JAL-1620 version bump and release notes
[jalview.git] / src / jalview / datamodel / AlignmentAnnotation.java
index 470497e..9550e83 100755 (executable)
 /*
-* Jalview - A Sequence Alignment Editor and Viewer
-* Copyright (C) 2006 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
-*
-* This program is free software; you can redistribute it and/or
-* modify it under the terms of the GNU General Public License
-* as published by the Free Software Foundation; either version 2
-* of the License, or (at your option) any later version.
-*
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-* GNU General Public License for more details.
-*
-* You should have received a copy of the GNU General Public License
-* along with this program; if not, write to the Free Software
-* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
-*/
+ * Jalview - A Sequence Alignment Editor and Viewer (Version 2.8.2b1)
+ * Copyright (C) 2014 The Jalview Authors
+ * 
+ * This file is part of Jalview.
+ * 
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License 
+ * as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *  
+ * Jalview is distributed in the hope that it will be useful, but 
+ * WITHOUT ANY WARRANTY; without even the implied warranty 
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+ * PURPOSE.  See the GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
+ */
 package jalview.datamodel;
 
+import jalview.analysis.Rna;
+import jalview.analysis.SecStrConsensus.SimpleBP;
+import jalview.analysis.WUSSParseException;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.Hashtable;
+import java.util.Map;
+import java.util.Map.Entry;
 
 /**
  * DOCUMENT ME!
- *
+ * 
  * @author $author$
  * @version $Revision$
  */
 public class AlignmentAnnotation
 {
-    public SequenceI sequenceRef;
+  /**
+   * If true, this annotations is calculated every edit, eg consensus, quality
+   * or conservation graphs
+   */
+  public boolean autoCalculated = false;
+
+  /**
+   * unique ID for this annotation, used to match up the same annotation row
+   * shown in multiple views and alignments
+   */
+  public String annotationId;
 
-    /** DOCUMENT ME!! */
-    public String label;
+  /**
+   * the sequence this annotation is associated with (or null)
+   */
+  public SequenceI sequenceRef;
 
-    /** DOCUMENT ME!! */
-    public String description;
+  /** label shown in dropdown menus and in the annotation label area */
+  public String label;
 
-    /** DOCUMENT ME!! */
-    public Annotation[] annotations;
+  /** longer description text shown as a tooltip */
+  public String description;
 
-    public java.util.Hashtable sequenceMapping;
+  /** Array of annotations placed in the current coordinate system */
+  public Annotation[] annotations;
 
-    /** DOCUMENT ME!! */
-    public float graphMin;
+  public ArrayList<SimpleBP> bps = null;
 
-    /** DOCUMENT ME!! */
-    public float graphMax;
+  /**
+   * RNA secondary structure contact positions
+   */
+  public SequenceFeature[] _rnasecstr = null;
+
+  /**
+   * position of annotation resulting in invalid WUSS parsing or -1. -2 means
+   * there was no RNA structure in this annotation
+   */
+  private long invalidrnastruc = -2;
+
+  /**
+   * Updates the _rnasecstr field Determines the positions that base pair and
+   * the positions of helices based on secondary structure from a Stockholm file
+   * 
+   * @param RNAannot
+   */
+  private void _updateRnaSecStr(CharSequence RNAannot)
+  {
+    try
+    {
+      _rnasecstr = Rna.GetBasePairs(RNAannot);
+      bps = Rna.GetModeleBP(RNAannot);
+      invalidrnastruc = -1;
+    } catch (WUSSParseException px)
+    {
+      // DEBUG System.out.println(px);
+      invalidrnastruc = px.getProblemPos();
+    }
+    if (invalidrnastruc > -1)
+    {
+      return;
+    }
+    Rna.HelixMap(_rnasecstr);
+    // setRNAStruc(RNAannot);
 
-    public GraphLine threshold;
+    if (_rnasecstr != null && _rnasecstr.length > 0)
+    {
+      // show all the RNA secondary structure annotation symbols.
+      isrna = true;
+      showAllColLabels = true;
+      scaleColLabel = true;
+      _markRnaHelices();
+    }
+    // System.out.println("featuregroup " + _rnasecstr[0].getFeatureGroup());
 
-    // Graphical hints and tips
+  }
 
-    /** DOCUMENT ME!! */
-    public boolean editable = false;
+  private void _markRnaHelices()
+  {
+    int mxval = 0;
+    // Figure out number of helices
+    // Length of rnasecstr is the number of pairs of positions that base pair
+    // with each other in the secondary structure
+    for (int x = 0; x < _rnasecstr.length; x++)
+    {
+
+      /*
+       * System.out.println(this.annotation._rnasecstr[x] + " Begin" +
+       * this.annotation._rnasecstr[x].getBegin());
+       */
+      // System.out.println(this.annotation._rnasecstr[x].getFeatureGroup());
+      int val = 0;
+      try
+      {
+        val = Integer.valueOf(_rnasecstr[x].getFeatureGroup());
+        if (mxval < val)
+        {
+          mxval = val;
+        }
+      } catch (NumberFormatException q)
+      {
+      }
+      ;
+
+      annotations[_rnasecstr[x].getBegin()].value = val;
+      annotations[_rnasecstr[x].getEnd()].value = val;
+
+      // annotations[_rnasecstr[x].getBegin()].displayCharacter = "" + val;
+      // annotations[_rnasecstr[x].getEnd()].displayCharacter = "" + val;
+    }
+    setScore(mxval);
+  }
+  /**
+   * map of positions in the associated annotation
+   */
+  public java.util.Hashtable<Integer, Annotation> sequenceMapping;
 
