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authorMarco Pesenti Gritti <marco@gnome.org>2005-01-13 17:49:01 (GMT)
committer Marco Pesenti Gritti <marco@src.gnome.org>2005-01-13 17:49:01 (GMT)
commite0ca7880392b3d064e55406f270e2f68779e3cdc (patch)
tree684585ef2bc8531c2471490ffb5b130b7cc34f23 /pdf/xpdf/pdf-document.cc
parentddc0ad5b3bd75a640ba362cdccde7449654bae61 (diff)
Add support for document links
2005-01-13 Marco Pesenti Gritti <marco@gnome.org> * backend/ev-document.c: (ev_document_get_link): * backend/ev-document.h: * pdf/xpdf/pdf-document.cc: * shell/ev-application.c: (ev_application_open): * shell/ev-application.h: * shell/ev-sidebar-links.c: (selection_changed_cb): * shell/ev-view.c: (ev_view_button_release_event), (go_to_link), (ev_view_go_to_link): Add support for document links
Diffstat (limited to 'pdf/xpdf/pdf-document.cc')
-rw-r--r--pdf/xpdf/pdf-document.cc90
1 files changed, 67 insertions, 23 deletions
diff --git a/pdf/xpdf/pdf-document.cc b/pdf/xpdf/pdf-document.cc
index a64dc4c..a8824e8 100644
--- a/pdf/xpdf/pdf-document.cc
+++ b/pdf/xpdf/pdf-document.cc
@@ -84,6 +84,7 @@ struct _PdfDocument
GDKSplashOutputDev *out;
PSOutputDev *ps_out;
PDFDoc *doc;
+ Links *links;
UnicodeMap *umap;
gboolean page_valid;
@@ -113,6 +114,21 @@ G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT,
pdf_document_find_iface_init);
});
+static void
+document_init_links (PdfDocument *pdf_document)
+{
+ Page *page;
+ Object obj;
+
+ if (pdf_document->links) {
+ delete pdf_document->links;
+ }
+ page = pdf_document->doc->getCatalog ()->getPage (pdf_document->page);
+ pdf_document->links = new Links (page->getAnnots (&obj),
+ pdf_document->doc->getCatalog ()->getBaseURI ());
+ obj.free ();
+}
+
static gboolean
document_validate_page (PdfDocument *pdf_document)
{
@@ -122,6 +138,8 @@ document_validate_page (PdfDocument *pdf_document)
72 * pdf_document->scale,
0, gTrue, gTrue);
+ document_init_links (pdf_document);
+
pdf_document->page_valid = TRUE;
/* Update the search results available to the app since
@@ -740,27 +758,12 @@ pdf_document_links_begin_read (EvDocumentLinks *document_links)
return (EvDocumentLinksIter *) iter;
}
-/* FIXME This returns a new object every time, probably we should cache it
- in the iter */
static EvLink *
-pdf_document_links_get_link (EvDocumentLinks *document_links,
- EvDocumentLinksIter *links_iter)
+build_link_from_action (PdfDocument *pdf_document,
+ LinkAction *link_action,
+ const char *title)
{
- PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
EvLink *link = NULL;
- LinksIter *iter = (LinksIter *)links_iter;
- OutlineItem *anItem;
- LinkAction *link_action;
- Unicode *link_title;
- const char *title;
-
- g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
- g_return_val_if_fail (iter != NULL, FALSE);
-
- anItem = (OutlineItem *)iter->items->get(iter->index);
- link_action = anItem->getAction ();
- link_title = anItem->getTitle ();
- title = unicode_to_char (anItem, pdf_document->umap);
if (link_action == NULL) {
link = ev_link_new_title (title);
@@ -808,9 +811,33 @@ pdf_document_links_get_link (EvDocumentLinks *document_links,
return link;
}
+/* FIXME This returns a new object every time, probably we should cache it
+ in the iter */
+static EvLink *
+pdf_document_links_get_link (EvDocumentLinks *document_links,
+ EvDocumentLinksIter *links_iter)
+{
+ PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
+ LinksIter *iter = (LinksIter *)links_iter;
+ OutlineItem *anItem;
+ LinkAction *link_action;
+ Unicode *link_title;
+ const char *title;
+
+ g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
+ g_return_val_if_fail (iter != NULL, FALSE);
+
+ anItem = (OutlineItem *)iter->items->get(iter->index);
+ link_action = anItem->getAction ();
+ link_title = anItem->getTitle ();
+ title = unicode_to_char (anItem, pdf_document->umap);
+
+ return build_link_from_action (pdf_document, link_action, title);
+}
+
static EvDocumentLinksIter *
pdf_document_links_get_child (EvDocumentLinks *document_links,
- EvDocumentLinksIter *links_iter)
+ EvDocumentLinksIter *links_iter)
{
LinksIter *iter = (LinksIter *)links_iter;
LinksIter *child_iter;
@@ -834,7 +861,7 @@ pdf_document_links_get_child (EvDocumentLinks *document_links,
static gboolean
pdf_document_links_next (EvDocumentLinks *document_links,
- EvDocumentLinksIter *links_iter)
+ EvDocumentLinksIter *links_iter)
{
LinksIter *iter = (LinksIter *) links_iter;
@@ -849,7 +876,7 @@ pdf_document_links_next (EvDocumentLinks *document_links,
static void
pdf_document_links_free_iter (EvDocumentLinks *document_links,
- EvDocumentLinksIter *iter)
+ EvDocumentLinksIter *iter)
{
g_return_if_fail (PDF_IS_DOCUMENT (document_links));
g_return_if_fail (iter != NULL);
@@ -863,6 +890,10 @@ pdf_document_finalize (GObject *object)
{
PdfDocument *pdf_document = PDF_DOCUMENT (object);
+ if (pdf_document->links) {
+ delete pdf_document->links;
+ }
+
if (pdf_document->umap) {
pdf_document->umap->decRefCnt ();
pdf_document->umap = NULL;
@@ -968,6 +999,20 @@ pdf_document_get_text (EvDocument *document, GdkRectangle *rect)
return text ? g_strdup (text) : NULL;
}
+static EvLink *
+pdf_document_get_link (EvDocument *document, int x, int y)
+{
+ PdfDocument *pdf_document = PDF_DOCUMENT (document);
+ LinkAction *action;
+
+ action = pdf_document->links->find (x, y);
+ if (action) {
+ return build_link_from_action (pdf_document, action, "");
+ } else {
+ return NULL;
+ }
+}
+
static void
pdf_document_get_property (GObject *object,
guint prop_id,
@@ -1005,6 +1050,7 @@ pdf_document_document_iface_init (EvDocumentIface *iface)
iface->load = pdf_document_load;
iface->save = pdf_document_save;
iface->get_text = pdf_document_get_text;
+ iface->get_link = pdf_document_get_link;
iface->get_n_pages = pdf_document_get_n_pages;
iface->set_page = pdf_document_set_page;
iface->get_page = pdf_document_get_page;
@@ -1144,8 +1190,6 @@ pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnail
the_page = pdf_document->doc->getCatalog ()->getPage (page + 1);
the_page->getThumb (&the_thumb);
-
-
if (!(the_thumb.isNull () || the_thumb.isNone())) {
/* Build the thumbnail object */
thumb = new Thumb(pdf_document->doc->getXRef (),