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 #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 character.   */
  47 unsigned int
  48 tui_dispatch_ctrl_char (unsigned int ch)
  49 {
  50   struct tui_win_info *win_info = tui_win_with_focus ();
  51   WINDOW *w = TUI_CMD_WIN->generic.handle;
  52
  53   /*
  54      ** If the command window has the logical focus, or no-one does
  55      ** assume it is the command window; in this case, pass the
  56      ** character on through and do nothing here.
  57    */
  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
  67          ** by keypad as a single char, so we must handle them here.
  68          ** Seems like a bug in the curses library?
  69        */
  70       term = (char *) getenv ("TERM");
  71       if (term)
  72         {
  73           for (i = 0; term[i]; i++)
  74             term[i] = toupper (term[i]);
  75           if ((strcmp (term, "XTERM") == 0) && key_is_start_sequence (ch))
  76             {
  77               unsigned int page_ch = 0;
  78               unsigned int tmp_char;
  79
  80               tmp_char = 0;
  81               while (!key_is_end_sequence (tmp_char))
  82                 {
  83                   tmp_char = (int) wgetch (w);
  84                   if (tmp_char == ERR)
  85                     {
  86                       return ch;
  87                     }
  88                   if (!tmp_char)
  89                     break;
  90                   if (tmp_char == 53)
  91                     page_ch = KEY_PPAGE;
  92                   else if (tmp_char == 54)
  93                     page_ch = KEY_NPAGE;
  94                   else
  95                     {
  96                       return 0;
  97                     }
  98                 }
  99               ch_copy = page_ch;
 100             }
 101         }
 102
 103       switch (ch_copy)
 104         {
 105         case KEY_NPAGE:
 106           tui_scroll_forward (win_info, 0);
 107           break;
 108         case KEY_PPAGE:
 109           tui_scroll_backward (win_info, 0);
 110           break;
 111         case KEY_DOWN:
 112         case KEY_SF:
 113           tui_scroll_forward (win_info, 1);
 114           break;
 115         case KEY_UP:
 116         case KEY_SR:
 117           tui_scroll_backward (win_info, 1);
 118           break;
 119         case KEY_RIGHT:
 120           tui_scroll_left (win_info, 1);
 121           break;
 122         case KEY_LEFT:
 123           tui_scroll_right (win_info, 1);
 124           break;
 125         case '\f':
 126           tui_refresh_all_win ();
 127           break;
 128         default:
 129           c = ch_copy;
 130           break;
 131         }
 132       return c;
 133     }
 134 }