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/*****************************************************************************
* Copyright s(c) 2017 CEA LIST 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
* Mickaël ADAM (ALL4TEC) mickael.adam@all4tec.net - Bug 526191, 526462, 526628, 526803
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.sequence.edit.policies;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gef.ConnectionEditPart;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.GraphicalViewer;
import org.eclipse.gef.Request;
import org.eclipse.gef.RequestConstants;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.commands.CompoundCommand;
import org.eclipse.gef.requests.ReconnectRequest;
import org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.requests.CreateConnectionViewAndElementRequest;
import org.eclipse.gmf.runtime.draw2d.ui.figures.PolylineConnectionEx;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.uml.diagram.common.editparts.RoundedCompartmentEditPart;
import org.eclipse.papyrus.uml.diagram.sequence.edit.parts.AbstractExecutionSpecificationEditPart;
import org.eclipse.papyrus.uml.diagram.sequence.edit.parts.AbstractMessageEditPart;
import org.eclipse.papyrus.uml.diagram.sequence.edit.parts.LifelineEditPart;
import org.eclipse.papyrus.uml.diagram.sequence.part.UMLDiagramEditorPlugin;
import org.eclipse.papyrus.uml.diagram.sequence.util.CoordinateReferentialUtils;
import org.eclipse.papyrus.uml.diagram.sequence.util.LifelineEditPartUtil;
import org.eclipse.papyrus.uml.diagram.sequence.util.LogOptions;
import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceUtil;
import org.eclipse.uml2.uml.ExecutionSpecification;
import org.eclipse.uml2.uml.Message;
import org.eclipse.uml2.uml.OccurrenceSpecification;
/**
* this editpolicy is to manage the movement of Execution specification and update move of messages
* It is like a graphical node
*
* @since 4.0
*
*/
public class UpdateWeakReferenceForMessageSpecEditPolicy extends UpdateWeakReferenceEditPolicy {
public static final String UDPATE_WEAK_REFERENCE_FOR_MESSAGE = "UpdateWeakReferenceForMessageSpecEditPolicy"; //$NON-NLS-1$
/**
* @see org.eclipse.gef.editpolicies.AbstractEditPolicy#getCommand(org.eclipse.gef.Request)
*
* @param request
* @return
*
* <img src="../../../../../../../../../icons/sequenceScheme.png" width="250" />
* <UL>
* <LI>when move E --> move B on the coordinate Y of E and move A on the coordinate Y of E
* <LI>when Move F (execution specification) (resize)--> move C on the coordinate of C of F and move D on the coordinate of Y of F
* <LI>Move E and F (execution specification) move the execution--> move B on the coordinate of Y of E and move A on the coordinate of Y of E and move C on the coordinate of C of F and move D on the coordinate of Y of F
* <UL>
*
*/
@Override
public Command getCommand(Request request) {
Command command = null;
if (!(SenderRequestUtils.isASender(request, getHost()))) {
if (request instanceof ReconnectRequest) {
command = getUpdateWeakRefForMessageReconnect((ReconnectRequest) request);
} else if (request instanceof CreateConnectionViewAndElementRequest) {
command = getUpdateWeakRefForMessageCreate((CreateConnectionViewAndElementRequest) request);
}
}
return null == command ? super.getCommand(request) : command;
}
/**
* Get the command to update weak references of the message for a creation.
