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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
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.sequence.edit.policies;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Map.Entry;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.gef.ConnectionEditPart;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.GraphicalEditPart;
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.commands.UnexecutableCommand;
import org.eclipse.gef.editpolicies.GraphicalEditPolicy;
import org.eclipse.gef.requests.ChangeBoundsRequest;
import org.eclipse.gef.requests.ReconnectRequest;
import org.eclipse.gmf.runtime.diagram.ui.editparts.DiagramEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editparts.DiagramRootEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.notation.Bounds;
import org.eclipse.gmf.runtime.notation.Node;
import org.eclipse.papyrus.uml.diagram.sequence.edit.parts.AbstractExecutionSpecificationEditPart;
import org.eclipse.papyrus.uml.diagram.sequence.edit.parts.CLifeLineEditPart;
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.referencialgrilling.BoundForEditPart;
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;
/**
* this editpolicy is to manage the movement of message on node as lifeline
* It is like a graphical node
*
* @since 4.0
*
*/
public class UpdateNodeReferenceEditPolicy extends GraphicalEditPolicy {
public static String UDPATE_NODE_REFERENCE = "UdpateNodeReferenceEditPolicy"; //$NON-NLS-1$
/**
* To extract in other EditPolicy
*
* @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 B (anchor of the message)-->
* Move E and Move F this is a move of the execution specification
* <LI>when move C (anchor of the message)-->move F but not move E this is a resize of the execution specification
* <UL>
*/
@Override
public Command getCommand(Request request) {
if (request instanceof ReconnectRequest && !(SenderRequestUtils.isASender(request, getHost()))) {
final ReconnectRequest reconnectRequest = (ReconnectRequest) request;
final ConnectionEditPart linkEditPart = reconnectRequest.getConnectionEditPart();
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "+ MOVE ANCHORS of " + linkEditPart.getClass().getName());//$NON-NLS-1$
Point locationOnDiagram = CoordinateReferentialUtils.transformPointFromScreenToDiagramReferential(reconnectRequest.getLocation(), (GraphicalViewer) getHost().getViewer());
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "+-- LocationOnDiagram " + locationOnDiagram);//$NON-NLS-1$
if (linkEditPart.getEditPolicy(SequenceReferenceEditPolicy.SEQUENCE_REFERENCE) != null) {
final SequenceReferenceEditPolicy references = (SequenceReferenceEditPolicy) linkEditPart.getEditPolicy(SequenceReferenceEditPolicy.SEQUENCE_REFERENCE);
final CompoundCommand compoundCommand = new CompoundCommand();
for (Entry<EditPart, String> iterator : references.getStrongReferences().entrySet()) {
final EditPart editPart = iterator.getKey();
if (!SenderRequestUtils.isASender(request, editPart) && getHost().getChildren().contains(editPart)) {
final GraphicalEditPart gEditPart = (GraphicalEditPart) editPart;
final Point GEPlocationOnDiagram = CoordinateReferentialUtils.getFigurePositionRelativeToDiagramReferential(gEditPart.getFigure(), getDiagramEditPart(getHost()));
locationOnDiagram = CoordinateReferentialUtils.transformPointFromScreenToDiagramReferential(SequenceUtil.getSnappedLocation(gEditPart, reconnectRequest.getLocation().getCopy()), (GraphicalViewer) getHost().getViewer());
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "+--> try to Move from " + GEPlocationOnDiagram + " " + editPart.getClass().getName()); //$NON-NLS-1$ //$NON-NLS-2$
final ChangeBoundsRequest changeBoundsRequest = new ChangeBoundsRequest(RequestConstants.REQ_RESIZE);
changeBoundsRequest.setLocation(reconnectRequest.getLocation().getCopy());
changeBoundsRequest.setEditParts(editPart);
if (iterator.getValue().equals(SequenceReferenceEditPolicy.ROLE_START)) {
final int delta = (locationOnDiagram.y() - GEPlocationOnDiagram.y());
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "+--> Delta " + delta + " " + editPart.getClass().getName()); //$NON-NLS-1$ //$NON-NLS-2$
changeBoundsRequest.setMoveDelta(new Point(0, delta));
changeBoundsRequest.setSizeDelta(new Dimension(0, 0));
}
if (iterator.getValue().equals(SequenceReferenceEditPolicy.ROLE_FINISH)) {
final int delta = (locationOnDiagram.y() - GEPlocationOnDiagram.y() - gEditPart.getFigure().getBounds().height);
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "+--> Delta " + delta + " " + editPart.getClass().getName());//$NON-NLS-1$ //$NON-NLS-2$
changeBoundsRequest.setMoveDelta(new Point(0, delta));
changeBoundsRequest.setSizeDelta(new Dimension(0, 0));
}
final ArrayList<EditPart> senderList = SenderRequestUtils.getSenders(request);
SenderRequestUtils.addRequestSenders(changeBoundsRequest, senderList);
SenderRequestUtils.addRequestSender(changeBoundsRequest, linkEditPart);
final Command cmd = editPart.getCommand(changeBoundsRequest);
compoundCommand.add(cmd);
}
}
if (!compoundCommand.isEmpty()) {
return compoundCommand;
}
}
// Manage the strong references if this is a change bounds request
