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/*****************************************************************************
* Copyright (c) 2010 CEA
*
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Atos Origin - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.sequence.edit.policies;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.draw2d.geometry.PrecisionRectangle;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.emf.common.util.EList;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.commands.UnexecutableCommand;
import org.eclipse.gef.requests.ChangeBoundsRequest;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IBorderItemEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.BorderItemSelectionEditPolicy;
import org.eclipse.gmf.runtime.diagram.ui.figures.IBorderItemLocator;
import org.eclipse.gmf.runtime.notation.Bounds;
import org.eclipse.gmf.runtime.notation.Node;
import org.eclipse.papyrus.uml.diagram.sequence.edit.parts.DurationConstraintEditPart;
import org.eclipse.papyrus.uml.diagram.sequence.util.OccurrenceSpecificationMoveHelper;
import org.eclipse.uml2.uml.DurationConstraint;
import org.eclipse.uml2.uml.Element;
import org.eclipse.uml2.uml.ExecutionOccurrenceSpecification;
import org.eclipse.uml2.uml.ExecutionSpecification;
/**
* Edit policy to restrict border item movement. This edit policy moves the related events when a Time/Duration Observation/Constraint is moved.
*/
public class TimeRelatedSelectionEditPolicy extends BorderItemSelectionEditPolicy {
@Override
protected Command getMoveCommand(ChangeBoundsRequest request) {
updateRequest(request);
// Prepare request
if (getHost() instanceof IBorderItemEditPart) {
OccurrenceSpecificationMoveHelper.prepareTimeRelatedElementMoveRequest(request, (IBorderItemEditPart) getHost());
}
// In fact, BorderItem can not be moved out of parent bounds, so the moveDelta if not correctly when move out parent.
Command command = super.getMoveCommand(request);
if (command != null) {
if (invalidMoveDurationConstraint(request.getMoveDelta())) {
return UnexecutableCommand.INSTANCE;
}
command = OccurrenceSpecificationMoveHelper.completeMoveTimeRelatedElementCommand(command, request, getHost(), getHostFigure());
}
return command;
}
/**
* Bug description:
* When we move down the Duration Constraint which attached to a Execution Specification, the Execution Specification can be moved out it's Parent
* Execution Specification. This would not happen when move Execution Specification directly.
*
* At present, we just avoid this kind of moving.
*/
private boolean invalidMoveDurationConstraint(Point moveDelta) {
if (!(getHost() instanceof DurationConstraintEditPart) || moveDelta == null || moveDelta.y == 0) {
return false;
}
DurationConstraintEditPart editPart = (DurationConstraintEditPart) getHost();
DurationConstraint durationConstraint = (DurationConstraint) editPart.resolveSemanticElement();
EList<Element> constrainedElements = durationConstraint.getConstrainedElements();
List<ExecutionSpecification> executions = new ArrayList<>();
for (Element element : constrainedElements) {
if (!(element instanceof ExecutionOccurrenceSpecification)) {
continue;
}
ExecutionSpecification execution = ((ExecutionOccurrenceSpecification) element).getExecution();
if (execution != null && !executions.contains(execution)) {
executions.add(execution);
}
}
if (executions.isEmpty()) {
return false;
}
// LifelineEditPart lifelineEditPart = (LifelineEditPart)getHost().getParent();
// for(ExecutionSpecification executionSpecification : executions) {
// Collection<Setting> settings = CacheAdapter.getInstance().getNonNavigableInverseReferences(executionSpecification);
// for(Setting ref : settings) {
// if(NotationPackage.eINSTANCE.getView_Element().equals(ref.getEStructuralFeature())) {
// View view = (View)ref.getEObject();
// EditPart part = DiagramEditPartsUtil.getEditPartFromView(view, getHost());
// if(!(part instanceof ShapeNodeEditPart)) {
// continue;
// }
// Rectangle childBounds = ((ShapeNodeEditPart)part).getFigure().getBounds().getCopy();
// List<ShapeNodeEditPart> toCheckExecutionSpecificationList = new ArrayList<ShapeNodeEditPart>(lifelineEditPart.getChildShapeNodeEditPart());
// toCheckExecutionSpecificationList.remove(part);
// ShapeNodeEditPart parent = LifelineXYLayoutEditPolicy.getParent(lifelineEditPart, childBounds, toCheckExecutionSpecificationList);
// if(parent != null) {
// Rectangle parentBounds = parent.getFigure().getBounds().getCopy();
// if(childBounds.y + moveDelta.y >= parentBounds.bottom() - 1) {
// return true;
// }
// }
// }
// }
// }
return true;
}
/**
* By default, the IBorderItemEditPart can not be moved out of the parent.
*
* @param request
*/
private void updateRequest(ChangeBoundsRequest request) {
IBorderItemEditPart borderItemEP = (IBorderItemEditPart) getHost();
IBorderItemLocator borderItemLocator = borderItemEP.getBorderItemLocator();
if (borderItemLocator != null) {
Rectangle initialFeedbackBounds = getInitialFeedbackBounds();
PrecisionRectangle rect = new PrecisionRectangle(initialFeedbackBounds.getCopy());
getHostFigure().translateToAbsolute(rect);
rect.translate(request.getMoveDelta());
rect.resize(request.getSizeDelta());
getHostFigure().translateToRelative(rect);
Rectangle realLocation = borderItemLocator.getValidLocation(rect.getCopy(), borderItemEP.getFigure());
Point parentOrigin = borderItemEP.getFigure().getParent().getBounds().getTopLeft();
Dimension d = realLocation.getTopLeft().getDifference(parentOrigin);
Point newLocation = new Point(d.width, d.height);
if (getHost().getModel() instanceof Node && ((Node) getHost().getModel()).getLayoutConstraint() instanceof Bounds) {
Bounds bounds = (Bounds) ((Node) getHost().getModel()).getLayoutConstraint();
Point moveDelta = request.getMoveDelta();
moveDelta.x = newLocation.x - bounds.getX();
moveDelta.y = newLocation.y - bounds.getY();
}
}
}
@Override
protected void showChangeBoundsFeedback(ChangeBoundsRequest request) {
if (getHost() instanceof IBorderItemEditPart) {
OccurrenceSpecificationMoveHelper.prepareTimeRelatedElementMoveRequest(request, (IBorderItemEditPart) getHost());
}
super.showChangeBoundsFeedback(request);
}
}
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