tests/org.eclipse.swt.tests.gtk/ManualTests/org/eclipse/swt/tests/gtk/snippets/Bug514483_SelectionEventLostFocus.java

/*******************************************************************************
 * Copyright (c) 2018 Red Hat 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:
 *     Red Hat - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.tests.gtk.snippets;


import static org.eclipse.swt.events.SelectionListener.*;

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class Bug514483_SelectionEventLostFocus {

	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.TOOL | SWT.ON_TOP | SWT.RESIZE);
			dialog.setText("Dialog Shell");
			FormLayout formLayout = new FormLayout ();
			formLayout.marginWidth = 10;
			formLayout.marginHeight = 10;
			formLayout.spacing = 10;
			dialog.setLayout (formLayout);
			dialog.setLocation(26, 52);

			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.SINGLE | SWT.BORDER | SWT.SEARCH
					| SWT.ICON_CANCEL);


			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 -> {
				dialog.close ();
			}));

			dialog.setDefaultButton (ok);
			dialog.pack ();
			text.setFocus();
			dialog.open ();
			System.out.println("dialog at "+dialog.getBounds());
		}));
		shell.pack ();
		shell.open ();

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