update author list in license for (JAL-826)
[jalview.git] / src / jalview / gui / AnnotationPanel.java
index 2226e8b..a88aa4a 100755 (executable)
 /*
- * Jalview - A Sequence Alignment Editor and Viewer
- * Copyright (C) 2007 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 2.7)
+ * Copyright (C) 2011 J Procter, AM Waterhouse, J Engelhardt, LM Lui, G Barton, M Clamp, S Searle
+ * 
+ * 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/>.
  */
 package jalview.gui;
 
 import java.awt.*;
 import java.awt.event.*;
+import java.awt.font.LineMetrics;
+import java.awt.geom.AffineTransform;
 import java.awt.image.*;
+import java.util.Hashtable;
+
 import javax.swing.*;
 
+import com.stevesoft.pat.Regex;
+
+import jalview.analysis.AAFrequency;
+import jalview.analysis.StructureFrequency;
 import jalview.datamodel.*;
+import jalview.schemes.ColourSchemeI;
 
 /**
  * DOCUMENT ME!
- *
+ * 
  * @author $author$
  * @version $Revision$
  */
-public class AnnotationPanel
-    extends JPanel implements MouseListener,
-    MouseMotionListener, ActionListener, AdjustmentListener
+public class AnnotationPanel extends JPanel implements MouseListener,
+        MouseMotionListener, ActionListener, AdjustmentListener
 {
   final String HELIX = "Helix";
+
   final String SHEET = "Sheet";
+
+  /**
+   * For RNA secondary structure "stems" aka helices
+   */
+  final String STEM = "RNA Helix";
+
   final String LABEL = "Label";
+
   final String REMOVE = "Remove Annotation";
+
   final String COLOUR = "Colour";
+
   final Color HELIX_COLOUR = Color.red.darker();
+
   final Color SHEET_COLOUR = Color.green.darker().darker();
+
+  final Color STEM_COLOUR = Color.blue.darker();
+
   /** DOCUMENT ME!! */
   AlignViewport av;
+
   AlignmentPanel ap;
+
   int activeRow = -1;
+
   BufferedImage image;
+
   BufferedImage fadedImage;
+
   Graphics2D gg;
+
   FontMetrics fm;
+
   int imgWidth = 0;
+
   boolean fastPaint = false;
 
-  //Used For mouse Dragging and resizing graphs
+  // Used For mouse Dragging and resizing graphs
   int graphStretch = -1;
+
   int graphStretchY = -1;
-  int min; //used by mouseDragged to see if user
-  int max; //used by mouseDragged to see if user
+
+  int min; // used by mouseDragged to see if user
+
+  int max; // used by mouseDragged to see if user
+
   boolean mouseDragging = false;
 
   boolean MAC = false;
 
+  // for editing cursor
+  int cursorX = 0;
+
+  int cursorY = 0;
+
   /**
    * Creates a new AnnotationPanel object.
-   *
-   * @param ap DOCUMENT ME!
+   * 
+   * @param ap
+   *          DOCUMENT ME!
    */
   public AnnotationPanel(AlignmentPanel ap)
   {
@@ -80,7 +119,8 @@ public class AnnotationPanel
     this.setLayout(null);
     addMouseListener(this);
     addMouseMotionListener(this);
-    ap.annotationScroller.getVerticalScrollBar().addAdjustmentListener(this);
+    ap.annotationScroller.getVerticalScrollBar()
+            .addAdjustmentListener(this);
   }
 
   public AnnotationPanel(AlignViewport av)
@@ -90,19 +130,42 @@ public class AnnotationPanel
 
   /**
    * DOCUMENT ME!
-   *
-   * @param evt DOCUMENT ME!
+   * 
+   * @param evt
+   *          DOCUMENT ME!
    */
   public void adjustmentValueChanged(AdjustmentEvent evt)
   {
-    ap.alabels.setScrollOffset( -evt.getValue());
+    ap.alabels.setScrollOffset(-evt.getValue());
   }
 
   /**
-   * DOCUMENT ME!
+   * Calculates the height of the annotation displayed in the annotation panel.
+   * Callers should normally call the ap.adjustAnnotationHeight method to ensure
+   * all annotation associated components are updated correctly.
+   * 
    */
   public int adjustPanelHeight()
   {
+    int height = calcPanelHeight();
+    this.setPreferredSize(new Dimension(1, height));
+    if (ap != null)
+    {
+      // revalidate only when the alignment panel is fully constructed
+      ap.validate();
+    }
+
+    return height;
+  }
+
+  /**
+   * calculate the height for visible annotation, revalidating bounds where
+   * necessary ABSTRACT GUI METHOD
+   * 
+   * @return total height of annotation
+   */
+  public int calcPanelHeight()
+  {
     // setHeight of panels
     AlignmentAnnotation[] aa = av.alignment.getAlignmentAnnotation();
     int height = 0;
@@ -111,6 +174,11 @@ public class AnnotationPanel
     {
       for (int i = 0; i < aa.length; i++)
       {
+        if (aa[i] == null)
+        {
+          System.err.println("Null annotation row: ignoring.");
+          continue;
+        }
         if (!aa[i].visible)
         {
           continue;
@@ -141,24 +209,27 @@ public class AnnotationPanel
         height += aa[i].height;
       }
     }
-    else
+    if (height == 0)
     {
+      // set minimum
       height = 20;
     }
-
-    this.setPreferredSize(new Dimension(1, height));
-
     return height;
   }
 
   /**
    * DOCUMENT ME!
-   *
-   * @param evt DOCUMENT ME!
+   * 
+   * @param evt
+   *          DOCUMENT ME!
    */
   public void actionPerformed(ActionEvent evt)
   {
     AlignmentAnnotation[] aa = av.alignment.getAlignmentAnnotation();
+    if (aa == null)
+    {
+      return;
+    }
     Annotation[] anot = aa[activeRow].annotations;
 
     if (anot.length < av.getColumnSelection().getMax())
@@ -179,14 +250,15 @@ public class AnnotationPanel
     else if (evt.getActionCommand().equals(LABEL))
     {
       String exMesg = collectAnnotVals(anot, av.getColumnSelection(), LABEL);
-      String label = JOptionPane.showInputDialog(this,"Enter label",exMesg);
-      
+      String label = JOptionPane.showInputDialog(this, "Enter label",
+              exMesg);
+
       if (label == null)
       {
         return;
       }
 
-      if ( (label.length() > 0) && !aa[activeRow].hasText)
+      if ((label.length() > 0) && !aa[activeRow].hasText)
       {
         aa[activeRow].hasText = true;
       }
@@ -195,13 +267,18 @@ public class AnnotationPanel
       {
         int index = av.getColumnSelection().columnAt(i);
 
-        if(!av.colSel.isVisible(index))
+        if (!av.colSel.isVisible(index))
           continue;
 
         if (anot[index] == null)
         {
-          anot[index] = new Annotation(label, "", ' ', 0); // TODO: verify that null exceptions aren't raised elsewhere.
-        } else {
+          anot[index] = new Annotation(label, "", ' ', 0); // TODO: verify that
+          // null exceptions
+          // aren't raised
+          // elsewhere.
+        }
+        else
+        {
           anot[index].displayCharacter = label;
         }
       }
@@ -209,14 +286,13 @@ public class AnnotationPanel
     else if (evt.getActionCommand().equals(COLOUR))
     {
       Color col = JColorChooser.showDialog(this,
-                                           "Choose foreground colour",
-                                           Color.black);
+              "Choose foreground colour", Color.black);
 
       for (int i = 0; i < av.getColumnSelection().size(); i++)
       {
         int index = av.getColumnSelection().columnAt(i);
 
