update author list in license for (JAL-826)
[jalview.git] / src / jalview / appletgui / AlignViewport.java
old mode 100755 (executable)
new mode 100644 (file)
index 8c6c7d2..4d97720
-/*\r
- * Jalview - A Sequence Alignment Editor and Viewer\r
- * Copyright (C) 2005 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle\r
- *\r
- * This program is free software; you can redistribute it and/or\r
- * modify it under the terms of the GNU General Public License\r
- * as published by the Free Software Foundation; either version 2\r
- * of the License, or (at your option) any later version.\r
- *\r
- * This program is distributed in the hope that it will be useful,\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
- * GNU General Public License for more details.\r
- *\r
- * You should have received a copy of the GNU General Public License\r
- * along with this program; if not, write to the Free Software\r
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA\r
- */\r
-\r
-package jalview.appletgui;\r
-\r
-import java.util.*;\r
-\r
-import java.awt.*;\r
-\r
-import jalview.analysis.*;\r
-import jalview.bin.*;\r
-import jalview.datamodel.*;\r
-import jalview.schemes.*;\r
-\r
-public class AlignViewport\r
-{\r
-  int startRes;\r
-  int endRes;\r
-\r
-  int startSeq;\r
-  int endSeq;\r
-\r
-  boolean showJVSuffix = true;\r
-  boolean showText = true;\r
-  boolean showColourText = false;\r
-  boolean showBoxes = true;\r
-  boolean wrapAlignment = false;\r
-  boolean renderGaps = true;\r
-  boolean showSequenceFeatures = false;\r
-  boolean showAnnotation = true;\r
-  boolean showConservation = true;\r
-  boolean showQuality = true;\r
-  boolean showConsensus = true;\r
-\r
-  boolean colourAppliesToAllGroups = true;\r
-  ColourSchemeI globalColourScheme = null;\r
-  boolean conservationColourSelected = false;\r
-  boolean abovePIDThreshold = false;\r
-\r
-  SequenceGroup selectionGroup = new SequenceGroup();\r
-\r
-  int charHeight;\r
-  int charWidth;\r
-  int wrappedWidth;\r
-\r
-  Font font = new Font("SansSerif", Font.PLAIN, 10);\r
-  AlignmentI alignment;\r
-\r
-  ColumnSelection colSel = new ColumnSelection();\r
-\r
-  int threshold;\r
-  int increment;\r
-\r
-  NJTree currentTree = null;\r
-\r
-  boolean scaleAboveWrapped = true;\r
-  boolean scaleLeftWrapped = true;\r
-  boolean scaleRightWrapped = true;\r
-\r
-  // The following vector holds the features which are\r
- // currently visible, in the correct order or rendering\r
-  Hashtable featuresDisplayed = null;\r
-\r
-\r
-  public Vector vconsensus;\r
-  AlignmentAnnotation consensus;\r
-  AlignmentAnnotation conservation;\r
-  AlignmentAnnotation quality;\r
-\r
-  public int ConsPercGaps = 25; // JBPNote : This should be a scalable property!\r
-\r
-  private java.beans.PropertyChangeSupport changeSupport = new java.beans.PropertyChangeSupport(this);\r
-\r
-  boolean ignoreGapsInConsensusCalculation = false;\r
-\r
-  public AlignViewport(AlignmentI al, JalviewLite applet)\r
-  {\r
-    setAlignment(al);\r
-    this.startRes = 0;\r
-    this.endRes = al.getWidth() - 1;\r
-    this.startSeq = 0;\r
-    this.endSeq = al.getHeight() - 1;\r
-    setFont(font);\r
-\r
-    if (applet != null)\r
-    {\r
-      String param = applet.getParameter("showFullId");\r
-      if (param != null)\r
-      {\r
-        showJVSuffix = Boolean.valueOf(param).booleanValue();\r
-      }\r
-\r
-      param = applet.getParameter("showAnnotation");\r
-      if (param != null)\r
-      {\r
-        showAnnotation = Boolean.valueOf(param).booleanValue();\r
-      }\r
-\r
-      param = applet.getParameter("showConservation");\r
-      if (param != null)\r
-      {\r
-        showConservation = Boolean.valueOf(param).booleanValue();\r
-      }\r
-\r
-      param = applet.getParameter("showQuality");\r
-      if (param != null)\r
-      {\r
-        showQuality = Boolean.valueOf(param).booleanValue();\r
-      }\r
-\r
-      param = applet.getParameter("showConsensus");\r
-      if (param != null)\r
-      {\r
-        showConsensus = Boolean.valueOf(param).booleanValue();\r
-      }\r
-    }\r
-    // We must set conservation and consensus before setting colour,\r
-    // as Blosum and Clustal require this to be done\r
-    updateConservation();\r
-    updateConsensus();\r
-\r
-    if (applet != null && applet.getParameter("defaultColour") != null)\r
-    {\r
-      globalColourScheme = ColourSchemeProperty.getColour(alignment,\r
-          applet.getParameter("defaultColour"));\r
-      if (globalColourScheme != null)\r
-      {\r
-        globalColourScheme.setConsensus(vconsensus);\r
-      }\r
-    }\r
-  }\r
-\r
-  public void showSequenceFeatures(boolean b)\r
-  {\r
-    showSequenceFeatures = b;\r
-  }\r
-\r
-\r
-  public void updateConservation()\r
-  {\r
-    if(alignment.isNucleotide())\r
-          return;\r
-\r
-    Conservation cons = new jalview.analysis.Conservation("All",\r
-        jalview.schemes.ResidueProperties.propHash, 3,\r
-        alignment.getSequences(), 0,\r
-        alignment.getWidth() - 1);\r
-    cons.calculate();\r
-    cons.verdict(false, ConsPercGaps);\r
