!7

sclass ComponentTree extends DynModule {
  new DynModuleRef mate;
  
  transient JTree tree;
  
  void start {
    ownTimer(doEvery(1000, r updateMe));
  }
  
  JComponent visualize() {
    final JComponent c = dm_getVisualization(mate!);
    if (c == null) null;
    
    ret swing(func -> JComponent {
      jSection(str(mate),
        wrap(jDynamicTree(new DefaultMutableTreeNode(c), func(DefaultMutableTreeNode node) -> bool {
          Component c = cast node.getUserObject();
          ret replaceTreeNodeChildren(node, getComponents(c));
        })))
    });
  }
  
  void update {
    if (setField(mate := DynModuleRef(dm_closestModule(this))))
      revisualize();
  }
}