Bug 463290 - Papyrus diagram shall be expanded with new visual graphical

notation
create the first version of interpretors

Change-Id: I206b42116762524eef531fe09b18dd7fae2bbed6

1 files changed, 187 insertions, 0 deletions

diff --git a/plugins/infra/gmfdiag/org.eclipse.papyrus.infra.gmfdiag.dnd/src/org/eclipse/papyrus/infra/gmfdiag/dnd/strategy/ExpansionElementDropStrategy.java b/plugins/infra/gmfdiag/org.eclipse.papyrus.infra.gmfdiag.dnd/src/org/eclipse/papyrus/infra/gmfdiag/dnd/strategy/ExpansionElementDropStrategy.java
new file mode 100644
index 00000000000..3d592e268e9
--- /dev/null
+++ b/plugins/infra/gmfdiag/org.eclipse.papyrus.infra.gmfdiag.dnd/src/org/eclipse/papyrus/infra/gmfdiag/dnd/strategy/ExpansionElementDropStrategy.java
@@ -0,0 +1,187 @@
+/*****************************************************************************

+ * Copyright (c) 2015 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:

+ *  Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation

+ *****************************************************************************/

+package org.eclipse.papyrus.infra.gmfdiag.dnd.strategy;

+

+import java.util.ArrayList;

+import java.util.List;

+import java.util.Map;

+

+import org.eclipse.core.runtime.Platform;

+import org.eclipse.emf.ecore.EObject;

+import org.eclipse.gef.EditPart;

+import org.eclipse.gef.Request;

+import org.eclipse.gef.commands.Command;

+import org.eclipse.gef.commands.CompoundCommand;

+import org.eclipse.gmf.runtime.common.core.command.CompositeCommand;

+import org.eclipse.gmf.runtime.diagram.core.services.ViewService;

+import org.eclipse.gmf.runtime.diagram.ui.commands.CommandProxy;

+import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;

+import org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart;

+import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;

+import org.eclipse.gmf.runtime.emf.type.core.ElementTypeRegistry;

+import org.eclipse.gmf.runtime.emf.type.core.IElementMatcher;

+import org.eclipse.gmf.runtime.emf.type.core.IElementType;

+import org.eclipse.gmf.runtime.emf.type.core.IHintedType;

+import org.eclipse.gmf.runtime.emf.type.core.ISpecializationType;

+import org.eclipse.gmf.runtime.notation.Diagram;

+import org.eclipse.gmf.runtime.notation.View;

+import org.eclipse.papyrus.commands.wrappers.CommandProxyWithResult;

+import org.eclipse.papyrus.commands.wrappers.GMFtoGEFCommandWrapper;

+import org.eclipse.papyrus.infra.gmfdiag.common.expansion.ChildrenListRepresentation;

+import org.eclipse.papyrus.infra.gmfdiag.common.expansion.DiagramExpansionsRegistry;

+import org.eclipse.papyrus.infra.gmfdiag.common.expansionmodel.AbstractRepresentation;

+import org.eclipse.papyrus.infra.gmfdiag.common.expansionmodel.Representation;

+import org.eclipse.papyrus.infra.viewpoints.policy.ViewPrototype;

+import org.eclipse.swt.graphics.Image;

+

+/**

+

+ *

+ */

+public class ExpansionElementDropStrategy extends TransactionalDropStrategy {

+

+	private DiagramExpansionsRegistry diagramExpansionRegistry;

+	private static final boolean DEBUG_EXPANSION = "true".equalsIgnoreCase(Platform.getDebugOption(

+			"org.eclipse.papyrus.infra.gmfdiag.common/debug/expansion"));

+

+	/**

+	 * Constructor.

+	 *

+	 */

+	public ExpansionElementDropStrategy() {

+		this.diagramExpansionRegistry = new DiagramExpansionsRegistry();

+	}

+	public String getLabel() {

+		return "Expansion element drag and drop";

+	}

+

+	public String getID() {

+		return "org.eclipse.papyrus.infra.gmfdiag.dnd.expansiondropsteategy";

+	}

+

+	public String getDescription() {

+		return "This strategy is used to allow dropping of expansion of elements in extended diagrams.";

+	}

+

+	public Image getImage() {

+		return null;

+	}

+

+	public int getPriority() {

+		return 0;

+	}

+

+	public void setOptions(Map<String, Object> options) {

+		// Nothing

+	}

+	/**

+	 * get the diagram type from a view.

