1 files changed, 8 insertions, 0 deletions
diff --git a/src/net/java/joglutils/msg/elements/ProjectionMatrixElement.java b/src/net/java/joglutils/msg/elements/ProjectionMatrixElement.java
index dd70ca3..4635a83 100644
--- a/src/net/java/joglutils/msg/elements/ProjectionMatrixElement.java
+++ b/src/net/java/joglutils/msg/elements/ProjectionMatrixElement.java
@@ -50,13 +50,21 @@ public class ProjectionMatrixElement extends Element {
   public Element newInstance() {
     return new ProjectionMatrixElement();
   }
+  /** Returns the instance of this element in the passed State. */
   public static ProjectionMatrixElement getInstance(State state) {
     return (ProjectionMatrixElement) 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) {
     Element tmp = new ProjectionMatrixElement();
     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 matrix data
   protected Mat4f matrix;