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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

package java.awt.event;

/**

 * An abstract adapter class for receiving mouse events.

 * The methods in this class are empty. This class exists as

 * convenience for creating listener objects.

 * <P>

 * Mouse events let you track when a mouse is pressed, released, clicked,

 * moved, dragged, when it enters a component, when it exits and

 * when a mouse wheel is moved.

 * <P>

 * Extend this class to create a {@code MouseEvent}

 * (including drag and motion events) or/and {@code MouseWheelEvent}

 * listener and override the methods for the events of interest. (If you implement the

 * {@code MouseListener},

 * {@code MouseMotionListener}

 * interface, you have to define all of

 * the methods in it. This abstract class defines null methods for them

 * all, so you can only have to define methods for events you care about.)

 * <P>

 * Create a listener object using the extended class and then register it with

 * a component using the component's {@code addMouseListener}

 * {@code addMouseMotionListener}, {@code addMouseWheelListener}

 * methods.

 * The relevant method in the listener object is invoked  and the {@code MouseEvent}

 * or {@code MouseWheelEvent}  is passed to it in following cases:

 * <ul>

 * <li>when a mouse button is pressed, released, or clicked (pressed and  released)

 * <li>when the mouse cursor enters or exits the component

 * <li>when the mouse wheel rotated, or mouse moved or dragged

 * </ul>

 *

 * @author Carl Quinn

 * @author Andrei Dmitriev

 *

 * @see MouseEvent

 * @see MouseWheelEvent

 * @see MouseListener

 * @see MouseMotionListener

 * @see MouseWheelListener

 * @see <a href="https://docs.oracle.com/javase/tutorial/uiswing/events/mouselistener.html">Tutorial: Writing a Mouse Listener</a>

 *

 * @since 1.1

 */

public abstract class MouseAdapter implements MouseListener, MouseWheelListener, MouseMotionListener {

    /**

     * {@inheritDoc}

     */

    public void mouseClicked(MouseEvent e) {}

    /**

     * {@inheritDoc}

     */

    public void mousePressed(MouseEvent e) {}

    /**

     * {@inheritDoc}

     */

    public void mouseReleased(MouseEvent e) {}

    /**

     * {@inheritDoc}

     */

    public void mouseEntered(MouseEvent e) {}

    /**

     * {@inheritDoc}

     */

    public void mouseExited(MouseEvent e) {}

    /**

     * {@inheritDoc}

     * @since 1.6

     */

    public void mouseWheelMoved(MouseWheelEvent e){}

    /**

     * {@inheritDoc}

     * @since 1.6

     */

    public void mouseDragged(MouseEvent e){}

    /**

     * {@inheritDoc}

     * @since 1.6

     */

    public void mouseMoved(MouseEvent e){}

}