-        if(!av.colSel.isVisible(index))
+        if (!av.colSel.isVisible(index))
           continue;
 
         if (anot[index] == null)
@@ -227,7 +303,8 @@ public class AnnotationPanel
         anot[index].colour = col;
       }
     }
-    else // HELIX OR SHEET
+    else
+    // HELIX OR SHEET
     {
       char type = 0;
       String symbol = "\u03B1";
@@ -242,21 +319,27 @@ public class AnnotationPanel
         symbol = "\u03B2";
       }
 
+      // Added by LML to color stems
+      else if (evt.getActionCommand().equals(STEM))
+      {
+        type = 'S';
+        symbol = "\u03C3";
+      }
+
       if (!aa[activeRow].hasIcons)
       {
         aa[activeRow].hasIcons = true;
       }
 
       String label = JOptionPane.showInputDialog(
-          "Enter a label for the structure?",
-          symbol);
+              "Enter a label for the structure?", symbol);
 
       if (label == null)
       {
         return;
       }
 
-      if ( (label.length() > 0) && !aa[activeRow].hasText)
+      if ((label.length() > 0) && !aa[activeRow].hasText)
       {
         aa[activeRow].hasText = true;
       }
@@ -265,7 +348,7 @@ public class AnnotationPanel
       {
         int index = av.getColumnSelection().columnAt(i);
 
-        if(!av.colSel.isVisible(index))
+        if (!av.colSel.isVisible(index))
           continue;
 
         if (anot[index] == null)
@@ -284,40 +367,44 @@ public class AnnotationPanel
     return;
   }
 
-  private String collectAnnotVals(Annotation[] anot, ColumnSelection columnSelection,
-          String label2)
+  private String collectAnnotVals(Annotation[] anot,
+          ColumnSelection columnSelection, String label2)
   {
-    String collatedInput="";
-    String last="";
+    String collatedInput = "";
+    String last = "";
     for (int i = 0; i < columnSelection.size(); i++)
     {
       int index = columnSelection.columnAt(i);
       // always check for current display state - just in case
-      if(!av.colSel.isVisible(index))
+      if (!av.colSel.isVisible(index))
         continue;
-      String tlabel=null;
+      String tlabel = null;
       if (anot[index] != null)
-      {
-        if (label2.equals(HELIX) || label2.equals(SHEET) || label2.equals(LABEL))
+      { // LML added stem code
+        if (label2.equals(HELIX) || label2.equals(SHEET)
+                || label2.equals(STEM) || label2.equals(LABEL))
         {
           tlabel = anot[index].description;
-          if (tlabel == null)
+          if (tlabel == null || tlabel.length() < 1)
           {
-            if (label2.equals(HELIX) || label2.equals(SHEET))
+            if (label2.equals(HELIX) || label2.equals(SHEET)
+                    || label2.equals(STEM))
             {
-              tlabel = ""+anot[index].secondaryStructure;
-            } else {
-              tlabel = ""+anot[index].displayCharacter;
-            }            
+              tlabel = "" + anot[index].secondaryStructure;
+            }
+            else
+            {
+              tlabel = "" + anot[index].displayCharacter;
+            }
           }
         }
-        if (tlabel!=null && !tlabel.equals(last))
+        if (tlabel != null && !tlabel.equals(last))
         {
-          if (last.length()>0)
+          if (last.length() > 0)
           {
-            collatedInput+=" ";
+            collatedInput += " ";
           }
-          collatedInput+=tlabel;
+          collatedInput += tlabel;
         }
       }
     }
@@ -326,8 +413,9 @@ public class AnnotationPanel
 
   /**
    * DOCUMENT ME!
-   *
-   * @param evt DOCUMENT ME!
+   * 
+   * @param evt
+   *          DOCUMENT ME!
    */
   public void mousePressed(MouseEvent evt)
   {
@@ -356,7 +444,7 @@ public class AnnotationPanel
         }
         else if (aa[i].graph > 0)
         {
-          //Stretch Graph
+          // Stretch Graph
           graphStretch = i;
           graphStretchY = evt.getY();
         }
@@ -373,12 +461,25 @@ public class AnnotationPanel
       }
 
       JPopupMenu pop = new JPopupMenu("Structure type");
-      JMenuItem item = new JMenuItem(HELIX);
-      item.addActionListener(this);
-      pop.add(item);
-      item = new JMenuItem(SHEET);
-      item.addActionListener(this);
-      pop.add(item);
+      JMenuItem item;
+      /*
+       * Just display the needed structure options
+       */
+      if (av.alignment.isNucleotide() == true)
+      {
+        item = new JMenuItem(STEM);
+        item.addActionListener(this);
+        pop.add(item);
+      }
+      else
+      {
+        item = new JMenuItem(HELIX);
+        item.addActionListener(this);
+        pop.add(item);
+        item = new JMenuItem(SHEET);
+        item.addActionListener(this);
+        pop.add(item);
+      }
       item = new JMenuItem(LABEL);
       item.addActionListener(this);
       pop.add(item);
@@ -404,8 +505,9 @@ public class AnnotationPanel
 
   /**
    * DOCUMENT ME!
-   *
-   * @param evt DOCUMENT ME!
+   * 
+   * @param evt
+   *          DOCUMENT ME!
    */
   public void mouseReleased(MouseEvent evt)
   {
@@ -417,18 +519,20 @@ public class AnnotationPanel
 
   /**
    * DOCUMENT ME!
-   *
-   * @param evt DOCUMENT ME!
+   * 
+   * @param evt
+   *          DOCUMENT ME!
    */
   public void mouseEntered(MouseEvent evt)
   {
-     ap.scalePanel.mouseEntered(evt);
+    ap.scalePanel.mouseEntered(evt);
   }
 
   /**
    * DOCUMENT ME!
-   *
-   * @param evt DOCUMENT ME!
+   * 
+   * @param evt
+   *          DOCUMENT ME!
    */
   public void mouseExited(MouseEvent evt)
   {
@@ -437,15 +541,16 @@ public class AnnotationPanel
 
   /**
    * DOCUMENT ME!
-   *
-   * @param evt DOCUMENT ME!
+   * 
+   * @param evt
+   *          DOCUMENT ME!
    */
   public void mouseDragged(MouseEvent evt)
   {
     if (graphStretch > -1)
     {
-      av.alignment.getAlignmentAnnotation()[graphStretch].graphHeight +=
-          graphStretchY - evt.getY();
+      av.alignment.getAlignmentAnnotation()[graphStretch].graphHeight += graphStretchY
+              - evt.getY();
       if (av.alignment.getAlignmentAnnotation()[graphStretch].graphHeight < 0)
       {
         av.alignment.getAlignmentAnnotation()[graphStretch].graphHeight = 0;
@@ -462,8 +567,9 @@ public class AnnotationPanel
 
