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Diffstat (limited to 'lib/libcurses/touchwin.c')
| -rw-r--r-- | lib/libcurses/touchwin.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/lib/libcurses/touchwin.c b/lib/libcurses/touchwin.c new file mode 100644 index 0000000..68fa785 --- /dev/null +++ b/lib/libcurses/touchwin.c @@ -0,0 +1,121 @@ +/* + * Copyright (c) 1981, 1993 + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. 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. + */ + +#ifndef lint +static char sccsid[] = "@(#)touchwin.c 8.1 (Berkeley) 6/4/93"; +#endif /* not lint */ + +#include <curses.h> + + +/* + * touchline -- + * Touch a given line. + */ +int +touchline(win, y, sx, ex) + WINDOW *win; + register int y, sx, ex; +{ + return (__touchline(win, y, sx, ex, 1)); +} + + +/* + * touchwin -- + * Make it look like the whole window has been changed. + */ +int +touchwin(win) + register WINDOW *win; +{ + register int y, maxy; + +#ifdef DEBUG + __CTRACE("touchwin: (%0.2o)\n", win); +#endif + maxy = win->maxy; + for (y = 0; y < maxy; y++) + __touchline(win, y, 0, win->maxx - 1, 1); + return (OK); +} + + +int +__touchwin(win) + register WINDOW *win; +{ + register int y, maxy; + +#ifdef DEBUG + __CTRACE("touchwin: (%0.2o)\n", win); +#endif + maxy = win->maxy; + for (y = 0; y < maxy; y++) + __touchline(win, y, 0, win->maxx - 1, 0); + return (OK); +} + +int +__touchline(win, y, sx, ex, force) + register WINDOW *win; + register int y, sx, ex; + int force; +{ +#ifdef DEBUG + __CTRACE("touchline: (%0.2o, %d, %d, %d, %d)\n", win, y, sx, ex, force); + __CTRACE("touchline: first = %d, last = %d\n", + *win->lines[y]->firstchp, *win->lines[y]->lastchp); +#endif + if (force) + win->lines[y]->flags |= __FORCEPAINT; + sx += win->ch_off; + ex += win->ch_off; + if (!(win->lines[y]->flags & __ISDIRTY)) { + win->lines[y]->flags |= __ISDIRTY; + *win->lines[y]->firstchp = sx; + *win->lines[y]->lastchp = ex; + } else { + if (*win->lines[y]->firstchp > sx) + *win->lines[y]->firstchp = sx; + if (*win->lines[y]->lastchp < ex) + *win->lines[y]->lastchp = ex; + } +#ifdef DEBUG + __CTRACE("touchline: first = %d, last = %d\n", + *win->lines[y]->firstchp, *win->lines[y]->lastchp); +#endif + return (OK); +} + + |
