JAL-3858 fix off-by-one in matrix visualisation and interactive tooltip

[jalview.git] / src / jalview / gui / AnnotationPanel.java

diff --git a/src/jalview/gui/AnnotationPanel.java b/src/jalview/gui/AnnotationPanel.java
index cf37e9e..8321741 100755 (executable)
--- a/src/jalview/gui/AnnotationPanel.java
+++ b/src/jalview/gui/AnnotationPanel.java
@@ -737,7 +737,7 @@ public class AnnotationPanel extends JPanel implements AwtRenderPanelI,
         if (evt.isControlDown()
                 && PAEContactMatrix.PAEMATRIX.equals(clicked.getCalcId()))
         {
-          int c = fr - 1;
+          int c = fr;
           ContactRange cr = forCurrentX.getRangeFor(fr, to);
           double cval;
           // TODO: could use GraphLine instead of arbitrary picking
@@ -747,7 +747,7 @@ public class AnnotationPanel extends JPanel implements AwtRenderPanelI,
           // controls feathering - what other elements in row/column
           // should we select
           double thresh = cr.getMean() + (cr.getMax() - cr.getMean()) * .15;
-          while (c > 0)
+          while (c >= 0)
           {
             cval = forCurrentX.getContactAt(c);
             if (// cr.getMin() <= cval &&
@@ -1301,6 +1301,10 @@ public class AnnotationPanel extends JPanel implements AwtRenderPanelI,
     // TODO abstract tooltip generator so different implementations can be built
     if (ann.graph == AlignmentAnnotation.CONTACT_MAP)
     {
+      if (rowAndOffset>=ann.graphHeight)
+      {
+        return null;
+      }
       ContactListI clist = av.getContactList(ann, column);
       if (clist != null)
       {