diff options
Diffstat (limited to 'lib/libcurses/newwin.c')
| -rw-r--r-- | lib/libcurses/newwin.c | 249 |
1 files changed, 0 insertions, 249 deletions
diff --git a/lib/libcurses/newwin.c b/lib/libcurses/newwin.c deleted file mode 100644 index 3273817..0000000 --- a/lib/libcurses/newwin.c +++ /dev/null @@ -1,249 +0,0 @@ -/* - * Copyright (c) 1981, 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. 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[] = "@(#)newwin.c 8.3 (Berkeley) 7/27/94"; -#endif /* not lint */ - -#include <stdlib.h> - -#include "curses.h" - -#undef nl /* Don't need it here, and it interferes. */ - -static WINDOW *__makenew __P((int, int, int, int, int)); - -void __set_subwin __P((WINDOW *, WINDOW *)); - -/* - * newwin -- - * Allocate space for and set up defaults for a new window. - */ -WINDOW * -newwin(nl, nc, by, bx) - register int nl, nc, by, bx; -{ - register WINDOW *win; - register __LINE *lp; - register int i, j; - register __LDATA *sp; - - if (nl == 0) - nl = LINES - by; - if (nc == 0) - nc = COLS - bx; - - if ((win = __makenew(nl, nc, by, bx, 0)) == NULL) - return (NULL); - - win->nextp = win; - win->ch_off = 0; - win->orig = NULL; - -#ifdef DEBUG - __CTRACE("newwin: win->ch_off = %d\n", win->ch_off); -#endif - - for (i = 0; i < nl; i++) { - lp = win->lines[i]; - lp->flags = 0; - for (sp = lp->line, j = 0; j < nc; j++, sp++) { - sp->ch = ' '; - sp->attr = 0; - } - lp->hash = __hash((char *) lp->line, nc * __LDATASIZE); - } - return (win); -} - -WINDOW * -subwin(orig, nl, nc, by, bx) - register WINDOW *orig; - register int by, bx, nl, nc; -{ - int i; - __LINE *lp; - register WINDOW *win; - - /* Make sure window fits inside the original one. */ -#ifdef DEBUG - __CTRACE("subwin: (%0.2o, %d, %d, %d, %d)\n", orig, nl, nc, by, bx); -#endif - if (by < orig->begy || bx < orig->begx - || by + nl > orig->maxy + orig->begy - || bx + nc > orig->maxx + orig->begx) - return (NULL); - if (nl == 0) - nl = orig->maxy + orig->begy - by; - if (nc == 0) - nc = orig->maxx + orig->begx - bx; - if ((win = __makenew(nl, nc, by, bx, 1)) == NULL) - return (NULL); - win->nextp = orig->nextp; - orig->nextp = win; - win->orig = orig; - - /* Initialize flags here so that refresh can also use __set_subwin. */ - for (lp = win->lspace, i = 0; i < win->maxy; i++, lp++) - lp->flags = 0; - __set_subwin(orig, win); - return (win); -} - -/* - * This code is shared with mvwin(). - */ -void -__set_subwin(orig, win) - register WINDOW *orig, *win; -{ - int i; - __LINE *lp, *olp; - - win->ch_off = win->begx - orig->begx; - /* Point line pointers to line space. */ - for (lp = win->lspace, i = 0; i < win->maxy; i++, lp++) { - win->lines[i] = lp; - olp = orig->lines[i + win->begy - orig->begy]; - lp->line = &olp->line[win->ch_off]; - lp->firstchp = &olp->firstch; - lp->lastchp = &olp->lastch; - lp->hash = __hash((char *) lp->line, win->maxx * __LDATASIZE); - } - -#ifdef DEBUG - __CTRACE("__set_subwin: win->ch_off = %d\n", win->ch_off); -#endif -} - -/* - * __makenew -- - * Set up a window buffer and returns a pointer to it. - */ -static WINDOW * -__makenew(nl, nc, by, bx, sub) - register int by, bx, nl, nc; - int sub; -{ - register WINDOW *win; - register __LINE *lp; - int i; - - -#ifdef DEBUG - __CTRACE("makenew: (%d, %d, %d, %d)\n", nl, nc, by, bx); -#endif - if ((win = malloc(sizeof(*win))) == NULL) - return (NULL); -#ifdef DEBUG - __CTRACE("makenew: nl = %d\n", nl); -#endif - - /* - * Set up line pointer array and line space. - */ - if ((win->lines = malloc (nl * sizeof(__LINE *))) == NULL) { - free(win); - return NULL; - } - if ((win->lspace = malloc (nl * sizeof(__LINE))) == NULL) { - free (win); - free (win->lines); - return NULL; - } - - /* Don't allocate window and line space if it's a subwindow */ - if (!sub) { - /* - * Allocate window space in one chunk. - */ - if ((win->wspace = - malloc(nc * nl * sizeof(__LDATA))) == NULL) { - free(win->lines); - free(win->lspace); - free(win); - return NULL; - } - - /* - * Point line pointers to line space, and lines themselves into - * window space. - */ - for (lp = win->lspace, i = 0; i < nl; i++, lp++) { - win->lines[i] = lp; - lp->line = &win->wspace[i * nc]; - lp->firstchp = &lp->firstch; - lp->lastchp = &lp->lastch; - lp->firstch = 0; - lp->lastch = 0; - } - } -#ifdef DEBUG - __CTRACE("makenew: nc = %d\n", nc); -#endif - win->cury = win->curx = 0; - win->maxy = nl; - win->maxx = nc; - - win->begy = by; - win->begx = bx; - win->flags = 0; - __swflags(win); -#ifdef DEBUG - __CTRACE("makenew: win->flags = %0.2o\n", win->flags); - __CTRACE("makenew: win->maxy = %d\n", win->maxy); - __CTRACE("makenew: win->maxx = %d\n", win->maxx); - __CTRACE("makenew: win->begy = %d\n", win->begy); - __CTRACE("makenew: win->begx = %d\n", win->begx); -#endif - return (win); -} - -void -__swflags(win) - register WINDOW *win; -{ - win->flags &= - ~(__ENDLINE | __FULLLINE | __FULLWIN | __SCROLLWIN | __LEAVEOK); - if (win->begx + win->maxx == COLS) { - win->flags |= __ENDLINE; - if (win->begx == 0) { - if (!__noqch) - win->flags |= __FULLLINE; - if (win->maxy == LINES && win->begy == 0) - win->flags |= __FULLWIN; - } - if (win->begy + win->maxy == LINES) - win->flags |= __SCROLLWIN; - } -} |
