| /******************************************************************************* |
| * 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.details.providers; |
| |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerFilter; |
| |
| /** |
| * Filter which adds a given object to the contents of the viewer. |
| * |
| * Useful for ensuring that a value stored in the model actually |
| * appears in the widget (even if the content provider doesn't include |
| * that model object in its contents). |
| */ |
| public class AddSelectedObjectFilter extends ViewerFilter { |
| |
| Object selectedObject; |
| |
| @Override |
| public Object[] filter(Viewer viewer, Object parent, Object[] elements) { |
| if (selectedObject == null) return elements; |
| for (int i = 0; i<elements.length; i++) { |
| if (elements[i] == selectedObject) return elements; |
| } |
| Object[] result = new Object[elements.length + 1]; |
| result[0] = selectedObject; |
| System.arraycopy(elements, 0, result, 1, elements.length); |
| return result; |
| } |
| |
| @Override |
| public boolean select(Viewer viewer, Object parentElement, Object element) { |
| return true; |
| } |
| |
| public Object getSelectedObject() { |
| return selectedObject; |
| } |
| |
| public void setSelectedObject(Object selectedObject) { |
| this.selectedObject = selectedObject; |
| } |
| } |