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 SummaryFieldsModifier and TypeFieldDescriptionprotected intCurrent mouse x positionprotected intCurrent mouse y positionprotected intThe offset
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Constructor SummaryConstructors
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Method SummaryModifier and TypeMethodDescriptionvoidSet 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.voidInvoked when the mouse exits the scrollbar.voidInvoked when the mouse cursor has been moved onto a component but no buttons have been pushed.voidIf the mouse is pressed above the "thumb" component then reduce the scrollbars value by one page ("page up"), otherwise increase it by one page.Methods declared in class java.awt.event.MouseAdaptermouseClicked, mouseEntered, mouseMoved, mouseReleased, mouseWheelMoved
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Field Details- 
offsetprotected transient int offsetThe offset
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currentMouseXprotected transient int currentMouseXCurrent mouse x position
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currentMouseYprotected transient int currentMouseYCurrent mouse y position
 
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Constructor Details- 
TrackListenerprotected TrackListener()Constructs aTrackListener.
 
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Method Details- 
mousePressedIf 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:
- mousePressedin interface- MouseListener
- Parameters:
- e- the event to be processed
 
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mouseDraggedSet 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:
- mouseDraggedin interface- MouseMotionListener
- Overrides:
- mouseDraggedin class- MouseAdapter
- Parameters:
- e- the event to be processed
 
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mouseMovedInvoked when the mouse cursor has been moved onto a component but no buttons have been pushed.- Specified by:
- mouseMovedin interface- MouseMotionListener
- Overrides:
- mouseMovedin class- MouseAdapter
- Parameters:
- e- the event to be processed
 
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mouseExitedInvoked when the mouse exits the scrollbar.- Specified by:
- mouseExitedin interface- MouseListener
- Parameters:
- e- MouseEvent further describing the event
- Since:
- 1.5
 
 
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