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

Fields
Modifier and Type	Field	Description
`protected int`	`currentMouseX`	Current mouse x.
`protected int`	`currentMouseY`	Current mouse y.
`protected int`	`offset`	The offset

Constructor Summary

Constructors
Constructor	Description
`TrackListener()`

Method Summary

All Methods Instance Methods Concrete Methods
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 interface MouseMotionListener
Overrides:: mouseDragged in class MouseAdapter
Parameters:: e - the event to be processed