421 lines
14 KiB
C
421 lines
14 KiB
C
/* $NetBSD: curses_private.h,v 1.62 2017/01/31 09:17:53 roy Exp $ */
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/*-
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* Copyright (c) 1998-2000 Brett Lymn
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* (blymn@baea.com.au, brett_lymn@yahoo.com.au)
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* All rights reserved.
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*
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* This code has been donated to The NetBSD Foundation by the Author.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*
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*/
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/* Modified by Ruibiao Qiu <ruibiao@arl.wustl.edu,ruibiao@gmail.com>
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* to add support for wide characters
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* Changes:
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* - Add a compiler variable HAVE_WCHAR for wide character only code
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* - Add a pointer to liked list of non-spacing characters in __ldata
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* and the macro to access the width field in the attribute field
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* - Add a circular input character buffer in __screen to handle
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* wide-character input (used in get_wch())
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*/
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#include <term.h>
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#include <termios.h>
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/* Private structure definitions for curses. */
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/* Termcap capabilities. */
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#ifdef HAVE_WCHAR
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/*
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* Add a list of non-spacing characters to each spacing
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* character in a singly linked list
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*/
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typedef struct nschar_t {
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wchar_t ch; /* Non-spacing character */
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struct nschar_t *next; /* Next non-spacing character */
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} nschar_t;
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#endif /* HAVE_WCHAR */
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/*
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* A window is an array of __LINE structures pointed to by the 'lines' pointer.
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* A line is an array of __LDATA structures pointed to by the 'line' pointer.
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*
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* IMPORTANT: the __LDATA structure must NOT induce any padding, so if new
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* fields are added -- padding fields with *constant values* should ensure
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* that the compiler will not generate any padding when storing an array of
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* __LDATA structures. This is to enable consistent use of memcmp, and memcpy
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* for comparing and copying arrays.
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*/
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struct __ldata {
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wchar_t ch; /* Character */
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attr_t attr; /* Attributes */
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#ifdef HAVE_WCHAR
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nschar_t *nsp; /* Foreground non-spacing character pointer */
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#endif /* HAVE_WCHAR */
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};
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#ifdef HAVE_WCHAR
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/* macros to extract the width of a wide character */
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#define __WCWIDTH 0xfc000000
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#define WCW_SHIFT 26
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#define WCOL(wc) ((((unsigned) (wc).attr) >> WCW_SHIFT ) > MB_LEN_MAX ? ((int)(((unsigned) (wc).attr ) >> WCW_SHIFT )) - 64 : ((int)(((unsigned) (wc).attr ) >> WCW_SHIFT)))
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#define SET_WCOL(c, w) do { \
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((c).attr) = ((((c).attr) & WA_ATTRIBUTES ) | ((w) << WCW_SHIFT )); \
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} while(/*CONSTCOND*/0)
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#define BGWCOL(wc) ((((wc).battr) >> WCW_SHIFT ) > MB_LEN_MAX ? (((wc).battr ) >> WCW_SHIFT ) - 64 : (((wc).battr ) >> WCW_SHIFT ))
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#define SET_BGWCOL(c, w) do { \
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((c).battr) = ((((c).battr) & WA_ATTRIBUTES ) | ((w) << WCW_SHIFT )); \
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} while(/*CONSTCOND*/0)
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#endif /* HAVE_WCHAR */
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#define __LDATASIZE (sizeof(__LDATA))
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struct __line {
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#ifdef DEBUG
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#define SENTINEL_VALUE 0xaac0ffee
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unsigned int sentinel; /* try to catch line overflows */
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#endif
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#define __ISDIRTY 0x01 /* Line is dirty. */
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#define __ISPASTEOL 0x02 /* Cursor is past end of line */
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#define __ISFORCED 0x04 /* Force update, no optimisation */
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unsigned int flags;
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unsigned int hash; /* Hash value for the line. */
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int *firstchp, *lastchp; /* First and last chngd columns ptrs */
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int firstch, lastch; /* First and last changed columns. */
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__LDATA *line; /* Pointer to the line text. */
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};
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struct __window { /* Window structure. */
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struct __window *nextp, *orig; /* Subwindows list and parent. */
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int begy, begx; /* Window home. */
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int cury, curx; /* Current x, y coordinates. */
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int maxy, maxx; /* Maximum values for curx, cury. */
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int reqy, reqx; /* Size requested when created */
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int ch_off; /* x offset for firstch/lastch. */
