| /******************************************************************************* |
| * Copyright (c) 2000, 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.ui.internal.decorators; |
| |
| import java.net.URL; |
| |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.viewers.IDecoration; |
| import org.eclipse.jface.viewers.ILabelProviderListener; |
| import org.eclipse.jface.viewers.ILightweightLabelDecorator; |
| import org.eclipse.ui.internal.util.BundleUtility; |
| |
| /** |
| * The DeclarativeDecorator is a decorator that is made entirely from an XML |
| * specification. |
| */ |
| public class DeclarativeDecorator implements ILightweightLabelDecorator { |
| |
| private String iconLocation; |
| |
| private IConfigurationElement configElement; |
| |
| private ImageDescriptor descriptor; |
| |
| DeclarativeDecorator(IConfigurationElement definingElement, String iconPath) { |
| this.iconLocation = iconPath; |
| this.configElement = definingElement; |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.IBaseLabelProvider#addListener(org.eclipse.jface.viewers.ILabelProviderListener) |
| */ |
| public void addListener(ILabelProviderListener listener) { |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose() |
| */ |
| public void dispose() { |
| //Nothing to do here |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(java.lang.Object, |
| * java.lang.String) |
| */ |
| public boolean isLabelProperty(Object element, String property) { |
| return false; |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(org.eclipse.jface.viewers.ILabelProviderListener) |
| */ |
| public void removeListener(ILabelProviderListener listener) { |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.ILightweightLabelDecorator#decorate(java.lang.Object, |
| * org.eclipse.jface.viewers.IDecoration) |
| */ |
| public void decorate(Object element, IDecoration decoration) { |
| if (descriptor == null) { |
| URL url = BundleUtility.find(configElement.getDeclaringExtension() |
| .getNamespace(), iconLocation); |
| if (url == null) { |
| return; |
| } |
| descriptor = ImageDescriptor.createFromURL(url); |
| } |
| decoration.addOverlay(descriptor); |
| } |
| } |