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/*******************************************************************************
* <copyright>
*
* Copyright (c) 2005, 2010 SAP AG.
* 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:
* Stefan Dimov - initial API, implementation and documentation
*
* </copyright>
*
*******************************************************************************/
package org.eclipse.jpt.jpadiagrameditor.ui.internal.feature;
import org.eclipse.graphiti.features.IFeatureProvider;
import org.eclipse.graphiti.features.context.IAddConnectionContext;
import org.eclipse.graphiti.features.context.IAddContext;
import org.eclipse.graphiti.features.impl.AbstractAddFeature;
import org.eclipse.graphiti.mm.pictograms.ConnectionDecorator;
import org.eclipse.graphiti.mm.pictograms.Diagram;
import org.eclipse.graphiti.mm.pictograms.FreeFormConnection;
import org.eclipse.graphiti.mm.pictograms.PictogramElement;
import org.eclipse.graphiti.services.Graphiti;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.provider.IJPAEditorFeatureProvider;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.provider.IJPAEditorImageCreator;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.provider.JPAEditorImageCreator;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.relations.IsARelation;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.util.IJPAEditorUtil;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.util.JPAEditorUtilImpl;
public class AddInheritedEntityFeature extends AbstractAddFeature {
private IJPAEditorImageCreator imageCreator;
public AddInheritedEntityFeature(IFeatureProvider fp) {
this(fp, new JPAEditorImageCreator(), new JPAEditorUtilImpl());
}
public AddInheritedEntityFeature(IFeatureProvider fp,
IJPAEditorImageCreator imageCreator,
IJPAEditorUtil jpaEditorUtil) {
super(fp);
this.imageCreator = imageCreator;
}
public boolean canAdd(IAddContext context) {
return true;
}
public PictogramElement add(IAddContext context) {
final IAddConnectionContext addConContext = (IAddConnectionContext) context;
final IsARelation relation = (IsARelation)context.getNewObject();
final Diagram diagram = getDiagram();
FreeFormConnection connection = createIsAConnection(addConContext, relation, diagram);
imageCreator.createIsAConnectionLine(diagram, connection);
layoutPictogramElement(connection);
return connection;
}
private FreeFormConnection createIsAConnection(IAddConnectionContext addConContext, IsARelation relation,
final Diagram diagram) {
FreeFormConnection connection = getFeatureProvider().getPeService().createFreeFormConnection(diagram);
connection.setStart(addConContext.getSourceAnchor());
connection.setEnd(addConContext.getTargetAnchor());
connection.setVisible(true);
connection.setActive(true);
getFeatureProvider().getPeServiceUtil().setPropertyValue(connection, IsARelation.IS_A_CONNECTION_PROP_KEY, Boolean.TRUE.toString());
addDecorators(connection);
return connection;
}
public IJPAEditorFeatureProvider getFeatureProvider() {
return (IJPAEditorFeatureProvider)super.getFeatureProvider();
}
private void addDecorators(FreeFormConnection c) {
ConnectionDecorator d = imageCreator.createArrowConnectionDecorator(c, 0.9999, true);
Graphiti.getGaService().setLocation(d.getGraphicsAlgorithm(), 0, 0);
}
}
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