1 /* 2 * Copyright (c) 1981, 1993, 1994 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[] = "@(#)insch.c 8.2 (Berkeley) 5/4/94"; 36 #endif /* not lint */ 37 38 #include <string.h> 39 40 #include "curses.h" 41 42 /* 43 * winsch -- 44 * Do an insert-char on the line, leaving (cury, curx) unchanged. 45 */ 46 int 47 winsch(win, ch) 48 register WINDOW *win; 49 int ch; 50 { 51 52 register __LDATA *end, *temp1, *temp2; 53 54 end = &win->lines[win->cury]->line[win->curx]; 55 temp1 = &win->lines[win->cury]->line[win->maxx - 1]; 56 temp2 = temp1 - 1; 57 while (temp1 > end) { 58 (void)memcpy(temp1, temp2, sizeof(__LDATA)); 59 temp1--, temp2--; 60 } 61 temp1->ch = ch; 62 temp1->attr &= ~__STANDOUT; 63 __touchline(win, win->cury, win->curx, win->maxx - 1, 0); 64 if (win->cury == LINES - 1 && 65 (win->lines[LINES - 1]->line[COLS - 1].ch != ' ' || 66 win->lines[LINES -1]->line[COLS - 1].attr != 0)) 67 if (win->flags & __SCROLLOK) { 68 wrefresh(win); 69 scroll(win); 70 win->cury--; 71 } else 72 return (ERR); 73 return (OK); 74 } 75