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/*****************************************************************************
* Copyright (c) 2012 CEA LIST.
*
*
* 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
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.timing.custom.edit.policies;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.draw2d.ColorConstants;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.RectangleFigure;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.emf.transaction.util.TransactionUtil;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.EditPolicy;
import org.eclipse.gef.GraphicalEditPart;
import org.eclipse.gef.Request;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.commands.CompoundCommand;
import org.eclipse.gef.commands.UnexecutableCommand;
import org.eclipse.gef.editpolicies.NonResizableEditPolicy;
import org.eclipse.gef.requests.ChangeBoundsRequest;
import org.eclipse.gef.requests.GroupRequest;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.NonResizableEditPolicyEx;
import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand;
import org.eclipse.gmf.runtime.notation.Node;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.uml.diagram.common.Activator;
import org.eclipse.papyrus.uml.diagram.timing.custom.Messages;
import org.eclipse.papyrus.uml.diagram.timing.custom.edit.commands.RefreshCommandForDo;
import org.eclipse.papyrus.uml.diagram.timing.custom.edit.commands.RefreshCommandForUndo;
import org.eclipse.papyrus.uml.diagram.timing.custom.utils.EditPartUtils;
import org.eclipse.papyrus.uml.diagram.timing.custom.utils.FigureUtils;
import org.eclipse.papyrus.uml.diagram.timing.custom.utils.GeneralOrderingUtils;
import org.eclipse.papyrus.uml.diagram.timing.custom.utils.LifelineUtils;
import org.eclipse.papyrus.uml.diagram.timing.custom.utils.OccurrenceSpecificationUtils;
import org.eclipse.papyrus.uml.diagram.timing.custom.utils.RequestUtils;
import org.eclipse.papyrus.uml.diagram.timing.custom.utils.StateDefinitionUtils;
import org.eclipse.papyrus.uml.diagram.timing.custom.utils.StateInvariantUtils;
import org.eclipse.papyrus.uml.diagram.timing.custom.utils.TimeElementUtils;
import org.eclipse.papyrus.uml.diagram.timing.edit.parts.FullLifelineEditPartCN;
import org.eclipse.papyrus.uml.diagram.timing.edit.parts.FullLifelineTimelineCompartmentEditPartCN;
import org.eclipse.papyrus.uml.diagram.timing.edit.parts.FullStateInvariantEditPartCN;
import org.eclipse.papyrus.uml.diagram.timing.edit.parts.FullStateInvariantVerticalLineEditPart;
import org.eclipse.papyrus.uml.diagram.timing.edit.parts.StateDefinitionEditPart;
import org.eclipse.papyrus.uml.diagram.timing.part.UMLVisualIDRegistry;
import org.eclipse.uml2.uml.Lifeline;
import org.eclipse.uml2.uml.OccurrenceSpecification;
import org.eclipse.uml2.uml.StateInvariant;
import org.eclipse.uml2.uml.UMLPackage;
/**
* This edit policy handles moving (through drag&drop) the elements in a Timeline compartment: StateInvariants,
* OccurrenceSpecifications, etc.
*/
public class CustomTimelineCompartmentLayoutEditPolicy extends AbstractTimelineLayoutPolicy {
private static final String ALL_MOVED_EDITPARTS = "ALL_MOVED_EDITPARTS"; //$NON-NLS-1$
/** The height of the feedback figure when moving StateInvariants up or down. */
private static final int LAYOUT_FEEDBACK_HEIGHT = 4;
private final List<IFigure> layoutFeedbackFigures = new ArrayList<IFigure>();
@Override
protected Command getMoveChildrenCommand(final Request request) {
if(RequestUtils.isChangeBoundsRequestFor(request, UMLPackage.eINSTANCE.getStateInvariant())) {
return getMoveStateInvariantCommand(request);
} else if(RequestUtils.isChangeBoundsRequestFor(request, FullStateInvariantVerticalLineEditPart.class)) {
return getMoveVerticalLinesCommand(request);
} else if(RequestUtils.isChangeBoundsRequestFor(request, UMLPackage.eINSTANCE.getOccurrenceSpecification())) {
return getMoveOccurrenceSpecificationsCommand(request);
}
