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Annotation of src/lib/libcurses/curses_private.h, Revision 1.13

1.13    ! jdc         1: /*     $NetBSD: curses_private.h,v 1.12 2000/12/22 17:07:13 jdc Exp $  */
1.1       blymn       2:
                      3: /*-
                      4:  * Copyright (c) 1998-2000 Brett Lymn
                      5:  *                         (blymn@baea.com.au, brett_lymn@yahoo.com.au)
                      6:  * All rights reserved.
                      7:  *
                      8:  * This code has been donated to The NetBSD Foundation by the Author.
                      9:  *
                     10:  * Redistribution and use in source and binary forms, with or without
                     11:  * modification, are permitted provided that the following conditions
                     12:  * are met:
                     13:  * 1. Redistributions of source code must retain the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer.
                     15:  * 2. The name of the author may not be used to endorse or promote products
                     16:  *    derived from this software withough specific prior written permission
                     17:  *
                     18:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     19:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     20:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     21:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     22:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     23:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     24:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     25:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     26:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     27:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     28:  *
                     29:  *
                     30:  */
                     31:
                     32: /* Private structure definitions for curses. */
                     33: /*
                     34:  * A window an array of __LINE structures pointed to by the 'lines' pointer.
                     35:  * A line is an array of __LDATA structures pointed to by the 'line' pointer.
                     36:  *
                     37:  * IMPORTANT: the __LDATA structure must NOT induce any padding, so if new
                     38:  * fields are added -- padding fields with *constant values* should ensure
                     39:  * that the compiler will not generate any padding when storing an array of
                     40:  *  __LDATA structures.  This is to enable consistent use of memcmp, and memcpy
                     41:  * for comparing and copying arrays.
                     42:  */
                     43:
                     44: struct __ldata {
                     45:        wchar_t ch;                     /* Character */
                     46:        attr_t  attr;                   /* Attributes */
1.5       jdc        47:        wchar_t bch;                    /* Background character */
                     48:        attr_t  battr;                  /* Background attributes */
1.1       blymn      49: };
                     50:
                     51: #define __LDATASIZE    (sizeof(__LDATA))
                     52:
                     53: struct __line {
                     54: #define        __ISDIRTY       0x01            /* Line is dirty. */
                     55: #define __ISPASTEOL    0x02            /* Cursor is past end of line */
                     56:        unsigned int flags;
                     57:        unsigned int hash;              /* Hash value for the line. */
                     58:        int *firstchp, *lastchp;        /* First and last chngd columns ptrs */
                     59:        int firstch, lastch;            /* First and last changed columns. */
                     60:        __LDATA *line;                  /* Pointer to the line text. */
                     61: };
                     62:
                     63: struct __window {              /* Window structure. */
                     64:        struct __window *nextp, *orig;  /* Subwindows list and parent. */
                     65:        int begy, begx;                 /* Window home. */
                     66:        int cury, curx;                 /* Current x, y coordinates. */
                     67:        int maxy, maxx;                 /* Maximum values for curx, cury. */
                     68:        short ch_off;                   /* x offset for firstch/lastch. */
                     69:        __LINE **lines;                 /* Array of pointers to the lines */
                     70:        __LINE  *lspace;                /* line space (for cleanup) */
                     71:        __LDATA *wspace;                /* window space (for cleanup) */
                     72:
                     73: #define        __ENDLINE       0x00000001      /* End of screen. */
                     74: #define        __FLUSH         0x00000002      /* Fflush(stdout) after refresh. */
                     75: #define        __FULLWIN       0x00000004      /* Window is a screen. */
