ExportResult sp_export_png_file(SPDocument *doc, gchar const *filename, double x0, double y0, double x1, double y1, unsigned long int width, unsigned long int height, double xdpi, double ydpi, unsigned long bgcolor, unsigned int (*status) (float, void *), void *data, bool force_overwrite, GSList *items_only) { return sp_export_png_file(doc, filename, Geom::Rect(Geom::Point(x0,y0),Geom::Point(x1,y1)), width, height, xdpi, ydpi, bgcolor, status, data, force_overwrite, items_only); }
static void draw_page (GtkPrintOperation */*operation*/, GtkPrintContext *context, gint /*page_nr*/, gpointer user_data) { struct workaround_gtkmm *junk = (struct workaround_gtkmm*)user_data; //printf("%s %d\n",__FUNCTION__, page_nr); if (junk->_tab->as_bitmap()) { // Render as exported PNG gdouble width = sp_document_width(junk->_doc); gdouble height = sp_document_height(junk->_doc); gdouble dpi = junk->_tab->bitmap_dpi(); std::string tmp_png; std::string tmp_base = "inkscape-print-png-XXXXXX"; int tmp_fd; if ( (tmp_fd = Inkscape::IO::file_open_tmp (tmp_png, tmp_base)) >= 0) { close(tmp_fd); guint32 bgcolor = 0x00000000; Inkscape::XML::Node *nv = sp_repr_lookup_name (junk->_doc->rroot, "sodipodi:namedview"); if (nv && nv->attribute("pagecolor")) bgcolor = sp_svg_read_color(nv->attribute("pagecolor"), 0xffffff00); if (nv && nv->attribute("inkscape:pageopacity")) bgcolor |= SP_COLOR_F_TO_U(sp_repr_get_double_attribute (nv, "inkscape:pageopacity", 1.0)); sp_export_png_file(junk->_doc, tmp_png.c_str(), 0.0, 0.0, width, height, (unsigned long)(width * dpi / PX_PER_IN), (unsigned long)(height * dpi / PX_PER_IN), dpi, dpi, bgcolor, NULL, NULL, true, NULL); // This doesn't seem to work: //context->set_cairo_context ( Cairo::Context::create (Cairo::ImageSurface::create_from_png (tmp_png) ), dpi, dpi ); // // so we'll use a surface pattern blat instead... // // but the C++ interface isn't implemented in cairomm: //context->get_cairo_context ()->set_source_surface(Cairo::ImageSurface::create_from_png (tmp_png) ); // // so do it in C: { Cairo::RefPtr<Cairo::ImageSurface> png = Cairo::ImageSurface::create_from_png (tmp_png); cairo_t *cr = gtk_print_context_get_cairo_context (context); cairo_matrix_t m; cairo_get_matrix(cr, &m); cairo_scale(cr, PT_PER_IN / dpi, PT_PER_IN / dpi); // FIXME: why is the origin offset?? cairo_set_source_surface(cr, png->cobj(), -16.0, -16.0); cairo_paint(cr); cairo_set_matrix(cr, &m); } // Clean up unlink (tmp_png.c_str()); } else { g_warning(_("Could not open temporary PNG for bitmap printing")); } } else { // Render as vectors Inkscape::Extension::Internal::CairoRenderer renderer; Inkscape::Extension::Internal::CairoRenderContext *ctx = renderer.createContext(); // ctx->setPSLevel(CAIRO_PS_LEVEL_3); ctx->setTextToPath(false); ctx->setFilterToBitmap(true); ctx->setBitmapResolution(72); cairo_t *cr = gtk_print_context_get_cairo_context (context); cairo_surface_t *surface = cairo_get_target(cr); /** Call cairo_win32_printing_surface directly as a workaround until GTK uses this call. When GTK uses cairo_win32_printing_surface this automatically reverts. */ #ifdef WIN32 if (cairo_surface_get_type (surface) == CAIRO_SURFACE_TYPE_WIN32) { HDC dc = cairo_win32_surface_get_dc (surface); surface = _cairo_win32_printing_surface_create (dc); } #endif bool ret = ctx->setSurfaceTarget (surface, true); if (ret) { ret = renderer.setupDocument (ctx, junk->_doc, TRUE, NULL); if (ret) { renderer.renderItem(ctx, junk->_base); ret = ctx->finish(); } else { g_warning(_("Could not set up Document")); } } else { g_warning(_("Failed to set CairoRenderContext")); } // Clean up renderer.destroyContext(ctx); } }