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Member "screen-4.7.0/braille.h" (1 Oct 2019, 3282 Bytes) of package /linux/misc/screen-4.7.0.tar.gz:


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    1 /* 
    2  *      Authors:  Hadi Bargi Rangin  bargi@dots.physics.orst.edu
    3  *                Bill Barry         barryb@dots.physics.orst.edu
    4  *                Randy Lundquist    randyl@dots.physics.orst.edu
    5  *
    6  * Modifications Copyright (c) 1995 by
    7  * Science Access Project, Oregon State University.
    8  *
    9  * This program is free software; you can redistribute it and/or modify
   10  * it under the terms of the GNU General Public License as published by
   11  * the Free Software Foundation; either version 3, or (at your option)
   12  * any later version.
   13  *
   14  * This program is distributed in the hope that it will be useful,
   15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   17  * GNU General Public License for more details.
   18  *
   19  * You should have received a copy of the GNU General Public License
   20  * along with this program (see the file COPYING); if not, see
   21  * http://www.gnu.org/licenses/, or contact Free Software Foundation, Inc.,
   22  * 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
   23  *
   24  ****************************************************************
   25  * $Id$ GNU
   26  */
   27 
   28 #ifdef HAVE_BRAILLE
   29 
   30 extern void StartBraille __P((void));
   31 
   32 struct braille_display
   33 {
   34   struct display *bd_dpy;   /* display we are connected to */
   35   int   bd_start_braille;   /* screenrc var to request to turn braille on */
   36   int   bd_using_braille;   /* all is fine, use braille */
   37   struct event bd_readev;
   38   struct event bd_writeev;
   39   struct event bd_selectev;
   40   int   bd_fd;      /* file descriptor */
   41   int   bd_obuflen; /* current number of charactors in output buffer */
   42   char  bd_obuf[IOSIZE]; 
   43   int   bd_info;    /* default, no info, 0,1,2,3 */
   44   int   bd_ncrc;    /* default 1, numbers of cells on the right side of real cursor, 1...bd_width */
   45   int   bd_skip;    /* default off, on/off */
   46   int   bd_link;    /* default, linked, on/off */
   47   int   bd_width;   /* length of braille display to use, <=bd_ncells */
   48   int   bd_scroll;  /* default on, scroll on/off */
   49   char *bd_braille_table;   /* braille code */
   50 
   51   int   bd_bell;    /* bell used for navigation on/off */
   52   int   bd_ncells;  /* real number of cells on braille display */
   53   int   bd_eightdot;    /* eightdot on/off */
   54   int   bd_baud;    /* communication baudrate between port and braille display */
   55   char *bd_port;    /* serial port to use */
   56   char *bd_type;    /* kind of braille display */
   57   double bd_version;    /* rom version of braille display */
   58   char  bd_btable[256]; /* braille translation table */
   59 
   60   /* functions which communicate with braille displays */
   61   int (*write_line_braille) __P((char [],int, int));
   62   void (*buttonpress) __P((void));
   63   int (*bd_response_test) __P((void));
   64 
   65   int   bd_refreshing;  /* are we doing a refresh? */
   66   char  bd_line[40+1];  /* bd_ncells chars displayed on braille */
   67   int   bd_cursorpos;   /* cursor position on braille */
   68   char  bd_oline[40+1]; /* bd_ncells chars displayed on braille */
   69   int   bd_sx, bd_sy;   /* screen cursor pos */
   70   int   bd_moved;   /* used braille move keys */
   71 
   72   int   bd_searching;   /* are we seaching (bd_skip is on) */
   73   int   bd_searchmax;   /* search: max x */
   74   int   bd_searchmin;   /* search: min x */
   75   int   bd_searchstart;
   76   int   bd_searchend;
   77 };
   78 
   79 extern struct braille_display bd;
   80 
   81 #define BD_FORE bd.bd_dpy->d_fore
   82 
   83 #endif