Module java.desktop

Package javax.swing

Class JTree.AccessibleJTree.AccessibleJTreeNode

java.lang.Object

javax.accessibility.AccessibleContext

javax.swing.JTree.AccessibleJTree.AccessibleJTreeNode

All Implemented Interfaces:

Accessible, AccessibleAction, AccessibleComponent, AccessibleSelection

Enclosing class:

JTree.AccessibleJTree

protected class JTree.AccessibleJTree.AccessibleJTreeNode
extends AccessibleContext
implements Accessible, AccessibleComponent, AccessibleSelection, AccessibleAction

This class implements accessibility support for the JTree child. It provides an implementation of the Java Accessibility API appropriate to tree nodes.

Field Summary

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

Fields declared in interface javax.accessibility.AccessibleAction

CLICK, DECREMENT, INCREMENT, TOGGLE_EXPAND, TOGGLE_POPUP

Constructor Summary

Constructors

Constructor	Description
AccessibleJTreeNode(JTree t, TreePath p, Accessible ap)	Constructs an AccessibleJTreeNode

Method Summary

Modifier and Type	Method	Description
void	addAccessibleSelection(int i)	Adds the specified selected item in the object to the object's selection.
void	addPropertyChangeListener(PropertyChangeListener l)	Add a PropertyChangeListener to the listener list.
void	clearAccessibleSelection()	Clears the selection in the object, so that nothing in the object is selected.
boolean	doAccessibleAction(int i)	Perform the specified Action on the tree node.
AccessibleAction	getAccessibleAction()	Get the AccessibleAction associated with this object.
int	getAccessibleActionCount()	Returns the number of accessible actions available in this tree node.
String	getAccessibleActionDescription(int i)	Return a description of the specified action of the tree node.
Accessible	getAccessibleAt(Point p)	Returns the Accessible child, if one exists, contained at the local coordinate Point.
Accessible	getAccessibleChild(int i)	Return the specified Accessible child of the object.
int	getAccessibleChildrenCount()	Returns the number of accessible children in the object.
AccessibleComponent	getAccessibleComponent()	Get the AccessibleComponent associated with this object.
AccessibleContext	getAccessibleContext()	Get the AccessibleContext associated with this tree node.
String	getAccessibleDescription()	Get the accessible description of this object.
int	getAccessibleIndexInParent()	Get the index of this object in its accessible parent.
String	getAccessibleName()	Get the accessible name of this object.
Accessible	getAccessibleParent()	Get the Accessible parent of this object.
AccessibleRole	getAccessibleRole()	Get the role of this object.
AccessibleSelection	getAccessibleSelection()	Get the AccessibleSelection associated with this object if one exists.
Accessible	getAccessibleSelection(int i)	Returns an Accessible representing the specified selected item in the object.
int	getAccessibleSelectionCount()	Returns the number of items currently selected.
AccessibleStateSet	getAccessibleStateSet()	Get the state set of this object.
AccessibleText	getAccessibleText()	Get the AccessibleText associated with this object if one exists.
AccessibleValue	getAccessibleValue()	Get the AccessibleValue associated with this object if one exists.
Color	getBackground()	Get the background color of this object.
Color	getForeground()	Get the foreground color of this object.
Locale	getLocale()	Gets the locale of the component.
protected Point	getLocationInJTree()	Returns the relative location of the node
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	removePropertyChangeListener(PropertyChangeListener l)	Remove a PropertyChangeListener from the listener list.
void	selectAllAccessibleSelection()	Causes every selected item in the object to be selected if the object supports multiple selections.
void	setAccessibleDescription(String s)	Set the accessible description of this object.
void	setAccessibleName(String s)	Set the localized accessible name of this object.
void	setBackground(Color c)	Set the background color of this object.

Methods declared in class javax.accessibility.AccessibleContext

firePropertyChange, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleTable, 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, getBounds, getCursor, getFont, getFontMetrics, getLocation, getLocationOnScreen, getSize, isEnabled, isFocusTraversable, isShowing, isVisible, removeFocusListener, requestFocus, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible

Constructor Details

AccessibleJTreeNode

public AccessibleJTreeNode(JTree t, TreePath p, Accessible ap)

Constructs an AccessibleJTreeNode

Parameters:

t - an instance of JTree

p - an instance of TreePath

ap - an instance of Accessible

Since:

1.4

Method Details

getAccessibleContext

public AccessibleContext getAccessibleContext()

Get the AccessibleContext associated with this tree node. In the implementation of the Java Accessibility API for this class, return this object, which is its own AccessibleContext.

Specified by:

getAccessibleContext in interface Accessible

Returns:

this object

getAccessibleName

public String getAccessibleName()

Get the accessible name of this object.

Overrides:

getAccessibleName in class AccessibleContext

Returns:

the localized name of the object; null if this object does not have a name

See Also:

AccessibleContext.setAccessibleName(java.lang.String)

setAccessibleName

public void setAccessibleName(String s)

Set the localized accessible name of this object.

Overrides:

setAccessibleName in class AccessibleContext

Parameters:

s - the new localized name of the object.

See Also:

AccessibleContext.getAccessibleName(), AccessibleContext.addPropertyChangeListener(java.beans.PropertyChangeListener)

getAccessibleDescription

public String getAccessibleDescription()

Get the accessible description of this object.

Overrides:

getAccessibleDescription in class AccessibleContext

Returns:

the localized description of the object; null if this object does not have a description

See Also:

AccessibleContext.setAccessibleDescription(java.lang.String)

setAccessibleDescription

public void setAccessibleDescription(String s)

Set the accessible description of this object.

Overrides:

setAccessibleDescription in class AccessibleContext

Parameters:

s - the new localized description of the object

See Also:

AccessibleContext.setAccessibleName(java.lang.String), AccessibleContext.addPropertyChangeListener(java.beans.PropertyChangeListener)

getAccessibleRole

public AccessibleRole getAccessibleRole()

Get the role of this object.

Specified by:

getAccessibleRole in class AccessibleContext

Returns:

an instance of AccessibleRole describing the role of the object

See Also:

AccessibleRole

getAccessibleStateSet

public AccessibleStateSet getAccessibleStateSet()

Get the state set of this object.

Specified by:

getAccessibleStateSet in class AccessibleContext

Returns:

an instance of AccessibleStateSet containing the current state set of the object

See Also:

AccessibleState

getAccessibleParent

public Accessible getAccessibleParent()

Get the Accessible parent of this object.

Overrides:

getAccessibleParent in class AccessibleContext

Returns:

the Accessible parent of this object; null if this object does not have an Accessible parent

getAccessibleIndexInParent

public int getAccessibleIndexInParent()

Get the index of this object in its accessible parent.

Specified by:

getAccessibleIndexInParent in class AccessibleContext

Returns:

the index of this object in its parent; -1 if this object does not have an accessible parent.

See Also:

getAccessibleParent()

getAccessibleChildrenCount

public int getAccessibleChildrenCount()

Returns the number of accessible children in the object.

Specified by:

getAccessibleChildrenCount in class AccessibleContext

Returns:

the number of accessible children in the object.

getAccessibleChild

public Accessible getAccessibleChild(int i)

Return the specified Accessible child of the object.

Specified by:

getAccessibleChild in class AccessibleContext

Parameters:

i - zero-based index of child

Returns:

the Accessible child of the object

See Also:

AccessibleContext.getAccessibleChildrenCount()

getLocale

public Locale getLocale()

Gets the locale of the component. If the component does not have a locale, then the locale of its parent is returned.

Specified by:

getLocale in class AccessibleContext

Returns:

This component's locale. If this component does not have a locale, the locale of its parent is returned.

Throws:

IllegalComponentStateException - If the Component does not have its own locale and has not yet been added to a containment hierarchy such that the locale can be determined from the containing parent.

See Also:

Component.setLocale(java.util.Locale)

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener l)

Add a PropertyChangeListener to the listener list. The listener is registered for all properties.