                     76: #define        __IDLINE        0x00000008      /* Insert/delete sequences. */
                     77: #define        __SCROLLWIN     0x00000010      /* Last char will scroll window. */
                     78: #define        __SCROLLOK      0x00000020      /* Scrolling ok. */
                     79: #define        __CLEAROK       0x00000040      /* Clear on next refresh. */
                     80: #define        __LEAVEOK       0x00000100      /* If cursor left */
                     81: #define        __KEYPAD        0x00010000      /* If interpreting keypad codes */
                     82: #define        __NOTIMEOUT     0x00020000      /* Wait indefinitely for func keys */
                     83:        unsigned int flags;
                     84:        int     delay;                  /* delay for getch() */
                     85:        attr_t  wattr;                  /* Character attributes */
1.5       jdc        86:        wchar_t bch;                    /* Background character */
1.2       jdc        87:        attr_t  battr;                  /* Background attributes */
1.1       blymn      88: };
1.5       jdc        89:
                     90: /* Set of attributes unset by 'me' - 'mb', 'md', 'mh', 'mk', 'mp' and 'mr'. */
                     91: #define        __TERMATTR \
                     92:        (__REVERSE | __BLINK | __DIM | __BOLD | __BLANK | __PROTECT)
1.2       jdc        93:
1.3       jdc        94: struct __winlist {
                     95:        struct __window         *winp;  /* The window. */
                     96:        struct __winlist        *nextp; /* Next window. */
                     97: };
                     98:
1.11      jdc        99: /* Private variables. */
                    100: extern char     __GT;                  /* Gtty indicates tabs. */
                    101: extern char     __NONL;                /* Term can't hack LF doing a CR. */
                    102: extern char     __UPPERCASE;           /* Terminal is uppercase only. */
                    103:
                    104: extern int      My_term;               /* Use Def_term regardless. */
                    105: extern const char      *Def_term;      /* Default terminal type. */
                    106:
1.2       jdc       107: /* Private functions. */
                    108: #ifdef DEBUG
1.4       blymn     109: void    __CTRACE(const char *fmt, ...);
1.2       jdc       110: #endif
1.4       blymn     111: int     __delay(void);
                    112: unsigned int __hash(char *s, int len);
                    113: void    __id_subwins(WINDOW *orig);
1.9       blymn     114: void    __init_getch(void);
1.4       blymn     115: void    __init_acs(void);
                    116: char   *__longname(char *bp, char *def);       /* Original BSD version */
                    117: int     __mvcur(int ly, int lx, int y, int x, int in_refresh);
                    118: int     __nodelay(void);
                    119: int     __notimeout(void);
                    120: char   *__parse_cap(const char *, ...);
                    121: void    __restartwin(void);
                    122: void    __restore_colors(void);
1.6       blymn     123: void     __restore_cursor_vis(void);
                    124: void     __restore_meta_state(void);
1.4       blymn     125: void    __restore_termios(void);
                    126: void    __restore_stophandler(void);
                    127: void    __save_termios(void);
                    128: void    __set_color(attr_t attr);
                    129: void    __set_stophandler(void);
                    130: void    __set_subwin(WINDOW *orig, WINDOW *win);
                    131: void    __startwin(void);
                    132: void    __stop_signal_handler(int signo);
                    133: int     __stopwin(void);
                    134: void    __swflags(WINDOW *win);
                    135: int     __timeout(int delay);
1.10      mycroft   136: int     __touchline(WINDOW *win, int y, int sx, int ex);
1.4       blymn     137: int     __touchwin(WINDOW *win);
                    138: char   *__tscroll(const char *cap, int n1, int n2);
1.7       jdc       139: void    __unsetattr(int);
1.4       blymn     140: int     __waddch(WINDOW *win, __LDATA *dp);
1.2       jdc       141:
                    142: /* Private #defines. */
                    143: #define        min(a,b)        (a < b ? a : b)
                    144: #define        max(a,b)        (a > b ? a : b)
                    145:
                    146: /* Private externs. */
1.3       jdc       147: extern int              __echoit;
                    148: extern int              __endwin;
                    149: extern int              __pfast;
                    150: extern int              __rawmode;
                    151: extern int              __noqch;
                    152: extern attr_t           __nca;
1.11      jdc       153: extern attr_t           __mask_op, __mask_me, __mask_ue, __mask_se;
1.3       jdc       154: extern struct __winlist        *__winlistp;
1.7       jdc       155: extern WINDOW          *__virtscr;

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