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/*****************************************************************************
* Copyright (c) 2017, 2018 CEA LIST, EclipseSource, Christian W. Damus, and others.
*
* All rights reserved. This program and the accompanying materials
* are 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:
* CEA LIST - Initial API and implementation
* EclipseSource - Bug 533770
* Christian W. Damus - bug 533676
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.sequence.referencialgrilling;
import java.util.List;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.draw2d.geometry.PrecisionRectangle;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gef.Request;
import org.eclipse.gef.RequestConstants;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.editpolicies.GraphicalEditPolicy;
import org.eclipse.gef.requests.ChangeBoundsRequest;
import org.eclipse.gmf.runtime.common.core.command.CompositeCommand;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.emf.core.util.EObjectAdapter;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.infra.gmfdiag.common.helper.NotationHelper;
import org.eclipse.papyrus.uml.diagram.sequence.command.SetResizeAndLocationCommand;
import org.eclipse.papyrus.uml.diagram.sequence.validation.AsyncValidateCommand;
import org.eclipse.uml2.uml.InteractionOperand;
/**
* This class is used to allow the resize and adding of children of the combined Fragment
*
*/
public class ResizeOperandEditPolicy extends GraphicalEditPolicy {
/**
* @see org.eclipse.gef.editpolicies.AbstractEditPolicy#activate()
*
*/
@Override
public void activate() {
super.activate();
}
/**
* @see org.eclipse.gef.editpolicies.AbstractEditPolicy#activate()
*
*/
@Override
public void deactivate() {
super.activate();
}
/**
* Factors incoming requests into various specific methods.
*
* @see org.eclipse.gef.EditPolicy#getCommand(Request)
*/
@Override
public Command getCommand(Request request) {
if (RequestConstants.REQ_RESIZE_CHILDREN.equals(request.getType())) {
CompositeCommand compositeCommand = new CompositeCommand("Resize Operands");
ChangeBoundsRequest changeBoundsRequest = (ChangeBoundsRequest) request;
List<?> editParts = changeBoundsRequest.getEditParts();
// the user can resize only one InteractionOperand
if (editParts.size() > 1) {
return null;
}
TransactionalEditingDomain editingDomain = getEditingDomain();
Object currentEditPart = editParts.get(0);
updateCurrentChildSize(compositeCommand, changeBoundsRequest, editingDomain, currentEditPart);
if (!compositeCommand.isEmpty() && (currentEditPart instanceof IGraphicalEditPart)
&& compositeCommand.canExecute()) {
EObject object = ((IGraphicalEditPart) currentEditPart).resolveSemanticElement();
if (object instanceof InteractionOperand) {
InteractionOperand operand = (InteractionOperand) object;
// In case the containment of interaction fragments changes, validate
AsyncValidateCommand.get(operand).ifPresent(compositeCommand::add);
}
}
return new ICommandProxy(compositeCommand);
}
return null;
}
protected TransactionalEditingDomain getEditingDomain() {
TransactionalEditingDomain editingDomain = ((IGraphicalEditPart) getHost()).getEditingDomain();
return editingDomain;
}
private void updateCurrentChildSize(CompositeCommand compositeCommand, ChangeBoundsRequest changeBoundsRequest, TransactionalEditingDomain editingDomain, Object currentEditPart) {
IGraphicalEditPart operandPart = (IGraphicalEditPart) currentEditPart;
View shapeView = NotationHelper.findView(operandPart);
// Dimension size = operandPart.getFigure().getSize();
// Point location = operandPart.getFigure().getBounds().getLocation().getCopy();
Dimension sizeDelta = changeBoundsRequest.getSizeDelta().getCopy();
Point moveDelta = changeBoundsRequest.getMoveDelta().getCopy();
// Take zoom into account; the request contains absolute mouse coordinates delta.
IFigure operandFigure = operandPart.getFigure();
PrecisionRectangle bounds = new PrecisionRectangle(operandFigure.getBounds());
operandFigure.translateToAbsolute(bounds);
bounds.resize(sizeDelta);
bounds.translate(moveDelta);
operandFigure.translateToRelative(bounds);
// Set the new bounds, relative to the parent (CombinedFragment), to make
// sure the notation is consistent with the visuals. We should get x = 0; y = Sum(sizeOf(previousOperands)); width = width(CF)
IFigure cfFigure = ((IGraphicalEditPart) operandPart.getParent()).getFigure();
bounds.translate(cfFigure.getBounds().getTopLeft().getNegated());
ICommand setBoundsCommand = new SetResizeAndLocationCommand(editingDomain, "Resize Operands", new EObjectAdapter(shapeView), bounds);
compositeCommand.add(setBoundsCommand);
}
}
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