Overrides:

addPropertyChangeListener in class AccessibleContext

Parameters:

l - 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

removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener l)

Remove a PropertyChangeListener from the listener list. This removes a PropertyChangeListener that was registered for all properties.

Overrides:

removePropertyChangeListener in class AccessibleContext

Parameters:

l - The PropertyChangeListener to be removed

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

getAccessibleComponent

public AccessibleComponent getAccessibleComponent()

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

Overrides:

getAccessibleComponent in class AccessibleContext

Returns:

this object

See Also:

AccessibleComponent

getAccessibleSelection

public AccessibleSelection getAccessibleSelection()

Get the AccessibleSelection associated with this object if one exists. Otherwise return null.

Overrides:

getAccessibleSelection in class AccessibleContext

Returns:

the AccessibleSelection, or null

See Also:

AccessibleSelection

getAccessibleText

public AccessibleText getAccessibleText()

Get the AccessibleText associated with this object if one exists. Otherwise return null.

Overrides:

getAccessibleText in class AccessibleContext

Returns:

the AccessibleText, or null

See Also:

AccessibleText

getAccessibleValue

public AccessibleValue getAccessibleValue()

Get the AccessibleValue associated with this object if one exists. Otherwise return null.

Overrides:

getAccessibleValue in class AccessibleContext

Returns:

the AccessibleValue, or null

See Also:

AccessibleValue

getBackground

public Color getBackground()

Get the background color of this object.

Specified by:

getBackground in interface AccessibleComponent

Returns:

the background color, if supported, of the object; otherwise, null

See Also:

AccessibleComponent.setBackground(java.awt.Color)

setBackground

public void setBackground(Color c)

Set the background color of this object.

Specified by:

setBackground in interface AccessibleComponent

Parameters:

c - the new Color for the background

See Also:

AccessibleComponent.setBackground(java.awt.Color)

getForeground

public Color getForeground()

Get the foreground color of this object.

Specified by:

getForeground in interface AccessibleComponent

Returns:

the foreground color, if supported, of the object; otherwise, null

See Also:

AccessibleComponent.setForeground(java.awt.Color)

getLocationInJTree

protected Point getLocationInJTree()

Returns the relative location of the node

Returns:

the relative location of the node

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 interface AccessibleComponent

Parameters:

p - point in local coordinates of this Accessible

Returns:

the Accessible, if it exists, at the specified location; else null

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 interface AccessibleSelection

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 interface AccessibleSelection

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 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)

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 interface AccessibleSelection

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 interface AccessibleSelection

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 interface AccessibleSelection

selectAllAccessibleSelection

public void selectAllAccessibleSelection()

Causes every selected item in the object to be selected if the object supports multiple selections.

Specified by:

selectAllAccessibleSelection in interface AccessibleSelection

getAccessibleActionCount

public int getAccessibleActionCount()

Returns the number of accessible actions available in this tree node. If this node is not a leaf, there is at least one action (toggle expand), in addition to any available on the object behind the TreeCellRenderer.

Specified by:

getAccessibleActionCount in interface AccessibleAction

Returns:

the number of Actions in this object

getAccessibleActionDescription

public String getAccessibleActionDescription(int i)

Return a description of the specified action of the tree node. If this node is not a leaf, there is at least one action description (toggle expand), in addition to any available on the object behind the TreeCellRenderer.

Specified by:

getAccessibleActionDescription in interface AccessibleAction

Parameters:

i - zero-based index of the actions

Returns:

a description of the action

See Also:

AccessibleAction.getAccessibleActionCount()

doAccessibleAction

public boolean doAccessibleAction(int i)

Perform the specified Action on the tree node. If this node is not a leaf, there is at least one action which can be done (toggle expand), in addition to any available on the object behind the TreeCellRenderer.

Specified by:

doAccessibleAction in interface AccessibleAction

Parameters:

i - zero-based index of actions

Returns:

true if the action was performed; else false.

See Also:

AccessibleAction.getAccessibleActionCount()