Added extensible action method mechanism via ActionTable, decoupling

Action implementations from the set of Nodes in the library.
Refactored OpenGL rendering into node instances to potentially share
more code among different Action subclasses.


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/joglutils/trunk@45 83d24430-9974-4f80-8418-2cc3294053b9

1 files changed, 8 insertions, 0 deletions

diff --git a/src/net/java/joglutils/msg/elements/TextureCoordinateElement.java b/src/net/java/joglutils/msg/elements/TextureCoordinateElement.java
index 6d36c6c..8d24bfc 100644
--- a/src/net/java/joglutils/msg/elements/TextureCoordinateElement.java
+++ b/src/net/java/joglutils/msg/elements/TextureCoordinateElement.java
@@ -52,13 +52,21 @@ public class TextureCoordinateElement extends Element {
   public Element newInstance() {
     return new TextureCoordinateElement();
   }
+  /** Returns the instance of this element in the passed State. */
   public static TextureCoordinateElement getInstance(State state) {
     return (TextureCoordinateElement) state.getElement(index);
   }
+  /** Enables this element in the passed state, which should be the
+      default for a given action. */
   public static void enable(State defaultState) {
     TextureCoordinateElement tmp = new TextureCoordinateElement();
     defaultState.setElement(tmp.getStateIndex(), tmp);
   }
+  /** Indicates whether this element is enabled in the given default
+      state for a particular action. */
+  public static boolean isEnabled(State state) {
+    return (state.getDefaults().getElement(index) != null);
+  }
 
   // The actual coordinate data
   protected FloatBuffer coords;