/*******************************************************************************
 * Copyright (c) 2007-2008 SAS Institute Inc., ILOG S.A.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     SAS Institute Inc. - initial API and implementation
 *     ILOG S.A. - initial API and implementation
 *******************************************************************************/
package org.eclipse.albireo.core;

import java.util.EventObject;

import org.eclipse.swt.graphics.Point;

/**
 * Instances of this class are sent as a result of
 * size changes for an embedded Swing control
 *
 * @see SizeListener
 */
public class SizeEvent extends EventObject
{
    /** the minimum size for this control, as reported by AWT. */
    public final Point minimum;

    /** the preferred size for this control, as reported by AWT. */
    public final Point preferred;

    /** the maximum size for this control, as reported by AWT. */
    public final Point maximum;

    public SizeEvent ( final SwingControl source, final Point min, final Point pref, final Point max )
    {
        super ( source );
        this.minimum = min;
        this.preferred = pref;
        this.maximum = max;
    }

    /**
     * Returns the SwingControl that is the source of this event
     * @return SwingControl 
     */
    public SwingControl getSwingControl ()
    {
        return (SwingControl)this.source;
    }

    /**
     * Returns the name of the event. This is the name of
     * the class without the package name.
     *
     * @return the name of the event
     */
    protected String getName ()
    {
        final String string = getClass ().getName ();
        final int index = string.lastIndexOf ( '.' );
        if ( index == -1 )
        {
            return string;
        }
        return string.substring ( index + 1, string.length () );
    }

    /**
     * Returns a string containing a concise, human-readable
     * description of the receiver.
     *
     * @return a string representation of the event
     */
    @Override
    public String toString ()
    {
        return getName () + "{" + this.source //$NON-NLS-1$
                + " min=" + this.minimum //$NON-NLS-1$
                + " pref=" + this.preferred //$NON-NLS-1$
                + " max=" + this.maximum //$NON-NLS-1$
                + "}"; //$NON-NLS-1$
    }
}