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.shape; 27 28 import com.sun.javafx.geom.BaseBounds; 29 import com.sun.javafx.geom.transform.BaseTransform; 30 import com.sun.javafx.scene.DirtyBits; 31 import com.sun.javafx.scene.NodeHelper; 32 import com.sun.javafx.sg.prism.NGNode; 33 import com.sun.javafx.sg.prism.NGShape; 34 import com.sun.javafx.util.Utils; 35 import javafx.scene.Node; 36 import javafx.scene.paint.Paint; 37 import javafx.scene.shape.Shape; 38 39 /** 40 * Used to access internal methods of Shape. 41 */ 42 public abstract class ShapeHelper extends NodeHelper { 43 private static ShapeAccessor shapeAccessor; 44 45 static { 46 Utils.forceInit(Shape.class); 47 } 48 49 /* 50 * Static helper methods for cases where the implementation is done in an 51 * instance method that is overridden by subclasses. 52 * These methods exist in the base class only. 53 */ 54 55 public static Paint cssGetFillInitialValue(Shape shape) { 56 return ((ShapeHelper) getHelper(shape)).cssGetFillInitialValueImpl(shape); 57 } 58 59 public static Paint cssGetStrokeInitialValue(Shape shape) { 60 return ((ShapeHelper) getHelper(shape)).cssGetStrokeInitialValueImpl(shape); 61 } 62 63 public static com.sun.javafx.geom.Shape configShape(Shape shape) { 64 return ((ShapeHelper) getHelper(shape)).configShapeImpl(shape); 65 } 66 67 /* 68 * Methods that will be overridden by subclasses 69 */ 70 71 @Override 72 protected void updatePeerImpl(Node node) { 73 super.updatePeerImpl(node); 74 shapeAccessor.doUpdatePeer(node); 75 } 76 77 @Override 78 protected void markDirtyImpl(Node node, DirtyBits dirtyBit) { 79 shapeAccessor.doMarkDirty(node, dirtyBit); 80 super.markDirtyImpl(node, dirtyBit); 81 } 82 83 @Override 84 protected BaseBounds computeGeomBoundsImpl(Node node, BaseBounds bounds, 85 BaseTransform tx) { 86 return shapeAccessor.doComputeGeomBounds(node, bounds, tx); 87 } 88 89 @Override 90 protected boolean computeContainsImpl(Node node, double localX, double localY) { 91 return shapeAccessor.doComputeContains(node, localX, localY); 92 } 93 94 protected Paint cssGetFillInitialValueImpl(Shape shape) { 95 return shapeAccessor.doCssGetFillInitialValue(shape); 96 } 97 98 protected Paint cssGetStrokeInitialValueImpl(Shape shape) { 99 return shapeAccessor.doCssGetStrokeInitialValue(shape); 100 } 101 102 protected abstract com.sun.javafx.geom.Shape configShapeImpl(Shape shape); 103 104 /* 105 * Methods used by Shape (base) class only 106 */ 107 108 public static NGShape.Mode getMode(Shape shape) { 109 return shapeAccessor.getMode(shape); 110 } 111 112 public static void setMode(Shape shape, NGShape.Mode mode) { 113 shapeAccessor.setMode(shape, mode); 114 } 115 116 public static void setShapeChangeListener(Shape shape, Runnable listener) { 117 shapeAccessor.setShapeChangeListener(shape, listener); 118 } 119 120 public static void setShapeAccessor(final ShapeAccessor newAccessor) { 121 if (shapeAccessor != null) { 122 throw new IllegalStateException(); 123 } 124 125 shapeAccessor = newAccessor; 126 } 127 128 public interface ShapeAccessor { 129 void doUpdatePeer(Node node); 130 void doMarkDirty(Node node, DirtyBits dirtyBit); 131 BaseBounds doComputeGeomBounds(Node node, BaseBounds bounds, BaseTransform tx); 132 boolean doComputeContains(Node node, double localX, double localY); 133 Paint doCssGetFillInitialValue(Shape shape); 134 Paint doCssGetStrokeInitialValue(Shape shape); 135 NGShape.Mode getMode(Shape shape); 136 void setMode(Shape shape, NGShape.Mode mode); 137 void setShapeChangeListener(Shape shape, Runnable listener); 138 } 139 140 }