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, chCopy = 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 pageCh = 0, tmpChar;
  81
  82           tmpChar = 0;
  83           while (!key_is_end_sequence (tmpChar))
  84             {
  85               tmpChar = (int) wgetch (w);
  86               if (tmpChar == ERR)
  87                 {
  88                   return ch;
  89                 }
  90               if (!tmpChar)
  91                 break;
  92               if (tmpChar == 53)
  93                 pageCh = KEY_PPAGE;
  94               else if (tmpChar == 54)
  95                 pageCh = KEY_NPAGE;
  96               else
  97                 {
  98                   return 0;
  99                 }
 100             }
 101           chCopy = pageCh;
 102         }
 103
 104       switch (chCopy)
 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           tui_refresh_all_win ();
 128           break;
 129         default:
 130           c = chCopy;
 131           break;
 132         }
 133       return c;
 134     }
 135 }