addbytes.c revision 1.30.6.4
1 /* $NetBSD: addbytes.c,v 1.30.6.4 2007/01/22 10:43:28 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. 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 1.30.6.4 2007/01/22 10:43:28 blymn Exp $"); 38 #endif 39 #endif /* not lint */ 40 41 #include <stdlib.h> 42 #include <assert.h> 43 #include "curses.h" 44 #include "curses_private.h" 45 #ifdef DEBUG 46 #include <assert.h> 47 #endif 48 49 #define SYNCH_IN {y = win->cury; x = win->curx;} 50 #define SYNCH_OUT {win->cury = y; win->curx = x;} 51 52 #ifndef _CURSES_USE_MACROS 53 54 /* 55 * addbytes -- 56 * Add the character to the current position in stdscr. 57 */ 58 int 59 addbytes(const char *bytes, int count) 60 { 61 return __waddbytes(stdscr, bytes, count, 0); 62 } 63 64 /* 65 * waddbytes -- 66 * Add the character to the current position in the given window. 67 */ 68 int 69 waddbytes(WINDOW *win, const char *bytes, int count) 70 { 71 return __waddbytes(win, bytes, count, 0); 72 } 73 74 /* 75 * mvaddbytes -- 76 * Add the characters to stdscr at the location given. 77 */ 78 int 79 mvaddbytes(int y, int x, const char *bytes, int count) 80 { 81 return mvwaddbytes(stdscr, y, x, bytes, count); 82 } 83 84 /* 85 * mvwaddbytes -- 86 * Add the characters to the given window at the location given. 87 */ 88 int 89 mvwaddbytes(WINDOW *win, int y, int x, const char *bytes, int count) 90 { 91 if (wmove(win, y, x) == ERR) 92 return ERR; 93 94 return __waddbytes(win, bytes, count, 0); 95 } 96 97 #endif 98 99 /* 100 * waddbytes -- 101 * Add the character to the current position in the given window. 102 */ 103 int 104 __waddbytes(WINDOW *win, const char *bytes, int count, attr_t attr) 105 { 106 static char blanks[] = " "; 107 int c, newx, x, y; 108 attr_t attributes; 109 __LINE *lp; 110 #ifdef DEBUG 111 int i; 112 113 for (i = 0; i < win->maxy; i++) { 114 assert(win->lines[i]->sentinel == SENTINEL_VALUE); 115 } 116 #endif 117 118 SYNCH_IN; 119 lp = win->lines[y]; 120 121 while (count--) { 122 c = *bytes++; 123 #ifdef DEBUG 124 __CTRACE(__CTRACE_INPUT, "ADDBYTES('%c', %x) at (%d, %d)\n", 125 c, attr, y, x); 126 #endif 127 switch (c) { 128 case '\t': 129 SYNCH_OUT; 130 if (waddbytes(win, blanks, 8 - (x % 8)) == ERR) 131 return (ERR); 132 SYNCH_IN; 133 break; 134 135 default: 136 #ifdef DEBUG 137 __CTRACE(__CTRACE_INPUT, "ADDBYTES(%p, %d, %d)\n", 138 win, y, x); 139 #endif 140 141 if (lp->flags & __ISPASTEOL) { 142 newline: 143 x = 0; 144 lp->flags &= ~__ISPASTEOL; 145 if (y == win->scr_b) { 146 #ifdef DEBUG 147 __CTRACE(__CTRACE_INPUT, 148 "ADDBYTES - on bottom " 149 "of scrolling region\n"); 150 #endif 151 if (!(win->flags & __SCROLLOK)) 152 return ERR; 153 SYNCH_OUT; 154 scroll(win); 155 SYNCH_IN; 156 } else { 157 y++; 158 } 159 lp = win->lines[y]; 160 if (c == '\n') 161 break; 162 } 163 164 attributes = (win->wattr | attr) & 165 (__ATTRIBUTES & ~__COLOR); 166 if (attr & __COLOR) 167 attributes |= attr & __COLOR; 168 else if (win->wattr & __COLOR) 169 attributes |= win->wattr & __COLOR; 170 #ifdef DEBUG 171 __CTRACE(__CTRACE_INPUT, 172 "ADDBYTES: 1: y = %d, x = %d, firstch = %d, " 173 "lastch = %d\n", 174 y, x, *win->lines[y]->firstchp, 175 *win->lines[y]->lastchp); 176 #endif 177 /* 178 * Always update the change pointers. Otherwise, 179 * we could end up not displaying 'blank' characters 180 * when overlapping windows are displayed. 181 */ 182 newx = x + win->ch_off; 183 lp->flags |= __ISDIRTY; 184 /* 185 * firstchp/lastchp are shared between 186 * parent window and sub-window. 187 */ 188 if (newx < *lp->firstchp) 189 *lp->firstchp = newx; 190 if (newx > *lp->lastchp) 191 *lp->lastchp = newx; 192 #ifdef DEBUG 193 __CTRACE(__CTRACE_INPUT, 194 "ADDBYTES: change gives f/l: %d/%d [%d/%d]\n", 195 *lp->firstchp, *lp->lastchp, 196 *lp->firstchp - win->ch_off, 197 *lp->lastchp - win->ch_off); 198 #endif 199 if (win->bch != ' ' && c == ' ') 200 lp->line[x].ch = win->bch; 201 else 202 lp->line[x].ch = c; 203 204 #ifdef HAVE_WCHAR 205 if (_cursesi_copy_nsp(win->bnsp, &lp->line[x]) == ERR) 206 return ERR; 207 SET_WCOL(lp->line[x], 1); 208 #endif /* HAVE_WCHAR */ 209 210 if (attributes & __COLOR) 211 lp->line[x].attr = 212 attributes | (win->battr & ~__COLOR); 213 else 214 lp->line[x].attr = attributes | win->battr; 215 #ifdef HAVE_WCHAR 216 SET_WCOL(lp->line[x], 1); 217 #endif /* HAVE_WCHAR */ 218 219 if (x == win->maxx - 1) 220 lp->flags |= __ISPASTEOL; 221 else 222 x++; 223 #ifdef DEBUG 224 __CTRACE(__CTRACE_INPUT, 225 "ADDBYTES: 2: y = %d, x = %d, firstch = %d, " 226 "lastch = %d\n", 227 y, x, *win->lines[y]->firstchp, 228 *win->lines[y]->lastchp); 229 #endif 230 break; 231 case '\n': 232 SYNCH_OUT; 233 wclrtoeol(win); 234 SYNCH_IN; 235 goto newline; 236 case '\r': 237 x = 0; 238 continue; 239 case '\b': 240 if (--x < 0) 241 x = 0; 242 break; 243 } 244 } 245 SYNCH_OUT; 246 247 #ifdef DEBUG 248 for (i = 0; i < win->maxy; i++) { 249 assert(win->lines[i]->sentinel == SENTINEL_VALUE); 250 } 251 #endif 252 253 return (OK); 254 } 255
Indexes created Tue Sep 23 14:10:03 GMT 2025