-    /** DOCUMENT ME!! */
-    public boolean hasIcons; //
+  /** DOCUMENT ME!! */
+  public float graphMin;
 
-    /** DOCUMENT ME!! */
-    public boolean hasText;
+  /** DOCUMENT ME!! */
+  public float graphMax;
 
-    /** DOCUMENT ME!! */
-    public boolean visible = true;
+  /**
+   * Score associated with label and description.
+   */
+  public double score = Double.NaN;
 
-    public int graphGroup = -1;
+  /**
+   * flag indicating if annotation has a score.
+   */
+  public boolean hasScore = false;
 
-    /** DOCUMENT ME!! */
-    public int height = 0;
+  public GraphLine threshold;
 
-    public int graph = 0;
+  // Graphical hints and tips
 
-    public int graphHeight = 40;
+  /** Can this row be edited by the user ? */
+  public boolean editable = false;
 
-    public static final int NO_GRAPH = 0;
+  /** Indicates if annotation has a graphical symbol track */
+  public boolean hasIcons; //
 
-    public static final int BAR_GRAPH = 1;
+  /** Indicates if annotation has a text character label */
+  public boolean hasText;
 
-    public static final int LINE_GRAPH = 2;
+  /** is the row visible */
+  public boolean visible = true;
 
-    public static int getGraphValueFromString(String string)
+  public int graphGroup = -1;
+
+  /** Displayed height of row in pixels */
+  public int height = 0;
+
+  public int graph = 0;
+
+  public int graphHeight = 40;
+
+  public boolean padGaps = false;
+
+  public static final int NO_GRAPH = 0;
+
+  public static final int BAR_GRAPH = 1;
+
+  public static final int LINE_GRAPH = 2;
+
+  public boolean belowAlignment = true;
+
+  public SequenceGroup groupRef = null;
+
+  /**
+   * display every column label, even if there is a row of identical labels
+   */
+  public boolean showAllColLabels = false;
+
+  /**
+   * scale the column label to fit within the alignment column.
+   */
+  public boolean scaleColLabel = false;
+
+  /**
+   * centre the column labels relative to the alignment column
+   */
+  public boolean centreColLabels = false;
+
+  private boolean isrna;
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see java.lang.Object#finalize()
+   */
+  protected void finalize() throws Throwable
+  {
+    sequenceRef = null;
+    groupRef = null;
+    super.finalize();
+  }
+
+  public static int getGraphValueFromString(String string)
+  {
+    if (string.equalsIgnoreCase("BAR_GRAPH"))
+    {
+      return BAR_GRAPH;
+    }
+    else if (string.equalsIgnoreCase("LINE_GRAPH"))
     {
-      if(string.equalsIgnoreCase("BAR_GRAPH"))
-        return BAR_GRAPH;
-      else if(string.equalsIgnoreCase("LINE_GRAPH"))
-        return LINE_GRAPH;
+      return LINE_GRAPH;
+    }
+    else
+    {
+      return NO_GRAPH;
+    }
+  }
+
+  // JBPNote: what does this do ?
+  public void ConcenStru(CharSequence RNAannot) throws WUSSParseException
+  {
+    bps = Rna.GetModeleBP(RNAannot);
+  }
+
+  /**
+   * Creates a new AlignmentAnnotation object.
+   * 
+   * @param label
+   *          short label shown under sequence labels
+   * @param description
+   *          text displayed on mouseover
+   * @param annotations
+   *          set of positional annotation elements
+   */
+  public AlignmentAnnotation(String label, String description,
+          Annotation[] annotations)
+  {
+    // always editable?
+    editable = true;
+    this.label = label;
+    this.description = description;
+    this.annotations = annotations;
+
+    validateRangeAndDisplay();
+  }
+
+  /**
+   * Checks if annotation labels represent secondary structures
+   * 
+   */
+  void areLabelsSecondaryStructure()
+  {
+    boolean nonSSLabel = false;
+    isrna = false;
+    StringBuffer rnastring = new StringBuffer();
+
+    char firstChar = 0;
+    for (int i = 0; i < annotations.length; i++)
+    {
+      if (annotations[i] == null)
+      {
+        continue;
+      }
+      if (annotations[i].secondaryStructure == 'H'
+              || annotations[i].secondaryStructure == 'E')
+      {
+        hasIcons |= true;
+      }
       else
-        return NO_GRAPH;
-    }
-
-    /**
-     * Creates a new AlignmentAnnotation object.
-     *
-     * @param label DOCUMENT ME!
-     * @param description DOCUMENT ME!
-     * @param annotations DOCUMENT ME!
-     */
-    public AlignmentAnnotation(String label, String description,
-        Annotation[] annotations)
-    {
-        // always editable?
-        editable = true;
-        this.label = label;
-        this.description = description;
-        this.annotations = annotations;
-
-        for (int i = 0; i < annotations.length; i++)
+      // Check for RNA secondary structure
+      {
+        // System.out.println(annotations[i].secondaryStructure);
+        // TODO: 2.8.2 should this ss symbol validation check be a function in
+        // RNA/ResidueProperties ?
+        if (annotations[i].secondaryStructure == '('
+                || annotations[i].secondaryStructure == '['
+                || annotations[i].secondaryStructure == '<'
+                || annotations[i].secondaryStructure == '{'
+                || annotations[i].secondaryStructure == 'A'
+                || annotations[i].secondaryStructure == 'B'
+                || annotations[i].secondaryStructure == 'C'
+                || annotations[i].secondaryStructure == 'D'
+                || annotations[i].secondaryStructure == 'E'
+                || annotations[i].secondaryStructure == 'F'
+                || annotations[i].secondaryStructure == 'G'
+                || annotations[i].secondaryStructure == 'H'
+                || annotations[i].secondaryStructure == 'I'
+                || annotations[i].secondaryStructure == 'J'
+                || annotations[i].secondaryStructure == 'K'
+                || annotations[i].secondaryStructure == 'L'
+                || annotations[i].secondaryStructure == 'M'
+                || annotations[i].secondaryStructure == 'N'
+                || annotations[i].secondaryStructure == 'O'
+                || annotations[i].secondaryStructure == 'P'
+                || annotations[i].secondaryStructure == 'Q'
+                || annotations[i].secondaryStructure == 'R'
+                || annotations[i].secondaryStructure == 'S'
+                || annotations[i].secondaryStructure == 'T'
+                || annotations[i].secondaryStructure == 'U'
+                || annotations[i].secondaryStructure == 'V'
+                || annotations[i].secondaryStructure == 'W'
+                || annotations[i].secondaryStructure == 'X'
+                || annotations[i].secondaryStructure == 'Y'
+                || annotations[i].secondaryStructure == 'Z')
         {
-            if ((annotations[i] != null) &&
-                    ((annotations[i].secondaryStructure == 'H') ||
-                    (annotations[i].secondaryStructure == 'E')))
-            {
-                hasIcons = true;
-            }
+          hasIcons |= true;
+          isrna |= true;
+        }
+      }
 
