1 /* 2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.javafx.scene; 27 28 import static com.sun.javafx.scene.NodeHelper.setHelper; 29 import com.sun.javafx.sg.prism.NGNode; 30 import com.sun.javafx.util.Utils; 31 import javafx.scene.Node; 32 import javafx.scene.image.ImageView; 33 34 /** 35 * Used to access internal methods of ImageView. 36 */ 37 public class ImageViewHelper extends NodeHelper { 38 39 private static final ImageViewHelper theInstance; 40 private static ImageViewAccessor imageViewAccessor; 41 42 static { 43 theInstance = new ImageViewHelper(); 44 Utils.forceInit(ImageView.class); 45 } 46 47 private static ImageViewHelper getInstance() { 48 return theInstance; 49 } 50 51 public static void initHelper(ImageView imageView) { 52 setHelper(imageView, getInstance()); 53 } 54 55 @Override 56 protected NGNode createPeerImpl(Node node) { 57 return imageViewAccessor.doCreatePeer(node); 58 } 59 60 @Override 61 protected void updatePeerImpl(Node node) { 62 super.updatePeerImpl(node); 63 imageViewAccessor.doUpdatePeer(node); 64 } 65 66 public static void setImageViewAccessor(final ImageViewAccessor newAccessor) { 67 if (imageViewAccessor != null) { 68 throw new IllegalStateException(); 69 } 70 71 imageViewAccessor = newAccessor; 72 } 73 74 public interface ImageViewAccessor { 75 NGNode doCreatePeer(Node node); 76 void doUpdatePeer(Node node); 77 } 78 79 }