insdelln.c revision 1.2
1 1.2 blymn /* $NetBSD: insdelln.c,v 1.2 2000/04/11 13:57:09 blymn Exp $ */ 2 1.2 blymn 3 1.2 blymn /* 4 1.2 blymn * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 1.2 blymn * All rights reserved. 6 1.2 blymn * 7 1.2 blymn * This code is derived from software contributed to The NetBSD Foundation 8 1.2 blymn * by Julian Coleman. 9 1.2 blymn * 10 1.2 blymn * Redistribution and use in source and binary forms, with or without 11 1.2 blymn * modification, are permitted provided that the following conditions 12 1.2 blymn * are met: 13 1.2 blymn * 1. Redistributions of source code must retain the above copyright 14 1.2 blymn * notice, this list of conditions and the following disclaimer. 15 1.2 blymn * 2. Redistributions in binary form must reproduce the above copyright 16 1.2 blymn * notice, this list of conditions and the following disclaimer in the 17 1.2 blymn * documentation and/or other materials provided with the distribution. 18 1.2 blymn * 3. All advertising materials mentioning features or use of this software 19 1.2 blymn * must display the following acknowledgement: 20 1.2 blymn * This product includes software developed by the NetBSD 21 1.2 blymn * Foundation, Inc. and its contributors. 22 1.2 blymn * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.2 blymn * contributors may be used to endorse or promote products derived 24 1.2 blymn * from this software without specific prior written permission. 25 1.2 blymn * 26 1.2 blymn * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.2 blymn * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.2 blymn * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.2 blymn * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.2 blymn * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.2 blymn * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.2 blymn * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.2 blymn * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.2 blymn * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.2 blymn * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.2 blymn * POSSIBILITY OF SUCH DAMAGE. 37 1.2 blymn */ 38 1.2 blymn 39 1.2 blymn /* 40 1.2 blymn * Based on deleteln.c and insertln.c - 41 1.2 blymn * Copyright (c) 1981, 1993, 1994 42 1.2 blymn * The Regents of the University of California. All rights reserved. 43 1.2 blymn */ 44 1.2 blymn 45 1.2 blymn #include <string.h> 46 1.2 blymn 47 1.2 blymn #include "curses.h" 48 1.2 blymn #include "curses_private.h" 49 1.2 blymn 50 1.2 blymn /* 51 1.2 blymn * winsdelln -- 52 1.2 blymn * Insert or delete lines on the window, leaving (cury, curx) unchanged. 53 1.2 blymn */ 54 1.2 blymn int 55 1.2 blymn winsdelln(win, lines) 56 1.2 blymn WINDOW *win; 57 1.2 blymn int lines; 58 1.2 blymn { 59 1.2 blymn int y, i; 60 1.2 blymn __LINE *temp; 61 1.2 blymn 62 1.2 blymn #ifdef DEBUG 63 1.2 blymn __CTRACE("winsdelln: (%0.2o) cury=%d lines=%d\n", win, win->cury, 64 1.2 blymn lines); 65 1.2 blymn #endif 66 1.2 blymn 67 1.2 blymn if (!lines) 68 1.2 blymn return(OK); 69 1.2 blymn 70 1.2 blymn if (lines > 0) { 71 1.2 blymn /* Insert lines */ 72 1.2 blymn if (lines > win->maxy - win->cury) 73 1.2 blymn lines = win->maxy - win->cury; 74 1.2 blymn for (y = win->maxy - lines - 1 ; y >= win->cury; --y) { 75 1.2 blymn win->lines[y]->flags &= ~__ISPASTEOL; 76 1.2 blymn win->lines[y + lines]->flags &= ~__ISPASTEOL; 77 1.2 blymn if (win->orig == NULL) { 78 1.2 blymn temp = win->lines[y + lines]; 79 1.2 blymn win->lines[y + lines] = win->lines[y]; 80 1.2 blymn win->lines[y] = temp; 81 1.2 blymn } else { 82 1.2 blymn (void) memcpy(win->lines[y + lines]->line, 83 1.2 blymn win->lines[y]->line, 84 1.2 blymn (size_t) win->maxx * __LDATASIZE * lines); 85 1.2 blymn temp = win->lines[y]; 86 1.2 blymn } 87 1.2 blymn } 88 1.2 blymn for (y = win->cury - 1 + lines; y >= win->cury; --y) 89 1.2 blymn for (i = 0; i < win->maxx; i++) { 90 1.2 blymn win->lines[y]->line[i].ch = ' '; 91 1.2 blymn win->lines[y]->line[i].attr = 0; 92 1.2 blymn } 93 1.2 blymn for (y = win->maxy - 1; y >= win->cury; --y) 94 1.2 blymn __touchline(win, y, 0, (int) win->maxx - 1, 0); 95 1.2 blymn } else { 96 1.2 blymn /* Delete lines */ 97 1.2 blymn lines = 0 - lines; 98 1.2 blymn if (lines > win->maxy - win->cury) 99 1.2 blymn lines = win->maxy - win->cury; 100 1.2 blymn for (y = win->cury; y < win->maxy - lines; y++) { 101 1.2 blymn win->lines[y]->flags &= ~__ISPASTEOL; 102 1.2 blymn win->lines[y + lines]->flags &= ~__ISPASTEOL; 103 1.2 blymn if (win->orig == NULL) { 104 1.2 blymn temp = win->lines[y]; 105 1.2 blymn win->lines[y] = win->lines[y + lines]; 106 1.2 blymn win->lines[y + lines] = temp; 107 1.2 blymn } else { 108 1.2 blymn (void) memcpy(win->lines[y]->line, 109 1.2 blymn win->lines[y + lines]->line, 110 1.2 blymn (size_t) win->maxx * __LDATASIZE * lines); 111 1.2 blymn temp = win->lines[y + lines]; 112 1.2 blymn } 113 1.2 blymn } 114 1.2 blymn for (y = win->maxy - lines; y < win->maxy; y++) 115 1.2 blymn for (i = 0; i < win->maxx; i++) { 116 1.2 blymn win->lines[y]->line[i].ch = ' '; 117 1.2 blymn win->lines[y]->line[i].attr = 0; 118 1.2 blymn } 119 1.2 blymn for (y = win->cury; y < win->maxy; y++) 120 1.2 blymn __touchline(win, y, 0, (int) win->maxx - 1, 0); 121 1.2 blymn } 122 1.2 blymn if (win->orig != NULL) 123 1.2 blymn __id_subwins(win); 124 1.2 blymn return (OK); 125 1.2 blymn } 126
Indexes created Mon Sep 22 13:09:51 GMT 2025