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/*******************************************************************************
 * Copyright (c) 2000, 2010, 2012 IBM Corporation, Gerhardt Informatics Kft. 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:
 *     IBM Corporation - initial API and implementation
 *     Gerhardt Informatics Kft. - GEFGWT port
 *******************************************************************************/
package org.eclipse.gef.ui.stackview;

import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.part.IPage;
import org.eclipse.ui.part.Page;
import org.eclipse.ui.part.PageBook;
import org.eclipse.ui.part.PageBookView;

/**
 * Internal class used for a debug view.
 * 
 * @deprecated this class will be deleted
 */
public class CommandStackInspector extends PageBookView {

	/**
	 * @see PageBookView#createDefaultPage(org.eclipse.ui.part.PageBook)
	 */
	protected IPage createDefaultPage(PageBook book) {
		Page page = new Page() {
			Control control;

			public void createControl(Composite parent) {
				control = new Canvas(parent, SWT.NONE);
			}

			public Control getControl() {
				return control;
			}

			public void setFocus() {
			}
		};

		page.createControl(book);
		return page;
	}

	/**
	 * @see PageBookView#doCreatePage(org.eclipse.ui.IWorkbenchPart)
	 */
	protected PageRec doCreatePage(IWorkbenchPart part) {
		// Try to get a custom command stack page.
		Object obj = part.getAdapter(CommandStackInspectorPage.class);
		if (obj instanceof IPage) {
			IPage page = (IPage) obj;
			page.createControl(getPageBook());
			return new PageRec(part, page);
		}

		// Use the default page
		return null;
	}

	/**
	 * Destroys a page in the pagebook.
	 * 
	 * Subclasses of PageBookView must implement the creation and destruction of
	 * pages in the view. This method should be implemented by the subclass to
	 * destroy a page for the given part.
	 * 
	 * 
	 * @param part
	 *            the input part
	 * @param rec
	 *            a page record for the part
	 */
	protected void doDestroyPage(IWorkbenchPart part, PageRec rec) {
		rec.page.dispose();
	}

	/**
	 * @see PageBookView#getBootstrapPart()
	 */
	protected IWorkbenchPart getBootstrapPart() {
		IWorkbenchPage persp = getSite().getWorkbenchWindow().getActivePage();
		if (persp != null)
			return persp.getActiveEditor();
		else
			return null;
	}

	/**
	 * @see PageBookView#isImportant(org.eclipse.ui.IWorkbenchPart)
	 */
	protected boolean isImportant(IWorkbenchPart part) {
		return part instanceof IEditorPart;
	}

}