Class BasicScrollBarUI.TrackListener
java.lang.Object
java.awt.event.MouseAdapter
javax.swing.plaf.basic.BasicScrollBarUI.TrackListener
- All Implemented Interfaces:
MouseListener, MouseMotionListener, MouseWheelListener, EventListener
- Enclosing class:
BasicScrollBarUI
Track mouse drags.
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Field Summary
FieldsModifier and TypeFieldDescriptionprotected int
Current mouse x positionprotected int
Current mouse y positionprotected int
The offset -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
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
Invoked when the mouse exits the scrollbar.void
Invoked when the mouse cursor has been moved onto a component but no buttons have been pushed.void
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
Invoked when a mouse button has been released on a component.Methods inherited from class MouseAdapter
mouseClicked, mouseEntered, mouseWheelMoved
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Field Details
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offset
protected transient int offsetThe offset -
currentMouseX
protected transient int currentMouseXCurrent mouse x position -
currentMouseY
protected transient int currentMouseYCurrent mouse y position
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Constructor Details
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TrackListener
protected TrackListener()Constructs aTrackListener
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Method Details
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mouseReleased
Invoked when a mouse button has been released on a component.- Specified by:
mouseReleased
in interfaceMouseListener
- Overrides:
mouseReleased
in classMouseAdapter
- Parameters:
e
- the event to be processed
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mousePressed
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 interfaceMouseListener
- Overrides:
mousePressed
in classMouseAdapter
- Parameters:
e
- the event to be processed
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mouseDragged
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 interfaceMouseMotionListener
- Overrides:
mouseDragged
in classMouseAdapter
- Parameters:
e
- the event to be processed
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mouseMoved
Invoked when the mouse cursor has been moved onto a component but no buttons have been pushed.- Specified by:
mouseMoved
in interfaceMouseMotionListener
- Overrides:
mouseMoved
in classMouseAdapter
- Parameters:
e
- the event to be processed
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mouseExited
Invoked when the mouse exits the scrollbar.- Specified by:
mouseExited
in interfaceMouseListener
- Overrides:
mouseExited
in classMouseAdapter
- Parameters:
e
- MouseEvent further describing the event- Since:
- 1.5
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