/* * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights * Reserved. This file contains Original Code and/or Modifications of * Original Code as defined in and that are subject to the Apple Public * Source License Version 1.1 (the "License"). You may not use this file * except in compliance with the License. Please obtain a copy of the * License at http://www.apple.com/publicsource and read it before using * this file. * * The Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * 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. */ #include "curses.h" /* * touchoverlap -- * Touch, on win2, the part that overlaps with win1. */ int touchoverlap(win1, win2) register WINDOW *win1, *win2; { register int y, endy, endx, starty, startx; #ifdef DEBUG __CTRACE("touchoverlap: (%0.2o, %0.2o);\n", win1, win2); #endif starty = max(win1->begy, win2->begy); startx = max(win1->begx, win2->begx); endy = min(win1->maxy + win1->begy, win2->maxy + win2->begx); endx = min(win1->maxx + win1->begx, win2->maxx + win2->begx); #ifdef DEBUG __CTRACE("touchoverlap: from (%d,%d) to (%d,%d)\n", starty, startx, endy, endx); __CTRACE("touchoverlap: win1 (%d,%d) to (%d,%d)\n", win1->begy, win1->begx, win1->begy + win1->maxy, win1->begx + win1->maxx); __CTRACE("touchoverlap: win2 (%d,%d) to (%d,%d)\n", win2->begy, win2->begx, win2->begy + win2->maxy, win2->begx + win2->maxx); #endif if (starty >= endy || startx >= endx) return (OK); starty -= win2->begy; startx -= win2->begx; endy -= win2->begy; endx -= win2->begx; for (--endx, y = starty; y < endy; y++) __touchline(win2, y, startx, endx, 0); return (OK); }