org.eclipse.gmf.examples.runtime.diagram.logic/src/org/eclipse/gmf/examples/runtime/diagram/logic/internal/editparts/LogicFlowCompartmentEditPart.java

/******************************************************************************
 * Copyright (c) 2004, 2006 IBM Corporation 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 
 ****************************************************************************/

package org.eclipse.gmf.examples.runtime.diagram.logic.internal.editparts;

import java.beans.PropertyChangeEvent;

import org.eclipse.draw2d.FlowLayout;
import org.eclipse.draw2d.IFigure;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.gef.EditPolicy;

import org.eclipse.gmf.examples.runtime.diagram.logic.internal.editpolicies.LogicFlowEditPolicy;
import org.eclipse.gmf.examples.runtime.diagram.logic.internal.l10n.ExampleDiagramLogicMessages;
import org.eclipse.gmf.runtime.diagram.ui.editparts.ListCompartmentEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.CreationEditPolicy;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.DragDropEditPolicy;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.EditPolicyRoles;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.PopupBarEditPolicy;
import org.eclipse.gmf.runtime.diagram.ui.figures.ResizableCompartmentFigure;
import org.eclipse.gmf.runtime.notation.View;

/**
 * @author qili
 *
 * Holds the EditPart signifying a ResizableCompartmentFigure
 */
public class LogicFlowCompartmentEditPart extends ListCompartmentEditPart{
	
	/**
	 * Constructor for LogicFlowCompartmentEditPart.
	 * @param view the view <code>controlled</code> by this editpart.
	 */
	public LogicFlowCompartmentEditPart(View view) {
		super(view);
	}
	
	/* (non-Javadoc)
	 * @see org.eclipse.gef.editparts.AbstractGraphicalEditPart#createFigure()
	 */
	public IFigure createFigure() {
		
		ResizableCompartmentFigure rcf = (ResizableCompartmentFigure) super.createFigure();
		FlowLayout layout = new FlowLayout();
		layout.setMajorSpacing(getMapMode().DPtoLP(5));
		layout.setMinorSpacing(getMapMode().DPtoLP(5));
		rcf.getContentPane().setLayoutManager(layout);
		return rcf;
	}
	
	/**
	 * In LogicCreationEditPolicy overwrite "getReparentCommand(ChangeBoundsRequest)" 
	 * function and remove the assumption on SemanticElement
	 */
	protected void createDefaultEditPolicies() {
		super.createDefaultEditPolicies();
		installEditPolicy(EditPolicyRoles.CREATION_ROLE, new CreationEditPolicy());
		installEditPolicy(EditPolicyRoles.DRAG_DROP_ROLE, new DragDropEditPolicy());
		installEditPolicy(EditPolicy.NODE_ROLE, null);
		installEditPolicy(EditPolicy.GRAPHICAL_NODE_ROLE, null);
		installEditPolicy(EditPolicy.LAYOUT_ROLE, new LogicFlowEditPolicy());	
		installEditPolicy(EditPolicyRoles.POPUPBAR_ROLE, new PopupBarEditPolicy());
	}
	
	/**
	 * Subclasses should override to return the compartment title
	 * 
	 * @return The compartment title
	 */
	public String getCompartmentName() {
		return ExampleDiagramLogicMessages.LogicFlowCompartmentEditPart_Title;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.gmf.runtime.diagram.ui.editparts.ListCompartmentEditPart#hasModelChildrenChanged(java.beans.PropertyChangeEvent)
	 */
	protected boolean hasModelChildrenChanged(PropertyChangeEvent evt) {
		return false;
	}
	
	/* (non-Javadoc)
	 * @see org.eclipse.gmf.runtime.diagram.ui.editparts.ListCompartmentEditPart#hasModelChildrenChanged(java.beans.PropertyChangeEvent)
	 */
	protected boolean hasModelChildrenChanged(Notification evt) {
		return false;
	}
}