   /**
    * DOCUMENT ME!
-   *
-   * @param evt DOCUMENT ME!
+   * 
+   * @param evt
+   *          DOCUMENT ME!
    */
   public void mouseMoved(MouseEvent evt)
   {
@@ -506,19 +612,19 @@ public class AnnotationPanel
       res = av.getColumnSelection().adjustForHiddenColumns(res);
     }
 
-    if (aa[row].annotations != null
-        && row > -1
-        && res < (int) aa[row].annotations.length)
+    if (row > -1 && aa[row].annotations != null
+            && res < (int) aa[row].annotations.length)
     {
       if (aa[row].graphGroup > -1)
       {
         StringBuffer tip = new StringBuffer("<html>");
         for (int gg = 0; gg < aa.length; gg++)
         {
-          if (aa[gg].graphGroup == aa[row].graphGroup && aa[gg].annotations[res] != null)
+          if (aa[gg].graphGroup == aa[row].graphGroup
+                  && aa[gg].annotations[res] != null)
           {
-            tip.append(aa[gg].label + " " + aa[gg].annotations[res].description +
-                       "<br>");
+            tip.append(aa[gg].label + " "
+                    + aa[gg].annotations[res].description + "<br>");
           }
         }
         if (tip.length() != 6)
@@ -528,15 +634,21 @@ public class AnnotationPanel
         }
       }
       else if (aa[row].annotations[res] != null
-               && aa[row].annotations[res].description != null)
+              && aa[row].annotations[res].description != null
+              && aa[row].annotations[res].description.length() > 0)
       {
         this.setToolTipText(aa[row].annotations[res].description);
       }
+      else
+      {
+        // clear the tooltip.
+        this.setToolTipText(null);
+      }
 
       if (aa[row].annotations[res] != null)
       {
-        StringBuffer text = new StringBuffer("Sequence position " +
-                                             (res + 1));
+        StringBuffer text = new StringBuffer("Sequence position "
+                + (res + 1));
 
         if (aa[row].annotations[res].description != null)
         {
@@ -554,17 +666,51 @@ public class AnnotationPanel
 
   /**
    * DOCUMENT ME!
-   *
-   * @param evt DOCUMENT ME!
+   * 
+   * @param evt
+   *          DOCUMENT ME!
    */
   public void mouseClicked(MouseEvent evt)
   {
+    if (activeRow != -1)
+    {
+      AlignmentAnnotation[] aa = av.alignment.getAlignmentAnnotation();
+      AlignmentAnnotation anot = aa[activeRow];
+
+      if (anot.description.equals("secondary structure"))
+      {
+        // System.out.println(anot.description+" "+anot.getRNAStruc());
+      }
+    }
+  }
+
+  // TODO mouseClicked-content and drawCursor are quite experimental!
+  public void drawCursor(Graphics graphics, SequenceI seq, int res, int x1,
+          int y1)
+  {
+    int pady = av.charHeight / 5;
+    int charOffset = 0;
+    graphics.setColor(Color.black);
+    graphics.fillRect(x1, y1, av.charWidth, av.charHeight);
+
+    if (av.validCharWidth)
+    {
+      graphics.setColor(Color.white);
+
+      char s = seq.getCharAt(res);
+
+      charOffset = (av.charWidth - fm.charWidth(s)) / 2;
+      graphics.drawString(String.valueOf(s), charOffset + x1,
+              (y1 + av.charHeight) - pady);
+    }
+
   }
 
   /**
    * DOCUMENT ME!
-   *
-   * @param g DOCUMENT ME!
+   * 
+   * @param g
+   *          DOCUMENT ME!
    */
   public void paintComponent(Graphics g)
   {
@@ -573,9 +719,8 @@ public class AnnotationPanel
 
     if (image != null)
     {
-      if (fastPaint
-          || (getVisibleRect().width != g.getClipBounds().width)
-          || (getVisibleRect().height != g.getClipBounds().height))
+      if (fastPaint || (getVisibleRect().width != g.getClipBounds().width)
+              || (getVisibleRect().height != g.getClipBounds().height))
       {
         g.drawImage(image, 0, 0, this);
         fastPaint = false;
@@ -583,19 +728,19 @@ public class AnnotationPanel
       }
     }
     imgWidth = (av.endRes - av.startRes + 1) * av.charWidth;
-    if (imgWidth<1)
+    if (imgWidth < 1)
       return;
     if (image == null || imgWidth != image.getWidth()
-        || image.getHeight(this) != getHeight())
+            || image.getHeight(this) != getHeight())
     {
       image = new BufferedImage(imgWidth, ap.annotationPanel.getHeight(),
-                                BufferedImage.TYPE_INT_RGB);
+              BufferedImage.TYPE_INT_RGB);
       gg = (Graphics2D) image.getGraphics();
 
       if (av.antiAlias)
       {
         gg.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
-                            RenderingHints.VALUE_ANTIALIAS_ON);
+                RenderingHints.VALUE_ANTIALIAS_ON);
       }
 
       gg.setFont(av.getFont());
@@ -607,20 +752,20 @@ public class AnnotationPanel
     drawComponent(gg, av.startRes, av.endRes + 1);
     g.drawImage(image, 0, 0, this);
   }
+
   /**
    * non-Thread safe repaint
-   *
-   * @param horizontal repaint with horizontal shift in alignment
+   * 
+   * @param horizontal
+   *          repaint with horizontal shift in alignment
    */
   public void fastPaint(int horizontal)
   {
 
-    if ( (horizontal == 0)
-        || gg == null
-        || av.alignment.getAlignmentAnnotation() == null
-        || av.alignment.getAlignmentAnnotation().length < 1
-        || av.updatingConsensus
-        || av.updatingConservation)
+    if ((horizontal == 0) || gg == null
+            || av.alignment.getAlignmentAnnotation() == null
+            || av.alignment.getAlignmentAnnotation().length < 1
+            || av.updatingConsensus || av.updatingConservation)
     {
       repaint();
       return;
@@ -645,7 +790,7 @@ public class AnnotationPanel
 
     drawComponent(gg, sr, er);
 
-    gg.translate( -transX, 0);
+    gg.translate(-transX, 0);
 
     fastPaint = true;
     repaint();
@@ -654,10 +799,13 @@ public class AnnotationPanel
 
   /**
    * DOCUMENT ME!
-   *
-   * @param g DOCUMENT ME!
-   * @param startRes DOCUMENT ME!
-   * @param endRes DOCUMENT ME!
+   * 
+   * @param g
+   *          DOCUMENT ME!
+   * @param startRes
+   *          DOCUMENT ME!
+   * @param endRes
+   *          DOCUMENT ME!
    */
   public void drawComponent(Graphics g, int startRes, int endRes)
   {
@@ -667,24 +815,21 @@ public class AnnotationPanel
       {
         return;
       }
-      //We'll keep a record of the old image,
-      //and draw a faded image until the calculation
-      //has completed
-      if (fadedImage == null
-          || fadedImage.getWidth() != imgWidth
-          || fadedImage.getHeight() != image.getHeight())
+      // We'll keep a record of the old image,
+      // and draw a faded image until the calculation
+      // has completed
+      if (fadedImage == null || fadedImage.getWidth() != imgWidth
+              || fadedImage.getHeight() != image.getHeight())
       {
-        fadedImage = new BufferedImage(
-            imgWidth, image.getHeight(),
-            BufferedImage.TYPE_INT_RGB);
+        fadedImage = new BufferedImage(imgWidth, image.getHeight(),
+                BufferedImage.TYPE_INT_RGB);
 
