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JavaTM 2 Platform Std. Ed. v1.4.2

javax.swing
Class JComboBox.AccessibleJComboBox

java.lang.Object
  extended byjavax.accessibility.AccessibleContext
      extended byjava.awt.Component.AccessibleAWTComponent
          extended byjava.awt.Container.AccessibleAWTContainer
              extended byjavax.swing.JComponent.AccessibleJComponent
                  extended byjavax.swing.JComboBox.AccessibleJComboBox
All Implemented Interfaces:
AccessibleAction, AccessibleComponent, AccessibleExtendedComponent, AccessibleSelection, Serializable
Enclosing class:
JComboBox

protected class JComboBox.AccessibleJComboBox
extends JComponent.AccessibleJComponent
implements AccessibleAction, AccessibleSelection

This class implements accessibility support for the JComboBox class. It provides an implementation of the Java Accessibility API appropriate to Combo Box user-interface elements.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeansTM has been added to the java.beans package. Please see XMLEncoder.


Nested Class Summary
 
Nested classes inherited from class javax.swing.JComponent.AccessibleJComponent
JComponent.AccessibleJComponent.AccessibleContainerHandler, JComponent.AccessibleJComponent.AccessibleFocusHandler
 
Nested classes inherited from class java.awt.Component.AccessibleAWTComponent
Component.AccessibleAWTComponent.AccessibleAWTComponentHandler, Component.AccessibleAWTComponent.AccessibleAWTFocusHandler
 
Field Summary
 
Fields inherited from class javax.swing.JComponent.AccessibleJComponent
accessibleContainerHandler, accessibleFocusHandler
 
Fields inherited from class java.awt.Component.AccessibleAWTComponent
accessibleAWTComponentHandler, accessibleAWTFocusHandler
 
Fields inherited from class javax.accessibility.AccessibleContext
ACCESSIBLE_ACTION_PROPERTY, ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY, ACCESSIBLE_CARET_PROPERTY, ACCESSIBLE_CHILD_PROPERTY, ACCESSIBLE_DESCRIPTION_PROPERTY, ACCESSIBLE_HYPERTEXT_OFFSET, ACCESSIBLE_NAME_PROPERTY, ACCESSIBLE_SELECTION_PROPERTY, ACCESSIBLE_STATE_PROPERTY, ACCESSIBLE_TABLE_CAPTION_CHANGED, ACCESSIBLE_TABLE_COLUMN_DESCRIPTION_CHANGED, ACCESSIBLE_TABLE_COLUMN_HEADER_CHANGED, ACCESSIBLE_TABLE_MODEL_CHANGED, ACCESSIBLE_TABLE_ROW_DESCRIPTION_CHANGED, ACCESSIBLE_TABLE_ROW_HEADER_CHANGED, ACCESSIBLE_TABLE_SUMMARY_CHANGED, ACCESSIBLE_TEXT_PROPERTY, ACCESSIBLE_VALUE_PROPERTY, ACCESSIBLE_VISIBLE_DATA_PROPERTY, accessibleDescription, accessibleName, accessibleParent
 
Constructor Summary
protected JComboBox.AccessibleJComboBox()
           
 
Method Summary
 void addAccessibleSelection(int i)
          Adds the specified Accessible child of the object to the object's selection.
 void clearAccessibleSelection()
          Clears the selection in the object, so that no children in the object are selected.
 boolean doAccessibleAction(int i)
          Perform the specified Action on the object
 AccessibleAction getAccessibleAction()
          Get the AccessibleAction associated with this object.
 int getAccessibleActionCount()
          Returns the number of Actions available in this object.
 String getAccessibleActionDescription(int i)
          Return a description of the specified action of the object.
 Accessible getAccessibleChild(int i)
          Returns the nth Accessible child of the object.
 int getAccessibleChildrenCount()
          Returns the number of accessible children in the object.
 AccessibleRole getAccessibleRole()
          Get the role of this object.
 AccessibleSelection getAccessibleSelection()
          Get the AccessibleSelection associated with this object.
 Accessible getAccessibleSelection(int i)
          Returns an Accessible representing the specified selected child in the popup.
 int getAccessibleSelectionCount()
          Returns the number of Accessible children currently selected.
 boolean isAccessibleChildSelected(int i)
          Determines if the current child of this object is selected.
 void removeAccessibleSelection(int i)
          Removes the specified child of the object from the object's selection.
 void selectAllAccessibleSelection()
          Causes every child of the object to be selected if the object supports multiple selections.
 
Methods inherited from class javax.swing.JComponent.AccessibleJComponent
addPropertyChangeListener, getAccessibleDescription, getAccessibleKeyBinding, getAccessibleName, getAccessibleStateSet, getBorderTitle, getTitledBorderText, getToolTipText, removePropertyChangeListener
 
Methods inherited from class java.awt.Container.AccessibleAWTContainer
getAccessibleAt
 
Methods inherited from class java.awt.Component.AccessibleAWTComponent
addFocusListener, contains, getAccessibleComponent, getAccessibleIndexInParent, getAccessibleParent, getBackground, getBounds, getCursor, getFont, getFontMetrics, getForeground, getLocale, getLocation, getLocationOnScreen, getSize, isEnabled, isFocusTraversable, isShowing, isVisible, removeFocusListener, requestFocus, setBackground, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible
 
Methods inherited from class javax.accessibility.AccessibleContext
firePropertyChange, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleTable, getAccessibleText, getAccessibleValue, setAccessibleDescription, setAccessibleName, setAccessibleParent
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface javax.accessibility.AccessibleComponent
addFocusListener, contains, getAccessibleAt, getBackground, getBounds, getCursor, getFont, getFontMetrics, getForeground, getLocation, getLocationOnScreen, getSize, isEnabled, isFocusTraversable, isShowing, isVisible, removeFocusListener, requestFocus, setBackground, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible
 

Constructor Detail

JComboBox.AccessibleJComboBox

protected JComboBox.AccessibleJComboBox()
Method Detail

getAccessibleChildrenCount

public int getAccessibleChildrenCount()
Returns the number of accessible children in the object. If all of the children of this object implement Accessible, than this method should return the number of children of this object.

