gdb/tui/tui-command.c

   1 /* Specific command window processing.
   2
   3    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007
   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 2 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, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor,
  23    Boston, MA 02110-1301, USA.  */
  24
  25 #include "defs.h"
  26 #include <ctype.h>
  27 #include "tui/tui.h"
  28 #include "tui/tui-data.h"
  29 #include "tui/tui-win.h"
  30 #include "tui/tui-io.h"
  31
  32 #include "gdb_curses.h"
  33 #include "gdb_string.h"
  34
  35
  36 /*****************************************
  37 ** STATIC LOCAL FUNCTIONS FORWARD DECLS    **
  38 ******************************************/
  39
  40
  41
  42 /*****************************************
  43 ** PUBLIC FUNCTIONS                        **
  44 ******************************************/
  45
  46 /* Dispatch the correct tui function based upon the control
  47    character.  */
  48 unsigned int
  49 tui_dispatch_ctrl_char (unsigned int ch)
  50 {
  51   struct tui_win_info *win_info = tui_win_with_focus ();
  52
  53   /* Handle the CTRL-L refresh for each window.  */
  54   if (ch == '\f')
  55     tui_refresh_all_win ();
  56
  57   /* If the command window has the logical focus, or no-one does
  58      assume it is the command window; in this case, pass the character
  59      on through and do nothing here.  */
  60   if (win_info == NULL || win_info == TUI_CMD_WIN)
  61     return ch;
  62   else
  63     {
  64       unsigned int c = 0, ch_copy = ch;
  65       int i;
  66       char *term;
  67
  68       /* If this is an xterm, page next/prev keys aren't returned by
  69          keypad as a single char, so we must handle them here.  Seems
  70          like a bug in the curses library?  */
  71       term = (char *) getenv ("TERM");
  72       if (term)
  73         {
  74           for (i = 0; term[i]; i++)
  75             term[i] = toupper (term[i]);
  76           if ((strcmp (term, "XTERM") == 0) && key_is_start_sequence (ch))
  77             {
  78               unsigned int page_ch = 0;
  79               unsigned int tmp_char;
  80               WINDOW *w = TUI_CMD_WIN->generic.handle;
  81
  82               tmp_char = 0;
  83               while (!key_is_end_sequence (tmp_char))
  84                 {
  85                   tmp_char = (int) wgetch (w);
  86                   if (tmp_char == ERR)
  87                     {
  88                       return ch;
  89                     }
  90                   if (!tmp_char)
  91                     break;
  92                   if (tmp_char == 53)
  93                     page_ch = KEY_PPAGE;
  94                   else if (tmp_char == 54)
  95                     page_ch = KEY_NPAGE;
  96                   else
  97                     {
  98                       return 0;
  99                     }
 100                 }
 101               ch_copy = page_ch;
 102             }
 103         }
 104
 105       switch (ch_copy)
 106         {
 107         case KEY_NPAGE:
 108           tui_scroll_forward (win_info, 0);
 109           break;
 110         case KEY_PPAGE:
 111           tui_scroll_backward (win_info, 0);
 112           break;
 113         case KEY_DOWN:
 114         case KEY_SF:
 115           tui_scroll_forward (win_info, 1);
 116           break;
 117         case KEY_UP:
 118         case KEY_SR:
 119           tui_scroll_backward (win_info, 1);
 120           break;
 121         case KEY_RIGHT:
 122           tui_scroll_left (win_info, 1);
 123           break;
 124         case KEY_LEFT:
 125           tui_scroll_right (win_info, 1);
 126           break;
 127         case '\f':
 128           break;
 129         default:
 130           c = ch_copy;
 131           break;
 132         }
 133       return c;
 134     }
 135 }