projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 18ae9d6b AS |
1 | /*- |
| 2 | * Copyright (c) 1993 | |
| 3 | * The Regents of the University of California. All rights reserved. | |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms, with or without | |
| 6 | * modification, are permitted provided that the following conditions | |
| 7 | * are met: | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| 13 | * 3. All advertising materials mentioning features or use of this software | |
| 14 | * must display the following acknowledgement: | |
| 15 | * This product includes software developed by the University of | |
| 16 | * California, Berkeley and its contributors. | |
| 17 | * 4. Neither the name of the University nor the names of its contributors | |
| 18 | * may be used to endorse or promote products derived from this software | |
| 19 | * without specific prior written permission. | |
| 20 | * | |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 31 | * SUCH DAMAGE. | |
| 32 | */ | |
| 33 | ||
| 34 | #ifndef lint | |
| 35 | static char sccsid[] = "@(#)ex_screen.c 8.10 (Berkeley) 12/2/93"; | |
| 36 | #endif /* not lint */ | |
| 37 | ||
| 38 | #include <sys/types.h> | |
| 39 | ||
| 40 | #include <stdlib.h> | |
| 41 | #include <string.h> | |
| 42 | ||
| 43 | #include "vi.h" | |
| 44 | #include "excmd.h" | |
| 45 | ||
| 46 | /* | |
| 47 | * ex_split -- :s[plit] [file ...] | |
| 48 | * Split the screen, optionally setting the file list. | |
| 49 | */ | |
| 50 | int | |
| 51 | ex_split(sp, ep, cmdp) | |
| 52 | SCR *sp; | |
| 53 | EXF *ep; | |
| 54 | EXCMDARG *cmdp; | |
| 55 | { | |
| 56 | return (sp->s_split(sp, cmdp->argc ? cmdp->argv : NULL)); | |
| 57 | } | |
| 58 | ||
| 59 | /* | |
| 60 | * ex_bg -- :bg | |
| 61 | * Hide the screen. | |
| 62 | */ | |
| 63 | int | |
| 64 | ex_bg(sp, ep, cmdp) | |
| 65 | SCR *sp; | |
| 66 | EXF *ep; | |
| 67 | EXCMDARG *cmdp; | |
| 68 | { | |
| 69 | return (sp->s_bg(sp)); | |
| 70 | } | |
| 71 | ||
| 72 | /* | |
| 73 | * ex_fg -- :fg [file] | |
| 74 | * Show the screen. | |
| 75 | */ | |
| 76 | int | |
| 77 | ex_fg(sp, ep, cmdp) | |
| 78 | SCR *sp; | |
| 79 | EXF *ep; | |
| 80 | EXCMDARG *cmdp; | |
| 81 | { | |
| 82 | return (sp->s_fg(sp, cmdp->argc ? cmdp->argv[0]->bp : NULL)); | |
| 83 | } | |
| 84 | ||
| 85 | /* | |
| 86 | * ex_resize -- :resize [change] | |
| 87 | * Change the screen size. | |
| 88 | */ | |
| 89 | int | |
| 90 | ex_resize(sp, ep, cmdp) | |
| 91 | SCR *sp; | |
| 92 | EXF *ep; | |
| 93 | EXCMDARG *cmdp; | |
| 94 | { | |
| 95 | if (!F_ISSET(cmdp, E_COUNT)) | |
| 96 | cmdp->count = 1; | |
| 97 | return (sp->s_rabs(sp, cmdp->count)); | |
| 98 | } | |
| 99 | ||
| 100 | /* | |
| 101 | * ex_sdisplay -- | |
| 102 | * Display the list of screens. | |
| 103 | */ | |
| 104 | int | |
| 105 | ex_sdisplay(sp, ep) | |
| 106 | SCR *sp; | |
| 107 | EXF *ep; | |
| 108 | { | |
| 109 | SCR *tsp; | |
| 110 | int cnt, col, len, sep; | |
| 111 | ||
| 112 | if ((tsp = sp->gp->hq.cqh_first) == (void *)&sp->gp->hq) { | |
| 113 | (void)ex_printf(EXCOOKIE, | |
| 114 | "No backgrounded screens to display.\n"); | |
| 115 | return (0); | |
| 116 | } | |
| 117 | ||
| 118 | col = len = sep = 0; | |
| 119 | for (cnt = 1; tsp != (void *)&sp->gp->hq; tsp = tsp->q.cqe_next) { | |
| 120 | col += len = strlen(FILENAME(tsp->frp)) + sep; | |
| 121 | if (col >= sp->cols - 1) { | |
| 122 | col = len; | |
| 123 | sep = 0; | |
| 124 | (void)ex_printf(EXCOOKIE, "\n"); | |
| 125 | } else if (cnt != 1) { | |
| 126 | sep = 1; | |
| 127 | (void)ex_printf(EXCOOKIE, " "); | |
| 128 | } | |
| 129 | (void)ex_printf(EXCOOKIE, "%s", FILENAME(tsp->frp)); | |
| 130 | ++cnt; | |
| 131 | } | |
| 132 | (void)ex_printf(EXCOOKIE, "\n"); | |
| 133 | return (0); | |
| 134 | } |