insdelln.c revision 1.3
1 1.3 blymn /* $NetBSD: insdelln.c,v 1.3 2000/04/15 13:17:04 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 1.3 blymn #ifndef _CURSES_USE_MACROS 51 1.3 blymn 52 1.3 blymn /* 53 1.3 blymn * insdelln -- 54 1.3 blymn * Insert or delete lines on stdscr, leaving (cury, curx) unchanged. 55 1.3 blymn */ 56 1.3 blymn int 57 1.3 blymn insdelln(int lines) 58 1.3 blymn { 59 1.3 blymn return winsdelln(stdscr, lines); 60 1.3 blymn } 61 1.3 blymn 62 1.3 blymn #endif 63 1.3 blymn 64 1.2 blymn /* 65 1.2 blymn * winsdelln -- 66 1.2 blymn * Insert or delete lines on the window, leaving (cury, curx) unchanged. 67 1.2 blymn */ 68 1.2 blymn int 69 1.3 blymn winsdelln(WINDOW *win, int lines) 70 1.2 blymn { 71 1.2 blymn int y, i; 72 1.2 blymn __LINE *temp; 73 1.2 blymn 74 1.2 blymn #ifdef DEBUG 75 1.2 blymn __CTRACE("winsdelln: (%0.2o) cury=%d lines=%d\n", win, win->cury, 76 1.2 blymn lines); 77 1.2 blymn #endif 78 1.2 blymn 79 1.2 blymn if (!lines) 80 1.2 blymn return(OK); 81 1.2 blymn 82 1.2 blymn if (lines > 0) { 83 1.2 blymn /* Insert lines */ 84 1.2 blymn if (lines > win->maxy - win->cury) 85 1.2 blymn lines = win->maxy - win->cury; 86 1.2 blymn for (y = win->maxy - lines - 1 ; y >= win->cury; --y) { 87 1.2 blymn win->lines[y]->flags &= ~__ISPASTEOL; 88 1.2 blymn win->lines[y + lines]->flags &= ~__ISPASTEOL; 89 1.2 blymn if (win->orig == NULL) { 90 1.2 blymn temp = win->lines[y + lines]; 91 1.2 blymn win->lines[y + lines] = win->lines[y]; 92 1.2 blymn win->lines[y] = temp; 93 1.2 blymn } else { 94 1.2 blymn (void) memcpy(win->lines[y + lines]->line, 95 1.2 blymn win->lines[y]->line, 96 1.2 blymn (size_t) win->maxx * __LDATASIZE * lines); 97 1.2 blymn temp = win->lines[y]; 98 1.2 blymn } 99 1.2 blymn } 100 1.2 blymn for (y = win->cury - 1 + lines; y >= win->cury; --y) 101 1.2 blymn for (i = 0; i < win->maxx; i++) { 102 1.2 blymn win->lines[y]->line[i].ch = ' '; 103 1.2 blymn win->lines[y]->line[i].attr = 0; 104 1.2 blymn } 105 1.2 blymn for (y = win->maxy - 1; y >= win->cury; --y) 106 1.2 blymn __touchline(win, y, 0, (int) win->maxx - 1, 0); 107 1.2 blymn } else { 108 1.2 blymn /* Delete lines */ 109 1.2 blymn lines = 0 - lines; 110 1.2 blymn if (lines > win->maxy - win->cury) 111 1.2 blymn lines = win->maxy - win->cury; 112 1.2 blymn for (y = win->cury; y < win->maxy - lines; y++) { 113 1.2 blymn win->lines[y]->flags &= ~__ISPASTEOL; 114 1.2 blymn win->lines[y + lines]->flags &= ~__ISPASTEOL; 115 1.2 blymn if (win->orig == NULL) { 116 1.2 blymn temp = win->lines[y]; 117 1.2 blymn win->lines[y] = win->lines[y + lines]; 118 1.2 blymn win->lines[y + lines] = temp; 119 1.2 blymn } else { 120 1.2 blymn (void) memcpy(win->lines[y]->line, 121 1.2 blymn win->lines[y + lines]->line, 122 1.2 blymn (size_t) win->maxx * __LDATASIZE * lines); 123 1.2 blymn temp = win->lines[y + lines]; 124 1.2 blymn } 125 1.2 blymn } 126 1.2 blymn for (y = win->maxy - lines; y < win->maxy; y++) 127 1.2 blymn for (i = 0; i < win->maxx; i++) { 128 1.2 blymn win->lines[y]->line[i].ch = ' '; 129 1.2 blymn win->lines[y]->line[i].attr = 0; 130 1.2 blymn } 131 1.2 blymn for (y = win->cury; y < win->maxy; y++) 132 1.2 blymn __touchline(win, y, 0, (int) win->maxx - 1, 0); 133 1.2 blymn } 134 1.2 blymn if (win->orig != NULL) 135 1.2 blymn __id_subwins(win); 136 1.2 blymn return (OK); 137 1.2 blymn } 138
Indexes created Tue Sep 23 21:09:50 GMT 2025