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NetBSD/lib/libcurses/curses_private.h
jdc 978ab4ad4e Background characters and attributes don't need to be kept per character 
cell, as they are merged when characters are added.  Remove the per cell
storage and clarify the manual page.  Pointed out by ruibiao@.
2006-01-15 11:43:54 +00:00

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/* $NetBSD: curses_private.h,v 1.38 2006/01/15 11:43:54 jdc Exp $ */
/*-
* Copyright (c) 1998-2000 Brett Lymn
* (blymn@baea.com.au, brett_lymn@yahoo.com.au)
* All rights reserved.
*
* This code has been donated to The NetBSD Foundation by the Author.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
*/
#include <termios.h>
/* Private structure definitions for curses. */
/* Termcap capabilities. */
extern char __tc_am, __tc_bs, __tc_cc, __tc_da, __tc_eo,
__tc_hc, __tc_hl, __tc_in, __tc_mi, __tc_ms,
__tc_nc, __tc_ns, __tc_os, __tc_ul, __tc_ut,
__tc_xb, __tc_xn, __tc_xt, __tc_xs, __tc_xx;
extern char __CA;
extern int __tc_pa, __tc_Co, __tc_NC;
extern char *__tc_ac, *__tc_AB, *__tc_ae, *__tc_AF, *__tc_AL,
*__tc_al, *__tc_as, *__tc_bc, *__tc_bl, *__tc_bt,
*__tc_cd, *__tc_ce, *__tc_cl, *__tc_cm, *__tc_cr,
*__tc_cs, *__tc_dc, *__tc_DL, *__tc_dl, *__tc_dm,
*__tc_DO, *__tc_do, *__tc_eA, *__tc_ed, *__tc_ei,
*__tc_ho, *__tc_Ic, *__tc_ic, *__tc_im, *__tc_Ip,
*__tc_ip, *__tc_k0, *__tc_k1, *__tc_k2, *__tc_k3,
*__tc_k4, *__tc_k5, *__tc_k6, *__tc_k7, *__tc_k8,
*__tc_k9, *__tc_kd, *__tc_ke, *__tc_kh, *__tc_kl,
*__tc_kr, *__tc_ks, *__tc_ku, *__tc_LE, *__tc_ll,
*__tc_ma, *__tc_mb, *__tc_md, *__tc_me, *__tc_mh,
*__tc_mk, *__tc_mm, *__tc_mo, *__tc_mp, *__tc_mr,
*__tc_nd, *__tc_nl, *__tc_oc, *__tc_op,
*__tc_rc, *__tc_RI, *__tc_Sb, *__tc_sc, *__tc_se,
*__tc_SF, *__tc_Sf, *__tc_sf, *__tc_so, *__tc_sp,
*__tc_SR, *__tc_sr, *__tc_ta, *__tc_te, *__tc_ti,
*__tc_uc, *__tc_ue, *__tc_UP, *__tc_up, *__tc_us,
*__tc_vb, *__tc_ve, *__tc_vi, *__tc_vs;
/*
* A window an array of __LINE structures pointed to by the 'lines' pointer.
* A line is an array of __LDATA structures pointed to by the 'line' pointer.
*
* IMPORTANT: the __LDATA structure must NOT induce any padding, so if new
* fields are added -- padding fields with *constant values* should ensure
* that the compiler will not generate any padding when storing an array of
* __LDATA structures. This is to enable consistent use of memcmp, and memcpy
* for comparing and copying arrays.