} else if (request instanceof ChangeBoundsRequest && (!org.eclipse.gmf.runtime.diagram.ui.requests.RequestConstants.REQ_AUTOSIZE.equals(request.getType()))) {
final ChangeBoundsRequest initialChangeBoundsRequest = (ChangeBoundsRequest) request;
final Iterator<?> editParts = initialChangeBoundsRequest.getEditParts().iterator();
// The reparent of execution specification in another life line is not allowed
while(editParts.hasNext()) {
Object childEP = editParts.next();
if(childEP instanceof AbstractExecutionSpecificationEditPart && getHost() instanceof CLifeLineEditPart) {
final LifelineEditPart parentLifeLine = SequenceUtil.getParentLifelinePart((AbstractExecutionSpecificationEditPart)childEP);
if (null != parentLifeLine && !parentLifeLine.equals(getHost())) {
return UnexecutableCommand.INSTANCE;
}
}
}
final Point moveDelta = initialChangeBoundsRequest.getMoveDelta();
final CompoundCommand compoundCommand = new CompoundCommand();
if (moveDelta.y != 0) {
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "+ MOVE delta " + moveDelta + " of " + getHost());//$NON-NLS-1$ //$NON-NLS-2$
// The variables needed to check the possible resize of life lines
int maxY = -1;
EditPart editPartSaved = null;
for (final Object changedEditPart : initialChangeBoundsRequest.getEditParts()) {
if (changedEditPart instanceof AbstractExecutionSpecificationEditPart) {
final AbstractExecutionSpecificationEditPart execSpecEditPart = (AbstractExecutionSpecificationEditPart) changedEditPart;
editPartSaved = execSpecEditPart;
if(((EditPart) changedEditPart).getEditPolicy(SequenceReferenceEditPolicy.SEQUENCE_REFERENCE) != null) {
if (!SenderRequestUtils.isASender(request, execSpecEditPart)) {
final SequenceReferenceEditPolicy references = (SequenceReferenceEditPolicy) execSpecEditPart.getEditPolicy(SequenceReferenceEditPolicy.SEQUENCE_REFERENCE);
for (EditPart editPart : references.getStrongReferences().keySet()) {
if (!SenderRequestUtils.isASender(request, editPart) && editPart instanceof GraphicalEditPart && editPart.getModel() instanceof Node) {
final Bounds initialBoundStrongRef = BoundForEditPart.getBounds((Node)editPart.getModel());
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "+--> try to Move " + editPart.getClass().getName());//$NON-NLS-1$
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "+--> try to Move from " + initialBoundStrongRef.getY() + " " + editPart.getClass().getName()); //$NON-NLS-1$ //$NON-NLS-2$
ChangeBoundsRequest changeBoundsRequest = new ChangeBoundsRequest(RequestConstants.REQ_RESIZE);
changeBoundsRequest.setLocation(new Point(initialBoundStrongRef.getX(), initialBoundStrongRef.getY()));
changeBoundsRequest.setEditParts(editPart);
UMLDiagramEditorPlugin.log.trace(LogOptions.SEQUENCE_DEBUG, "+--> Delta " + moveDelta.y + " " + editPart.getClass().getName()); //$NON-NLS-1$ //$NON-NLS-2$
changeBoundsRequest.setMoveDelta(new Point(0, moveDelta.y));
changeBoundsRequest.setSizeDelta(new Dimension(0, 0));
final ArrayList<EditPart> senderList = SenderRequestUtils.getSenders(request);
SenderRequestUtils.addRequestSenders(changeBoundsRequest, senderList);
SenderRequestUtils.addRequestSender(changeBoundsRequest, execSpecEditPart);
final Command cmd = editPart.getCommand(changeBoundsRequest);
compoundCommand.add(cmd);
// If the move delta is going down, keep the maximum Y of the execution specification
if (moveDelta.y > 0) {
// The magical number '15' is here to define the Life line header height
// TODO : We need to remove this magical number
if (maxY < initialBoundStrongRef.getY() + initialBoundStrongRef.getHeight() + changeBoundsRequest.getMoveDelta().y + 15) {
maxY = initialBoundStrongRef.getY() + initialBoundStrongRef.getHeight() + changeBoundsRequest.getMoveDelta().y + 15;
}
}
}
}
}
}
// If the move delta is going down, keep the maximum Y of the execution specification
if (moveDelta.y > 0) {
final Bounds initialBoundStrongRef = BoundForEditPart.getBounds((Node)execSpecEditPart.getModel());
// The magical number '15' is here to define the Life line header height
// TODO : We need to remove this magical number
if (maxY < initialBoundStrongRef.getY() + initialBoundStrongRef.getHeight() + moveDelta.y + 15) {
maxY = initialBoundStrongRef.getY() + initialBoundStrongRef.getHeight() + moveDelta.y + 15;
}
}
}
}
// Check if this is needed to resize life lines
if(null != editPartSaved && maxY > 0) {
final CompoundCommand resizeCompoundCommand = new CompoundCommand("Resize life lines"); //$NON-NLS-1$
LifelineEditPartUtil.resizeAllLifeLines(resizeCompoundCommand, editPartSaved, maxY, null);
if(!resizeCompoundCommand.isEmpty()) {
compoundCommand.add(resizeCompoundCommand);
}
}
}
if (!compoundCommand.isEmpty()) {
return compoundCommand;
}
}
return super.getCommand(request);
}
/**
* Walks up the editpart hierarchy to find and return the
* <code>TopGraphicEditPart</code> instance.
*/
public DiagramEditPart getDiagramEditPart(EditPart editPart) {
while (editPart instanceof IGraphicalEditPart) {
if (editPart instanceof DiagramEditPart) {
return (DiagramEditPart) editPart;
}
editPart = editPart.getParent();
}
if (editPart instanceof DiagramRootEditPart) {
return (DiagramEditPart) ((DiagramRootEditPart) editPart).getChildren().get(0);
}
return null;
}
}
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