/* $NetBSD: addbytes.c,v 1.30.6.4 2007/01/22 10:43:28 blymn Exp $ */ /* * Copyright (c) 1987, 1993, 1994 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #ifndef lint #if 0 static char sccsid[] = "@(#)addbytes.c 8.4 (Berkeley) 5/4/94"; #else __RCSID("$NetBSD: addbytes.c,v 1.30.6.4 2007/01/22 10:43:28 blymn Exp $"); #endif #endif /* not lint */ #include #include #include "curses.h" #include "curses_private.h" #ifdef DEBUG #include #endif #define SYNCH_IN {y = win->cury; x = win->curx;} #define SYNCH_OUT {win->cury = y; win->curx = x;} #ifndef _CURSES_USE_MACROS /* * addbytes -- * Add the character to the current position in stdscr. */ int addbytes(const char *bytes, int count) { return __waddbytes(stdscr, bytes, count, 0); } /* * waddbytes -- * Add the character to the current position in the given window. */ int waddbytes(WINDOW *win, const char *bytes, int count) { return __waddbytes(win, bytes, count, 0); } /* * mvaddbytes -- * Add the characters to stdscr at the location given. */ int mvaddbytes(int y, int x, const char *bytes, int count) { return mvwaddbytes(stdscr, y, x, bytes, count); } /* * mvwaddbytes -- * Add the characters to the given window at the location given. */ int mvwaddbytes(WINDOW *win, int y, int x, const char *bytes, int count) { if (wmove(win, y, x) == ERR) return ERR; return __waddbytes(win, bytes, count, 0); } #endif /* * waddbytes -- * Add the character to the current position in the given window. */ int __waddbytes(WINDOW *win, const char *bytes, int count, attr_t attr) { static char blanks[] = " "; int c, newx, x, y; attr_t attributes; __LINE *lp; #ifdef DEBUG int i; for (i = 0; i < win->maxy; i++) { assert(win->lines[i]->sentinel == SENTINEL_VALUE); } #endif SYNCH_IN; lp = win->lines[y]; while (count--) { c = *bytes++; #ifdef DEBUG __CTRACE(__CTRACE_INPUT, "ADDBYTES('%c', %x) at (%d, %d)\n", c, attr, y, x); #endif switch (c) { case '\t': SYNCH_OUT; if (waddbytes(win, blanks, 8 - (x % 8)) == ERR) return (ERR); SYNCH_IN; break; default: #ifdef DEBUG __CTRACE(__CTRACE_INPUT, "ADDBYTES(%p, %d, %d)\n", win, y, x); #endif if (lp->flags & __ISPASTEOL) { newline: x = 0; lp->flags &= ~__ISPASTEOL; if (y == win->scr_b) { #ifdef DEBUG __CTRACE(__CTRACE_INPUT, "ADDBYTES - on bottom " "of scrolling region\n"); #endif if (!(win->flags & __SCROLLOK)) return ERR; SYNCH_OUT; scroll(win); SYNCH_IN; } else { y++; } lp = win->lines[y]; if (c == '\n') break; } attributes = (win->wattr | attr) & (__ATTRIBUTES & ~__COLOR); if (attr & __COLOR) attributes |= attr & __COLOR; else if (win->wattr & __COLOR) attributes |= win->wattr & __COLOR; #ifdef DEBUG __CTRACE(__CTRACE_INPUT, "ADDBYTES: 1: y = %d, x = %d, firstch = %d, " "lastch = %d\n", y, x, *win->lines[y]->firstchp, *win->lines[y]->lastchp); #endif /* * Always update the change pointers. Otherwise, * we could end up not displaying 'blank' characters * when overlapping windows are displayed. */ newx = x + win->ch_off; lp->flags |= __ISDIRTY; /* * firstchp/lastchp are shared between * parent window and sub-window. */ if (newx < *lp->firstchp) *lp->firstchp = newx; if (newx > *lp->lastchp) *lp->lastchp = newx; #ifdef DEBUG __CTRACE(__CTRACE_INPUT, "ADDBYTES: change gives f/l: %d/%d [%d/%d]\n", *lp->firstchp, *lp->lastchp, *lp->firstchp - win->ch_off, *lp->lastchp - win->ch_off); #endif if (win->bch != ' ' && c == ' ') lp->line[x].ch = win->bch; else lp->line[x].ch = c; #ifdef HAVE_WCHAR if (_cursesi_copy_nsp(win->bnsp, &lp->line[x]) == ERR) return ERR; SET_WCOL(lp->line[x], 1); #endif /* HAVE_WCHAR */ if (attributes & __COLOR) lp->line[x].attr = attributes | (win->battr & ~__COLOR); else lp->line[x].attr = attributes | win->battr; #ifdef HAVE_WCHAR SET_WCOL(lp->line[x], 1); #endif /* HAVE_WCHAR */ if (x == win->maxx - 1) lp->flags |= __ISPASTEOL; else x++; #ifdef DEBUG __CTRACE(__CTRACE_INPUT, "ADDBYTES: 2: y = %d, x = %d, firstch = %d, " "lastch = %d\n", y, x, *win->lines[y]->firstchp, *win->lines[y]->lastchp); #endif break; case '\n': SYNCH_OUT; wclrtoeol(win); SYNCH_IN; goto newline; case '\r': x = 0; continue; case '\b': if (--x < 0) x = 0; break; } } SYNCH_OUT; #ifdef DEBUG for (i = 0; i < win->maxy; i++) { assert(win->lines[i]->sentinel == SENTINEL_VALUE); } #endif return (OK); }