EclipseconBaseItemSemanticEditPolicy.java example

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gmf-tooling-master
package org.eclipse.gmf.examples.eclipsecon.diagram.edit.policies;

import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.commands.UnexecutableCommand;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand;
import org.eclipse.gmf.runtime.diagram.core.util.ViewUtil;
import org.eclipse.gmf.runtime.diagram.ui.commands.EtoolsProxyCommand;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.SemanticEditPolicy;
import org.eclipse.gmf.runtime.emf.commands.core.command.CompositeTransactionalCommand;
import org.eclipse.gmf.runtime.emf.type.core.IElementType;
import org.eclipse.gmf.runtime.emf.type.core.requests.ConfigureRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateElementRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyElementRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyReferenceRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.DuplicateElementsRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.GetEditContextRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.IEditCommandRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.MoveRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientReferenceRelationshipRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.SetRequest;
import org.eclipse.gmf.runtime.notation.View;

/**
 * @generated
 */
public class EclipseconBaseItemSemanticEditPolicy extends SemanticEditPolicy {

	/**
	 * @generated
	 */
	protected Command getSemanticCommand(IEditCommandRequest request) {
		IEditCommandRequest completedRequest = completeRequest(request);
		Command semanticCommand = getSemanticCommandSwitch(completedRequest);
		if (semanticCommand == null) {
			return UnexecutableCommand.INSTANCE;
		}
		boolean shouldProceed = true;
		if (completedRequest instanceof DestroyRequest) {
			shouldProceed = shouldProceed((DestroyRequest) completedRequest);
		}
		if (shouldProceed) {
			if (completedRequest instanceof DestroyRequest) {
				ICommand deleteCommand = new DeleteCommand((View) getHost()
						.getModel());
				semanticCommand = semanticCommand.chain(new EtoolsProxyCommand(
						deleteCommand));
			}
			return semanticCommand;
		}
		return UnexecutableCommand.INSTANCE;
	}

	/**
	 * @generated
	 */
	protected Command getSemanticCommandSwitch(IEditCommandRequest req) {
		if (req instanceof CreateRelationshipRequest) {
			return getCreateRelationshipCommand((CreateRelationshipRequest) req);
		} else if (req instanceof CreateElementRequest) {
			return getCreateCommand((CreateElementRequest) req);
		} else if (req instanceof ConfigureRequest) {
			return getConfigureCommand((ConfigureRequest) req);
		} else if (req instanceof DestroyElementRequest) {
			return getDestroyElementCommand((DestroyElementRequest) req);
		} else if (req instanceof DestroyReferenceRequest) {
			return getDestroyReferenceCommand((DestroyReferenceRequest) req);
		} else if (req instanceof DuplicateElementsRequest) {
			return getDuplicateCommand((DuplicateElementsRequest) req);
		} else if (req instanceof GetEditContextRequest) {
			return getEditContextCommand((GetEditContextRequest) req);
		} else if (req instanceof MoveRequest) {
			return getMoveCommand((MoveRequest) req);
		} else if (req instanceof ReorientReferenceRelationshipRequest) {
			return getReorientReferenceRelationshipCommand((ReorientReferenceRelationshipRequest) req);
		} else if (req instanceof ReorientRelationshipRequest) {
			return getReorientRelationshipCommand((ReorientRelationshipRequest) req);
		} else if (req instanceof SetRequest) {
			return getSetCommand((SetRequest) req);
		}
		return null;
	}

	/**
	 * @generated
	 */
	protected Command getConfigureCommand(ConfigureRequest req) {
		return null;
	}

	/**
	 * @generated
	 */
	protected Command getCreateRelationshipCommand(CreateRelationshipRequest req) {
		return null;
	}

	/**
	 * @generated
	 */
	protected Command getCreateCommand(CreateElementRequest req) {
		return null;
	}

	/**
	 * @generated
	 */
	protected Command getSetCommand(SetRequest req) {
		return null;
	}

	/**
	 * @generated
	 */
	protected Command getEditContextCommand(GetEditContextRequest req) {
		return null;
	}

	/**
	 * @generated
	 */
	protected Command getDestroyElementCommand(DestroyElementRequest req) {
		return null;
	}

	/**
	 * @generated
	 */
	protected Command getDestroyReferenceCommand(DestroyReferenceRequest req) {
		return null;
	}

	/**
	 * @generated
	 */
	protected Command getDuplicateCommand(DuplicateElementsRequest req) {
		return null;
	}

	/**
	 * @generated
	 */
	protected Command getMoveCommand(MoveRequest req) {
		return null;
	}

	/**
	 * @generated
	 */
	protected Command getReorientReferenceRelationshipCommand(
			ReorientReferenceRelationshipRequest req) {
		return null;
	}

	/**
	 * @generated
	 */
	protected Command getReorientRelationshipCommand(
			ReorientRelationshipRequest req) {
		return null;
	}

	/**
	 * @generated
	 */
	protected Command getMSLWrapper(ICommand cmd) {
		TransactionalEditingDomain editingDomain = ((IGraphicalEditPart) getHost())
				.getEditingDomain();
		CompositeTransactionalCommand modelCmd = new CompositeTransactionalCommand(
				editingDomain, cmd.getLabel());
		modelCmd.compose(cmd);
		return new EtoolsProxyCommand(modelCmd);
	}

	/**
	 * @generated
	 */
	protected EObject getSemanticElement() {
		return ViewUtil.resolveSemanticElement((View) getHost().getModel());
	}

	/**
	 * Finds container element for the new relationship of the specified type.
	 * Default implementation goes up by containment hierarchy starting from
	 * the specified element and returns the first element that is instance of
	 * the specified container class.
	 * 
	 * @generated
	 */
	protected EObject getRelationshipContainer(EObject element,
			EClass containerClass, IElementType relationshipType) {
		for (; element != null; element = element.eContainer()) {
			if (containerClass.isSuperTypeOf(element.eClass())) {
				return element;
			}
		}
		return null;
	}

}