*/
struct __ldata {
wchar_t ch; /* Character */
attr_t attr; /* Attributes */
};
#define __LDATASIZE (sizeof(__LDATA))
struct __line {
#ifdef DEBUG
#define SENTINEL_VALUE 0xaac0ffee
unsigned int sentinel; /* try to catch line overflows */
#endif
#define __ISDIRTY 0x01 /* Line is dirty. */
#define __ISPASTEOL 0x02 /* Cursor is past end of line */
unsigned int flags;
unsigned int hash; /* Hash value for the line. */
int *firstchp, *lastchp; /* First and last chngd columns ptrs */
int firstch, lastch; /* First and last changed columns. */
__LDATA *line; /* Pointer to the line text. */
};
struct __window { /* Window structure. */
struct __window *nextp, *orig; /* Subwindows list and parent. */
int begy, begx; /* Window home. */
int cury, curx; /* Current x, y coordinates. */
int maxy, maxx; /* Maximum values for curx, cury. */
int reqy, reqx; /* Size requested when created */
int ch_off; /* x offset for firstch/lastch. */
__LINE **lines; /* Array of pointers to the lines */
__LINE *lspace; /* line space (for cleanup) */
__LDATA *wspace; /* window space (for cleanup) */
#define __ENDLINE 0x00000001 /* End of screen. */
#define __FLUSH 0x00000002 /* Fflush(stdout) after refresh. */
#define __FULLWIN 0x00000004 /* Window is a screen. */
#define __IDLINE 0x00000008 /* Insert/delete sequences. */
#define __SCROLLWIN 0x00000010 /* Last char will scroll window. */
#define __SCROLLOK 0x00000020 /* Scrolling ok. */
#define __CLEAROK 0x00000040 /* Clear on next refresh. */
#define __LEAVEOK 0x00000100 /* If cursor left */
#define __KEYPAD 0x00010000 /* If interpreting keypad codes */
#define __NOTIMEOUT 0x00020000 /* Wait indefinitely for func keys */
#define __IDCHAR 0x00040000 /* insert/delete char sequences */
#define __ISPAD 0x00080000 /* "window" is a pad */
unsigned int flags;
int delay; /* delay for getch() */
attr_t wattr; /* Character attributes */
wchar_t bch; /* Background character */
attr_t battr; /* Background attributes */
int scr_t, scr_b; /* Scrolling region top, bottom */
SCREEN *screen; /* Screen for this window */
int pbegy, pbegx,
sbegy, sbegx,
smaxy, smaxx; /* Saved prefresh() values */
};
/* Set of attributes unset by 'me' - 'mb', 'md', 'mh', 'mk', 'mp' and 'mr'. */
#define __TERMATTR \
(__REVERSE | __BLINK | __DIM | __BOLD | __BLANK | __PROTECT)
struct __winlist {
struct __window *winp; /* The window. */
struct __winlist *nextp; /* Next window. */
};
struct __color {
short num;
short red;
short green;
short blue;
int flags;
};
/* List of colour pairs */
struct __pair {
short fore;
short back;
int flags;
};
/* Maximum colours */
#define MAX_COLORS 64
/* Maximum colour pairs - determined by number of colour bits in attr_t */
#define MAX_PAIRS PAIR_NUMBER(__COLOR)
typedef struct keymap keymap_t;
/* this is the encapsulation of the terminal definition, one for
* each terminal that curses talks to.
*/
struct __screen {
FILE *infd, *outfd; /* input and output file descriptors */
WINDOW *curscr; /* Current screen. */
WINDOW *stdscr; /* Standard screen. */
WINDOW *__virtscr; /* Virtual screen (for doupdate()). */
int curwin; /* current window for refresh */
int lx, ly; /* loop parameters for refresh */
int COLS; /* Columns on the screen. */
int LINES; /* Lines on the screen. */
int COLORS; /* Maximum colors on the screen */
int COLOR_PAIRS; /* Maximum color pairs on the screen */
int My_term; /* Use Def_term regardless. */
char GT; /* Gtty indicates tabs. */
char NONL; /* Term can't hack LF doing a CR. */
char UPPERCASE; /* Terminal is uppercase only. */
/* BEWARE!!! The order of the following terminal capabilities */
/* (tc_foo) is important - do not update without fixing the zap */
/* function in setterm.c */
char tc_am, tc_bs, tc_cc, tc_da, tc_eo, tc_hc, tc_hl, tc_in, tc_mi,
tc_ms, tc_nc, tc_ns, tc_os, tc_ul, tc_ut, tc_xb, tc_xn, tc_xt,
tc_xs, tc_xx;
int flag_count;
int tc_pa, tc_Co, tc_NC;
int int_count;
char *tc_AB, *tc_ac, *tc_ae, *tc_AF, *tc_AL,
*tc_al, *tc_as, *tc_bc, *tc_bl, *tc_bt,