return super.getMoveChildrenCommand(request);
}
private Command getMoveStateInvariantCommand(final Request request) {
final ChangeBoundsRequest changeBoundsRequest = (ChangeBoundsRequest)request;
final Point location = changeBoundsRequest.getLocation();
if(location == null) {
Activator.log.warn("Ignoring ChangeBoundsRequest without a Location"); //$NON-NLS-1$
return UnexecutableCommand.INSTANCE;
}
final int ordinate = location.y;
final CompoundCommand compoundCommand = new CompoundCommand(Messages.CustomTimelineCompartmentLayoutEditPolicy_MoveStateInvariant);
final FullLifelineEditPartCN lifelineEditPart = (FullLifelineEditPartCN)getHost().getParent();
compoundCommand.add(new RefreshCommandForUndo(lifelineEditPart));
final StateDefinitionEditPart stateDefinitionEditPart = StateDefinitionUtils.findStateDefinitionClosestToOrdinate(lifelineEditPart, ordinate);
if(stateDefinitionEditPart == null) {
return UnexecutableCommand.INSTANCE;
}
final View stateDefinitionView = ((View)stateDefinitionEditPart.getModel());
final String closestStateDefinitionName = StateDefinitionUtils.getStateDefinitionName(stateDefinitionView);
final String closestStateDefinitionId = StateDefinitionUtils.getStateDefinitionViewID(stateDefinitionView);
@SuppressWarnings("unchecked")
final List<EditPart> editParts = changeBoundsRequest.getEditParts();
for(final EditPart editPart : editParts) {
if(editPart instanceof FullStateInvariantEditPartCN) {
final FullStateInvariantEditPartCN fullStateInvariantEditPart = (FullStateInvariantEditPartCN)editPart;
final StateInvariant stateInvariant = (StateInvariant)((View)(fullStateInvariantEditPart.getModel())).getElement();
final TransactionalEditingDomain editingDomain = TransactionUtil.getEditingDomain(stateInvariant);
if(editingDomain == null) {
throw new IllegalStateException("no editing domain"); //$NON-NLS-1$
}
final AbstractTransactionalCommand updateStateInvariantCommand = new AbstractTransactionalCommand(editingDomain, Messages.CustomTimelineCompartmentLayoutEditPolicy_UpdateStateInvariant, null) {
@Override
protected CommandResult doExecuteWithResult(final IProgressMonitor monitor, final IAdaptable info) throws ExecutionException {
StateInvariantUtils.setStateInvariantId(stateInvariant, closestStateDefinitionId);
StateInvariantUtils.setInnerStateInvariantName(stateInvariant, closestStateDefinitionName);
final View lifelineView = (View)lifelineEditPart.getModel();
final Lifeline lifeline = (Lifeline)lifelineView.getElement();
LifelineUtils.updateFragmentNames(lifeline, lifelineView);
return CommandResult.newOKCommandResult();
}
};
compoundCommand.add(new ICommandProxy(updateStateInvariantCommand));
}
}
compoundCommand.add(new RefreshCommandForDo(lifelineEditPart));
return compoundCommand;
}
/**
* When moving a VerticalLine, we actually move the OccurrenceSpecification that precedes it (that is important for
* the layout).
*/
private Command getMoveVerticalLinesCommand(final Request request) {
final ChangeBoundsRequest changeBoundsRequest = (ChangeBoundsRequest)request;
final CompoundCommand compoundCommand = new CompoundCommand(Messages.CustomTimelineCompartmentLayoutEditPolicy_MoveVerticalLine);
final FullLifelineEditPartCN lifelineEditPart = (FullLifelineEditPartCN)getHost().getParent();
compoundCommand.add(new RefreshCommandForUndo(lifelineEditPart));
final FullLifelineTimelineCompartmentEditPartCN timelineCompartmentEditPart = (FullLifelineTimelineCompartmentEditPartCN)EditPartUtils.findFirstChildEditPartWithId(lifelineEditPart, FullLifelineTimelineCompartmentEditPartCN.VISUAL_ID);
final View timelineCompartmentView = (View)timelineCompartmentEditPart.getModel();
@SuppressWarnings("unchecked")
final List<EditPart> editParts = changeBoundsRequest.getEditParts();
final Point moveDelta = FigureUtils.scaleByZoom(changeBoundsRequest.getMoveDelta(), lifelineEditPart.getFigure());
// no vertical move
moveDelta.y = 0;
final List<Node> nodesToMove = new ArrayList<Node>();
