JAL-2738 copy to spikes/mungo

[jalview.git] / src / jalview / datamodel / SequenceGroup.java

diff --git a/src/jalview/datamodel/SequenceGroup.java b/src/jalview/datamodel/SequenceGroup.java
index 46c802f..e2f15e1 100755 (executable)
--- a/src/jalview/datamodel/SequenceGroup.java
+++ b/src/jalview/datamodel/SequenceGroup.java
@@ -27,6 +27,8 @@ import jalview.renderer.ResidueShaderI;
 import jalview.schemes.ColourSchemeI;
 
 import java.awt.Color;
+import java.beans.PropertyChangeListener;
+import java.beans.PropertyChangeSupport;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
@@ -39,6 +41,26 @@ import java.util.Map;
  */
 public class SequenceGroup implements AnnotatedCollectionI
 {
+  // TODO ideally this event notification functionality should be separated into
+  // a
+  // subclass of ViewportProperties similarly to ViewportRanges. Done here as
+  // quick fix for JAL-2665
+  public static final String SEQ_GROUP_CHANGED = "Sequence group changed";
+
+  protected PropertyChangeSupport changeSupport = new PropertyChangeSupport(
+          this);
+
+  public void addPropertyChangeListener(PropertyChangeListener listener)
+  {
+    changeSupport.addPropertyChangeListener(listener);
+  }
+
+  public void removePropertyChangeListener(PropertyChangeListener listener)
+  {
+    changeSupport.removePropertyChangeListener(listener);
+  }
+  // end of event notification functionality initialisation
+
   String groupName;
 
   String description;
@@ -496,6 +518,8 @@ public class SequenceGroup implements AnnotatedCollectionI
       if (s != null && !sequences.contains(s))
       {
         sequences.add(s);
+        changeSupport.firePropertyChange(SEQ_GROUP_CHANGED,
+                sequences.size() - 1, sequences.size());
       }
 
       if (recalc)
@@ -620,8 +644,10 @@ public class SequenceGroup implements AnnotatedCollectionI
     conservation.description = "Conservation for group " + getName()
             + " less than " + consPercGaps + "% gaps";
     // preserve width if already set
-    int aWidth = (conservation.annotations != null) ? (endRes < conservation.annotations.length ? conservation.annotations.length
-            : endRes + 1)
+    int aWidth = (conservation.annotations != null)
+            ? (endRes < conservation.annotations.length
+                    ? conservation.annotations.length
+                    : endRes + 1)
             : endRes + 1;
     conservation.annotations = null;
     conservation.annotations = new Annotation[aWidth]; // should be alignment
@@ -641,8 +667,10 @@ public class SequenceGroup implements AnnotatedCollectionI
     consensus.description = "Percent Identity";
     consensusData = cnsns;
     // preserve width if already set
-    int aWidth = (consensus.annotations != null) ? (endRes < consensus.annotations.length ? consensus.annotations.length
-            : endRes + 1)
+    int aWidth = (consensus.annotations != null)
+            ? (endRes < consensus.annotations.length
+                    ? consensus.annotations.length
+                    : endRes + 1)
             : endRes + 1;
     consensus.annotations = null;
     consensus.annotations = new Annotation[aWidth]; // should be alignment width
@@ -689,6 +717,8 @@ public class SequenceGroup implements AnnotatedCollectionI
     synchronized (sequences)
     {
       sequences.remove(s);
+      changeSupport.firePropertyChange(SEQ_GROUP_CHANGED,
+              sequences.size() + 1, sequences.size());
 
       if (recalc)
       {
@@ -725,7 +755,9 @@ public class SequenceGroup implements AnnotatedCollectionI
    */
   public void setStartRes(int i)
   {
+    int before = startRes;
     startRes = i;
+    changeSupport.firePropertyChange(SEQ_GROUP_CHANGED, before, startRes);
   }
 
   /**
@@ -735,7 +767,9 @@ public class SequenceGroup implements AnnotatedCollectionI
    */
   public void setEndRes(int i)
   {
+    int before = endRes;
     endRes = i;
+    changeSupport.firePropertyChange(SEQ_GROUP_CHANGED, before, endRes);
   }
 
   /**
@@ -1304,11 +1338,12 @@ public class SequenceGroup implements AnnotatedCollectionI
     ArrayList<AlignmentAnnotation> aa = new ArrayList<>();
     for (AlignmentAnnotation ann : getAlignmentAnnotation())
     {
-      if ((calcId == null || (ann.getCalcId() != null && ann.getCalcId()
-              .equals(calcId)))
-              && (seq == null || (ann.sequenceRef != null && ann.sequenceRef == seq))
-              && (label == null || (ann.label != null && ann.label
-                      .equals(label))))
+      if ((calcId == null || (ann.getCalcId() != null
+              && ann.getCalcId().equals(calcId)))
+              && (seq == null || (ann.sequenceRef != null
+                      && ann.sequenceRef == seq))
+              && (label == null
+                      || (ann.label != null && ann.label.equals(label))))
       {
         aa.add(ann);
       }
@@ -1344,7 +1379,10 @@ public class SequenceGroup implements AnnotatedCollectionI
   {
     synchronized (sequences)
     {
+      int before = sequences.size();
       sequences.clear();
+      changeSupport.firePropertyChange(SEQ_GROUP_CHANGED, before,
+              sequences.size());
     }
   }
 
@@ -1432,7 +1470,8 @@ public class SequenceGroup implements AnnotatedCollectionI
   @Override
   public boolean isNucleotide()
   {
-    if (context != null) {
+    if (context != null)
+    {
       return context.isNucleotide();
     }
     return false;