| /******************************************************************************* |
| * Copyright (c) 2005, 2012 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.bpel.ui.editparts.policies; |
| |
| import org.eclipse.bpel.model.Activity; |
| import org.eclipse.bpel.ui.GraphicalBPELRootEditPart; |
| import org.eclipse.bpel.ui.Messages; |
| import org.eclipse.bpel.ui.commands.CompoundCommand; |
| import org.eclipse.bpel.ui.commands.InsertInContainerCommand; |
| import org.eclipse.bpel.ui.commands.SetConstraintCommand; |
| import org.eclipse.bpel.ui.commands.SetNameAndDirectEditCommand; |
| import org.eclipse.bpel.ui.editparts.BPELEditPart; |
| import org.eclipse.bpel.ui.editparts.FlowEditPart; |
| import org.eclipse.draw2d.geometry.Rectangle; |
| import org.eclipse.emf.ecore.EObject; |
| 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.editpolicies.XYLayoutEditPolicy; |
| |
| |
| /** |
| * GEF Edit Policy used to place bpel objects at specific XY locations |
| */ |
| public abstract class BPELXYLayoutEditPolicy extends XYLayoutEditPolicy { |
| |
| // the common guts of the AddCommand |
| @Override |
| protected Command createAddCommand(EditPart childEditPart, Object constraint) { |
| Activity activity = (Activity)childEditPart.getModel(); |
| Rectangle rect = (Rectangle) constraint; |
| |
| Command add = createAddCommand((EObject)getHost().getModel(), activity); |
| add.setLabel(Messages.BPELXYLayoutEditPolicy_Add_Part_1); |
| add.setDebugLabel("BPEL Editor CreateInListCommand"); //$NON-NLS-1$ |
| |
| // TODO: what does the following comment mean? |
| // we need to check if we should preserve the size when adding that child |
| |
| rect.setSize(-1, -1); |
| SetConstraintCommand setConstraint = new SetConstraintCommand(activity, rect.getLocation(), null); |
| |
| setConstraint.setLabel(Messages.BPELXYLayoutEditPolicy_Move_Part_2); |
| setConstraint.setDebugLabel("BPEL Editor setConstraintCommand"); //$NON-NLS-1$ |
| return add.chain(setConstraint); |
| } |
| |
| protected Command createAddCommand(EObject parent, EObject child) { |
| return new InsertInContainerCommand(parent, child, null); |
| } |
| @Override |
| protected Command createChangeConstraintCommand(EditPart child, Object constraint) { |
| return new SetConstraintCommand( |
| (Activity)child.getModel(), ((Rectangle)constraint).getLocation(), null); |
| } |
| |
| protected Command createCreateCommand(EObject parent, final EObject child) { |
| CompoundCommand c = new CompoundCommand(); |
| c.add(new InsertInContainerCommand(parent, child, null)); |
| c.add(new SetNameAndDirectEditCommand(child, getHost().getViewer())); |
| return c; |
| } |
| |
| @Override |
| protected Command getDeleteDependantCommand(Request request) { |
| return null; |
| } |
| |
| @Override |
| protected Command getOrphanChildrenCommand(Request request) { |
| return null; |
| } |
| |
| @Override |
| protected EditPolicy createChildEditPolicy(EditPart child){ |
| //if (child instanceof FlowEditPart) |
| // return new org.eclipse.gef.editpolicies.ResizableEditPolicy(); |
| return null; |
| } |
| |
| @Override |
| public EditPart getTargetEditPart(Request request) { |
| // this policy only works for the BPEL Editor itself, not the outline |
| if (getHost().getRoot() instanceof GraphicalBPELRootEditPart) { |
| return super.getTargetEditPart(request); |
| } |
| return null; |
| } |
| |
| /** |
| * TODO: THIS IS A TOTAL HACK |
| */ |
| @Override |
| protected Rectangle getCurrentConstraintFor(GraphicalEditPart child) { |
| Rectangle result = super.getCurrentConstraintFor(child); |
| if (result == null && child instanceof BPELEditPart && (getHost() instanceof FlowEditPart)) { |
| // We need a constraint but we don't have one. |
| |
| // Currently, calling refreshVisuals() on the child causes it to |
| // poof up a constraint for itself if its parent is a flow and the |
| // constraint is missing. Ugly hack. |
| ((BPELEditPart)child).refreshVisuals(); |
| |
| result = super.getCurrentConstraintFor(child); |
| } |
| return result; |
| } |
| |
| } |