JDK14/Java14源码在线阅读

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
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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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 * 2 along with this work; if not, write to the Free Software Foundation,
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package java.awt.event;

import java.util.EventListener;

/**
 * The listener interface for receiving mouse motion events on a component.
 * (For clicks and other mouse events, use the {@code MouseListener}.)
 * <P>
 * The class that is interested in processing a mouse motion event
 * either implements this interface (and all the methods it
 * contains) or extends the abstract {@code MouseMotionAdapter} class
 * (overriding only the methods of interest).
 * <P>
 * The listener object created from that class is then registered with a
 * component using the component's {@code addMouseMotionListener}
 * method. A mouse motion event is generated when the mouse is moved
 * or dragged. (Many such events will be generated). When a mouse motion event
 * occurs, the relevant method in the listener object is invoked, and
 * the {@code MouseEvent} is passed to it.
 *
 * @author Amy Fowler
 *
 * @see MouseMotionAdapter
 * @see MouseEvent
 * @see <a href="https://docs.oracle.com/javase/tutorial/uiswing/events/mousemotionlistener.html">Tutorial: Writing a Mouse Motion Listener</a>
 *
 * @since 1.1
 */
public interface MouseMotionListener extends EventListener {

    /**
     * Invoked when a mouse button is pressed on a component and then
     * dragged.  {@code MOUSE_DRAGGED} events will continue to be
     * delivered to the component where the drag originated until the
     * mouse button is released (regardless of whether the mouse position
     * is within the bounds of the component).
     * <p>
     * Due to platform-dependent Drag&amp;Drop implementations,
     * {@code MOUSE_DRAGGED} events may not be delivered during a native

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