+	 * @param currentView the current view

+	 * @return the diagram type it can be also a view point

+	 */

+	protected String getDiagramType(View currentView) {

+		Diagram diagram=currentView.getDiagram();

+		String currentDiagramType=null;

+		ViewPrototype viewPrototype=org.eclipse.papyrus.infra.gmfdiag.common.utils.DiagramUtils.getPrototype(diagram);

+		if(viewPrototype!=null){

+			currentDiagramType=viewPrototype.getLabel();

+		}

+		else{

+			currentDiagramType=diagram.getType();

+		}

+		return currentDiagramType;

+	}

+	@Override

+	public Command doGetCommand(Request request, final EditPart targetEditPart) {

+

+		CompositeCommand cc = new CompositeCommand(getLabel());

+		if(targetEditPart instanceof GraphicalEditPart){

+			IGraphicalEditPart graphicalEditPart= (IGraphicalEditPart)targetEditPart;

+			String diagramType= getDiagramType(graphicalEditPart.getNotationView());

+			ChildrenListRepresentation listRepresentation=diagramExpansionRegistry.mapChildreen.get(diagramType);

+			//to the current diagram, a expansion is added. 

+			if(listRepresentation==null){

+				return null;

+			}

+			//look for all possible children for the current target.

+			List<String>childrenList =listRepresentation.parentChildrenRelation.get(graphicalEditPart.getNotationView().getType());

+			if(childrenList==null){

+				return null;

+			}

+			List<EObject> sourceElements = getSourceEObjects(request);

+			if(sourceElements.size()==0 ){

+				return null;

+			}

+			final List<EObject> valuesToAdd = new ArrayList<EObject>(sourceElements.size());

+			//getList of accepted ElementType

+			final ArrayList<ISpecializationType> acceptedElementTypes= new ArrayList<ISpecializationType>();

+

+

+			for (String posibleID : childrenList) {

+				AbstractRepresentation abstractRepresentation=listRepresentation.IDMap.get(posibleID);

+				if( abstractRepresentation instanceof Representation){

+					String elementTypeID=((Representation)abstractRepresentation).getGraphicalElementType();

+					if( elementTypeID!=null && elementTypeID!=""){

+						final IElementType elementType=ElementTypeRegistry.getInstance().getType(elementTypeID);

+						if( elementType instanceof ISpecializationType){

+							acceptedElementTypes.add((ISpecializationType)elementType);

+						}

+					}

+				}

+			}

+			if(DEBUG_EXPANSION){

+				System.out.println("try to drop "+ sourceElements+" inside "+graphicalEditPart.getNotationView().getType()+ " accepts "+childrenList);

+			}

+			// get the sub list of accepted source element that match to elementType

+			for (EObject sourceElement : sourceElements) {

+				Command cmd=null;

+				int acceptedElementTypesIndex=0;

+				while (cmd==null &&acceptedElementTypesIndex<acceptedElementTypes.size()){

+					final ISpecializationType iSpecializationType = acceptedElementTypes.get(acceptedElementTypesIndex);

+					IElementMatcher matcher=iSpecializationType.getMatcher();

+					if( matcher.matches(sourceElement)){

+						valuesToAdd.add(sourceElement);

+						if(DEBUG_EXPANSION){

+							System.out.println("try to drop command created for "+ sourceElement+ " "+iSpecializationType);

+						}

+						cmd= new Command() {

+							@Override

+							public void execute() {

+								if( iSpecializationType instanceof IHintedType){

+									ViewService.createNode(((GraphicalEditPart) targetEditPart).getNotationView(),valuesToAdd.get(0), ((IHintedType)iSpecializationType).getSemanticHint(), ((GraphicalEditPart) targetEditPart).getDiagramPreferencesHint());

+								}

+							}

+

+						};

+						cc.add(new CommandProxy( cmd));

+					}

+					else{

+						acceptedElementTypesIndex++;

+					}

+

+				}

+

+			}

+		}

+

+		return cc.canExecute() ? new ICommandProxy(cc.reduce()) : null;

+	}

+

+

+	public String getCategoryID() {

+		return "org.eclipse.papyrus.infra.gmfdiag.dnd.expansiondropsteategy";

+	}

+

+	public String getCategoryLabel() {

+		return "Expansion element drag and drop";

+	}

+}