*tc_cd, *tc_ce, *tc_cl, *tc_cm, *tc_cr,
*tc_cs, *tc_dc, *tc_DL, *tc_dl, *tc_dm,
*tc_DO, *tc_do, *tc_eA, *tc_ed, *tc_ei,
*tc_ho, *tc_Ic, *tc_ic, *tc_im, *tc_Ip,
*tc_ip, *tc_k0, *tc_k1, *tc_k2, *tc_k3,
*tc_k4, *tc_k5, *tc_k6, *tc_k7, *tc_k8,
*tc_k9, *tc_kd, *tc_ke, *tc_kh, *tc_kl,
*tc_kr, *tc_ks, *tc_ku, *tc_LE, *tc_ll,
*tc_ma, *tc_mb, *tc_md, *tc_me, *tc_mh,
*tc_mk, *tc_mm, *tc_mo, *tc_mp, *tc_mr,
*tc_nd, *tc_nl, *tc_oc, *tc_op, *tc_pc,
*tc_rc, *tc_RI, *tc_Sb, *tc_sc, *tc_se,
*tc_SF, *tc_Sf, *tc_sf, *tc_so, *tc_sp,
*tc_SR, *tc_sr, *tc_ta, *tc_te, *tc_ti,
*tc_uc, *tc_ue, *tc_UP, *tc_up, *tc_us,
*tc_vb, *tc_ve, *tc_vi, *tc_vs;
char CA;
int str_count;
chtype acs_char[NUM_ACS];
struct __color colours[MAX_COLORS];
struct __pair colour_pairs[MAX_PAIRS];
attr_t nca;
/* Style of colour manipulation */
#define COLOR_NONE 0
#define COLOR_ANSI 1 /* ANSI/DEC-style colour manipulation */
#define COLOR_HP 2 /* HP-style colour manipulation */
#define COLOR_TEK 3 /* Tektronix-style colour manipulation */
#define COLOR_OTHER 4 /* None of the others but can set fore/back */
int color_type;
attr_t mask_op;
attr_t mask_me;
attr_t mask_ue;
attr_t mask_se;
struct tinfo *cursesi_genbuf;
int old_mode; /* old cursor visibility state for terminal */
keymap_t *base_keymap;
int echoit;
int pfast;
int rawmode;
int nl;
int noqch;
int clearok;
int useraw;
struct __winlist *winlistp;
struct termios cbreakt, rawt, *curt, save_termios;
struct termios orig_termios, baset, savedtty;
int ovmin;
int ovtime;
char *stdbuf;
unsigned int len;
int meta_state;
char pad_char;
char ttytype[128];
int endwin;
int notty;
int half_delay;
int resized;
};
extern char __GT; /* Gtty indicates tabs. */
extern char __NONL; /* Term can't hack LF doing a CR. */
extern char __UPPERCASE; /* Terminal is uppercase only. */
extern int My_term; /* Use Def_term regardless. */
extern const char *Def_term; /* Default terminal type. */
extern SCREEN *_cursesi_screen; /* The current screen in use */
/* Private functions. */
#ifdef DEBUG
void __CTRACE(const char *, ...) __attribute__((__format__(__printf__, 1, 0)));
#endif
void __cputchar_args(char, void *);
void _cursesi_free_keymap(keymap_t *);
int _cursesi_gettmode(SCREEN *);
void _cursesi_reset_acs(SCREEN *);
void _cursesi_resetterm(SCREEN *);
int _cursesi_setterm(char *, SCREEN *);
int __delay(void);
u_int __hash_more(const void *, size_t, u_int);
#define __hash(s, len) __hash_more((s), (len), 0u)
void __id_subwins(WINDOW *);
void __init_getch(SCREEN *);
void __init_acs(SCREEN *);
char *__longname(char *, char *); /* Original BSD version */
int __mvcur(int, int, int, int, int);
WINDOW *__newwin(SCREEN *, int, int, int, int, int);
int __nodelay(void);
int __notimeout(void);
char *__parse_cap(const char *, ...);
void __restartwin(void);
void __restore_colors(void);
void __restore_cursor_vis(void);
void __restore_meta_state(void);
void __restore_termios(void);
void __restore_stophandler(void);
void __restore_winchhandler(void);
void __save_termios(void);
void __set_color(WINDOW *win, attr_t attr);
void __set_stophandler(void);
void __set_winchhandler(void);
void __set_subwin(WINDOW *, WINDOW *);
void __startwin(SCREEN *);
void __stop_signal_handler(int);
int __stopwin(void);
void __swflags(WINDOW *);
int __timeout(int);
int __touchline(WINDOW *, int, int, int);
int __touchwin(WINDOW *);
char *__tscroll(const char *, int, int);
void __unsetattr(int);
void __unset_color(WINDOW *win);
int __waddch(WINDOW *, __LDATA *);
int __wgetnstr(WINDOW *, char *, int);
void __winch_signal_handler(int);
/* Private #defines. */
#define min(a,b) ((a) < (b) ? (a) : (b))
#define max(a,b) ((a) > (b) ? (a ): (b))
/* Private externs. */
extern int __echoit;
extern int __endwin;
extern int __pfast;
extern int __rawmode;
extern int __noqch;
extern attr_t __mask_op, __mask_me, __mask_ue, __mask_se;
extern WINDOW *__virtscr;
extern int __using_color;
extern attr_t __default_color;
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