JTree.AccessibleJTree
Class JTree.AccessibleJTree
- All Implemented Interfaces:
- Serializable, EventListener, AccessibleComponent, AccessibleExtendedComponent, AccessibleSelection, TreeExpansionListener, TreeModelListener, TreeSelectionListener
- Enclosing class:
- JTree
protected class JTree.AccessibleJTree extends JComponent.AccessibleJComponent implements AccessibleSelection, TreeSelectionListener, TreeModelListener, TreeExpansionListener
This class implements accessibility support for the JTree
class. It provides an implementation of the Java Accessibility API appropriate to tree 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™ has been added to the java.beans
package. Please see XMLEncoder
.
Nested Classes
Modifier and Type | Class and Description |
---|---|
protected class |
JTree.AccessibleJTree.AccessibleJTreeNode This class implements accessibility support for the |
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
Fields
Fields inherited from class javax.swing.JComponent.AccessibleJComponent
accessibleFocusHandler
Fields inherited from class java.awt.Container.AccessibleAWTContainer
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
Constructors
AccessibleJTree
public AccessibleJTree()
Methods
valueChanged
public void valueChanged(TreeSelectionEvent e)
Tree Selection Listener value change method. Used to fire the property change
- Specified by:
-
valueChanged
in interfaceTreeSelectionListener
- Parameters:
-
e
- ListSelectionEvent
fireVisibleDataPropertyChange
public void fireVisibleDataPropertyChange()
Fire a visible data property change notification. A 'visible' data property is one that represents something about the way the component appears on the display, where that appearance isn't bound to any other property. It notifies screen readers that the visual appearance of the component has changed, so they can notify the user.
treeNodesChanged
public void treeNodesChanged(TreeModelEvent e)
Tree Model Node change notification.
- Specified by:
-
treeNodesChanged
in interfaceTreeModelListener
- Parameters:
-
e
- a Tree Model event
treeNodesInserted
public void treeNodesInserted(TreeModelEvent e)
Tree Model Node change notification.
- Specified by:
-
treeNodesInserted
in interfaceTreeModelListener
- Parameters:
-
e
- a Tree node insertion event
treeNodesRemoved
public void treeNodesRemoved(TreeModelEvent e)
Tree Model Node change notification.
- Specified by:
-
treeNodesRemoved
in interfaceTreeModelListener
- Parameters:
-
e
- a Tree node(s) removal event
treeStructureChanged
public void treeStructureChanged(TreeModelEvent e)
Tree Model structure change change notification.
- Specified by:
-
treeStructureChanged
in interfaceTreeModelListener
- Parameters:
-
e
- a Tree Model event
treeCollapsed
public void treeCollapsed(TreeExpansionEvent e)
Tree Collapsed notification.
- Specified by:
-
treeCollapsed
in interfaceTreeExpansionListener
- Parameters:
-
e
- a TreeExpansionEvent
treeExpanded
public void treeExpanded(TreeExpansionEvent e)
Tree Model Expansion notification.
- Specified by:
-
treeExpanded
in interfaceTreeExpansionListener
- Parameters:
-
e
- a Tree node insertion event
getAccessibleRole
public AccessibleRole getAccessibleRole()
Get the role of this object.
- Overrides:
-
getAccessibleRole
in classJComponent.AccessibleJComponent
- Returns:
- an instance of AccessibleRole describing the role of the object
- See Also:
AccessibleRole
getAccessibleAt
public Accessible getAccessibleAt(Point p)
Returns the Accessible
child, if one exists, contained at the local coordinate Point
. Otherwise returns null
.
- Specified by:
-
getAccessibleAt
in interfaceAccessibleComponent
- Overrides:
-
getAccessibleAt
in classContainer.AccessibleAWTContainer
- Parameters:
-
p
- point in local coordinates of thisAccessible
- Returns:
- the
Accessible
, if it exists, at the specified location; elsenull
getAccessibleChildrenCount
public int getAccessibleChildrenCount()
Returns the number of top-level children nodes of this JTree. Each of these nodes may in turn have children nodes.
- Overrides:
-
getAccessibleChildrenCount
in classJComponent.AccessibleJComponent
- Returns:
- the number of accessible children nodes in the tree.
getAccessibleChild
public Accessible getAccessibleChild(int i)
Return the nth Accessible child of the object.
- Overrides:
-
getAccessibleChild
in classJComponent.AccessibleJComponent
- Parameters:
-
i
- zero-based index of child - Returns:
- the nth Accessible child of the object
- See Also:
AccessibleContext.getAccessibleChildrenCount()
getAccessibleIndexInParent
public int getAccessibleIndexInParent()
Get the index of this object in its accessible parent.
- Overrides:
-
getAccessibleIndexInParent
in classComponent.AccessibleAWTComponent
- Returns:
- the index of this object in its parent. Since a JTree top-level object does not have an accessible parent.
- See Also:
Component.AccessibleAWTComponent.getAccessibleParent()
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 classAccessibleContext
- Returns:
- this object
- See Also:
AccessibleSelection
getAccessibleSelectionCount
public int getAccessibleSelectionCount()
Returns the number of items currently selected. If no items are selected, the return value will be 0.
- Specified by:
-
getAccessibleSelectionCount
in interfaceAccessibleSelection
- Returns:
- the number of items currently selected.
getAccessibleSelection
public Accessible getAccessibleSelection(int i)
Returns an Accessible representing the specified selected item in the object. If there isn't a selection, or there are fewer items selected than the integer passed in, the return value will be null.
- Specified by:
-
getAccessibleSelection
in interfaceAccessibleSelection
- Parameters:
-
i
- the zero-based index of selected items - Returns:
- an Accessible containing the selected item
- See Also:
AccessibleSelection.getAccessibleSelectionCount()
isAccessibleChildSelected
public boolean isAccessibleChildSelected(int i)
Returns true if the current child of this object is selected.
- Specified by:
-
isAccessibleChildSelected
in interfaceAccessibleSelection
- 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 selected item in the object to the object's selection. If the object supports multiple selections, the specified item is added to any existing selection, otherwise it replaces any existing selection in the object. If the specified item is already selected, this method has no effect.
- Specified by:
-
addAccessibleSelection
in interfaceAccessibleSelection
- Parameters:
-
i
- the zero-based index of selectable items - See Also:
AccessibleContext.getAccessibleChild(int)
removeAccessibleSelection
public void removeAccessibleSelection(int i)
Removes the specified selected item in the object from the object's selection. If the specified item isn't currently selected, this method has no effect.
- Specified by:
-
removeAccessibleSelection
in interfaceAccessibleSelection
- Parameters:
-
i
- the zero-based index of selectable items - See Also:
AccessibleContext.getAccessibleChild(int)
clearAccessibleSelection
public void clearAccessibleSelection()
Clears the selection in the object, so that nothing in the object is selected.
- Specified by:
-
clearAccessibleSelection
in interfaceAccessibleSelection
selectAllAccessibleSelection
public void selectAllAccessibleSelection()
Causes every selected item in the object to be selected if the object supports multiple selections.
- Specified by:
-
selectAllAccessibleSelection
in interfaceAccessibleSelection
© 1993–2017, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.