| package org.eclipse.stem.ui.views.explorer; |
| |
| /******************************************************************************* |
| * 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| import java.util.Collection; |
| |
| import org.eclipse.emf.edit.provider.ComposedAdapterFactory; |
| import org.eclipse.emf.edit.provider.IItemLabelProvider; |
| import org.eclipse.emf.edit.provider.ITreeItemContentProvider; |
| import org.eclipse.emf.edit.ui.provider.ExtendedImageRegistry; |
| import org.eclipse.jface.viewers.ILabelProvider; |
| import org.eclipse.jface.viewers.ILabelProviderListener; |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.ITreeSelection; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.swt.graphics.Image; |
| |
| /** |
| * |
| */ |
| public class IdentifiableProvider implements ILabelProvider, |
| ITreeContentProvider { |
| |
| /** |
| * Default Constructor |
| */ |
| public IdentifiableProvider() { |
| // Nothing |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object) |
| */ |
| public Image getImage(Object object) { |
| // Tree Selection? |
| if (object instanceof ITreeSelection) { |
| ITreeSelection selection = (ITreeSelection) object; |
| object = selection.getFirstElement(); |
| } |
| IItemLabelProvider it = getLabelProvider(object); |
| |
| // Did we find the provider? |
| if (it != null) { |
| // Yes |
| Object temp = it.getImage(object); |
| return (temp instanceof Image) ? (Image)temp : getImageFromObject(temp); |
| } |
| return null; |
| |
| } // getImage |
| |
| protected Image getImageFromObject(Object object) |
| { |
| return ExtendedImageRegistry.getInstance().getImage(object); |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object) |
| */ |
| public String getText(Object element) { |
| // Tree Selection? |
| if (element instanceof ITreeSelection) { |
| ITreeSelection selection = (ITreeSelection) element; |
| element = selection.getFirstElement(); |
| } |
| Object obj = getLabelProvider(element); |
| String temp = ((IItemLabelProvider)obj).getText(element); |
| return temp; |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object) |
| */ |
| public Object[] getChildren(Object parentElement) { |
| final Collection<?> children = getTreeContentProvider(parentElement).getChildren(parentElement); |
| return children.toArray(); |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object) |
| */ |
| public Object getParent(Object element) { |
| return getTreeContentProvider(element).getParent(element); |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object) |
| */ |
| public boolean hasChildren(Object element) { |
| return getTreeContentProvider(element).hasChildren(element); |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object) |
| */ |
| public Object[] getElements(Object inputElement) { |
| final Collection<?> elements = getTreeContentProvider(inputElement).getElements(inputElement); |
| return elements.toArray(); |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface |
| * .viewers.Viewer, java.lang.Object, java.lang.Object) |
| */ |
| @SuppressWarnings("unused") |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| // Nothing |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.IBaseLabelProvider#addListener(org.eclipse. |
| * jface.viewers.ILabelProviderListener) |
| */ |
| @SuppressWarnings("unused") |
| public void addListener(ILabelProviderListener listener) { |
| // Nothing |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose() |
| */ |
| public void dispose() { |
| // Nothing |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(java.lang |
| * .Object, java.lang.String) |
| */ |
| @SuppressWarnings("unused") |
| public boolean isLabelProperty(Object element, String property) { |
| return false; |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(org.eclipse.jface.viewers.ILabelProviderListener) |
| */ |
| @SuppressWarnings("unused") |
| public void removeListener(ILabelProviderListener listener) { |
| // Nothing |
| } |
| |
| private ComposedAdapterFactory getAdapterFactory() { |
| ComposedAdapterFactory retValue = new ComposedAdapterFactory( |
| ComposedAdapterFactory.Descriptor.Registry.INSTANCE); |
| return retValue; |
| } |
| |
| private IItemLabelProvider getLabelProvider(final Object element) { |
| return (IItemLabelProvider) getAdapterFactory().adapt(element, |
| IItemLabelProvider.class); |
| } |
| |
| private ITreeItemContentProvider getTreeContentProvider(final Object element) { |
| return (ITreeItemContentProvider) getAdapterFactory().adapt(element, |
| ITreeItemContentProvider.class); |
| } |
| } // IdentifiableProvider |