final List<Integer> indexes = new ArrayList<Integer>();
final List<Node> allMovedNodes = getAllMovedNodes(request);
for(final EditPart editPart : editParts) {
if(editPart instanceof FullStateInvariantVerticalLineEditPart) {
final FullStateInvariantVerticalLineEditPart verticalLineEditPart = (FullStateInvariantVerticalLineEditPart)editPart;
final View verticalLineView = (View)verticalLineEditPart.getModel();
final int index = timelineCompartmentView.getChildren().indexOf(verticalLineView);
if(index > 0) {
final int occurrenceSpecificationIndex = index - 1;
final View previousView = (View)timelineCompartmentView.getChildren().get(occurrenceSpecificationIndex);
if(previousView.getElement() instanceof OccurrenceSpecification) {
final Node occurrenceSpecificationNode = (Node)previousView;
nodesToMove.add(occurrenceSpecificationNode);
indexes.add(Integer.valueOf(occurrenceSpecificationIndex));
}
}
}
}
int i = 0;
for(final Node node : nodesToMove) {
compoundCommand.add(getMoveOccurrenceSpecificationCommand(node, moveDelta, timelineCompartmentView, indexes.get(i).intValue(), allMovedNodes));
i++;
}
compoundCommand.add(new RefreshCommandForDo(lifelineEditPart));
return compoundCommand;
}
private Command getMoveOccurrenceSpecificationsCommand(final Request request) {
final ChangeBoundsRequest changeBoundsRequest = (ChangeBoundsRequest)request;
final CompoundCommand compoundCommand = new CompoundCommand(Messages.CustomTimelineCompartmentLayoutEditPolicy_MoveOccurrenceSpecification);
final FullLifelineEditPartCN lifelineEditPart = (FullLifelineEditPartCN)getHost().getParent();
compoundCommand.add(new RefreshCommandForUndo(lifelineEditPart));
final FullLifelineTimelineCompartmentEditPartCN timelineCompartmentEditPart = (FullLifelineTimelineCompartmentEditPartCN)EditPartUtils.findFirstChildEditPartWithId(lifelineEditPart, FullLifelineTimelineCompartmentEditPartCN.VISUAL_ID);
final View timelineCompartmentView = (View)timelineCompartmentEditPart.getModel();
@SuppressWarnings("unchecked")
final List<EditPart> editParts = changeBoundsRequest.getEditParts();
final Point moveDelta = FigureUtils.scaleByZoom(changeBoundsRequest.getMoveDelta(), lifelineEditPart.getFigure());
// no vertical move
moveDelta.y = 0;
final List<Node> nodesToMove = new ArrayList<Node>();
final List<Node> allMovedNodes = getAllMovedNodes(request);
for(final EditPart editPart : editParts) {
if(OccurrenceSpecificationUtils.isOccurrenceSpecificationEditPart(editPart)) {
final Node occurrenceSpecificationNode = (Node)editPart.getModel();
final Rectangle figureBounds = ((GraphicalEditPart)editPart).getFigure().getBounds();
// constrain the move inside the timeline
moveDelta.x = Math.min(moveDelta.x, getHostFigure().getBounds().width - figureBounds.x - figureBounds.width - 2);
nodesToMove.add(occurrenceSpecificationNode);
}
}
for(final Node node : nodesToMove) {
final int index = timelineCompartmentView.getChildren().indexOf(node);
if(index >= 0) {
compoundCommand.add(getMoveOccurrenceSpecificationCommand(node, moveDelta, timelineCompartmentView, index, allMovedNodes));
}
}
compoundCommand.add(new RefreshCommandForDo(lifelineEditPart));
return compoundCommand;
}
@SuppressWarnings("unchecked")
private static List<Node> getAllMovedNodes(final Request request) {
final List<Node> allMovedNodes = new ArrayList<Node>();
final Map<Object, Object> extendedData = request.getExtendedData();
if(extendedData != null) {
List<EditPart> editParts = (List<EditPart>)extendedData.get(ALL_MOVED_EDITPARTS);
// when the request is sent directly, for example in unit tests
if(editParts == null) {
if(request instanceof GroupRequest) {
final GroupRequest groupRequest = (GroupRequest)request;
editParts = groupRequest.getEditParts();
}
}
if(editParts != null) {
for(final EditPart editPart : editParts) {
if(editPart instanceof GraphicalEditPart) {
final GraphicalEditPart graphicalEditPart = (GraphicalEditPart)editPart;
final Object model = graphicalEditPart.getModel();
if(model instanceof Node) {
