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Annotation of 43BSDTahoe/ucb/window/tt.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1983 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted
        !             6:  * provided that the above copyright notice and this paragraph are
        !             7:  * duplicated in all such forms and that any documentation,
        !             8:  * advertising materials, and other materials related to such
        !             9:  * distribution and use acknowledge that the software was developed
        !            10:  * by the University of California, Berkeley.  The name of the
        !            11:  * University may not be used to endorse or promote products derived
        !            12:  * from this software without specific prior written permission.
        !            13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            16:  *
        !            17:  *     @(#)tt.h        3.20 (Berkeley) 6/29/88
        !            18:  */
        !            19: 
        !            20: /*
        !            21:  * Interface structure for the terminal drivers.
        !            22:  */
        !            23: struct tt {
        !            24:                /* startup and cleanup */
        !            25:        int (*tt_init)();
        !            26:        int (*tt_end)();
        !            27: 
        !            28:                /* terminal functions */
        !            29:        int (*tt_move)();
        !            30:        int (*tt_insline)();
        !            31:        int (*tt_delline)();
        !            32:        int (*tt_delchar)();
        !            33:        int (*tt_write)();              /* write a whole block */
        !            34:        int (*tt_putc)();               /* write one character */
        !            35:        int (*tt_clreol)();
        !            36:        int (*tt_clreos)();
        !            37:        int (*tt_clear)();
        !            38:        int (*tt_scroll_down)();
        !            39:        int (*tt_scroll_up)();
        !            40:        int (*tt_setscroll)();          /* set scrolling region */
        !            41:        int (*tt_setinsert)();          /* set insert mode */
        !            42:        int (*tt_setmodes)();           /* set display modes */
        !            43: 
        !            44:                /* internal variables */
        !            45:        char tt_modes;                  /* the current display modes */
        !            46:        char tt_nmodes;                 /* the new modes for next write */
        !            47:        char tt_insert;                 /* currently in insert mode */
        !            48:        char tt_ninsert;                /* insert mode on next write */
        !            49:        int tt_row;                     /* cursor row */
        !            50:        int tt_col;                     /* cursor column */
        !            51:        int tt_scroll_top;              /* top of scrolling region */
        !            52:        int tt_scroll_bot;              /* bottom of scrolling region */
        !            53: 
        !            54:                /* terminal info */
        !            55:        int tt_nrow;                    /* number of display rows */
        !            56:        int tt_ncol;                    /* number of display columns */
        !            57:        char tt_hasinsert;              /* has insert character */
        !            58:        char tt_availmodes;             /* the display modes supported */
        !            59:        char tt_wrap;                   /* has auto wrap around */
        !            60:        char tt_retain;                 /* can retain below (db flag) */
        !            61: 
        !            62:                /* the frame characters */
        !            63:        short *tt_frame;
        !            64: };
        !            65: struct tt tt;
        !            66: 
        !            67: /*
        !            68:  * List of terminal drivers.
        !            69:  */
        !            70: struct tt_tab {
        !            71:        char *tt_name;
        !            72:        int tt_len;
        !            73:        int (*tt_func)();
        !            74: };
        !            75: extern struct tt_tab tt_tab[];
        !            76: 
        !            77: /*
        !            78:  * Clean interface to termcap routines.
        !            79:  * Too may t's.
        !            80:  */
        !            81: char tt_strings[1024];         /* string buffer */
        !            82: char *tt_strp;                 /* pointer for it */
        !            83: 
        !            84: struct tt_str {
        !            85:        char *ts_str;
        !            86:        int ts_n;
        !            87: };
        !            88: 
        !            89: struct tt_str *tttgetstr();
        !            90: struct tt_str *ttxgetstr();    /* tgetstr() and expand delays */
        !            91: 
        !            92: int tttputc();
        !            93: #define tttputs(s, n)  tputs((s)->ts_str, (n), tttputc)
        !            94: #define ttxputs(s)     ttwrite((s)->ts_str, (s)->ts_n)
        !            95: 
        !            96: /*
        !            97:  * Buffered output without stdio.
        !            98:  * These variables have different meanings from the ww_ob* variabels.
        !            99:  * But I'm too lazy to think up different names.
        !           100:  */
        !           101: char tt_ob[512];
        !           102: char *tt_obp;
        !           103: char *tt_obe;
        !           104: #define ttputc(c)      (tt_obp < tt_obe ? (*tt_obp++ = (c)) \
        !           105:                                : (ttflush(), *tt_obp++ = (c)))

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