Исходный код

001/*
002 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.  Oracle designates this
008 * particular file as subject to the "Classpath" exception as provided
009 * by Oracle in the LICENSE file that accompanied this code.
010 *
011 * This code is distributed in the hope that it will be useful, but WITHOUT
012 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
013 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
014 * version 2 for more details (a copy is included in the LICENSE file that
015 * accompanied this code).
016 *
017 * You should have received a copy of the GNU General Public License version
018 * 2 along with this work; if not, write to the Free Software Foundation,
019 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
020 *
021 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
022 * or visit www.oracle.com if you need additional information or have any
023 * questions.
024 */
025
026package javafx.scene.shape;
027
028import com.sun.javafx.geom.BaseBounds;
029import com.sun.javafx.geom.PickRay;
030import com.sun.javafx.scene.input.PickResultChooser;
031import com.sun.javafx.sg.PGTriangleMesh;
032import javafx.application.ConditionalFeature;
033import javafx.application.Platform;
034import javafx.beans.property.BooleanProperty;
035import javafx.beans.property.SimpleBooleanProperty;
036import javafx.scene.Node;
037import sun.util.logging.PlatformLogger;
038
039/**
040 * Base class for representing a 3D geometric surface.
041 *
042 * Note that this is a conditional feature. See
043 * {@link javafx.application.ConditionalFeature#SCENE3D ConditionalFeature.SCENE3D}
044 * for more information.
045 * 
046 * @since JavaFX 8
047 */
048public abstract class Mesh {
049
050    protected Mesh() {
051        if (!Platform.isSupported(ConditionalFeature.SCENE3D)) {
052            String logname = Mesh.class.getName();
053            PlatformLogger.getLogger(logname).warning("System can't support "
054                                                      + "ConditionalFeature.SCENE3D");
055        }
056    }
057    
058    // Mesh isn't a Node. It can't use the standard dirtyBits pattern that is 
059    // in Node
060    // TODO: 3D - Material and Mesh have similar pattern. We should look into creating
061    // a "NodeComponent" class if more non-Node classes are needed.
062    
063    // Material isn't a Node. It can't use the standard dirtyBits pattern that is 
064    // in Node
065    private final BooleanProperty dirty = new SimpleBooleanProperty(true);
066
067    final boolean isDirty() {
068        return dirty.getValue();
069    }
070
071    void setDirty(boolean value) {
072        dirty.setValue(value);
073    }
074
075    final BooleanProperty dirtyProperty() {
076        return dirty;
077    }
078
079    // We only support one type of mesh for FX 8.
080    abstract PGTriangleMesh getPGMesh();
081    abstract void impl_updatePG();
082
083    abstract BaseBounds computeBounds(BaseBounds b);
084
085    /**
086     * Picking implementation.
087     * @param pickRay The pick ray
088     * @param pickResult The pick result to be updated (if a closer intersection is found)
089     * @param candidate The Node that owns this mesh to be filled in the pick
090     *                  result in case a closer intersection is found
091     * @param cullFace The cull face of the node that owns this mesh
092     * @param reportFace Whether to report the hit face
093     * @return true if the pickRay intersects this mesh (regardless of whether
094     *              the pickResult has been updated)
095     *
096     * @treatAsPrivate implementation detail
097     * @deprecated This is an internal API that is not intended for use and will be removed in the next version
098     */
099    @Deprecated
100    abstract protected boolean impl_computeIntersects(PickRay pickRay,
101            PickResultChooser pickResult, Node candidate, CullFace cullFace,
102            boolean reportFace);
103}