Web hosting e commerce - Java Swing O Reilly // TestTree3.java // A
Java Swing O Reilly // TestTree3.java // A Simple test to see how we can build a tree and customize its icons. // import java.awt.*; import java.util.*; import java.awt.event.*; import javax.swing.*; import javax.swing.plaf.*; import javax.swing.tree.*; public class TestTree3 extends JFrame { JTree tree; DefaultTreeModel treeModel; public TestTree3() { super(”Tree Test Example”); setSize(200, 150); addWindowListener(new BasicWindowMonitor()); // Add in our own customized tree iconsUIManager.put(”Tree.leafIcon”, new ImageIcon(”world.gif”)); UIManager.put(”Tree.openIcon”, new ImageIcon(”door.open.gif”)); UIManager.put(”Tree.closedIcon”, new ImageIcon(”door.closed.gif”)); UIManager.put(”Tree.expandedIcon”, new ImageIcon(”unlocked.gif”)); UIManager.put(”Tree.collapsedIcon”, new ImageIcon(”locked.gif”)); } public void init() { // Build the hierarchy of containers & objectsString[] schoolyard = {”School”, “Playground”, “Parking Lot”, “Field”}; String[] mainstreet = {”Grocery”, “Shoe Shop”, “Five & Dime”, “Post Office”}; String[] highway = {”Gas Station”, “Convenience Store”}; String[] housing = {”Victorian_blue”, “Faux Colonial”, “Victorian_white”}; String[] housing2 = {”Mission”, “Ranch”, “Condo”}; Hashtable homeHash = new Hashtable(); homeHash.put(”Residential 1″, housing); homeHash.put(”Residential 2″, housing2); Hashtable cityHash = new Hashtable(); cityHash.put(”School grounds”, schoolyard); cityHash.put(”Downtown”, mainstreet); cityHash.put(”Highway”, highway); cityHash.put(”Housing”, homeHash); Hashtable worldHash = new Hashtable(); worldHash.put(”My First VRML World”, cityHash); // Build our tree out of our big hashtable tree = new JTree(worldHash); // Pick an angled line style tree.putClientProperty(”JTree.lineStyle”, “Angled”); getContentPane().add(tree, BorderLayout.CENTER); } public static void main(String args[]) { TestTree3 tt = new TestTree3(); tt.init(); tt.setVisible(true); } - 519 -
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