From 7a2e20caac9db6f789a7b3fab344b9758af45335 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Sun, 19 Apr 2015 21:02:06 -0700 Subject: j3dcore: flatten the directory structure a bit Signed-off-by: Harvey Harrison --- src/javax/media/j3d/SharedGroup.java | 168 +++++++++++++++++++++++++++++++++++ 1 file changed, 168 insertions(+) create mode 100644 src/javax/media/j3d/SharedGroup.java (limited to 'src/javax/media/j3d/SharedGroup.java') diff --git a/src/javax/media/j3d/SharedGroup.java b/src/javax/media/j3d/SharedGroup.java new file mode 100644 index 0000000..8d0fd7c --- /dev/null +++ b/src/javax/media/j3d/SharedGroup.java @@ -0,0 +1,168 @@ +/* + * Copyright 1996-2008 Sun Microsystems, Inc. All Rights Reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Sun designates this + * particular file as subject to the "Classpath" exception as provided + * by Sun in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +package javax.media.j3d; + +/** + * The SharedGroup provides the ability to manipulate an + * instanced scene graph. + * A SharedGroup node allows multiple Link leaf nodes to share its + * subgraph according to the following semantics: + *

+ * + * A shared subgraph may contain any group node, except an embedded + * SharedGroup node (SharedGroup nodes cannot have parents). However, + * only the following leaf nodes may appear in a shared subgraph: + *

+ * + * An IllegalSharingException is thrown if any of the following leaf nodes + * appear in a shared subgraph:

+ *

+ *

+ * + * @see IllegalSharingException + */ + +public class SharedGroup extends Group { + + /** + * Specifies that this SharedGroup node allows reading the + * list of links that refer to this node. + * + * @since Java 3D 1.3 + */ + public static final int + ALLOW_LINK_READ = CapabilityBits.SHARED_GROUP_ALLOW_LINK_READ; + + // Array for setting default read capabilities + private static final int[] readCapabilities = { + ALLOW_LINK_READ + }; + + /** + * Constructs and initializes a new SharedGroup node object. + */ + public SharedGroup() { + // set default read capabilities + setDefaultReadCapabilities(readCapabilities); + } + + + /** + * Returns the list of Link nodes that refer to this SharedGroup node. + * @return An array of Link nodes that refer to this SharedGroup node. + * + * @since Java 3D 1.3 + */ + public Link[] getLinks() { + if (isLiveOrCompiled()) { + if (!this.getCapability(ALLOW_LINK_READ)) { + throw new CapabilityNotSetException(J3dI18N.getString("SharedGroup1")); + } + } + return ((SharedGroupRetained)retained).getLinks(); + } + + + /** + * Creates the retained mode SharedGroupRetained object that this + * SharedGroup component object will point to. + */ + @Override + void createRetained() { + this.retained = new SharedGroupRetained(); + this.retained.setSource(this); + } + + + /** + * Compiles the source SharedGroup associated with this object and + * creates and caches a compiled scene graph. + * @exception SceneGraphCycleException if there is a cycle in the + * scene graph + * @exception RestrictedAccessException if the method is called + * when this object is part of a live scene graph. + */ + public void compile() { + if (isLive()) { + throw new RestrictedAccessException(J3dI18N.getString("SharedGroup0")); + } + + if (isCompiled() == false) { + // will throw SceneGraphCycleException if there is a cycle + // in the scene graph + checkForCycle(); + + ((SharedGroupRetained)this.retained).compile(); + } + } + + + /** + * Used to create a new instance of the node. This routine is called + * by cloneTree to duplicate the current node. + * @param forceDuplicate when set to true, causes the + * duplicateOnCloneTree flag to be ignored. When + * false, the value of each node's + * duplicateOnCloneTree variable determines whether + * NodeComponent data is duplicated or copied. + * + * @see Node#cloneTree + * @see Node#cloneNode + * @see Node#duplicateNode + * @see NodeComponent#setDuplicateOnCloneTree + */ + @Override + public Node cloneNode(boolean forceDuplicate) { + SharedGroup sg = new SharedGroup(); + sg.duplicateNode(this, forceDuplicate); + return sg; + } +} -- cgit v1.2.3