org.eclipse.swt.snippets.Snippet166.java Source code

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Here is the source code for org.eclipse.swt.snippets.Snippet166.java

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/*******************************************************************************
 * Copyright (c) 2000, 2017 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;

/*
 * Create a ScrolledComposite with wrapping content.
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 *
 * @since 3.0
 */
import org.eclipse.swt.*;
import org.eclipse.swt.custom.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

public class Snippet166 {

    public static void main(String[] args) {
        Display display = new Display();
        Image image1 = display.getSystemImage(SWT.ICON_WORKING);
        Image image2 = display.getSystemImage(SWT.ICON_QUESTION);
        Image image3 = display.getSystemImage(SWT.ICON_ERROR);

        Shell shell = new Shell(display);
        shell.setText("Snippet 166");
        shell.setLayout(new FillLayout());

        final ScrolledComposite scrollComposite = new ScrolledComposite(shell, SWT.V_SCROLL | SWT.BORDER);

        final Composite parent = new Composite(scrollComposite, SWT.NONE);
        for (int i = 0; i <= 50; i++) {
            Label label = new Label(parent, SWT.NONE);
            if (i % 3 == 0)
                label.setImage(image1);
            if (i % 3 == 1)
                label.setImage(image2);
            if (i % 3 == 2)
                label.setImage(image3);
        }
        RowLayout layout = new RowLayout(SWT.HORIZONTAL);
        layout.wrap = true;
        parent.setLayout(layout);

        scrollComposite.setContent(parent);
        scrollComposite.setExpandVertical(true);
        scrollComposite.setExpandHorizontal(true);
        scrollComposite.addControlListener(ControlListener.controlResizedAdapter(e -> {
            Rectangle r = scrollComposite.getClientArea();
            scrollComposite.setMinSize(parent.computeSize(r.width, SWT.DEFAULT));
        }));

        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) {
                display.sleep();
            }
        }
        display.dispose();
    }
}