[evince/gpoo/fix-hover-for-highlight-annotations: 1/3] document: ev_mapping_list_get_all

[Germán Poo-Caamaño <gpoo src gnome org>]

commit 29d993e5c6f29a6411e658e1413449bee1d7af61
Author: Giselle Reis <gisellemnr src gnome org>
Date:   Mon Aug 18 20:20:01 2014 +0200

    document: ev_mapping_list_get_all
    
    Implements a function that returns all EvMappings
    at a certain point. Needed for annotations
    (especially text markups), whose bounding boxes
    might overlap.
    
    Step to address issue #696
    https://bugzilla.gnome.org/show_bug.cgi?id=769133

 libdocument/ev-mapping-list.c | 41 +++++++++++++++++++++++++++++++++++++++++
 libdocument/ev-mapping-list.h |  3 +++
 2 files changed, 44 insertions(+)
---
diff --git a/libdocument/ev-mapping-list.c b/libdocument/ev-mapping-list.c
index 3efd42e0..cf0de332 100644
--- a/libdocument/ev-mapping-list.c
+++ b/libdocument/ev-mapping-list.c
@@ -162,6 +162,47 @@ ev_mapping_list_get (EvMappingList *mapping_list,
        return found;
 }
 
+/**
+ * ev_mapping_list_get_all:
+ * @mapping_list: an #EvMappingList
+ * @x: X coordinate
+ * @y: Y coordinate
+ *
+ * Returns: (transfer none): a #GArray of all the #EvMapping in the list at coordinates (x, y)
+ *
+ * Since: 3.36
+ */
+GArray *
+ev_mapping_list_get_all (EvMappingList *mapping_list,
+                        gdouble        x,
+                        gdouble        y)
+{
+        g_return_val_if_fail (mapping_list != NULL, NULL);
+
+       GList  *list;
+       GArray *mapping_array;
+
+       mapping_array = g_array_new (FALSE, FALSE, sizeof (EvMapping));
+
+       for (list = mapping_list->list; list; list = list->next) {
+               EvMapping *mapping = list->data;
+
+               if ((x >= mapping->area.x1) &&
+                   (y >= mapping->area.y1) &&
+                   (x <= mapping->area.x2) &&
+                   (y <= mapping->area.y2)) {
+                       g_array_append_val (mapping_array, *mapping);
+               }
+       }
+       g_list_free (list);
+
+       if (mapping_array->len > 0) return mapping_array;
+       else {
+               g_array_unref (mapping_array);
+               return NULL;
+       }
+}
+
 /**
  * ev_mapping_list_get_data:
  * @mapping_list: an #EvMappingList
diff --git a/libdocument/ev-mapping-list.h b/libdocument/ev-mapping-list.h
index dcbb50b7..35c25179 100644
--- a/libdocument/ev-mapping-list.h
+++ b/libdocument/ev-mapping-list.h
@@ -52,6 +52,9 @@ EvMapping     *ev_mapping_list_find_custom (EvMappingList *mapping_list,
 EvMapping     *ev_mapping_list_get         (EvMappingList *mapping_list,
                                            gdouble        x,
                                            gdouble        y);
+GArray        *ev_mapping_list_get_all     (EvMappingList *mapping_list,
+                                           gdouble        x,
+                                           gdouble        y);
 gpointer       ev_mapping_list_get_data    (EvMappingList *mapping_list,
                                            gdouble        x,
                                            gdouble        y);