| /********************************************************************* |
| * Copyright (c) 2005, 2019 SAP SE |
| * |
| * This program and the accompanying materials are made |
| * available under the terms of the Eclipse Public License 2.0 |
| * which is available at https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * Contributors: |
| * SAP SE - initial API, implementation and documentation |
| * mwenz - Bug 339525 - Enrich paste context with location information |
| * mwenz - Bug 375533 - Problems with copy&paste in the tutorial |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| **********************************************************************/ |
| package org.eclipse.graphiti.examples.tutorial.features; |
| |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.graphiti.features.IFeatureProvider; |
| import org.eclipse.graphiti.features.context.IPasteContext; |
| import org.eclipse.graphiti.features.context.impl.AddContext; |
| import org.eclipse.graphiti.mm.pictograms.Diagram; |
| import org.eclipse.graphiti.mm.pictograms.PictogramElement; |
| import org.eclipse.graphiti.ui.features.AbstractPasteFeature; |
| |
| public class TutorialPasteEClassFeature extends AbstractPasteFeature { |
| |
| public TutorialPasteEClassFeature(IFeatureProvider fp) { |
| super(fp); |
| } |
| |
| public boolean canPaste(IPasteContext context) { |
| // only support pasting directly in the diagram (nothing else selected) |
| PictogramElement[] pes = context.getPictogramElements(); |
| if (pes.length != 1 || !(pes[0] instanceof Diagram)) { |
| return false; |
| } |
| |
| // can paste, if clipboard is filled and all objects on the clipboard |
| // are EClasses that can be resolved |
| Object[] fromClipboard = getFromClipboard(); |
| if (fromClipboard == null || fromClipboard.length == 0) { |
| return false; |
| } |
| for (Object object : fromClipboard) { |
| if (object instanceof EObject) { |
| if (!isResolvable((EObject) object)) { |
| return false; |
| } |
| } else { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| public void paste(IPasteContext context) { |
| // we already verified, that we paste directly in the diagram |
| PictogramElement[] pes = context.getPictogramElements(); |
| Diagram diagram = (Diagram) pes[0]; |
| // get the EClasses from the clipboard without copying them |
| // (only copy the pictogram element, not the business object) |
| // then create new pictogram elements using the add feature |
| Object[] objects = getFromClipboard(); |
| for (Object object : objects) { |
| AddContext ac = new AddContext(); |
| // For simplicity paste all objects at the location given in the |
| // context (no stacking or similar) |
| ac.setLocation(context.getX(), context.getY()); |
| ac.setTargetContainer(diagram); |
| addGraphicalRepresentation(ac, object); |
| } |
| } |
| } |