| /******************************************************************************* |
| * Copyright (c) 2004, 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.wst.css.ui.internal.image; |
| |
| |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.resource.ImageRegistry; |
| import org.eclipse.jface.resource.JFaceResources; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.ui.plugin.AbstractUIPlugin; |
| import org.eclipse.wst.css.ui.internal.CSSUIPlugin; |
| import org.eclipse.wst.css.ui.internal.editor.CSSEditorPluginImages; |
| |
| |
| public class CSSImageHelper { |
| private static CSSImageHelper fInstance = null; |
| |
| /** |
| * singleton |
| */ |
| public synchronized static CSSImageHelper getInstance() { |
| if (fInstance == null) { |
| fInstance = new CSSImageHelper(); |
| } |
| return fInstance; |
| } |
| |
| private HashMap fImageDescRegistry = null; // save a descriptor for each image |
| private Map fTypeMap = null; |
| |
| /** |
| * |
| */ |
| private CSSImageHelper() { |
| super(); |
| } |
| |
| /** |
| * |
| */ |
| private Image createImage(String resource) { |
| ImageDescriptor desc = AbstractUIPlugin.imageDescriptorFromPlugin(CSSUIPlugin.ID, resource); |
| Image image = null; |
| |
| if (desc == null) { |
| desc = ImageDescriptor.getMissingImageDescriptor(); |
| image = desc.createImage(); |
| } else { |
| image = desc.createImage(); |
| getImageRegistry().put(resource, image); |
| } |
| |
| return image; |
| } |
| |
| /** |
| * Creates an image descriptor from the given imageFilePath and adds the |
| * image descriptor to the image descriptor registry. If an image |
| * descriptor could not be created, the default "missing" image descriptor |
| * is returned but not added to the image descriptor registry. |
| * |
| * @param imageFilePath |
| * @return ImageDescriptor image descriptor for imageFilePath or default |
| * "missing" image descriptor if resource could not be found |
| */ |
| private ImageDescriptor createImageDescriptor(String imageFilePath) { |
| ImageDescriptor imageDescriptor = AbstractUIPlugin.imageDescriptorFromPlugin(CSSUIPlugin.ID, imageFilePath); |
| if (imageDescriptor != null) { |
| getImageDescriptorRegistry().put(imageFilePath, imageDescriptor); |
| } else { |
| imageDescriptor = ImageDescriptor.getMissingImageDescriptor(); |
| } |
| |
| return imageDescriptor; |
| } |
| |
| /** |
| * by type |
| */ |
| public Image getImage(CSSImageType type) { |
| if (fTypeMap == null) { |
| fTypeMap = new HashMap(); |
| fTypeMap.put(CSSImageType.STYLESHEET, CSSEditorPluginImages.IMG_OBJ_STYLESHEET); |
| |
| fTypeMap.put(CSSImageType.RULE_CHARSET, CSSEditorPluginImages.IMG_OBJ_RULE_CHARSET); |
| fTypeMap.put(CSSImageType.RULE_FONTFACE, CSSEditorPluginImages.IMG_OBJ_RULE_FONTFACE); |
| fTypeMap.put(CSSImageType.RULE_IMPORT, CSSEditorPluginImages.IMG_OBJ_RULE_IMPORT); |
| fTypeMap.put(CSSImageType.RULE_MEDIA, CSSEditorPluginImages.IMG_OBJ_RULE_MEDIA); |
| fTypeMap.put(CSSImageType.RULE_PAGE, CSSEditorPluginImages.IMG_OBJ_RULE_PAGE); |
| fTypeMap.put(CSSImageType.RULE_STYLE, CSSEditorPluginImages.IMG_OBJ_RULE_STYLE); |
| fTypeMap.put(CSSImageType.RULE_UNKNOWN, CSSEditorPluginImages.IMG_OBJ_RULE_UNKNOWN); |
| |
| fTypeMap.put(CSSImageType.SELECTOR_CLASS, CSSEditorPluginImages.IMG_OBJ_SELECTOR_CLASS); |
| fTypeMap.put(CSSImageType.SELECTOR_ID, CSSEditorPluginImages.IMG_OBJ_SELECTOR_ID); |
