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/*
@ITMillApache2LicenseForJavaFiles@
*/
package com.itmill.toolkit.tests.featurebrowser;
import java.util.Iterator;
import com.itmill.toolkit.event.Action;
import com.itmill.toolkit.ui.Button;
import com.itmill.toolkit.ui.Component;
import com.itmill.toolkit.ui.Form;
import com.itmill.toolkit.ui.OrderedLayout;
import com.itmill.toolkit.ui.Select;
import com.itmill.toolkit.ui.Tree;
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 final 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 (final Iterator i = t.rootItemIds().iterator(); i.hasNext();) {
t.expandItemsRecursively(i.next());
}
}
public void collapseAll() {
for (final Iterator i = t.rootItemIds().iterator(); i.hasNext();) {
t.collapseItemsRecursively(i.next());
}
}
@Override
protected Component getDemoComponent() {
final OrderedLayout l = new OrderedLayout();
final 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]);
final 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(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);
final Form ap = propertyPanel
.createBeanPropertySet(new String[] { "selectable" });
final 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;
}
@Override
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";
}
@Override
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.";
}
@Override
protected String getImage() {
return "icon_demo.png";
}
@Override
protected String getTitle() {
return "Tree";
}
private final Action ACTION1 = new Action("Action 1");
private final Action ACTION2 = new Action("Action 2");
private final Action ACTION3 = new Action("Action 3");
private final 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 + "'");
}
}
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