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freebsd/contrib/nvi/tk/tk_screen.c
Peter Wemm b8ba871bd9 Import of nvi-1.79, minus a few bits that we dont need (eg: postscript
files, curses, db, regex etc that we already have).  The other glue will
follow shortly.

Obtained from: Keith Bostic <bostic@bostic.com>
1996-11-01 06:45:43 +00:00

87 lines
1.5 KiB
C

/*-
* Copyright (c) 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1993, 1994, 1995, 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "@(#)tk_screen.c 8.9 (Berkeley) 5/24/96";
#endif /* not lint */
#include <sys/types.h>
#include <sys/queue.h>
#include <bitstring.h>
#include <errno.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
#include "../common/common.h"
#include "tki.h"
/*
* tk_screen --
* Initialize/shutdown the Tcl/Tk screen.
*
* PUBLIC: int tk_screen __P((SCR *, u_int32_t));
*/
int
tk_screen(sp, flags)
SCR *sp;
u_int32_t flags;
{
TK_PRIVATE *tkp;
tkp = TKP(sp);
/* See if we're already in the right mode. */
if (LF_ISSET(SC_VI) && F_ISSET(sp, SC_SCR_VI))
return (0);
/* Ex isn't possible. */
if (LF_ISSET(SC_EX))
return (1);
/* Initialize terminal based information. */
if (tk_term_init(sp))
return (1);
/* Put up the first file name. */
if (tk_rename(sp))
return (1);
F_SET(tkp, TK_SCR_VI_INIT);
return (0);
}
/*
* tk_quit --
* Shutdown the screens.
*
* PUBLIC: int tk_quit __P((GS *));
*/
int
tk_quit(gp)
GS *gp;
{
TK_PRIVATE *tkp;
int rval;
/* Clean up the terminal mappings. */
rval = tk_term_end(gp);
tkp = GTKP(gp);
F_CLR(tkp, TK_SCR_VI_INIT);
return (rval);
}