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__LINE **alines; /* Array of pointers to the lines */
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__LINE *lspace; /* line space (for cleanup) */
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__LDATA *wspace; /* window space (for cleanup) */
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#define __ENDLINE 0x00000001 /* End of screen. */
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#define __FLUSH 0x00000002 /* Fflush(stdout) after refresh. */
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#define __FULLWIN 0x00000004 /* Window is a screen. */
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#define __IDLINE 0x00000008 /* Insert/delete sequences. */
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#define __SCROLLWIN 0x00000010 /* Last char will scroll window. */
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#define __SCROLLOK 0x00000020 /* Scrolling ok. */
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#define __CLEAROK 0x00000040 /* Clear on next refresh. */
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#define __LEAVEOK 0x00000100 /* If cursor left */
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#define __KEYPAD 0x00010000 /* If interpreting keypad codes */
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#define __NOTIMEOUT 0x00020000 /* Wait indefinitely for func keys */
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#define __IDCHAR 0x00040000 /* insert/delete char sequences */
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#define __ISPAD 0x00080000 /* "window" is a pad */
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#define __ISDERWIN 0x00100000 /* "window" is derived from parent */
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#define __IMMEDOK 0x00200000 /* refreshed when changed */
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#define __SYNCOK 0x00400000 /* sync when changed */
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unsigned int flags;
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int delay; /* delay for getch() */
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attr_t wattr; /* Character attributes */
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wchar_t bch; /* Background character */
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attr_t battr; /* Background attributes */
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int scr_t, scr_b; /* Scrolling region top, bottom */
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SCREEN *screen; /* Screen for this window */
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int pbegy, pbegx,
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sbegy, sbegx,
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smaxy, smaxx; /* Saved prefresh() values */
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int dery, derx; /* derived window coordinates
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- top left corner of source
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relative to parent win */
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#ifdef HAVE_WCHAR
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nschar_t *bnsp; /* Background non-spacing char list */
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#endif /* HAVE_WCHAR */
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FILE *fp; /* for window formatted printf */
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};
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/* Set of attributes unset by 'me' - 'mb', 'md', 'mh', 'mk', 'mp' and 'mr'. */
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#ifndef HAVE_WCHAR
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#define __TERMATTR \
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(__REVERSE | __BLINK | __DIM | __BOLD | __BLANK | __PROTECT)
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#else
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#define __TERMATTR \
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(__REVERSE | __BLINK | __DIM | __BOLD | __BLANK | __PROTECT \
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| WA_TOP | WA_LOW | WA_LEFT | WA_RIGHT | WA_HORIZONTAL | WA_VERTICAL)
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#endif /* HAVE_WCHAR */
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struct __winlist {
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struct __window *winp; /* The window. */
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struct __winlist *nextp; /* Next window. */
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};
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struct __color {
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short num;
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short red;
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short green;
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short blue;
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int flags;
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};
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/* List of colour pairs */
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struct __pair {
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short fore;
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short back;
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int flags;
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};
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/* Maximum colours */
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#define MAX_COLORS 256
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/* Maximum colour pairs - determined by number of colour bits in attr_t */
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#define MAX_PAIRS PAIR_NUMBER(__COLOR)
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typedef struct keymap keymap_t;
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/* POSIX allows up to 8 columns in a label. */
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#define MAX_SLK_COLS 8
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#ifdef HAVE_WCHAR
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#define MAX_SLK_LABEL sizeof(wchar_t) * MAX_SLK_COLS
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#else
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#define MAX_SLK_LABEL MAX_SLK_COLS
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#endif
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struct __slk_label {
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char *text;
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int justify;
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#define SLK_JUSTIFY_LEFT 0
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#define SLK_JUSTIFY_CENTER 1
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#define SLK_JUSTIFY_RIGHT 2
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char label[MAX_SLK_LABEL + 1];
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int x;
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};
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#define MAX_RIPS 5
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struct __ripoff {
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int nlines;
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WINDOW *win;
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};
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/* this is the encapsulation of the terminal definition, one for
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* each terminal that curses talks to.
