Sync OpenBSD patchset 1084:

Add a layout history which can be stepped through with select-layout -u
and -U commands (bound to 'u' and 'U' by default).

1 files changed, 15 insertions, 1 deletions

diff --git a/tmux.h b/tmux.h
index 077200ae..d58166af 100644
--- a/tmux.h
+++ b/tmux.h
@@ -847,6 +847,13 @@ struct window_pane {
 TAILQ_HEAD(window_panes, window_pane);
 RB_HEAD(window_pane_tree, window_pane);
 
+/* Window last layout. */
+struct last_layout {
+	char	*layout;
+
+	TAILQ_ENTRY(last_layout) entry;
+};
+
 /* Window structure. */
 struct window {
 	u_int		 id;
@@ -860,6 +867,9 @@ struct window {
 
 	int		 lastlayout;
 	struct layout_cell *layout_root;
+	TAILQ_HEAD(last_layouts, last_layout) layout_list;
+	u_int		 layout_list_size;
+	struct last_layout *layout_list_last;
 
 	u_int		 sx;
 	u_int		 sy;
@@ -1994,7 +2004,8 @@ u_int		 layout_count_cells(struct layout_cell *);
 struct layout_cell *layout_create_cell(struct layout_cell *);
 void		 layout_free_cell(struct layout_cell *);
 void		 layout_print_cell(struct layout_cell *, const char *, u_int);
-void		 layout_destroy_cell(struct layout_cell *, struct layout_cell **);
+void		 layout_destroy_cell(
+		     struct layout_cell *, struct layout_cell **);
 void		 layout_set_size(
 		     struct layout_cell *, u_int, u_int, u_int, u_int);
 void		 layout_make_leaf(
@@ -2016,6 +2027,9 @@ void		 layout_assign_pane(struct layout_cell *, struct window_pane *);
 struct layout_cell *layout_split_pane(
 		     struct window_pane *, enum layout_type, int, int);
 void		 layout_close_pane(struct window_pane *);
+void		 layout_list_add(struct window *);
+const char	*layout_list_redo(struct window *);
+const char	*layout_list_undo(struct window *);
 
 /* layout-custom.c */
 char		*layout_dump(struct window *);