- java.lang.Object
-
- java.awt.event.ComponentAdapter
-
- javax.swing.plaf.basic.BasicTreeUI.ComponentHandler
-
- All Implemented Interfaces:
- ActionListener, ComponentListener, EventListener
- Enclosing class:
- BasicTreeUI
public class BasicTreeUI.ComponentHandler extends ComponentAdapter implements ActionListener
Updates the preferred size when scrolling (if necessary).
-
-
Field Summary
Fields Modifier and Type Field and Description protected JScrollBarscrollBarScrollBar that is being adjusted.protected TimertimerTimer used when inside a scrollpane and the scrollbar is adjusting.
-
Constructor Summary
Constructors Constructor and Description BasicTreeUI.ComponentHandler()
-
Method Summary
Methods Modifier and Type Method and Description voidactionPerformed(ActionEvent ae)Public as a result of Timer.voidcomponentMoved(ComponentEvent e)Invoked when the component's position changes.protected JScrollPanegetScrollPane()Returns the JScrollPane housing the JTree, or null if one isn't found.protected voidstartTimer()Creates, if necessary, and starts a Timer to check if need to resize the bounds.-
Methods inherited from class java.awt.event.ComponentAdapter
componentHidden, componentResized, componentShown
-
-
-
-
Field Detail
-
timer
protected Timer timer
Timer used when inside a scrollpane and the scrollbar is adjusting.
-
scrollBar
protected JScrollBar scrollBar
ScrollBar that is being adjusted.
-
-
Method Detail
-
componentMoved
public void componentMoved(ComponentEvent e)
Description copied from class:ComponentAdapterInvoked when the component's position changes.- Specified by:
componentMovedin interfaceComponentListener- Overrides:
componentMovedin classComponentAdapter
-
startTimer
protected void startTimer()
Creates, if necessary, and starts a Timer to check if need to resize the bounds.
-
getScrollPane
protected JScrollPane getScrollPane()
Returns the JScrollPane housing the JTree, or null if one isn't found.
-
actionPerformed
public void actionPerformed(ActionEvent ae)
Public as a result of Timer. If the scrollBar is null, or not adjusting, this stops the timer and updates the sizing.- Specified by:
actionPerformedin interfaceActionListener
-
-
Document created the 11/06/2005, last modified the 04/03/2020
Source of the printed document:https://www.gaudry.be/en/java-api-rf-javax/swing/plaf/basic/basictreeui.componenthandler.html
The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.
References
These references and links indicate documents consulted during the writing of this page, or which may provide additional information, but the authors of these sources can not be held responsible for the content of this page.
The author This site is solely responsible for the way in which the various concepts, and the freedoms that are taken with the reference works, are presented here. Remember that you must cross multiple source information to reduce the risk of errors.