Overrides:
getAccessibleChildrenCount in class JComponent.AccessibleJComponent
Returns:
the number of accessible children in the object.

getAccessibleChild

public Accessible getAccessibleChild(int i)
Returns the nth Accessible child of the object. The child at index zero represents the popup. If the combo box is editable, the child at index one represents the editor.

Overrides:
getAccessibleChild in class JComponent.AccessibleJComponent
Parameters:
i - zero-based index of child
Returns:
the nth Accessible child of the object

getAccessibleRole

public AccessibleRole getAccessibleRole()
Get the role of this object.

Overrides:
getAccessibleRole in class JComponent.AccessibleJComponent
Returns:
an instance of AccessibleRole describing the role of the object
See Also:
AccessibleRole

getAccessibleAction

public AccessibleAction getAccessibleAction()
Get the AccessibleAction associated with this object. In the implementation of the Java Accessibility API for this class, return this object, which is responsible for implementing the AccessibleAction interface on behalf of itself.

Overrides:
getAccessibleAction in class AccessibleContext
Returns:
this object
See Also:
AccessibleAction

getAccessibleActionDescription

public String getAccessibleActionDescription(int i)
Return a description of the specified action of the object.

Specified by:
getAccessibleActionDescription in interface AccessibleAction
Parameters:
i - zero-based index of the actions
Returns:
a String description of the action
See Also:
AccessibleAction.getAccessibleActionCount()

getAccessibleActionCount

public int getAccessibleActionCount()
Returns the number of Actions available in this object. The default behavior of a combo box is to have one action.

Specified by:
getAccessibleActionCount in interface AccessibleAction
Returns:
1, the number of Actions in this object

doAccessibleAction

public boolean doAccessibleAction(int i)
Perform the specified Action on the object

Specified by:
doAccessibleAction in interface AccessibleAction
Parameters:
i - zero-based index of actions
Returns:
true if the the action was performed; else false.
See Also:
AccessibleAction.getAccessibleActionCount()

getAccessibleSelection

public AccessibleSelection getAccessibleSelection()
Get the AccessibleSelection associated with this object. In the implementation of the Java Accessibility API for this class, return this object, which is responsible for implementing the AccessibleSelection interface on behalf of itself.

Overrides:
getAccessibleSelection in class AccessibleContext
Returns:
this object
See Also:
AccessibleSelection

getAccessibleSelectionCount

public int getAccessibleSelectionCount()
Returns the number of Accessible children currently selected. If no children are selected, the return value will be 0.

Specified by:
getAccessibleSelectionCount in interface AccessibleSelection
Returns:
the number of items currently selected.

getAccessibleSelection

public Accessible getAccessibleSelection(int i)
Returns an Accessible representing the specified selected child in the popup. If there isn't a selection, or there are fewer children selected than the integer passed in, the return value will be null.

Note that the index represents the i-th selected child, which is different from the i-th child.

Specified by:
getAccessibleSelection in interface AccessibleSelection
Parameters:
i - the zero-based index of selected children
Returns:
the i-th selected child
See Also:
getAccessibleSelectionCount()

isAccessibleChildSelected

public boolean isAccessibleChildSelected(int i)
Determines if the current child of this object is selected.

Specified by:
isAccessibleChildSelected in interface AccessibleSelection
Parameters:
i - the zero-based index of the child in this Accessible object.
Returns:
true if the current child of this object is selected; else false
See Also:
AccessibleContext.getAccessibleChild(int)

addAccessibleSelection

public void addAccessibleSelection(int i)
Adds the specified Accessible child of the object to the object's selection. If the object supports multiple selections, the specified child is added to any existing selection, otherwise it replaces any existing selection in the object. If the specified child is already selected, this method has no effect.

Specified by:
addAccessibleSelection in interface AccessibleSelection
Parameters:
i - the zero-based index of the child
See Also:
AccessibleContext.getAccessibleChild(int)

removeAccessibleSelection

public void removeAccessibleSelection(int i)
Removes the specified child of the object from the object's selection. If the specified item isn't currently selected, this method has no effect.

Specified by:
removeAccessibleSelection in interface AccessibleSelection
Parameters:
i - the zero-based index of the child
See Also:
AccessibleContext.getAccessibleChild(int)

clearAccessibleSelection

public void clearAccessibleSelection()
Clears the selection in the object, so that no children in the object are selected.

Specified by:
clearAccessibleSelection in interface AccessibleSelection

selectAllAccessibleSelection

public void selectAllAccessibleSelection()
Causes every child of the object to be selected if the object supports multiple selections.

Specified by:
selectAllAccessibleSelection in interface AccessibleSelection

Copyright 2003 Sun Microsystems, Inc. All rights reserved