X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fgui%2FSeqCanvas.java;h=4114385139d7d3855306fb32672575788f6976d9;hb=1c251a57c7b2fb70dabceb480d0170363357558f;hp=6f3ff5882a27c759d09b0ca9244761e9f85e39bd;hpb=462133eea46ebec6411f53dbe3d6bc372cca4f46;p=jalview.git

diff --git a/src/jalview/gui/SeqCanvas.java b/src/jalview/gui/SeqCanvas.java
index 6f3ff58..4114385 100755
--- a/src/jalview/gui/SeqCanvas.java
+++ b/src/jalview/gui/SeqCanvas.java
@@ -40,6 +40,7 @@ import java.awt.RenderingHints;
 import java.awt.Shape;
 import java.awt.image.BufferedImage;
 import java.beans.PropertyChangeEvent;
+import java.util.List;
 
 import javax.swing.JComponent;
 
@@ -562,9 +563,10 @@ public class SeqCanvas extends JComponent implements ViewportListenerI
         g.setColor(Color.blue);
         int res;
         HiddenColumns hidden = av.getAlignment().getHiddenColumns();
-        for (int i = 0; i < hidden.getHiddenRegions().size(); i++)
+        List<Integer> positions = hidden.findHiddenRegionPositions();
+        for (int pos : positions)
         {
-          res = hidden.findHiddenRegionPosition(i) - startRes;
+          res = pos - startRes;
 
           if (res < 0 || res > endx - startRes)
           {