diff options
author | Harvey Harrison <[email protected]> | 2015-04-19 21:02:06 -0700 |
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committer | Harvey Harrison <[email protected]> | 2015-04-19 21:02:06 -0700 |
commit | 7a2e20caac9db6f789a7b3fab344b9758af45335 (patch) | |
tree | b5236ff2570178de356eab569225108948eb4d30 /src/javax/media/j3d/BoundingLeaf.java | |
parent | f76ce302c4bb2a9f03bbee571ec5d05c29633023 (diff) |
j3dcore: flatten the directory structure a bit
Signed-off-by: Harvey Harrison <[email protected]>
Diffstat (limited to 'src/javax/media/j3d/BoundingLeaf.java')
-rw-r--r-- | src/javax/media/j3d/BoundingLeaf.java | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/src/javax/media/j3d/BoundingLeaf.java b/src/javax/media/j3d/BoundingLeaf.java new file mode 100644 index 0000000..3037abe --- /dev/null +++ b/src/javax/media/j3d/BoundingLeaf.java @@ -0,0 +1,186 @@ +/* + * Copyright 1997-2008 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 BoundingLeaf node defines a bounding region object that can be + * referenced by other nodes to define a region of influence + * (Fog and Light nodes), an application region (Background, Clip, + * and Soundscape nodes), or a scheduling region (Sound and + * Behavior nodes). The bounding region is defined in the local + * coordinate system of the BoundingLeaf node. A reference to a + * BoundingLeaf node can be used in place + * of a locally defined bounds object for any of the aforementioned regions. + * <P> + * This allows an application to specify a bounding region in one coordinate system + * (the local coordinate system of the BoundingLeaf node) other than the local + * coordinate system of the node that references the bounds. For an example of how + * this might be used, consider a closed room with a number of track lights. Each + * light can move independent of the other lights and, as such, needs its own local + * coordinate system. However, the bounding volume is used by all the lights in the + * boundary of the room, which doesn't move when the lights move. In this example, + * the BoundingLeaf node allows the bounding region to be defined in the local + * coordinate system of the room, rather than in the local coordinate system of a + * particular light. All lights can then share this single bounding volume. + */ +public class BoundingLeaf extends Leaf { + /** + * Specifies that this BoundingLeaf node allows read access to its + * bounding region object. + */ + public static final int + ALLOW_REGION_READ = CapabilityBits.BOUNDING_LEAF_ALLOW_REGION_READ; + + /** + * Specifies that this BoundingLeaf node allows write access to its + * bounding region object. + */ + public static final int + ALLOW_REGION_WRITE = CapabilityBits.BOUNDING_LEAF_ALLOW_REGION_WRITE; + + // Array for setting default read capabilities + private static final int[] readCapabilities = { + ALLOW_REGION_READ + }; + + /** + * Constructs a BoundingLeaf node with a null (empty) bounding region. + */ + public BoundingLeaf() { + // set default read capabilities + setDefaultReadCapabilities(readCapabilities); + + ((BoundingLeafRetained)this.retained).createBoundingLeaf(); + } + + /** + * Constructs a BoundingLeaf node with the specified bounding region. + * @param region the bounding region of this leaf node + */ + public BoundingLeaf(Bounds region) { + // set default read capabilities + setDefaultReadCapabilities(readCapabilities); + + ((BoundingLeafRetained)this.retained).createBoundingLeaf(); + ((BoundingLeafRetained)this.retained).initRegion(region); + } + + /** + * Sets this BoundingLeaf node's bounding region. + * @param region the bounding region of this leaf node + * @exception CapabilityNotSetException if appropriate capability is + * not set and this object is part of live or compiled scene graph + */ + public void setRegion(Bounds region) { + if (isLiveOrCompiled()) + if(!this.getCapability(ALLOW_REGION_WRITE)) + throw new CapabilityNotSetException(J3dI18N.getString("BoundingLeaf0")); + + if (isLive()) + ((BoundingLeafRetained)this.retained).setRegion(region); + else + ((BoundingLeafRetained)this.retained).initRegion(region); + } + + /** + * Retrieves this BoundingLeaf's bounding region. + * @return the bounding region of this leaf node + * @exception CapabilityNotSetException if appropriate capability is + * not set and this object is part of live or compiled scene graph + */ + public Bounds getRegion() { + if (isLiveOrCompiled()) + if(!this.getCapability(ALLOW_REGION_READ)) + throw new CapabilityNotSetException(J3dI18N.getString("BoundingLeaf1")); + + return ((BoundingLeafRetained)this.retained).getRegion(); + } + + /** + * Creates the BoundingLeafRetained object that this + * BoundingLeaf object will point to. + */ + @Override + void createRetained() { + this.retained = new BoundingLeafRetained(); + this.retained.setSource(this); + } + + /** + * Used to create a new instance of the node. This routine is called + * by <code>cloneTree</code> to duplicate the current node. + * @param forceDuplicate when set to <code>true</code>, causes the + * <code>duplicateOnCloneTree</code> flag to be ignored. When + * <code>false</code>, the value of each node's + * <code>duplicateOnCloneTree</code> 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) { + BoundingLeaf bl = new BoundingLeaf(); + bl.duplicateNode(this, forceDuplicate); + return bl; + } + + + + /** + * Copies all BoundingLeaf information from + * <code>originalNode</code> into + * the current node. This method is called from the + * <code>cloneNode</code> method which is, in turn, called by the + * <code>cloneTree</code> method.<P> + * + * @param originalNode the original node to duplicate. + * @param forceDuplicate when set to <code>true</code>, causes the + * <code>duplicateOnCloneTree</code> flag to be ignored. When + * <code>false</code>, the value of each node's + * <code>duplicateOnCloneTree</code> variable determines whether + * NodeComponent data is duplicated or copied. + * + * @exception RestrictedAccessException if this object is part of a live + * or compiled scenegraph. + * + * @see Node#duplicateNode + * @see Node#cloneTree + * @see NodeComponent#setDuplicateOnCloneTree + */ + @Override + void duplicateAttributes(Node originalNode, boolean forceDuplicate) { + super.duplicateAttributes(originalNode, forceDuplicate); + + ((BoundingLeafRetained) retained).initRegion( + ((BoundingLeafRetained) originalNode.retained).getRegion()); + } + +} |