MenuSelectionManager (Java SE 15 & JDK 15) (original) (raw)

public class MenuSelectionManager extends Object

A MenuSelectionManager owns the selection in menu hierarchy.

Since:

1.2

• Field Summary

Fields

• Constructor Summary

Constructors

• Method Summary

Methods declared in class java.lang.Object

[clone](../../../java.base/java/lang/Object.html#clone%28%29), [equals](../../../java.base/java/lang/Object.html#equals%28java.lang.Object%29), [finalize](../../../java.base/java/lang/Object.html#finalize%28%29), [getClass](../../../java.base/java/lang/Object.html#getClass%28%29), [hashCode](../../../java.base/java/lang/Object.html#hashCode%28%29), [notify](../../../java.base/java/lang/Object.html#notify%28%29), [notifyAll](../../../java.base/java/lang/Object.html#notifyAll%28%29), [toString](../../../java.base/java/lang/Object.html#toString%28%29), [wait](../../../java.base/java/lang/Object.html#wait%28%29), [wait](../../../java.base/java/lang/Object.html#wait%28long%29), [wait](../../../java.base/java/lang/Object.html#wait%28long,int%29)

• Field Details

  • changeEvent

  Only one ChangeEvent is needed per button model instance since the event's only state is the source property. The source of events generated is always "this".

  • listenerList

  The collection of registered listeners

• Constructor Details

  • MenuSelectionManager

  public MenuSelectionManager()

• Method Details

  • defaultManager

  Returns the default menu selection manager.
  Returns:
  a MenuSelectionManager object

  • getSelectedPath

  Returns the path to the currently selected menu item
  Returns:
  an array of MenuElement objects representing the selected path

  • clearSelectedPath

  public void clearSelectedPath()
  Tell the menu selection to close and unselect all the menu components. Call this method when a choice has been made

  • addChangeListener

  Adds a ChangeListener to the button.
  Parameters:
  l - the listener to add

  • removeChangeListener

  Removes a ChangeListener from the button.
  Parameters:
  l - the listener to remove

  • getChangeListeners

  Returns an array of all the ChangeListeners added to this MenuSelectionManager with addChangeListener().
  Returns:
  all of the ChangeListeners added or an empty array if no listeners have been added
  Since:
  1.4

  • fireStateChanged

  protected void fireStateChanged()
  Notifies all listeners that have registered interest for notification on this event type. The event instance is created lazily.
  See Also:
  EventListenerList

  • processMouseEvent

  public void processMouseEvent​(MouseEvent event)
  When a MenuElement receives an event from a MouseListener, it should never process the event directly. Instead all MenuElements should call this method with the event.
  Parameters:
  event - a MouseEvent object

  • componentForPoint

  Returns the component in the currently selected path which contains sourcePoint.
  Parameters:
  source - The component in whose coordinate space sourcePoint is given
  sourcePoint - The point which is being tested
  Returns:
  The component in the currently selected path which contains sourcePoint (relative to the source component's coordinate space. If sourcePoint is not inside a component on the currently selected path, null is returned.

  • processKeyEvent

  public void processKeyEvent​(KeyEvent e)
  When a MenuElement receives an event from a KeyListener, it should never process the event directly. Instead all MenuElements should call this method with the event.
  Parameters:
  e - a KeyEvent object