sdedic commented on a change in pull request #3414: URL: https://github.com/apache/netbeans/pull/3414#discussion_r784836589
########## File path: java/java.lsp.server/nbcode/integration/src/org/netbeans/modules/nbcode/integration/UIDefaultsIconMetadata.java ########## @@ -0,0 +1,357 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.netbeans.modules.nbcode.integration; + +import java.awt.Component; +import java.awt.EventQueue; +import java.awt.Graphics; +import java.awt.HeadlessException; +import java.awt.Image; +import java.awt.MediaTracker; +import java.awt.Toolkit; +import java.awt.Transparency; +import java.awt.image.BufferedImage; +import java.awt.image.ColorModel; +import java.awt.image.ImageObserver; +import java.awt.image.WritableRaster; +import java.beans.PropertyChangeEvent; +import java.beans.PropertyChangeListener; +import java.net.URI; +import java.net.URISyntaxException; +import java.net.URL; +import java.util.Enumeration; +import java.util.Hashtable; +import java.util.logging.Level; +import java.util.logging.Logger; +import javax.swing.Icon; +import javax.swing.ImageIcon; +import javax.swing.UIDefaults; +import javax.swing.UIDefaults.ActiveValue; +import javax.swing.UIDefaults.LazyValue; +import javax.swing.UIManager; +import org.openide.modules.OnStart; +import org.openide.util.ImageUtilities; + +/** + * Goes through UIDefaults and replaces Icons and Images with variants that + * return image's URL from the 'url' property. + * @author sdedic + */ +@OnStart +public class UIDefaultsIconMetadata implements Runnable { + private static final Logger LOG = Logger.getLogger(UIDefaultsIconMetadata.class.getName()); + + // for diagnostic purposes only + public static final String PROP_ORIGINAL_ICON = "originalIcon"; // NOI18N + // for diagnostic purposes only + public static final String PROP_ORIGINAL_IMAGE = "originalImage"; // NOI18N + + private static final String URN_DEFAULTS_PREFIX = "uidefaults:"; // NOI18N + + private static Object wrapImage(String key, Image image, Icon icon, Object... meta) { + Object o = image.getProperty(ImageUtilities.PROPERTY_ID, null); // NOI18N + if (o instanceof URL) { + return image; + } + + o = image.getProperty(ImageUtilities.PROPERTY_ID, null); + if (o instanceof String || o instanceof URI) { + return image; + } else { + + Hashtable props = new Hashtable(); + for (int i = 0; i < meta.length; i+= 2) { + props.put(meta[i], meta[i+1]); + } + props.put(ImageUtilities.PROPERTY_ID, URN_DEFAULTS_PREFIX + key); + return createNew(image, icon, props); + } + } + + @Override + public void run() { + EventQueue.invokeLater(() -> { + replaceIconsAndImages(UIManager.getDefaults()); + }); + } + + static void replaceIconsAndImages(UIDefaults defs) { Review comment: @eirikbakke note that this 'replacement' solves also icons queried by Swing codebase that might flow through the system: even if Swing calls `getIcon()`, it gets a wrapper ... and if that image/icon is passed around the meta-data are present. Other approach would be to introduce a SPI, that would supply metadata (in general) for an image/icon. ImageUtilities could ensure the SPIs would be called just once/instance (as the images should be immutable anyway). Then wrappers could just vanish from UIDefaultsIconMetadata. The drawback would be that if one instance is shared into multiple keys, the metadata (icon id) provider would just pick one of the keys as an identification - I don't know how much could that be an issue. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] For further information about the NetBeans mailing lists, visit: https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists
