Extracted AnimationWorker from DataPanel

src/com/bytezone/diskbrowser/gui/AnimationWorker.java

@@ -0,0 +1,62 @@
+package com.bytezone.diskbrowser.gui;
+
+import java.util.List;
+
+import javax.swing.SwingWorker;
+
+import com.bytezone.diskbrowser.applefile.SHRPictureFile2;
+
+// -----------------------------------------------------------------------------------//
+public class AnimationWorker extends SwingWorker<Void, Integer>
+// -----------------------------------------------------------------------------------//
+{
+  volatile boolean running;
+  SHRPictureFile2 image;
+  DataPanel owner;
+
+  // ---------------------------------------------------------------------------------//
+  public AnimationWorker (DataPanel owner, SHRPictureFile2 image)
+  // ---------------------------------------------------------------------------------//
+  {
+    assert image.isAnimation ();
+    this.image = image;
+    this.owner = owner;
+  }
+
+  // ---------------------------------------------------------------------------------//
+  public void cancel ()
+  // ---------------------------------------------------------------------------------//
+  {
+    running = false;
+  }
+
+  // ---------------------------------------------------------------------------------//
+  @Override
+  protected Void doInBackground () throws Exception
+  // ---------------------------------------------------------------------------------//
+  {
+    running = true;
+    try
+    {
+      while (running)
+      {
+        Thread.sleep (image.getDelay ());
+        publish (0);
+      }
+    }
+    catch (InterruptedException e)
+    {
+      e.printStackTrace ();
+    }
+    return null;
+  }
+
+  // ---------------------------------------------------------------------------------//
+  @Override
+  protected void process (List<Integer> chunks)
+  // ---------------------------------------------------------------------------------//
+  {
+    image.nextFrame ();
+    owner.update ();
+  }
+}

src/com/bytezone/diskbrowser/gui/DataPanel.java

@@ -16,7 +16,6 @@ import javax.swing.JTabbedPane;
 import javax.swing.JTextArea;
 import javax.swing.ScrollPaneConstants;
 import javax.swing.SwingConstants;
-import javax.swing.SwingWorker;
 import javax.swing.event.ChangeEvent;
 import javax.swing.event.ChangeListener;
 
@@ -62,7 +61,7 @@ public class DataPanel extends JTabbedPane
   boolean assemblerTextValid;
   DataSource currentDataSource;
 
-  private Worker animation;
+  private AnimationWorker animation;
 
   final MenuHandler menuHandler;
 
@@ -381,7 +380,7 @@ public class DataPanel extends JTabbedPane
         {
           if (animation != null)
             animation.cancel ();
-          animation = new Worker ((SHRPictureFile2) dataSource);
+          animation = new AnimationWorker (this, (SHRPictureFile2) dataSource);
           animation.execute ();
         }
       }
@@ -515,49 +514,4 @@ public class DataPanel extends JTabbedPane
     if (currentDataSource instanceof BasicTextFile)
       setDataSource (currentDataSource);
   }
-
-  // ---------------------------------------------------------------------------------//
-  class Worker extends SwingWorker<Void, Integer>
-  // ---------------------------------------------------------------------------------//
-  {
-    volatile boolean running;
-    SHRPictureFile2 image;
-
-    public Worker (SHRPictureFile2 image)
-    {
-      assert image.isAnimation ();
-      this.image = image;
-    }
-
-    public void cancel ()
-    {
-      running = false;
-    }
-
-    @Override
-    protected Void doInBackground () throws Exception
-    {
-      running = true;
-      try
-      {
-        while (running)
-        {
-          Thread.sleep (image.getDelay ());
-          publish (0);
-        }
-      }
-      catch (InterruptedException e)
-      {
-        e.printStackTrace ();
-      }
-      return null;
-    }
-
-    @Override
-    protected void process (List<Integer> chunks)
-    {
-      image.nextFrame ();
-      update ();
-    }
-  }
 }