X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;ds=inline;f=src%2Fjalview%2Fviewmodel%2FAlignmentViewport.java;h=3a92e4b9cb872d5a3fcfdb89c1e7260ff6262b21;hb=894672b99c68bc0562ef5a3a0396a4825c8d7d48;hp=47227d56b5852d6c75db035555ae651ffca6083c;hpb=c73c8c28e34bdcac21e89aa89b69e85dad9e0189;p=jalview.git

diff --git a/src/jalview/viewmodel/AlignmentViewport.java b/src/jalview/viewmodel/AlignmentViewport.java
index 47227d5..3a92e4b 100644
--- a/src/jalview/viewmodel/AlignmentViewport.java
+++ b/src/jalview/viewmodel/AlignmentViewport.java
@@ -44,7 +44,6 @@ import jalview.datamodel.SequenceI;
 import jalview.schemes.Blosum62ColourScheme;
 import jalview.schemes.ColourSchemeI;
 import jalview.schemes.PIDColourScheme;
-import jalview.schemes.ResidueProperties;
 import jalview.structure.CommandListener;
 import jalview.structure.StructureSelectionManager;
 import jalview.structure.VamsasSource;
@@ -58,6 +57,7 @@ import jalview.workers.ConsensusThread;
 import jalview.workers.StrucConsensusThread;
 
 import java.awt.Color;
+import java.beans.PropertyChangeSupport;
 import java.util.ArrayDeque;
 import java.util.ArrayList;
 import java.util.BitSet;
@@ -807,7 +807,8 @@ public abstract class AlignmentViewport implements AlignViewportI,
   public void updateConservation(final AlignmentViewPanel ap)
   {
     // see note in mantis : issue number 8585
-    if (alignment.isNucleotide() || conservation == null
+    if (alignment.isNucleotide()
+            || (conservation == null && quality == null)
             || !autoCalculateConsensus)
     {
       return;
@@ -913,6 +914,35 @@ public abstract class AlignmentViewport implements AlignViewportI,
     return false;
   }
 
+  public void setAlignment(AlignmentI align)
+  {
+    this.alignment = align;
+  }
+
+  /**
+   * Clean up references when this viewport is closed
+   */
+  @Override
+  public void dispose()
+  {
+    /*
+     * defensively null out references to large objects in case
+     * this object is not garbage collected (as if!)
+     */
+    consensus = null;
+    complementConsensus = null;
+    strucConsensus = null;
+    conservation = null;
+    quality = null;
+    groupConsensus = null;
+    groupConservation = null;
+    hconsensus = null;
+    hcomplementConsensus = null;
+    // TODO removed listeners from changeSupport?
+    changeSupport = null;
+    setAlignment(null);
+  }
+
   @Override
   public boolean isClosed()
   {
@@ -1240,10 +1270,9 @@ public abstract class AlignmentViewport implements AlignViewportI,
     return ignoreGapsInConsensusCalculation;
   }
 
-  // / property change stuff
-
+  // property change stuff
   // JBPNote Prolly only need this in the applet version.
-  private final java.beans.PropertyChangeSupport changeSupport = new java.beans.PropertyChangeSupport(
+  private PropertyChangeSupport changeSupport = new PropertyChangeSupport(
           this);
 
   protected boolean showConservation = true;
@@ -1544,7 +1573,7 @@ public abstract class AlignmentViewport implements AlignViewportI,
   public boolean isHiddenRepSequence(SequenceI seq)
   {
     return (hiddenRepSequences != null && hiddenRepSequences
-                    .containsKey(seq));
+            .containsKey(seq));
   }
 
   /**
@@ -1834,9 +1863,9 @@ public abstract class AlignmentViewport implements AlignViewportI,
       cs.setConsensus(hconsensus);
       if (cs.conservationApplied())
       {
-        cs.setConservation(Conservation.calculateConservation("All",
-                ResidueProperties.propHash, 3, alignment.getSequences(), 0,
-                alignment.getWidth(), false, getConsPercGaps(), false));
+        cs.setConservation(Conservation.calculateConservation("All", 3,
+                alignment.getSequences(), 0, alignment.getWidth(), false,
+                getConsPercGaps(), false));
       }
     }
 
@@ -2767,8 +2796,7 @@ public abstract class AlignmentViewport implements AlignViewportI,
   public void expandColSelection(SequenceGroup sg, boolean wholewidth)
   {
     int sgs, sge;
-    if (sg != null
-            && (sgs = sg.getStartRes()) >= 0
+    if (sg != null && (sgs = sg.getStartRes()) >= 0
             && sg.getStartRes() <= (sge = sg.getEndRes())
             && !this.hasSelectedColumns())
     {