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src/java.desktop/share/classes/java/awt/event/MouseMotionAdapter.java

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  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 /**
  29  * An abstract adapter class for receiving mouse motion events.
  30  * The methods in this class are empty. This class exists as
  31  * convenience for creating listener objects.
  32  * <P>
  33  * Mouse motion events occur when a mouse is moved or dragged.
  34  * (Many such events will be generated in a normal program.
  35  * To track clicks and other mouse events, use the MouseAdapter.)
  36  * <P>
  37  * Extend this class to create a <code>MouseEvent</code> listener
  38  * and override the methods for the events of interest. (If you implement the
  39  * <code>MouseMotionListener</code> interface, you have to define all of
  40  * the methods in it. This abstract class defines null methods for them
  41  * all, so you can only have to define methods for events you care about.)
  42  * <P>
  43  * Create a listener object using the extended class and then register it with
  44  * a component using the component's <code>addMouseMotionListener</code>
  45  * method. When the mouse is moved or dragged, the relevant method in the
  46  * listener object is invoked and the <code>MouseEvent</code> is passed to it.
  47  *
  48  * @author Amy Fowler
  49  *
  50  * @see MouseEvent
  51  * @see MouseMotionListener
  52  * @see <a href="http://docs.oracle.com/javase/tutorial/uiswing/events/mousemotionlistener.html">Tutorial: Writing a Mouse Motion Listener</a>
  53  *
  54  * @since 1.1
  55  */
  56 public abstract class MouseMotionAdapter implements MouseMotionListener {
  57     /**
  58      * Invoked when a mouse button is pressed on a component and then
  59      * dragged.  Mouse drag events will continue to be delivered to
  60      * the component where the first originated until the mouse button is
  61      * released (regardless of whether the mouse position is within the
  62      * bounds of the component).
  63      */
  64     public void mouseDragged(MouseEvent e) {}
  65 
  66     /**


  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 /**
  29  * An abstract adapter class for receiving mouse motion events.
  30  * The methods in this class are empty. This class exists as
  31  * convenience for creating listener objects.
  32  * <P>
  33  * Mouse motion events occur when a mouse is moved or dragged.
  34  * (Many such events will be generated in a normal program.
  35  * To track clicks and other mouse events, use the MouseAdapter.)
  36  * <P>
  37  * Extend this class to create a {@code MouseEvent} listener
  38  * and override the methods for the events of interest. (If you implement the
  39  * {@code MouseMotionListener} interface, you have to define all of
  40  * the methods in it. This abstract class defines null methods for them
  41  * all, so you can only have to define methods for events you care about.)
  42  * <P>
  43  * Create a listener object using the extended class and then register it with
  44  * a component using the component's {@code addMouseMotionListener}
  45  * method. When the mouse is moved or dragged, the relevant method in the
  46  * listener object is invoked and the {@code MouseEvent} is passed to it.
  47  *
  48  * @author Amy Fowler
  49  *
  50  * @see MouseEvent
  51  * @see MouseMotionListener
  52  * @see <a href="http://docs.oracle.com/javase/tutorial/uiswing/events/mousemotionlistener.html">Tutorial: Writing a Mouse Motion Listener</a>
  53  *
  54  * @since 1.1
  55  */
  56 public abstract class MouseMotionAdapter implements MouseMotionListener {
  57     /**
  58      * Invoked when a mouse button is pressed on a component and then
  59      * dragged.  Mouse drag events will continue to be delivered to
  60      * the component where the first originated until the mouse button is
  61      * released (regardless of whether the mouse position is within the
  62      * bounds of the component).
  63      */
  64     public void mouseDragged(MouseEvent e) {}
  65 
  66     /**
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