Module java.desktop
Package javax.swing

Class JTree.AccessibleJTree

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

  • Constructor Details

    • AccessibleJTree

      public AccessibleJTree()
      Constructs AccessibleJTree

  • Method Details

    • valueChanged

      public void valueChanged​(TreeSelectionEvent e)
      Tree Selection Listener value change method. Used to fire the property change
      Specified by:
      valueChanged in interface TreeSelectionListener
      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 interface TreeModelListener
      Parameters:
      e - a Tree Model event

    • treeNodesInserted

      public void treeNodesInserted​(TreeModelEvent e)
      Tree Model Node change notification.
      Specified by:
      treeNodesInserted in interface TreeModelListener
      Parameters:
      e - a Tree node insertion event

    • treeNodesRemoved

      public void treeNodesRemoved​(TreeModelEvent e)
      Tree Model Node change notification.
      Specified by:
      treeNodesRemoved in interface TreeModelListener
      Parameters:
      e - a Tree node(s) removal event

    • treeStructureChanged

      public void treeStructureChanged​(TreeModelEvent e)
      Tree Model structure change change notification.
      Specified by:
      treeStructureChanged in interface TreeModelListener
      Parameters:
      e - a Tree Model event

    • treeCollapsed

      public void treeCollapsed​(TreeExpansionEvent e)
      Tree Collapsed notification.
      Specified by:
      treeCollapsed in interface TreeExpansionListener
      Parameters:
      e - a TreeExpansionEvent

    • treeExpanded

      public void treeExpanded​(TreeExpansionEvent e)
      Tree Model Expansion notification.
      Specified by:
      treeExpanded in interface TreeExpansionListener
      Parameters:
      e - a Tree node insertion event

    • getAccessibleRole

      public AccessibleRole getAccessibleRole()
      Get the role of this object.
      Overrides:
      getAccessibleRole in class JComponent.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 interface AccessibleComponent
      Overrides:
      getAccessibleAt in class Container.AccessibleAWTContainer
      Parameters:
      p - point in local coordinates of this Accessible
      Returns:
      the Accessible, if it exists, at the specified location; else null

    • 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 class JComponent.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 class JComponent.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 class Component.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 class AccessibleContext
      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 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