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*/
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struct __screen {
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FILE *infd, *outfd; /* input and output file descriptors */
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WINDOW *curscr; /* Current screen. */
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WINDOW *stdscr; /* Standard screen. */
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WINDOW *__virtscr; /* Virtual screen (for doupdate()). */
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int curwin; /* current window for refresh */
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int lx, ly; /* loop parameters for refresh */
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int COLS; /* Columns on the screen. */
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int LINES; /* Lines on the screen. */
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int nripped; /* Number of ripofflines. */
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struct __ripoff ripped[MAX_RIPS]; /* ripofflines. */
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int ESCDELAY; /* Delay between keys in esc seq's. */
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#define ESCDELAY_DEFAULT 300 /* milliseconds. */
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int TABSIZE; /* Size of a tab. */
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#define TABSIZE_DEFAULT 8 /* spaces. */
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int COLORS; /* Maximum colors on the screen */
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int COLOR_PAIRS; /* Maximum color pairs on the screen */
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int My_term; /* Use Def_term regardless. */
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char GT; /* Gtty indicates tabs. */
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char NONL; /* Term can't hack LF doing a CR. */
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char UPPERCASE; /* Terminal is uppercase only. */
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chtype acs_char[NUM_ACS];
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#ifdef HAVE_WCHAR
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cchar_t wacs_char[ NUM_ACS ];
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#endif /* HAVE_WCHAR */
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struct __color colours[MAX_COLORS];
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struct __pair colour_pairs[MAX_PAIRS];
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attr_t nca;
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/* Style of colour manipulation */
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#define COLOR_NONE 0
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#define COLOR_ANSI 1 /* ANSI/DEC-style colour manipulation */
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#define COLOR_HP 2 /* HP-style colour manipulation */
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#define COLOR_TEK 3 /* Tektronix-style colour manipulation */
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#define COLOR_OTHER 4 /* None of the others but can set fore/back */
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int color_type;
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attr_t mask_op;
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attr_t mask_me;
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attr_t mask_ue;
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attr_t mask_se;
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TERMINAL *term;
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int old_mode; /* old cursor visibility state for terminal */
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keymap_t *base_keymap;
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int echoit;
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int pfast;
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int rawmode;
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int nl;
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int noqch;
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int clearok;
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int useraw;
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struct __winlist *winlistp;
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struct termios cbreakt, rawt, *curt, save_termios;
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struct termios orig_termios, baset, savedtty;
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int ovmin;
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int ovtime;
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char *stdbuf;
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unsigned int len;
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int meta_state;
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char padchar;
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int endwin;
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int notty;
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int half_delay;
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int resized;
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wchar_t *unget_list;
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int unget_len, unget_pos;
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int filtered;
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int checkfd;
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/* soft label key */
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bool is_term_slk;
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WINDOW *slk_window;
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int slk_format;
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#define SLK_FMT_3_2_3 0
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#define SLK_FMT_4_4 1
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int slk_nlabels;
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int slk_label_len;
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bool slk_hidden;
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struct __slk_label *slk_labels;
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#ifdef HAVE_WCHAR
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#define MB_LEN_MAX 8
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#define MAX_CBUF_SIZE MB_LEN_MAX
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int cbuf_head; /* header to cbuf */
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int cbuf_tail; /* tail to cbuf */
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int cbuf_cur; /* the current char in cbuf */
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mbstate_t sp; /* wide char processing state */
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char cbuf[ MAX_CBUF_SIZE ]; /* input character buffer */
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#endif /* HAVE_WCHAR */
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};
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extern char __GT; /* Gtty indicates tabs. */
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extern char __NONL; /* Term can't hack LF doing a CR. */
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extern char __UPPERCASE; /* Terminal is uppercase only. */
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extern int My_term; /* Use Def_term regardless. */
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extern const char *Def_term; /* Default terminal type. */
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extern SCREEN *_cursesi_screen; /* The current screen in use */
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/* Debugging options/functions. */
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#ifdef DEBUG
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#define __CTRACE_TSTAMP 0x00000001
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#define __CTRACE_MISC 0x00000002
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#define __CTRACE_INIT 0x00000004
