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/* $OpenBSD: ex_screen.c,v 1.10 2016/01/06 22:28:52 millert Exp $ */ |
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/*- |
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* Copyright (c) 1993, 1994 |
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* The Regents of the University of California. All rights reserved. |
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* Copyright (c) 1993, 1994, 1995, 1996 |
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* Keith Bostic. All rights reserved. |
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* |
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* See the LICENSE file for redistribution information. |
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*/ |
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#include "config.h" |
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#include <sys/types.h> |
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#include <sys/queue.h> |
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#include <sys/time.h> |
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#include <bitstring.h> |
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#include <limits.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include "../common/common.h" |
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#include "../vi/vi.h" |
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/* |
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* ex_bg -- :bg |
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* Hide the screen. |
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* |
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* PUBLIC: int ex_bg(SCR *, EXCMD *); |
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*/ |
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int |
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ex_bg(SCR *sp, EXCMD *cmdp) |
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{ |
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return (vs_bg(sp)); |
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} |
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/* |
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* ex_fg -- :fg [file] |
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* Show the screen. |
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* |
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* PUBLIC: int ex_fg(SCR *, EXCMD *); |
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*/ |
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int |
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ex_fg(SCR *sp, EXCMD *cmdp) |
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{ |
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SCR *nsp; |
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int newscreen; |
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newscreen = F_ISSET(cmdp, E_NEWSCREEN); |
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if (vs_fg(sp, &nsp, cmdp->argc ? cmdp->argv[0]->bp : NULL, newscreen)) |
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return (1); |
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/* Set up the switch. */ |
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if (newscreen) { |
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sp->nextdisp = nsp; |
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F_SET(sp, SC_SSWITCH); |
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} |
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return (0); |
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} |
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/* |
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* ex_resize -- :resize [+-]rows |
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* Change the screen size. |
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* |
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* PUBLIC: int ex_resize(SCR *, EXCMD *); |
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*/ |
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int |
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ex_resize(SCR *sp, EXCMD *cmdp) |
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{ |
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adj_t adj; |
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switch (FL_ISSET(cmdp->iflags, |
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E_C_COUNT | E_C_COUNT_NEG | E_C_COUNT_POS)) { |
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case E_C_COUNT: |
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adj = A_SET; |
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break; |
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case E_C_COUNT | E_C_COUNT_NEG: |
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adj = A_DECREASE; |
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break; |
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case E_C_COUNT | E_C_COUNT_POS: |
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adj = A_INCREASE; |
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break; |
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default: |
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ex_emsg(sp, cmdp->cmd->usage, EXM_USAGE); |
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return (1); |
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} |
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return (vs_resize(sp, cmdp->count, adj)); |
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} |
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/* |
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* ex_sdisplay -- |
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* Display the list of screens. |
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* |
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* PUBLIC: int ex_sdisplay(SCR *); |
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*/ |
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int |
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ex_sdisplay(SCR *sp) |
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{ |
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GS *gp; |
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SCR *tsp; |
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int cnt, col, len, sep; |
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gp = sp->gp; |
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if (TAILQ_EMPTY(&gp->hq)) { |
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msgq(sp, M_INFO, "No background screens to display"); |
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return (0); |
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} |
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col = len = sep = 0; |
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cnt = 1; |
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TAILQ_FOREACH(tsp, &gp->hq, q) { |
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if (INTERRUPTED(sp)) |
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break; |
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col += len = strlen(tsp->frp->name) + sep; |
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if (col >= sp->cols - 1) { |
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col = len; |
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sep = 0; |
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(void)ex_puts(sp, "\n"); |
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} else if (cnt != 1) { |
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sep = 1; |
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(void)ex_puts(sp, " "); |
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} |
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(void)ex_puts(sp, tsp->frp->name); |
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++cnt; |
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} |
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if (!INTERRUPTED(sp)) |
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(void)ex_puts(sp, "\n"); |
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return (0); |
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} |