         Graphics2D fadedG = (Graphics2D) fadedImage.getGraphics();
 
         fadedG.setColor(Color.white);
         fadedG.fillRect(0, 0, imgWidth, image.getHeight());
 
-        fadedG.setComposite(
-            AlphaComposite.getInstance(
+        fadedG.setComposite(AlphaComposite.getInstance(
                 AlphaComposite.SRC_OVER, .3f));
         fadedG.drawImage(image, 0, 0, this);
 
@@ -705,8 +850,8 @@ public class AnnotationPanel
       fm = g.getFontMetrics();
     }
 
-    if ( (av.alignment.getAlignmentAnnotation() == null) ||
-        (av.alignment.getAlignmentAnnotation().length < 1))
+    if ((av.alignment.getAlignmentAnnotation() == null)
+            || (av.alignment.getAlignmentAnnotation().length < 1))
     {
       g.setColor(Color.white);
       g.fillRect(0, 0, getWidth(), getHeight());
@@ -721,16 +866,23 @@ public class AnnotationPanel
 
     AlignmentAnnotation[] aa = av.alignment.getAlignmentAnnotation();
 
-    int x = 0, y=0;
+    int x = 0, y = 0;
     int column = 0;
     char lastSS;
     int lastSSX;
     int iconOffset = 0;
     boolean validRes = false;
-
+    boolean validEnd = false;
+    boolean labelAllCols = false;
+    boolean centreColLabels, centreColLabelsDef = av
+            .getCentreColumnLabels();
+    boolean scaleColLabel = false;
     boolean[] graphGroupDrawn = new boolean[aa.length];
-
-    //\u03B2 \u03B1
+    int charOffset = 0; // offset for a label
+    float fmWidth, fmScaling = 1f; // scaling for a label to fit it into a
+    // column.
+    Font ofont = g.getFont();
+    // \u03B2 \u03B1
     for (int i = 0; i < aa.length; i++)
     {
       AlignmentAnnotation row = aa[i];
@@ -739,10 +891,11 @@ public class AnnotationPanel
       {
         continue;
       }
-
+      centreColLabels = row.centreColLabels || centreColLabelsDef;
+      labelAllCols = row.showAllColLabels;
+      scaleColLabel = row.scaleColLabel;
       lastSS = ' ';
       lastSSX = 0;
-
       if (row.graph > 0)
       {
         if (row.graphGroup > -1 && graphGroupDrawn[row.graphGroup])
@@ -755,13 +908,13 @@ public class AnnotationPanel
 
         if (row.hasText)
         {
-          iconOffset =av.charHeight -fm.getDescent();
+          iconOffset = av.charHeight - fm.getDescent();
           y -= av.charHeight;
         }
       }
       else if (row.hasText)
       {
-        iconOffset = av.charHeight -fm.getDescent();
+        iconOffset = av.charHeight - fm.getDescent();
 
       }
       else
@@ -769,29 +922,27 @@ public class AnnotationPanel
         iconOffset = 0;
       }
 
-
       if (av.updatingConsensus && aa[i] == av.consensus)
       {
         y += av.charHeight;
 
-        g.drawImage(fadedImage,
-                    0, y - row.height, imgWidth, y,
-                    0, y - row.height, imgWidth, y, this);
+        g.drawImage(fadedImage, 0, y - row.height, imgWidth, y, 0, y
+                - row.height, imgWidth, y, this);
         g.setColor(Color.black);
         // g.drawString("Calculating Consensus....",20, y-row.height/2);
 
         continue;
       }
-      else if (av.updatingConservation && aa[i].label.equals("Conservation"))
+      else if (av.updatingConservation
+              && aa[i].label.equals("Conservation"))
       {
 
         y += av.charHeight;
-        g.drawImage(fadedImage,
-                    0, y - row.height, imgWidth, y,
-                    0, y - row.height, imgWidth, y, this);
+        g.drawImage(fadedImage, 0, y - row.height, imgWidth, y, 0, y
+                - row.height, imgWidth, y, this);
 
         g.setColor(Color.black);
-        //  g.drawString("Calculating Conservation.....",20, y-row.height/2);
+        // g.drawString("Calculating Conservation.....",20, y-row.height/2);
 
         continue;
       }
@@ -799,23 +950,23 @@ public class AnnotationPanel
       {
 
         y += av.charHeight;
-        g.drawImage(fadedImage,
-                    0, y - row.height, imgWidth, y,
-                    0, y - row.height, imgWidth, y, this);
+        g.drawImage(fadedImage, 0, y - row.height, imgWidth, y, 0, y
+                - row.height, imgWidth, y, this);
         g.setColor(Color.black);
-        /// g.drawString("Calculating Quality....",20, y-row.height/2);
+        // / g.drawString("Calculating Quality....",20, y-row.height/2);
 
         continue;
       }
 
-
-
-      x = 0;
+      // first pass sets up state for drawing continuation from left-hand column
+      // of startRes
+      x = (startRes == 0) ? 0 : -1;
       while (x < endRes - startRes)
       {
         if (av.hasHiddenColumns)
         {
-          column = av.getColumnSelection().adjustForHiddenColumns(startRes + x);
+          column = av.getColumnSelection().adjustForHiddenColumns(
+                  startRes + x);
           if (column > row.annotations.length - 1)
           {
             break;
@@ -826,8 +977,7 @@ public class AnnotationPanel
           column = startRes + x;
         }
 
-        if ( (row.annotations==null) 
-                || (row.annotations.length <= column) 
+        if ((row.annotations == null) || (row.annotations.length <= column)
                 || (row.annotations[column] == null))
         {
           validRes = false;
@@ -836,225 +986,178 @@ public class AnnotationPanel
         {
           validRes = true;
         }
-
-        if (activeRow == i)
+        if (x > -1)
         {
-          g.setColor(Color.red);
-
-          if (av.getColumnSelection() != null)
+          if (activeRow == i)
           {
-            for (int n = 0; n < av.getColumnSelection().size(); n++)
-            {
-              int v = av.getColumnSelection().columnAt(n);
+            g.setColor(Color.red);
 
-              if (v == column)
+            if (av.getColumnSelection() != null)
+            {
+              for (int n = 0; n < av.getColumnSelection().size(); n++)
               {
-                g.fillRect(x * av.charWidth, y,
-                           av.charWidth, av.charHeight);
+                int v = av.getColumnSelection().columnAt(n);
+
+                if (v == column)
+                {
+                  g.fillRect(x * av.charWidth, y, av.charWidth,
+                          av.charHeight);
+                }
               }
             }
           }
-        }
 
-        if (av.validCharWidth && validRes
-            && row.annotations[column].displayCharacter != null
-            && (row.annotations[column].displayCharacter.length() > 0))
-        {
+          if (av.validCharWidth
+                  && validRes
+                  && row.annotations[column].displayCharacter != null
+                  && (row.annotations[column].displayCharacter.length() > 0))
+          {
 
