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Diffstat (limited to 'src/net/java/joglutils/msg/elements/CoordinateElement.java')
-rw-r--r-- | src/net/java/joglutils/msg/elements/CoordinateElement.java | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/src/net/java/joglutils/msg/elements/CoordinateElement.java b/src/net/java/joglutils/msg/elements/CoordinateElement.java new file mode 100644 index 0000000..34b16bc --- /dev/null +++ b/src/net/java/joglutils/msg/elements/CoordinateElement.java @@ -0,0 +1,88 @@ +/* + * Copyright (c) 2007 Sun Microsystems, Inc. All Rights Reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * - Redistribution of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistribution in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * Neither the name of Sun Microsystems, Inc. or the names of + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * This software is provided "AS IS," without a warranty of any kind. ALL + * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, + * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A + * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN + * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR + * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR + * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR + * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR + * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE + * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, + * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF + * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. + * + * You acknowledge that this software is not designed or intended for use + * in the design, construction, operation or maintenance of any nuclear + * facility. + * + */ + +package net.java.joglutils.msg.elements; + +import java.nio.*; +import javax.media.opengl.*; + +import net.java.joglutils.msg.misc.*; + +/** Represents the current set of coordinates, which are assembled to + draw geometry. */ + +public class CoordinateElement extends Element { + // Boilerplate + private static StateIndex index = State.registerElementType(); + public StateIndex getStateIndex() { return index; } + public Element newInstance() { + return new CoordinateElement(); + } + public static CoordinateElement getInstance(State state) { + return (CoordinateElement) state.getElement(index); + } + public static void enable(State defaultState) { + CoordinateElement tmp = new CoordinateElement(); + defaultState.setElement(tmp.getStateIndex(), tmp); + } + + // The actual coordinate data + protected FloatBuffer coords; + + /** Sets the coordinate data in the passed state. */ + public static void set(State state, FloatBuffer coords) { + getInstance(state).setElt(coords); + } + + /** Returns the coordinate data in the passed state. */ + public static FloatBuffer get(State state) { + return getInstance(state).coords; + } + + public void push(State state) { + CoordinateElement prev = (CoordinateElement) getNextInStack(); + if (prev != null) { + // Pull down the data from the previous element + coords = prev.coords; + } + } + + /** Sets the coordinate data in this element. */ + public void setElt(FloatBuffer coords) { + this.coords = coords; + } +} |