Changeset 831 for vanHelsing/trunk

Timestamp:

Mar 4, 2010, 5:43:09 PM (15 years ago)

Author:

tobias

Message:

added support for generic node types

Location:

vanHelsing/trunk/gui/src/de/dass_it/vanhelsing/gui

Files:

• TreeNavigation.java (modified) (1 diff)
• items (added)
• items/ItemType.java (added)
• items/UserObjectItem.java (added)
• items/UserObjectItemType.java (added)

vanHelsing/trunk/gui/src/de/dass_it/vanhelsing/gui/TreeNavigation.java

@@ +1 @@
+
 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 procedures to work with the tree structure.
+ * 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;
+                
+        }
 }