-            if ((annotations[i] != null) &&
-                    (annotations[i].displayCharacter.length() > 0))
-            {
-                hasText = true;
-            }
+      // System.out.println("displaychar " + annotations[i].displayCharacter);
+
+      if (annotations[i].displayCharacter == null
+              || annotations[i].displayCharacter.length() == 0)
+      {
+        rnastring.append('.');
+        continue;
+      }
+      if (annotations[i].displayCharacter.length() == 1)
+      {
+        firstChar = annotations[i].displayCharacter.charAt(0);
+        // check to see if it looks like a sequence or is secondary structure
+        // labelling.
+        if (annotations[i].secondaryStructure != ' '
+                && !hasIcons
+                &&
+                // Uncomment to only catch case where
+                // displayCharacter==secondary
+                // Structure
+                // to correctly redisplay SS annotation imported from Stockholm,
+                // exported to JalviewXML and read back in again.
+                // &&
+                // annotations[i].displayCharacter.charAt(0)==annotations[i].secondaryStructure
+                firstChar != ' '
+                && firstChar != '$'
+                && firstChar != 0xCE
+                && firstChar != '('
+                && firstChar != '['
+                && firstChar != '>'
+                && firstChar != '{'
+                && firstChar != 'A'
+                && firstChar != 'B'
+                && firstChar != 'C'
+                && firstChar != 'D'
+                && firstChar != 'E'
+                && firstChar != 'F'
+                && firstChar != 'G'
+                && firstChar != 'H'
+                && firstChar != 'I'
+                && firstChar != 'J'
+                && firstChar != 'K'
+                && firstChar != 'L'
+                && firstChar != 'M'
+                && firstChar != 'N'
+                && firstChar != 'O'
+                && firstChar != 'P'
+                && firstChar != 'Q'
+                && firstChar != 'R'
+                && firstChar != 'S'
+                && firstChar != 'T'
+                && firstChar != 'U'
+                && firstChar != 'V'
+                && firstChar != 'W'
+                && firstChar != 'X'
+                && firstChar != 'Y'
+                && firstChar != 'Z'
+                && firstChar != '-'
+                && firstChar < jalview.schemes.ResidueProperties.aaIndex.length)
+        {
+          if (jalview.schemes.ResidueProperties.aaIndex[firstChar] < 23) // TODO:
+                                                                         // parameterise
+                                                                         // to
+                                                                         // gap
+                                                                         // symbol
+                                                                         // number
+          {
+            nonSSLabel = true;
+          }
         }
+      }
+      else
+      {
+        rnastring.append(annotations[i].displayCharacter.charAt(1));
+      }
+
+      if (annotations[i].displayCharacter.length() > 0)
+      {
+        hasText = true;
+      }
     }
 
