Added new demos.

svn changeset:1097/svn branch:trunk

1 files changed, 94 insertions, 0 deletions

diff --git a/src/com/itmill/toolkit/demo/TreeFilesystemContainer.java b/src/com/itmill/toolkit/demo/TreeFilesystemContainer.java
new file mode 100644
index 0000000000..3297b45d3a
--- /dev/null
+++ b/src/com/itmill/toolkit/demo/TreeFilesystemContainer.java
@@ -0,0 +1,94 @@
+package com.itmill.toolkit.demo;
+
+import java.io.File;
+
+import com.itmill.toolkit.data.util.FilesystemContainer;
+import com.itmill.toolkit.data.util.FilesystemContainer.FileItem;
+import com.itmill.toolkit.ui.*;
+import com.itmill.toolkit.ui.Component.Event;
+import com.itmill.toolkit.ui.Component.Listener;
+
+/**
+ * Browsable file explorer using Toolkit Tree component. Demonstrates: how to
+ * use <code>com.itmill.toolkit.ui.Component.Tree</code> datasource container,
+ * how to create <code>com.itmill.toolkit.data.util.FilesystemContainer</code>,
+ * how to read <code>com.itmill.toolkit.ui.Component.Event</code> objects, how
+ * to receive and handle any event by implementing
+ * <code>com.itmill.toolkit.ui.Component.Listener</code>.
+ * 
+ * @since 4.0.0
+ * 
+ */
+public class TreeFilesystemContainer extends com.itmill.toolkit.Application
+		implements Listener {
+
+	// Default is root directory, e.g. / on unix or \ on windows
+	private static final String DIR_ROOT = "" + File.separatorChar;
+
+	// Filesystem explorer panel and it's components
+	private Panel explorerPanel = new Panel("Filesystem explorer");
+
+	private Tree filesystem = new Tree();
+
+	// File properties panel and it's components
+	private Panel propertyPanel = new Panel("File properties");
+
+	private Label fileProperties = new Label();
+
+	public void init() {
+		Window main = new Window("Tree demo");
+		setMainWindow(main);
+
+		// set the application to use Corporate -theme
+		setTheme("corporate");
+
+		// Main window contains heading and two panels
+		main.addComponent(new Label("<h3>TreeFilesystemContainer demo</h3>",
+				Label.CONTENT_XHTML));
+		main.addComponent(propertyPanel);
+		main.addComponent(explorerPanel);
+
+		// Explorer panel contains tree
+		explorerPanel.addComponent(filesystem);
+		explorerPanel.setWidth(500);
+
+		// Property panel contains label
+		propertyPanel.addComponent(fileProperties);
+		fileProperties.setCaption("No file selected.");
+		propertyPanel.setEnabled(false);
+		propertyPanel.setWidth(500);
+
+		// Populate tree with FilesystemContainer
+		FilesystemContainer fsc = new FilesystemContainer(new File(DIR_ROOT),
+				true);
+		filesystem.setContainerDataSource(fsc);
+		// "this" handles all filesystem events
+		// e.g. node clicked, expanded etc.
+		filesystem.addListener((Listener) this);
+		// Value changes are immediate
+		filesystem.setImmediate(true);
+	}
+
+	/**
+	 * Listener for any component events. This class has been registered as an
+	 * listener for component fsTree.
+	 */
+	public void componentEvent(Event event) {
+		// Check if event occured at fsTree component
+		if (event.getSource() == filesystem) {
+			// Check if event is about changing value
+			if (event.getClass() == Field.ValueChangeEvent.class) {
+				// Update property panel contents
+				FileItem fileItem = (FileItem) filesystem.getItem(filesystem
+						.getValue());
+				fileProperties.setIcon(fileItem.getIcon());
+				fileProperties.setCaption(fileItem.getName() + ", size "
+						+ fileItem.getSize() + " bytes.");
+			}
+			// here we could check for other type of events for filesystem
+			// component
+		}
+		// here we could check for other component's events
+	}
+
+}