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