X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fdatamodel%2FAlignment.java;h=04977e852fcd85d83afaee169af0423b76b7468f;hb=bb3f28791ddb1a4f55e78a3bcd2ff4a591ebe95d;hp=1a0d82ce20d12b49e7979259f775af10410809a3;hpb=8a6fa9ea9900d0f106529c3f6283e7f9d76dd2cb;p=jalview.git

diff --git a/src/jalview/datamodel/Alignment.java b/src/jalview/datamodel/Alignment.java
index 1a0d82c..04977e8 100755
--- a/src/jalview/datamodel/Alignment.java
+++ b/src/jalview/datamodel/Alignment.java
@@ -1,6 +1,6 @@
 /*
- * Jalview - A Sequence Alignment Editor and Viewer (Version 2.6)
- * Copyright (C) 2010 J Procter, AM Waterhouse, G Barton, M Clamp, S Searle
+ * Jalview - A Sequence Alignment Editor and Viewer (Version 2.7)
+ * Copyright (C) 2011 J Procter, AM Waterhouse, J Engelhardt, LM Lui, G Barton, M Clamp, S Searle
  * 
  * This file is part of Jalview.
  * 
@@ -43,6 +43,8 @@ public class Alignment implements AlignmentI
   public static final int PROTEIN = 0;
 
   public static final int NUCLEOTIDE = 1;
+  
+  public boolean hasRNAStructure = false;
 
   /** DOCUMENT ME!! */
   public AlignmentAnnotation[] annotations;
@@ -143,7 +145,7 @@ public class Alignment implements AlignmentI
    */
   public SequenceI getSequenceAt(int i)
   {
-    if (i < sequences.size())
+    if (i>-1 && i < sequences.size())
     {
       return (SequenceI) sequences.elementAt(i);
     }
@@ -652,6 +654,11 @@ public class Alignment implements AlignmentI
    */
   public boolean deleteAnnotation(AlignmentAnnotation aa)
   {
+    return deleteAnnotation(aa, true);
+  }
+  
+  public boolean deleteAnnotation(AlignmentAnnotation aa, boolean unhook)
+  {
     int aSize = 1;
 
     if (annotations != null)
@@ -683,7 +690,9 @@ public class Alignment implements AlignmentI
     if (swap)
     {
       annotations = temp;
-      unhookAnnotation(aa);
+      if (unhook) {
+        unhookAnnotation(aa);
+      }
     }
     return swap;
   }
@@ -725,6 +734,10 @@ public class Alignment implements AlignmentI
    */
   public void addAnnotation(AlignmentAnnotation aa, int pos)
   {
+    if(aa.getRNAStruc()!= null){
+      hasRNAStructure=true;
+    }
+    
     int aSize = 1;
     if (annotations != null)
     {
@@ -825,6 +838,11 @@ public class Alignment implements AlignmentI
       return false;
     }
   }
+  
+  public boolean hasRNAStructure(){
+    //TODO can it happen that structure is removed from alignment?
+    return hasRNAStructure;
+  }
 
   public void setDataset(Alignment data)
   {