org.compiere.apps
Class AFocusTraversalPolicy

java.lang.Object
  java.awt.FocusTraversalPolicy
      javax.swing.InternalFrameFocusTraversalPolicy
          javax.swing.SortingFocusTraversalPolicy
              javax.swing.LayoutFocusTraversalPolicy
                  org.compiere.apps.AFocusTraversalPolicy

All Implemented Interfaces:

Serializable

public class AFocusTraversalPolicy
extends LayoutFocusTraversalPolicy

Compiere Application Focus Traversal Policy

Version:

$Id: AFocusTraversalPolicy.java,v 1.2 2006/07/30 00:51:27 jjanke Exp $

Author:

Jorg Janke

See Also:

Serialized Form

Constructor Summary

AFocusTraversalPolicy()
Constructor

Method Summary

protected boolean	accept(Component aComponent) Determines whether the specified Component is an acceptable choice as the new focus owner.
static AFocusTraversalPolicy	get() Get singleton
Component	getDefaultComponent(Container aContainer) Get Default Component
Component	getFirstComponent(Container aContainer) Get First Component

Methods inherited from class javax.swing.LayoutFocusTraversalPolicy

getComponentAfter, getComponentBefore, getLastComponent

Methods inherited from class javax.swing.SortingFocusTraversalPolicy

getComparator, getImplicitDownCycleTraversal, setComparator, setImplicitDownCycleTraversal

Methods inherited from class javax.swing.InternalFrameFocusTraversalPolicy

getInitialComponent

Methods inherited from class java.awt.FocusTraversalPolicy

getInitialComponent

Methods inherited from class java.lang.Object

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

Constructor Detail

AFocusTraversalPolicy

public AFocusTraversalPolicy()

Constructor

Method Detail

get

public static AFocusTraversalPolicy get()

Get singleton

Returns:

AFocusTraversalPolicy

getDefaultComponent

public Component getDefaultComponent(Container aContainer)

Get Default Component

Overrides:

getDefaultComponent in class SortingFocusTraversalPolicy

Parameters:

aContainer - container

Returns:

default or null

getFirstComponent

public Component getFirstComponent(Container aContainer)

Get First Component

Overrides:

getFirstComponent in class LayoutFocusTraversalPolicy

Parameters:

aContainer - container

Returns:

first component to focus

accept

protected boolean accept(Component aComponent)

Determines whether the specified Component is an acceptable choice as the new focus owner. This method performs the following sequence of operations:

1. Checks whether aComponent is visible, displayable, enabled, and focusable. If any of these properties is false, this method returns false.
2. If aComponent is an instance of JTable, returns true.
3. If aComponent is an instance of JComboBox, then returns the value of aComponent.getUI().isFocusTraversable(aComponent).
4. If aComponent is a JComponent with a JComponent.WHEN_FOCUSED InputMap that is neither null nor empty, returns true.
5. Returns the value of DefaultFocusTraversalPolicy.accept(aComponent).

Overrides:

accept in class LayoutFocusTraversalPolicy

Parameters:

aComponent - the Component whose fitness as a focus owner is to be tested

Returns:

true if aComponent is a valid choice for a focus owner; otherwise false

See Also:

Component.isVisible(), Component.isDisplayable(), Component.isEnabled(), Component.isFocusable(), ComboBoxUI.isFocusTraversable(javax.swing.JComboBox), JComponent.getInputMap(), DefaultFocusTraversalPolicy.accept(java.awt.Component)