org.eclipse.swt.snippets.Snippet104.java Source code

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Here is the source code for org.eclipse.swt.snippets.Snippet104.java

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/*******************************************************************************
 * Copyright (c) 2000, 2016 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * 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.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

public class Snippet104 {

    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(() -> {
            Shell[] shells = new Shell[count[0]];
            for (int i1 = 0; i1 < count[0]; i1++) {
                shells[i1] = new Shell(display);
                shells[i1].setSize(300, 300);
                shells[i1].addListener(SWT.Close, e -> --count[0]);
                bar.setSelection(i1 + 1);
                try {
                    Thread.sleep(1000);
                } catch (Throwable e) {
                }
            }
            splash.close();
            image.dispose();
            for (int i2 = 0; i2 < count[0]; i2++) {
                shells[i2].setText("SWT Snippet 104 - " + (i2 + 1));
                shells[i2].open();
            }
        });
        while (count[0] != 0) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();
    }

}