Java Tutorial/SWT/Splash Screen

Create a splash screen

/*******************************************************************************
 * Copyright (c) 2000, 2004 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;
/*
 * Shell example snippet: create a splash screen
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.ProgressBar;
import org.eclipse.swt.widgets.Shell;
public class SplashScreenCreate {
  public static void main(String[] args) {
    final Display display = new Display();
    final int[] count = new int[] { 4 };
    final Image image = new Image(display, 300, 300);
    GC gc = new GC(image);
    gc.setBackground(display.getSystemColor(SWT.COLOR_CYAN));
    gc.fillRectangle(image.getBounds());
    gc.drawText("Splash Screen", 10, 10);
    gc.dispose();
    final Shell splash = new Shell(SWT.ON_TOP);
    final ProgressBar bar = new ProgressBar(splash, SWT.NONE);
    bar.setMaximum(count[0]);
    Label label = new Label(splash, SWT.NONE);
    label.setImage(image);
    FormLayout layout = new FormLayout();
    splash.setLayout(layout);
    FormData labelData = new FormData();
    labelData.right = new FormAttachment(100, 0);
    labelData.bottom = new FormAttachment(100, 0);
    label.setLayoutData(labelData);
    FormData progressData = new FormData();
    progressData.left = new FormAttachment(0, 5);
    progressData.right = new FormAttachment(100, -5);
    progressData.bottom = new FormAttachment(100, -5);
    bar.setLayoutData(progressData);
    splash.pack();
    Rectangle splashRect = splash.getBounds();
    Rectangle displayRect = display.getBounds();
    int x = (displayRect.width - splashRect.width) / 2;
    int y = (displayRect.height - splashRect.height) / 2;
    splash.setLocation(x, y);
    splash.open();
    display.asyncExec(new Runnable() {
      public void run() {
        Shell[] shells = new Shell[count[0]];
        for (int i = 0; i < count[0]; i++) {
          shells[i] = new Shell(display);
          shells[i].setSize(300, 300);
          shells[i].addListener(SWT.Close, new Listener() {
            public void handleEvent(Event e) {
              --count[0];
            }
          });
          bar.setSelection(i + 1);
          try {
            Thread.sleep(1000);
          } catch (Throwable e) {
          }
        }
        splash.close();
        image.dispose();
        for (int i = 0; i < count[0]; i++) {
          shells[i].open();
        }
      }
    });
    while (count[0] != 0) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }
}