| /******************************************************************************* |
| * <copyright> |
| * |
| * Copyright (c) 2005, 2018 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: |
| * SAP AG - initial API, implementation and documentation |
| * mwenz - Bug 324859 - Need Undo/Redo support for Non-EMF based domain objects |
| * mgorning - Bug 329517 - state call backs during creation of a connection |
| * mwenz - Bug 325084 - Provide documentation for Patterns |
| * mwenz - Bug 443304 - Improve undo/redo handling in Graphiti features |
| * mwenz - Bug 481994 - Some XxxFeatureForPattern classes call ICustomUndoablePattern#redo instead of ICustomUndoRedoPattern#postRedo |
| * mwenz - Bug 472955 - Remove ICustomUndoableFeature and ICustomUndoablePattern deprecated in Graphiti 0.12.0 |
| * |
| * </copyright> |
| * |
| *******************************************************************************/ |
| package org.eclipse.graphiti.pattern; |
| |
| import org.eclipse.graphiti.features.ICustomAbortableUndoRedoFeature; |
| import org.eclipse.graphiti.features.IFeatureProvider; |
| import org.eclipse.graphiti.features.context.IContext; |
| import org.eclipse.graphiti.features.context.ICreateConnectionContext; |
| import org.eclipse.graphiti.features.impl.AbstractCreateConnectionFeature; |
| import org.eclipse.graphiti.mm.pictograms.Connection; |
| |
| /** |
| * This feature wraps the create functionality of a pattern for calls of the |
| * Graphiti framework. Clients should not need to use this class directly. |
| * |
| * @noextend This class is not intended to be subclassed by clients. |
| * @noinstantiate This class is not intended to be instantiated by clients. |
| */ |
| public class CreateConnectionFeatureForPattern extends AbstractCreateConnectionFeature implements |
| ICustomAbortableUndoRedoFeature { |
| private IConnectionPattern pattern; |
| |
| /** |
| * Creates a new {@link CreateConnectionFeatureForPattern}. |
| * |
| * @param featureProvider |
| * the feature provider |
| * @param pattern |
| * the connection pattern |
| */ |
| public CreateConnectionFeatureForPattern(IFeatureProvider featureProvider, IConnectionPattern pattern) { |
| super(featureProvider, pattern.getCreateName(), pattern.getCreateDescription()); |
| this.pattern = pattern; |
| } |
| |
| public boolean canCreate(ICreateConnectionContext context) { |
| boolean ret = pattern.canCreate(context); |
| return ret; |
| } |
| |
| public boolean canStartConnection(ICreateConnectionContext context) { |
| return pattern.canStartConnection(context); |
| } |
| |
| public Connection create(ICreateConnectionContext context) { |
| return pattern.create(context); |
| } |
| |
| @Override |
| public String getCreateImageId() { |
| return pattern.getCreateImageId(); |
| } |
| |
| @Override |
| public String getCreateLargeImageId() { |
| return pattern.getCreateLargeImageId(); |
| } |
| |
| /** |
| * @since 0.12 |
| */ |
| @Override |
| public boolean isAbort() { |
| if (pattern instanceof ICustomAbortableUndoRedoPattern) { |
| return ((ICustomAbortableUndoRedoPattern) pattern).isAbort(); |
| } |
| return false; |
| } |
| |
| @Override |
| public boolean canUndo(IContext context) { |
| if (pattern instanceof ICustomUndoRedoPattern) { |
| return ((ICustomUndoRedoPattern) pattern).canUndo(this, context); |
| } |
| return super.canUndo(context); |
| } |
| |
| /** |
| * @since 0.12 |
| */ |
| @Override |
| public void preUndo(IContext context) { |
| if (pattern instanceof ICustomUndoRedoPattern) { |
| ((ICustomUndoRedoPattern) pattern).preUndo(this, context); |
| } |
| } |
| |
| /** |
| * @since 0.12 |
| */ |
| @Override |
| public void postUndo(IContext context) { |
| if (pattern instanceof ICustomUndoRedoPattern) { |
| ((ICustomUndoRedoPattern) pattern).postUndo(this, context); |
| } |
| } |
| |
| /** |
| * @since 0.8 |
| */ |
| public boolean canRedo(IContext context) { |
| if (pattern instanceof ICustomUndoRedoPattern) { |
| return ((ICustomUndoRedoPattern) pattern).canRedo(this, context); |
| } |
| return true; |
| } |
| |
| /** |
| * @since 0.12 |
| */ |
| @Override |
| public void preRedo(IContext context) { |
| if (pattern instanceof ICustomUndoRedoPattern) { |
| ((ICustomUndoRedoPattern) pattern).preRedo(this, context); |
| } |
| } |
| |
| /** |
| * @since 0.12 |
| */ |
| @Override |
| public void postRedo(IContext context) { |
| if (pattern instanceof ICustomUndoRedoPattern) { |
| ((ICustomUndoRedoPattern) pattern).postRedo(this, context); |
| } |
| } |
| |
| @Override |
| public void startConnecting() { |
| pattern.startConnecting(); |
| } |
| |
| @Override |
| public void endConnecting() { |
| pattern.endConnecting(); |
| } |
| |
| @Override |
| public void attachedToSource(ICreateConnectionContext context) { |
| pattern.attachedToSource(context); |
| } |
| |
| @Override |
| public void canceledAttaching(ICreateConnectionContext context) { |
| pattern.canceledAttaching(context); |
| } |
| |
| /** |
| * Gets the pattern. |
| * |
| * @return the pattern |
| * @since 0.10 |
| */ |
| public IConnectionPattern getPattern() { |
| return pattern; |
| } |
| } |