[gthumb/gthumb-3-4] find duplicates: more responsive when the duplicate list is huge

[Paolo Bacchilega <paobac src gnome org>]

commit 561d74fd923696cc87e5c4830e65fbc7aac9c4bb
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Wed Dec 23 20:03:30 2015 +0100

    find duplicates: more responsive when the duplicate list is huge

 extensions/find_duplicates/gth-find-duplicates.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/extensions/find_duplicates/gth-find-duplicates.c 
b/extensions/find_duplicates/gth-find-duplicates.c
index 8cd01db..64fb30a 100644
--- a/extensions/find_duplicates/gth-find-duplicates.c
+++ b/extensions/find_duplicates/gth-find-duplicates.c
@@ -371,6 +371,7 @@ duplicates_list_view_selection_changed_cb (GthFileView *fileview,
        GList             *file_data_list;
        GHashTable        *selected_files;
        GtkTreeModel      *files_treemodel;
+       GtkTreeModel      *files_treemodelfilter;
        GtkTreeIter        iter;
        GList             *scan;
 
@@ -394,6 +395,11 @@ duplicates_list_view_selection_changed_cb (GthFileView *fileview,
        }
 
        files_treemodel = GTK_TREE_MODEL (GET_WIDGET ("files_liststore"));
+
+       files_treemodelfilter = GTK_TREE_MODEL (GET_WIDGET ("files_treemodelfilter"));
+       g_object_ref (files_treemodelfilter);
+       gtk_tree_view_set_model (GTK_TREE_VIEW (GET_WIDGET ("files_treeview")), NULL); /* to avoid excessive 
recomputation */
+
        if (gtk_tree_model_get_iter_first (files_treemodel, &iter)) {
                do {
                        GthFileData *file_data;
@@ -410,6 +416,9 @@ duplicates_list_view_selection_changed_cb (GthFileView *fileview,
                while (gtk_tree_model_iter_next (files_treemodel, &iter));
        }
 
+       gtk_tree_view_set_model (GTK_TREE_VIEW (GET_WIDGET ("files_treeview")), files_treemodelfilter);
+       g_object_unref (files_treemodelfilter);
+
        update_file_list_sensitivity (self);
        update_file_list_selection_info (self);