-          int charOffset = (av.getCentreColumnLabels()) ? ((av.charWidth -
-                            fm.charsWidth(row.annotations[column].
-                                         displayCharacter.toCharArray(),0,
-                                         row.annotations[column].
-                                         displayCharacter.length())) / 2)
-                                         : (av.charWidth - fm.charWidth(row.annotations[column].
-                                                 displayCharacter.charAt(0))) / 2;
+            if (centreColLabels || scaleColLabel)
+            {
+              fmWidth = (float) fm.charsWidth(
+                      row.annotations[column].displayCharacter
+                              .toCharArray(), 0,
+                      row.annotations[column].displayCharacter.length());
 
-          if (row.annotations[column].colour == null)
-            g.setColor(Color.black);
-          else
-            g.setColor(row.annotations[column].colour);
+              if (scaleColLabel)
+              {
+                // justify the label and scale to fit in column
+                if (fmWidth > av.charWidth)
+                {
+                  // scale only if the current font isn't already small enough
+                  fmScaling = av.charWidth;
+                  fmScaling /= fmWidth;
+                  g.setFont(ofont.deriveFont(AffineTransform
+                          .getScaleInstance(fmScaling, 1.0)));
+                  // and update the label's width to reflect the scaling.
+                  fmWidth = av.charWidth;
+                }
+              }
+            }
+            else
+            {
+              fmWidth = (float) fm
+                      .charWidth(row.annotations[column].displayCharacter
+                              .charAt(0));
+            }
+            charOffset = (int) ((av.charWidth - fmWidth) / 2f);
 
-          if (column == 0 || row.graph > 0)
-          {
-            g.drawString(row.annotations[column].displayCharacter,
-                         (x * av.charWidth) + charOffset,
-                         y + iconOffset);
-          }
-          else if (
-              row.annotations[column - 1] == null
-              || (!row.annotations[column].displayCharacter.equals(
-                  row.annotations[column - 1].displayCharacter)
-                  ||
-                  (row.annotations[column].displayCharacter.length() < 2 &&
-                   row.annotations[column].secondaryStructure == ' ')))
-          {
-            g.drawString(row.annotations[column].displayCharacter,
-                         x * av.charWidth + charOffset,
-                         y + iconOffset);
+            if (row.annotations[column].colour == null)
+              g.setColor(Color.black);
+            else
+              g.setColor(row.annotations[column].colour);
+
+            if (column == 0 || row.graph > 0)
+            {
+              g.drawString(row.annotations[column].displayCharacter,
+                      (x * av.charWidth) + charOffset, y + iconOffset);
+            }
+            else if (row.annotations[column - 1] == null
+                    || (labelAllCols
+                            || !row.annotations[column].displayCharacter
+                                    .equals(row.annotations[column - 1].displayCharacter) || (row.annotations[column].displayCharacter
+                            .length() < 2 && row.annotations[column].secondaryStructure == ' ')))
+            {
+              g.drawString(row.annotations[column].displayCharacter, x
+                      * av.charWidth + charOffset, y + iconOffset);
+            }
+            g.setFont(ofont);
           }
         }
-
         if (row.hasIcons)
         {
-          if (!validRes ||
-              (row.annotations[column].secondaryStructure != lastSS))
+          char ss = validRes ? row.annotations[column].secondaryStructure
+                  : ' ';
+          if (ss == 'S')
+          {
+            // distinguish between forward/backward base-pairing
+            if (row.annotations[column].displayCharacter.indexOf(')') > -1)
+            {
+              ss = 's';
+            }
+          }
+          if (!validRes || (ss != lastSS))
           {
-            switch (lastSS)
+            if (x > -1)
             {
+              switch (lastSS)
+              {
               case 'H':
-                g.setColor(HELIX_COLOUR);
-                if (MAC)
-                {
-                  //Off by 1 offset when drawing rects and ovals
-                  //to offscreen image on the MAC
-                  g.fillRoundRect(lastSSX, y + 4 + iconOffset,
-                                  (x * av.charWidth) - lastSSX, 7, 8, 8);
-                  break;
-                }
-
-                int sCol = (lastSSX / av.charWidth) + startRes;
-                int x1 = lastSSX;
-                int x2 = (x * av.charWidth);
-
-                if (sCol == 0 ||
-                    row.annotations[sCol - 1] == null ||
-                    row.annotations[sCol - 1].secondaryStructure != 'H')
-                {
-                  g.fillArc(lastSSX, y + 4 + iconOffset, av.charWidth, 8, 90,
-                            180);
-                  x1 += av.charWidth / 2;
-                }
-
-                if (row.annotations[column] == null ||
-                    row.annotations[column].secondaryStructure != 'H')
-                {
-                  g.fillArc( (x * av.charWidth) - av.charWidth,
-                            y + 4 + iconOffset, av.charWidth, 8, 270, 180);
-                  x2 -= av.charWidth / 2;
-                }
-
-                g.fillRect(x1, y + 4 + iconOffset, x2 - x1, 8);
+                drawHelixAnnot(g, row, lastSSX, x, y, iconOffset, startRes,
+                        column, validRes, validEnd);
                 break;
 
               case 'E':
-                g.setColor(SHEET_COLOUR);
-                g.fillRect(lastSSX, y + 4 + iconOffset,
-                           (x * av.charWidth) - lastSSX - 4, 7);
-                g.fillPolygon(new int[]
-                              { (x * av.charWidth) - 4,
-                              (x * av.charWidth) - 4,
-                              (x * av.charWidth)},
-                              new int[]
-                              {
-                              y + iconOffset, y + 14 + iconOffset,
-                              y + 8 + iconOffset
-                }, 3);
+                drawSheetAnnot(g, row, lastSSX, x, y, iconOffset, startRes,
+                        column, validRes, validEnd);
+                break;
 
+              case 'S': // Stem case for RNA secondary structure
+              case 's': // and opposite direction
+                drawStemAnnot(g, row, lastSSX, x, y, iconOffset, startRes,
+                        column, validRes, validEnd);
                 break;
 
               default:
                 g.setColor(Color.gray);
-                g.fillRect(lastSSX, y + 6 + iconOffset,
-                           (x * av.charWidth) - lastSSX, 2);
+                g.fillRect(lastSSX, y + 6 + iconOffset, (x * av.charWidth)
+                        - lastSSX, 2);
 
                 break;
+              }
             }
-
             if (validRes)
             {
-              lastSS = row.annotations[column].secondaryStructure;
+              lastSS = ss;
             }
             else
             {
               lastSS = ' ';
             }
-
-            lastSSX = (x * av.charWidth);
+            if (x > -1)
+            {
+              lastSSX = (x * av.charWidth);
+            }
           }
         }
-
         column++;
         x++;
       }
-
       if (column >= row.annotations.length)
       {
         column = row.annotations.length - 1;
+        validEnd = false;
+      }
+      else
+      {
+        validEnd = true;
       }
 
