org.eclipse.e4.xwt.ui.utils.DisplayUtil.java Source code

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Here is the source code for org.eclipse.e4.xwt.ui.utils.DisplayUtil.java

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/*******************************************************************************
 * Copyright (c) 2006, 2010 Soyatec (http://www.soyatec.com) and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     Soyatec - initial API and implementation
 *******************************************************************************/
package org.eclipse.e4.xwt.ui.utils;

import java.net.URI;

import org.eclipse.core.resources.IFile;
import org.eclipse.e4.xwt.XWT;
import org.eclipse.e4.xwt.XWTException;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;

public class DisplayUtil {

    public static void open(IFile file) {
        if (file != null) {
            IJavaProject javaProject = JavaCore.create(file.getProject());
            if (!javaProject.exists()) {
                return;
            }
            URI uri = file.getLocationURI();
            try {
                XWT.setLoadingContext(ProjectContext.getContext(javaProject));
                Object widget = XWT.load(uri.toURL());
                if (!(widget instanceof Control)) {
                    throw new XWTException("Root element must be a control.");
                }
                Shell shell = ((Control) widget).getShell();
                shell.pack();
                shell.open();
                while (!shell.isDisposed())
                    if (!shell.getDisplay().readAndDispatch())
                        shell.getDisplay().sleep();
            } catch (Exception e) {
                e.printStackTrace();
                if (e instanceof RuntimeException) {
                    throw (RuntimeException) e;
                }
                throw new RuntimeException(e);
            }
        }
    }
}