| /******************************************************************************* |
| * <copyright> |
| * |
| * Copyright (c) 2005, 2010 SAP AG. |
| * 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: |
| * Petya Sabeva - initial API, implementation and documentation |
| * |
| * </copyright> |
| * |
| *******************************************************************************/ |
| package org.eclipse.jpt.jpadiagrameditor.ui.internal.feature; |
| |
| import org.eclipse.emf.transaction.RecordingCommand; |
| import org.eclipse.emf.transaction.TransactionalEditingDomain; |
| import org.eclipse.emf.transaction.util.TransactionUtil; |
| import org.eclipse.graphiti.features.IFeatureProvider; |
| import org.eclipse.graphiti.features.context.IContext; |
| import org.eclipse.graphiti.features.context.ICustomContext; |
| import org.eclipse.graphiti.features.custom.AbstractCustomFeature; |
| import org.eclipse.graphiti.mm.algorithms.GraphicsAlgorithm; |
| import org.eclipse.graphiti.mm.pictograms.ContainerShape; |
| import org.eclipse.graphiti.mm.pictograms.PictogramElement; |
| import org.eclipse.jpt.jpadiagrameditor.ui.internal.provider.IJPAEditorFeatureProvider; |
| import org.eclipse.jpt.jpadiagrameditor.ui.internal.util.GraphicsUpdater; |
| import org.eclipse.jpt.jpadiagrameditor.ui.internal.util.JPAEditorConstants; |
| import org.eclipse.jpt.jpadiagrameditor.ui.internal.util.JPAEditorUtil; |
| |
| |
| public class CollapseCompartmentShapeFeature extends AbstractCustomFeature{ |
| |
| public CollapseCompartmentShapeFeature(IFeatureProvider fp) { |
| super(fp); |
| } |
| |
| public void execute(ICustomContext context) { |
| PictogramElement el = context.getPictogramElements()[0]; |
| |
| final ContainerShape containerShape = (ContainerShape) el; |
| final ContainerShape entityShape = containerShape.getContainer(); |
| |
| final GraphicsAlgorithm algo = el.getGraphicsAlgorithm(); |
| TransactionalEditingDomain ted = TransactionUtil.getEditingDomain(algo); |
| ted.getCommandStack().execute(new RecordingCommand(ted) { |
| protected void doExecute() { |
| algo.setHeight(JPAEditorConstants.COMPARTMENT_MIN_HEIGHT); |
| GraphicsUpdater.updateEntityShape(entityShape); |
| GraphicsUpdater.setCollapsed(containerShape, true); |
| JPAEditorUtil.rearrangeAllConnections(entityShape, getFeatureProvider(), false); |
| } |
| }); |
| } |
| |
| @Override |
| public boolean canExecute(ICustomContext context) { |
| return true; |
| } |
| |
| public IJPAEditorFeatureProvider getFeatureProvider() { |
| return (IJPAEditorFeatureProvider)super.getFeatureProvider(); |
| } |
| |
| @Override |
| public boolean isAvailable(IContext context) { |
| boolean ret = false; |
| if (context instanceof ICustomContext) { |
| PictogramElement[] pes = ((ICustomContext) context).getPictogramElements(); |
| if (pes != null && pes.length > 0) { |
| boolean collapsePossible = false; |
| for (int i = 0; i < pes.length; i++) { |
| PictogramElement pe = pes[i]; |
| Object bo = getBusinessObjectForPictogramElement(pe); |
| if (bo != null) { |
| return false; |
| } |
| if (!collapsePossible) { |
| if(!GraphicsUpdater.isCollapsed((ContainerShape)pe)) { |
| collapsePossible = true; |
| } |
| } |
| } |
| if (collapsePossible) { |
| return true; |
| } |
| } |
| } |
| return ret; |
| } |
| |
| } |