public Controller(Action toggleAction) {
   itemList.setModel(new DefaultComboBoxModel());
   itemList.setPrototypeDisplayValue("------------------------");
   enableEditor(false);
   this.toggleAction = toggleAction;
 }
  @Override
  public void adoptElement(SceneElement elem) {
    if (!(elem instanceof NenyaImageSceneElement
        || elem instanceof NenyaTileSceneElement
        || elem instanceof NenyaComponentSceneElement)) {
      enableEditor(false);
      return;
    }

    DefaultComboBoxModel dcm = (DefaultComboBoxModel) itemList.getModel();

    // Important: Work on a copy, not on the original. Otherwise we mess up the undomanager
    sceneElement = elem.copy();

    if ((sceneElement instanceof NenyaImageSceneElement) && !locked) {
      dcm.removeAllElements();
      String[] tmp = ((NenyaImageSceneElement) sceneElement).getPath();
      dcm.addElement(tmp[tmp.length - 1]);
    }
    if ((sceneElement instanceof NenyaTileSceneElement) && !locked) {
      dcm.removeAllElements();
      dcm.addElement(((NenyaTileSceneElement) sceneElement).getTileName());
    }
    if ((sceneElement instanceof NenyaComponentSceneElement) && !locked) {
      dcm.removeAllElements();
      NenyaComponentItem[] ni = ((NenyaComponentSceneElement) sceneElement).getComponents();
      for (NenyaComponentItem element : ni) {
        dcm.addElement(element);
      }
    }

    try {
      ClassedItem[] cols = null;
      if (elem instanceof NenyaTileSceneElement)
        cols = ((NenyaTileSceneElement) elem).getColorList();
      if (elem instanceof NenyaImageSceneElement)
        cols = ((NenyaImageSceneElement) elem).getColorList();
      if (elem instanceof NenyaComponentSceneElement) {
        NenyaComponentItem nci = (NenyaComponentItem) dcm.getSelectedItem();
        cols = nci.getColorList();
      }
      Vector<TreePath> collect = new Vector<TreePath>();
      TreeNode root = (TreeNode) colors.getModel().getRoot();
      for (ClassedItem col : cols) {
        String[] tmp = {root.toString(), col.getClassName(), col.getItemName()};
        collect.add(TreeUtil.findPath(root, tmp));
      }
      TreePath[] path = collect.toArray(new TreePath[0]);
      colors.getSelectionModel().setSelectionPaths(path);
    } catch (Exception e) {
      // Either the tree is filtered away or the selected item is not colorized.
    }

    enableEditor(true);
    itemList.setEnabled(elem instanceof NenyaComponentSceneElement);
  }
  @Override
  public void valueChanged(TreeSelectionEvent e) {
    if (e.getSource() == colors && !locked) {
      TreeSelectionModel tsm = colors.getSelectionModel();
      TreePath tp[] = tsm.getSelectionPaths();
      if (tp == null) return;
      Vector<ClassedItem> tmp = new Vector<ClassedItem>();
      for (TreePath element : tp) {
        try {
          Object[] path = element.getPath();
          ClassedItem ci = new ClassedItem(path[1].toString(), path[2].toString());
          tmp.add(ci);
        } catch (Exception exp) {
          // User did not select a leafnode
        }
      }

      if (sceneElement instanceof NenyaImageSceneElement) {
        ((NenyaImageSceneElement) sceneElement).setColorList(tmp.toArray(new ClassedItem[0]));
      }
      if (sceneElement instanceof NenyaTileSceneElement) {
        ((NenyaTileSceneElement) sceneElement).setColorList(tmp.toArray(new ClassedItem[0]));
      }
      if (sceneElement instanceof NenyaComponentSceneElement) {
        ((NenyaComponentSceneElement) sceneElement)
            .getComponents()[itemList.getSelectedIndex()].setColorList(
                tmp.toArray(new ClassedItem[0]));
      }

      submitElement(sceneElement, null);
    } else {
      super.valueChanged(e);
    }
  }
 @Override
 public void setSystemManager(SystemManager sm) {
   super.setSystemManager(sm);
   sm.getIoService().addIOServiceListener(this);
   filter.addCaretListener(lumberjack);
   filter.setAction(lumberjackAction);
   colors.addTreeSelectionListener(this);
   itemList.addActionListener(this);
   sceneElement = null;
 }
 private void enableEditor(boolean enable) {
   colors.setEnabled(enable);
   lumberjackAction.setEnabled(enable);
   itemList.setEnabled(enable);
 }