Introduce set_new_height method

This introduces tui_win_info::set_new_height and implements it in the
subclasses as appropriate.  This removes another switch on the window
type.

gdb/ChangeLog
2019-06-25  Tom Tromey  <tom@tromey.com>

	* tui/tui-win.c (tui_source_window_base::set_new_height)
	(tui_data_window::set_new_height): New methods.
	(make_invisible_and_set_new_height): Call set_new_height method.
	* tui/tui-data.h (struct tui_win_info)
	(struct tui_source_window_base, struct tui_data_window)
	<set_new_height>: New method.

1 files changed, 10 insertions, 0 deletions

diff --git a/gdb/tui/tui-data.h b/gdb/tui/tui-data.h
index e45c9fa..07ec977 100644
--- a/gdb/tui/tui-data.h
+++ b/gdb/tui/tui-data.h
@@ -267,6 +267,12 @@ public:
   {
   }
 
+  /* Called after a TUI window is given a new height; this updates any
+     related auxiliary windows.  */
+  virtual void set_new_height (int height)
+  {
+  }
+
   /* 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.  */
@@ -318,6 +324,8 @@ public:
   /* Set the location of the execution point.  */
   void set_is_exec_point_at (struct tui_line_or_address l);
 
+  void set_new_height (int height) override;
+
   /* Does the locator belong to this window?  */
   bool m_has_locator = false;
   /* Execution information window.  */
@@ -380,6 +388,8 @@ struct tui_data_window : public tui_win_info
   void clear_detail () override;
   void refresh_all () override;
 
+  void set_new_height (int height) override;
+
   /* Start of data display content.  */
   tui_win_content data_content = NULL;
   int data_content_count = 0;