xref: /netbsd-src/external/gpl3/gdb.old/dist/gdb/tui/tui-command.c (revision d16b7486a53dcb8072b60ec6fcb4373a2d0c27b7)
1 /* Specific command window processing.
2 
3    Copyright (C) 1998-2020 Free Software Foundation, Inc.
4 
5    Contributed by Hewlett-Packard Company.
6 
7    This file is part of GDB.
8 
9    This program is free software; you can redistribute it and/or modify
10    it under the terms of the GNU General Public License as published by
11    the Free Software Foundation; either version 3 of the License, or
12    (at your option) any later version.
13 
14    This program is distributed in the hope that it will be useful,
15    but WITHOUT ANY WARRANTY; without even the implied warranty of
16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17    GNU General Public License for more details.
18 
19    You should have received a copy of the GNU General Public License
20    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
21 
22 #include "defs.h"
23 #include "tui/tui.h"
24 #include "tui/tui-data.h"
25 #include "tui/tui-win.h"
26 #include "tui/tui-io.h"
27 #include "tui/tui-command.h"
28 #include "tui/tui-wingeneral.h"
29 
30 #include "gdb_curses.h"
31 
32 /* See tui-command.h.  */
33 
34 int
35 tui_cmd_window::max_height () const
36 {
37   return tui_term_height () - 4;
38 }
39 
40 void
41 tui_cmd_window::resize (int height_, int width_, int origin_x, int origin_y)
42 {
43   width = width_;
44   height = height_;
45   x = origin_x;
46   y = origin_y;
47 
48   if (handle == nullptr)
49     make_window ();
50   else
51     {
52       /* Another reason we don't call the base class method here is
53 	 that for the command window in particular, we want to avoid
54 	 destroying the underlying handle.  We don't currently track
55 	 the contents of this window, and so have no way to re-render
56 	 it.  However we can at least move it and keep the old size if
57 	 wresize isn't available.  */
58 #ifdef HAVE_WRESIZE
59       wresize (handle.get (), height, width);
60 #endif
61       mvwin (handle.get (), y, x);
62       wmove (handle.get (), 0, 0);
63     }
64 }
65 
66 /* See tui-command.h.  */
67 
68 void
69 tui_refresh_cmd_win (void)
70 {
71   WINDOW *w = TUI_CMD_WIN->handle.get ();
72 
73   tui_wrefresh (w);
74 
75   /* FIXME: It's not clear why this is here.
76      It was present in the original tui_puts code and is kept in order to
77      not introduce some subtle breakage.  */
78   fflush (stdout);
79 }
80