JAL-2820 limit length of residue tooltip

diff --git a/src/jalview/gui/SeqPanel.java b/src/jalview/gui/SeqPanel.java
index b718783..29f68c1 100644 (file)
--- a/src/jalview/gui/SeqPanel.java
+++ b/src/jalview/gui/SeqPanel.java
@@ -75,12 +75,11 @@ import javax.swing.ToolTipManager;
 public class SeqPanel extends JPanel
         implements MouseListener, MouseMotionListener, MouseWheelListener,
         SequenceListener, SelectionListener
-
 {
-  /** DOCUMENT ME!! */
+  private static final int MAX_TOOLTIP_LENGTH = 300;
+
   public SeqCanvas seqCanvas;
 
-  /** DOCUMENT ME!! */
   public AlignmentPanel ap;
 
   /*
@@ -811,6 +810,11 @@ public class SeqPanel extends JPanel
     }
     else
     {
+      if (tooltipText.length() > MAX_TOOLTIP_LENGTH) // constant
+      {
+        tooltipText.setLength(MAX_TOOLTIP_LENGTH);
+        tooltipText.append("...");
+      }
       String textString = tooltipText.toString();
       if (lastTooltip == null || !lastTooltip.equals(textString))
       {