CheckboxMenuItem.AccessibleAWTCheckboxMenuItem (Java 2 Platform SE 5.0) - JDK 5 Documentation v1.5.0, Java 2 SDK 英文文档

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Java^TM 2 Platform
Standard Ed. 5.0

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java.awt
Class CheckboxMenuItem.AccessibleAWTCheckboxMenuItem

java.lang.Object
  javax.accessibility.AccessibleContext
      java.awt.MenuComponent.AccessibleAWTMenuComponent
          java.awt.MenuItem.AccessibleAWTMenuItem
              java.awt.CheckboxMenuItem.AccessibleAWTCheckboxMenuItem

All Implemented Interfaces:: Serializable, AccessibleAction, AccessibleComponent, AccessibleSelection, AccessibleValue

Enclosing class:: CheckboxMenuItem

protected class CheckboxMenuItem.AccessibleAWTCheckboxMenuItem
extends MenuItem.AccessibleAWTMenuItem
implements AccessibleAction, AccessibleValue
extends MenuItem.AccessibleAWTMenuItem
implements AccessibleAction, AccessibleValue

Inner class of CheckboxMenuItem used to provide default support for accessibility. This class is not meant to be used directly by application developers, but is instead meant only to be subclassed by menu component developers.

This class implements accessibility support for the CheckboxMenuItem class. It provides an implementation of the Java Accessibility API appropriate to checkbox menu item user-interface elements.

See Also:: Serialized Form

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
`protected`	`CheckboxMenuItem.AccessibleAWTCheckboxMenuItem()`

Method Summary
`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.
`AccessibleRole`	`getAccessibleRole()` Get the role of this object.
`AccessibleValue`	`getAccessibleValue()` Get the AccessibleValue associated with this object.
`Number`	`getCurrentAccessibleValue()` Get the value of this object as a Number.
`Number`	`getMaximumAccessibleValue()` Get the maximum value of this object as a Number.
`Number`	`getMinimumAccessibleValue()` Get the minimum value of this object as a Number.
`boolean`	`setCurrentAccessibleValue(Number n)` Set the value of this object as a Number.

Methods inherited from class java.awt.MenuItem.AccessibleAWTMenuItem
`getAccessibleName`

Methods inherited from class java.awt.MenuComponent.AccessibleAWTMenuComponent
addAccessibleSelection, addFocusListener, clearAccessibleSelection, contains, getAccessibleAt, getAccessibleChild, getAccessibleChildrenCount, getAccessibleComponent, getAccessibleDescription, getAccessibleIndexInParent, getAccessibleParent, getAccessibleSelection, getAccessibleSelection, getAccessibleSelectionCount, getAccessibleStateSet, getBackground, getBounds, getCursor, getFont, getFontMetrics, getForeground, getLocale, getLocation, getLocationOnScreen, getSize, isAccessibleChildSelected, isEnabled, isFocusTraversable, isShowing, isVisible, removeAccessibleSelection, removeFocusListener, requestFocus, selectAllAccessibleSelection, setBackground, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible

Methods inherited from class javax.accessibility.AccessibleContext
`addPropertyChangeListener, firePropertyChange, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleTable, getAccessibleText, removePropertyChangeListener, setAccessibleDescription, setAccessibleName, setAccessibleParent`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

CheckboxMenuItem.AccessibleAWTCheckboxMenuItem

protected CheckboxMenuItem.AccessibleAWTCheckboxMenuItem()

Method Detail

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 MenuItem.AccessibleAWTMenuItem

Returns:: this object
See Also:: AccessibleAction

getAccessibleValue

public AccessibleValue getAccessibleValue()

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

Overrides:: getAccessibleValue in class MenuItem.AccessibleAWTMenuItem

Returns:: this object
See Also:: AccessibleValue

getAccessibleActionCount

public int getAccessibleActionCount()

Returns the number of Actions available in this object. If there is more than one, the first one is the "default" action.

Specified by:: getAccessibleActionCount in interface AccessibleAction
Overrides:: getAccessibleActionCount in class MenuItem.AccessibleAWTMenuItem

Returns:: the number of Actions in this object

getAccessibleActionDescription

public String getAccessibleActionDescription(int i)

Return a description of the specified action of the object.

Specified by:: getAccessibleActionDescription in interface AccessibleAction
Overrides:: getAccessibleActionDescription in class MenuItem.AccessibleAWTMenuItem

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

doAccessibleAction

public boolean doAccessibleAction(int i)

Perform the specified Action on the object

Specified by:: doAccessibleAction in interface AccessibleAction
Overrides:: doAccessibleAction in class MenuItem.AccessibleAWTMenuItem

Parameters:: i - zero-based index of actions
Returns:: true if the action was performed; otherwise false.
See Also:: AccessibleAction.getAccessibleActionCount()

getCurrentAccessibleValue

public Number getCurrentAccessibleValue()

Get the value of this object as a Number. If the value has not been set, the return value will be null.

Specified by:: getCurrentAccessibleValue in interface AccessibleValue
Overrides:: getCurrentAccessibleValue in class MenuItem.AccessibleAWTMenuItem

Returns:: value of the object
See Also:: setCurrentAccessibleValue(java.lang.Number)

setCurrentAccessibleValue

public boolean setCurrentAccessibleValue(Number n)

Set the value of this object as a Number.

Specified by:: setCurrentAccessibleValue in interface AccessibleValue
Overrides:: setCurrentAccessibleValue in class MenuItem.AccessibleAWTMenuItem

Returns:: true if the value was set; otherwise false
See Also:: getCurrentAccessibleValue()

getMinimumAccessibleValue

public Number getMinimumAccessibleValue()

Get the minimum value of this object as a Number.

Specified by:: getMinimumAccessibleValue in interface AccessibleValue
Overrides:: getMinimumAccessibleValue in class MenuItem.AccessibleAWTMenuItem

Returns:: Minimum value of the object; null if this object does not have a minimum value
See Also:: getMaximumAccessibleValue()

getMaximumAccessibleValue

public Number getMaximumAccessibleValue()

Get the maximum value of this object as a Number.

Specified by:: getMaximumAccessibleValue in interface AccessibleValue
Overrides:: getMaximumAccessibleValue in class MenuItem.AccessibleAWTMenuItem

Returns:: Maximum value of the object; null if this object does not have a maximum value
See Also:: getMinimumAccessibleValue()

getAccessibleRole

public AccessibleRole getAccessibleRole()

Get the role of this object.

Overrides:: getAccessibleRole in class MenuItem.AccessibleAWTMenuItem

Returns:: an instance of AccessibleRole describing the role of the object
See Also:: AccessibleRole