| /****************************************************************************** |
| * Copyright (c) 2004, 2006 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.gmf.runtime.diagram.ui.internal.ruler.commands; |
| |
| 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.emf.transaction.TransactionalEditingDomain; |
| import org.eclipse.gef.EditPartViewer; |
| import org.eclipse.gmf.runtime.common.core.command.CommandResult; |
| import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart; |
| import org.eclipse.gmf.runtime.diagram.ui.internal.ruler.DiagramGuide; |
| import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand; |
| import org.eclipse.gmf.runtime.notation.Alignment; |
| import org.eclipse.gmf.runtime.notation.Guide; |
| import org.eclipse.gmf.runtime.notation.Node; |
| import org.eclipse.gmf.runtime.notation.View; |
| |
| /** |
| * This command is used to change a guide's attached part |
| * @author Jody Schofield |
| */ |
| public class ChangeGuideCommand extends AbstractTransactionalCommand { |
| |
| private EditPartViewer editPartViewer; |
| private IAdaptable adapterPart = null; |
| private View attachedPart = null; |
| |
| private Guide theNewGuide; |
| private Alignment theNewAlign; |
| |
| private boolean horizontal; |
| |
| /** |
| * |
| * @param editingDomain |
| * the editing domain through which model changes are made |
| * @param viewer |
| * @param part |
| * @param horizontalGuide |
| */ |
| public ChangeGuideCommand(TransactionalEditingDomain editingDomain, EditPartViewer viewer, IAdaptable part, boolean horizontalGuide) { |
| super(editingDomain, null, null); |
| editPartViewer = viewer; |
| adapterPart = part; |
| horizontal = horizontalGuide; |
| } |
| |
| /** |
| * @param editingDomain |
| * the editing domain through which model changes are made |
| * @param part |
| * @param horizontalGuide |
| */ |
| public ChangeGuideCommand(TransactionalEditingDomain editingDomain, View part, boolean horizontalGuide) { |
| super(editingDomain, null, null); |
| attachedPart = part; |
| horizontal = horizontalGuide; |
| } |
| |
| protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) |
| throws ExecutionException { |
| |
| // Detach the part from it's old guide |
| Guide theOldGuide = horizontal ? DiagramGuide.getInstance().getHorizontalGuide(attachedPart) : |
| DiagramGuide.getInstance().getVerticalGuide(attachedPart); |
| |
| if (theOldGuide != null) { |
| theOldGuide.getNodeMap().remove(getViewNode()); |
| } |
| |
| // Attach the part to it's new guide |
| if (theNewGuide != null) { |
| theNewGuide.getNodeMap().put(getViewNode(), theNewAlign); |
| } |
| |
| editPartViewer = null; |
| adapterPart = null; |
| attachedPart = null; |
| theNewGuide = null; |
| theNewAlign = null; |
| |
| return CommandResult.newOKCommandResult(); |
| } |
| |
| public void setNewGuide(Guide guide, int alignment) { |
| theNewGuide = guide; |
| int value = 0; |
| switch( alignment ) { |
| case -1: |
| value = horizontal ? Alignment.TOP : Alignment.LEFT; |
| break; |
| case 0: |
| value = Alignment.CENTER; |
| break; |
| case 1: |
| value = horizontal ? Alignment.BOTTOM : Alignment.RIGHT; |
| } |
| theNewAlign = Alignment.get(value); |
| } |
| |
| private Node getViewNode() { |
| |
| if( adapterPart != null && attachedPart != null ) { |
| |
| Map epRegistry = |
| editPartViewer.getEditPartRegistry(); |
| |
| IGraphicalEditPart attachedEP = |
| (IGraphicalEditPart) epRegistry.get( |
| adapterPart.getAdapter(View.class)); |
| |
| attachedPart = (View)attachedEP.getModel(); |
| } |
| |
| return (Node)attachedPart; |
| } |
| } |