Container.AccessibleAWTContainer (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档

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Java™ Platform
Standard Ed. 6

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java.awt
Class Container.AccessibleAWTContainer

java.lang.Object
  javax.accessibility.AccessibleContext
      java.awt.Component.AccessibleAWTComponent
          java.awt.Container.AccessibleAWTContainer

All Implemented Interfaces:: Serializable, AccessibleComponent

Direct Known Subclasses:: Box.AccessibleBox, CellRendererPane.AccessibleCellRendererPane, JComponent.AccessibleJComponent, Panel.AccessibleAWTPanel, ScrollPane.AccessibleAWTScrollPane, Window.AccessibleAWTWindow

Enclosing class:: Container

protected class Container.AccessibleAWTContainer
extends Component.AccessibleAWTComponent
extends Component.AccessibleAWTComponent

Inner class of Container 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 container developers.

The class used to obtain the accessible role for this object, as well as implementing many of the methods in the AccessibleContainer interface.

Since:: 1.3
See Also:: Serialized Form

Nested Class Summary
`protected class`	`Container.AccessibleAWTContainer.AccessibleContainerHandler` Fire `PropertyChange` listener, if one is registered, when children are added or removed.

Nested classes/interfaces inherited from class java.awt.Component.AccessibleAWTComponent
`Component.AccessibleAWTComponent.AccessibleAWTComponentHandler, Component.AccessibleAWTComponent.AccessibleAWTFocusHandler`

Field Summary
`protected ContainerListener`	`accessibleContainerHandler`

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

Constructor Summary
`protected`	`Container.AccessibleAWTContainer()`

Method Summary
`void`	`addPropertyChangeListener(PropertyChangeListener listener)` Adds a PropertyChangeListener to the listener list.
`Accessible`	`getAccessibleAt(Point p)` Returns the `Accessible` child, if one exists, contained at the local coordinate `Point`.
`Accessible`	`getAccessibleChild(int i)` Returns the nth `Accessible` child of the object.
`int`	`getAccessibleChildrenCount()` Returns the number of accessible children in the object.

Methods inherited from class java.awt.Component.AccessibleAWTComponent
addFocusListener, contains, getAccessibleComponent, getAccessibleDescription, getAccessibleIndexInParent, getAccessibleName, getAccessibleParent, getAccessibleRole, getAccessibleStateSet, getBackground, getBounds, getCursor, getFont, getFontMetrics, getForeground, getLocale, getLocation, getLocationOnScreen, getSize, isEnabled, isFocusTraversable, isShowing, isVisible, removeFocusListener, removePropertyChangeListener, requestFocus, setBackground, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible

Methods inherited from class javax.accessibility.AccessibleContext
`firePropertyChange, getAccessibleAction, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleSelection, getAccessibleTable, getAccessibleText, getAccessibleValue, setAccessibleDescription, setAccessibleName, setAccessibleParent`

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

Field Detail

accessibleContainerHandler

protected ContainerListener accessibleContainerHandler

Constructor Detail

Container.AccessibleAWTContainer

protected Container.AccessibleAWTContainer()

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, then this method should return the number of children of this object.

Overrides:: getAccessibleChildrenCount in class Component.AccessibleAWTComponent

Returns:: the number of accessible children in the object

getAccessibleChild

public Accessible getAccessibleChild(int i)

Returns the nth Accessible child of the object.

Overrides:: getAccessibleChild in class Component.AccessibleAWTComponent

Parameters:: i - zero-based index of child
Returns:: the nth Accessible child of the object
See Also:: AccessibleContext.getAccessibleChildrenCount()

getAccessibleAt

public Accessible getAccessibleAt(Point p)

Returns the Accessible child, if one exists, contained at the local coordinate Point.

Specified by:: getAccessibleAt in interface AccessibleComponent
Overrides:: getAccessibleAt in class Component.AccessibleAWTComponent

Parameters:: p - the point defining the top-left corner of the Accessible, given in the coordinate space of the object's parent
Returns:: the Accessible, if it exists, at the specified location; else null

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener listener)

Adds a PropertyChangeListener to the listener list.

Overrides:: addPropertyChangeListener in class Component.AccessibleAWTComponent

Parameters:: listener - the PropertyChangeListener to be added
See Also:: AccessibleContext.ACCESSIBLE_NAME_PROPERTY, AccessibleContext.ACCESSIBLE_DESCRIPTION_PROPERTY, AccessibleContext.ACCESSIBLE_STATE_PROPERTY, AccessibleContext.ACCESSIBLE_VALUE_PROPERTY, AccessibleContext.ACCESSIBLE_SELECTION_PROPERTY, AccessibleContext.ACCESSIBLE_TEXT_PROPERTY, AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY