JAL-1503 update version in GPL header
[jalview.git] / src / jalview / gui / AnnotationLabels.java
index 8050490..2178e37 100755 (executable)
@@ -1,33 +1,36 @@
 /*
- * Jalview - A Sequence Alignment Editor and Viewer (Version 2.4)
- * Copyright (C) 2008 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
+ * Jalview - A Sequence Alignment Editor and Viewer (Version 2.8.1)
+ * Copyright (C) 2014 The Jalview Authors
  * 
- * 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 file is part of Jalview.
  * 
- * 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.
+ * 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 this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ * 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.gui;
 
 import java.util.*;
+import java.util.regex.Pattern;
 
 import java.awt.*;
 import java.awt.datatransfer.*;
 import java.awt.event.*;
+import java.awt.geom.AffineTransform;
 import java.awt.image.*;
 import javax.swing.*;
 
 import jalview.datamodel.*;
 import jalview.io.*;
+import jalview.util.MessageManager;
 
 /**
  * DOCUMENT ME!
@@ -38,6 +41,8 @@ import jalview.io.*;
 public class AnnotationLabels extends JPanel implements MouseListener,
         MouseMotionListener, ActionListener
 {
+  static String TOGGLE_LABELSCALE = "Scale Label to Column";
+
   static String ADDNEW = "Add New Row";
 
   static String EDITNAME = "Edit Label/Description";
@@ -72,11 +77,13 @@ public class AnnotationLabels extends JPanel implements MouseListener,
 
   Font font = new Font("Arial", Font.PLAIN, 11);
 
+  private boolean hasHiddenRows;
+
   /**
    * Creates a new AnnotationLabels object.
    * 
    * @param ap
-   *                DOCUMENT ME!
+   *          DOCUMENT ME!
    */
   public AnnotationLabels(AlignmentPanel ap)
   {
@@ -101,8 +108,8 @@ public class AnnotationLabels extends JPanel implements MouseListener,
     {
     }
 
-    BufferedImage bi = new BufferedImage(temp.getHeight(this), temp
-            .getWidth(this), BufferedImage.TYPE_INT_RGB);
+    BufferedImage bi = new BufferedImage(temp.getHeight(this),
+            temp.getWidth(this), BufferedImage.TYPE_INT_RGB);
     Graphics2D g = (Graphics2D) bi.getGraphics();
     g.rotate(Math.toRadians(90));
     g.drawImage(temp, 0, -bi.getWidth(this), this);
@@ -110,6 +117,7 @@ public class AnnotationLabels extends JPanel implements MouseListener,
 
     addMouseListener(this);
     addMouseMotionListener(this);
+    addMouseWheelListener(ap.annotationPanel);
   }
 
   public AnnotationLabels(AlignViewport av)
@@ -121,7 +129,7 @@ public class AnnotationLabels extends JPanel implements MouseListener,
    * DOCUMENT ME!
    * 
    * @param y
-   *                DOCUMENT ME!
+   *          DOCUMENT ME!
    */
   public void setScrollOffset(int y)
   {
@@ -129,15 +137,24 @@ public class AnnotationLabels extends JPanel implements MouseListener,
     repaint();
   }
 
+  /**
+   * sets selectedRow to -2 if no annotation preset, -1 if no visible row is at
+   * y
+   * 
+   * @param y
+   *          coordinate position to search for a row
+   */
   void getSelectedRow(int y)
   {
     int height = 0;
-    AlignmentAnnotation[] aa = ap.av.alignment.getAlignmentAnnotation();
-
+    AlignmentAnnotation[] aa = ap.av.getAlignment()
+            .getAlignmentAnnotation();
+    selectedRow = -2;
     if (aa != null)
     {
       for (int i = 0; i < aa.length; i++)
       {
+        selectedRow = -1;
         if (!aa[i].visible)
         {
           continue;
@@ -159,24 +176,25 @@ public class AnnotationLabels extends JPanel implements MouseListener,
    * DOCUMENT ME!
    * 
    * @param evt
-   *                DOCUMENT ME!
+   *          DOCUMENT ME!
    */
   public void actionPerformed(ActionEvent evt)
   {
-    AlignmentAnnotation[] aa = ap.av.alignment.getAlignmentAnnotation();
+    AlignmentAnnotation[] aa = ap.av.getAlignment()
+            .getAlignmentAnnotation();
 
     if (evt.getActionCommand().equals(ADDNEW))
     {
       AlignmentAnnotation newAnnotation = new AlignmentAnnotation(null,
-              null, new Annotation[ap.av.alignment.getWidth()]);
+              null, new Annotation[ap.av.getAlignment().getWidth()]);
 
       if (!editLabelDescription(newAnnotation))
       {
         return;
       }
 
-      ap.av.alignment.addAnnotation(newAnnotation);
-      ap.av.alignment.setAnnotationIndex(newAnnotation, 0);
+      ap.av.getAlignment().addAnnotation(newAnnotation);
+      ap.av.getAlignment().setAnnotationIndex(newAnnotation, 0);
     }
     else if (evt.getActionCommand().equals(EDITNAME))
     {
@@ -186,15 +204,10 @@ public class AnnotationLabels extends JPanel implements MouseListener,
     else if (evt.getActionCommand().equals(HIDE))
     {
       aa[selectedRow].visible = false;
-
-      if (aa[selectedRow].label.equals("Quality"))
-      {
-        ap.av.quality = null;
-      }
     }
     else if (evt.getActionCommand().equals(DELETE))
     {
-      ap.av.alignment.deleteAnnotation(aa[selectedRow]);
+      ap.av.getAlignment().deleteAnnotation(aa[selectedRow]);
     }
     else if (evt.getActionCommand().equals(SHOWALL))
     {
@@ -214,30 +227,45 @@ public class AnnotationLabels extends JPanel implements MouseListener,
     }
     else if (evt.getActionCommand().equals(COPYCONS_SEQ))
     {
-      SequenceI cons = av.getConsensusSeq();
+      SequenceI cons = null;
+      if (aa[selectedRow].groupRef != null)
+      {
+        cons = aa[selectedRow].groupRef.getConsensusSeq();
+      }
+      else
+      {
+        cons = av.getConsensusSeq();
+      }
       if (cons != null)
       {
         copy_annotseqtoclipboard(cons);
       }
 
     }
+    else if (evt.getActionCommand().equals(TOGGLE_LABELSCALE))
+    {
+      aa[selectedRow].scaleColLabel = !aa[selectedRow].scaleColLabel;
+    }
 
-    ap.annotationPanel.adjustPanelHeight();
-    ap.annotationScroller.validate();
-    ap.paintAlignment(true);
+    ap.validateAnnotationDimensions(false);
+    ap.addNotify();
+    ap.repaint();
+    // validate();
+    // ap.paintAlignment(true);
   }
 
   /**
    * DOCUMENT ME!
    * 
    * @param e
-   *                DOCUMENT ME!
+   *          DOCUMENT ME!
    */
   boolean editLabelDescription(AlignmentAnnotation annotation)
   {
     EditNameDialog dialog = new EditNameDialog(annotation.label,
             annotation.description, "       Annotation Name ",
-            "Annotation Description ", "Edit Annotation Name/Description");
+            "Annotation Description ", "Edit Annotation Name/Description",
+            ap.alignFrame);
 
     if (!dialog.accept)
     {
@@ -260,7 +288,7 @@ public class AnnotationLabels extends JPanel implements MouseListener,
    * DOCUMENT ME!
    * 
    * @param evt
-   *                DOCUMENT ME!
+   *          DOCUMENT ME!
    */
   public void mousePressed(MouseEvent evt)
   {
@@ -272,7 +300,7 @@ public class AnnotationLabels extends JPanel implements MouseListener,
    * DOCUMENT ME!
    * 
    * @param evt
-   *                DOCUMENT ME!
+   *          DOCUMENT ME!
    */
   public void mouseReleased(MouseEvent evt)
   {
@@ -283,12 +311,17 @@ public class AnnotationLabels extends JPanel implements MouseListener,
     if (start != end)
     {
       // Swap these annotations
-      AlignmentAnnotation startAA = ap.av.alignment
+      AlignmentAnnotation startAA = ap.av.getAlignment()
               .getAlignmentAnnotation()[start];
-      AlignmentAnnotation endAA = ap.av.alignment.getAlignmentAnnotation()[end];
+      if (end == -1)
+      {
+        end = ap.av.getAlignment().getAlignmentAnnotation().length - 1;
+      }
+      AlignmentAnnotation endAA = ap.av.getAlignment()
+              .getAlignmentAnnotation()[end];
 
-      ap.av.alignment.getAlignmentAnnotation()[end] = startAA;
-      ap.av.alignment.getAlignmentAnnotation()[start] = endAA;
+      ap.av.getAlignment().getAlignmentAnnotation()[end] = startAA;
+      ap.av.getAlignment().getAlignmentAnnotation()[start] = endAA;
     }
 
     resizePanel = false;
@@ -301,7 +334,7 @@ public class AnnotationLabels extends JPanel implements MouseListener,
    * DOCUMENT ME!
    * 
    * @param evt
-   *                DOCUMENT ME!
+   *          DOCUMENT ME!
    */
   public void mouseEntered(MouseEvent evt)
   {
@@ -316,7 +349,7 @@ public class AnnotationLabels extends JPanel implements MouseListener,
    * DOCUMENT ME!
    * 
    * @param evt
-   *                DOCUMENT ME!
+   *          DOCUMENT ME!
    */
   public void mouseExited(MouseEvent evt)
   {
@@ -331,7 +364,7 @@ public class AnnotationLabels extends JPanel implements MouseListener,
    * DOCUMENT ME!
    * 
    * @param evt
-   *                DOCUMENT ME!
+   *          DOCUMENT ME!
    */
   public void mouseDragged(MouseEvent evt)
   {
@@ -367,7 +400,7 @@ public class AnnotationLabels extends JPanel implements MouseListener,
    * DOCUMENT ME!
    * 
    * @param evt
-   *                DOCUMENT ME!
+   *          DOCUMENT ME!
    */
   public void mouseMoved(MouseEvent evt)
   {
@@ -376,25 +409,57 @@ public class AnnotationLabels extends JPanel implements MouseListener,
     getSelectedRow(evt.getY() - scrollOffset);
 
     if (selectedRow > -1
-            && ap.av.alignment.getAlignmentAnnotation().length > selectedRow)
+            && ap.av.getAlignment().getAlignmentAnnotation().length > selectedRow)
     {
-      AlignmentAnnotation aa = ap.av.alignment.getAlignmentAnnotation()[selectedRow];
-
-      StringBuffer desc = new StringBuffer("<html>");
+      AlignmentAnnotation aa = ap.av.getAlignment()
+              .getAlignmentAnnotation()[selectedRow];
 
+      StringBuffer desc = new StringBuffer();
       if (aa.description != null
               && !aa.description.equals("New description"))
       {
-        desc.append(aa.getDescription(true));
-        if (aa.hasScore)
-          desc.append("<br>");
+        // TODO: we could refactor and merge this code with the code in
+        // jalview.gui.SeqPanel.mouseMoved(..) that formats sequence feature
+        // tooltips
+        desc.append(aa.getDescription(true).trim());
+        // check to see if the description is an html fragment.
+        if (desc.length() < 6
+                || (desc.substring(0, 6).toLowerCase().indexOf("<html>") < 0))
+        {
+          // clean the description ready for embedding in html
+          desc = new StringBuffer(Pattern.compile("<").matcher(desc)
+                  .replaceAll("&lt;"));
+          desc.insert(0, "<html>");
+        }
+        else
+        {
+          // remove terminating html if any
+          int i = desc.substring(desc.length() - 7).toLowerCase()
+                  .lastIndexOf("</html>");
+          if (i > -1)
+          {
+            desc.setLength(desc.length() - 7 + i);
+          }
+        }
+        if (aa.hasScore())
+        {
+          desc.append("<br/>");
+        }
+
+      }
+      else
+      {
+        // begin the tooltip's html fragment
+        desc.append("<html>");
       }
       if (aa.hasScore())
       {
-        desc.append("Score: " + aa.score);
+        // TODO: limit precision of score to avoid noise from imprecise doubles
+        // (64.7 becomes 64.7+/some tiny value).
+        desc.append(" Score: " + aa.score);
       }
 
-      if (desc.length() != 6)
+      if (desc.length() > 6)
       {
         desc.append("</html>");
         this.setToolTipText(desc.toString());
@@ -409,31 +474,79 @@ public class AnnotationLabels extends JPanel implements MouseListener,
    * DOCUMENT ME!
    * 
    * @param evt
-   *                DOCUMENT ME!
+   *          DOCUMENT ME!
    */
   public void mouseClicked(MouseEvent evt)
   {
+    AlignmentAnnotation[] aa = ap.av.getAlignment()
+            .getAlignmentAnnotation();
+    if (SwingUtilities.isLeftMouseButton(evt))
+    {
+      if (selectedRow > -1 && selectedRow < aa.length)
+      {
+        if (aa[selectedRow].groupRef != null)
+        {
+          if (evt.getClickCount() >= 2)
+          {
+            // todo: make the ap scroll to the selection - not necessary, first
+            // click highlights/scrolls, second selects
+            ap.seqPanel.ap.idPanel.highlightSearchResults(null);
+            ap.av.setSelectionGroup(// new SequenceGroup(
+            aa[selectedRow].groupRef); // );
+            ap.paintAlignment(false);
+            PaintRefresher.Refresh(ap, ap.av.getSequenceSetId());
+            ap.av.sendSelection();
+          }
+          else
+          {
+            ap.seqPanel.ap.idPanel
+                    .highlightSearchResults(aa[selectedRow].groupRef
+                            .getSequences(null));
+          }
+          return;
+        }
+        else if (aa[selectedRow].sequenceRef != null)
+        {
+          Vector sr = new Vector();
+          sr.addElement(aa[selectedRow].sequenceRef);
+          if (evt.getClickCount() == 1)
+          {
+            ap.seqPanel.ap.idPanel.highlightSearchResults(sr);
+          }
+          else if (evt.getClickCount() >= 2)
+          {
+            ap.seqPanel.ap.idPanel.highlightSearchResults(null);
+            SequenceGroup sg = new SequenceGroup();
+            sg.addSequence(aa[selectedRow].sequenceRef, false);
+            ap.av.setSelectionGroup(sg);
+            ap.av.sendSelection();
+            ap.paintAlignment(false);
+            PaintRefresher.Refresh(ap, ap.av.getSequenceSetId());
+          }
+
+        }
+      }
+    }
     if (!SwingUtilities.isRightMouseButton(evt))
     {
       return;
     }
 
-    AlignmentAnnotation[] aa = ap.av.alignment.getAlignmentAnnotation();
-
-    JPopupMenu pop = new JPopupMenu("Annotations");
+    JPopupMenu pop = new JPopupMenu(MessageManager.getString("label.annotations"));
     JMenuItem item = new JMenuItem(ADDNEW);
     item.addActionListener(this);
-
-    if ((aa == null) || (aa.length == 0))
+    pop.add(item);
+    if (selectedRow < 0)
     {
-      item = new JMenuItem(SHOWALL);
-      item.addActionListener(this);
-      pop.add(item);
+      if (hasHiddenRows)
+      { // let the user make everything visible again
+        item = new JMenuItem(SHOWALL);
+        item.addActionListener(this);
+        pop.add(item);
+      }
       pop.show(this, evt.getX(), evt.getY());
       return;
     }
-
-    pop.add(item);
     item = new JMenuItem(EDITNAME);
     item.addActionListener(this);
     pop.add(item);
@@ -443,31 +556,189 @@ public class AnnotationLabels extends JPanel implements MouseListener,
     item = new JMenuItem(DELETE);
     item.addActionListener(this);
     pop.add(item);
-    item = new JMenuItem(SHOWALL);
-    item.addActionListener(this);
-    pop.add(item);
+    if (hasHiddenRows)
+    {
+      item = new JMenuItem(SHOWALL);
+      item.addActionListener(this);
+      pop.add(item);
+    }
     item = new JMenuItem(OUTPUT_TEXT);
     item.addActionListener(this);
     pop.add(item);
-    // annotation object should be typed
-    if (selectedRow < aa.length && aa[selectedRow] == ap.av.consensus)
+    // TODO: annotation object should be typed for autocalculated/derived
+    // property methods
+    if (selectedRow < aa.length)
     {
-      pop.addSeparator();
-      final JCheckBoxMenuItem cbmi = new JCheckBoxMenuItem(
-              "Ignore Gaps In Consensus", ap.av.getIgnoreGapsConsensus());
-      cbmi.addActionListener(new ActionListener()
+      if (!aa[selectedRow].autoCalculated)
       {
-        public void actionPerformed(ActionEvent e)
+        if (aa[selectedRow].graph == AlignmentAnnotation.NO_GRAPH)
         {
-          ap.av.setIgnoreGapsConsensus(cbmi.getState(), ap);
+          // display formatting settings for this row.
+          pop.addSeparator();
+          // av and sequencegroup need to implement same interface for
+          item = new JCheckBoxMenuItem(TOGGLE_LABELSCALE,
+                  aa[selectedRow].scaleColLabel);
+          item.addActionListener(this);
+          pop.add(item);
         }
-      });
-      pop.add(cbmi);
-      final JMenuItem consclipbrd = new JMenuItem(COPYCONS_SEQ);
-      consclipbrd.addActionListener(this);
-      pop.add(consclipbrd);
-    }
+      }
+      else if (aa[selectedRow].label.indexOf("Consensus") > -1)
+      {
+        pop.addSeparator();
+        // av and sequencegroup need to implement same interface for
+        final JCheckBoxMenuItem cbmi = new JCheckBoxMenuItem(
+                "Ignore Gaps In Consensus",
+                (aa[selectedRow].groupRef != null) ? aa[selectedRow].groupRef
+                        .getIgnoreGapsConsensus() : ap.av
+                        .getIgnoreGapsConsensus());
+        final AlignmentAnnotation aaa = aa[selectedRow];
+        cbmi.addActionListener(new ActionListener()
+        {
+          public void actionPerformed(ActionEvent e)
+          {
+            if (aaa.groupRef != null)
+            {
+              // TODO: pass on reference to ap so the view can be updated.
+              aaa.groupRef.setIgnoreGapsConsensus(cbmi.getState());
+              ap.annotationPanel.paint(ap.annotationPanel.getGraphics());
+            }
+            else
+            {
+              ap.av.setIgnoreGapsConsensus(cbmi.getState(), ap);
+            }
+          }
+        });
+        pop.add(cbmi);
+        // av and sequencegroup need to implement same interface for
+        if (aaa.groupRef != null)
+        {
+          final JCheckBoxMenuItem chist = new JCheckBoxMenuItem(
+                  "Show Group Histogram",
+                  aa[selectedRow].groupRef.isShowConsensusHistogram());
+          chist.addActionListener(new ActionListener()
+          {
+            public void actionPerformed(ActionEvent e)
+            {
+              // TODO: pass on reference
+              // to ap
+              // so the
+              // view
+              // can be
+              // updated.
+              aaa.groupRef.setShowConsensusHistogram(chist.getState());
+              ap.repaint();
+              // ap.annotationPanel.paint(ap.annotationPanel.getGraphics());
+            }
+          });
+          pop.add(chist);
+          final JCheckBoxMenuItem cprofl = new JCheckBoxMenuItem(
+                  "Show Group Logo",
+                  aa[selectedRow].groupRef.isShowSequenceLogo());
+          cprofl.addActionListener(new ActionListener()
+          {
+            public void actionPerformed(ActionEvent e)
+            {
+              // TODO: pass on reference
+              // to ap
+              // so the
+              // view
+              // can be
+              // updated.
+              aaa.groupRef.setshowSequenceLogo(cprofl.getState());
+              ap.repaint();
+              // ap.annotationPanel.paint(ap.annotationPanel.getGraphics());
+            }
+          });
+          pop.add(cprofl);
+          final JCheckBoxMenuItem cproflnorm = new JCheckBoxMenuItem(
+                  "Normalise Group Logo",
+                  aa[selectedRow].groupRef.isNormaliseSequenceLogo());
+          cproflnorm.addActionListener(new ActionListener()
+          {
+            public void actionPerformed(ActionEvent e)
+            {
 
+              // TODO: pass on reference
+              // to ap
+              // so the
+              // view
+              // can be
+              // updated.
+              aaa.groupRef.setNormaliseSequenceLogo(cproflnorm.getState());
+              // automatically enable logo display if we're clicked
+              aaa.groupRef.setshowSequenceLogo(true);
+              ap.repaint();
+              // ap.annotationPanel.paint(ap.annotationPanel.getGraphics());
+            }
+          });
+          pop.add(cproflnorm);
+        }
+        else
+        {
+          final JCheckBoxMenuItem chist = new JCheckBoxMenuItem(
+                  "Show Histogram", av.isShowConsensusHistogram());
+          chist.addActionListener(new ActionListener()
+          {
+            public void actionPerformed(ActionEvent e)
+            {
+              // TODO: pass on reference
+              // to ap
+              // so the
+              // view
+              // can be
+              // updated.
+              av.setShowConsensusHistogram(chist.getState());
+              ap.alignFrame.setMenusForViewport();
+              ap.repaint();
+              // ap.annotationPanel.paint(ap.annotationPanel.getGraphics());
+            }
+          });
+          pop.add(chist);
+          final JCheckBoxMenuItem cprof = new JCheckBoxMenuItem(
+                  "Show Logo", av.isShowSequenceLogo());
+          cprof.addActionListener(new ActionListener()
+          {
+            public void actionPerformed(ActionEvent e)
+            {
+              // TODO: pass on reference
+              // to ap
+              // so the
+              // view
+              // can be
+              // updated.
+              av.setShowSequenceLogo(cprof.getState());
+              ap.alignFrame.setMenusForViewport();
+              ap.repaint();
+              // ap.annotationPanel.paint(ap.annotationPanel.getGraphics());
+            }
+          });
+          pop.add(cprof);
+          final JCheckBoxMenuItem cprofnorm = new JCheckBoxMenuItem(
+                  "Normalise Logo", av.isNormaliseSequenceLogo());
+          cprofnorm.addActionListener(new ActionListener()
+          {
+            public void actionPerformed(ActionEvent e)
+            {
+              // TODO: pass on reference
+              // to ap
+              // so the
+              // view
+              // can be
+              // updated.
+              av.setShowSequenceLogo(true);
+              av.setNormaliseSequenceLogo(cprofnorm.getState());
+              ap.alignFrame.setMenusForViewport();
+              ap.repaint();
+              // ap.annotationPanel.paint(ap.annotationPanel.getGraphics());
+            }
+          });
+          pop.add(cprofnorm);
+        }
+        final JMenuItem consclipbrd = new JMenuItem(COPYCONS_SEQ);
+        consclipbrd.addActionListener(this);
+        pop.add(consclipbrd);
+      }
+    }
     pop.show(this, evt.getX(), evt.getY());
   }
 
@@ -475,7 +746,7 @@ public class AnnotationLabels extends JPanel implements MouseListener,
    * do a single sequence copy to jalview and the system clipboard
    * 
    * @param sq
-   *                sequence to be copied to clipboard
+   *          sequence to be copied to clipboard
    */
   protected void copy_annotseqtoclipboard(SequenceI sq)
   {
@@ -493,7 +764,7 @@ public class AnnotationLabels extends JPanel implements MouseListener,
       sq.setDatasetSequence(dseqs[0]);
     }
     Alignment ds = new Alignment(dseqs);
-    if (av.hasHiddenColumns)
+    if (av.hasHiddenColumns())
     {
       omitHidden = av.getColumnSelection().getVisibleSequenceStrings(0,
               sq.getLength(), seqs);
@@ -502,11 +773,11 @@ public class AnnotationLabels extends JPanel implements MouseListener,
     String output = new FormatAdapter().formatSequences("Fasta", seqs,
             omitHidden);
 
-    Toolkit.getDefaultToolkit().getSystemClipboard().setContents(
-            new StringSelection(output), Desktop.instance);
+    Toolkit.getDefaultToolkit().getSystemClipboard()
+            .setContents(new StringSelection(output), Desktop.instance);
 
     Vector hiddenColumns = null;
-    if (av.hasHiddenColumns)
+    if (av.hasHiddenColumns())
     {
       hiddenColumns = new Vector();
       for (int i = 0; i < av.getColumnSelection().getHiddenColumns().size(); i++)
@@ -521,7 +792,7 @@ public class AnnotationLabels extends JPanel implements MouseListener,
 
     Desktop.jalviewClipboard = new Object[]
     { seqs, ds, // what is the dataset of a consensus sequence ? need to flag
-                // sequence as special.
+        // sequence as special.
         hiddenColumns };
   }
 
@@ -529,7 +800,7 @@ public class AnnotationLabels extends JPanel implements MouseListener,
    * DOCUMENT ME!
    * 
    * @param g1
-   *                DOCUMENT ME!
+   *          DOCUMENT ME!
    */
   public void paintComponent(Graphics g)
   {
@@ -547,18 +818,32 @@ public class AnnotationLabels extends JPanel implements MouseListener,
               RenderingHints.VALUE_ANTIALIAS_ON);
     }
 
-    drawComponent(g2, width);
+    drawComponent(g2, true, width);
 
   }
 
   /**
-   * DOCUMENT ME!
+   * Draw the full set of annotation Labels for the alignment at the given cursor
    * 
-   * @param g
-   *                DOCUMENT ME!
+   * @param g Graphics2D instance (needed for font scaling)
+   * @param width Width for scaling labels
+   *          
    */
   public void drawComponent(Graphics g, int width)
   {
+    drawComponent(g, false, width);
+  }
+
+  private final boolean debugRedraw = false;
+  /**
+   * Draw the full set of annotation Labels for the alignment at the given cursor
+   * 
+   * @param g Graphics2D instance (needed for font scaling)
+   * @param clip - true indicates that only current visible area needs to be rendered
+   * @param width Width for scaling labels         
+   */
+  public void drawComponent(Graphics g, boolean clip, int width)
+  {
     if (av.getFont().getSize() < 10)
     {
       g.setFont(font);
@@ -574,26 +859,64 @@ public class AnnotationLabels extends JPanel implements MouseListener,
 
     g.translate(0, scrollOffset);
     g.setColor(Color.black);
-
-    AlignmentAnnotation[] aa = av.alignment.getAlignmentAnnotation();
+    
+    AlignmentAnnotation[] aa = av.getAlignment().getAlignmentAnnotation();
     int fontHeight = g.getFont().getSize();
     int y = 0;
     int x = 0;
     int graphExtras = 0;
     int offset = 0;
-
+    Font baseFont = g.getFont();
+    FontMetrics baseMetrics = fm;
+    int ofontH = fontHeight;
+    int sOffset=0;
+    int visHeight = 0;
+    int[] visr = (ap!=null && ap.annotationPanel!=null) ? ap.annotationPanel.getVisibleVRange() : null;
+    if (clip && visr!=null){ 
+      sOffset = visr[0]; 
+      visHeight = visr[1];
+    }
+    boolean visible = true,before=false,after=false;
     if (aa != null)
     {
+      hasHiddenRows = false;
+      int olY=0;
       for (int i = 0; i < aa.length; i++)
       {
-        g.setColor(Color.black);
-
+        visible = true;
         if (!aa[i].visible)
         {
+          hasHiddenRows = true;
           continue;
         }
-
+        olY=y;
         y += aa[i].height;
+        if (clip) {if (y<sOffset)
+        {
+          if (!before)
+          {
+            if (debugRedraw) {
+              System.out.println("before vis: "+i);
+            }
+          before=true;
+          }
+          // don't draw what isn't visible
+          continue;
+        }
+        if (olY>visHeight)
+        {
+
+          if (!after)
+          {
+            if (debugRedraw) {
+              System.out.println("Scroll offset: "+sOffset+" after vis: "+i);
+            }
+          after=true;
+          }
+          // don't draw what isn't visible
+          continue;
+        }}
+        g.setColor(Color.black);
 
         offset = -aa[i].height / 2;
 
@@ -610,6 +933,7 @@ public class AnnotationLabels extends JPanel implements MouseListener,
         if (aa[i].graphGroup > -1)
         {
           int groupSize = 0;
+          // TODO: JAL-1291 revise rendering model so the graphGroup map is computed efficiently for all visible labels
           for (int gg = 0; gg < aa.length; gg++)
           {
             if (aa[gg].graphGroup == aa[i].graphGroup)
@@ -617,30 +941,55 @@ public class AnnotationLabels extends JPanel implements MouseListener,
               groupSize++;
             }
           }
-
           if (groupSize * (fontHeight + 8) < aa[i].height)
           {
             graphExtras = (aa[i].height - (groupSize * (fontHeight + 8))) / 2;
           }
-
-          for (int gg = 0; gg < aa.length; gg++)
+          else
           {
-            if (aa[gg].graphGroup == aa[i].graphGroup)
+            // scale font to fit
+            float h = aa[i].height / (float) groupSize, s;
+            if (h < 9)
             {
-              x = width - fm.stringWidth(aa[gg].label) - 3;
-              g.drawString(aa[gg].label, x, y - graphExtras);
-              if (aa[gg].annotations[0] != null)
+              visible = false;
+            }
+            else
+            {
+              fontHeight = -8 + (int) h;
+              s = ((float) fontHeight) / (float) ofontH;
+              Font f = baseFont.deriveFont(AffineTransform
+                      .getScaleInstance(s, s));
+              g.setFont(f);
+              fm = g.getFontMetrics();
+              graphExtras = (aa[i].height - (groupSize * (fontHeight + 8))) / 2;
+            }
+          }
+          if (visible)
+          {
+            for (int gg = 0; gg < aa.length; gg++)
+            {
+              if (aa[gg].graphGroup == aa[i].graphGroup)
               {
-                g.setColor(aa[gg].annotations[0].colour);
-              }
+                x = width - fm.stringWidth(aa[gg].label) - 3;
+                g.drawString(aa[gg].label, x, y - graphExtras);
 
-              g.drawLine(x, y - graphExtras - 3, x
-                      + fm.stringWidth(aa[gg].label), y - graphExtras - 3);
+                if (aa[gg]._linecolour != null)
+                {
 
-              g.setColor(Color.black);
-              graphExtras += fontHeight + 8;
+                  g.setColor(aa[gg]._linecolour);
+                  g.drawLine(x, y - graphExtras + 3,
+                          x + fm.stringWidth(aa[gg].label), y - graphExtras
+                                  + 3);
+                }
+
+                g.setColor(Color.black);
+                graphExtras += fontHeight + 8;
+              }
             }
           }
+          g.setFont(baseFont);
+          fm = baseMetrics;
+          fontHeight = ofontH;
         }
         else
         {
@@ -656,15 +1005,14 @@ public class AnnotationLabels extends JPanel implements MouseListener,
     else if (dragEvent != null && aa != null)
     {
       g.setColor(Color.lightGray);
-      g.drawString(aa[selectedRow].label, dragEvent.getX(), dragEvent
-              .getY()
-              - scrollOffset);
+      g.drawString(aa[selectedRow].label, dragEvent.getX(),
+              dragEvent.getY() - scrollOffset);
     }
 
-    if ((aa == null) || (aa.length < 1))
+    if (!av.wrapAlignment && ((aa == null) || (aa.length < 1)))
     {
-      g.drawString("Right click", 2, 8);
-      g.drawString("to add annotation", 2, 18);
+      g.drawString(MessageManager.getString("label.right_click"), 2, 8);
+      g.drawString(MessageManager.getString("label.to_add_annotation"), 2, 18);
     }
   }
 }