javax.swing.plaf.basic
Class BasicScrollBarUI.TrackListener
java.lang.Object
java.awt.event.MouseAdapter
javax.swing.plaf.basic.BasicScrollBarUI.TrackListener
- All Implemented Interfaces:
- EventListener, MouseListener, MouseMotionListener
- Enclosing class:
- BasicScrollBarUI
- protected class BasicScrollBarUI.TrackListener
- extends MouseAdapter
- implements MouseMotionListener
Track mouse drags.
Method Summary |
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 |
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. |
private void |
setValueFrom(MouseEvent e)
|
private void |
startScrollTimerIfNecessary()
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
offset
protected transient int offset
currentMouseX
protected transient int currentMouseX
currentMouseY
protected transient int currentMouseY
direction
private transient int direction
BasicScrollBarUI.TrackListener
protected BasicScrollBarUI.TrackListener()
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
setValueFrom
private void setValueFrom(MouseEvent e)
startScrollTimerIfNecessary
private void startScrollTimerIfNecessary()
mouseMoved
public void mouseMoved(MouseEvent e)
- Description copied from interface:
MouseMotionListener
- Invoked when the mouse cursor has been moved onto a component
but no buttons have been pushed.
- Specified by:
mouseMoved
in interface MouseMotionListener