| /******************************************************************************* |
| * 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.debug.internal.ui.views.launch; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.eclipse.debug.internal.ui.DelegatingModelPresentation; |
| import org.eclipse.debug.ui.IDebugModelPresentation; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.viewers.IColorProvider; |
| import org.eclipse.jface.viewers.IFontProvider; |
| import org.eclipse.swt.graphics.Color; |
| import org.eclipse.swt.graphics.Font; |
| import org.eclipse.swt.graphics.FontData; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.graphics.RGB; |
| |
| /** |
| * Translates images, colors, and fonts into image descriptors, RGBs, and font |
| * datas for workbench adapaters. Also provides labels. |
| * |
| * @since 3.1 |
| */ |
| public class DebugElementHelper { |
| |
| // a model presentation that can provide images & labels for debug elements |
| private static DelegatingModelPresentation fgPresenetation; |
| |
| // map of images to image descriptors |
| private static Map fgImages = new HashMap(); |
| |
| /** |
| * Disposes this adapater |
| */ |
| public static void dispose() { |
| fgImages.clear(); |
| if (fgPresenetation != null) { |
| fgPresenetation.dispose(); |
| fgPresenetation = null; |
| } |
| } |
| |
| |
| public static boolean isInitialized(Object object) { |
| DelegatingModelPresentation presentation = getPresentation(); |
| return presentation.isInitialized(object); |
| } |
| |
| /** |
| * Returns an image descriptor for the given debug element. |
| * |
| * @param object object for which an image descriptor is required |
| */ |
| public static ImageDescriptor getImageDescriptor(Object object) { |
| Image image = getPresentation().getImage(object); |
| return getImageDescriptor(image); |
| } |
| |
| /** |
| * Returns an image descriptor for the given debug element. |
| * |
| * @param presentation presentation to obtain image from |
| * @param object object for which an image descriptor is required |
| * @since 3.3 |
| */ |
| public static ImageDescriptor getImageDescriptor(Object object, IDebugModelPresentation presentation) { |
| Image image = presentation.getImage(object); |
| return getImageDescriptor(image); |
| } |
| |
| public static ImageDescriptor getImageDescriptor(Image image) |
| { |
| if (image != null) { |
| ImageDescriptor descriptor = (ImageDescriptor) fgImages.get(image); |
| if (descriptor == null) { |
| descriptor = new ImageImageDescriptor(image); |
| fgImages.put(image, descriptor); |
| } |
| return descriptor; |
| } |
| return null; |
| } |
| |
| /** |
| * Returns a label for the given debug element. |
| * |
| * @param o object for which a label is required |
| */ |
| public static String getLabel(Object o) { |
| return getPresentation().getText(o); |
| } |
| |
| /** |
| * Returns a model presentation to use to retrieve lables & images. |
| * |
| * @return a model presentation to use to retrieve lables & images |
| */ |
| public static DelegatingModelPresentation getPresentation() { |
| if (fgPresenetation == null) { |
| fgPresenetation = new DelegatingModelPresentation(); |
| } |
| return fgPresenetation; |
| } |
| |
| /** |
| * Returns the RGB of the foreground color for the given element, or |
| * <code>null</code> if none. |
| * |
| * @param element object for which a foreground color is required |
| * @return the RGB of the foreground color for the given element, or |
| * <code>null</code> if none |
| */ |
| public static RGB getForeground(Object element) { |
| Color color = getPresentation().getForeground(element); |
| if (color != null) { |
| return color.getRGB(); |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the RGB of the foreground color for the given element, or |
| * <code>null</code> if none. |
| * |
| * @param element object for which a foreground color is required |
| * @param presentation presentation to obtain color from |
| * @return the RGB of the foreground color for the given element, or |
| * <code>null</code> if none |
| * @since 3.3 |
| */ |
| public static RGB getForeground(Object element, IDebugModelPresentation presentation) { |
| Color color = null; |
| if (presentation instanceof IColorProvider) { |
| IColorProvider colorProvider = (IColorProvider) presentation; |
| color = colorProvider.getForeground(element); |
| } else { |
| color = getPresentation().getForeground(element); |
| } |
| if (color != null) { |
| return color.getRGB(); |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the RGB of the background color for the given element, or |
| * <code>null</code> if none. |
| * |
| * @param element object for which a background color is required |
| * @return the RGB of the background color for the given element, or |
| * <code>null</code> if none |
| */ |
| public static RGB getBackground(Object element) { |
| Color color = getPresentation().getBackground(element); |
| if (color != null) { |
| return color.getRGB(); |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the RGB of the background color for the given element, or |
| * <code>null</code> if none. |
| * |
| * @param element object for which a background color is required |
| * @param presentation presentation to use to retrieve color |
| * @return the RGB of the background color for the given element, or |
| * <code>null</code> if none |
| * @since 3.3 |
| */ |
| public static RGB getBackground(Object element, IDebugModelPresentation presentation) { |
| Color color = null; |
| if (presentation instanceof IColorProvider) { |
| IColorProvider colorProvider = (IColorProvider) presentation; |
| color = colorProvider.getBackground(element); |
| } else { |
| color = getPresentation().getBackground(element); |
| } |
| if (color != null) { |
| return color.getRGB(); |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the font data for the given element, or |
| * <code>null</code> if none. |
| * |
| * @param element object for which font data is required |
| * @return the font data for the given element, or |
| * <code>null</code> if none |
| */ |
| public static FontData getFont(Object element) { |
| Font font = getPresentation().getFont(element); |
| if (font != null) { |
| return font.getFontData()[0]; |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the font data for the given element, or |
| * <code>null</code> if none. |
| * |
| * @param element object for which font data is required |
| * @param presentation presentation to obtain font from |
| * @return the font data for the given element, or |
| * <code>null</code> if none |
| * @since 3.3 |
| */ |
| public static FontData getFont(Object element, IDebugModelPresentation presentation) { |
| Font font = null; |
| if (presentation instanceof IFontProvider) { |
| IFontProvider provider = (IFontProvider) presentation; |
| font = provider.getFont(element); |
| } else { |
| font = getPresentation().getFont(element); |
| } |
| if (font != null) { |
| return font.getFontData()[0]; |
| } |
| return null; |
| } |
| } |