void renderLabels(const char* path)
{
BOOST_TEST_MESSAGE("Render: " << path);
Cairo::RefPtr<Cairo::Surface> surface = Cairo::ImageSurface::create(Cairo::FORMAT_ARGB32,
META_TILE_SIZE * TILE_SIZE, META_TILE_SIZE * TILE_SIZE);
Cairo::RefPtr<Cairo::Context> cr = Cairo::Context::create(surface);
cr->set_source_rgba(0.0, 0.0, 0.0, 1.0);
cr->save();
cr->set_source_rgba(1.0, 1.0, 1.0, 1.0);
cr->paint();
cr->restore();
std::vector<std::pair<string, FloatPoint>> toPlace;
toPlace.push_back(std::pair<string, FloatPoint>("Karlsruhe", FloatPoint(40, 200)));
toPlace.push_back(std::pair<string, FloatPoint>("Mannheim", FloatPoint(400, 200)));
toPlace.push_back(std::pair<string, FloatPoint>("Stuttgard", FloatPoint(200, 260)));
toPlace.push_back(std::pair<string, FloatPoint>("München", FloatPoint(380, 660)));
toPlace.push_back(std::pair<string, FloatPoint>("Pforzheim", FloatPoint(200, 600)));
toPlace.push_back(std::pair<string, FloatPoint>("Wien", FloatPoint(240, 680)));
toPlace.push_back(std::pair<string, FloatPoint>("Paris", FloatPoint(40, 880)));
toPlace.push_back(std::pair<string, FloatPoint>("Rom", FloatPoint(-40, 880)));
toPlace.push_back(std::pair<string, FloatPoint>("Nothing", FloatPoint(400, 760)));
toPlace.push_back(std::pair<string, FloatPoint>("To See", FloatPoint(720, 880)));
toPlace.push_back(std::pair<string, FloatPoint>("Here", FloatPoint(720, 560)));
toPlace.push_back(std::pair<string, FloatPoint>("Bielefeld", FloatPoint(420, 840)));
renderer->renderLabels(cr, toPlace);
BOOST_TEST_MESSAGE("Writing.");
surface->flush();
surface->write_to_png(path);
}
virtual void write(const Cairo::RefPtr<Cairo::Surface>& surface)
{
surface->flush();
//surface->write_to_png_stream(sigc::mem_fun(*this, &Renderer::PNGWriter::cairoWriter));
cairo_surface_write_to_png_stream(surface->cobj(), cairoWriter, (void*) buffer.get());
}
virtual void write(const Cairo::RefPtr<Cairo::Surface>& surface)
{
surface->flush();
/* do nothing because surface->flush() will call cairoWriter */
}