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/*******************************************************************************
* Copyright (c) 2011, 2012 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
*
* @author Ivar Meikas
******************************************************************************/
package org.eclipse.bpmn2.modeler.core.features.gateway;
import org.eclipse.bpmn2.Gateway;
import org.eclipse.bpmn2.modeler.core.features.AbstractBpmn2AddFeature;
import org.eclipse.bpmn2.modeler.core.features.GraphitiConstants;
import org.eclipse.bpmn2.modeler.core.features.label.AddShapeLabelFeature;
import org.eclipse.bpmn2.modeler.core.utils.AnchorUtil;
import org.eclipse.bpmn2.modeler.core.utils.FeatureSupport;
import org.eclipse.bpmn2.modeler.core.utils.ShapeDecoratorUtil;
import org.eclipse.bpmn2.modeler.core.utils.StyleUtil;
import org.eclipse.graphiti.features.IAddFeature;
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.pictograms.ContainerShape;
import org.eclipse.graphiti.mm.pictograms.PictogramElement;
import org.eclipse.graphiti.mm.pictograms.Shape;
public abstract class AddGatewayFeature<T extends Gateway>
extends AbstractBpmn2AddFeature<T> {
public AddGatewayFeature(IFeatureProvider fp) {
super(fp);
}
public IAddFeature getAddLabelFeature(IFeatureProvider fp) {
return new AddShapeLabelFeature(fp);
}
@Override
public boolean canAdd(IAddContext context) {
return FeatureSupport.isValidFlowElementTarget(context);
}
@Override
public PictogramElement add(IAddContext context) {
T businessObject = getBusinessObject(context);
int width = this.getWidth(context);
int height = this.getHeight(context);
// for backward compatibility with older files that included
// the label height in the figure height
if (width!=height) {
width = height = Math.min(width, height);
}
adjustLocation(context, width, height);
int x = context.getX();
int y = context.getY();
// Create a container for the gateway-symbol
final ContainerShape containerShape = peService.createContainerShape(context.getTargetContainer(), true);
final Rectangle gatewayRect = gaService.createInvisibleRectangle(containerShape);
gaService.setLocationAndSize(gatewayRect, x, y, width, height);
Shape gatewayShape = peService.createShape(containerShape, false);
Polygon gatewayPolygon = ShapeDecoratorUtil.createGateway(gatewayShape, width, height);
StyleUtil.applyStyle(gatewayPolygon, businessObject);
gaService.setLocationAndSize(gatewayPolygon, 0, 0, width, height);
boolean isImport = context.getProperty(GraphitiConstants.IMPORT_PROPERTY) != null;
createDIShape(containerShape, businessObject, !isImport);
// hook for subclasses to inject extra code
decorateShape(context, containerShape, businessObject);
peService.createChopboxAnchor(containerShape);
splitConnection(context, containerShape);
return containerShape;
}
}
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