gdb/tui/tui-command.c

   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 }