gdb/tui/tui-command.c

   1 /* Specific command window processing.
   2
   3    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008
   4    Free Software Foundation, Inc.
   5
   6    Contributed by Hewlett-Packard Company.
   7
   8    This file is part of GDB.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  22
  23 #include "defs.h"
  24 #include <ctype.h>
  25 #include "tui/tui.h"
  26 #include "tui/tui-data.h"
  27 #include "tui/tui-win.h"
  28 #include "tui/tui-io.h"
  29
  30 #include "gdb_curses.h"
  31 #include "gdb_string.h"
  32
  33
  34 /*****************************************
  35 ** STATIC LOCAL FUNCTIONS FORWARD DECLS    **
  36 ******************************************/
  37
  38
  39
  40 /*****************************************
  41 ** PUBLIC FUNCTIONS                        **
  42 ******************************************/
  43
  44 /* Dispatch the correct tui function based upon the control
  45    character.  */
  46 unsigned int
  47 tui_dispatch_ctrl_char (unsigned int ch)
  48 {
  49   struct tui_win_info *win_info = tui_win_with_focus ();
  50
  51   /* Handle the CTRL-L refresh for each window.  */
  52   if (ch == '\f')
  53     tui_refresh_all_win ();
  54
  55   /* If the command window has the logical focus, or no-one does
  56      assume it is the command window; in this case, pass the character
  57      on through and do nothing here.  */
  58   if (win_info == NULL || win_info == TUI_CMD_WIN)
  59     return ch;
  60   else
  61     {
  62       unsigned int c = 0, ch_copy = ch;
  63       int i;
  64       char *term;
  65
  66       /* If this is an xterm, page next/prev keys aren't returned by
  67          keypad as a single char, so we must handle them here.  Seems
  68          like a bug in the curses library?  */
  69       term = (char *) getenv ("TERM");
  70       if (term)
  71         {
  72           for (i = 0; term[i]; i++)
  73             term[i] = toupper (term[i]);
  74           if ((strcmp (term, "XTERM") == 0)
  75               && key_is_start_sequence (ch))
  76             {
  77               unsigned int page_ch = 0;
  78               unsigned int tmp_char;
  79               WINDOW *w = TUI_CMD_WIN->generic.handle;
  80
  81               tmp_char = 0;
  82               while (!key_is_end_sequence (tmp_char))
  83                 {
  84                   tmp_char = (int) wgetch (w);
  85                   if (tmp_char == ERR)
  86                     {
  87                       return ch;
  88                     }
  89                   if (!tmp_char)
  90                     break;
  91                   if (tmp_char == 53)
  92                     page_ch = KEY_PPAGE;
  93                   else if (tmp_char == 54)
  94                     page_ch = KEY_NPAGE;
  95                   else
  96                     {
  97                       return 0;
  98                     }
  99                 }
 100               ch_copy = page_ch;
 101             }
 102         }
 103
 104       switch (ch_copy)
 105         {
 106         case KEY_NPAGE:
 107           tui_scroll_forward (win_info, 0);
 108           break;
 109         case KEY_PPAGE:
 110           tui_scroll_backward (win_info, 0);
 111           break;
 112         case KEY_DOWN:
 113         case KEY_SF:
 114           tui_scroll_forward (win_info, 1);
 115           break;
 116         case KEY_UP:
 117         case KEY_SR:
 118           tui_scroll_backward (win_info, 1);
 119           break;
 120         case KEY_RIGHT:
 121           tui_scroll_left (win_info, 1);
 122           break;
 123         case KEY_LEFT:
 124           tui_scroll_right (win_info, 1);
 125           break;
 126         case '\f':
 127           break;
 128         default:
 129           c = ch_copy;
 130           break;
 131         }
 132       return c;
 133     }
 134 }