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javax.swing
Class JComboBox.AccessibleJComboBox

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

All Implemented Interfaces:

Serializable, AccessibleAction, AccessibleComponent, AccessibleExtendedComponent, AccessibleSelection

Enclosing class:

JComboBox

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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 XMLEncoder.

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Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.JComponent.AccessibleJComponent
JComponent.AccessibleJComponent.AccessibleContainerHandler, JComponent.AccessibleJComponent.AccessibleFocusHandler

Nested classes/interfaces 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_COMPONENT_BOUNDS_CHANGED, ACCESSIBLE_DESCRIPTION_PROPERTY, ACCESSIBLE_HYPERTEXT_OFFSET, ACCESSIBLE_INVALIDATE_CHILDREN, 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_ATTRIBUTES_CHANGED, ACCESSIBLE_TEXT_PROPERTY, ACCESSIBLE_VALUE_PROPERTY, ACCESSIBLE_VISIBLE_DATA_PROPERTY, accessibleDescription, accessibleName, accessibleParent

Fields inherited from interface javax.accessibility.AccessibleAction
DECREMENT, INCREMENT, TOGGLE_EXPAND

Constructor Summary
JComboBox.AccessibleJComboBox() Returns an AccessibleJComboBox instance

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.
AccessibleStateSet	getAccessibleStateSet() Gets the state set of this object.
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, 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

public JComboBox.AccessibleJComboBox()

Returns an AccessibleJComboBox instance

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.

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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

See Also:

AccessibleContext.getAccessibleChildrenCount()

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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

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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

See Also:

AccessibleStateSet, AccessibleState, JComponent.AccessibleJComponent.addPropertyChangeListener(java.beans.PropertyChangeListener)

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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

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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()

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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

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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()

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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

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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.

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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()

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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)

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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)

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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)

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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

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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

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