InitialStateEditPart.java

/*
 * Copyright (c) 2012-2016 Marsha Chechik, Alessio Di Sandro, Michalis Famelis,
 * Rick Salay.
 * 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:
 *    Alessio Di Sandro - Implementation.
 */
package edu.toronto.cs.se.modelepedia.statemachine_mavo.diagram.edit.parts;

import org.eclipse.draw2d.Ellipse;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.MarginBorder;
import org.eclipse.draw2d.Shape;
import org.eclipse.draw2d.StackLayout;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EcorePackage;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.EditPolicy;
import org.eclipse.gef.Request;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.editpolicies.LayoutEditPolicy;
import org.eclipse.gef.editpolicies.NonResizableEditPolicy;
import org.eclipse.gef.requests.CreateRequest;
import org.eclipse.gmf.runtime.diagram.ui.editparts.ShapeNodeEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.EditPolicyRoles;
import org.eclipse.gmf.runtime.gef.ui.figures.DefaultSizeNodeFigure;
import org.eclipse.gmf.runtime.gef.ui.figures.NodeFigure;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.swt.graphics.Color;

/**
 * @generated
 */
public class InitialStateEditPart extends ShapeNodeEditPart {

	/**
	* @generated
	*/
	public static final int VISUAL_ID = 2002;

	/**
	* @generated
	*/
	protected IFigure contentPane;

	/**
	* @generated
	*/
	protected IFigure primaryShape;

	/**
	* @generated
	*/
	public InitialStateEditPart(View view) {
		super(view);
	}

	/**
	* @generated
	*/
	protected void createDefaultEditPolicies() {
		super.createDefaultEditPolicies();
		installEditPolicy(EditPolicyRoles.SEMANTIC_ROLE,
				new edu.toronto.cs.se.modelepedia.statemachine_mavo.diagram.edit.policies.InitialStateItemSemanticEditPolicy());
		installEditPolicy(EditPolicy.LAYOUT_ROLE, createLayoutEditPolicy());
		// XXX need an SCR to runtime to have another abstract superclass that would let children add reasonable editpolicies
		// removeEditPolicy(org.eclipse.gmf.runtime.diagram.ui.editpolicies.EditPolicyRoles.CONNECTION_HANDLES_ROLE);
	}

	/**
	* @generated
	*/
	protected LayoutEditPolicy createLayoutEditPolicy() {
		org.eclipse.gmf.runtime.diagram.ui.editpolicies.LayoutEditPolicy lep = new org.eclipse.gmf.runtime.diagram.ui.editpolicies.LayoutEditPolicy() {

			protected EditPolicy createChildEditPolicy(EditPart child) {
				EditPolicy result = child.getEditPolicy(EditPolicy.PRIMARY_DRAG_ROLE);
				if (result == null) {
					result = new NonResizableEditPolicy();
				}
				return result;
			}

			protected Command getMoveChildrenCommand(Request request) {
				return null;
			}

			protected Command getCreateCommand(CreateRequest request) {
				return null;
			}
		};
		return lep;
	}

	/**
	* @generated
	*/
	protected IFigure createNodeShape() {
		return primaryShape = new InitialStateFigure();
	}

	/**
	* @generated
	*/
	public InitialStateFigure getPrimaryShape() {
		return (InitialStateFigure) primaryShape;
	}

	/**
	* @generated
	*/
	protected NodeFigure createNodePlate() {
		DefaultSizeNodeFigure result = new DefaultSizeNodeFigure(20, 20);
		return result;
	}

	/**
	* Creates figure for this edit part.
	* 
	* Body of this method does not depend on settings in generation model
	* so you may safely remove <i>generated</i> tag and modify it.
	* 
	* @generated
	*/
	protected NodeFigure createNodeFigure() {
		NodeFigure figure = createNodePlate();
		figure.setLayoutManager(new StackLayout());
		IFigure shape = createNodeShape();
		figure.add(shape);
		contentPane = setupContentPane(shape);
		return figure;
	}

	/**
	* Default implementation treats passed figure as content pane.
	* Respects layout one may have set for generated figure.
	* @param nodeShape instance of generated figure class
	* @generated
	*/
	protected IFigure setupContentPane(IFigure nodeShape) {
		return nodeShape; // use nodeShape itself as contentPane
	}

	/**
	* @generated
	*/
	public IFigure getContentPane() {
		if (contentPane != null) {
			return contentPane;
		}
		return super.getContentPane();
	}

	/**
	* @generated
	*/
	protected void setForegroundColor(Color color) {
		if (primaryShape != null) {
			primaryShape.setForegroundColor(color);
		}
	}

	/**
	* @generated
	*/
	protected void setBackgroundColor(Color color) {
		if (primaryShape != null) {
			primaryShape.setBackgroundColor(color);
		}
	}

	/**
	* @generated
	*/
	protected void setLineWidth(int width) {
		if (primaryShape instanceof Shape) {
			((Shape) primaryShape).setLineWidth(width);
		}
	}

	/**
	* @generated
	*/
	protected void setLineType(int style) {
		if (primaryShape instanceof Shape) {
			((Shape) primaryShape).setLineStyle(style);
		}
	}

	/**
	* @generated
	*/
	protected void handleNotificationEvent(Notification event) {
		if (event.getNotifier() == getModel()
				&& EcorePackage.eINSTANCE.getEModelElement_EAnnotations().equals(event.getFeature())) {
			handleMajorSemanticChange();
		} else {
			super.handleNotificationEvent(event);
		}
	}

	/**
	 * @generated
	 */
	public class InitialStateFigure extends Ellipse {

		/**
		 * @generated
		 */
		public InitialStateFigure() {
			this.setBackgroundColor(THIS_BACK);
			this.setPreferredSize(new Dimension(getMapMode().DPtoLP(20), getMapMode().DPtoLP(20)));
			this.setBorder(new MarginBorder(getMapMode().DPtoLP(5), getMapMode().DPtoLP(5), getMapMode().DPtoLP(5),
					getMapMode().DPtoLP(5)));
		}

	}

	/**
	 * @generated
	 */
	static final Color THIS_BACK = new Color(null, 0, 0, 0);

}