is new.
java.lang.Objectjava.awt.event.MouseAdapter
,
MouseMotionListener
,
MouseWheelListener
,
EventListener
,
MouseInputAdapter
,
ToolTipManager
public abstract class MouseAdapter
,
MouseWheelListener
,
MouseMotionListenerAn abstract adapter class for receiving mouse events. The methods in this class are empty. This class exists as convenience for creating listener objects.
Mouse events let you track when a mouse is pressed, released, clicked,
moved, dragged,
when it enters a component,
and
when it
exits
exits. (To track mouse moves
and
when a
mouse
wheel is moved.
drags, use the MouseMotionAdapter.)
Extend this class to create a MouseEvent
(including drag and motion events) or/and MouseWheelEvent
listener and override the methods for the events of interest. (If you implement the
MouseListener, MouseMotionListener
MouseListener
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 addMouseListener
addMouseMotionListener, addMouseWheelListener methods. The
method. When a mouse button is pressed, released, or clicked (pressed and released), or when the mouse cursor enters or exits the component, the
relevant method in the listener object is invoked and the MouseEvent
or MouseWheelEvent
is passed to
it in following cases:
it.
when a mouse button is pressed, released, or clicked (pressed and released)
when the mouse cursor enters or exits the component
when the mouse wheel rotated, or mouse moved or dragged
,
MouseWheelEvent
,
MouseListener
,
MouseMotionListener
MouseWheelListener
,
Tutorial: Writing a Mouse Listener
| Constructor Summary | |
|---|---|
|
MouseAdapter
() |
|
| Method Summary | |
|---|---|
| void |
mouseClicked
(
MouseEvent
Invoked when the mouse
button
has been clicked
(pressed and released)
on a component. |
void
|
mouseDragged
(
MouseEvent
Invoked when a mouse button is pressed on a component and then dragged.
|
| void |
mouseEntered
(
MouseEvent
e) Invoked when the mouse enters a component. |
| void |
mouseExited
(
MouseEvent
e) Invoked when the mouse exits a component. |
void
|
mouseMoved
(
MouseEvent
Invoked when the mouse cursor has been moved onto a component but no buttons have been pushed.
|
| void |
mousePressed
(
MouseEvent
e) Invoked when a mouse button has been pressed on a component. |
| void |
mouseReleased
(
MouseEvent
e) Invoked when a mouse button has been released on a component. |
void
|
mouseWheelMoved
(
MouseWheelEvent
Invoked when the mouse wheel is rotated.
|
| Methods inherited from class java.lang. Object |
|---|
| clone , equals , finalize , getClass , hashCode , notify , notifyAll , toString , wait , wait , wait |
| Constructor Detail |
|---|
public MouseAdapter()
| Method Detail |
|---|
public void mouseClicked(MouseEvent e)
button
has been clicked
(pressed and released)
on a component.
public void mousePressed(MouseEvent e)
public void mouseReleased(MouseEvent e)
public void mouseEntered(MouseEvent e)
public void mouseExited(MouseEvent e)
mouseWheelMoved
public void
mouseWheelMoved
(
MouseWheelEvent
e)
Invoked when the mouse wheel is rotated.
Specified by:
mouseWheelMoved
in interface
MouseWheelListener
Since:
1.6
See Also:
MouseWheelEvent
mouseDragged
public void
mouseDragged
(
MouseEvent
e)
Invoked when a mouse button is pressed on a component and then dragged. 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).
Due to platform-dependent Drag&Drop implementations, MOUSE_DRAGGED events may not be delivered during a native Drag&Drop operation.
Specified by:
mouseDragged
in interface
MouseMotionListener
Since:
1.6
mouseMoved
public void
mouseMoved
(
MouseEvent
e)
Invoked when the mouse cursor has been moved onto a component but no buttons have been pushed.
Specified by:
mouseMoved
in interface
MouseMotionListener
Since:
1.6