*
* @param request
* the create connection view and element request
* @return the command
*/
@SuppressWarnings("unchecked")
private Command getUpdateWeakRefForMessageCreate(final CreateConnectionViewAndElementRequest request) {
Command command = null;
CreateConnectionViewAndElementRequest createRequest = request;
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "Message creation request at:" + ((IAdaptable) getHost()).getAdapter(View.class).getElement());
// Snap to grid Location
createRequest.setLocation(SequenceUtil.getSnappedLocation(getHost(), createRequest.getLocation()));
// Get the location on screen
Point reqlocationOnScreen = createRequest.getLocation().getCopy();
getHostFigure().getParent().translateToRelative(reqlocationOnScreen);
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "=> Request Location on screen: " + reqlocationOnScreen);
List<OccurrenceSpecification> nextEventsFromPosition = new ArrayList<>();
List<OccurrenceSpecification> previousEventsFromPosition = new ArrayList<>();
// Get next and previous event from the lifeline source
EditPart sourceEditPart = createRequest.getSourceEditPart();
if (sourceEditPart instanceof LifelineEditPart) {
nextEventsFromPosition.addAll(LifelineEditPartUtil.getNextEventsFromPosition(reqlocationOnScreen, (LifelineEditPart) sourceEditPart));
previousEventsFromPosition.addAll(LifelineEditPartUtil.getPreviousEventsFromPosition(new Point(reqlocationOnScreen.x, reqlocationOnScreen.y + deltaMoveAtCreationAndDeletion),
(LifelineEditPart) sourceEditPart));
}
// Get next and previous event from the lifeline target
EditPart targetEditPart = createRequest.getTargetEditPart();
if (targetEditPart instanceof LifelineEditPart) {
nextEventsFromPosition.addAll(LifelineEditPartUtil.getNextEventsFromPosition(reqlocationOnScreen, (LifelineEditPart) targetEditPart));
previousEventsFromPosition.addAll(LifelineEditPartUtil.getPreviousEventsFromPosition(new Point(reqlocationOnScreen.x, reqlocationOnScreen.y + deltaMoveAtCreationAndDeletion),
(LifelineEditPart) targetEditPart));
}
if (!nextEventsFromPosition.isEmpty()) {
CompoundCommand compoundCommand = new CompoundCommand();
// get the list of element just below new created message
nextEventsFromPosition.retainAll(previousEventsFromPosition);
// For each next event below
for (OccurrenceSpecification nextEvent : nextEventsFromPosition) {
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "\tNext Event: " + nextEvent);
GraphicalEditPart sourceLifeLineEP = (GraphicalEditPart) createRequest.getSourceEditPart();
GraphicalEditPart targetLifeLineEP = (GraphicalEditPart) createRequest.getTargetEditPart();
ArrayList<EditPart> senderList = SenderRequestUtils.getSenders(request);
List<?> connectionsAndChildren = new ArrayList<>();
if (null != sourceLifeLineEP) {
connectionsAndChildren.addAll(sourceLifeLineEP.getSourceConnections());
connectionsAndChildren.addAll(sourceLifeLineEP.getTargetConnections());
connectionsAndChildren.addAll(sourceLifeLineEP.getChildren());
}
if (null != targetLifeLineEP) {
connectionsAndChildren.addAll(targetLifeLineEP.getSourceConnections());
connectionsAndChildren.addAll(targetLifeLineEP.getTargetConnections());
connectionsAndChildren.addAll(targetLifeLineEP.getChildren());
}
for (Object editPart : connectionsAndChildren) {
if (editPart instanceof ConnectionEditPart) {
EObject element = ((View) ((AbstractMessageEditPart) editPart).getAdapter(View.class)).getElement();
if (element instanceof Message && null != ((Message) element).getSendEvent() && ((Message) element).getSendEvent().equals(nextEvent)
|| element instanceof Message && null != ((Message) element).getReceiveEvent() && ((Message) element).getReceiveEvent().equals(nextEvent)) {
// compute Delta
Point moveDelta = new Point(0, 0);
PolylineConnectionEx polyline = (PolylineConnectionEx) ((ConnectionEditPart) editPart).getFigure();
Point anchorPositionOnScreen;
if (((Message) element).getSendEvent().equals(nextEvent)) {
anchorPositionOnScreen = polyline.getTargetAnchor().getReferencePoint();
} else {
anchorPositionOnScreen = polyline.getSourceAnchor().getReferencePoint();
}
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "\t\tanchorPositionOnScreen:\t" + anchorPositionOnScreen);
Point newLocation = new Point(0, createRequest.getLocation().y + deltaMoveAtCreationAndDeletion);
newLocation = SequenceUtil.getSnappedLocation(getHost(), newLocation);
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "\t\tNew location to be set:\t" + newLocation);
moveDelta.y = newLocation.y - anchorPositionOnScreen.y;
// add move source and target request
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "\t\tMoveDela:\t\t" + moveDelta.y);
moveTargetConnectionEditPart(null, moveDelta, compoundCommand, (ConnectionEditPart) editPart, senderList);
moveSourceConnectionEditPart(null, moveDelta, compoundCommand, (ConnectionEditPart) editPart, senderList);
}
} else if (editPart instanceof AbstractExecutionSpecificationEditPart) {
EObject element = ((View) ((AbstractExecutionSpecificationEditPart) editPart).getAdapter(View.class)).getElement();
if (element instanceof ExecutionSpecification && null != ((ExecutionSpecification) element).getStart() && ((ExecutionSpecification) element).getStart().equals(nextEvent)) {
// compute Delta
Point moveDelta = new Point(0, 0);
Point figureLocation = ((AbstractExecutionSpecificationEditPart) editPart).getFigure().getBounds().getLocation();
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "\t\tlocationOfFigure:\t" + figureLocation);
Point newLocation = new Point(0, reqlocationOnScreen.y + deltaMoveAtCreationAndDeletion);
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "\t\tNew location to be set:\t" + newLocation);
moveDelta.y = newLocation.y - figureLocation.y;
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "\t\tMoveDela:\t\t" + moveDelta.y);
moveRoundedEditPart(null, moveDelta, compoundCommand, (EditPart) editPart, senderList);
}
}
}
}
if (!compoundCommand.isEmpty()) {
command = compoundCommand;
}
}
return command;
}
/**
* Get the command to update weak references of the message for a reconnect.
