Class BasicSliderUI.TrackListener
- java.lang.Object
-
- java.awt.event.MouseAdapter
-
- javax.swing.event.MouseInputAdapter
-
- javax.swing.plaf.basic.BasicSliderUI.TrackListener
- All Implemented Interfaces:
-
MouseListener
,MouseMotionListener
,MouseWheelListener
,EventListener
,MouseInputListener
- Enclosing class:
- BasicSliderUI
public class BasicSliderUI.TrackListener extends MouseInputAdapter
Track mouse movements. This class should be treated as a "protected" inner class. Instantiate it only within subclasses of Foo
.
Field Summary
Modifier and Type | Field | Description |
---|---|---|
protected int | currentMouseX | Current mouse x. |
protected int | currentMouseY | Current mouse y. |
protected int | offset | The offset |
Constructor Summary
Constructor | Description |
---|---|
TrackListener() |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
void | mouseDragged(MouseEvent e) | Set the models value to the position of the top/left of the thumb relative to the origin of the track. |
void | mousePressed(MouseEvent e) | If the mouse is pressed above the "thumb" component then reduce the scrollbars value by one page ("page up"), otherwise increase it by one page. |
boolean | shouldScroll(int direction) | Returns if scrolling should occur |
Methods declared in class java.awt.event.MouseAdapter
mouseMoved, mouseWheelMoved
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods declared in interface java.awt.event.MouseListener
mouseClicked, mouseEntered, mouseExited, mouseReleased
Methods declared in interface java.awt.event.MouseMotionListener
mouseMoved
Field Detail
offset
protected transient int offset
The offset
currentMouseX
protected transient int currentMouseX
Current mouse x.
currentMouseY
protected transient int currentMouseY
Current mouse y.
Constructor Detail
TrackListener
public TrackListener()
Method Detail
mousePressed
public void mousePressed(MouseEvent e)
If the mouse is pressed above the "thumb" component then reduce the scrollbars value by one page ("page up"), otherwise increase it by one page. If there is no thumb then page up if the mouse is in the upper half of the track.
- Parameters:
-
e
- the event to be processed
shouldScroll
public boolean shouldScroll(int direction)
Returns if scrolling should occur
- Parameters:
-
direction
- the direction. - Returns:
- if scrolling should occur
mouseDragged
public void mouseDragged(MouseEvent e)
Set the models value to the position of the top/left of the thumb relative to the origin of the track.
- Specified by:
-
mouseDragged
in interfaceMouseMotionListener
- Overrides:
-
mouseDragged
in classMouseAdapter
- Parameters:
-
e
- the event to be processed