storebox.c

最简单的窗口管理器

#ifndef lint
static char *rcsid_StoreBox_c = "$Header: StoreBox.c  88/08/09 08:58:59 Xusr Exp $";
#endif

/*
 * Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
 *
 *                         All Rights Reserved
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose and without fee is hereby granted,
 * provided that the above copyright notice appear in all copies and that
 * both that copyright notice and this permission notice appear in
 * supporting documentation, and that the name of Digital Equipment
 * Corporation not be used in advertising or publicity pertaining to
 * distribution of the software without specific, written prior permission.
 *
 *
 * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
 * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
 * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
 * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
 * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 * SOFTWARE.
 */

 

/*
 * MODIFICATION HISTORY
 *
 * 000 -- M. Gancarz, DEC Ultrix Engineering Group
 * 001 -- Loretta Guarino Reid, DEC Ultrix Engineering Group,
    Western Software Lab. Convert to X11.
 */

#ifndef lint
static char *sccsid = "@(#)StoreBox.c	3.8	1/24/86";
#endif
/*
 *	StoreBox - This subroutine is used by the X Window Manager (xwm)
 *	to store the vertices for the resize / movement box in a vertex list.
 */

#include "uwm.h"

/*
 * Store the vertices for the resize movement box in a vertex list.
 */
int StoreBox(box, ulx, uly, lrx, lry)
register XSegment box[];
int ulx;			/* Upper left X coordinate. */
int uly;			/* Upper left Y coordinate. */
int lrx;			/* Lower right X coordinate. */
int lry;			/* Lower right Y coordinate. */
{
    /*
     * Xor in.
     */

    box[0].x1 = ulx; box[0].y1 = uly;
    box[0].x2 = lrx; box[0].y2 = uly;

    box[1].x1 = lrx; box[1].y1 = uly;
    box[1].x2 = lrx; box[1].y2 = lry;

    box[2].x1 = lrx; box[2].y1 = lry;
    box[2].x2 = ulx; box[2].y2 = lry;

    box[3].x1 = ulx; box[3].y1 = lry;
    box[3].x2 = ulx; box[3].y2 = uly;


    /*
     * If we freeze the screen, don't bother to xor out.
     */
    if (Freeze)
        return(4);

    /*
     * Xor out.
     */
    box[4].x1 = ulx; box[4].y1 = uly;
    box[4].x2 = lrx; box[4].y2 = uly;

    box[5].x1 = lrx; box[5].y1 = uly;
    box[5].x2 = lrx; box[5].y2 = lry;

    box[6].x1 = lrx; box[6].y1 = lry;
    box[6].x2 = ulx; box[6].y2 = lry;

    box[7].x1 = ulx; box[7].y1 = lry;
    box[7].x2 = ulx; box[7].y2 = uly;


    /*
     * Total number of vertices is 8.
     */
    return(8);
}