-    /**
-     * Creates a new AlignmentAnnotation object.
-     *
-     * @param label DOCUMENT ME!
-     * @param description DOCUMENT ME!
-     * @param annotations DOCUMENT ME!
-     * @param min DOCUMENT ME!
-     * @param max DOCUMENT ME!
-     * @param winLength DOCUMENT ME!
-     */
-    public AlignmentAnnotation(String label, String description,
-        Annotation[] annotations, float min, float max, int graphType)
-    {
-        // graphs are not editable
-        this.label = label;
-        this.description = description;
-        this.annotations = annotations;
-        graph = graphType;
-
-        boolean drawValues = true;
-
-        if (min == max)
+    if (nonSSLabel)
+    {
+      hasIcons = false;
+      for (int j = 0; j < annotations.length; j++)
+      {
+        if (annotations[j] != null
+                && annotations[j].secondaryStructure != ' ')
         {
-            min = 999999999;
-            for (int i = 0; i < annotations.length; i++)
-            {
-                if (annotations[i] == null)
-                {
-                    continue;
-                }
-
-                if(drawValues && annotations[i].displayCharacter.length() > 1 )
-                {
-                  drawValues = false;
-                }
-
-                if (annotations[i].value > max)
-                {
-                    max = annotations[i].value;
-                }
-
-                if (annotations[i].value < min)
-                {
-                    min = annotations[i].value;
-                }
-            }
+          annotations[j].displayCharacter = String
+                  .valueOf(annotations[j].secondaryStructure);
+          annotations[j].secondaryStructure = ' ';
+        }
+
+      }
+    }
+    else
+    {
+      if (isrna)
+      {
+        _updateRnaSecStr(new AnnotCharSequence());
+      }
+    }
+
+    annotationId = this.hashCode() + "";
+  }
+
+  /**
+   * flyweight access to positions in the alignment annotation row for RNA
+   * processing
+   * 
+   * @author jimp
+   * 
+   */
+  private class AnnotCharSequence implements CharSequence
+  {
+    int offset = 0;
+
+    int max = 0;
+
+    public AnnotCharSequence()
+    {
+      this(0, annotations.length);
+    }
+
+    public AnnotCharSequence(int start, int end)
+    {
+      offset = start;
+      max = end;
+    }
+
+    @Override
+    public CharSequence subSequence(int start, int end)
+    {
+      return new AnnotCharSequence(offset + start, offset + end);
+    }
+
+    @Override
+    public int length()
+    {
+      return max - offset;
+    }
+
+    @Override
+    public char charAt(int index)
+    {
+      return ((index + offset < 0) || (index + offset) >= max
+              || annotations[index + offset] == null || (annotations[index
+ + offset].secondaryStructure < ' ') ? ' '
+              : annotations[index + offset].secondaryStructure);
+    }
+
+    public String toString()
+    {
+      char[] string = new char[max - offset];
+      int mx = annotations.length;
+
+      for (int i = offset; i < mx; i++)
+      {
+        string[i] = (annotations[i] == null || (annotations[i].secondaryStructure < 32)) ? ' '
+                : annotations[i].secondaryStructure;
+      }
+      return new String(string);
+    }
+  };
+
+  private long _lastrnaannot = -1;
+
+  public String getRNAStruc()
+  {
+    if (isrna)
+    {
+      String rnastruc = new AnnotCharSequence().toString();
+      if (_lastrnaannot != rnastruc.hashCode())
+      {
+        // ensure rna structure contacts are up to date
+        _lastrnaannot = rnastruc.hashCode();
+        _updateRnaSecStr(rnastruc);
+      }
+      return rnastruc;
+    }
+    return null;
+  }
+
+  /**
+   * Creates a new AlignmentAnnotation object.
+   * 
+   * @param label
+   *          DOCUMENT ME!
+   * @param description
+   *          DOCUMENT ME!
+   * @param annotations
+   *          DOCUMENT ME!
+   * @param min
+   *          DOCUMENT ME!
+   * @param max
+   *          DOCUMENT ME!
+   * @param winLength
+   *          DOCUMENT ME!
+   */
+  public AlignmentAnnotation(String label, String description,
+          Annotation[] annotations, float min, float max, int graphType)
+  {
+    // graphs are not editable
+    editable = graphType == 0;
+
+    this.label = label;
+    this.description = description;
+    this.annotations = annotations;
+    graph = graphType;
+    graphMin = min;
+    graphMax = max;
+    validateRangeAndDisplay();
+  }
+
+  /**
+   * checks graphMin and graphMax, secondary structure symbols, sets graphType
+   * appropriately, sets null labels to the empty string if appropriate.
+   */
+  public void validateRangeAndDisplay()
+  {
+
+    if (annotations == null)
+    {
+      visible = false; // try to prevent renderer from displaying.
+      return; // this is a non-annotation row annotation - ie a sequence score.
+    }
+
+    int graphType = graph;
+    float min = graphMin;
+    float max = graphMax;
+    boolean drawValues = true;
+    _linecolour = null;
+    if (min == max)
+    {
+      min = 999999999;
+      for (int i = 0; i < annotations.length; i++)
+      {
+        if (annotations[i] == null)
+        {
+          continue;
         }
 
-        graphMin = min;
-        graphMax = max;
+        if (drawValues && annotations[i].displayCharacter != null
+                && annotations[i].displayCharacter.length() > 1)
+        {
+          drawValues = false;
+        }
 
-        for (int i = 0; i < annotations.length; i++)
+        if (annotations[i].value > max)
         {
-            if (!hasIcons
-                && annotations[i] != null
-                && ((annotations[i].secondaryStructure == 'H') ||
-                    (annotations[i].secondaryStructure == 'E')))
-            {
-                hasIcons = true;
-            }
+          max = annotations[i].value;
+        }
 
