gdb/tui/tui-command.c

   1 /* Specific command window processing.
   2
   3    Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
   4    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., 59 Temple Place - Suite 330,
  23    Boston, MA 02111-1307, 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
  34
  35 /*****************************************
  36 ** STATIC LOCAL FUNCTIONS FORWARD DECLS    **
  37 ******************************************/
  38
  39
  40
  41 /*****************************************
  42 ** PUBLIC FUNCTIONS                        **
  43 ******************************************/
  44
  45 /* Dispatch the correct tui function based upon the control 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   WINDOW *w = TUI_CMD_WIN->generic.handle;
  51
  52   /*
  53      ** If the command window has the logical focus, or no-one does
  54      ** assume it is the command window; in this case, pass the
  55      ** character on through and do nothing here.
  56    */
  57   if (win_info == NULL || win_info == TUI_CMD_WIN)
  58     return ch;
  59   else
  60     {
  61       unsigned int c = 0, ch_copy = ch;
  62       int i;
  63       char *term;
  64
  65       /* If this is an xterm, page next/prev keys aren't returned
  66          ** by keypad as a single char, so we must handle them here.
  67          ** Seems like a bug in the curses library?
  68        */
  69       term = (char *) getenv ("TERM");
  70       for (i = 0; (term && term[i]); i++)
  71         term[i] = toupper (term[i]);
  72       if ((strcmp (term, "XTERM") == 0) && key_is_start_sequence (ch))
  73         {
  74           unsigned int page_ch = 0;
  75           unsigned int tmp_char;
  76
  77           tmp_char = 0;
  78           while (!key_is_end_sequence (tmp_char))
  79             {
  80               tmp_char = (int) wgetch (w);
  81               if (tmp_char == ERR)
  82                 {
  83                   return ch;
  84                 }
  85               if (!tmp_char)
  86                 break;
  87               if (tmp_char == 53)
  88                 page_ch = KEY_PPAGE;
  89               else if (tmp_char == 54)
  90                 page_ch = KEY_NPAGE;
  91               else
  92                 {
  93                   return 0;
  94                 }
  95             }
  96           ch_copy = page_ch;
  97         }
  98
  99       switch (ch_copy)
 100         {
 101         case KEY_NPAGE:
 102           tui_scroll_forward (win_info, 0);
 103           break;
 104         case KEY_PPAGE:
 105           tui_scroll_backward (win_info, 0);
 106           break;
 107         case KEY_DOWN:
 108         case KEY_SF:
 109           tui_scroll_forward (win_info, 1);
 110           break;
 111         case KEY_UP:
 112         case KEY_SR:
 113           tui_scroll_backward (win_info, 1);
 114           break;
 115         case KEY_RIGHT:
 116           tui_scroll_left (win_info, 1);
 117           break;
 118         case KEY_LEFT:
 119           tui_scroll_right (win_info, 1);
 120           break;
 121         case '\f':
 122           tui_refresh_all_win ();
 123           break;
 124         default:
 125           c = ch_copy;
 126           break;
 127         }
 128       return c;
 129     }
 130 }