.width,m.height)\n"
        ">>> render(m,im,1,1)\n"
        "\n"
        ); 

    def("render",&render2,
        "\n"
        "Render Map to an AGG Image32\n"
        "\n"
        "Usage:\n"
        ">>> from mapnik import Map, Image, render, load_map\n"
        ">>> m = Map(256,256)\n"
        ">>> load_map(m,'mapfile.xml')\n"
        ">>> im = Image(m.width,m.height)\n"
        ">>> render(m,im)\n"
        "\n"
        );

#if defined(HAVE_CAIRO) && defined(HAVE_PYCAIRO)
    def("render",&render3,
        "\n"
        "Render Map to Cairo Surface using offsets\n"
        "\n"
        "Usage:\n"
        ">>> from mapnik import Map, render, load_map\n"
        ">>> from cairo import SVGSurface\n"
        ">>> m = Map(256,256)\n"
        ">>> load_map(m,'mapfile.xml')\n"
        ">>> surface = SVGSurface('image.svg', m.width, m.height)\n"
        ">>> render(m,surface,1,1)\n"
        "\n"
        );

    def("render",&render4,
        "\n"
        "Render Map to Cairo Surface\n"
        "\n"
        "Usage:\n"
        ">>> from mapnik import Map, render, load_map\n"
        ">>> from cairo import SVGSurface\n"
        ">>> m = Map(256,256)\n"
        ">>> load_map(m,'mapfile.xml')\n"
        ">>> surface = SVGSurface('image.svg', m.width, m.height)\n"
        ">>> render(m,surface)\n"
        "\n"
        );

    def("render",&render5,
        "\n"
        "Render Map to Cairo Context using offsets\n"
        "\n"
        "Usage:\n"
        ">>> from mapnik import Map, render, load_map\n"
        ">>> from cairo import SVGSurface, Context\n"
        ">>> surface = SVGSurface('image.svg', m.width, m.height)\n"
        ">>> ctx = Context(surface)\n"
        ">>> load_map(m,'mapfile.xml')\n"  
        ">>> render(m,context,1,1)\n"
        "\n"
        );

    def("render",&render6,
        "\n"
        "Render Map to Cairo Context\n"
        "\n"
        "Usage:\n"
        ">>> from mapnik import Map, render, load_map\n"
        ">>> from cairo import SVGSurface, Context\n"
        ">>> surface = SVGSurface('image.svg', m.width, m.height)\n"
        ">>> ctx = Context(surface)\n"
        ">>> load_map(m,'mapfile.xml')\n"
        ">>> render(m,context)\n"
        "\n"
        );
#endif

    def("scale_denominator", &scale_denominator,
        "\n"
        "Return the Map Scale Denominator.\n"
        "Also available as Map.scale_denominator()\n"
        "\n"
        "Usage:\n"
        "\n"
        ">>> from mapnik import Map, Projection, scale_denominator, load_map\n"
        ">>> m = Map(256,256)\n"
        ">>> load_map(m,'mapfile.xml')\n"
        ">>> scale_denominator(m,Projection(m.srs).geographic)\n"
        "\n"
        );
   
    def("load_map", & load_map, load_map_overloads());

    def("load_map_from_string", & load_map_string, load_map_string_overloads());

    def("save_map", & save_map, save_map_overloads());
/*
        "\n"
        "Save Map object to XML file\n"
        "\n"
        "Usage:\n"
        ">>> from mapnik import Map, load_map, save_map\n"
        ">>> m = Map(256,256)\n"
        ">>> load_map(m,'mapfile_wgs84.xml')\n"
        ">>> m.srs\n"
        "'+proj=latlong +datum=WGS84'\n"
        ">>> m.srs = '+init=espg:3395'\n"
        ">>> save_map(m,'mapfile_mercator.xml')\n"
        "\n"
        );
*/

    def("mapnik_version", &mapnik_version,"Get the Mapnik version number");
    def("has_cairo", &has_cairo, "Get cairo library status");
    
    using mapnik::symbolizer;
    class_<symbolizer>("Symbolizer",no_init)
       ;
    
    register_ptr_to_python<mapnik::filter_ptr>();
}