gdb/tui/tui-command.c

   1 /* Specific command window processing.
   2
   3    Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation,
   4    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 /*
  52    ** tuiDispatchCtrlChar().
  53    **        Dispatch the correct tui function based upon the control character.
  54  */
  55 unsigned int
  56 tuiDispatchCtrlChar (unsigned int ch)
  57 {
  58   TuiWinInfoPtr winInfo = tuiWinWithFocus ();
  59   WINDOW *w = cmdWin->generic.handle;
  60
  61   /*
  62      ** If the command window has the logical focus, or no-one does
  63      ** assume it is the command window; in this case, pass the
  64      ** character on through and do nothing here.
  65    */
  66   if (winInfo == (TuiWinInfoPtr) NULL || winInfo == cmdWin)
  67     return ch;
  68   else
  69     {
  70       unsigned int c = 0, chCopy = ch;
  71       register int i;
  72       char *term;
  73
  74       /* If this is an xterm, page next/prev keys aren't returned
  75          ** by keypad as a single char, so we must handle them here.
  76          ** Seems like a bug in the curses library?
  77        */
  78       term = (char *) getenv ("TERM");
  79       for (i = 0; (term && term[i]); i++)
  80         term[i] = toupper (term[i]);
  81       if ((strcmp (term, "XTERM") == 0) && m_isStartSequence (ch))
  82         {
  83           unsigned int pageCh = 0, tmpChar;
  84
  85           tmpChar = 0;
  86           while (!m_isEndSequence (tmpChar))
  87             {
  88               tmpChar = (int) wgetch (w);
  89               if (tmpChar == ERR)
  90                 {
  91                   return ch;
  92                 }
  93               if (!tmpChar)
  94                 break;
  95               if (tmpChar == 53)
  96                 pageCh = KEY_PPAGE;
  97               else if (tmpChar == 54)
  98                 pageCh = KEY_NPAGE;
  99               else
 100                 {
 101                   return 0;
 102                 }
 103             }
 104           chCopy = pageCh;
 105         }
 106
 107       switch (chCopy)
 108         {
 109         case KEY_NPAGE:
 110           tuiScrollForward (winInfo, 0);
 111           break;
 112         case KEY_PPAGE:
 113           tuiScrollBackward (winInfo, 0);
 114           break;
 115         case KEY_DOWN:
 116         case KEY_SF:
 117           tuiScrollForward (winInfo, 1);
 118           break;
 119         case KEY_UP:
 120         case KEY_SR:
 121           tuiScrollBackward (winInfo, 1);
 122           break;
 123         case KEY_RIGHT:
 124           tuiScrollLeft (winInfo, 1);
 125           break;
 126         case KEY_LEFT:
 127           tuiScrollRight (winInfo, 1);
 128           break;
 129         case '\f':
 130           tuiRefreshAll ();
 131           break;
 132         default:
 133           c = chCopy;
 134           break;
 135         }
 136       return c;
 137     }
 138 }