| /******************************************************************************* |
| * Copyright (c) 2003, 2005 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.debug.internal.ui.sourcelookup; |
| |
| import java.util.Hashtable; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.core.runtime.IExtensionPoint; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.debug.internal.ui.DebugPluginImages; |
| import org.eclipse.debug.internal.ui.DebugUIPlugin; |
| import org.eclipse.debug.ui.sourcelookup.ISourceContainerBrowser; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.resource.ImageRegistry; |
| import org.eclipse.swt.graphics.Image; |
| |
| /** |
| * Utility methods for the UI portion of the source lookup solution. |
| * |
| * @since 3.0 |
| */ |
| public class SourceLookupUIUtils { |
| /** |
| * Constant for the container presentation extension id. |
| * @since 3.0 |
| */ |
| public static final String CONTAINER_PRESENTATION_EXTENSION = "sourceContainerPresentations"; //$NON-NLS-1$ |
| /** |
| * Constant for the container presentation icon attribute. |
| * @since 3.0 |
| */ |
| public static final String ICON_ATTRIBUTE = "icon"; //$NON-NLS-1$ |
| /** |
| * Constant for the container presentation browser attribute. |
| * @since 3.0 |
| */ |
| public static final String BROWSER_CLASS_ATTRIBUTE = "browserClass"; //$NON-NLS-1$ |
| /** |
| * Constant for the container presentation type id attribute. |
| * @since 3.0 |
| */ |
| public static final String CONTAINER_ID_ATTRIBUTE = "containerTypeID"; //$NON-NLS-1$ |
| |
| private static Hashtable fSourceContainerPresentationHashtable; |
| |
| /** |
| * Constructor. Reads in Source Container Presentation extension implementations. |
| */ |
| public SourceLookupUIUtils(){ |
| IExtensionPoint extensionPoint= Platform.getExtensionRegistry().getExtensionPoint(DebugUIPlugin.getUniqueIdentifier(), CONTAINER_PRESENTATION_EXTENSION); |
| //read in SourceContainer presentation extensions |
| IConfigurationElement[] sourceContainerPresentationExtensions =extensionPoint.getConfigurationElements(); |
| fSourceContainerPresentationHashtable = new Hashtable(); |
| for (int i = 0; i < sourceContainerPresentationExtensions.length; i++) { |
| fSourceContainerPresentationHashtable.put( |
| sourceContainerPresentationExtensions[i].getAttribute(CONTAINER_ID_ATTRIBUTE), |
| sourceContainerPresentationExtensions[i]); |
| registerContainerImages(sourceContainerPresentationExtensions[i]); |
| } |
| } |
| |
| |
| /** |
| * Retrieves the icon associated with a source container type. |
| * @param id the container type id |
| * @return the image for the type specified |
| */ |
| public static Image getSourceContainerImage(String id){ |
| if(fSourceContainerPresentationHashtable == null) |
| new SourceLookupUIUtils(); |
| return DebugPluginImages.getImage(id); |
| } |
| |
| /** |
| * Retrieves the browser class associated with the source container type specified. |
| * @param typeID the source container type id |
| * @return the browser class |
| */ |
| public static ISourceContainerBrowser getSourceContainerBrowser(String typeID) |
| { |
| if(fSourceContainerPresentationHashtable == null) |
| new SourceLookupUIUtils(); |
| IConfigurationElement element = (IConfigurationElement)fSourceContainerPresentationHashtable.get(typeID); |
| ISourceContainerBrowser browser = null; |
| try{ |
| if(element!= null && element.getAttribute(BROWSER_CLASS_ATTRIBUTE) != null) |
| browser = (ISourceContainerBrowser) element.createExecutableExtension(BROWSER_CLASS_ATTRIBUTE); |
| }catch(CoreException e){} |
| return browser; |
| } |
| |
| private void registerContainerImages(IConfigurationElement configElement){ |
| ImageDescriptor imageDescriptor = DebugUIPlugin.getImageDescriptor(configElement, ICON_ATTRIBUTE); |
| if (imageDescriptor == null) { |
| imageDescriptor = ImageDescriptor.getMissingImageDescriptor(); |
| } |
| String configTypeID = configElement.getAttribute(CONTAINER_ID_ATTRIBUTE); |
| ImageRegistry imageRegistry = DebugPluginImages.getImageRegistry(); |
| imageRegistry.put(configTypeID, imageDescriptor); |
| } |
| |
| } |