AssignmentDetailController.java 文件源码

/**
 * Method to handle the change in selection of the {@link uk.dangrew.jtt.javafx.tree.structure.Tree}.
 * @param change the {@link javafx.collections.ListChangeListener.Change} made.
 */
private void handleSelection( Change< ? extends TreeItem< UserAssignmentsTreeItem > > change ) {
   ObservableList< TreeItem< UserAssignmentsTreeItem > > selection = tree.getSelectionModel().getSelectedItems();
   if ( selection.size() != 1 ) {
      area.setAssignment( null );
      return;
   }

   if ( selection.get( 0 ).getValue() == null ) {
      area.setAssignment( null );
      return;
   }
   area.setAssignment( selection.get( 0 ).getValue().getAssignment() );
}