javax.swing
class JComboBox.AccessibleJComboBox

java.lang.Object javax.accessibility.AccessibleContext java.awt.Component.AccessibleAWTComponent java.awt.Container.AccessibleAWTContainer javax.swing.JComponent.AccessibleJComponent javax.swing.JComboBox.AccessibleJComboBox

All Implemented Interfaces:

Serializable, AccessibleAction, AccessibleComponent, AccessibleExtendedComponent, AccessibleSelection

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 JavaBeans^TM has been added to the java.beans package. Please see {@link java.beans.XMLEncoder}.

JComboBox.AccessibleJComboBox

public JComboBox.AccessibleJComboBox()

Returns an AccessibleJComboBox instance

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.

Parameters:

i - the zero-based index of the child

clearAccessibleSelection

public void clearAccessibleSelection()

Clears the selection in the object, so that no children in the object are selected.

doAccessibleAction

public boolean doAccessibleAction(int i)

Perform the specified Action on the object

Parameters:

i - zero-based index of actions

Returns:

true if the the action was performed; else false.

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

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.

Returns:

1, the number of Actions in this object

getAccessibleActionDescription

public String getAccessibleActionDescription(int i)

Return a description of the specified action of the object.

Parameters:

i - zero-based index of the actions

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

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.

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

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

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.

Parameters:

i - the zero-based index of selected children

Returns:

the i-th selected child

getAccessibleSelectionCount

public int getAccessibleSelectionCount()

Returns the number of Accessible children currently selected. If no children are selected, the return value will be 0.

Returns:

the number of items currently selected.

getAccessibleStateSet

public AccessibleStateSet getAccessibleStateSet()

Gets the state set of this object. The AccessibleStateSet of an object is composed of a set of unique AccessibleStates. A change in the AccessibleStateSet of an object will cause a PropertyChangeEvent to be fired for the ACCESSIBLE_STATE_PROPERTY property.

Overrides:

getAccessibleStateSet in class JComponent.AccessibleJComponent

Returns:

an instance of AccessibleStateSet containing the current state set of the object

isAccessibleChildSelected

public boolean isAccessibleChildSelected(int i)

Determines if the current child of this object is selected.

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

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.

Parameters:

i - the zero-based index of the child

selectAllAccessibleSelection

public void selectAllAccessibleSelection()

Causes every child of the object to be selected if the object supports multiple selections.