NEWT Display: Issue EDTUtil.start() at runOnEDTIfAvail(..) even if on EDT, which is to be stopped.

This case appears on e.g. OSX/CALayer (offscreen) reparenting using recreation (onscreen <-> offscreen),
i.e. display destroy/create is performed on EDT.

Misc Cleanup:

- Rename EDTUtil: restart() -> start()

- Rename Display: validateEDT() -> validateEDTStopped()

- Simplify Display.setEDTUtil(..): Remove need for redundant 'newEDTUtil' local var.

- Simplify Display.runOnEDTIfAvail(..): edtUtil is never null

3 files changed, 7 insertions, 7 deletions

diff --git a/src/newt/classes/com/jogamp/newt/Display.java b/src/newt/classes/com/jogamp/newt/Display.java
index c618405c2..382a5d583 100644
--- a/src/newt/classes/com/jogamp/newt/Display.java
+++ b/src/newt/classes/com/jogamp/newt/Display.java
@@ -78,7 +78,7 @@ public abstract class Display {
      * Stop the running EDT in case this display is destroyed already.<br>
      * @return true if EDT has been stopped (destroyed but running), otherwise false.
      */
-    public abstract boolean validateEDT();
+    public abstract boolean validateEDTStopped();
 
     /**
      * @return true if the native display handle is valid and ready to operate,
diff --git a/src/newt/classes/com/jogamp/newt/swt/NewtCanvasSWT.java b/src/newt/classes/com/jogamp/newt/swt/NewtCanvasSWT.java
index 47dfca0f3..2fa83e0e2 100644
--- a/src/newt/classes/com/jogamp/newt/swt/NewtCanvasSWT.java
+++ b/src/newt/classes/com/jogamp/newt/swt/NewtCanvasSWT.java
@@ -346,7 +346,7 @@ public class NewtCanvasSWT extends Canvas implements WindowClosingProtocol {
             {
                 final Display newtDisplay = newtChild.getScreen().getDisplay();
                 final EDTUtil edtUtil = new SWTEDTUtil(newtDisplay, getDisplay());
-                edtUtil.restart();
+                edtUtil.start();
                 newtDisplay.setEDTUtil( edtUtil );
             }
             
diff --git a/src/newt/classes/com/jogamp/newt/util/EDTUtil.java b/src/newt/classes/com/jogamp/newt/util/EDTUtil.java
index e86df2084..52ca95682 100644
--- a/src/newt/classes/com/jogamp/newt/util/EDTUtil.java
+++ b/src/newt/classes/com/jogamp/newt/util/EDTUtil.java
@@ -65,10 +65,10 @@ public interface EDTUtil {
     public void setPollPeriod(long ms);
     
     /**
-     * Starts or restarts the EDT.
+     * Starts the EDT after it's creation or after {@link #invokeStop(boolean, Runnable) stopping}.
      * <p>
-     * If the EDT is running, it must be stopped first via {@link #invokeStop(boolean, Runnable)}
-     * and the caller should wait until it's stopped via {@link #waitUntilStopped()}.
+     * If the EDT is running, it must be {@link #invokeStop(boolean, Runnable) stopped} first
+     * and the caller should wait {@link #waitUntilStopped() until it's stopped}.
      * </p>
      * 
      * @return true if EDT has been successfully restarted, otherwise false
@@ -77,7 +77,7 @@ public interface EDTUtil {
      * @see #invokeStop(boolean, java.lang.Runnable)
      * @see #waitUntilStopped()
      */
-    public boolean restart() throws IllegalStateException;
+    public boolean start() throws IllegalStateException;
 
     /**
      * Returns true if the current thread is the event dispatch thread (EDT).
@@ -130,7 +130,7 @@ public interface EDTUtil {
      *   <li>All previous queued tasks will be finished.</li>
      *   <li>No new tasks are allowed, an Exception is thrown.</li>
      *   <li>Can be issued from within EDT, ie from within an enqueued task.</li>
-     *   <li>{@link #restart()} may follow immediately, ie creating a new EDT</li>
+     *   <li>{@link #start()} may follow immediately, ie creating a new EDT</li>
      * </ul>
      * </p>
      * @return true if <code>task</code> has been executed or queued for later execution, otherwise false