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+/* *************************************************************************
+ 
+ IT Mill Toolkit 
+
+ Development of Browser User Interfaces Made Easy
+
+ Copyright (C) 2000-2006 IT Mill Ltd
+ 
+ *************************************************************************
+
+ This product is distributed under commercial license that can be found
+ from the product package on license.pdf. Use of this product might 
+ require purchasing a commercial license from IT Mill Ltd. For guidelines 
+ on usage, see licensing-guidelines.html
+
+ *************************************************************************
+ 
+ For more information, contact:
+ 
+ IT Mill Ltd                           phone: +358 2 4802 7180
+ Ruukinkatu 2-4                        fax:   +358 2 4802 7181
+ 20540, Turku                          email:  info@itmill.com
+ Finland                               company www: www.itmill.com
+ 
+ Primary source for information and releases: www.itmill.com
+
+ ********************************************************************** */
+
+package com.itmill.toolkit.tests.featurebrowser;
+
+import java.util.Iterator;
+
+import com.itmill.toolkit.event.Action;
+import com.itmill.toolkit.ui.*;
+
+public class FeatureTree extends Feature implements Action.Handler {
+
+	private static final String[] firstnames = new String[] { "John", "Mary",
+			"Joe", "Sarah", "Jeff", "Jane", "Peter", "Marc", "Josie", "Linus" };
+
+	private static final String[] lastnames = new String[] { "Torvalds",
+			"Smith", "Jones", "Beck", "Sheridan", "Picard", "Hill", "Fielding",
+			"Einstein" };
+
+	private Tree t;
+
+	private boolean actionsActive = false;
+
+	private Button actionHandlerSwitch = new Button("Activate actions", this,
+			"toggleActions");
+
+	public FeatureTree() {
+		super();
+	}
+
+	public void toggleActions() {
+		if (actionsActive) {
+			t.removeActionHandler(this);
+			actionsActive = false;
+			actionHandlerSwitch.setCaption("Activate Actions");
+		} else {
+			t.addActionHandler(this);
+			actionsActive = true;
+			actionHandlerSwitch.setCaption("Deactivate Actions");
+		}
+	}
+
+	public void expandAll() {
+		for (Iterator i = t.rootItemIds().iterator(); i.hasNext();) {
+			t.expandItemsRecursively(i.next());
+		}
+	}
+
+	public void collapseAll() {
+		for (Iterator i = t.rootItemIds().iterator(); i.hasNext();) {
+			t.collapseItemsRecursively(i.next());
+		}
+	}
+
+	protected Component getDemoComponent() {
+
+		OrderedLayout l = new OrderedLayout();
+
+		String[] names = new String[100];
+		for (int i = 0; i < names.length; i++)
+			names[i] = firstnames[(int) (Math.random() * (firstnames.length - 1))]
+					+ " "
+					+ lastnames[(int) (Math.random() * (lastnames.length - 1))];
+
+		// Create tree
+		t = new Tree("Organization Structure");
+		for (int i = 0; i < 100; i++) {
+			t.addItem(names[i]);
+			String parent = names[(int) (Math.random() * (names.length - 1))];
+			if (t.containsId(parent))
+				t.setParent(names[i], parent);
+		}
+
+		// Forbid childless people to have children (makes them leaves)
+		for (int i = 0; i < 100; i++)
+			if (!t.hasChildren(names[i]))
+				t.setChildrenAllowed(names[i], false);
+
+		l.addComponent(t);
+
+		// Actions
+		l.addComponent(this.actionHandlerSwitch);
+
+		// Expand and Collapse buttons
+		l.addComponent(new Button("Expand All", this, "expandAll"));
+		l.addComponent(new Button("Collapse All", this, "collapseAll"));
+
+		// Properties
+		propertyPanel = new PropertyPanel(t);
+		Form ap = propertyPanel
+				.createBeanPropertySet(new String[] { "selectable" });
+		Select themes = (Select) propertyPanel.getField("style");
+		themes.addItem("menu").getItemProperty(
+				themes.getItemCaptionPropertyId()).setValue("menu");
+		propertyPanel.addProperties("Tree Properties", ap);
+
+		setJavadocURL("ui/Tree.html");
+
+		return l;
+	}
+
+	protected String getExampleSrc() {
+		return "// Create tree\n"
+				+ "t = new Tree(\"Organization Structure\");\n"
+				+ "for (int i = 0; i < 100; i++) {\n"
+				+ "	t.addItem(names[i]);\n"
+				+ "	String parent = names[(int) (Math.random() * (names.length - 1))];\n"
+				+ "	if (t.containsId(parent)) \n"
+				+ "		t.setParent(names[i],parent);\n"
+				+ "}\n\n"
+				+ "// Forbid childless people to have children (makes them leaves)\n"
+				+ "for (int i = 0; i < 100; i++)\n"
+				+ "	if (!t.hasChildren(names[i]))\n"
+				+ "		t.setChildrenAllowed(names[i], false);\n";
+	}
+
+	protected String getDescriptionXHTML() {
+		return "A tree is a natural way to represent datasets that have"
+				+ " hierarchical relationships, such as filesystems, message "
+				+ "threads or, as in this example, organization structure. IT Mill Toolkit features a versatile "
+				+ "and powerful Tree component that works much like the tree components "
+				+ "of most modern operating systems."
+				+ "<br /><br />The most prominent use of the Tree component is to "
+				+ "use it for displaying a hierachical menu, like the "
+				+ "menu on the left side of the screen for instance "
+				+ "or to display filesystems or other hierarchical datasets."
+				+ "<br /><br />The tree component uses <code>Container</code> "
+				+ "datasources much like the Table component, "
+				+ "with the addition that it also utilizes the hierarchy "
+				+ "information maintained by the container."
+				+ "<br /><br />On the demo tab you can try out how the different properties "
+				+ "affect the presentation of the tree component.";
+	}
+
+	protected String getImage() {
+		return "icon_demo.png";
+	}
+
+	protected String getTitle() {
+		return "Tree";
+	}
+
+	private Action ACTION1 = new Action("Action 1");
+
+	private Action ACTION2 = new Action("Action 2");
+
+	private Action ACTION3 = new Action("Action 3");
+
+	private Action[] actions = new Action[] { ACTION1, ACTION2, ACTION3 };
+
+	public Action[] getActions(Object target, Object sender) {
+		return actions;
+	}
+
+	public void handleAction(Action action, Object sender, Object target) {
+		t.setDescription("Last action clicked was '" + action.getCaption()
+				+ "' on item '" + target + "'");
+	}
+}