/*
 * @(#)SortAlgorithm.java	1.4 96/12/06
 *
 * Copyright (c) 1994-1996 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
 * modify and redistribute this software in source and binary code form,
 * provided that i) this copyright notice and license appear on all copies of
 * the software; and ii) Licensee does not utilize the software in a manner
 * which is disparaging to Sun.
 *
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
 * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
 * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
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 */

/**
 * A generic sort demonstration algorithm
 * SortAlgorithm.java, Thu Oct 27 10:32:35 1994
 *
 * @author James Gosling
 * @version 	1.6f, 31 Jan 1995
 * modified:          19 Sep 1999 [Oliver M"oller]
 */

class SortAlgorithm {
    /**
     * The sort item.
     */
    private SortItem parent;

    /*
     * a global variable
     */
    public int ncmp_count = 0; //the number of comparisons made in one run.
    /*
     * Marker when finished with sorting
     */
    public boolean finished;

    /**
     * When true stop sorting.
     */
    protected boolean stopRequested = false;

    /**
     * Set the parent.
     */
    public void setParent(SortItem p) {
	parent = p;
    }

    /**
     * Pause for a while.
     */
    protected void pause() throws Exception {
	if (stopRequested) {
	    throw new Exception("Sort Algorithm");
	}
	parent.pause(parent.h1, parent.h2);
    }

    /**
     * Pause for a while and mark item 1.
     */
    protected void pause(int H1) throws Exception {
	if (stopRequested) {
	    throw new Exception("Sort Algorithm");
	}
	parent.pause(H1, parent.h2);
    }

    /**
     * Pause for a while and mark item 1 & 2.
     */
    protected void pause(int H1, int H2) throws Exception {
	if (stopRequested) {
	    throw new Exception("Sort Algorithm");
	}
	parent.pause(H1, H2);
    }

    /**
     * Stop sorting.
     */
    public void stop() {
	stopRequested = true;
    }

    /**
     * Initialize
     */
    public void init() {
	stopRequested = false;
	ncmp_count = 0;
	finished = false;
    }

    /**
     * This method will be called to
     * sort an array of integers.
     */
    void sort(int a[]) throws Exception {
    }
}