/*******************************************************************************
* 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.ui.features.event;
import static org.eclipse.bpmn2.modeler.core.utils.GraphicsUtil.EVENT_SIZE;
import static org.eclipse.bpmn2.modeler.ui.features.event.BoundaryEventFeatureContainer.BOUNDARY_EVENT_CANCEL;
import org.eclipse.bpmn2.Activity;
import org.eclipse.bpmn2.BoundaryEvent;
import org.eclipse.bpmn2.modeler.core.di.DIImport;
import org.eclipse.bpmn2.modeler.core.features.AbstractBpmnAddFeature;
import org.eclipse.bpmn2.modeler.core.features.BusinessObjectUtil;
import org.eclipse.bpmn2.modeler.core.utils.AnchorUtil;
import org.eclipse.bpmn2.modeler.core.utils.GraphicsUtil;
import org.eclipse.bpmn2.modeler.core.utils.StyleUtil;
import org.eclipse.graphiti.features.IFeatureProvider;
import org.eclipse.graphiti.features.context.IAddContext;
import org.eclipse.graphiti.mm.algorithms.Ellipse;
import org.eclipse.graphiti.mm.algorithms.GraphicsAlgorithm;
import org.eclipse.graphiti.mm.pictograms.ChopboxAnchor;
import org.eclipse.graphiti.mm.pictograms.ContainerShape;
import org.eclipse.graphiti.mm.pictograms.PictogramElement;
import org.eclipse.graphiti.services.Graphiti;
import org.eclipse.graphiti.services.IGaService;
import org.eclipse.graphiti.services.IPeService;
public class BoundaryEventAddFeature extends AbstractBpmnAddFeature {
public static final String BOUNDARY_EVENT_RELATIVE_Y = "boundary.event.relative.y";
private final IPeService peService = Graphiti.getPeService();
private final IGaService gaService = Graphiti.getGaService();
public BoundaryEventAddFeature(IFeatureProvider fp) {
super(fp);
}
@Override
public boolean canAdd(IAddContext context) {
if (!(context.getNewObject() instanceof BoundaryEvent)) {
return false;
}
Object prop = context.getProperty(DIImport.IMPORT_PROPERTY);
if (prop != null && (Boolean) prop) {
return true;
}
Object bo = getBusinessObjectForPictogramElement(context.getTargetContainer());
return bo != null && bo instanceof Activity;
}
@Override
public PictogramElement add(IAddContext context) {
BoundaryEvent event = (BoundaryEvent) context.getNewObject();
Object prop = context.getProperty(DIImport.IMPORT_PROPERTY);
boolean importing = prop != null && (Boolean) prop;
ContainerShape target = importing ? context.getTargetContainer() : (ContainerShape) context
.getTargetContainer().eContainer();
ContainerShape containerShape = peService.createContainerShape(target, true);
Ellipse ellipse = gaService.createEllipse(containerShape);
StyleUtil.applyBGStyle(ellipse, this);
if (importing) { // if loading from DI then place according to context
gaService.setLocationAndSize(ellipse, context.getX(), context.getY(), EVENT_SIZE, EVENT_SIZE);
} else { // otherwise place it in the center of shape for user to adjust it
GraphicsAlgorithm ga = context.getTargetContainer().getGraphicsAlgorithm();
int x = ga.getX() + context.getX() - (EVENT_SIZE / 2);
int y = ga.getY() + context.getY() - (EVENT_SIZE / 2);
gaService.setLocationAndSize(ellipse, x, y, EVENT_SIZE, EVENT_SIZE);
}
Ellipse circle = GraphicsUtil.createIntermediateEventCircle(ellipse);
circle.setStyle(StyleUtil.getStyleForClass(getDiagram()));
createDIShape(containerShape, event);
ChopboxAnchor anchor = peService.createChopboxAnchor(containerShape);
anchor.setReferencedGraphicsAlgorithm(ellipse);
AnchorUtil.addFixedPointAnchors(containerShape, ellipse);
Activity activity = event.getAttachedToRef();
PictogramElement foundElem = BusinessObjectUtil.getFirstBaseElementFromDiagram(getDiagram(), activity);
if (foundElem != null && foundElem instanceof ContainerShape) {
ContainerShape activityContainer = (ContainerShape) foundElem;
PositionOnLine pos = BoundaryEventPositionHelper.getPositionOnLineUsingBPMNShape(containerShape,
activityContainer);
BoundaryEventPositionHelper.assignPositionOnLineProperty(containerShape, pos);
}
peService.setPropertyValue(containerShape, BOUNDARY_EVENT_CANCEL, Boolean.toString(true));
link(containerShape, event);
updatePictogramElement(containerShape);
return containerShape;
}
}