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+ mapnik-image-from-cairo-in-python.patch from jonb

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adds a method to the python bindings to create an Image from a
    Cairo.ImageSurface().
This commit is contained in:
Artem Pavlenko 2009-01-17 20:34:58 +00:00
parent 387ff213ef
commit 391ae4c4be
1 changed files with 18 additions and 0 deletions
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18
bindings/python/mapnik_image.cpp
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@ -37,6 +37,11 @@ extern "C"
#include <mapnik/png_io.hpp> #include <mapnik/png_io.hpp>
#include <mapnik/image_reader.hpp> #include <mapnik/image_reader.hpp>
#include <sstream> #include <sstream>
// cairo
#if defined(HAVE_CAIRO) && defined(HAVE_PYCAIRO)
#include <cairomm/surface.h>
#include <pycairo.h>
#endif
using mapnik::Image32; using mapnik::Image32;
using mapnik::ImageReader; using mapnik::ImageReader;
@ -83,6 +88,15 @@ void blend (Image32 & im, unsigned x, unsigned y, Image32 const& im2, float opac
im.set_rectangle_alpha2(im2.data(),x,y,opacity); im.set_rectangle_alpha2(im2.data(),x,y,opacity);
} }
#if defined(HAVE_CAIRO) && defined(HAVE_PYCAIRO) && defined(CAIRO_HAS_IMAGE_SURFACE)
boost::shared_ptr<Image32> from_cairo(PycairoSurface* surface)
{
Cairo::RefPtr<Cairo::ImageSurface> s(new Cairo::ImageSurface(surface->surface));
boost::shared_ptr<Image32> image_ptr(new Image32(s));
return image_ptr;
}
#endif
void export_image() void export_image()
{ {
using namespace boost::python; using namespace boost::python;
@ -100,6 +114,10 @@ void export_image()
.def("save", save_to_file2) .def("save", save_to_file2)
.def("open",open_from_file) .def("open",open_from_file)
.staticmethod("open") .staticmethod("open")
#if defined(HAVE_CAIRO) && defined(HAVE_PYCAIRO) && defined(CAIRO_HAS_IMAGE_SURFACE)
.def("from_cairo",&from_cairo)
.staticmethod("from_cairo")
#endif
; ;
} }