-      //  x ++;
+      // x ++;
 
       if (row.hasIcons)
       {
         switch (lastSS)
         {
-          case 'H':
-            g.setColor(HELIX_COLOUR);
-            if (MAC)
-            {
-              //Off by 1 offset when drawing rects and ovals
-              //to offscreen image on the MAC
-              g.fillRoundRect(lastSSX, y + 4 + iconOffset,
-                              (x * av.charWidth) - lastSSX, 7, 8, 8);
-              break;
-            }
-
-            int sCol = (lastSSX / av.charWidth) + startRes;
-            int x1 = lastSSX;
-            int x2 = (x * av.charWidth);
-
-            if (sCol == 0 ||
-                row.annotations[sCol - 1] == null ||
-                row.annotations[sCol - 1].secondaryStructure != 'H')
-            {
-              g.fillArc(lastSSX, y + 4 + iconOffset, av.charWidth, 8, 90, 180);
-              x1 += av.charWidth / 2;
-            }
-
-            if (row.annotations[column] == null ||
-                row.annotations[column].secondaryStructure != 'H')
-            {
-              g.fillArc( (x * av.charWidth) - av.charWidth,
-                        y + 4 + iconOffset, av.charWidth, 8, 270,
-                        180);
-              x2 -= av.charWidth / 2;
-            }
-
-            g.fillRect(x1, y + 4 + iconOffset, x2 - x1, 8);
-
-            break;
-
-          case 'E':
-            g.setColor(SHEET_COLOUR);
-
-            if (row.annotations[endRes] == null
-                || row.annotations[endRes].secondaryStructure != 'E')
-            {
-              g.fillRect(lastSSX, y + 4 + iconOffset,
-                         (x * av.charWidth) - lastSSX - 4, 7);
-              g.fillPolygon(new int[]
-                            { (x * av.charWidth) - 4,
-                            (x * av.charWidth) - 4,
-                            (x * av.charWidth)},
-                            new int[]
-                            {
-                            y + iconOffset, y + 14 + iconOffset,
-                            y + 7 + iconOffset
-              }, 3);
-            }
-            else
-            {
-              g.fillRect(lastSSX, y + 4 + iconOffset,
-                         (x + 1) * av.charWidth - lastSSX, 7);
-            }
-            break;
-
-          default:
-            g.setColor(Color.gray);
-            g.fillRect(lastSSX, y + 6 + iconOffset,
-                       (x * av.charWidth) - lastSSX, 2);
-
-            break;
+        case 'H':
+          drawHelixAnnot(g, row, lastSSX, x, y, iconOffset, startRes,
+                  column, validRes, validEnd);
+          break;
+
+        case 'E':
+          drawSheetAnnot(g, row, lastSSX, x, y, iconOffset, startRes,
+                  column, validRes, validEnd);
+          break;
+        case 's':
+        case 'S': // Stem case for RNA secondary structure
+          drawStemAnnot(g, row, lastSSX, x, y, iconOffset, startRes,
+                  column, validRes, validEnd);
+          break;
+        default:
+          drawGlyphLine(g, row, lastSSX, x, y, iconOffset, startRes,
+                  column, validRes, validEnd);
+          break;
         }
       }
 
@@ -1091,9 +1194,8 @@ public class AnnotationPanel
             {
               if (aa[gg].graphGroup == row.graphGroup)
               {
-                drawLineGraph(g, aa[gg], startRes, endRes, y,
-                              groupmin, groupmax,
-                              row.graphHeight);
+                drawLineGraph(g, aa[gg], startRes, endRes, y, groupmin,
+                        groupmax, row.graphHeight);
               }
             }
 
@@ -1101,14 +1203,14 @@ public class AnnotationPanel
           }
           else
           {
-            drawLineGraph(g, row, startRes, endRes,
-                          y, row.graphMin, row.graphMax, row.graphHeight);
+            drawLineGraph(g, row, startRes, endRes, y, row.graphMin,
+                    row.graphMax, row.graphHeight);
           }
         }
         else if (row.graph == AlignmentAnnotation.BAR_GRAPH)
         {
-          drawBarGraph(g, row, startRes, endRes,
-                       row.graphMin, row.graphMax, y);
+          drawBarGraph(g, row, startRes, endRes, row.graphMin,
+                  row.graphMax, y);
         }
       }
 
@@ -1124,11 +1226,159 @@ public class AnnotationPanel
     }
   }
 
-  public void drawLineGraph(Graphics g, AlignmentAnnotation aa,
-                            int sRes, int eRes,
-                            int y,
-                            float min, float max,
-                            int graphHeight)
+  private void drawStemAnnot(Graphics g, AlignmentAnnotation row,
+          int lastSSX, int x, int y, int iconOffset, int startRes,
+          int column, boolean validRes, boolean validEnd)
+  {
+    g.setColor(STEM_COLOUR);
+    int sCol = (lastSSX / av.charWidth) + startRes;
+    int x1 = lastSSX;
+    int x2 = (x * av.charWidth);
+    Regex closeparen = new Regex("(\\))");
+
+    String dc = column == 0 ? ""
+            : row.annotations[column - 1].displayCharacter;
+
+    boolean diffupstream = sCol == 0 || row.annotations[sCol - 1] == null
+            || !dc.equals(row.annotations[sCol - 1].displayCharacter);
+    boolean diffdownstream = !validRes || !validEnd
+            || row.annotations[column] == null
+            || !dc.equals(row.annotations[column].displayCharacter);
+    // System.out.println("Column "+column+" diff up: "+diffupstream+" down:"+diffdownstream);
+    // If a closing base pair half of the stem, display a backward arrow
+    if (column > 0 && closeparen.search(dc))
+    {
+      if (diffupstream)
+      // if (validRes && column>1 && row.annotations[column-2]!=null &&
+      // dc.equals(row.annotations[column-2].displayCharacter))
+      {
+        g.fillPolygon(new int[]
+        { lastSSX + 5, lastSSX + 5, lastSSX }, new int[]
+        { y + iconOffset, y + 14 + iconOffset, y + 8 + iconOffset }, 3);
+        x1 += 5;
+      }
+      if (diffdownstream)
+      {
+        x2 -= 1;
+      }
+    }
+    else
+    {
+      // display a forward arrow
+      if (diffdownstream)
+      {
+        g.fillPolygon(new int[]
+        { x2 - 5, x2 - 5, x2 }, new int[]
+        { y + iconOffset, y + 14 + iconOffset, y + 8 + iconOffset }, 3);
+        x2 -= 5;
+      }
+      if (diffupstream)
+      {
+        x1 += 1;
+      }
+    }
+    // draw arrow body
+    g.fillRect(x1, y + 4 + iconOffset, x2 - x1, 7);
+  }
+
+  private void drawGlyphLine(Graphics g, AlignmentAnnotation row,
+          int lastSSX, int x, int y, int iconOffset, int startRes,
+          int column, boolean validRes, boolean validEnd)
+  {
+    g.setColor(Color.gray);
+    g
+            .fillRect(lastSSX, y + 6 + iconOffset, (x * av.charWidth)
+                    - lastSSX, 2);
+  }
+
+  private void drawSheetAnnot(Graphics g, AlignmentAnnotation row,
+          int lastSSX, int x, int y, int iconOffset, int startRes,
+          int column, boolean validRes, boolean validEnd)
+  {
+    g.setColor(SHEET_COLOUR);
+
+    if (!validEnd || !validRes || row.annotations[column] == null
+            || row.annotations[column].secondaryStructure != 'E')
+    {
+      g.fillRect(lastSSX, y + 4 + iconOffset, (x * av.charWidth) - lastSSX
+              - 4, 7);
+      g.fillPolygon(
+              new int[]
+              { (x * av.charWidth) - 4, (x * av.charWidth) - 4,
+                  (x * av.charWidth) }, new int[]
+              { y + iconOffset, y + 14 + iconOffset, y + 7 + iconOffset },
+              3);
+    }
+    else
+    {
+      g.fillRect(lastSSX, y + 4 + iconOffset, (x + 1) * av.charWidth
+              - lastSSX, 7);
+    }
+
+  }
+
+  private void drawHelixAnnot(Graphics g, AlignmentAnnotation row,
+          int lastSSX, int x, int y, int iconOffset, int startRes,
+          int column, boolean validRes, boolean validEnd)
+  {
+    g.setColor(HELIX_COLOUR);
+
+    int sCol = (lastSSX / av.charWidth) + startRes;
+    int x1 = lastSSX;
+    int x2 = (x * av.charWidth);
+
+    if (MAC)
+    {
+      int ofs = av.charWidth / 2;
+      // Off by 1 offset when drawing rects and ovals
+      // to offscreen image on the MAC
+      g.fillRoundRect(lastSSX, y + 4 + iconOffset, x2 - x1, 8, 8, 8);
+      if (sCol == 0 || row.annotations[sCol - 1] == null
+              || row.annotations[sCol - 1].secondaryStructure != 'H')
+      {
+      }
+      else
+      {
+        // g.setColor(Color.orange);
+        g.fillRoundRect(lastSSX, y + 4 + iconOffset, x2 - x1 - ofs + 1, 8,
+                0, 0);
+      }
+      if (!validRes || row.annotations[column] == null
+              || row.annotations[column].secondaryStructure != 'H')
+      {
+
+      }
+      else
+      {
+        // g.setColor(Color.magenta);
+        g.fillRoundRect(lastSSX + ofs, y + 4 + iconOffset, x2 - x1 - ofs
+                + 1, 8, 0, 0);
+
+      }
+
+      return;
+    }
+
+    if (sCol == 0 || row.annotations[sCol - 1] == null
+            || row.annotations[sCol - 1].secondaryStructure != 'H')
+    {
+      g.fillArc(lastSSX, y + 4 + iconOffset, av.charWidth, 8, 90, 180);
+      x1 += av.charWidth / 2;
+    }
+
+    if (!validRes || row.annotations[column] == null
+            || row.annotations[column].secondaryStructure != 'H')
+    {
+      g.fillArc((x * av.charWidth) - av.charWidth, y + 4 + iconOffset,
+              av.charWidth, 8, 270, 180);
+      x2 -= av.charWidth / 2;
+    }
+
+    g.fillRect(x1, y + 4 + iconOffset, x2 - x1, 8);
+  }
+
+  public void drawLineGraph(Graphics g, AlignmentAnnotation aa, int sRes,
+          int eRes, int y, float min, float max, int graphHeight)
   {
     if (sRes > aa.annotations.length)
     {
@@ -1137,7 +1387,7 @@ public class AnnotationPanel
 
