/*****************************************************************************
 * Copyright (c) 2010 CEA LIST.
 *
 *    
 * 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:
 *  Patrick Tessier (CEA LIST) Patrick.tessier@cea.fr - Initial API and implementation
 *
 *****************************************************************************/
package org.eclipse.papyrus.infra.gmfdiag.common;

import java.util.Iterator;
import java.util.List;

import org.eclipse.gef.DefaultEditDomain;
import org.eclipse.gef.GraphicalViewer;
import org.eclipse.gef.commands.CommandStack;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IPrimaryEditPart;
import org.eclipse.gmf.runtime.diagram.ui.parts.DiagramEditDomain;
import org.eclipse.gmf.runtime.diagram.ui.resources.editor.parts.DiagramDocumentEditor;
import org.eclipse.papyrus.commands.CheckedDiagramCommandStack;
import org.eclipse.papyrus.infra.core.ui.IRevealSemanticElement;

/**
 * /**
 * 
 * This GMF editor contains a methods in order to reveal visual element from a list of semantic element.
 * 
 */

public class SynchronizableGmfDiagramEditor extends DiagramDocumentEditor implements IRevealSemanticElement {

	public SynchronizableGmfDiagramEditor(boolean hasFlyoutPalette) {
		super(hasFlyoutPalette);
	}


	/**
	 * reveal all editpart that represent an element in the given list.
	 * 
	 * @see org.eclipse.papyrus.infra.core.ui.IRevealSemanticElement#revealSemanticElement(java.util.List)
	 * 
	 */
	public void revealSemanticElement(List<?> elementList) {
		//create an instance that can get semantic element from gmf
		SemanticFromGMFElement semanticFromGMFElement = new SemanticFromGMFElement();

		// get the graphical viewer
		GraphicalViewer graphicalViewer = getGraphicalViewer();
		if(graphicalViewer != null) {

			//look for among all edit part if the semantic is contained in the list
			Iterator<?> iter = graphicalViewer.getEditPartRegistry().values().iterator();
			IGraphicalEditPart researchedEditPart = null;
			while(iter.hasNext() && researchedEditPart == null) {
				Object currentEditPart = iter.next();
				//look for only among IPrimary editpart to avoid compartment and labels of links
				if(currentEditPart instanceof IPrimaryEditPart) {
					if(elementList.contains(semanticFromGMFElement.getSemanticElement(currentEditPart))) {
						researchedEditPart = ((IGraphicalEditPart)currentEditPart);
					}
				}

			}
			//an editpart has been found so put selection on it.
			if(researchedEditPart != null) {
				graphicalViewer.select(researchedEditPart);
			}
		}
	}

	/**
	 * Configures my diagram edit domain with its command stack.
	 * This method has been completely overridden in order to use a proxy stack.
	 */
	@Override
	protected void configureDiagramEditDomain() {

		DefaultEditDomain editDomain = getEditDomain();

		if(editDomain != null) {
			CommandStack stack = editDomain.getCommandStack();
			if(stack != null) {
				// dispose the old stack
				stack.dispose();
			}

			// create and assign the new stack
			CheckedDiagramCommandStack diagramStack = new CheckedDiagramCommandStack(getDiagramEditDomain());

			editDomain.setCommandStack(diagramStack);
		}

		DiagramEditDomain diagEditDomain = (DiagramEditDomain)getDiagramEditDomain();
		diagEditDomain.setActionManager(createActionManager());
	}
}