/*******************************************************************************
* Copyright (c) 2011 Red Hat, Inc.
* All rights reserved.
* This program is 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:
* Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.eclipse.bpmn2.modeler.core.features;
import static org.eclipse.bpmn2.modeler.core.utils.FeatureSupport.getChildElementOfType;
import org.eclipse.bpmn2.BaseElement;
import org.eclipse.bpmn2.modeler.core.utils.ModelUtil;
import org.eclipse.graphiti.features.IFeatureProvider;
import org.eclipse.graphiti.features.IReason;
import org.eclipse.graphiti.features.context.IUpdateContext;
import org.eclipse.graphiti.features.impl.AbstractUpdateFeature;
import org.eclipse.graphiti.features.impl.Reason;
import org.eclipse.graphiti.mm.algorithms.AbstractText;
import org.eclipse.graphiti.mm.algorithms.Text;
import org.eclipse.graphiti.mm.pictograms.PictogramElement;
import org.eclipse.graphiti.mm.pictograms.Shape;
public class UpdateBaseElementNameFeature extends AbstractUpdateFeature {
public static final String TEXT_ELEMENT = "baseelement.text";
public UpdateBaseElementNameFeature(IFeatureProvider fp) {
super(fp);
}
@Override
public boolean canUpdate(IUpdateContext context) {
BaseElement element = (BaseElement) BusinessObjectUtil.getFirstElementOfType(context.getPictogramElement(),
BaseElement.class);
if (element == null) {
return false;
}
return ModelUtil.hasName(element);
}
@Override
public IReason updateNeeded(IUpdateContext context) {
PictogramElement container = context.getPictogramElement();
BaseElement element = (BaseElement) BusinessObjectUtil.getFirstElementOfType(context.getPictogramElement(),
BaseElement.class);
String elementName = ModelUtil.getName(element);
Shape textShape = getChildElementOfType(container, TEXT_ELEMENT, Boolean.toString(true), Shape.class);
if (textShape!=null) {
String name = ((Text) textShape.getGraphicsAlgorithm()).getValue();
if (elementName != null) {
return elementName.equals(name) ? Reason.createFalseReason() : Reason.createTrueReason();
} else if (name != null) {
return name.equals(elementName) ? Reason.createFalseReason() : Reason.createTrueReason();
}
}
return Reason.createFalseReason();
}
@Override
public boolean update(IUpdateContext context) {
PictogramElement container = (PictogramElement) context.getPictogramElement();
BaseElement element = (BaseElement) BusinessObjectUtil.getFirstElementOfType(context.getPictogramElement(),
BaseElement.class);
Shape textShape = getChildElementOfType(container, TEXT_ELEMENT, Boolean.toString(true), Shape.class);
if (textShape!=null) {
((AbstractText) textShape.getGraphicsAlgorithm()).setValue(ModelUtil.getName(element));
layoutPictogramElement(context.getPictogramElement());
}
return true;
}
}