Class BasicScrollBarUI.TrackListener

All Implemented Interfaces:
MouseListener, MouseMotionListener, MouseWheelListener, EventListener
Enclosing class:
BasicScrollBarUI

protected class BasicScrollBarUI.TrackListener
extends MouseAdapter
implements MouseMotionListener

Track mouse drags.

Fields

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

Constructors

Modifier Constructor and Description
protected TrackListener()

Methods

Modifier and Type Method and Description
void mouseDragged(MouseEvent e)

Set the models value to the position of the thumb's top of Vertical scrollbar, or the left/right of Horizontal scrollbar in left-to-right/right-to-left scrollbar relative to the origin of the track.
void mouseExited(MouseEvent e)

Invoked when the mouse exits the scrollbar.
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.

Methods inherited from class java.awt.event.MouseAdapter

mouseClicked, mouseEntered, mouseWheelMoved

Methods inherited from class java.lang.Object

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

Fields

offset

protected transient int offset

currentMouseX

protected transient int currentMouseX

currentMouseY

protected transient int currentMouseY

Constructors

TrackListener

protected 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

mouseDragged

public void mouseDragged(MouseEvent e)

Set the models value to the position of the thumb's top of Vertical scrollbar, or the left/right of Horizontal scrollbar in left-to-right/right-to-left scrollbar 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

mouseExited

public void mouseExited(MouseEvent e)

Invoked when the mouse exits the scrollbar.

Specified by:
mouseExited in interface MouseListener
Overrides:
mouseExited in class MouseAdapter
Parameters:
e - MouseEvent further describing the event
Since:
1.5

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https://docs.oracle.com/javase/8/docs/api/javax/swing/plaf/basic/BasicScrollBarUI.TrackListener.html