*
* @param request
* the reconnect request
* @return the command
*/
private Command getUpdateWeakRefForMessageReconnect(final ReconnectRequest request) {
CompoundCommand command = null;
ReconnectRequest reconnectRequest = request;
ConnectionEditPart hostConnectionEditPart = reconnectRequest.getConnectionEditPart();
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "+ MOVE ANCHORS of " + hostConnectionEditPart.getClass().getName());//$NON-NLS-1$
Point locationOnDiagram = CoordinateReferentialUtils.transformPointFromScreenToDiagramReferential(reconnectRequest.getLocation(), (GraphicalViewer) getHost().getViewer());
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "+-- LocationOnDiagram " + locationOnDiagram);// $NON-NLS-2$ //$NON-NLS-1$
// compute Delta
Point moveDelta = new Point(0, 0);
PolylineConnectionEx polyline = (PolylineConnectionEx) hostConnectionEditPart.getFigure();
if (RequestConstants.REQ_RECONNECT_TARGET.equals(reconnectRequest.getType())) {
Point anchorPositionOnScreen = polyline.getTargetAnchor().getReferencePoint();
moveDelta.y = reconnectRequest.getLocation().y - anchorPositionOnScreen.y;
} else {
Point anchorPositionOnScreen = polyline.getSourceAnchor().getReferencePoint();
moveDelta.y = reconnectRequest.getLocation().y - anchorPositionOnScreen.y;
}
if (moveDelta.y != 0 && mustMove) {
if (hostConnectionEditPart.getEditPolicy(SequenceReferenceEditPolicy.SEQUENCE_REFERENCE) != null) {
SequenceReferenceEditPolicy references = (SequenceReferenceEditPolicy) hostConnectionEditPart.getEditPolicy(SequenceReferenceEditPolicy.SEQUENCE_REFERENCE);
if (!SenderRequestUtils.isASender(request, getHost())) {
CompoundCommand compoundCommand = new CompoundCommand();
// Gets weak references
HashMap<EditPart, String> weakReferences = new HashMap<>();
if (moveDelta.y > 0 && mustMoveBelowAtMovingDown) {
weakReferences.putAll(references.getWeakReferences());
}
for (Iterator<EditPart> iterator = weakReferences.keySet().iterator(); iterator.hasNext();) {
EditPart editPart = iterator.next();
if (!SenderRequestUtils.isASender(request, editPart)) {
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "+--> try to Move " + editPart);//$NON-NLS-1$
ArrayList<EditPart> senderList = SenderRequestUtils.getSenders(request);
if (editPart instanceof ConnectionEditPart) {
ConnectionEditPart connectionEditPart = (ConnectionEditPart) editPart;
// create the request
if (moveDelta.y > 0) {
// move down, target must be moved before
moveTargetConnectionEditPart(hostConnectionEditPart, moveDelta, compoundCommand, connectionEditPart, senderList);
moveSourceConnectionEditPart(hostConnectionEditPart, moveDelta, compoundCommand, connectionEditPart, senderList);
} else {
// move up, source must be moved before
moveSourceConnectionEditPart(hostConnectionEditPart, moveDelta, compoundCommand, connectionEditPart, senderList);
moveTargetConnectionEditPart(hostConnectionEditPart, moveDelta, compoundCommand, connectionEditPart, senderList);
}
}
if (editPart instanceof RoundedCompartmentEditPart) {
moveRoundedEditPart(hostConnectionEditPart, moveDelta, compoundCommand, editPart, senderList);
}
}
if (!compoundCommand.isEmpty()) {
command = compoundCommand;
}
}
}
}
}
return command;
}
}
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