/*******************************************************************************
* 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.lane;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.bpmn2.FlowNode;
import org.eclipse.bpmn2.Lane;
import org.eclipse.bpmn2.LaneSet;
import org.eclipse.bpmn2.Process;
import org.eclipse.bpmn2.modeler.core.ModelHandler;
import org.eclipse.bpmn2.modeler.core.utils.FeatureSupport;
import org.eclipse.bpmn2.modeler.core.utils.ModelUtil;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.graphiti.features.IFeatureProvider;
import org.eclipse.graphiti.features.context.IMoveShapeContext;
import org.eclipse.graphiti.features.context.ITargetContext;
import org.eclipse.graphiti.mm.algorithms.GraphicsAlgorithm;
import org.eclipse.graphiti.mm.pictograms.ContainerShape;
import org.eclipse.graphiti.mm.pictograms.Shape;
import org.eclipse.graphiti.services.Graphiti;
import org.eclipse.graphiti.services.IGaService;
public class MoveFromDiagramToLaneFeature extends MoveLaneFeature {
public MoveFromDiagramToLaneFeature(IFeatureProvider fp) {
super(fp);
}
@Override
public boolean canMoveShape(IMoveShapeContext context) {
Lane movedLane = getMovedLane(context);
boolean moveableHasFlowNodes = movedLane.getFlowNodeRefs().size() > 0;
Lane targetLane = getTargetLane(context);
boolean targetHasFlowNodeRefs = targetLane.getFlowNodeRefs().size() > 0;
if (!moveableHasFlowNodes && !targetHasFlowNodeRefs) {
return true;
}
return moveableHasFlowNodes ^ targetHasFlowNodeRefs;
}
@Override
protected void internalMove(IMoveShapeContext context) {
IGaService gaService = Graphiti.getGaService();
Lane movedLane = getMovedLane(context);
GraphicsAlgorithm laneGa = context.getShape().getGraphicsAlgorithm();
Lane targetLane = getTargetLane(context);
GraphicsAlgorithm tga = context.getTargetContainer().getGraphicsAlgorithm();
List<Shape> shapes = getFlowNodeShapes(context, targetLane);
modifyModelStructure(targetLane, movedLane);
if (getNumberOfLanes(context) == 1) {
gaService.setLocationAndSize(laneGa, 15, 0, tga.getWidth() - 15, tga.getHeight());
for (Shape s : shapes) {
Graphiti.getPeService().sendToFront(s);
s.setContainer((ContainerShape) context.getShape());
}
} else {
gaService.setLocationAndSize(laneGa, 15, tga.getHeight() - 1, tga.getWidth() - 15, laneGa.getHeight() + 1);
}
FeatureSupport.redraw(context.getTargetContainer());
}
private void modifyModelStructure(Lane targetLane, Lane lane) {
LaneSet laneSet = (LaneSet) lane.eContainer();
laneSet.getLanes().remove(lane);
if (laneSet.getLanes().size() == 0) {
EObject container = laneSet.eContainer();
if (container instanceof Process) {
Process p = (Process) container;
p.getLaneSets().remove(laneSet);
}
}
if (targetLane.getChildLaneSet() == null) {
LaneSet createLaneSet = ModelHandler.FACTORY.createLaneSet();
// createLaneSet.setId(EcoreUtil.generateUUID());
targetLane.setChildLaneSet(createLaneSet);
ModelUtil.setID(createLaneSet);
}
List<Lane> lanes = targetLane.getChildLaneSet().getLanes();
lanes.add(lane);
if (lanes.size() == 1) {
List<FlowNode> flowNodeRefs = targetLane.getFlowNodeRefs();
for (FlowNode flowNode : flowNodeRefs) {
flowNode.getLanes().add(lane);
}
targetLane.getFlowNodeRefs().clear();
}
}
private List<Shape> getFlowNodeShapes(IMoveShapeContext context, Lane lane) {
List<FlowNode> nodes = lane.getFlowNodeRefs();
List<Shape> shapes = new ArrayList<Shape>();
for (Shape s : context.getTargetContainer().getChildren()) {
Object bo = getBusinessObjectForPictogramElement(s);
if (bo != null && nodes.contains(bo)) {
shapes.add(s);
}
}
return shapes;
}
private int getNumberOfLanes(ITargetContext context) {
ContainerShape targetContainer = context.getTargetContainer();
Lane lane = (Lane) getBusinessObjectForPictogramElement(targetContainer);
return lane.getChildLaneSet().getLanes().size();
}
private Lane getTargetLane(IMoveShapeContext context) {
ContainerShape targetContainer = context.getTargetContainer();
return (Lane) getBusinessObjectForPictogramElement(targetContainer);
}
}