-            if (!hasText
-                && annotations[i]!=null
-                && annotations[i].displayCharacter.length() > 0)
+        if (annotations[i].value < min)
+        {
+          min = annotations[i].value;
+        }
+        if (_linecolour == null && annotations[i].colour != null)
+        {
+          _linecolour = annotations[i].colour;
+        }
+      }
+      // ensure zero is origin for min/max ranges on only one side of zero
+      if (min > 0)
+      {
+        min = 0;
+      }
+      else
+      {
+        if (max < 0)
+        {
+          max = 0;
+        }
+      }
+    }
+
+    graphMin = min;
+    graphMax = max;
+
+    areLabelsSecondaryStructure();
+
+    if (!drawValues && graphType != NO_GRAPH)
+    {
+      for (int i = 0; i < annotations.length; i++)
+      {
+        if (annotations[i] != null)
+        {
+          annotations[i].displayCharacter = "X";
+        }
+      }
+    }
+  }
+
+  /**
+   * Copy constructor creates a new independent annotation row with the same
+   * associated sequenceRef
+   * 
+   * @param annotation
+   */
+  public AlignmentAnnotation(AlignmentAnnotation annotation)
+  {
+    this.label = new String(annotation.label);
+    if (annotation.description != null)
+    {
+      this.description = new String(annotation.description);
+    }
+    this.graphMin = annotation.graphMin;
+    this.graphMax = annotation.graphMax;
+    this.graph = annotation.graph;
+    this.graphHeight = annotation.graphHeight;
+    this.graphGroup = annotation.graphGroup;
+    this.groupRef = annotation.groupRef;
+    this.editable = annotation.editable;
+    this.autoCalculated = annotation.autoCalculated;
+    this.hasIcons = annotation.hasIcons;
+    this.hasText = annotation.hasText;
+    this.height = annotation.height;
+    this.label = annotation.label;
+    this.padGaps = annotation.padGaps;
+    this.visible = annotation.visible;
+    this.centreColLabels = annotation.centreColLabels;
+    this.scaleColLabel = annotation.scaleColLabel;
+    this.showAllColLabels = annotation.showAllColLabels;
+    this.calcId = annotation.calcId;
+    if (annotation.properties!=null)
+    {
+      properties = new HashMap<String,String>();
+      for (Map.Entry<String, String> val:annotation.properties.entrySet())
+      {
+        properties.put(val.getKey(), val.getValue());
+      }
+    }
+    if (this.hasScore = annotation.hasScore)
+    {
+      this.score = annotation.score;
+    }
+    if (annotation.threshold != null)
+    {
+      threshold = new GraphLine(annotation.threshold);
+    }
+    Annotation[] ann = annotation.annotations;
+    if (annotation.annotations != null)
+    {
+      this.annotations = new Annotation[ann.length];
+      for (int i = 0; i < ann.length; i++)
+      {
+        if (ann[i] != null)
+        {
+          annotations[i] = new Annotation(ann[i]);
+          if (_linecolour != null)
+          {
+            _linecolour = annotations[i].colour;
+          }
+        }
+      }
+    }
+    if (annotation.sequenceRef != null)
+    {
+      this.sequenceRef = annotation.sequenceRef;
+      if (annotation.sequenceMapping != null)
+      {
+        Integer p = null;
+        sequenceMapping = new Hashtable();
+        Enumeration pos = annotation.sequenceMapping.keys();
+        while (pos.hasMoreElements())
+        {
+          // could optimise this!
+          p = (Integer) pos.nextElement();
+          Annotation a = annotation.sequenceMapping.get(p);
+          if (a == null)
+          {
+            continue;
+          }
+          if (ann != null)
+          {
+            for (int i = 0; i < ann.length; i++)
             {
-                hasText = true;
+              if (ann[i] == a)
+              {
+                sequenceMapping.put(p, annotations[i]);
+              }
             }
+          }
         }
+      }
+      else
+      {
+        this.sequenceMapping = null;
+      }
+    }
+    // TODO: check if we need to do this: JAL-952
+    // if (this.isrna=annotation.isrna)
+    {
+      // _rnasecstr=new SequenceFeature[annotation._rnasecstr];
+    }
+    validateRangeAndDisplay(); // construct hashcodes, etc.
+  }
 
-        if(!drawValues && graphType!=NO_GRAPH)
+  /**
+   * clip the annotation to the columns given by startRes and endRes (inclusive)
+   * and prune any existing sequenceMapping to just those columns.
+   * 
+   * @param startRes
+   * @param endRes
+   */
+  public void restrict(int startRes, int endRes)
+  {
+    if (annotations == null)
+    {
+      // non-positional
+      return;
+    }
+    if (startRes < 0)
+    {
+      startRes = 0;
+    }
+    if (startRes >= annotations.length)
+    {
+      startRes = annotations.length - 1;
+    }
+    if (endRes >= annotations.length)
+    {
+      endRes = annotations.length - 1;
+    }
+    if (annotations == null)
+    {
+      return;
+    }
+    Annotation[] temp = new Annotation[endRes - startRes + 1];
+    if (startRes < annotations.length)
+    {
+      System.arraycopy(annotations, startRes, temp, 0, endRes - startRes
+              + 1);
+    }
+    if (sequenceRef != null)
+    {
+      // Clip the mapping, if it exists.
+      int spos = sequenceRef.findPosition(startRes);
+      int epos = sequenceRef.findPosition(endRes);
+      if (sequenceMapping != null)
+      {
+        Hashtable newmapping = new Hashtable();
+        Enumeration e = sequenceMapping.keys();
+        while (e.hasMoreElements())
         {
-          for (int i = 0; i < annotations.length; i++)
+          Integer pos = (Integer) e.nextElement();
+          if (pos.intValue() >= spos && pos.intValue() <= epos)
           {
-            if (annotations[i] != null)
-              annotations[i].displayCharacter = "";
+            newmapping.put(pos, sequenceMapping.get(pos));
           }
         }
+        sequenceMapping.clear();
+        sequenceMapping = newmapping;
+      }
     }
+    annotations = temp;
+  }
 
-    /**
-     * DOCUMENT ME!
-     *
-     * @return DOCUMENT ME!
-     */
-    public String toString()
+  /**
+   * set the annotation row to be at least length Annotations
+   * 
+   * @param length
+   *          minimum number of columns required in the annotation row
+   * @return false if the annotation row is greater than length
+   */
+  public boolean padAnnotation(int length)
+  {
+    if (annotations == null)
+    {
+      return true; // annotation row is correct - null == not visible and
+      // undefined length
+    }
+    if (annotations.length < length)
     {
-        StringBuffer buffer = new StringBuffer();
+      Annotation[] na = new Annotation[length];
+      System.arraycopy(annotations, 0, na, 0, annotations.length);
+      annotations = na;
+      return true;
+    }
+    return annotations.length > length;
 
-        for (int i = 0; i < annotations.length; i++)
-        {
-            if (annotations[i] != null)
-            {
-                if (graph!=0)
-                {
-                    buffer.append(annotations[i].value);
-                }
-                else if (hasIcons)
-                {
-                    buffer.append(annotations[i].secondaryStructure);
-                }
-                else
-                {
-                    buffer.append(annotations[i].displayCharacter);
-                }
-            }
+  }
+
+  /**
+   * DOCUMENT ME!
+   * 
+   * @return DOCUMENT ME!
+   */
+  public String toString()
+  {
+    StringBuffer buffer = new StringBuffer();
 
-            buffer.append(", ");
+    for (int i = 0; i < annotations.length; i++)
+    {
+      if (annotations[i] != null)
+      {
+        if (graph != 0)
+        {
+          buffer.append(annotations[i].value);
         }
+        else if (hasIcons)
+        {
+          buffer.append(annotations[i].secondaryStructure);
+        }
+        else
+        {
+          buffer.append(annotations[i].displayCharacter);
+        }
+      }
+
+      buffer.append(", ");
+    }
+    // TODO: remove disgusting hack for 'special' treatment of consensus line.
+    if (label.indexOf("Consensus") == 0)
+    {
+      buffer.append("\n");
 
-        if (label.equals("Consensus"))
+      for (int i = 0; i < annotations.length; i++)
+      {
+        if (annotations[i] != null)
         {
-            buffer.append("\n");
+          buffer.append(annotations[i].description);
+        }
 
-            for (int i = 0; i < annotations.length; i++)
-            {
-                if (annotations[i] != null)
-                {
-                    buffer.append(annotations[i].description);
-                }
+        buffer.append(", ");
+      }
+    }
 
-                buffer.append(", ");
-            }
+    return buffer.toString();
+  }
+
+  public void setThreshold(GraphLine line)
+  {
+    threshold = line;
+  }
+
+  public GraphLine getThreshold()
+  {
+    return threshold;
+  }
+
+  /**
+   * Attach the annotation to seqRef, starting from startRes position. If
+   * alreadyMapped is true then the indices of the annotation[] array are
+   * sequence positions rather than alignment column positions.
+   * 
+   * @param seqRef
+   * @param startRes
+   * @param alreadyMapped
+   */
+  public void createSequenceMapping(SequenceI seqRef, int startRes,
+          boolean alreadyMapped)
+  {
+
+    if (seqRef == null)
+    {
+      return;
+    }
+    sequenceRef = seqRef;
+    if (annotations == null)
+    {
+      return;
+    }
+    sequenceMapping = new java.util.Hashtable();
+
+    int seqPos;
+
+    for (int i = 0; i < annotations.length; i++)
+    {
+      if (annotations[i] != null)
+      {
+        if (alreadyMapped)
+        {
+          seqPos = seqRef.findPosition(i);
+        }
+        else
+        {
+          seqPos = i + startRes;
         }
 
-        return buffer.toString();
+        sequenceMapping.put(new Integer(seqPos), annotations[i]);
       }
+    }
 
-      public void setThreshold(GraphLine line)
+  }
+
+  public void adjustForAlignment()
+  {
+    if (sequenceRef == null)
+    {
+      return;
+    }
+
+    if (annotations == null)
+    {
+      return;
+    }
+
+    int a = 0, aSize = sequenceRef.getLength();
+
+    if (aSize == 0)
+    {
+      // Its been deleted
+      return;
+    }
+
+    int position;
+    Annotation[] temp = new Annotation[aSize];
+    Integer index;
+
+    for (a = sequenceRef.getStart(); a <= sequenceRef.getEnd(); a++)
+    {
+      index = new Integer(a);
+      if (sequenceMapping.containsKey(index))
       {
-        threshold = line;
+        position = sequenceRef.findIndex(a) - 1;
+
+        temp[position] = sequenceMapping.get(index);
       }
+    }
+
+    annotations = temp;
+  }
 
-      public GraphLine getThreshold()
+  /**
+   * remove any null entries in annotation row and return the number of non-null
+   * annotation elements.
+   * 
+   * @return
+   */
+  public int compactAnnotationArray()
+  {
+    int i = 0, iSize = annotations.length;
+    while (i < iSize)
+    {
+      if (annotations[i] == null)
+      {
+        if (i + 1 < iSize)
+        {
+          System.arraycopy(annotations, i + 1, annotations, i, iSize - i
+                  - 1);
+        }
+        iSize--;
+      }
+      else
       {
-          return threshold;
+        i++;
       }
+    }
+    Annotation[] ann = annotations;
+    annotations = new Annotation[i];
+    System.arraycopy(ann, 0, annotations, 0, i);
+    ann = null;
+    return iSize;
+  }
 
