+2019-06-25  Tom Tromey  <tom@tromey.com>
+
+       * tui/tui-win.c (make_invisible_and_set_new_height)
+       (make_visible_with_new_height): Call has_locator method.
+       * tui/tui-layout.c (show_source_disasm_command, show_data)
+       (show_source_or_disasm_and_command): Update for bool change.
+       * tui/tui-data.h (struct tui_source_info) <has_locator>: Now bool.
+       (tui_win_info) <has_locator>: New method.
+       (struct tui_source_window_base) <has_locator>: New method.
+       (tui_win_has_locator): Don't declare.
+       * tui/tui-data.c (tui_source_window_base::has_locator): Rename
+       from tui_win_has_locator.
+       (tui_source_window_base): Use false, not FALSE.
+
 2019-06-25  Tom Tromey  <tom@tromey.com>
 
        * tui/tui-data.h (tui_clear_win_detail): Don't declare.
 
   return (win_type > MAX_MAJOR_WINDOWS);
 }
 
-int
-tui_win_has_locator (struct tui_win_info *win_info)
+/* See tui-data.h.  */
+
+bool
+tui_source_window_base::has_locator () const
 {
-  return (win_info != NULL 
-         && win_info->detail.source_info.has_locator);
+  return detail.source_info.has_locator;
 }
 
 void
 {
   gdb_assert (type == SRC_WIN || type == DISASSEM_WIN);
   detail.source_info.execution_info = NULL;
-  detail.source_info.has_locator = FALSE;
+  detail.source_info.has_locator = false;
   detail.source_info.horizontal_offset = 0;
   detail.source_info.gdbarch = NULL;
   detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
 
 
 struct tui_source_info
 {
-  int has_locator;             /* Does locator belongs to this window?  */
+  /* Does the locator belong to this window?  */
+  bool has_locator;
   /* Execution information window.  */
   struct tui_gen_win_info *execution_info;
   int horizontal_offset;       /* Used for horizontal scroll.  */
   /* Clear the pertinent detail in the window.  */
   virtual void clear_detail () = 0;
 
+  /* Return true if this window has the locator.  */
+  virtual bool has_locator () const
+  {
+    return false;
+  }
+
   /* Methods to scroll the contents of this window.  Note that they
      are named with "_scroll" coming at the end because the more
      obvious "scroll_forward" is defined as a macro in term.h.  */
 public:
 
   void clear_detail () override;
+
+  /* Return true if this window has the locator.  */
+  bool has_locator () const override;
 };
 
 /* A TUI source window.  */
 
 extern int tui_win_is_source_type (enum tui_win_type win_type);
 extern int tui_win_is_auxillary (enum tui_win_type win_type);
-extern int tui_win_has_locator (struct tui_win_info *win_info);
 extern void tui_set_win_highlight (struct tui_win_info *win_info,
                                   int highlight);
 
 
                             0);
          tui_make_visible (&TUI_SRC_WIN->generic);
          tui_make_visible (TUI_SRC_WIN->detail.source_info.execution_info);
-         TUI_SRC_WIN->detail.source_info.has_locator = FALSE;;
+         TUI_SRC_WIN->detail.source_info.has_locator = false;
        }
 
       struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
                             tui_term_width (),
                             0,
                             (src_height + asm_height) - 1);
-         TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
+         TUI_DISASM_WIN->detail.source_info.has_locator = true;
          init_gen_win_info (&TUI_DISASM_WIN->generic,
                             TUI_DISASM_WIN->generic.type,
                             asm_height,
          tui_make_visible (&TUI_DISASM_WIN->generic);
          tui_make_visible (TUI_DISASM_WIN->detail.source_info.execution_info);
        }
-      TUI_SRC_WIN->detail.source_info.has_locator = FALSE;
-      TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
+      TUI_SRC_WIN->detail.source_info.has_locator = false;
+      TUI_DISASM_WIN->detail.source_info.has_locator = true;
       tui_make_visible (locator);
       tui_show_locator_content ();
       tui_show_source_content (TUI_DISASM_WIN);
                         0,
                         total_height - 1);
     }
-  tui_win_list[win_type]->detail.source_info.has_locator = TRUE;
+  tui_win_list[win_type]->detail.source_info.has_locator = true;
   tui_make_visible (locator);
   tui_show_locator_content ();
   tui_add_to_source_windows (tui_win_list[win_type]);
                             tui_term_width (),
                             0,
                             src_height - 1);
-         (*win_info_ptr)->detail.source_info.has_locator = TRUE;
+         (*win_info_ptr)->detail.source_info.has_locator = true;
          init_gen_win_info (&(*win_info_ptr)->generic,
                             (*win_info_ptr)->generic.type,
                             src_height - 1,
        }
       if ((*win_info_ptr) != NULL)
        {
-         (*win_info_ptr)->detail.source_info.has_locator = TRUE;
+         (*win_info_ptr)->detail.source_info.has_locator = true;
          tui_make_visible (locator);
          tui_show_locator_content ();
          tui_show_source_content (*win_info_ptr);
 
       if (win_info != TUI_CMD_WIN)
        gen_win_info->viewport_height--;
 
-      if (tui_win_has_locator (win_info))
+      if (win_info->has_locator ())
        {
          gen_win_info = tui_locator_win_info_ptr ();
          tui_make_invisible (gen_win_info);
            }
          tui_update_source_window (win_info, gdbarch, s, line, TRUE);
        }
-      if (tui_win_has_locator (win_info))
+      if (win_info->has_locator ())
        {
          tui_make_visible (tui_locator_win_info_ptr ());
          tui_show_locator_content ();