1 /* 2 * Copyright (c) 2013, 2018, 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.PickRay; 30 import com.sun.javafx.geom.transform.BaseTransform; 31 import com.sun.javafx.scene.input.PickResultChooser; 32 import com.sun.javafx.sg.prism.NGNode; 33 import com.sun.javafx.util.Utils; 34 import javafx.scene.Camera; 35 import javafx.scene.Node; 36 import javafx.scene.SubScene; 37 38 /** 39 * Used to access internal methods of SubScene. 40 */ 41 public class SubSceneHelper extends NodeHelper { 42 43 private static final SubSceneHelper theInstance; 44 private static SubSceneAccessor subSceneAccessor; 45 46 static { 47 theInstance = new SubSceneHelper(); 48 Utils.forceInit(SubScene.class); 49 } 50 51 private static SubSceneHelper getInstance() { 52 return theInstance; 53 } 54 55 public static void initHelper(SubScene subScene) { 56 setHelper(subScene, getInstance()); 57 } 58 59 public static void superProcessCSS(Node node) { 60 ((SubSceneHelper) getHelper(node)).superProcessCSSImpl(node); 61 } 62 63 @Override 64 protected NGNode createPeerImpl(Node node) { 65 return subSceneAccessor.doCreatePeer(node); 66 } 67 68 @Override 69 protected void updatePeerImpl(Node node) { 70 super.updatePeerImpl(node); 71 subSceneAccessor.doUpdatePeer(node); 72 } 73 74 @Override 75 protected BaseBounds computeGeomBoundsImpl(Node node, BaseBounds bounds, 76 BaseTransform tx) { 77 return subSceneAccessor.doComputeGeomBounds(node, bounds, tx); 78 } 79 80 @Override 81 protected boolean computeContainsImpl(Node node, double localX, double localY) { 82 return subSceneAccessor.doComputeContains(node, localX, localY); 83 } 84 85 void superProcessCSSImpl(Node node) { 86 super.processCSSImpl(node); 87 } 88 89 protected void processCSSImpl(Node node) { 90 subSceneAccessor.doProcessCSS(node); 91 } 92 93 @Override 94 protected void pickNodeLocalImpl(Node node, PickRay localPickRay, 95 PickResultChooser result) { 96 subSceneAccessor.doPickNodeLocal(node, localPickRay, result); 97 } 98 99 public static boolean isDepthBuffer(SubScene subScene) { 100 return subSceneAccessor.isDepthBuffer(subScene); 101 } 102 103 public static Camera getEffectiveCamera(SubScene subScene) { 104 return subSceneAccessor.getEffectiveCamera(subScene); 105 } 106 107 public static void setSubSceneAccessor(final SubSceneAccessor newAccessor) { 108 if (subSceneAccessor != null) { 109 throw new IllegalStateException(); 110 } 111 112 subSceneAccessor = newAccessor; 113 } 114 115 public interface SubSceneAccessor { 116 NGNode doCreatePeer(Node node); 117 void doUpdatePeer(Node node); 118 BaseBounds doComputeGeomBounds(Node node, BaseBounds bounds, BaseTransform tx); 119 boolean doComputeContains(Node node, double localX, double localY); 120 void doProcessCSS(Node node); 121 void doPickNodeLocal(Node node, PickRay localPickRay, 122 PickResultChooser result); 123 boolean isDepthBuffer(SubScene subScene); 124 Camera getEffectiveCamera(SubScene subScene); 125 } 126 127 }