org.eclipse.swt.snippets.Snippet175.java Source code

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Here is the source code for org.eclipse.swt.snippets.Snippet175.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;

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

/*
 * Exclude a widget from a GridLayout
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 *
 * @since 3.1
 */

public class Snippet175 {

    public static void main(String[] args) {

        Display display = new Display();
        final Shell shell = new Shell(display);
        shell.setText("Snippet 175");
        shell.setLayout(new GridLayout(3, false));

        Button b = new Button(shell, SWT.PUSH);
        b.setText("Button 0");

        final Button bHidden = new Button(shell, SWT.PUSH);
        bHidden.setText("Button 1");
        GridData data = new GridData();
        data.exclude = true;
        data.horizontalSpan = 2;
        data.horizontalAlignment = SWT.FILL;
        bHidden.setLayoutData(data);

        b = new Button(shell, SWT.PUSH);
        b.setText("Button 2");
        b = new Button(shell, SWT.PUSH);
        b.setText("Button 3");
        b = new Button(shell, SWT.PUSH);
        b.setText("Button 4");

        b = new Button(shell, SWT.CHECK);
        b.setText("hide");
        b.setSelection(true);
        b.addListener(SWT.Selection, e -> {
            Button b1 = (Button) e.widget;
            GridData data1 = (GridData) bHidden.getLayoutData();
            data1.exclude = b1.getSelection();
            bHidden.setVisible(!data1.exclude);
            shell.layout(false);
        });
        shell.setSize(400, 400);
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();
    }
}