| /******************************************************************************* |
| * Copyright (c) 2003, 2006 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.wst.server.ui.internal.viewers; |
| |
| import org.eclipse.jface.viewers.ILabelDecorator; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.ui.ISharedImages; |
| import org.eclipse.ui.PlatformUI; |
| /** |
| * Abstract tree label provider. |
| */ |
| public abstract class AbstractTreeLabelProvider extends BaseLabelProvider { |
| /** |
| * A standard tree label provider. |
| */ |
| public AbstractTreeLabelProvider() { |
| super(); |
| } |
| |
| /** |
| * A standard tree label provider. |
| * |
| * @param decorator a label decorator, or null if no decorator is required |
| */ |
| public AbstractTreeLabelProvider(ILabelDecorator decorator) { |
| super(decorator); |
| } |
| |
| /** |
| * @see BaseLabelProvider#getImage(Object) |
| */ |
| public Image getImage(Object element) { |
| if (element instanceof ServerTreeContentProvider.TreeElement) { |
| ISharedImages sharedImages = PlatformUI.getWorkbench().getSharedImages(); |
| return sharedImages.getImage(ISharedImages.IMG_OBJ_FOLDER); |
| } |
| Image image = getImageImpl(element); |
| if (decorator != null) { |
| Image dec = decorator.decorateImage(image, element); |
| if (dec != null) |
| return dec; |
| } |
| return image; |
| } |
| |
| /** |
| * Return an image for the given element. |
| * |
| * @param element an element |
| * @return an image |
| */ |
| protected abstract Image getImageImpl(Object element); |
| |
| /** |
| * @see BaseLabelProvider#getText(Object) |
| */ |
| public String getText(Object element) { |
| if (element instanceof ServerTreeContentProvider.TreeElement) { |
| return ((ServerTreeContentProvider.TreeElement) element).text; |
| } |
| String text = getTextImpl(element); |
| if (decorator != null) { |
| String dec = decorator.decorateText(text, element); |
| if (dec != null && !dec.equals("")) |
| return dec; |
| } |
| return text; |
| } |
| |
| /** |
| * Return a label for the given element. |
| * |
| * @param element an element |
| * @return a label |
| */ |
| protected abstract String getTextImpl(Object element); |
| } |