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/*
* Authors: Hadi Bargi Rangin bargi@dots.physics.orst.edu
* Bill Barry barryb@dots.physics.orst.edu
* Randy Lundquist randyl@dots.physics.orst.edu
*
* Modifications Copyright (c) 1995 by
* Science Access Project, Oregon State University.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program (see the file COPYING); if not, see
* https://www.gnu.org/licenses/, or contact Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*
****************************************************************
* $Id$ GNU
*/
#ifdef HAVE_BRAILLE
extern void StartBraille __P((void));
struct braille_display
{
struct display *bd_dpy; /* display we are connected to */
int bd_start_braille; /* screenrc var to request to turn braille on */
int bd_using_braille; /* all is fine, use braille */
struct event bd_readev;
struct event bd_writeev;
struct event bd_selectev;
int bd_fd; /* file descriptor */
int bd_obuflen; /* current number of charactors in output buffer */
char bd_obuf[IOSIZE];
int bd_info; /* default, no info, 0,1,2,3 */
int bd_ncrc; /* default 1, numbers of cells on the right side of real cursor, 1...bd_width */
int bd_skip; /* default off, on/off */
int bd_link; /* default, linked, on/off */
int bd_width; /* length of braille display to use, <=bd_ncells */
int bd_scroll; /* default on, scroll on/off */
char *bd_braille_table; /* braille code */
int bd_bell; /* bell used for navigation on/off */
int bd_ncells; /* real number of cells on braille display */
int bd_eightdot; /* eightdot on/off */
int bd_baud; /* communication baudrate between port and braille display */
char *bd_port; /* serial port to use */
char *bd_type; /* kind of braille display */
double bd_version; /* rom version of braille display */
char bd_btable[256]; /* braille translation table */
/* functions which communicate with braille displays */
int (*write_line_braille) __P((char [],int, int));
void (*buttonpress) __P((void));
int (*bd_response_test) __P((void));
int bd_refreshing; /* are we doing a refresh? */
char bd_line[40+1]; /* bd_ncells chars displayed on braille */
int bd_cursorpos; /* cursor position on braille */
char bd_oline[40+1]; /* bd_ncells chars displayed on braille */
int bd_sx, bd_sy; /* screen cursor pos */
int bd_moved; /* used braille move keys */
int bd_searching; /* are we seaching (bd_skip is on) */
int bd_searchmax; /* search: max x */
int bd_searchmin; /* search: min x */
int bd_searchstart;
int bd_searchend;
};
extern struct braille_display bd;
#define BD_FORE bd.bd_dpy->d_fore
#endif
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