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/*****************************************************************************
* Copyright (c) 2016 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.referencialgrilling;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.Request;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.commands.CompoundCommand;
import org.eclipse.gef.requests.ChangeBoundsRequest;
import org.eclipse.gef.requests.CreateRequest;
import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.editparts.DiagramEditPart;
import org.eclipse.gmf.runtime.diagram.ui.requests.CreateViewAndElementRequest;
import org.eclipse.gmf.runtime.notation.Bounds;
import org.eclipse.gmf.runtime.notation.DecorationNode;
import org.eclipse.gmf.runtime.notation.Node;
import org.eclipse.papyrus.infra.gmfdiag.common.editpolicies.XYLayoutWithConstrainedResizedEditPolicy;
import org.eclipse.papyrus.infra.gmfdiag.common.service.palette.AspectUnspecifiedTypeCreationTool.CreateAspectUnspecifiedTypeRequest;
import org.eclipse.papyrus.uml.diagram.sequence.command.SetMoveAllLineAtSamePositionCommand;
import org.eclipse.papyrus.uml.diagram.sequence.edit.parts.LifelineEditPart;
import org.eclipse.papyrus.uml.service.types.element.UMLDIElementTypes;
/**
* This class is over load the creation of element and to avoid to move element directly at creation
*
*/
public class GridBasedXYLayoutEditPolicy extends XYLayoutWithConstrainedResizedEditPolicy implements IGrillingEditpolicy{
/**
*
* @see org.eclipse.papyrus.infra.gmfdiag.common.editpolicies.XYLayoutWithConstrainedResizedEditPolicy#getCreateCommand(org.eclipse.gef.requests.CreateRequest)
*
* @param request
* @return
*/
@Override
protected Command getCreateCommand(CreateRequest request) {
DiagramEditPart diagramEditPart=getDiagramEditPart(getHost());
GridManagementEditPolicy grid=(GridManagementEditPolicy)diagramEditPart.getEditPolicy(GridManagementEditPolicy.GRID_MANAGEMENT);
if (grid!=null){
if( request instanceof CreateViewAndElementRequest){
String semanticHint=((CreateViewAndElementRequest)request).getViewAndElementDescriptor().getSemanticHint();
// do let the user place where he want the life line at the creation
if(semanticHint.equals(LifelineEditPart.VISUAL_ID)){
request.setLocation(new Point(request.getLocation().x,40));
}
}
CompoundCommand cmd= new CompoundCommand();
SetMoveAllLineAtSamePositionCommand setMoveAllLineAtSamePositionCommand= new SetMoveAllLineAtSamePositionCommand(grid, false);
cmd.add(setMoveAllLineAtSamePositionCommand);
cmd.add(super.getCreateCommand(request));
setMoveAllLineAtSamePositionCommand= new SetMoveAllLineAtSamePositionCommand( grid, true);
cmd.add(setMoveAllLineAtSamePositionCommand);
return cmd;
}
return super.getCreateCommand(request);
}
/* Override to use to deal with causes where the point is UNDERFINED
* we will ask the layout helper to find a location for us
* @see org.eclipse.gef.editpolicies.ConstrainedLayoutEditPolicy#getConstraintFor(org.eclipse.gef.requests.CreateRequest)
*/
/* Override to use to deal with causes where the point is UNDERFINED
* we will ask the layout helper to find a location for us
* @see org.eclipse.gef.editpolicies.ConstrainedLayoutEditPolicy#getConstraintFor(org.eclipse.gef.requests.CreateRequest)
*/
protected Object getConstraintFor(CreateRequest request) {
// Used during the creation from the palette
Object constraint = super.getConstraintFor(request);
if( constraint instanceof Rectangle){
if( request instanceof CreateViewAndElementRequest){
String semanticHint=((CreateViewAndElementRequest)request).getViewAndElementDescriptor().getSemanticHint();
// do let the user place where he want the life line at the creation
if(semanticHint.equals(LifelineEditPart.VISUAL_ID)){
request.setLocation(new Point(request.getLocation().x,10));
}
}
}
return constraint;
}
/**
* @see org.eclipse.papyrus.infra.gmfdiag.common.editpolicies.XYLayoutWithConstrainedResizedEditPolicy#createChangeConstraintCommand(org.eclipse.gef.requests.ChangeBoundsRequest, org.eclipse.gef.EditPart, java.lang.Object)
*
* @param request
* @param child
* @param constraint
* @return
*/
@Override
protected Command createChangeConstraintCommand(ChangeBoundsRequest request, EditPart child, Object constraint) {
if( child instanceof LifelineEditPart && constraint instanceof Rectangle) {
Rectangle rect= (Rectangle)constraint;
rect.y=((Bounds)((Node)((LifelineEditPart)child).getNotationView()).getLayoutConstraint()).getY();
return super.createChangeConstraintCommand(request, child, rect);
}
return super.createChangeConstraintCommand(request, child, constraint);
}
/**
* @see org.eclipse.gef.editpolicies.LayoutEditPolicy#showLayoutTargetFeedback(org.eclipse.gef.Request)
*
* @param request
*/
@Override
protected void showLayoutTargetFeedback(Request request) {
if(request instanceof ChangeBoundsRequest){
ChangeBoundsRequest changeBoundsRequest= (ChangeBoundsRequest)request;
if( changeBoundsRequest.getEditParts().get(0) instanceof LifelineEditPart) {
changeBoundsRequest.setMoveDelta(new Point(changeBoundsRequest.getMoveDelta().x,0));
}
}
super.showLayoutTargetFeedback(request);
}
}
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