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    1   /*
    2    * Copyright (c) 1996, 2006, Oracle and/or its affiliates. All rights reserved.
    3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
    4    *
    5    * This code is free software; you can redistribute it and/or modify it
    6    * under the terms of the GNU General Public License version 2 only, as
    7    * published by the Free Software Foundation.  Oracle designates this
    8    * particular file as subject to the "Classpath" exception as provided
    9    * by Oracle in the LICENSE file that accompanied this code.
   10    *
   11    * This code is distributed in the hope that it will be useful, but WITHOUT
   12    * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   13    * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   14    * version 2 for more details (a copy is included in the LICENSE file that
   15    * accompanied this code).
   16    *
   17    * You should have received a copy of the GNU General Public License version
   18    * 2 along with this work; if not, write to the Free Software Foundation,
   19    * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   20    *
   21    * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   22    * or visit www.oracle.com if you need additional information or have any
   23    * questions.
   24    */
   25   
   26   package java.awt.event;
   27   
   28   import java.util.EventListener;
   29   
   30   /**
   31    * The listener interface for receiving mouse motion events on a component.
   32    * (For clicks and other mouse events, use the <code>MouseListener</code>.)
   33    * <P>
   34    * The class that is interested in processing a mouse motion event
   35    * either implements this interface (and all the methods it
   36    * contains) or extends the abstract <code>MouseMotionAdapter</code> class
   37    * (overriding only the methods of interest).
   38    * <P>
   39    * The listener object created from that class is then registered with a
   40    * component using the component's <code>addMouseMotionListener</code>
   41    * method. A mouse motion event is generated when the mouse is moved
   42    * or dragged. (Many such events will be generated). When a mouse motion event
   43    * occurs, the relevant method in the listener object is invoked, and
   44    * the <code>MouseEvent</code> is passed to it.
   45    *
   46    * @author Amy Fowler
   47    *
   48    * @see MouseMotionAdapter
   49    * @see MouseEvent
   50    * @see <a href="http://java.sun.com/docs/books/tutorial/post1.0/ui/mousemotionlistener.html">Tutorial: Writing a Mouse Motion Listener</a>
   51    *
   52    * @since 1.1
   53    */
   54   public interface MouseMotionListener extends EventListener {
   55   
   56       /**
   57        * Invoked when a mouse button is pressed on a component and then
   58        * dragged.  <code>MOUSE_DRAGGED</code> events will continue to be
   59        * delivered to the component where the drag originated until the
   60        * mouse button is released (regardless of whether the mouse position
   61        * is within the bounds of the component).
   62        * <p>
   63        * Due to platform-dependent Drag&Drop implementations,
   64        * <code>MOUSE_DRAGGED</code> events may not be delivered during a native
   65        * Drag&Drop operation.
   66        */
   67       public void mouseDragged(MouseEvent e);
   68   
   69       /**
   70        * Invoked when the mouse cursor has been moved onto a component
   71        * but no buttons have been pushed.
   72        */
   73       public void mouseMoved(MouseEvent e);
   74   
   75   }

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