insdelln.c revision 1.14
1 /* $NetBSD: insdelln.c,v 1.14 2007/05/28 15:01:56 blymn Exp $ */ 2 3 /* 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Julian Coleman. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 #ifndef lint 41 __RCSID("$NetBSD: insdelln.c,v 1.14 2007/05/28 15:01:56 blymn Exp $"); 42 #endif /* not lint */ 43 44 /* 45 * Based on deleteln.c and insertln.c - 46 * Copyright (c) 1981, 1993, 1994 47 * The Regents of the University of California. All rights reserved. 48 */ 49 50 #include <string.h> 51 #include <stdlib.h> 52 53 #include "curses.h" 54 #include "curses_private.h" 55 56 #ifndef _CURSES_USE_MACROS 57 58 /* 59 * insdelln -- 60 * Insert or delete lines on stdscr, leaving (cury, curx) unchanged. 61 */ 62 int 63 insdelln(int lines) 64 { 65 return winsdelln(stdscr, lines); 66 } 67 68 #endif 69 70 /* 71 * winsdelln -- 72 * Insert or delete lines on the window, leaving (cury, curx) unchanged. 73 */ 74 int 75 winsdelln(WINDOW *win, int lines) 76 { 77 int y, i, last; 78 __LINE *temp; 79 #ifdef HAVE_WCHAR 80 __LDATA *lp; 81 #endif /* HAVE_WCHAR */ 82 attr_t attr; 83 84 #ifdef DEBUG 85 __CTRACE(__CTRACE_LINE, 86 "winsdelln: (%p) cury=%d lines=%d\n", win, win->cury, lines); 87 #endif 88 89 if (!lines) 90 return(OK); 91 92 if (__using_color && win != curscr) 93 attr = win->battr & __COLOR; 94 else 95 attr = 0; 96 97 if (lines > 0) { 98 /* Insert lines */ 99 if (win->cury < win->scr_t || win->cury > win->scr_b) { 100 /* Outside scrolling region */ 101 if (lines > win->maxy - win->cury) 102 lines = win->maxy - win->cury; 103 last = win->maxy - 1; 104 } else { 105 /* Inside scrolling region */ 106 if (lines > win->scr_b + 1 - win->cury) 107 lines = win->scr_b + 1 - win->cury; 108 last = win->scr_b; 109 } 110 for (y = last - lines; y >= win->cury; --y) { 111 win->lines[y]->flags &= ~__ISPASTEOL; 112 win->lines[y + lines]->flags &= ~__ISPASTEOL; 113 if (win->orig == NULL) { 114 temp = win->lines[y + lines]; 115 win->lines[y + lines] = win->lines[y]; 116 win->lines[y] = temp; 117 } else { 118 (void) memcpy(win->lines[y + lines]->line, 119 win->lines[y]->line, 120 (size_t) win->maxx * __LDATASIZE); 121 } 122 } 123 for (y = win->cury - 1 + lines; y >= win->cury; --y) 124 for (i = 0; i < win->maxx; i++) { 125 win->lines[y]->line[i].ch = win->bch; 126 win->lines[y]->line[i].attr = attr; 127 #ifndef HAVE_WCHAR 128 win->lines[y]->line[i].ch = win->bch; 129 #else 130 win->lines[y]->line[i].ch 131 = ( wchar_t )btowc(( int ) win->bch ); 132 lp = &win->lines[y]->line[i]; 133 if (_cursesi_copy_nsp(win->bnsp, lp) == ERR) 134 return ERR; 135 SET_WCOL( *lp, 1 ); 136 #endif /* HAVE_WCHAR */ 137 } 138 for (y = last; y >= win->cury; --y) 139 __touchline(win, y, 0, (int) win->maxx - 1); 140 } else { 141 /* Delete lines */ 142 lines = 0 - lines; 143 if (win->cury < win->scr_t || win->cury > win->scr_b) { 144 /* Outside scrolling region */ 145 if (lines > win->maxy - win->cury) 146 lines = win->maxy - win->cury; 147 last = win->maxy; 148 } else { 149 /* Inside scrolling region */ 150 if (lines > win->scr_b + 1 - win->cury) 151 lines = win->scr_b + 1 - win->cury; 152 last = win->scr_b + 1; 153 } 154 for (y = win->cury; y < last - lines; y++) { 155 win->lines[y]->flags &= ~__ISPASTEOL; 156 win->lines[y + lines]->flags &= ~__ISPASTEOL; 157 if (win->orig == NULL) { 158 temp = win->lines[y]; 159 win->lines[y] = win->lines[y + lines]; 160 win->lines[y + lines] = temp; 161 } else { 162 (void) memcpy(win->lines[y]->line, 163 win->lines[y + lines]->line, 164 (size_t) win->maxx * __LDATASIZE); 165 } 166 } 167 for (y = last - lines; y < last; y++) 168 for (i = 0; i < win->maxx; i++) { 169 win->lines[y]->line[i].ch = win->bch; 170 win->lines[y]->line[i].attr = attr; 171 #ifndef HAVE_WCHAR 172 win->lines[y]->line[i].ch = win->bch; 173 #else 174 win->lines[y]->line[i].ch 175 = (wchar_t)btowc((int) win->bch); 176 lp = &win->lines[y]->line[i]; 177 SET_WCOL( *lp, 1 ); 178 if (_cursesi_copy_nsp(win->bnsp, lp) == ERR) 179 return ERR; 180 #endif /* HAVE_WCHAR */ 181 } 182 for (y = win->cury; y < last; y++) 183 __touchline(win, y, 0, (int) win->maxx - 1); 184 } 185 if (win->orig != NULL) 186 __id_subwins(win->orig); 187 return (OK); 188 } 189
Indexes created Tue Sep 23 20:09:58 GMT 2025