SampleList.java Source code

Introduction

Here is the source code for SampleList.java

Source

/******************************************************************************
 * Copyright (c) 1998, 2004 Jackwind Li Guojie
 * All right reserved. 
 * 
 * Created on Feb 8, 2004 8:21:31 PM by JACK
 * $Id$
 * 
 * visit: http://www.asprise.com/swt
 *****************************************************************************/

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.List;
import org.eclipse.swt.widgets.Shell;

public class SampleList {
    Display display = new Display();
    Shell shell = new Shell(display);

    public SampleList() {
        init();

        RowLayout rowLayout = new RowLayout();
        shell.setLayout(rowLayout);

        (new Label(shell, SWT.NULL)).setText("What programming languages are you proficient in? ");

        final List list = new List(shell, SWT.SINGLE | SWT.BORDER | SWT.V_SCROLL);

        String[] languages = new String[] { "Java", "C", "C++", "SmallTalk" };

        for (int i = 0; i < languages.length; i++)
            list.add(languages[i]);

        list.addSelectionListener(new SelectionListener() {
            public void widgetSelected(SelectionEvent e) {
                System.err.println(list.getSelectionIndex());
                int[] indices = list.getSelectionIndices();
                String[] items = list.getSelection();
                StringBuffer sb = new StringBuffer("Selected indices: ");
                for (int i = 0; i < indices.length; i++) {
                    sb.append(indices[i]);
                    sb.append("(");
                    sb.append(items[i]);
                    sb.append(")");
                    if (i == indices.length - 1)
                        sb.append('.');
                    else
                        sb.append(", ");
                }
                System.out.println(sb.toString());
            }

            public void widgetDefaultSelected(SelectionEvent e) {
                int[] indices = list.getSelectionIndices();
                String[] items = list.getSelection();
                StringBuffer sb = new StringBuffer("Default selected indices: ");
                for (int i = 0; i < indices.length; i++) {
                    sb.append(indices[i]);
                    sb.append("(");
                    sb.append(items[i]);
                    sb.append(")");
                    if (i == indices.length - 1)
                        sb.append('.');
                    else
                        sb.append(", ");
                }
                System.out.println(sb.toString());
            }
        });

        list.selectAll();
        //list.select(1);

        shell.pack();
        shell.open();
        //textUser.forceFocus();

        // Set up the event loop.
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) {
                // If no more entries in event queue
                display.sleep();
            }
        }

        display.dispose();
    }

    private void init() {

    }

    public static void main(String[] args) {
        new SampleList();
    }
}