-      /**
-       * Attach the annotation to seqRef, starting from startRes position.
-       * @param seqRef
-       * @param startRes
-       */
-      public void createSequenceMapping(SequenceI seqRef,
-                                        int startRes,
-                                        boolean alreadyMapped)
+  /**
+   * Associate this annotion with the aligned residues of a particular sequence.
+   * sequenceMapping will be updated in the following way: null sequenceI -
+   * existing mapping will be discarded but annotations left in mapped
+   * positions. valid sequenceI not equal to current sequenceRef: mapping is
+   * discarded and rebuilt assuming 1:1 correspondence TODO: overload with
+   * parameter to specify correspondence between current and new sequenceRef
+   * 
+   * @param sequenceI
+   */
+  public void setSequenceRef(SequenceI sequenceI)
+  {
+    if (sequenceI != null)
+    {
+      if (sequenceRef != null)
+      {
+        boolean rIsDs=sequenceRef.getDatasetSequence()==null,tIsDs=sequenceI.getDatasetSequence()==null;
+        if (sequenceRef != sequenceI
+                && (rIsDs && !tIsDs && sequenceRef != sequenceI
+                        .getDatasetSequence())
+                && (!rIsDs && tIsDs && sequenceRef.getDatasetSequence() != sequenceI)
+                && (!rIsDs && !tIsDs && sequenceRef.getDatasetSequence() != sequenceI
+                        .getDatasetSequence())
+                && !sequenceRef.equals(sequenceI))
+        {
+          // if sequenceRef isn't intersecting with sequenceI
+          // throw away old mapping and reconstruct.
+          sequenceRef = null;
+          if (sequenceMapping != null)
+          {
+            sequenceMapping = null;
+            // compactAnnotationArray();
+          }
+          createSequenceMapping(sequenceI, 1, true);
+          adjustForAlignment();
+        }
+        else
+        {
+          // Mapping carried over
+          sequenceRef = sequenceI;
+        }
+      }
+      else
       {
-        if(seqRef == null)
-          return;
+        // No mapping exists
+        createSequenceMapping(sequenceI, 1, true);
+        adjustForAlignment();
+      }
+    }
+    else
+    {
+      // throw away the mapping without compacting.
+      sequenceMapping = null;
+      sequenceRef = null;
+    }
+  }
 
-        sequenceMapping = new java.util.Hashtable();
+  /**
+   * @return the score
+   */
+  public double getScore()
+  {
+    return score;
+  }
 
-        sequenceRef = seqRef;
-        int seqPos;
+  /**
+   * @param score
+   *          the score to set
+   */
+  public void setScore(double score)
+  {
+    hasScore = true;
+    this.score = score;
+  }
 
-        for(int i = 0; i < annotations.length; i++)
-        {
-            if (annotations[i] != null)
-            {
-              if(alreadyMapped)
-                seqPos = seqRef.findPosition(i);
-              else
-                seqPos = i+startRes;
+  /**
+   * 
+   * @return true if annotation has an associated score
+   */
+  public boolean hasScore()
+  {
+    return hasScore || !Double.isNaN(score);
+  }
 
-              sequenceMapping.put(new Integer(seqPos), annotations[i]);
-            }
-         }
+  /**
+   * Score only annotation
+   * 
+   * @param label
+   * @param description
+   * @param score
+   */
+  public AlignmentAnnotation(String label, String description, double score)
+  {
+    this(label, description, null);
+    setScore(score);
+  }
 
-        adjustForAlignment();
+  /**
+   * copy constructor with edit based on the hidden columns marked in colSel
+   * 
+   * @param alignmentAnnotation
+   * @param colSel
+   */
+  public AlignmentAnnotation(AlignmentAnnotation alignmentAnnotation,
+          ColumnSelection colSel)
+  {
+    this(alignmentAnnotation);
+    if (annotations == null)
+    {
+      return;
+    }
+    colSel.makeVisibleAnnotation(this);
+  }
+
+  public void setPadGaps(boolean padgaps, char gapchar)
+  {
+    this.padGaps = padgaps;
+    if (padgaps)
+    {
+      hasText = true;
+      for (int i = 0; i < annotations.length; i++)
+      {
+        if (annotations[i] == null)
+        {
+          annotations[i] = new Annotation(String.valueOf(gapchar), null,
+                  ' ', 0f, null);
+        }
+        else if (annotations[i].displayCharacter == null
+                || annotations[i].displayCharacter.equals(" "))
+        {
+          annotations[i].displayCharacter = String.valueOf(gapchar);
+        }
       }
+    }
+  }
 
-      public void adjustForAlignment()
+  /**
+   * format description string for display
+   * 
+   * @param seqname
+   * @return Get the annotation description string optionally prefixed by
+   *         associated sequence name (if any)
+   */
+  public String getDescription(boolean seqname)
+  {
+    if (seqname && this.sequenceRef != null)
+    {
+      int i = description.toLowerCase().indexOf("<html>");
+      if (i > -1)
       {
-          int a=0, aSize = sequenceRef.getLength();
+        // move the html tag to before the sequence reference.
+        return "<html>" + sequenceRef.getName() + " : "
+                + description.substring(i + 6);
+      }
+      return sequenceRef.getName() + " : " + description;
+    }
+    return description;
+  }
 
-          if(aSize == 0)
-          {
-            //Its been deleted
-            return;
-          }
+  public boolean isValidStruc()
+  {
+    return invalidrnastruc == -1;
+  }
 
