addbytes.c revision 1.30.6.5
1 /* $NetBSD: addbytes.c,v 1.30.6.5 2007/01/22 11:14:05 jdc 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)addbytes.c 8.4 (Berkeley) 5/4/94"; 36 #else 37 __RCSID("$NetBSD: addbytes.c,v 1.30.6.5 2007/01/22 11:14:05 jdc Exp $"); 38 #endif 39 #endif /* not lint */ 40 41 #include <stdlib.h> 42 #include "curses.h" 43 #include "curses_private.h" 44 #ifdef DEBUG 45 #include <assert.h> 46 #endif 47 48 #define SYNCH_IN {y = win->cury; x = win->curx;} 49 #define SYNCH_OUT {win->cury = y; win->curx = x;} 50 51 #ifndef _CURSES_USE_MACROS 52 53 /* 54 * addbytes -- 55 * Add the character to the current position in stdscr. 56 */ 57 int 58 addbytes(const char *bytes, int count) 59 { 60 return __waddbytes(stdscr, bytes, count, 0); 61 } 62 63 /* 64 * waddbytes -- 65 * Add the character to the current position in the given window. 66 */ 67 int 68 waddbytes(WINDOW *win, const char *bytes, int count) 69 { 70 return __waddbytes(win, bytes, count, 0); 71 } 72 73 /* 74 * mvaddbytes -- 75 * Add the characters to stdscr at the location given. 76 */ 77 int 78 mvaddbytes(int y, int x, const char *bytes, int count) 79 { 80 return mvwaddbytes(stdscr, y, x, bytes, count); 81 } 82 83 /* 84 * mvwaddbytes -- 85 * Add the characters to the given window at the location given. 86 */ 87 int 88 mvwaddbytes(WINDOW *win, int y, int x, const char *bytes, int count) 89 { 90 if (wmove(win, y, x) == ERR) 91 return ERR; 92 93 return __waddbytes(win, bytes, count, 0); 94 } 95 96 #endif 97 98 /* 99 * waddbytes -- 100 * Add the character to the current position in the given window. 101 */ 102 int 103 __waddbytes(WINDOW *win, const char *bytes, int count, attr_t attr) 104 { 105 static char blanks[] = " "; 106 int c, newx, x, y; 107 attr_t attributes; 108 __LINE *lp; 109 #ifdef DEBUG 110 int i; 111 112 for (i = 0; i < win->maxy; i++) { 113 assert(win->lines[i]->sentinel == SENTINEL_VALUE); 114 } 115 #endif 116 117 SYNCH_IN; 118 lp = win->lines[y]; 119 120 while (count--) { 121 c = *bytes++; 122 #ifdef DEBUG 123 __CTRACE(__CTRACE_INPUT, "ADDBYTES('%c', %x) at (%d, %d)\n", 124 c, attr, y, x); 125 #endif 126 switch (c) { 127 case '\t': 128 SYNCH_OUT; 129 if (waddbytes(win, blanks, 8 - (x % 8)) == ERR) 130 return (ERR); 131 SYNCH_IN; 132 break; 133 134 default: 135 #ifdef DEBUG 136 __CTRACE(__CTRACE_INPUT, "ADDBYTES(%p, %d, %d)\n", 137 win, y, x); 138 #endif 139 140 if (lp->flags & __ISPASTEOL) { 141 newline: 142 x = 0; 143 lp->flags &= ~__ISPASTEOL; 144 if (y == win->scr_b) { 145 #ifdef DEBUG 146 __CTRACE(__CTRACE_INPUT, 147 "ADDBYTES - on bottom " 148 "of scrolling region\n"); 149 #endif 150 if (!(win->flags & __SCROLLOK)) 151 return ERR; 152 SYNCH_OUT; 153 scroll(win); 154 SYNCH_IN; 155 } else { 156 y++; 157 } 158 lp = win->lines[y]; 159 if (c == '\n') 160 break; 161 } 162 163 attributes = (win->wattr | attr) & 164 (__ATTRIBUTES & ~__COLOR); 165 if (attr & __COLOR) 166 attributes |= attr & __COLOR; 167 else if (win->wattr & __COLOR) 168 attributes |= win->wattr & __COLOR; 169 #ifdef DEBUG 170 __CTRACE(__CTRACE_INPUT, 171 "ADDBYTES: 1: y = %d, x = %d, firstch = %d, " 172 "lastch = %d\n", 173 y, x, *win->lines[y]->firstchp, 174 *win->lines[y]->lastchp); 175 #endif 176 /* 177 * Always update the change pointers. Otherwise, 178 * we could end up not displaying 'blank' characters 179 * when overlapping windows are displayed. 180 */ 181 newx = x + win->ch_off; 182 lp->flags |= __ISDIRTY; 183 /* 184 * firstchp/lastchp are shared between 185 * parent window and sub-window. 186 */ 187 if (newx < *lp->firstchp) 188 *lp->firstchp = newx; 189 if (newx > *lp->lastchp) 190 *lp->lastchp = newx; 191 #ifdef DEBUG 192 __CTRACE(__CTRACE_INPUT, 193 "ADDBYTES: change gives f/l: %d/%d [%d/%d]\n", 194 *lp->firstchp, *lp->lastchp, 195 *lp->firstchp - win->ch_off, 196 *lp->lastchp - win->ch_off); 197 #endif 198 if (win->bch != ' ' && c == ' ') 199 lp->line[x].ch = win->bch; 200 else 201 lp->line[x].ch = c; 202 203 #ifdef HAVE_WCHAR 204 if (_cursesi_copy_nsp(win->bnsp, &lp->line[x]) == ERR) 205 return ERR; 206 SET_WCOL(lp->line[x], 1); 207 #endif /* HAVE_WCHAR */ 208 209 if (attributes & __COLOR) 210 lp->line[x].attr = 211 attributes | (win->battr & ~__COLOR); 212 else 213 lp->line[x].attr = attributes | win->battr; 214 #ifdef HAVE_WCHAR 215 SET_WCOL(lp->line[x], 1); 216 #endif /* HAVE_WCHAR */ 217 218 if (x == win->maxx - 1) 219 lp->flags |= __ISPASTEOL; 220 else 221 x++; 222 #ifdef DEBUG 223 __CTRACE(__CTRACE_INPUT, 224 "ADDBYTES: 2: y = %d, x = %d, firstch = %d, " 225 "lastch = %d\n", 226 y, x, *win->lines[y]->firstchp, 227 *win->lines[y]->lastchp); 228 #endif 229 break; 230 case '\n': 231 SYNCH_OUT; 232 wclrtoeol(win); 233 SYNCH_IN; 234 goto newline; 235 case '\r': 236 x = 0; 237 continue; 238 case '\b': 239 if (--x < 0) 240 x = 0; 241 break; 242 } 243 } 244 SYNCH_OUT; 245 246 #ifdef DEBUG 247 for (i = 0; i < win->maxy; i++) { 248 assert(win->lines[i]->sentinel == SENTINEL_VALUE); 249 } 250 #endif 251 252 return (OK); 253 } 254
Indexes created Tue Sep 23 07:09:52 GMT 2025