- Issue 106: Add splash screen just under progress bar, and load all cards at startup.

src/main/java/net/slightlymagic/braids/util/UtilFunctions.java

@@ -1,9 +1,12 @@
 package net.slightlymagic.braids.util;
 
+import java.lang.reflect.InvocationTargetException;
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
 
+import javax.swing.SwingUtilities;
+
 /**
  * Some general-purpose functions.
  */
@@ -39,9 +42,36 @@ public final class UtilFunctions {
 		exn.setStackTrace(slice(new StackTraceElement[len], trace, 1));
 		throw exn;
 	}
-	
 
 	/**
+	 * Invoke the given Runnable in an Event Dispatch Thread and wait for it
+	 * to finish; but <B>try to use SwingUtilities.invokeLater instead whenever
+	 * feasible.</B>
+	 *
+	 * Exceptions generated by SwingUtilities.invokeAndWait (if used), are
+	 * rethrown as RuntimeExceptions.
+	 *
+	 * @see javax.swing.SwingUtilities#invokeLater(Runnable)
+	 *
+	 * @param proc  the Runnable to run
+	 */
+    public static void invokeInEventDispatchThreadAndWait(final Runnable proc) {
+        if (SwingUtilities.isEventDispatchThread()) {
+            // Just run in the current thread.
+            proc.run();
+        }
+        else {
+            try {
+                SwingUtilities.invokeAndWait(proc);
+            } catch (InterruptedException exn) {
+                throw new RuntimeException(exn);
+            } catch (InvocationTargetException exn) {
+                throw new RuntimeException(exn);
+            }
+        }
+    }
+
+    /**
 	 * Create an array from the (rest of) an iterator's output; 
 	 * this function is horribly inefficient.
 	 *