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#define __CTRACE_SCREEN 0x00000008
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#define __CTRACE_WINDOW 0x00000010
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#define __CTRACE_REFRESH 0x00000020
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#define __CTRACE_COLOR 0x00000040
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#define __CTRACE_INPUT 0x00000080
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#define __CTRACE_OUTPUT 0x00000100
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#define __CTRACE_LINE 0x00000200
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#define __CTRACE_ATTR 0x00000400
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#define __CTRACE_ERASE 0x00000800
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#define __CTRACE_FILEIO 0x00001000
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#define __CTRACE_ALL 0x7fffffff
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void __CTRACE_init(void);
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void __CTRACE(int, const char *, ...) __attribute__((__format__(__printf__, 2, 3)));
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#endif
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/* Private functions. */
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int __cputchar_args(int, void *);
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void _cursesi_free_keymap(keymap_t *);
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int _cursesi_gettmode(SCREEN *);
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void _cursesi_reset_acs(SCREEN *);
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int _cursesi_addbyte(WINDOW *, __LINE **, int *, int *, int , attr_t, int);
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int _cursesi_addwchar(WINDOW *, __LINE **, int *, int *, const cchar_t *,
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int);
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int _cursesi_waddbytes(WINDOW *, const char *, int, attr_t, int);
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#ifdef HAVE_WCHAR
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void _cursesi_reset_wacs(SCREEN *);
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#endif /* HAVE_WCHAR */
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void _cursesi_resetterm(SCREEN *);
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int _cursesi_setterm(char *, SCREEN *);
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int __delay(void);
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unsigned int __hash_more(const void *, size_t, unsigned int);
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#define __hash(s, len) __hash_more((s), (len), 0u)
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void __id_subwins(WINDOW *);
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void __init_getch(SCREEN *);
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void __init_acs(SCREEN *);
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#ifdef HAVE_WCHAR
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void __init_get_wch(SCREEN *);
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void __init_wacs(SCREEN *);
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int __cputwchar_args( wchar_t, void * );
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int _cursesi_copy_nsp(nschar_t *, struct __ldata *);
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void __cursesi_free_nsp(nschar_t *);
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void __cursesi_win_free_nsp(WINDOW *);
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void __cursesi_putnsp(nschar_t *, const int, const int);
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void __cursesi_chtype_to_cchar(chtype, cchar_t *);
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#endif /* HAVE_WCHAR */
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int __unget(wint_t);
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int __mvcur(int, int, int, int, int);
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WINDOW *__newwin(SCREEN *, int, int, int, int, int);
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int __nodelay(void);
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int __notimeout(void);
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void __restartwin(void);
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void __restore_colors(void);
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void __restore_cursor_vis(void);
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void __restore_meta_state(void);
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void __restore_termios(void);
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void __restore_stophandler(void);
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void __restore_winchhandler(void);
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int __ripoffscreen(SCREEN *, int *);
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void __ripoffresize(SCREEN *);
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int __rippedlines(const SCREEN *);
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void __save_termios(void);
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void __set_color(WINDOW *win, attr_t attr);
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void __set_stophandler(void);
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void __set_winchhandler(void);
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void __set_subwin(WINDOW *, WINDOW *);
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int __slk_init(SCREEN *);
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void __slk_free(SCREEN *);
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int __slk_resize(SCREEN *, int cols);
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int __slk_noutrefresh(SCREEN *);
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void __startwin(SCREEN *);
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void __stop_signal_handler(int);
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int __stopwin(void);
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void __swflags(WINDOW *);
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void __sync(WINDOW *);
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int __timeout(int);
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int __touchline(WINDOW *, int, int, int);
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int __touchwin(WINDOW *);
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int __unripoffline(int (*)(WINDOW *, int));
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void __unsetattr(int);
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void __unset_color(WINDOW *win);
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int __waddch(WINDOW *, __LDATA *);
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int __wgetnstr(WINDOW *, char *, int);
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void __winch_signal_handler(int);
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/* Private #defines. */
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#define min(a,b) ((a) < (b) ? (a) : (b))
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#define max(a,b) ((a) > (b) ? (a ): (b))
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/* Private externs. */
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extern int __echoit;
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extern int __endwin;
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extern int __pfast;
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extern int __rawmode;
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extern int __noqch;
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extern attr_t __mask_op, __mask_me, __mask_ue, __mask_se;
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extern WINDOW *__virtscr;
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extern int __using_color;
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extern attr_t __default_color;
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