Package org.eclipse.swt.events

Interface TreeListener

All Superinterfaces:
EventListener, SWTEventListener
All Known Implementing Classes:
TreeAdapter
public interface TreeListener extends SWTEventListener
Classes which implement this interface provide methods that deal with the expanding and collapsing of tree branches.

After creating an instance of a class that implements this interface it can be added to a tree control using the addTreeListener method and removed using the removeTreeListener method. When a branch of the tree is expanded or collapsed, the appropriate method will be invoked.

See Also:

  • Method Details

    • treeCollapsed

      void treeCollapsed(TreeEvent e)
      Sent when a tree branch is collapsed.
      Parameters:
      e - an event containing information about the tree operation

    • treeExpanded

      void treeExpanded(TreeEvent e)
      Sent when a tree branch is expanded.
      Parameters:
      e - an event containing information about the tree operation

    • treeCollapsedAdapter

      static TreeListener treeCollapsedAdapter(Consumer<TreeEvent> c)
      Static helper method to create a TreeListener for the treeCollapsed(TreeEvent e)) method, given a lambda expression or a method reference.
      Parameters:
      c - the consumer of the event
      Returns:
      TreeListener
      Since:
      3.107

    • treeExpandedAdapter

      static TreeListener treeExpandedAdapter(Consumer<TreeEvent> c)
      Static helper method to create a TreeListener for the treeExpanded(TreeEvent e)) method, given a lambda expression or a method reference.
      Parameters:
      c - the consumer of the event
      Returns:
      TreeListener
      Since:
      3.107