1 /* $NetBSD: insstr.c,v 1.3 2009/07/22 16:57:15 roy Exp $ */ 2 3 /* 4 * Copyright (c) 2005 The NetBSD Foundation Inc. 5 * All rights reserved. 6 * 7 * This code is derived from code donated to the NetBSD Foundation 8 * by Ruibiao Qiu <ruibiao@arl.wustl.edu,ruibiao@gmail.com>. 9 * 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the NetBSD Foundation nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND 24 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 25 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 26 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #include <sys/cdefs.h> 38 #ifndef lint 39 __RCSID("$NetBSD: insstr.c,v 1.3 2009/07/22 16:57:15 roy Exp $"); 40 #endif /* not lint */ 41 42 #include <string.h> 43 #include <stdlib.h> 44 45 #include "curses.h" 46 #include "curses_private.h" 47 48 #ifndef _CURSES_USE_MACROS 49 50 /* 51 * insstr -- 52 * insert a multi-byte character string into the current window 53 */ 54 int 55 insstr(const char *str) 56 { 57 return winsstr(stdscr, str); 58 } 59 60 /* 61 * insnstr -- 62 * insert a multi-byte character string into the current window 63 * with at most n characters 64 */ 65 int 66 insnstr(const char *str, int n) 67 { 68 return winsnstr(stdscr, str, n); 69 } 70 71 /* 72 * mvinsstr -- 73 * Do an insert-string on the line at (y, x). 74 */ 75 int 76 mvinsstr(int y, int x, const char *str) 77 { 78 return mvwinsstr(stdscr, y, x, str); 79 } 80 81 /* 82 * mvinsnstr -- 83 * Do an insert-n-string on the line at (y, x). 84 */ 85 int 86 mvinsnstr(int y, int x, const char *str, int n) 87 { 88 return mvwinsnstr(stdscr, y, x, str, n); 89 } 90 91 /* 92 * mvwinsstr -- 93 * Do an insert-string on the line at (y, x) in the given window. 94 */ 95 int 96 mvwinsstr(WINDOW *win, int y, int x, const char *str) 97 { 98 if (wmove(win, y, x) == ERR) 99 return ERR; 100 101 return winsstr(stdscr, str); 102 } 103 104 /* 105 * mvwinsnstr -- 106 * Do an insert-n-string on the line at (y, x) in the given window. 107 */ 108 int 109 mvwinsnstr(WINDOW *win, int y, int x, const char *str, int n) 110 { 111 if (wmove(win, y, x) == ERR) 112 return ERR; 113 114 return winsnstr(stdscr, str, n); 115 } 116 117 #endif 118 119 /* 120 * winsstr -- 121 * Do an insert-string on the line, leaving (cury, curx) unchanged. 122 * No wrapping. 123 */ 124 int 125 winsstr(WINDOW *win, const char *str) 126 { 127 return winsnstr( win, str, -1 ); 128 } 129 130 /* 131 * winsnstr -- 132 * Do an insert-n-string on the line, leaving (cury, curx) unchanged. 133 * Performs wrapping. 134 */ 135 int 136 winsnstr(WINDOW *win, const char *str, int n) 137 { 138 __LDATA *end, *temp1, *temp2; 139 const char *scp; 140 int len, x; 141 __LINE *lnp; 142 #ifdef HAVE_WCHAR 143 nschar_t *np, *tnp; 144 #endif /* HAVE_WCHAR */ 145 146 /* find string length */ 147 if ( n > 0 ) 148 for ( scp = str, len = 0; n-- && *scp++; ++len ); 149 else 150 for ( scp = str, len = 0; *scp++; ++len ); 151 #ifdef DEBUG 152 __CTRACE(__CTRACE_INPUT, "winsnstr: len = %d\n", len); 153 #endif /* DEBUG */ 154 155 /* move string */ 156 end = &win->alines[win->cury]->line[win->curx]; 157 if ( len < win->maxx - win->curx ) { 158 #ifdef DEBUG 159 __CTRACE(__CTRACE_INPUT, "winsnstr: shift %d cells\n", len); 160 #endif /* DEBUG */ 161 temp1 = &win->alines[win->cury]->line[win->maxx - 1]; 162 temp2 = temp1 - len; 163 while (temp2 >= end) { 164 #ifdef HAVE_WCHAR 165 np = temp1->nsp; 166 if (np){ 167 while ( np ) { 168 tnp = np->next; 169 free( np ); 170 np = tnp; 171 } 172 temp1->nsp = NULL; 173 } 174 #endif /* HAVE_WCHAR */ 175 (void) memcpy(temp1, temp2, sizeof(__LDATA)); 176 temp1--, temp2--; 177 } 178 } 179 180 for ( scp = str, temp1 = end, x = win->curx; 181 *scp && x < len + win->curx && x < win->maxx; 182 scp++, temp1++, x++ ) { 183 temp1->ch = (wchar_t)*scp & __CHARTEXT; 184 temp1->attr = win->wattr; 185 #ifdef HAVE_WCHAR 186 SET_WCOL( *temp1, 1 ); 187 #endif /* HAVE_WCHAR */ 188 } 189 #ifdef DEBUG 190 { 191 int i; 192 193 for ( i = win->curx; i < win->curx + len; i++ ) { 194 __CTRACE(__CTRACE_INPUT, 195 "winsnstr: (%d,%d)=('%c',%x)\n", win->cury, i, 196 win->alines[win->cury]->line[i].ch, 197 win->alines[win->cury]->line[i].attr); 198 } 199 } 200 #endif /* DEBUG */ 201 lnp = win->alines[ win->cury ]; 202 lnp->flags |= __ISDIRTY; 203 if ( win->ch_off < *lnp->firstchp ) 204 *lnp->firstchp = win->ch_off; 205 if ( win->ch_off + win->maxx - 1 > *lnp->lastchp ) 206 *lnp->lastchp = win->ch_off + win->maxx - 1; 207 __touchline(win, (int)win->cury, (int)win->curx, (int)win->maxx - 1); 208 return OK; 209 } 210