snippet170.java

Eclipse JAVA开发软件中SWT各控件范例源码

/*******************************************************************************
 * Copyright (c) 2000, 2005 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.snippets;

/*
 * Tree example snippet: Create a Tree with columns
 * 
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 * 
 * @since 3.1
 */

import org.eclipse.swt.*;
import org.eclipse.swt.widgets.*;
import org.eclipse.swt.layout.*;

public class Snippet170 {
	public static void main(String[] args) {
		Display display = new Display();
		final Shell shell = new Shell(display);
		shell.setLayout(new FillLayout());
		Tree tree = new Tree(shell, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
		tree.setHeaderVisible(true);
		TreeColumn column1 = new TreeColumn(tree, SWT.LEFT);
		column1.setText("Column 1");
		column1.setWidth(200);
		TreeColumn column2 = new TreeColumn(tree, SWT.CENTER);
		column2.setText("Column 2");
		column2.setWidth(200);
		TreeColumn column3 = new TreeColumn(tree, SWT.RIGHT);
		column3.setText("Column 3");
		column3.setWidth(200);
		for (int i = 0; i < 4; i++) {
			TreeItem item = new TreeItem(tree, SWT.NONE);
			item.setText(new String[] { "item " + i, "abc", "defghi" });
			for (int j = 0; j < 4; j++) {
				TreeItem subItem = new TreeItem(item, SWT.NONE);
				subItem.setText(new String[] { "subitem " + j, "jklmnop", "qrs" });
				for (int k = 0; k < 4; k++) {
					TreeItem subsubItem = new TreeItem(subItem, SWT.NONE);
					subsubItem.setText(new String[] { "subsubitem " + k, "tuv", "wxyz" });
				}
			}
		}
		shell.pack();
		shell.open();
		while (!shell.isDisposed()) {
			if (!display.readAndDispatch()) {
				display.sleep();
			}
		}
		display.dispose();
	}
}