From 245ddd4612033edc65de15acb93ac9c22912a828 Mon Sep 17 00:00:00 2001
From: amwaterhouse <Andrew Waterhouse>
Date: Tue, 2 May 2006 12:23:48 +0000
Subject: [PATCH] Make nullFrame only once

---
 src/jalview/appletgui/AlignViewport.java |   12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/jalview/appletgui/AlignViewport.java b/src/jalview/appletgui/AlignViewport.java
index 36b0a31..481a657 100755
--- a/src/jalview/appletgui/AlignViewport.java
+++ b/src/jalview/appletgui/AlignViewport.java
@@ -63,6 +63,7 @@ public class AlignViewport
   int wrappedWidth;
 
   Font font = new Font("SansSerif", Font.PLAIN, 10);
+  boolean validCharWidth = true;
   AlignmentI alignment;
 
   ColumnSelection colSel = new ColumnSelection();
@@ -422,12 +423,17 @@ public class AlignViewport
     return endSeq;
   }
 
+  java.awt.Frame nullFrame;
   public void setFont(Font f)
   {
     font = f;
-    java.awt.Frame temp = new java.awt.Frame();
-    temp.addNotify();
-    java.awt.FontMetrics fm = temp.getGraphics().getFontMetrics(font);
+    if(nullFrame == null)
+    {
+      nullFrame = new java.awt.Frame();
+      nullFrame.addNotify();
+    }
+
+    java.awt.FontMetrics fm = nullFrame.getGraphics().getFontMetrics(font);
     setCharHeight(fm.getHeight());
     setCharWidth(fm.charWidth('M'));
   }
-- 
1.7.10.2