diff options
Diffstat (limited to 'gtk/gtktreednd.c')
| -rw-r--r-- | gtk/gtktreednd.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/gtk/gtktreednd.c b/gtk/gtktreednd.c index f798022c25..bdf9e4abde 100644 --- a/gtk/gtktreednd.c +++ b/gtk/gtktreednd.c @@ -155,6 +155,38 @@ gtk_tree_drag_dest_drag_data_received (GtkTreeDragDest *drag_dest, return (* iface->drag_data_received) (drag_dest, dest, selection_data); } + +/** + * gtk_tree_drag_dest_drop_possible: + * @drag_dest: a #GtkTreeDragDest + * @src_model: #GtkTreeModel being dragged from + * @src_path: row being dragged + * @dest_path: destination row + * + * Determines whether a drop is possible before the given @dest_path, + * at the same depth as @dest_path. i.e., can we drop @src_model such + * that it now resides at @dest_path. @dest_path does not have to + * exist; the return value will almost certainly be %FALSE if the + * parent of @dest_path doesn't exist, though. + * + * Return value: %TRUE if a drop is possible before @dest_path + **/ +gboolean +gtk_tree_drag_dest_row_drop_possible (GtkTreeDragDest *drag_dest, + GtkTreeModel *src_model, + GtkTreePath *src_path, + GtkTreePath *dest_path) +{ + GtkTreeDragDestIface *iface = GTK_TREE_DRAG_DEST_GET_IFACE (drag_dest); + + g_return_val_if_fail (iface->row_drop_possible != NULL, FALSE); + g_return_val_if_fail (GTK_IS_TREE_MODEL (src_model), FALSE); + g_return_val_if_fail (src_path != NULL, FALSE); + g_return_val_if_fail (dest_path != NULL, FALSE); + + return (* iface->row_drop_possible) (drag_dest, src_model, src_path, dest_path); +} + typedef struct _TreeRowData TreeRowData; struct _TreeRowData |