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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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package com.apple.eawt.event;

import java.awt.*;
import java.awt.event.InputEvent;

/**
 * Abstract event all gestures inherit from.
 *
 * Note: GestureEvent is not subclass of {@link AWTEvent} and is not dispatched
 * directly from the {@link EventQueue}. This is an intentional design decision
 * to prevent collision with an official java.awt.* gesture event types subclassing
 * {@link InputEvent}.
 *
 * {@link GestureListener}s are only notified from the AWT Event Dispatch thread.
 *
 * @see GestureUtilities
 *
 * @since Java for Mac OS X 10.5 Update 7, Java for Mac OS X 10.6 Update 2
 */
public abstract class GestureEvent {
    boolean consumed;

    GestureEvent() {
        // package private
    }

    /**
     * Consuming an event prevents listeners later in the chain or higher in the
     * component hierarchy from receiving the event.
     */
    public void consume() {
        consumed = true;
    }

    /**
     * @return {@code true} if the event has been consumed, otherwise
     *         {@code false}
     */
    protected boolean isConsumed() {
        return consumed;
    }
}
