Initial commit of Cairo-based PDF import using libpoppler

[inkscape.git] / src / extension / internal / pdf-input-cairo.cpp

diff --git a/src/extension/internal/pdf-input-cairo.cpp b/src/extension/internal/pdf-input-cairo.cpp
new file mode 100644 (file)
index 0000000..2b38481
--- /dev/null
+++ b/src/extension/internal/pdf-input-cairo.cpp
@@ -0,0 +1,110 @@
+ /*
+ * Simple PDF import extension using libpoppler and Cairo's SVG surface.
+ * 
+ * Authors:
+ *   miklos erdelyi
+ *
+ * Copyright (C) 2007 Authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#ifdef HAVE_POPPLER_GLIB
+
+#include "pdf-input-cairo.h"
+#include "extension/system.h"
+#include "extension/input.h"
+#include "document.h"
+
+#include <cairo-svg.h>
+#include <poppler/glib/poppler.h>
+#include <poppler/glib/poppler-document.h>
+#include <poppler/glib/poppler-page.h>
+        
+namespace Inkscape {
+namespace Extension {
+namespace Internal {
+
+static cairo_status_t _write_ustring_cb(void *closure, const unsigned char *data, unsigned int length);
+
+SPDocument *
+PdfInputCairo::open(Inkscape::Extension::Input * mod, const gchar * uri) {
+
+    gchar* filename_uri = g_filename_to_uri(uri, NULL, NULL);
+    
+    PopplerDocument* document = poppler_document_new_from_file(filename_uri, NULL, NULL);
+    if (document == NULL)
+        return NULL;
+
+    double width, height;
+    PopplerPage* page = poppler_document_get_page(document, 0);
+    poppler_page_get_size(page, &width, &height);
+
+    Glib::ustring* output = new Glib::ustring("");
+    cairo_surface_t* surface = cairo_svg_surface_create_for_stream(Inkscape::Extension::Internal::_write_ustring_cb,
+                                                                   output, width, height);
+    cairo_t* cr = cairo_create(surface);
+    
+    poppler_page_render(page, cr);
+    cairo_show_page(cr);
+    
+    cairo_destroy(cr);
+    cairo_surface_destroy(surface);
+
+    SPDocument * doc = sp_document_new_from_mem(output->c_str(), output->length(), TRUE);
+    
+    delete output;
+    g_object_unref(page);
+    g_object_unref(document);
+    
+    return doc;
+}
+
+static cairo_status_t
+        _write_ustring_cb(void *closure, const unsigned char *data, unsigned int length)
+{
+    Glib::ustring* stream = (Glib::ustring*)closure;
+    stream->append((const char*)data, length);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+
+#include "clear-n_.h"
+
+void
+PdfInputCairo::init(void) {
+    Inkscape::Extension::Extension * ext;
+
+    ext = Inkscape::Extension::build_from_mem(
+        "<inkscape-extension>\n"
+            "<name>PDF Input</name>\n"
+            "<id>org.inkscape.input.pdf</id>\n"
+            "<input>\n"
+                "<extension>.pdf</extension>\n"
+                "<mimetype>application/pdf</mimetype>\n"
+                "<filetypename>Adobe PDF (*.pdf)</filetypename>\n"
+                "<filetypetooltip>PDF Document</filetypetooltip>\n"
+            "</input>\n"
+        "</inkscape-extension>", new PdfInputCairo());
+} // init
+
+} } }  /* namespace Inkscape, Extension, Implementation */
+
+#endif /* HAVE_POPPLER_GLIB */
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :