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

8 files changed, 58 insertions, 0 deletions

diff --git a/src/net/java/joglutils/msg/elements/BlendElement.java b/src/net/java/joglutils/msg/elements/BlendElement.java
index 2a0d488..422811f 100644
--- a/src/net/java/joglutils/msg/elements/BlendElement.java
+++ b/src/net/java/joglutils/msg/elements/BlendElement.java
@@ -63,6 +63,11 @@ public class BlendElement extends Element {
     BlendElement tmp = new BlendElement();
     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);
+  }
 
   // These defaults match those in the Blend node -- is there a better way of factoring them out?
 
diff --git a/src/net/java/joglutils/msg/elements/ColorElement.java b/src/net/java/joglutils/msg/elements/ColorElement.java
index a725d61..a3a92d4 100644
--- a/src/net/java/joglutils/msg/elements/ColorElement.java
+++ b/src/net/java/joglutils/msg/elements/ColorElement.java
@@ -62,6 +62,11 @@ public class ColorElement extends Element {
     ColorElement tmp = new ColorElement();
     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 color data
   protected FloatBuffer colors;
diff --git a/src/net/java/joglutils/msg/elements/CoordinateElement.java b/src/net/java/joglutils/msg/elements/CoordinateElement.java
index 34b16bc..58a57c7 100644
--- a/src/net/java/joglutils/msg/elements/CoordinateElement.java
+++ b/src/net/java/joglutils/msg/elements/CoordinateElement.java
@@ -52,13 +52,21 @@ public class CoordinateElement extends Element {
   public Element newInstance() {
     return new CoordinateElement();
   }
+  /** Returns the instance of this element in the passed State. */
   public static CoordinateElement getInstance(State state) {
     return (CoordinateElement) 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) {
     CoordinateElement tmp = new CoordinateElement();
     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;
diff --git a/src/net/java/joglutils/msg/elements/ModelMatrixElement.java b/src/net/java/joglutils/msg/elements/ModelMatrixElement.java
index cfe726e..e4cdbb0 100644
--- a/src/net/java/joglutils/msg/elements/ModelMatrixElement.java
+++ b/src/net/java/joglutils/msg/elements/ModelMatrixElement.java
@@ -50,13 +50,21 @@ public class ModelMatrixElement extends Element {
   public Element newInstance() {
     return new ModelMatrixElement();
   }
+  /** Returns the instance of this element in the passed State. */
   public static ModelMatrixElement getInstance(State state) {
     return (ModelMatrixElement) 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 ModelMatrixElement();
     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;
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;
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;
diff --git a/src/net/java/joglutils/msg/elements/TextureElement.java b/src/net/java/joglutils/msg/elements/TextureElement.java
index 90a9ebc..199a113 100644
--- a/src/net/java/joglutils/msg/elements/TextureElement.java
+++ b/src/net/java/joglutils/msg/elements/TextureElement.java
@@ -57,13 +57,21 @@ public class TextureElement extends Element {
   public Element newInstance() {
     return new TextureElement();
   }
+  /** Returns the instance of this element in the passed State. */
   public static TextureElement getInstance(State state) {
     return (TextureElement) 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) {
     TextureElement tmp = new TextureElement();
     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 Texture object
   protected Texture texture;
diff --git a/src/net/java/joglutils/msg/elements/ViewingMatrixElement.java b/src/net/java/joglutils/msg/elements/ViewingMatrixElement.java
index 5142678..b561bd8 100644
--- a/src/net/java/joglutils/msg/elements/ViewingMatrixElement.java
+++ b/src/net/java/joglutils/msg/elements/ViewingMatrixElement.java
@@ -50,13 +50,21 @@ public class ViewingMatrixElement extends Element {
   public Element newInstance() {
     return new ViewingMatrixElement();
   }
+  /** Returns the instance of this element in the passed State. */
   public static ViewingMatrixElement getInstance(State state) {
     return (ViewingMatrixElement) 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 ViewingMatrixElement();
     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;