[evince] pdf: Implement ev_document_text_get_text_attrs()

[Carlos Garcia Campos <carlosgc src gnome org>]

commit 96b9a18bf95d9dc445b2a52c5c0f2920d3f77f83
Author: Antia Puentes <apuentes igalia com>
Date:   Wed Jul 10 17:50:18 2013 +0200

    pdf: Implement ev_document_text_get_text_attrs()

 backend/pdf/ev-poppler.cc |   53 +++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 53 insertions(+), 0 deletions(-)
---
diff --git a/backend/pdf/ev-poppler.cc b/backend/pdf/ev-poppler.cc
index 8b1bd78..f4c63c7 100644
--- a/backend/pdf/ev-poppler.cc
+++ b/backend/pdf/ev-poppler.cc
@@ -2172,12 +2172,65 @@ pdf_document_text_get_text_layout (EvDocumentText  *selection,
                                             (PopplerRectangle **)areas, n_areas);
 }
 
+static PangoAttrList *
+pdf_document_text_get_text_attrs (EvDocumentText *document_text,
+                                 EvPage         *page)
+{
+       GList         *backend_attrs_list,  *l;
+       PangoAttrList *attrs_list;
+
+       g_return_val_if_fail (POPPLER_IS_PAGE (page->backend_page), NULL);
+
+       backend_attrs_list = poppler_page_get_text_attributes (POPPLER_PAGE (page->backend_page));
+       if (!backend_attrs_list)
+               return NULL;
+
+       attrs_list = pango_attr_list_new ();
+        for (l = backend_attrs_list; l; l = g_list_next (l)) {
+                PopplerTextAttributes *backend_attrs = (PopplerTextAttributes *)l->data;
+               PangoAttribute        *attr;
+
+               if (backend_attrs->is_underlined) {
+                       attr = pango_attr_underline_new (PANGO_UNDERLINE_SINGLE);
+                       attr->start_index = backend_attrs->start_index;
+                       attr->end_index = backend_attrs->end_index;
+                       pango_attr_list_insert (attrs_list, attr);
+               }
+
+               attr = pango_attr_foreground_new (backend_attrs->color.red,
+                                                 backend_attrs->color.green,
+                                                 backend_attrs->color.blue);
+               attr->start_index = backend_attrs->start_index;
+               attr->end_index = backend_attrs->end_index;
+               pango_attr_list_insert (attrs_list, attr);
+
+               if (backend_attrs->font_name) {
+                       attr = pango_attr_family_new (backend_attrs->font_name);
+                       attr->start_index = backend_attrs->start_index;
+                       attr->end_index = backend_attrs->end_index;
+                       pango_attr_list_insert (attrs_list, attr);
+               }
+
+               if (backend_attrs->font_size) {
+                       attr = pango_attr_size_new (backend_attrs->font_size * PANGO_SCALE);
+                       attr->start_index = backend_attrs->start_index;
+                       attr->end_index = backend_attrs->end_index;
+                       pango_attr_list_insert (attrs_list, attr);
+               }
+       }
+
+       poppler_page_free_text_attributes (backend_attrs_list);
+
+       return attrs_list;
+}
+
 static void
 pdf_document_text_iface_init (EvDocumentTextInterface *iface)
 {
         iface->get_text_mapping = pdf_document_text_get_text_mapping;
         iface->get_text = pdf_document_text_get_text;
         iface->get_text_layout = pdf_document_text_get_text_layout;
+       iface->get_text_attrs = pdf_document_text_get_text_attrs;
 }
 
 /* Page Transitions */