Add capability of custom sorts to divelist columns

[ext/subsurface.git] / display-gtk.h

diff --git a/display-gtk.h b/display-gtk.h
index d5ffcb246de00702985882648e3372184745d7ae..8ca5a450e35002bcc2fa708c11402a7c7c165a3b 100644 (file)
--- a/display-gtk.h
+++ b/display-gtk.h
@@ -57,6 +57,11 @@ typedef void (*data_func_t)(GtkTreeViewColumn *col,
                            GtkTreeIter *iter,
                            gpointer data);
 
+typedef gint (*sort_func_t)(GtkTreeModel *model,
+                           GtkTreeIter *a,
+                           GtkTreeIter *b,
+                           gpointer user_data);
+
 #define ALIGN_LEFT 1
 #define ALIGN_RIGHT 2
 #define INVISIBLE 4