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node_mapnik.cpp
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node_mapnik.cpp
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// v8
#include <v8.h>
// node
#include <node.h>
#include <node_buffer.h>
#include <node_version.h>
// node-mapnik
#include "mapnik_map.hpp"
#include "mapnik_color.hpp"
#include "mapnik_geometry.hpp"
#include "mapnik_feature.hpp"
#include "mapnik_fonts.hpp"
#include "mapnik_plugins.hpp"
#include "mapnik_palette.hpp"
#include "mapnik_projection.hpp"
#include "mapnik_proj_transform.hpp"
#include "mapnik_layer.hpp"
#include "mapnik_datasource.hpp"
#include "mapnik_featureset.hpp"
//#include "mapnik_js_datasource.hpp"
#include "mapnik_memory_datasource.hpp"
#include "mapnik_image.hpp"
#include "mapnik_image_view.hpp"
#include "mapnik_grid.hpp"
#include "mapnik_grid_view.hpp"
#include "mapnik_expression.hpp"
#include "utils.hpp"
// mapnik
#include <mapnik/version.hpp>
#if MAPNIK_VERSION >= 200100
#include <mapnik/marker_cache.hpp>
#include <mapnik/mapped_memory_cache.hpp>
#include <mapnik/image_compositing.hpp>
#endif
// boost
#include <boost/version.hpp>
// cairo
#if defined(HAVE_CAIRO)
#include <cairo-version.h>
#endif
namespace node_mapnik {
using namespace node;
using namespace v8;
/**
* Optional notification that the embedder is idle.
* V8 uses the notification to reduce memory footprint.
* This call can be used repeatedly if the embedder remains idle.
* Returns true if the embedder should stop calling IdleNotification
* until real work has been done. This indicates that V8 has done
* as much cleanup as it will be able to do.
*/
static Handle<Value> gc(const Arguments& args)
{
HandleScope scope;
return scope.Close(Boolean::New(V8::IdleNotification()));
}
static std::string format_version(int version)
{
std::ostringstream s;
s << version/100000 << "." << version/100 % 1000 << "." << version % 100;
return s.str();
}
static Handle<Value> clearCache(const Arguments& args)
{
HandleScope scope;
#if MAPNIK_VERSION >= 200200
mapnik::marker_cache::instance().clear();
mapnik::mapped_memory_cache::instance().clear();
#else
#if MAPNIK_VERSION >= 200100
mapnik::marker_cache::instance()->clear();
mapnik::mapped_memory_cache::instance()->clear();
#endif
#endif
return Undefined();
}
extern "C" {
static void InitMapnik (Handle<Object> target)
{
// module level functions
NODE_SET_METHOD(target, "register_datasources", node_mapnik::register_datasources);
NODE_SET_METHOD(target, "datasources", node_mapnik::available_input_plugins);
NODE_SET_METHOD(target, "register_fonts", node_mapnik::register_fonts);
NODE_SET_METHOD(target, "fonts", node_mapnik::available_font_faces);
NODE_SET_METHOD(target, "fontFiles", node_mapnik::available_font_files);
NODE_SET_METHOD(target, "clearCache", clearCache);
NODE_SET_METHOD(target, "gc", gc);
// Classes
Map::Initialize(target);
Color::Initialize(target);
Geometry::Initialize(target);
Feature::Initialize(target);
Image::Initialize(target);
ImageView::Initialize(target);
Palette::Initialize(target);
Projection::Initialize(target);
ProjTransform::Initialize(target);
Layer::Initialize(target);
Grid::Initialize(target);
GridView::Initialize(target);
Datasource::Initialize(target);
Featureset::Initialize(target);
// Not production safe, so disabling indefinitely
//JSDatasource::Initialize(target);
MemoryDatasource::Initialize(target);
Expression::Initialize(target);
// versions of deps
Local<Object> versions = Object::New();
versions->Set(String::NewSymbol("node"), String::New(NODE_VERSION+1));
versions->Set(String::NewSymbol("v8"), String::New(V8::GetVersion()));
versions->Set(String::NewSymbol("boost"), String::New(format_version(BOOST_VERSION).c_str()));
versions->Set(String::NewSymbol("boost_number"), Integer::New(BOOST_VERSION));
versions->Set(String::NewSymbol("mapnik"), String::New(format_version(MAPNIK_VERSION).c_str()));
versions->Set(String::NewSymbol("mapnik_number"), Integer::New(MAPNIK_VERSION));
#if defined(HAVE_CAIRO)
versions->Set(String::NewSymbol("cairo"), String::New(CAIRO_VERSION_STRING));
#endif
target->Set(String::NewSymbol("versions"), versions);
// built in support
Local<Object> supports = Object::New();
supports->Set(String::NewSymbol("grid"), True());
#if defined(HAVE_CAIRO)
supports->Set(String::NewSymbol("cairo"), True());
#else
supports->Set(String::NewSymbol("cairo"), False());
#endif
#if defined(HAVE_JPEG)
supports->Set(String::NewSymbol("jpeg"), True());
#else
supports->Set(String::NewSymbol("jpeg"), False());
#endif
target->Set(String::NewSymbol("supports"), supports);
#if MAPNIK_VERSION >= 200100
Local<Object> composite_ops = Object::New();
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "clear", mapnik::clear)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "src", mapnik::src)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "dst", mapnik::dst)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "src_over", mapnik::src_over)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "dst_over", mapnik::dst_over)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "src_in", mapnik::src_in)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "dst_in", mapnik::dst_in)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "src_out", mapnik::src_out)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "dst_out", mapnik::dst_out)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "src_atop", mapnik::src_atop)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "dst_atop", mapnik::dst_atop)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "xor", mapnik::_xor)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "plus", mapnik::plus)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "minus", mapnik::minus)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "multiply", mapnik::multiply)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "screen", mapnik::screen)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "overlay", mapnik::overlay)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "darken", mapnik::darken)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "lighten", mapnik::lighten)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "color_dodge", mapnik::color_dodge)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "color_burn", mapnik::color_burn)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "hard_light", mapnik::hard_light)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "soft_light", mapnik::soft_light)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "difference", mapnik::difference)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "exclusion", mapnik::exclusion)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "contrast", mapnik::contrast)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "invert", mapnik::invert)
NODE_MAPNIK_DEFINE_CONSTANT(composite_ops, "invert_rgb", mapnik::invert_rgb)
target->Set(String::NewSymbol("compositeOp"), composite_ops);
#endif
}
}
} // namespace node_mapnik
NODE_MODULE(_mapnik, node_mapnik::InitMapnik)