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Annotation of 43BSD/ucb/window/tt.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * @(#)tt.h    3.15 9/20/85
                      3:  */
                      4: 
                      5: /*
                      6:  * Copyright (c) 1983 Regents of the University of California,
                      7:  * All rights reserved.  Redistribution permitted subject to
                      8:  * the terms of the Berkeley Software License Agreement.
                      9:  */
                     10: 
                     11: /*
                     12:  * Interface structure for the terminal drivers.
                     13:  */
                     14: struct tt {
                     15:                /* startup and cleanup */
                     16:        int (*tt_init)();
                     17:        int (*tt_end)();
                     18: 
                     19:                /* terminal functions */
                     20:        int (*tt_move)();
                     21:        int (*tt_insline)();
                     22:        int (*tt_delline)();
                     23:        int (*tt_delchar)();
                     24:        int (*tt_write)();              /* write a whole block */
                     25:        int (*tt_putc)();               /* write one character */
                     26:        int (*tt_clreol)();
                     27:        int (*tt_clreos)();
                     28:        int (*tt_clear)();
                     29:        int (*tt_setinsert)();          /* set insert mode */
                     30:        int (*tt_setmodes)();           /* set display modes */
                     31: 
                     32:                /* internal variables */
                     33:        char tt_modes;                  /* the current display modes */
                     34:        char tt_nmodes;                 /* the new modes for next write */
                     35:        char tt_insert;                 /* currently in insert mode */
                     36:        char tt_ninsert;                /* insert mode on next write */
                     37:        int tt_row;                     /* cursor row */
                     38:        int tt_col;                     /* cursor column */
                     39: 
                     40:                /* terminal info */
                     41:        int tt_nrow;                    /* number of display rows */
                     42:        int tt_ncol;                    /* number of display columns */
                     43:        char tt_hasinsert;              /* has insert character */
                     44:        char tt_availmodes;             /* the display modes supported */
                     45:        char tt_wrap;                   /* has auto wrap around */
                     46:        char tt_retain;                 /* can retain below (db flag) */
                     47: 
                     48:                /* the frame characters */
                     49:        short *tt_frame;
                     50: };
                     51: struct tt tt;
                     52: 
                     53: /*
                     54:  * List of terminal drivers.
                     55:  */
                     56: struct tt_tab {
                     57:        char *tt_name;
                     58:        int tt_len;
                     59:        int (*tt_func)();
                     60: };
                     61: struct tt_tab tt_tab[];
                     62: 
                     63: /*
                     64:  * Clean interface to termcap routines.
                     65:  * Too may t's.
                     66:  */
                     67: char tt_strings[1024];         /* string buffer */
                     68: char *tt_strp;                 /* pointer for it */
                     69: 
                     70: struct tt_str {
                     71:        char *ts_str;
                     72:        int ts_n;
                     73: };
                     74: 
                     75: struct tt_str *tttgetstr();
                     76: struct tt_str *ttxgetstr();    /* tgetstr() and expand delays */
                     77: 
                     78: int tttputc();
                     79: #define tttputs(s, n)  tputs((s)->ts_str, (n), tttputc)
                     80: #define ttxputs(s)     ttwrite((s)->ts_str, (s)->ts_n)
                     81: 
                     82: /*
                     83:  * Buffered output without stdio.
                     84:  * These variables have different meanings from the ww_ob* variabels.
                     85:  * But I'm too lazy to think up different names.
                     86:  */
                     87: char tt_ob[512];
                     88: char *tt_obp;
                     89: char *tt_obe;
                     90: #define ttputc(c)      (tt_obp < tt_obe ? (*tt_obp++ = (c)) \
                     91:                                : (ttflush(), *tt_obp++ = (c)))

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