X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fgui%2FAnnotationLabels.java;h=7c5afcde7780bcb89047194f0679e565e1056f44;hb=HEAD;hp=70fef2afbb66a4971eb8f17fe0d1a28cfe916868;hpb=334013f9dc7b599af9062ca053d9d091a474472e;p=jalview.git

diff --git a/src/jalview/gui/AnnotationLabels.java b/src/jalview/gui/AnnotationLabels.java
index 70fef2a..7c5afcd 100755
--- a/src/jalview/gui/AnnotationLabels.java
+++ b/src/jalview/gui/AnnotationLabels.java
@@ -793,9 +793,15 @@ public class AnnotationLabels extends JPanel
     {
       Dimension d = ap.annotationScroller.getPreferredSize();
       int dif = evt.getY() - oldY;
+      dif -= dif % ap.av.getCharHeight();
 
-      dif /= ap.av.getCharHeight();
-      dif *= ap.av.getCharHeight();
+      // don't allow setting an annotation panel height larger than visible
+      // (otherwise you can't get back)
+      if (d.height - dif > ap.idPanelHolder.getHeight()
+              - ap.getIdSpaceFillerPanel1().getHeight())
+      {
+        return;
+      }
 
       if ((d.height - dif) > 20)
       {