source: vanHelsing/trunk/gui/src/de/dass_it/vanhelsing/gui/TreeNavigation.java@ 831

package de.dass_it.vanhelsing.gui;

import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.DefaultMutableTreeNode;
import de.dass_it.vanhelsing.gui.items.*;

/*
 * Helper class to encapsulate all procedure
 * s to work with the tree structure.
 */
public class TreeNavigation extends BeanUtil {
        private DefaultTreeModel tree;
        
        public DefaultTreeModel createTree(DefaultMutableTreeNode root, String[] nodes){
                
                tree = new DefaultTreeModel(root);
                for(int i = 0; i< nodes.length; i++){
                        addNode(root, nodes[i]);
                }
                
                
                return tree;
        }
        
        public DefaultMutableTreeNode addNode(DefaultMutableTreeNode parent, String type){
                DefaultMutableTreeNode node = new DefaultMutableTreeNode();
                node.setParent(parent);
                UserObjectItemType userObject = new UserObjectItemType(node);
                type = "de.dass_it.vanhelsing.gui.items." + type + "Item";
                try {
                Class myClass = Class.forName(type);
                UserObjectItem item = (UserObjectItem) myClass.newInstance();
                userObject.setUserObjectItem(item);

                } catch (ClassNotFoundException e){
                        System.err.println("Itemclass "+ type +" must be in the classpath");
                } catch (InstantiationException e){
                        System.err.println("Class"+type+"must be a concrete class, not an interface or an abstract class");
                } catch (IllegalAccessException e){
                        System.err.println("Class" + type + " lacks a no-argument constructor");
                }
                return node;
                
        }
}