| /****************************************************************************** |
| * Copyright (c) 2004 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.gmf.runtime.emf.ui.properties.descriptors; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.util.EObjectContainmentEList; |
| import org.eclipse.jface.viewers.ILabelProvider; |
| import org.eclipse.jface.viewers.LabelProvider; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.ui.views.properties.IPropertyDescriptor; |
| import org.eclipse.ui.views.properties.IPropertySource; |
| import org.eclipse.ui.views.properties.PropertyDescriptor; |
| |
| import org.eclipse.gmf.runtime.common.ui.services.properties.PropertiesServiceAdapterFactory; |
| |
| /** |
| * A property source object that wraps around a containment list, presenting each item on the list |
| * as if it was a property. |
| * |
| * @author nbalaba |
| */ |
| public class EObjectContainmentListPropertyValue |
| implements IPropertySource { |
| |
| // properties provider to obtain properties of the objects on the list |
| protected static final PropertiesServiceAdapterFactory propertiesProvider = new PropertiesServiceAdapterFactory(); |
| |
| // the containment list itself |
| protected EObjectContainmentEList target; |
| |
| // local descritpors cache, where key is the property id and a value is a descritor for the property |
| protected Map descriptors; |
| |
| // a label provider |
| protected ILabelProvider labelProvider; |
| |
| /* |
| * @return - a default label provider |
| */ |
| private static ILabelProvider getDefaultLabelProvider() { |
| return new LabelProvider() { |
| |
| public String getText(Object anObject) { |
| return ""; //$NON-NLS-1$ |
| } |
| |
| public Image getImage(Object anObject) { |
| return null; |
| } |
| }; |
| } |
| |
| /** |
| * Create an instance of the <code>EObjectContainmentListPropertyValue</code> |
| * |
| * @param target - contaiment list |
| * @param labelProvider - label provider |
| */ |
| public EObjectContainmentListPropertyValue(EObjectContainmentEList target, |
| ILabelProvider labelProvider) { |
| super(); |
| |
| this.target = target; |
| this.descriptors = new HashMap(target.size()); |
| this.labelProvider = labelProvider; |
| |
| for (Iterator e = target.iterator(); e.hasNext();) { |
| EObject object = (EObject) e.next(); |
| createDescriptor(object); |
| } |
| |
| } |
| |
| /** |
| * Create an instance of the <code>EObjectContainmentListPropertyValue</code> |
| * |
| * @param target - contaiment list |
| */ |
| public EObjectContainmentListPropertyValue(EObjectContainmentEList target) { |
| this(target, getDefaultLabelProvider()); |
| } |
| |
| /** |
| * Create and cache property descriptor for the object on the list |
| * |
| * @param object - object on the containment list |
| */ |
| protected void createDescriptor(EObject object) { |
| PropertyDescriptor descriptor = new PropertyDescriptor(object, object |
| .eClass().getName()); |
| descriptor.setLabelProvider(labelProvider); |
| descriptors.put(object, descriptor); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.views.properties.IPropertySource#getEditableValue() |
| */ |
| public Object getEditableValue() { |
| return this; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.views.properties.IPropertySource#getPropertyDescriptors() |
| */ |
| public IPropertyDescriptor[] getPropertyDescriptors() { |
| List list = new ArrayList(descriptors.values()); |
| IPropertyDescriptor[] propertyDescriptors = new IPropertyDescriptor[list |
| .size()]; |
| System |
| .arraycopy(list.toArray(), 0, propertyDescriptors, 0, list.size()); |
| |
| return propertyDescriptors; |
| |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.views.properties.IPropertySource#getPropertyValue(java.lang.Object) |
| */ |
| public Object getPropertyValue(Object id) { |
| |
| return propertiesProvider.getPropertySource(id); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.views.properties.IPropertySource#isPropertySet(java.lang.Object) |
| */ |
| public boolean isPropertySet(Object id) { |
| return descriptors.containsKey(id); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.views.properties.IPropertySource#resetPropertyValue(java.lang.Object) |
| */ |
| public void resetPropertyValue(Object id) { |
| // do nothing |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.views.properties.IPropertySource#setPropertyValue(java.lang.Object, |
| * java.lang.Object) |
| */ |
| public void setPropertyValue(Object id, Object value) { |
| // do notning - this a read-only property source |
| |
| } |
| |
| /** |
| * @return Returns the labelProvider. |
| */ |
| public ILabelProvider getLabelProvider() { |
| return labelProvider; |
| } |
| |
| /** |
| * @param labelProvider |
| * The labelProvider to set. |
| */ |
| public void setLabelProvider(ILabelProvider labelProvider) { |
| this.labelProvider = labelProvider; |
| } |
| |
| /** |
| * @return Returns the target. |
| */ |
| public EObjectContainmentEList getTarget() { |
| return target; |
| } |
| } |