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import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.TreeSelectionModel;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.ImageIcon;
import java.net.URL;
import java.io.IOException;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.LayoutManager;
public class XMSSmodules extends JPanel
implements TreeSelectionListener {
private JEditorPane htmlPane;
private JTree tree;
private URL helpURL;
private static boolean DEBUG = false;
public XMSSmodules() {
super(new BorderLayout());
//Create the nodes.
DefaultMutableTreeNode top =
new DefaultMutableTreeNode("myXMSS");
createNodes(top);
//Create a tree that allows one selection at a time.
tree = new JTree(top);
tree.getSelectionModel().setSelectionMode
(TreeSelectionModel.SINGLE_TREE_SELECTION);
//Set the icon for leaf nodes.
ImageIcon leafIcon = createImageIcon("images/middle.gif");
if (leafIcon != null) {
DefaultTreeCellRenderer renderer = new DefaultTreeCellRenderer();
renderer.setLeafIcon(leafIcon);
tree.setCellRenderer(renderer);
} else {
System.err.println("Leaf icon missing; using default.");
}
//Listen for when the selection changes.
tree.addTreeSelectionListener(this);
//Create the scroll pane and add the tree to it.
JScrollPane treeView = new JScrollPane(tree);
//Create the HTML viewing pane.
htmlPane = new JEditorPane();
htmlPane.setEditable(false);
initHelp();
JScrollPane htmlView = new JScrollPane(htmlPane);
//Add the scroll panes to a split pane.
JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT);
splitPane.setTopComponent(treeView);
splitPane.setBottomComponent(htmlView);
splitPane.setDividerLocation(128);
add(splitPane, BorderLayout.CENTER);
}
/** Required by TreeSelectionListener interface. */
public void valueChanged(TreeSelectionEvent e) {
DefaultMutableTreeNode node = (DefaultMutableTreeNode)
tree.getLastSelectedPathComponent();
if (node == null) return;
Object nodeInfo = node.getUserObject();
if (node.isLeaf()) {
moduleComponentInfo moduleComponent = (moduleComponentInfo)nodeInfo;
displayURL(moduleComponent.moduleComponentURL);
if (DEBUG) {
System.out.print(moduleComponent.moduleComponentURL + ": n ");
}
} else {
displayURL(helpURL);
}
if (DEBUG) {
System.out.println(nodeInfo.toString());
}
}
private class moduleComponentInfo {
public String moduleComponentName;
public URL moduleComponentURL;
public moduleComponentInfo(String moduleComponent, String filename) {
moduleComponentName = moduleComponent;
moduleComponentURL = XMSSmodules.class.getResource(filename);
if (moduleComponentURL == null) {
System.err.println("Couldn't find file: "
+ filename);
}
}
public String toString() {
return moduleComponentName;
}
}
private void initHelp() {
String s = "object_preview.html";
helpURL = XMSSmodules.class.getResource(s);
if (helpURL == null) {
System.err.println("Couldn't open help file: " + s);
} else if (DEBUG) {
System.out.println("Help URL is " + helpURL);
}
displayURL(helpURL);
}
private void displayURL(URL url) {
try {
if (url != null) {
htmlPane.setPage(url);
} else { //null url
htmlPane.setText("check code !!!");
if (DEBUG) {
System.out.println("Attempted to display a null URL.");
}
}
} catch (IOException e) {
System.err.println("Attempted to read a bad URL: " + url);
}
}
private void createNodes(DefaultMutableTreeNode top) {
DefaultMutableTreeNode moduleCategory = null;
DefaultMutableTreeNode moduleComponent = null;
moduleCategory = new DefaultMutableTreeNode("XMSS Views");
top.add(moduleCategory);
moduleComponent = new DefaultMutableTreeNode(new moduleComponentInfo
("XMSS Main Map",
"xmss_main_map.html"));
moduleCategory.add(moduleComponent);
moduleComponent = new DefaultMutableTreeNode(new moduleComponentInfo
("XMSS Department View",
"xmss_department_view.html"));
moduleCategory.add(moduleComponent);
moduleComponent = new DefaultMutableTreeNode(new moduleComponentInfo
("XMSS Extern View",
"xmss_extern_view.html"));
moduleCategory.add(moduleComponent);
moduleCategory.add(moduleComponent);
moduleCategory = new DefaultMutableTreeNode("Reports");
top.add(moduleCategory);
moduleComponent = new DefaultMutableTreeNode(new moduleComponentInfo
("AlleWochenberichte2005.xls",
"excel_preview_1.html"));
moduleCategory.add(moduleComponent);
moduleComponent = new DefaultMutableTreeNode(new moduleComponentInfo
("KennzahlenVertriebNov2005.xls",
"excel_preview_2.html"));
moduleCategory.add(moduleComponent);
moduleCategory = new DefaultMutableTreeNode("Multimedia- und Hypermedia-Dateien");
top.add(moduleCategory);
moduleComponent = new DefaultMutableTreeNode(new moduleComponentInfo
("ConferenceSamplePart1.avi",
"video_preview.html"));
moduleCategory.add(moduleComponent);
moduleComponent = new DefaultMutableTreeNode(new moduleComponentInfo
("ProjectPresentationA12.ppt",
"pp_preview_a12.html"));
moduleCategory.add(moduleComponent);
moduleComponent = new DefaultMutableTreeNode(new moduleComponentInfo
("VectorPresentationApplet.xhtml",
"vector_presentation_applet.html"));
moduleCategory.add(moduleComponent);
moduleComponent = new DefaultMutableTreeNode(new moduleComponentInfo
("UnserKennzahlensytem.doc",
"doc_viewer.html"));
moduleCategory.add(moduleComponent);
moduleCategory = new DefaultMutableTreeNode("Avatare");
top.add(moduleCategory);
moduleComponent = new DefaultMutableTreeNode(new moduleComponentInfo
("Avatar Settings",
"avatar_settings.html"));
moduleCategory.add(moduleComponent);
moduleComponent = new DefaultMutableTreeNode(new moduleComponentInfo
("ReportAgent",
"report_agent.html"));
moduleCategory.add(moduleComponent);
moduleComponent = new DefaultMutableTreeNode(new moduleComponentInfo
("Simulation Agent",
"simulation_agent.html"));
moduleCategory.add(moduleComponent);
moduleComponent = new DefaultMutableTreeNode(new moduleComponentInfo
("Conference Agent",
"conference_agent.html"));
moduleCategory.add(moduleComponent);
moduleCategory = new DefaultMutableTreeNode("OLAP_Module");
top.add(moduleCategory);
moduleComponent = new DefaultMutableTreeNode(new moduleComponentInfo
("OLAP-Cube Settings",
"olap_settings.html"));
moduleCategory.add(moduleComponent);
moduleComponent = new DefaultMutableTreeNode(new moduleComponentInfo
("Olap-Cube Viewer",
"olap_viewer.html"));
moduleCategory.add(moduleComponent);
}
/** Returns an ImageIcon, or null if the path was invalid. */
protected static ImageIcon createImageIcon(String path) {
java.net.URL imgURL = XMSSmodules.class.getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
System.err.println("Couldn't find file: " + path);
return null;
}
}
}
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