- 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
.
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Nested Class Summary
Modifier and TypeClassDescriptionprotected class
This class implements accessibility support for theJTree
child.Nested classes/interfaces declared in class javax.swing.JComponent.AccessibleJComponent
JComponent.AccessibleJComponent.AccessibleContainerHandler, JComponent.AccessibleJComponent.AccessibleFocusHandler
Nested classes/interfaces declared in class java.awt.Component.AccessibleAWTComponent
Component.AccessibleAWTComponent.AccessibleAWTComponentHandler, Component.AccessibleAWTComponent.AccessibleAWTFocusHandler
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Field Summary
Fields declared in class javax.swing.JComponent.AccessibleJComponent
accessibleFocusHandler
Fields declared in class java.awt.Container.AccessibleAWTContainer
accessibleContainerHandler
Fields declared in class java.awt.Component.AccessibleAWTComponent
accessibleAWTComponentHandler, accessibleAWTFocusHandler
Fields declared in 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
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionvoid
addAccessibleSelection
(int i) Adds the specified selected item in the object to the object's selection.void
Clears the selection in the object, so that nothing in the object is selected.void
Fire a visible data property change notification.Returns theAccessible
child, if one exists, contained at the local coordinatePoint
.getAccessibleChild
(int i) Return the nth Accessible child of the object.int
Returns the number of top-level children nodes of this JTree.int
Get the index of this object in its accessible parent.Get the role of this object.Get the AccessibleSelection associated with this object.getAccessibleSelection
(int i) Returns an Accessible representing the specified selected item in the object.int
Returns the number of items currently selected.boolean
isAccessibleChildSelected
(int i) Returns true if the current child of this object is selected.void
removeAccessibleSelection
(int i) Removes the specified selected item in the object from the object's selection.void
Causes every selected item in the object to be selected if the object supports multiple selections.void
Tree Collapsed notification.void
Tree Model Expansion notification.void
Tree Model Node change notification.void
Tree Model Node change notification.void
Tree Model Node change notification.void
Tree Model structure change change notification.void
Tree Selection Listener value change method.Methods declared in class javax.swing.JComponent.AccessibleJComponent
addPropertyChangeListener, getAccessibleDescription, getAccessibleKeyBinding, getAccessibleName, getAccessibleStateSet, getBorderTitle, getTitledBorderText, getToolTipText, removePropertyChangeListener
Methods declared in class java.awt.Component.AccessibleAWTComponent
addFocusListener, contains, getAccessibleComponent, 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 declared in class javax.accessibility.AccessibleContext
firePropertyChange, getAccessibleAction, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleTable, getAccessibleText, getAccessibleValue, setAccessibleDescription, setAccessibleName, setAccessibleParent
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods declared in interface javax.accessibility.AccessibleComponent
addFocusListener, contains, getBackground, getBounds, getCursor, getFont, getFontMetrics, getForeground, getLocation, getLocationOnScreen, getSize, isEnabled, isFocusTraversable, isShowing, isVisible, removeFocusListener, requestFocus, setBackground, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible
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Constructor Details
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AccessibleJTree
public AccessibleJTree()ConstructsAccessibleJTree
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Method Details
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valueChanged
Tree Selection Listener value change method. Used to fire the property change- Specified by:
valueChanged
in interfaceTreeSelectionListener
- Parameters:
e
- ListSelectionEvent
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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
Tree Model Node change notification.- Specified by:
treeNodesChanged
in interfaceTreeModelListener
- Parameters:
e
- a Tree Model event
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treeNodesInserted
Tree Model Node change notification.- Specified by:
treeNodesInserted
in interfaceTreeModelListener
- Parameters:
e
- a Tree node insertion event
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treeNodesRemoved
Tree Model Node change notification.- Specified by:
treeNodesRemoved
in interfaceTreeModelListener
- Parameters:
e
- a Tree node(s) removal event
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treeStructureChanged
Tree Model structure change change notification.- Specified by:
treeStructureChanged
in interfaceTreeModelListener
- Parameters:
e
- a Tree Model event
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treeCollapsed
Tree Collapsed notification.- Specified by:
treeCollapsed
in interfaceTreeExpansionListener
- Parameters:
e
- a TreeExpansionEvent
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treeExpanded
Tree Model Expansion notification.- Specified by:
treeExpanded
in interfaceTreeExpansionListener
- Parameters:
e
- a Tree node insertion event
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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:
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getAccessibleAt
Returns theAccessible
child, if one exists, contained at the local coordinatePoint
. Otherwise returnsnull
.- 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
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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.
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getAccessibleChild
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:
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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:
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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:
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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.
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getAccessibleSelection
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:
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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; elsefalse
- See Also:
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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:
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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:
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clearAccessibleSelection
public void clearAccessibleSelection()Clears the selection in the object, so that nothing in the object is selected.- Specified by:
clearAccessibleSelection
in interfaceAccessibleSelection
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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
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