NavigationView.java 文件源码

/**
 * @param e
 */
protected void itemSelected(MouseEvent e) {
 if (e.getClickCount() == 2) {
        DefaultMutableTreeNode node = (DefaultMutableTreeNode) tree.getLastSelectedPathComponent();

     if (node != null) {
         if (node.isLeaf())
            if (node.getParent() != null) {
            if (node.getParent().toString().equals("graphs")) {
                  for (int i=0 ; i<observers.size() ; i++)
                      (observers.get(i)).graphSelected(node.toString());
              }
              else if (node.getParent().toString().equals("animations")) {
                  for (int i=0 ; i<observers.size() ; i++)
                      (observers.get(i)).animationSelected(node.toString());
              }
              else if (node.getParent().toString().equals("algorithms")) {
                  for (int i=0 ; i<observers.size() ; i++)
                      (observers.get(i)).algorithmSelected(node.toString());
              }
          }
  }
    }
}