/*******************************************************************************
* 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.gateway;
import org.eclipse.bpmn2.FlowElementsContainer;
import org.eclipse.bpmn2.Gateway;
import org.eclipse.bpmn2.modeler.core.features.AbstractBpmnAddFeature;
import org.eclipse.bpmn2.modeler.core.features.BusinessObjectUtil;
import org.eclipse.bpmn2.modeler.core.features.UpdateBaseElementNameFeature;
import org.eclipse.bpmn2.modeler.core.utils.AnchorUtil;
import org.eclipse.bpmn2.modeler.core.utils.FeatureSupport;
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.Polygon;
import org.eclipse.graphiti.mm.algorithms.Rectangle;
import org.eclipse.graphiti.mm.algorithms.Text;
import org.eclipse.graphiti.mm.algorithms.styles.Orientation;
import org.eclipse.graphiti.mm.pictograms.ContainerShape;
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.IPeService;
public class DefaultAddGatewayFeature extends AbstractBpmnAddFeature {
public DefaultAddGatewayFeature(IFeatureProvider fp) {
super(fp);
}
@Override
public boolean canAdd(IAddContext context) {
boolean intoDiagram = context.getTargetContainer().equals(getDiagram());
boolean intoLane = FeatureSupport.isTargetLane(context) && FeatureSupport.isTargetLaneOnTop(context);
boolean intoParticipant = FeatureSupport.isTargetParticipant(context);
boolean intoFlowELementContainer = BusinessObjectUtil.containsElementOfType(context.getTargetContainer(),
FlowElementsContainer.class);
return intoDiagram || intoLane || intoParticipant || intoFlowELementContainer;
}
@Override
public PictogramElement add(IAddContext context) {
Gateway addedGateway = (Gateway) context.getNewObject();
IGaService gaService = Graphiti.getGaService();
IPeService peService = Graphiti.getPeService();
int d = 2 * GraphicsUtil.GATEWAY_RADIUS;
int p = GraphicsUtil.GATEWAY_TEXT_AREA;
ContainerShape containerShape = peService.createContainerShape(context.getTargetContainer(), true);
Rectangle rect = gaService.createInvisibleRectangle(containerShape);
gaService.setLocationAndSize(rect, context.getX(), context.getY(), d, d + p);
Shape gatewayShape = peService.createShape(containerShape, false);
Polygon gateway = GraphicsUtil.createGateway(gatewayShape);
StyleUtil.applyBGStyle(gateway, this);
gaService.setLocationAndSize(gateway, 0, 0, d, d);
decorateGateway(containerShape);
Shape textShape = peService.createShape(containerShape, false);
peService.setPropertyValue(textShape, UpdateBaseElementNameFeature.TEXT_ELEMENT, Boolean.toString(true));
Text text = gaService.createDefaultText(getDiagram(), textShape, addedGateway.getName());
text.setStyle(StyleUtil.getStyleForText(getDiagram()));
text.setHorizontalAlignment(Orientation.ALIGNMENT_CENTER);
text.setVerticalAlignment(Orientation.ALIGNMENT_TOP);
gaService.setLocationAndSize(text, 0, d, d, p);
createDIShape(containerShape, addedGateway);
peService.createChopboxAnchor(containerShape);
AnchorUtil.addFixedPointAnchors(containerShape, gateway);
layoutPictogramElement(containerShape);
return containerShape;
}
protected void decorateGateway(ContainerShape container) {
}
}