     int x = 0;
 
-    //Adjustment for fastpaint to left
+    // Adjustment for fastpaint to left
     if (eRes < av.endRes)
     {
       eRes++;
@@ -1153,10 +1403,10 @@ public class AnnotationPanel
     int y1 = y, y2 = y;
     float range = max - min;
 
-    ////Draw origin
+    // //Draw origin
     if (min < 0)
     {
-      y2 = y - (int) ( (0 - min / range) * graphHeight);
+      y2 = y - (int) ((0 - min / range) * graphHeight);
     }
 
     g.setColor(Color.gray);
@@ -1180,7 +1430,8 @@ public class AnnotationPanel
         break;
       }
 
-      if (aa.annotations[column] == null || aa.annotations[column - 1] == null)
+      if (aa.annotations[column] == null
+              || aa.annotations[column - 1] == null)
       {
         x++;
         continue;
@@ -1191,13 +1442,13 @@ public class AnnotationPanel
       else
         g.setColor(aa.annotations[column].colour);
 
-      y1 = y -
-          (int) ( ( (aa.annotations[column - 1].value - min) / range) * graphHeight);
-      y2 = y -
-          (int) ( ( (aa.annotations[column].value - min) / range) * graphHeight);
+      y1 = y
+              - (int) (((aa.annotations[column - 1].value - min) / range) * graphHeight);
+      y2 = y
+              - (int) (((aa.annotations[column].value - min) / range) * graphHeight);
 
-      g.drawLine(x * av.charWidth - av.charWidth / 2, y1,
-                 x * av.charWidth + av.charWidth / 2, y2);
+      g.drawLine(x * av.charWidth - av.charWidth / 2, y1, x * av.charWidth
+              + av.charWidth / 2, y2);
       x++;
     }
 
@@ -1205,28 +1456,29 @@ public class AnnotationPanel
     {
       g.setColor(aa.threshold.colour);
       Graphics2D g2 = (Graphics2D) g;
-      g2.setStroke(new BasicStroke(1,
-                                   BasicStroke.CAP_SQUARE,
-                                   BasicStroke.JOIN_ROUND, 3f,
-                                   new float[]
-                                   {5f, 3f}, 0f));
+      g2.setStroke(new BasicStroke(1, BasicStroke.CAP_SQUARE,
+              BasicStroke.JOIN_ROUND, 3f, new float[]
+              { 5f, 3f }, 0f));
 
-      y2 = (int) (y - ( (aa.threshold.value - min) / range) * graphHeight);
+      y2 = (int) (y - ((aa.threshold.value - min) / range) * graphHeight);
       g.drawLine(0, y2, (eRes - sRes) * av.charWidth, y2);
       g2.setStroke(new BasicStroke());
     }
   }
 
-  public void drawBarGraph(Graphics g, AlignmentAnnotation aa,
-                           int sRes, int eRes,
-                           float min, float max,
-                           int y)
+  public void drawBarGraph(Graphics g, AlignmentAnnotation aa, int sRes,
+          int eRes, float min, float max, int y)
   {
+    ColourSchemeI profcolour = av.getGlobalColourScheme();
+    if (profcolour == null)
+    {
+      profcolour = new jalview.schemes.ZappoColourScheme();
+    }
     if (sRes > aa.annotations.length)
     {
       return;
     }
-
+    Font ofont = g.getFont();
     eRes = Math.min(eRes, aa.annotations.length);
 
     int x = 0, y1 = y, y2 = y;
@@ -1235,7 +1487,7 @@ public class AnnotationPanel
 
     if (min < 0)
     {
-      y2 = y - (int) ( (0 - min / (range)) * aa.graphHeight);
+      y2 = y - (int) ((0 - min / (range)) * aa.graphHeight);
     }
 
     g.setColor(Color.gray);
@@ -1244,7 +1496,21 @@ public class AnnotationPanel
 
     int column;
     int aaMax = aa.annotations.length - 1;
-
+    boolean renderHistogram = true, renderProfile = true;
+    if (aa.autoCalculated && aa.label.startsWith("Consensus"))
+    {
+      // TODO: generalise this to have render styles for consensus/profile data
+      if (aa.groupRef != null)
+      {
+        renderHistogram = aa.groupRef.isShowConsensusHistogram();
+        renderProfile = aa.groupRef.isShowSequenceLogo();
+      }
+      else
+      {
+        renderHistogram = av.isShowConsensusHistogram();
+        renderProfile = av.isShowSequenceLogo();
+      }
+    }
     while (x < eRes - sRes)
     {
       column = sRes + x;
@@ -1263,46 +1529,165 @@ public class AnnotationPanel
         x++;
         continue;
       }
-
       if (aa.annotations[column].colour == null)
         g.setColor(Color.black);
       else
         g.setColor(aa.annotations[column].colour);
 
