JAL-1690 refining 'copy format from' as applied to splitframe panels

[jalview.git] / src / jalview / appletgui / AlignmentPanel.java

diff --git a/src/jalview/appletgui/AlignmentPanel.java b/src/jalview/appletgui/AlignmentPanel.java
index 5a2c5ef..0516533 100644 (file)
--- a/src/jalview/appletgui/AlignmentPanel.java
+++ b/src/jalview/appletgui/AlignmentPanel.java
@@ -983,7 +983,11 @@ public class AlignmentPanel extends Panel implements AdjustmentListener,
   {
     invalidate();
     Dimension d = idPanel.idCanvas.getSize();
-    idPanel.idCanvas.setSize(d.width, seqPanel.seqCanvas.getSize().height);
+    final int canvasHeight = seqPanel.seqCanvas.getSize().height;
+    if (canvasHeight != d.height)
+    {
+      idPanel.idCanvas.setSize(d.width, canvasHeight);
+    }
 
     if (av.getWrapAlignment())
     {