X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fgui%2FJvSwingUtils.java;h=b921a81fda1e129facc764c7aff60f6d42178ad8;hb=cb4b4b590add93fb0fb5c5ecd1d0532f1456ecc2;hp=2650eaef6b765338c2a67c1f101e9f1ec964b183;hpb=5e34c2ccda1cf0d409618a564804408350c932d0;p=jalview.git

diff --git a/src/jalview/gui/JvSwingUtils.java b/src/jalview/gui/JvSwingUtils.java
index 2650eae..b921a81 100644
--- a/src/jalview/gui/JvSwingUtils.java
+++ b/src/jalview/gui/JvSwingUtils.java
@@ -26,6 +26,7 @@ import javax.swing.JButton;
 import javax.swing.JComponent;
 import javax.swing.JLabel;
 import javax.swing.JMenu;
+import javax.swing.JMenuItem;
 import javax.swing.JPanel;
 import javax.swing.JTextArea;
 import javax.swing.SwingConstants;
@@ -171,4 +172,23 @@ public final class JvSwingUtils
     return getLabelFont(false,false);
   }
 
+  /**
+   * clean up a swing menu. 
+   * Removes any empty submenus without selection listeners.
+   * @param webService
+   */
+  public static void cleanMenu(JMenu webService)
+  {
+    for (int i=0;i<webService.getItemCount(); )
+    {
+      JMenuItem item = webService.getItem(i);
+      if (item instanceof JMenu && ((JMenu)item).getItemCount()==0)
+      {
+        webService.remove(i);
+      } else {
+        i++;
+      }
+    }
+  }
+
 }