org.eclipse.swt.snippets.Snippet335.java Source code

Introduction

Here is the source code for org.eclipse.swt.snippets.Snippet335.java

Source

/*******************************************************************************
 * Copyright (c) 2000, 2010 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;

/*
 * GridLayout snippet: show a wrappable Label that fills available width
 * without expanding it
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 */
import org.eclipse.swt.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

public class Snippet335 {

    public static void main(String[] args) {
        Display display = new Display();
        Shell shell = new Shell(display);
        shell.setText("Snippet 335");
        shell.setLayout(new GridLayout());

        Label label = new Label(shell, SWT.WRAP | SWT.BORDER);
        GridData labelData = new GridData();
        labelData.widthHint = 10; /* default width */
        labelData.horizontalAlignment = SWT.FILL; /* grow to fill available width */
        label.setLayoutData(labelData);
        label.setText(
                "Snippets are minimal stand-alone programs that demonstrate specific techniques or functionality.");
        new Button(shell, SWT.PUSH).setText("This button determines the Shell's width");

        /* do an initial pack() so that the Shell determines its required width */
        shell.pack();

        /* update the Label's width hint to match what the layout allocated for it */
        labelData.widthHint = label.getBounds().width;

        /*
         * do a second pack() so that the Label will compute its required height
         * based on its correct width instead of its previously-set default width
         */
        shell.pack();

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

}