Make the change of tab size in TUI mode effective immediately

gdb/ChangeLog:
2015-01-16  Eli Zaretskii  <eliz@gnu.org>

    * tui/tui-win.c (tui_set_tab_width_command): Delete and
    recreate the source and the disassembly windows, to show the
    effect of the changed tab size immediately.

2 files changed, 24 insertions, 1 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index ae82f49..661f9b6 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -2,6 +2,9 @@
 
 	* tui/tui-win.c (tui_scroll_left_command, tui_scroll_right_command):
 	Doc fix.
+	(tui_set_tab_width_command): Delete and recreate the source and
+	the disassembly windows, to show the effect of the changed tab
+	size immediately.
 
 	* tui/tui-data.h (LINE_PREFIX): Make shorter
 	(MAX_PID_WIDTH): Enlarge from 14 to 19, to leave enough space for
diff --git a/gdb/tui/tui-win.c b/gdb/tui/tui-win.c
index 0d155fb..96fa801 100644
--- a/gdb/tui/tui-win.c
+++ b/gdb/tui/tui-win.c
@@ -1002,7 +1002,27 @@ tui_set_tab_width_command (char *arg, int from_tty)
 
       ts = atoi (arg);
       if (ts > 0)
-	tui_set_default_tab_len (ts);
+	{
+	  tui_set_default_tab_len (ts);
+	  /* We don't really change the height of any windows, but
+	     calling these 2 functions causes a complete regeneration
+	     and redisplay of the window's contents, which will take
+	     the new tab width into account.  */
+	  if (tui_win_list[SRC_WIN]
+	      && tui_win_list[SRC_WIN]->generic.is_visible)
+	    {
+	      make_invisible_and_set_new_height (TUI_SRC_WIN,
+						 TUI_SRC_WIN->generic.height);
+	      make_visible_with_new_height (TUI_SRC_WIN);
+	    }
+	  if (tui_win_list[DISASSEM_WIN]
+	      && tui_win_list[DISASSEM_WIN]->generic.is_visible)
+	    {
+	      make_invisible_and_set_new_height (TUI_DISASM_WIN,
+						 TUI_DISASM_WIN->generic.height);
+	      make_visible_with_new_height (TUI_DISASM_WIN);
+	    }
+	}
       else
 	warning (_("Tab widths greater than 0 must be specified."));
     }