From 27e1f5b3c14e4aa7a653b26b6e39acf7d09b7d0e Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Thu, 3 May 2012 16:10:11 -0700
Subject: j3dcore: annotate users list in Screen3D

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
---
 src/classes/share/javax/media/j3d/Screen3D.java | 41 ++++++++++---------------
 1 file changed, 16 insertions(+), 25 deletions(-)

(limited to 'src')

diff --git a/src/classes/share/javax/media/j3d/Screen3D.java b/src/classes/share/javax/media/j3d/Screen3D.java
index 7d02fcf..fe15eb3 100644
--- a/src/classes/share/javax/media/j3d/Screen3D.java
+++ b/src/classes/share/javax/media/j3d/Screen3D.java
@@ -180,8 +180,8 @@ public class Screen3D extends Object {
     // A count of the number of active View associated with this screen
     UnorderList activeViews = new UnorderList(1, View.class);
 
-    // A list of Canvas3D Objects that refer to this
-    ArrayList users = new ArrayList();
+	// A list of Canvas3D Objects that refer to this
+	private final ArrayList<Canvas3D> users = new ArrayList<Canvas3D>();
 
     void addActiveView(View v) {
 	activeViews.addUnique(v);
@@ -195,32 +195,23 @@ public class Screen3D extends Object {
 	return activeViews.isEmpty();
     }
 
-    // Add a user to the list of users
-    synchronized void removeUser(Canvas3D c) {
-	int idx = users.indexOf(c);
-	if (idx >= 0) {
-	    users.remove(idx);
-	}
-    }
-
-    // Add a user to the list of users
-    synchronized void addUser(Canvas3D c) {
-	int idx = users.indexOf(c);
-	if (idx < 0) {
-	    users.add(c);
-	}
-    }
+// Add a user to the list of users
+synchronized void removeUser(Canvas3D c) {
+	users.remove(c);
+}
 
-    // Add a user to the list of users
-    synchronized void notifyUsers() {
-	int i;
-	Canvas3D c;
+// Add a user to the list of users
+synchronized void addUser(Canvas3D c) {
+	if (!users.contains(c))
+		users.add(c);
+}
 
-	for (i=0; i<users.size(); i++) {
-	    c = (Canvas3D)users.get(i);
-	    c.redraw();
+// Add a user to the list of users
+synchronized void notifyUsers() {
+	for (int i = 0; i < users.size(); i++) {
+		users.get(i).redraw();
 	}
-    }
+}
 
     /**
      * Retrieves the width and height (in pixels) of this Screen3D.
-- 
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