[evince] libview: Use EvPixbufCache to find selection region

[Carlos Garcia Campos <carlosgc src gnome org>]

commit abedcbdf9fe1a8477ea571974a537deb1fb4a941
Author: Jason Crain <jason aquaticape us>
Date:   Mon Jun 17 23:09:43 2013 -0500

    libview: Use EvPixbufCache to find selection region
    
    Using view->selection_info.selections is inaccurate if the zoom
    changes, causing drag and drop of selected text to fail.  This changes
    location_in_selected_text function to use the more accurate
    ev_pixbuf_cache_get_selection_region to find the selection region.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=702406

 libview/ev-view.c |   28 ++++++++++++----------------
 1 files changed, 12 insertions(+), 16 deletions(-)
---
diff --git a/libview/ev-view.c b/libview/ev-view.c
index d0928b4..984ef61 100644
--- a/libview/ev-view.c
+++ b/libview/ev-view.c
@@ -1467,25 +1467,21 @@ location_in_selected_text (EvView  *view,
                           gdouble  x,
                           gdouble  y)
 {
+       cairo_region_t *region;
        gint page = -1;
        gint x_offset = 0, y_offset = 0;
-       EvViewSelection *selection;
-       GList *l = NULL;
 
-       for (l = view->selection_info.selections; l != NULL; l = l->next) {
-               selection = (EvViewSelection *)l->data;
-               
-               find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
-               
-               if (page != selection->page)
-                       continue;
-               
-               if (selection->covered_region &&
-                   cairo_region_contains_point (selection->covered_region, x_offset, y_offset))
-                       return TRUE;
-       }
+       find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
 
-       return FALSE;
+       if (page == -1)
+               return FALSE;
+
+       region = ev_pixbuf_cache_get_selection_region (view->pixbuf_cache, page, view->scale);
+
+       if (region)
+               return cairo_region_contains_point (region, x_offset, y_offset);
+       else
+               return FALSE;
 }
 
 static gboolean