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/* $OpenBSD: ex_screen.c,v 1.10 2016/01/06 22:28:52 millert Exp $ */
/*-
* 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"
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/time.h>
#include <bitstring.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../common/common.h"
#include "../vi/vi.h"
/*
* ex_bg -- :bg
* Hide the screen.
*
* PUBLIC: int ex_bg(SCR *, EXCMD *);
*/
int
ex_bg(SCR *sp, EXCMD *cmdp)
{
return (vs_bg(sp));
}
/*
* ex_fg -- :fg [file]
* Show the screen.
*
* PUBLIC: int ex_fg(SCR *, EXCMD *);
*/
int
ex_fg(SCR *sp, EXCMD *cmdp)
{
SCR *nsp;
int newscreen;
newscreen = F_ISSET(cmdp, E_NEWSCREEN);
if (vs_fg(sp, &nsp, cmdp->argc ? cmdp->argv[0]->bp : NULL, newscreen))
return (1);
/* Set up the switch. */
if (newscreen) {
sp->nextdisp = nsp;
F_SET(sp, SC_SSWITCH);
}
return (0);
}
/*
* ex_resize -- :resize [+-]rows
* Change the screen size.
*
* PUBLIC: int ex_resize(SCR *, EXCMD *);
*/
int
ex_resize(SCR *sp, EXCMD *cmdp)
{
adj_t adj;
switch (FL_ISSET(cmdp->iflags,
E_C_COUNT | E_C_COUNT_NEG | E_C_COUNT_POS)) {
case E_C_COUNT:
adj = A_SET;
break;
case E_C_COUNT | E_C_COUNT_NEG:
adj = A_DECREASE;
break;
case E_C_COUNT | E_C_COUNT_POS:
adj = A_INCREASE;
break;
default:
ex_emsg(sp, cmdp->cmd->usage, EXM_USAGE);
return (1);
}
return (vs_resize(sp, cmdp->count, adj));
}
/*
* ex_sdisplay --
* Display the list of screens.
*
* PUBLIC: int ex_sdisplay(SCR *);
*/
int
ex_sdisplay(SCR *sp)
{
GS *gp;
SCR *tsp;
int cnt, col, len, sep;
gp = sp->gp;
if (TAILQ_EMPTY(&gp->hq)) {
msgq(sp, M_INFO, "No background screens to display");
return (0);
}
col = len = sep = 0;
cnt = 1;
TAILQ_FOREACH(tsp, &gp->hq, q) {
if (INTERRUPTED(sp))
break;
col += len = strlen(tsp->frp->name) + sep;
if (col >= sp->cols - 1) {
col = len;
sep = 0;
(void)ex_puts(sp, "\n");
} else if (cnt != 1) {
sep = 1;
(void)ex_puts(sp, " ");
}
(void)ex_puts(sp, tsp->frp->name);
++cnt;
}
if (!INTERRUPTED(sp))
(void)ex_puts(sp, "\n");
return (0);
}
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