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 com.sun.javafx.geom.BaseBounds; 29 import com.sun.javafx.geom.transform.BaseTransform; 30 import com.sun.javafx.jmx.MXNodeAlgorithm; 31 import com.sun.javafx.jmx.MXNodeAlgorithmContext; 32 import com.sun.javafx.sg.prism.NGNode; 33 import com.sun.javafx.util.Utils; 34 import javafx.scene.LightBase; 35 import javafx.scene.Node; 36 37 /** 38 * Used to access internal methods of LightBase. 39 */ 40 public class LightBaseHelper extends NodeHelper { 41 42 private static final LightBaseHelper theInstance; 43 private static LightBaseAccessor lightBaseAccessor; 44 45 static { 46 theInstance = new LightBaseHelper(); 47 Utils.forceInit(LightBase.class); 48 } 49 50 private static LightBaseHelper getInstance() { 51 return theInstance; 52 } 53 54 public static void initHelper(LightBase lightBase) { 55 setHelper(lightBase, getInstance()); 56 } 57 58 @Override 59 protected NGNode createPeerImpl(Node node) { 60 throw new UnsupportedOperationException("Applications should not extend the LightBase class directly."); 61 } 62 63 @Override 64 protected void updatePeerImpl(Node node) { 65 super.updatePeerImpl(node); 66 lightBaseAccessor.doUpdatePeer(node); 67 } 68 69 @Override 70 protected void markDirtyImpl(Node node, DirtyBits dirtyBit) { 71 super.markDirtyImpl(node, dirtyBit); 72 lightBaseAccessor.doMarkDirty(node, dirtyBit); 73 } 74 75 @Override 76 protected BaseBounds computeGeomBoundsImpl(Node node, BaseBounds bounds, 77 BaseTransform tx) { 78 return lightBaseAccessor.doComputeGeomBounds(node, bounds, tx); 79 } 80 81 @Override 82 protected boolean computeContainsImpl(Node node, double localX, double localY) { 83 return lightBaseAccessor.doComputeContains(node, localX, localY); 84 } 85 86 @Override 87 protected Object processMXNodeImpl(Node node, MXNodeAlgorithm alg, MXNodeAlgorithmContext ctx) { 88 return lightBaseAccessor.doProcessMXNode(node, alg, ctx); 89 } 90 91 public static void setLightBaseAccessor(final LightBaseAccessor newAccessor) { 92 if (lightBaseAccessor != null) { 93 throw new IllegalStateException(); 94 } 95 96 lightBaseAccessor = newAccessor; 97 } 98 99 public interface LightBaseAccessor { 100 void doMarkDirty(Node node, DirtyBits dirtyBit); 101 void doUpdatePeer(Node node); 102 BaseBounds doComputeGeomBounds(Node node, BaseBounds bounds, BaseTransform tx); 103 boolean doComputeContains(Node node, double localX, double localY); 104 Object doProcessMXNode(Node node, MXNodeAlgorithm alg, MXNodeAlgorithmContext ctx); 105 } 106 107 }