package NET.worlds.console;

import java.awt.List;
import java.util.Vector;

abstract class StatMan {
   protected Vector<Object> _children;
   protected List _grabbedList;
   protected Tree _tree;

   void createList() {
      this.updateList();
   }

   abstract void updateList();

   void releaseList(boolean terminalCallback) {
      this._grabbedList = null;
   }

   void grabList(List list) {
      assert this._grabbedList == null;

      this._grabbedList = list;
      this._grabbedList.removeAll();
      this.createList();
   }

   void setTree(Tree tree) {
      this._tree = tree;
      if (this._children != null) {
         for (int i = this._children.size() - 1; i >= 0; i--) {
            StatMan child = (StatMan)this._children.elementAt(i);
            child.setTree(this._tree);
         }
      }
   }

   Vector<Object> getChildren() {
      return this._children;
   }

   void addChild(StatMan child) {
      assert child != null;

      if (this._children == null) {
         this._children = new Vector<Object>();
      }

      assert this._children.indexOf(child) == -1;

      this._children.addElement(child);
      if (this._tree != null) {
         child.setTree(this._tree);
         this._tree.update();
      }
   }
}