Changing all of the occurences of the "vi" and "ex" directory to "vi.d"

[unix-history] / usr.bin / vi / nex / ex_screen.c

/*-
* Copyright (c) 1993
*      The Regents of the University of California.  All rights reserved.
*
* 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. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by the University of
*      California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*/

#ifndef lint
static char sccsid[] = "@(#)ex_screen.c 8.10 (Berkeley) 12/2/93";
#endif /* not lint */

#include <sys/types.h>

#include <stdlib.h>
#include <string.h>

#include "vi.h"
#include "excmd.h"

/*
* ex_split --  :s[plit] [file ...]
*      Split the screen, optionally setting the file list.
*/
int
ex_split(sp, ep, cmdp)
       SCR *sp;
       EXF *ep;
       EXCMDARG *cmdp;
{
       return (sp->s_split(sp, cmdp->argc ? cmdp->argv : NULL));
}

/*
* ex_bg --     :bg
*      Hide the screen.
*/
int
ex_bg(sp, ep, cmdp)
       SCR *sp;
       EXF *ep;
       EXCMDARG *cmdp;
{
       return (sp->s_bg(sp));
}

/*
* ex_fg --     :fg [file]
*      Show the screen.
*/
int
ex_fg(sp, ep, cmdp)
       SCR *sp;
       EXF *ep;
       EXCMDARG *cmdp;
{
       return (sp->s_fg(sp, cmdp->argc ? cmdp->argv[0]->bp : NULL));
}

/*
* ex_resize -- :resize [change]
*      Change the screen size.
*/
int
ex_resize(sp, ep, cmdp)
       SCR *sp;
       EXF *ep;
       EXCMDARG *cmdp;
{
       if (!F_ISSET(cmdp, E_COUNT))
               cmdp->count = 1;
       return (sp->s_rabs(sp, cmdp->count));
}

/*
* ex_sdisplay --
*      Display the list of screens.
*/
int
ex_sdisplay(sp, ep)
       SCR *sp;
       EXF *ep;
{
       SCR *tsp;
       int cnt, col, len, sep;

       if ((tsp = sp->gp->hq.cqh_first) == (void *)&sp->gp->hq) {
               (void)ex_printf(EXCOOKIE,
                   "No backgrounded screens to display.\n");
               return (0);
       }

       col = len = sep = 0;
       for (cnt = 1; tsp != (void *)&sp->gp->hq; tsp = tsp->q.cqe_next) {
               col += len = strlen(FILENAME(tsp->frp)) + sep;
               if (col >= sp->cols - 1) {
                       col = len;
                       sep = 0;
                       (void)ex_printf(EXCOOKIE, "\n");
               } else if (cnt != 1) {
                       sep = 1;
                       (void)ex_printf(EXCOOKIE, " ");
               }
               (void)ex_printf(EXCOOKIE, "%s", FILENAME(tsp->frp));
               ++cnt;
       }
       (void)ex_printf(EXCOOKIE, "\n");
       return (0);
}