META-INF.modules.java.desktop.classes.java.awt.event.MouseMotionAdapter Maven / Gradle / Ivy
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package java.awt.event;
/**
* An abstract adapter class for receiving mouse motion events.
* The methods in this class are empty. This class exists as
* convenience for creating listener objects.
*
* Mouse motion events occur when a mouse is moved or dragged.
* (Many such events will be generated in a normal program.
* To track clicks and other mouse events, use the MouseAdapter.)
*
* Extend this class to create a {@code MouseEvent} listener
* and override the methods for the events of interest. (If you implement the
* {@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.)
*
* Create a listener object using the extended class and then register it with
* a component using the component's {@code addMouseMotionListener}
* method. When the mouse is moved or dragged, the relevant method in the
* listener object is invoked and the {@code MouseEvent} is passed to it.
*
* @author Amy Fowler
*
* @see MouseEvent
* @see MouseMotionListener
* @see Tutorial: Writing a Mouse Motion Listener
*
* @since 1.1
*/
public abstract class MouseMotionAdapter implements MouseMotionListener {
/**
* Invoked when a mouse button is pressed on a component and then
* dragged. Mouse drag events will continue to be delivered to
* the component where the first originated until the mouse button is
* released (regardless of whether the mouse position is within the
* bounds of the component).
*/
public void mouseDragged(MouseEvent e) {}
/**
* Invoked when the mouse button has been moved on a component
* (with no buttons no down).
*/
public void mouseMoved(MouseEvent e) {}
}