Class 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.

Fields

Modifier and Type Field and Description
protected int currentMouseX
protected int currentMouseY
protected int offset

Constructors

Constructor and Description
TrackListener()

Methods

Modifier and Type Method and 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 mouseMoved(MouseEvent e)

Invoked when the mouse cursor has been moved onto a component but no buttons have been pushed.
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.
void mouseReleased(MouseEvent e)

Invoked when a mouse button has been released on a component.
boolean shouldScroll(int direction)

Methods inherited from class java.awt.event.MouseAdapter

mouseClicked, mouseEntered, mouseExited, mouseWheelMoved

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.awt.event.MouseListener

mouseClicked, mouseEntered, mouseExited

Fields

offset

protected transient int offset

currentMouseX

protected transient int currentMouseX

currentMouseY

protected transient int currentMouseY

Constructors

TrackListener

public TrackListener()

Methods

mouseReleased

public void mouseReleased(MouseEvent e)

Description copied from class: MouseAdapter

Invoked when a mouse button has been released on a component.

Specified by:
mouseReleased in interface MouseListener
Overrides:
mouseReleased in class MouseAdapter

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.

Specified by:
mousePressed in interface MouseListener
Overrides:
mousePressed in class MouseAdapter

shouldScroll

public boolean shouldScroll(int direction)

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

mouseMoved

public void mouseMoved(MouseEvent e)

Description copied from class: MouseAdapter

Invoked when the mouse cursor has been moved onto a component but no buttons have been pushed.

Specified by:
mouseMoved in interface MouseMotionListener
Overrides:
mouseMoved in class MouseAdapter

© 1993, 2020, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/javase/8/docs/api/javax/swing/plaf/basic/BasicSliderUI.TrackListener.html