| /** |
| * Copyright (c) 2008 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: |
| * Ed Merks, IBM - Initial API and implementation (bug 220843) |
| * |
| */ |
| package org.eclipse.ui.views.properties; |
| |
| import org.eclipse.jface.viewers.CellEditor; |
| import org.eclipse.jface.viewers.ColumnViewer; |
| import org.eclipse.jface.viewers.EditingSupport; |
| import org.eclipse.jface.viewers.TableViewer; |
| import org.eclipse.jface.viewers.TreeViewer; |
| import org.eclipse.swt.widgets.Composite; |
| |
| /** |
| * A concrete subclass of {@link EditingSupport} that implements cell editing |
| * support for column-based viewers (such as e.g. {@link TreeViewer} or |
| * {@link TableViewer}) based on an {@link IPropertySourceProvider}, |
| * forwarding requests to the {@link IPropertySource} or |
| * {@link IPropertyDescriptor} for the given property ID. |
| * |
| * @since 3.3 |
| * |
| * @see PropertyColumnLabelProvider |
| */ |
| public class PropertyEditingSupport extends EditingSupport { |
| protected IPropertySourceProvider propertySourceProvider; |
| protected Object propertyID; |
| |
| /** |
| * Creates a new instance to be used with the given viewer, based on the |
| * given property source provider and property ID. |
| * |
| * @param viewer |
| * the column viewer |
| * @param propertySourceProvider |
| * the property source provider |
| * @param propertyID |
| * the property ID |
| */ |
| public PropertyEditingSupport(ColumnViewer viewer, |
| IPropertySourceProvider propertySourceProvider, Object propertyID) { |
| super(viewer); |
| this.propertySourceProvider = propertySourceProvider; |
| this.propertyID = propertyID; |
| } |
| |
| protected boolean canEdit(Object object) { |
| IPropertySource propertySource = propertySourceProvider |
| .getPropertySource(object); |
| IPropertyDescriptor[] propertyDescriptors = propertySource |
| .getPropertyDescriptors(); |
| for (int i = 0; i < propertyDescriptors.length; i++) { |
| IPropertyDescriptor propertyDescriptor = propertyDescriptors[i]; |
| if (propertyID.equals(propertyDescriptor.getId())) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| protected CellEditor getCellEditor(Object object) { |
| IPropertySource propertySource = propertySourceProvider |
| .getPropertySource(object); |
| IPropertyDescriptor[] propertyDescriptors = propertySource |
| .getPropertyDescriptors(); |
| for (int i = 0; i < propertyDescriptors.length; i++) { |
| IPropertyDescriptor propertyDescriptor = propertyDescriptors[i]; |
| if (propertyID.equals(propertyDescriptor.getId())) { |
| return propertyDescriptor |
| .createPropertyEditor((Composite) getViewer() |
| .getControl()); |
| } |
| } |
| return null; |
| } |
| |
| protected Object getValue(Object object) { |
| IPropertySource propertySource = propertySourceProvider |
| .getPropertySource(object); |
| Object value = propertySource.getPropertyValue(propertyID); |
| IPropertySource valuePropertySource = propertySourceProvider |
| .getPropertySource(value); |
| if (valuePropertySource != null) { |
| value = valuePropertySource.getEditableValue(); |
| } |
| return value; |
| } |
| |
| protected void setValue(Object object, Object value) { |
| IPropertySource propertySource = propertySourceProvider |
| .getPropertySource(object); |
| propertySource.setPropertyValue(propertyID, value); |
| } |
| } |