| fTypeMap.put(CSSImageType.SELECTOR_PSEUDO, CSSEditorPluginImages.IMG_OBJ_SELECTOR_PSEUDO); |
| fTypeMap.put(CSSImageType.SELECTOR_TAG, CSSEditorPluginImages.IMG_OBJ_SELECTOR_TAG); |
| fTypeMap.put(CSSImageType.SELECTOR_LINK, CSSEditorPluginImages.IMG_OBJ_SELECTOR_LINK); |
| fTypeMap.put(CSSImageType.SELECTOR_DEFAULT, CSSEditorPluginImages.IMG_OBJ_SELECTOR_DEFAULT); |
| |
| fTypeMap.put(CSSImageType.VALUE_FUNCTION, CSSEditorPluginImages.IMG_OBJ_VALUE_FUNCTION); |
| fTypeMap.put(CSSImageType.VALUE_NUMBER, CSSEditorPluginImages.IMG_OBJ_VALUE_NUMBER); |
| fTypeMap.put(CSSImageType.VALUE_STRING, CSSEditorPluginImages.IMG_OBJ_VALUE_STRING); |
| |
| fTypeMap.put(CSSImageType.CATEGORY_AURAL, CSSEditorPluginImages.IMG_OBJ_CATEGORY_AURAL); |
| fTypeMap.put(CSSImageType.CATEGORY_BOX, CSSEditorPluginImages.IMG_OBJ_CATEGORY_BOX); |
| fTypeMap.put(CSSImageType.CATEGORY_COLORANDBACKGROUND, CSSEditorPluginImages.IMG_OBJ_CATEGORY_COLORANDBACKGROUND); |
| fTypeMap.put(CSSImageType.CATEGORY_CONTENT, CSSEditorPluginImages.IMG_OBJ_CATEGORY_CONTENT); |
| fTypeMap.put(CSSImageType.CATEGORY_FONT, CSSEditorPluginImages.IMG_OBJ_CATEGORY_FONT); |
| fTypeMap.put(CSSImageType.CATEGORY_PAGE, CSSEditorPluginImages.IMG_OBJ_CATEGORY_PAGE); |
| fTypeMap.put(CSSImageType.CATEGORY_TABLES, CSSEditorPluginImages.IMG_OBJ_CATEGORY_TABLES); |
| fTypeMap.put(CSSImageType.CATEGORY_TEXT, CSSEditorPluginImages.IMG_OBJ_CATEGORY_TEXT); |
| fTypeMap.put(CSSImageType.CATEGORY_UI, CSSEditorPluginImages.IMG_OBJ_CATEGORY_UI); |
| fTypeMap.put(CSSImageType.CATEGORY_VISUAL, CSSEditorPluginImages.IMG_OBJ_CATEGORY_VISUAL); |
| fTypeMap.put(CSSImageType.CATEGORY_DEFAULT, CSSEditorPluginImages.IMG_OBJ_CATEGORY_DEFAULT); |
| } |
| return getImage((String) fTypeMap.get(type)); |
| } |
| |
| /** |
| * by relative path(from here) |
| */ |
| public Image getImage(String resource) { |
| if (resource == null) { |
| return null; |
| } |
| Image image = getImageRegistry().get(resource); |
| if (image == null) { |
| image = createImage(resource); |
| } |
| return image; |
| } |
| |
| /** |
| * Retrieves the image descriptor associated with resource from the image |
| * descriptor registry. If the image descriptor cannot be retrieved, |
| * attempt to find and load the image descriptor at the location specified |
| * in resource. |
| * |
| * @param resource |
| * the image descriptor to retrieve |
| * @return ImageDescriptor the image descriptor assocated with resource or |
| * the default "missing" image descriptor if one could not be |
| * found |
| */ |
| public ImageDescriptor getImageDescriptor(String resource) { |
| ImageDescriptor imageDescriptor = null; |
| Object o = getImageDescriptorRegistry().get(resource); |
| if (o == null) { |
| // create a descriptor |
| imageDescriptor = createImageDescriptor(resource); |
| } else { |
| imageDescriptor = (ImageDescriptor) o; |
| } |
| return imageDescriptor; |
| } |
| |
| /** |
| * Returns the image descriptor registry for this plugin. |
| * |
| * @return HashMap - image descriptor registry for this plugin |
| */ |
| private HashMap getImageDescriptorRegistry() { |
| if (fImageDescRegistry == null) |
| fImageDescRegistry = new HashMap(); |
| return fImageDescRegistry; |
| } |
| |
| private ImageRegistry getImageRegistry() { |
| return JFaceResources.getImageRegistry(); |
| } |
| } |