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 #ifdef HAVE_NCURSES_H
  33 #include <ncurses.h>
  34 #else
  35 #ifdef HAVE_CURSES_H
  36 #include <curses.h>
  37 #endif
  38 #endif
  39
  40
  41 /*****************************************
  42 ** STATIC LOCAL FUNCTIONS FORWARD DECLS    **
  43 ******************************************/
  44
  45
  46
  47 /*****************************************
  48 ** PUBLIC FUNCTIONS                        **
  49 ******************************************/
  50
  51 /* Dispatch the correct tui function based upon the control character.   */
  52 unsigned int
  53 tui_dispatch_ctrl_char (unsigned int ch)
  54 {
  55   struct tui_win_info *win_info = tui_win_with_focus ();
  56   WINDOW *w = TUI_CMD_WIN->generic.handle;
  57
  58   /*
  59      ** If the command window has the logical focus, or no-one does
  60      ** assume it is the command window; in this case, pass the
  61      ** character on through and do nothing here.
  62    */
  63   if (win_info == NULL || win_info == TUI_CMD_WIN)
  64     return ch;
  65   else
  66     {
  67       unsigned int c = 0, ch_copy = ch;
  68       register int i;
  69       char *term;
  70
  71       /* If this is an xterm, page next/prev keys aren't returned
  72          ** by keypad as a single char, so we must handle them here.
  73          ** Seems like a bug in the curses library?
  74        */
  75       term = (char *) getenv ("TERM");
  76       for (i = 0; (term && term[i]); i++)
  77         term[i] = toupper (term[i]);
  78       if ((strcmp (term, "XTERM") == 0) && key_is_start_sequence (ch))
  79         {
  80           unsigned int page_ch = 0;
  81           unsigned int tmp_char;
  82
  83           tmp_char = 0;
  84           while (!key_is_end_sequence (tmp_char))
  85             {
  86               tmp_char = (int) wgetch (w);
  87               if (tmp_char == ERR)
  88                 {
  89                   return ch;
  90                 }
  91               if (!tmp_char)
  92                 break;
  93               if (tmp_char == 53)
  94                 page_ch = KEY_PPAGE;
  95               else if (tmp_char == 54)
  96                 page_ch = KEY_NPAGE;
  97               else
  98                 {
  99                   return 0;
 100                 }
 101             }
 102           ch_copy = page_ch;
 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           tui_refresh_all_win ();
 129           break;
 130         default:
 131           c = ch_copy;
 132           break;
 133         }
 134       return c;
 135     }
 136 }