package org.activiti.designer.features;
import org.activiti.designer.ActivitiImageProvider;
import org.activiti.designer.util.style.StyleUtil;
import org.eclipse.bpmn2.BoundaryEvent;
import org.eclipse.bpmn2.CallActivity;
import org.eclipse.bpmn2.ServiceTask;
import org.eclipse.bpmn2.SubProcess;
import org.eclipse.graphiti.features.IFeatureProvider;
import org.eclipse.graphiti.features.context.IAddContext;
import org.eclipse.graphiti.features.impl.AbstractAddShapeFeature;
import org.eclipse.graphiti.mm.algorithms.Ellipse;
import org.eclipse.graphiti.mm.algorithms.Image;
import org.eclipse.graphiti.mm.pictograms.ContainerShape;
import org.eclipse.graphiti.mm.pictograms.Diagram;
import org.eclipse.graphiti.mm.pictograms.PictogramElement;
import org.eclipse.graphiti.mm.pictograms.Shape;
import org.eclipse.graphiti.services.Graphiti;
import org.eclipse.graphiti.services.IGaService;
import org.eclipse.graphiti.services.IPeCreateService;
public class AddBoundaryErrorFeature extends AbstractAddShapeFeature {
private static final int IMAGE_SIZE = 30;
public AddBoundaryErrorFeature(IFeatureProvider fp) {
super(fp);
}
@Override
public PictogramElement add(IAddContext context) {
final BoundaryEvent addedEvent = (BoundaryEvent) context.getNewObject();
ContainerShape parent = context.getTargetContainer();
int x = context.getX();
int y = context.getY();
Object parentObject = getBusinessObjectForPictogramElement(parent);
if (parentObject instanceof SubProcess) {
if (addedEvent.eResource() == null) {
getDiagram().eResource().getContents().add(addedEvent);
}
x += parent.getGraphicsAlgorithm().getX();
y += parent.getGraphicsAlgorithm().getY();
parent = getDiagram();
} else if(parent.getContainer() != null &&
parent.getContainer() instanceof Diagram == false) {
x += parent.getGraphicsAlgorithm().getX();
y += parent.getGraphicsAlgorithm().getY();
Object containerObject = getBusinessObjectForPictogramElement(parent.getContainer());
if (containerObject instanceof SubProcess) {
parent = parent.getContainer();
}
if (addedEvent.eResource() == null) {
((SubProcess) parentObject).getFlowElements().add(addedEvent);
}
} else {
x += parent.getGraphicsAlgorithm().getX();
y += parent.getGraphicsAlgorithm().getY();
parent = getDiagram();
if (addedEvent.eResource() == null) {
getDiagram().eResource().getContents().add(addedEvent);
}
}
// CONTAINER SHAPE WITH CIRCLE
final IPeCreateService peCreateService = Graphiti.getPeCreateService();
final ContainerShape containerShape = peCreateService.createContainerShape(parent, true);
// check whether the context has a size (e.g. from a create feature)
// otherwise define a default size for the shape
final int width = context.getWidth() <= 0 ? IMAGE_SIZE : context.getWidth();
final int height = context.getHeight() <= 0 ? IMAGE_SIZE : context.getHeight();
final IGaService gaService = Graphiti.getGaService();
Ellipse circle;
{
final Ellipse invisibleCircle = gaService.createEllipse(containerShape);
invisibleCircle.setFilled(false);
invisibleCircle.setLineVisible(false);
gaService.setLocationAndSize(invisibleCircle, x, y, width, height);
// create and set visible circle inside invisible circle
circle = gaService.createEllipse(invisibleCircle);
circle.setParentGraphicsAlgorithm(invisibleCircle);
circle.setStyle(StyleUtil.getStyleForEvent(getDiagram()));
gaService.setLocationAndSize(circle, 0, 0, width, height);
// create link and wire it
link(containerShape, addedEvent);
}
{
Ellipse secondCircle = gaService.createEllipse(circle);
secondCircle.setParentGraphicsAlgorithm(circle);
secondCircle.setStyle(StyleUtil.getStyleForEvent(getDiagram()));
gaService.setLocationAndSize(secondCircle, 3, 3, width - 6, height - 6);
}
{
final Shape shape = peCreateService.createShape(containerShape, false);
final Image image = gaService.createImage(shape, ActivitiImageProvider.IMG_ENDEVENT_ERROR);
gaService.setLocationAndSize(image, (width - IMAGE_SIZE) / 2, (height - IMAGE_SIZE) / 2, IMAGE_SIZE, IMAGE_SIZE);
}
// add a chopbox anchor to the shape
peCreateService.createChopboxAnchor(containerShape);
layoutPictogramElement(containerShape);
return containerShape;
}
@Override
public boolean canAdd(IAddContext context) {
Object parentObject = getBusinessObjectForPictogramElement(context.getTargetContainer());
if (parentObject instanceof SubProcess == false && parentObject instanceof CallActivity == false && parentObject instanceof ServiceTask == false) {
return false;
}
if (context.getNewObject() instanceof BoundaryEvent == false) {
return false;
}
return true;
}
}