-          int position;
-          Annotation[] temp = new Annotation[aSize];
-          Integer index;
+  public long getInvalidStrucPos()
+  {
+    return invalidrnastruc;
+  }
 
-          for (a = sequenceRef.getStart(); a <= sequenceRef.getEnd(); a++)
-          {
-              index = new Integer(a);
-              if(sequenceMapping.containsKey(index))
-              {
-                position = sequenceRef.findIndex(a)-1;
+  /**
+   * machine readable ID string indicating what generated this annotation
+   */
+  protected String calcId = "";
 
-                temp[position] = (Annotation)sequenceMapping.get(index);
-              }
+  /**
+   * properties associated with the calcId
+   */
+  protected Map<String, String> properties = new HashMap<String, String>();
+
+  /**
+   * base colour for line graphs. If null, will be set automatically by
+   * searching the alignment annotation
+   */
+  public java.awt.Color _linecolour;
+
+  public String getCalcId()
+  {
+    return calcId;
+  }
+
+  public void setCalcId(String calcId)
+  {
+    this.calcId = calcId;
+  }
+
+  public boolean isRNA()
+  {
+    return isrna;
+  }
+
+  /**
+   * transfer annotation to the given sequence using the given mapping from the
+   * current positions or an existing sequence mapping
+   * 
+   * @param sq
+   * @param sp2sq
+   *          map involving sq as To or From
+   */
+  public void liftOver(SequenceI sq, Mapping sp2sq)
+  {
+    if (sp2sq.getMappedWidth() != sp2sq.getWidth())
+    {
+      // TODO: employ getWord/MappedWord to transfer annotation between cDNA and Protein reference frames
+      throw new Error("liftOver currently not implemented for transfer of annotation between different types of seqeunce");
+    }
+    boolean mapIsTo = (sp2sq != null) ? (sp2sq.getTo() == sq || sp2sq
+            .getTo() == sq.getDatasetSequence()) : false;
+
+    // TODO build a better annotation element map and get rid of annotations[]
+    Hashtable<Integer, Annotation> mapForsq = new Hashtable();
+    if (sequenceMapping != null)
+    {
+      if (sp2sq != null)
+      {
+        for (Entry<Integer, Annotation> ie : sequenceMapping.entrySet())
+        {
+          Integer mpos = Integer.valueOf(mapIsTo ? sp2sq
+                  .getMappedPosition(ie.getKey()) : sp2sq.getPosition(ie
+                  .getKey()));
+          if (mpos >= sq.getStart() && mpos <= sq.getEnd())
+          {
+            mapForsq.put(mpos, ie.getValue());
           }
+        }
+        sequenceMapping = mapForsq;
+        sequenceRef = sq;
+        adjustForAlignment();
+      }
+      else
+      {
+        // trim positions
+      }
+    }
+  }
 
-          annotations = temp;
+  /**
+   * like liftOver but more general.
+   * 
+   * Takes an array of int pairs that will be used to update the internal
+   * sequenceMapping and so shuffle the annotated positions
+   * 
+   * @param newref
+   *          - new sequence reference for the annotation row - if null,
+   *          sequenceRef is left unchanged
+   * @param mapping
+   *          array of ints containing corresponding positions
+   * @param from
+   *          - column for current coordinate system (-1 for index+1)
+   * @param to
+   *          - column for destination coordinate system (-1 for index+1)
+   * @param idxoffset
+   *          - offset added to index when referencing either coordinate system
+   * @note no checks are made as to whether from and/or to are sensible
+   * @note caller should add the remapped annotation to newref if they have not
+   *       already
+   */
+  public void remap(SequenceI newref, int[][] mapping, int from, int to,
+          int idxoffset)
+  {
+    if (mapping != null)
+    {
+      Hashtable<Integer, Annotation> old = sequenceMapping, remap = new Hashtable<Integer, Annotation>();
+      int index = -1;
+      for (int mp[] : mapping)
+      {
+        if (index++ < 0)
+        {
+          continue;
+        }
+        Annotation ann = null;
+        if (from == -1)
+        {
+          ann = sequenceMapping.get(Integer.valueOf(idxoffset + index));
+        }
+        else
+        {
+          if (mp != null && mp.length > from)
+          {
+            ann = sequenceMapping.get(Integer.valueOf(mp[from]));
+          }
+        }
+        if (ann != null)
+        {
+          if (to == -1)
+          {
+            remap.put(Integer.valueOf(idxoffset + index), ann);
+          }
+          else
+          {
+            if (to > -1 && to < mp.length)
+            {
+              remap.put(Integer.valueOf(mp[to]), ann);
+            }
+          }
+        }
       }
-}
+      sequenceMapping = remap;
+      old.clear();
+      if (newref != null)
+      {
+        sequenceRef = newref;
+      }
+      adjustForAlignment();
+    }
+  }
 
+  public String getProperty(String property)
+  {
+    if (properties == null)
+    {
+      return null;
+    }
+    return properties.get(property);
+  }
 
+  public void setProperty(String property, String value)
+  {
+    if (properties==null)
+    {
+      properties = new HashMap<String,String>();
+    }
+    properties.put(property, value);
+  }
+
+  public boolean hasProperties()
+  {
+    return properties != null && properties.size() > 0;
+  }
+
+  public Collection<String> getProperties()
+  {
+    if (properties == null)
+    {
+      return Collections.EMPTY_LIST;
+    }
+    return properties.keySet();
+  }
+}