ContainerFocusTracker

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Class

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Deprecated

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edu.stanford.genetics.treeview
Class ContainerFocusTracker

java.lang.Object
  edu.stanford.genetics.treeview.ContainerFocusTracker

All Implemented Interfaces:: java.awt.event.ContainerListener, java.util.EventListener, java.awt.event.FocusListener

public class ContainerFocusTracker
extends java.lang.Object
implements java.awt.event.FocusListener, java.awt.event.ContainerListener

Note: I, Alok, didn't write this class. Class for Containers which won't take the keyboard focus. Because of what appears to be a bug in Java 1.1, when you move the focus on to a Frame, or other Container, it keeps the focus, rather than handing it on to an appropriate tabstop inside it. This class collects all focus events for the Container and its contents, and will correct the problem. It also monitors the Container, and keeps track if the focussed component is removed from the container. To use, just create a tracker, passing it the Container you want to deal with.

Field Summary

(package private) java.awt.Container container


(package private) static boolean debug


(package private) java.awt.Component focus


(package private) static RCSVersion version


Constructor Summary

ContainerFocusTracker(java.awt.Container c)


Method Summary

private void addComponent(java.awt.Component c)


private void addContainer(java.awt.Container container)


void componentAdded(java.awt.event.ContainerEvent e)
          This method is called when a component is added to the container.

void componentRemoved(java.awt.event.ContainerEvent e)
          This method is called when a component is removed from the container.

void focusGained(java.awt.event.FocusEvent e)
          This method is called when a component gains the keyboard focus.

void focusLost(java.awt.event.FocusEvent e)
          This method is invoked when a component loses the keyboard focus.

private void removeComponent(java.awt.Component c)


private void removeContainer(java.awt.Container container)


private boolean switchFocus(java.awt.Container container)


Methods inherited from class java.lang.Object

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

Field Detail

version

static RCSVersion version

container

java.awt.Container container

focus

java.awt.Component focus

debug

static final boolean debug

See Also:: Constant Field Values

Constructor Detail