final Node node = (Node)model;
allMovedNodes.add(node);
}
}
}
}
}
return allMovedNodes;
}
/** returns a NonResizableEditPolicy instead of a ResizableEditPolicy for some children */
@Override
protected EditPolicy createChildEditPolicy(final EditPart child) {
final View childView = (View)child.getModel();
final int visualID = UMLVisualIDRegistry.getVisualID(childView);
// make these EditParts non-resizable
if(visualID == FullStateInvariantEditPartCN.VISUAL_ID || OccurrenceSpecificationUtils.isOccurrenceSpecificationEditPart(visualID) || visualID == FullStateInvariantVerticalLineEditPart.VISUAL_ID || TimeElementUtils.isTimeElementEditPart(visualID) || GeneralOrderingUtils.isGeneralOrderingEditPart(visualID)) {
return createNonResizableEditPolicy();
}
return super.createChildEditPolicy(child);
}
private NonResizableEditPolicy createNonResizableEditPolicy() {
return new NonResizableEditPolicyEx() {
/**
* Overridden in order to keep the information about all EditParts being dragged simultaneously (the GEF
* NonResizableEditPolicy redirects a multi-part move to several moves each on a single part)
*/
@Override
protected Command getMoveCommand(final ChangeBoundsRequest request) {
final ChangeBoundsRequest req = new ChangeBoundsRequest(REQ_MOVE_CHILDREN);
// we lose the information when we do that:
req.setEditParts(getHost());
@SuppressWarnings("unchecked")
final Map<Object, Object> extendedData = request.getExtendedData();
// so we store it in the extended data
extendedData.put(ALL_MOVED_EDITPARTS, request.getEditParts());
req.setMoveDelta(request.getMoveDelta());
req.setSizeDelta(request.getSizeDelta());
req.setLocation(request.getLocation());
req.setExtendedData(extendedData);
return getHost().getParent().getCommand(req);
}
};
}
@Override
protected void showLayoutTargetFeedback(final Request request) {
if(!RequestUtils.isChangeBoundsRequestFor(request, UMLPackage.eINSTANCE.getStateInvariant())) {
return;
}
eraseLayoutTargetFeedback();
final ChangeBoundsRequest changeBoundsRequest = (ChangeBoundsRequest)request;
final int targetY = computeTargetOrdinate(changeBoundsRequest);
@SuppressWarnings("unchecked")
final List<GraphicalEditPart> editParts = changeBoundsRequest.getEditParts();
final double scale = FigureUtils.getScale(getHostFigure());
for(final GraphicalEditPart editPart : editParts) {
final Rectangle figureBounds = editPart.getFigure().getBounds();
final Rectangle containerBounds = ((GraphicalEditPart)getHost()).getFigure().getBounds();
final Rectangle feedbackBounds = new Rectangle(containerBounds.x + figureBounds.x, targetY - LAYOUT_FEEDBACK_HEIGHT / 2, figureBounds.width, LAYOUT_FEEDBACK_HEIGHT);
feedbackBounds.scale(scale);
this.layoutFeedbackFigures.add(createLayoutTargetFeedbackFigure(feedbackBounds));
}
}
private int computeTargetOrdinate(final ChangeBoundsRequest request) {
final int ordinate = request.getLocation().y;
final FullLifelineEditPartCN lifelineEditPart = (FullLifelineEditPartCN)getHost().getParent();
final StateDefinitionEditPart stateDefinitionEditPart = StateDefinitionUtils.findStateDefinitionClosestToOrdinate(lifelineEditPart, ordinate);
final Rectangle figureBounds = stateDefinitionEditPart.getFigure().getBounds();
return figureBounds.y + figureBounds.height / 2;
}
protected IFigure createLayoutTargetFeedbackFigure(final Rectangle bounds) {
final RectangleFigure r = new RectangleFigure();
r.setForegroundColor(ColorConstants.darkBlue);
r.setBackgroundColor(ColorConstants.lightBlue);
r.setBounds(bounds);
r.validate();
addFeedback(r);
return r;
}
@Override
protected void eraseLayoutTargetFeedback(final Request request) {
if(!RequestUtils.isChangeBoundsRequestFor(request, UMLPackage.eINSTANCE.getStateInvariant())) {
return;
}
eraseLayoutTargetFeedback();
}
private void eraseLayoutTargetFeedback() {
for(final IFigure figure : this.layoutFeedbackFigures) {
removeFeedback(figure);
}
this.layoutFeedbackFigures.clear();
}
}
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