addbytes.c revision 1.15
1 /* $NetBSD: addbytes.c,v 1.15 2000/04/11 13:57:08 blymn Exp $ */ 2 3 /* 4 * Copyright (c) 1987, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "@(#)addbytes.c 8.4 (Berkeley) 5/4/94"; 40 #else 41 __RCSID("$NetBSD: addbytes.c,v 1.15 2000/04/11 13:57:08 blymn Exp $"); 42 #endif 43 #endif /* not lint */ 44 45 #include "curses.h" 46 #include "curses_private.h" 47 48 #define SYNCH_IN {y = win->cury; x = win->curx;} 49 #define SYNCH_OUT {win->cury = y; win->curx = x;} 50 51 /* 52 * waddbytes -- 53 * Add the character to the current position in the given window. 54 */ 55 int 56 __waddbytes(win, bytes, count, attr) 57 WINDOW *win; 58 const char *bytes; 59 int count; 60 attr_t attr; 61 { 62 static char blanks[] = " "; 63 int c, newx, x, y; 64 attr_t attributes; 65 __LINE *lp; 66 67 SYNCH_IN; 68 69 while (count--) { 70 c = *bytes++; 71 #ifdef DEBUG 72 __CTRACE("ADDBYTES('%c') at (%d, %d)\n", c, y, x); 73 #endif 74 switch (c) { 75 case '\t': 76 SYNCH_OUT; 77 if (waddbytes(win, blanks, 8 - (x % 8)) == ERR) 78 return (ERR); 79 SYNCH_IN; 80 break; 81 82 default: 83 #ifdef DEBUG 84 __CTRACE("ADDBYTES(%0.2o, %d, %d)\n", win, y, x); 85 #endif 86 87 lp = win->lines[y]; 88 if (lp->flags & __ISPASTEOL) { 89 lp->flags &= ~__ISPASTEOL; 90 newline: if (y == win->maxy - 1) { 91 if (win->flags & __SCROLLOK) { 92 SYNCH_OUT; 93 scroll(win); 94 SYNCH_IN; 95 lp = win->lines[y]; 96 x = 0; 97 } else 98 return (ERR); 99 } else { 100 y++; 101 lp = win->lines[y]; 102 x = 0; 103 } 104 if (c == '\n') 105 break; 106 } 107 108 attributes = '\0'; 109 if (win->wattr & __STANDOUT || attr & __STANDOUT) 110 attributes |= __STANDOUT; 111 if (win->wattr & __UNDERSCORE || attr & __UNDERSCORE) 112 attributes |= __UNDERSCORE; 113 if (win->wattr & __REVERSE || attr & __REVERSE) 114 attributes |= __REVERSE; 115 if (win->wattr & __BLINK || attr & __BLINK) 116 attributes |= __BLINK; 117 if (win->wattr & __DIM || attr & __DIM) 118 attributes |= __DIM; 119 if (win->wattr & __BOLD || attr & __BOLD) 120 attributes |= __BOLD; 121 if (win->wattr & __BLANK || attr & __BLANK) 122 attributes |= __BLANK; 123 if (win->wattr & __PROTECT || attr & __PROTECT) 124 attributes |= __PROTECT; 125 if (win->wattr & __ALTCHARSET || attr & __ALTCHARSET) 126 attributes |= __ALTCHARSET; 127 #ifdef DEBUG 128 __CTRACE("ADDBYTES: 1: y = %d, x = %d, firstch = %d, lastch = %d\n", 129 y, x, *win->lines[y]->firstchp, 130 *win->lines[y]->lastchp); 131 #endif 132 if (lp->line[x].ch != c || 133 !(lp->line[x].attr & attributes)) { 134 newx = x + win->ch_off; 135 if (!(lp->flags & __ISDIRTY)) { 136 lp->flags |= __ISDIRTY; 137 *lp->firstchp = *lp->lastchp = newx; 138 } else 139 if (newx < *lp->firstchp) 140 *lp->firstchp = newx; 141 else 142 if (newx > *lp->lastchp) 143 *lp->lastchp = newx; 144 #ifdef DEBUG 145 __CTRACE("ADDBYTES: change gives f/l: %d/%d [%d/%d]\n", 146 *lp->firstchp, *lp->lastchp, 147 *lp->firstchp - win->ch_off, 148 *lp->lastchp - win->ch_off); 149 #endif 150 } 151 lp->line[x].ch = c; 152 if (attributes & __STANDOUT) 153 lp->line[x].attr |= __STANDOUT; 154 else 155 lp->line[x].attr &= ~__STANDOUT; 156 if (attributes & __UNDERSCORE) 157 lp->line[x].attr |= __UNDERSCORE; 158 else 159 lp->line[x].attr &= ~__UNDERSCORE; 160 if (attributes & __REVERSE) 161 lp->line[x].attr |= __REVERSE; 162 else 163 lp->line[x].attr &= ~__REVERSE; 164 if (attributes & __BLINK) 165 lp->line[x].attr |= __BLINK; 166 else 167 lp->line[x].attr &= ~__BLINK; 168 if (attributes & __DIM) 169 lp->line[x].attr |= __DIM; 170 else 171 lp->line[x].attr &= ~__DIM; 172 if (attributes & __BOLD) 173 lp->line[x].attr |= __BOLD; 174 else 175 lp->line[x].attr &= ~__BOLD; 176 if (attributes & __BLANK) 177 lp->line[x].attr |= __BLANK; 178 else 179 lp->line[x].attr &= ~__BLANK; 180 if (attributes & __PROTECT) 181 lp->line[x].attr |= __PROTECT; 182 else 183 lp->line[x].attr &= ~__PROTECT; 184 if (attributes & __ALTCHARSET) 185 lp->line[x].attr |= __ALTCHARSET; 186 else 187 lp->line[x].attr &= ~__ALTCHARSET; 188 if (x == win->maxx - 1) 189 lp->flags |= __ISPASTEOL; 190 else 191 x++; 192 #ifdef DEBUG 193 __CTRACE("ADDBYTES: 2: y = %d, x = %d, firstch = %d, lastch = %d\n", 194 y, x, *win->lines[y]->firstchp, 195 *win->lines[y]->lastchp); 196 #endif 197 break; 198 case '\n': 199 SYNCH_OUT; 200 wclrtoeol(win); 201 SYNCH_IN; 202 if (!NONL) 203 x = 0; 204 goto newline; 205 case '\r': 206 x = 0; 207 break; 208 case '\b': 209 if (--x < 0) 210 x = 0; 211 break; 212 } 213 } 214 SYNCH_OUT; 215 return (OK); 216 } 217
Indexes created Wed Sep 24 15:09:51 GMT 2025