-      y1 = y -
-          (int) ( ( (aa.annotations[column].value - min) / (range)) * aa.graphHeight);
+      y1 = y
+              - (int) (((aa.annotations[column].value - min) / (range)) * aa.graphHeight);
 
-      if (y1 - y2 > 0)
+      if (renderHistogram)
       {
-        g.fillRect(x * av.charWidth, y2, av.charWidth, y1 - y2);
+        if (y1 - y2 > 0)
+        {
+          g.fillRect(x * av.charWidth, y2, av.charWidth, y1 - y2);
+        }
+        else
+        {
+          g.fillRect(x * av.charWidth, y1, av.charWidth, y2 - y1);
+        }
       }
-      else
+      // draw profile if available
+      if (renderProfile && aa.annotations[column].value != 0)
       {
-        g.fillRect(x * av.charWidth, y1, av.charWidth, y2 - y1);
-      }
 
-      x++;
+        int profl[] = getProfileFor(aa, column);
+        // just try to draw the logo if profl is not null
+        if (profl != null)
+        {
+
+          int ht = y1, htn = y2 - y1;// aa.graphHeight;
+          float wdth;
+          double ht2 = 0;
+          char[] dc;
+
+          /**
+           * profl.length == 51 indicates that the profile of a secondary
+           * structure conservation row was accesed.
+           * Therefore dc gets length 2, to have space for a basepair instead of
+           * just a single nucleotide
+           */
+          if (profl.length == 51)
+          {
+            dc = new char[2];
+          }
+          else
+          {
+            dc = new char[1];
+          }
+
+          LineMetrics lm;
+          for (int c = 1; profl != null && c < profl[0];)
+          {
+            dc[0] = (char) profl[c++];
+
+            if (aa.label.startsWith("StrucConsensus"))
+            {
+              dc[1] = (char) profl[c++];
+            }
+            
+            wdth = av.charWidth;
+            wdth /= (float) fm.charsWidth(dc, 0, dc.length);
 
+            if (c > 2)
+            {
+              ht += (int) ht2;
+            }
+            {
+              // if (aa.annotations[column].value==0) {
+              // g.setFont(ofont.deriveFont(AffineTransform.getScaleInstance(wdth,
+              // (ht2=(aa.graphHeight*0.1/av.charHeight)))));
+              // ht = y2-(int)ht2;
+              // } else {
+              g.setFont(ofont.deriveFont(AffineTransform.getScaleInstance(
+                      wdth, (ht2 = (htn * ((double) profl[c++]) / 100.0))
+                              / av.charHeight)));
+              lm = g.getFontMetrics().getLineMetrics(dc, 0, 1, g);
+              // htn -=ht2;
+              // }
+              g.setColor(profcolour.findColour(dc[0])); // (av.globalColourScheme!=null)
+              // ? );// try to get a
+              // colourscheme for the
+              // group(aa.groupRef.cs==null)
+              // ? av.textColour2 :
+              // cs.findColour(dc));
+              // System.out.println(dc[0]);
+
+              g.drawChars(dc, 0, dc.length, x * av.charWidth,
+                      (int) (ht + lm.getHeight()));
+
+              // ht+=g.getFontMetrics().getAscent()-g.getFontMetrics().getDescent();
+            }
+          }
+          g.setFont(ofont);
+        }
+      }
+      x++;
     }
     if (aa.threshold != null)
     {
       g.setColor(aa.threshold.colour);
       Graphics2D g2 = (Graphics2D) g;
-      g2.setStroke(new BasicStroke(1,
-                                   BasicStroke.CAP_SQUARE,
-                                   BasicStroke.JOIN_ROUND, 3f,
-                                   new float[]
-                                   {5f, 3f}, 0f));
+      g2.setStroke(new BasicStroke(1, BasicStroke.CAP_SQUARE,
+              BasicStroke.JOIN_ROUND, 3f, new float[]
+              { 5f, 3f }, 0f));
 
-      y2 = (int) (y - ( (aa.threshold.value - min) / range) * aa.graphHeight);
+      y2 = (int) (y - ((aa.threshold.value - min) / range) * aa.graphHeight);
       g.drawLine(0, y2, (eRes - sRes) * av.charWidth, y2);
       g2.setStroke(new BasicStroke());
     }
   }
 
+  private int[] getProfileFor(AlignmentAnnotation aa, int column)
+  {
+    if (aa.autoCalculated && aa.label.startsWith("Consensus"))
+    {
+      if (aa.groupRef != null && aa.groupRef.consensusData != null
+              && aa.groupRef.isShowSequenceLogo())
+      {
+        return AAFrequency.extractProfile(
+                aa.groupRef.consensusData[column], aa.groupRef
+                        .getIgnoreGapsConsensus());
+      }
+      // TODO extend annotation row to enable dynamic and static profile data to
+      // be stored
+      if (aa.groupRef == null && aa.sequenceRef == null
+              && av.isShowSequenceLogo())
+      {
+        return AAFrequency.extractProfile(av.hconsensus[column], av
+                .getIgnoreGapsConsensus());
+      }
+    }
+    else
+    {
+      if (aa.autoCalculated && aa.label.startsWith("StrucConsensus"))
+      {
+        if (aa.groupRef != null && aa.groupRef.consensusData != null
+                && aa.groupRef.isShowSequenceLogo())
+        {
+          //TODO check what happens for group selections
+          return StructureFrequency.extractProfile(
+                  aa.groupRef.consensusData[column], aa.groupRef
+                          .getIgnoreGapsConsensus());
+        }
+        // TODO extend annotation row to enable dynamic and static profile data
+        // to
+        // be stored
+        if (aa.groupRef == null && aa.sequenceRef == null
+                && av.isShowSequenceLogo())
+        {
+          return StructureFrequency.extractProfile(av.hStrucConsensus[column],
+                  av.getIgnoreGapsConsensus());
+        }
+      }
+    }
+    return null;
+  }
+
   // used by overview window
-  public void drawGraph(Graphics g, AlignmentAnnotation aa, int width, int y,
-                        int sRes, int eRes)
+  public void drawGraph(Graphics g, AlignmentAnnotation aa, int width,
+          int y, int sRes, int eRes)
   {
     eRes = Math.min(eRes, aa.annotations.length);
     g.setColor(Color.white);
@@ -1320,7 +1705,7 @@ public class AnnotationPanel
         else
           g.setColor(aa.annotations[j].colour);
 
-        height = (int) ( (aa.annotations[j].value / aa.graphMax) * y);
+        height = (int) ((aa.annotations[j].value / aa.graphMax) * y);
         if (height > y)
         {
           height = y;