org.eclipse.swt.snippets.Snippet295.java Source code

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Here is the source code for org.eclipse.swt.snippets.Snippet295.java

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/*******************************************************************************
 * Copyright (c) 2000, 2013 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 dialog Shell and prompt for a text string
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 */
import static org.eclipse.swt.events.SelectionListener.*;

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

public class Snippet295 {

    public static void main(String[] args) {
        Display display = new Display();
        final Shell shell = new Shell(display);
        shell.setText("Shell");
        FillLayout fillLayout = new FillLayout();
        fillLayout.marginWidth = 10;
        fillLayout.marginHeight = 10;
        shell.setLayout(fillLayout);

        Button open = new Button(shell, SWT.PUSH);
        open.setText("Prompt for a String");
        open.addSelectionListener(widgetSelectedAdapter(e -> {
            final Shell dialog = new Shell(shell, SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL);
            dialog.setText("Dialog Shell");
            FormLayout formLayout = new FormLayout();
            formLayout.marginWidth = 10;
            formLayout.marginHeight = 10;
            formLayout.spacing = 10;
            dialog.setLayout(formLayout);

            Label label = new Label(dialog, SWT.NONE);
            label.setText("Type a String:");
            FormData data = new FormData();
            label.setLayoutData(data);

            Button cancel = new Button(dialog, SWT.PUSH);
            cancel.setText("Cancel");
            data = new FormData();
            data.width = 60;
            data.right = new FormAttachment(100, 0);
            data.bottom = new FormAttachment(100, 0);
            cancel.setLayoutData(data);
            cancel.addSelectionListener(widgetSelectedAdapter(event -> {
                System.out.println("User cancelled dialog");
                dialog.close();
            }));

            final Text text = new Text(dialog, SWT.BORDER);
            data = new FormData();
            data.width = 200;
            data.left = new FormAttachment(label, 0, SWT.DEFAULT);
            data.right = new FormAttachment(100, 0);
            data.top = new FormAttachment(label, 0, SWT.CENTER);
            data.bottom = new FormAttachment(cancel, 0, SWT.DEFAULT);
            text.setLayoutData(data);

            Button ok = new Button(dialog, SWT.PUSH);
            ok.setText("OK");
            data = new FormData();
            data.width = 60;
            data.right = new FormAttachment(cancel, 0, SWT.DEFAULT);
            data.bottom = new FormAttachment(100, 0);
            ok.setLayoutData(data);
            ok.addSelectionListener(widgetSelectedAdapter(event -> {
                System.out.println("User typed: " + text.getText());
                dialog.close();
            }));

            dialog.setDefaultButton(ok);
            dialog.pack();
            dialog.open();
        }));
        shell.pack();
        shell.open();

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