-    cons.findQuality();\r
-    int alWidth = alignment.getWidth();\r
-    Annotation[] annotations = new Annotation[alWidth];\r
-    Annotation[] qannotations = new Annotation[alWidth];\r
-    String sequence = cons.getConsSequence().getSequence();\r
-    float minR, minG, minB, maxR, maxG, maxB;\r
-    minR = 0.3f;\r
-    minG = 0.0f;\r
-    minB = 0f;\r
-    maxR = 1.0f - minR;\r
-    maxG = 0.9f - minG;\r
-    maxB = 0f - minB; // scalable range for colouring both Conservation and Quality\r
-    float min = 0f;\r
-    float max = 11f;\r
-    float qmin = cons.qualityRange[0].floatValue();\r
-    float qmax = cons.qualityRange[1].floatValue();\r
-\r
-    for (int i = 0; i < alWidth; i++)\r
-    {\r
-      float value = 0;\r
-      try\r
-      {\r
-        value = Integer.parseInt(sequence.charAt(i) + "");\r
-      }\r
-      catch (Exception ex)\r
-      {\r
-        if (sequence.charAt(i) == '*')\r
-        {\r
-          value = 11;\r
-        }\r
-        if (sequence.charAt(i) == '+')\r
-        {\r
-          value = 10;\r
-        }\r
-      }\r
-      float vprop = value - min;\r
-      vprop /= max;\r
-\r
-      annotations[i] = new Annotation(sequence.charAt(i) + "",\r
-                                      "", ' ', value,\r
-                                      new Color(minR + maxR * vprop,\r
-                                                minG + maxG * vprop,\r
-                                                minB + maxB * vprop));\r
-      // Quality calc\r
-      value = ( (Double) cons.quality.elementAt(i)).floatValue();\r
-      vprop = value - qmin;\r
-      vprop /= qmax;\r
-      qannotations[i] = new Annotation(" ",\r
-                                       String.valueOf(value), ' ', value,\r
-                                       new\r
-                                       Color(minR + maxR * vprop,\r
-                                             minG + maxG * vprop,\r
-                                             minB + maxB * vprop));\r
-    }\r
-\r
-    if (conservation == null)\r
-    {\r
-      conservation = new AlignmentAnnotation("Conservation",\r
-                                             "Conservation of total alignment less than " +\r
-                                             ConsPercGaps + "% gaps",\r
-                                             annotations,\r
-                                             0f, // cons.qualityRange[0].floatValue(),\r
-                                             11f, // cons.qualityRange[1].floatValue()\r
-                                             AlignmentAnnotation.BAR_GRAPH);\r
-      if (showConservation)\r
-      {\r
-        alignment.addAnnotation(conservation);\r
-      }\r
-      quality = new AlignmentAnnotation("Quality",\r
-                                        "Alignment Quality based on Blosum62 scores",\r
-                                        qannotations,\r
-                                        cons.qualityRange[0].floatValue(),\r
-                                        cons.qualityRange[1].floatValue(),\r
-                                        AlignmentAnnotation.BAR_GRAPH);\r
-      if (showQuality)\r
-      {\r
-        alignment.addAnnotation(quality);\r
-      }\r
-    }\r
-    else\r
-    {\r
-      conservation.annotations = annotations;\r
-      quality.annotations = qannotations;\r
-      quality.graphMax = cons.qualityRange[1].floatValue();\r
-    }\r
-\r
-  }\r
-\r
-  public void updateConsensus()\r
-  {\r
-    Annotation[] annotations = new Annotation[alignment.getWidth()];\r
-\r
-    // this routine prevents vconsensus becoming a new object each time\r
-    // consenus is calculated. Important for speed of Blosum62\r
-    // and PID colouring of alignment\r
-    if (vconsensus == null)\r
-    {\r
-      vconsensus = alignment.getAAFrequency();\r
-    }\r
-    else\r
-    {\r
-      Vector temp = alignment.getAAFrequency();\r
-      vconsensus.removeAllElements();\r
-      Enumeration e = temp.elements();\r
-      while (e.hasMoreElements())\r
-      {\r
-        vconsensus.addElement(e.nextElement());\r
-      }\r
-    }\r
-    Hashtable hash = null;\r
-    for (int i = 0; i < alignment.getWidth(); i++)\r
-    {\r
-      hash = (Hashtable) vconsensus.elementAt(i);\r
-      float value = 0;\r
-      if(ignoreGapsInConsensusCalculation)\r
-        value = ((Float)hash.get("pid_nogaps")).floatValue();\r
-      else\r
-        value = ((Float)hash.get("pid_gaps")).floatValue();\r
-\r
-      String maxRes = hash.get("maxResidue").toString();\r
-      String mouseOver = hash.get("maxResidue") + " ";\r
-      if (maxRes.length() > 1)\r
-      {\r
-        mouseOver = "[" + maxRes + "] ";\r
-        maxRes = "+";\r
-      }\r
-\r
-\r
-      mouseOver += (int) value + "%";\r
-      annotations[i] = new Annotation(maxRes, mouseOver, ' ', value);\r
-\r
-    }\r
-\r
-    if (consensus == null)\r
-    {\r
-      consensus = new AlignmentAnnotation("Consensus",\r
-                                          "PID", annotations, 0f, 100f, AlignmentAnnotation.BAR_GRAPH);\r
-      if (showConsensus)\r
-      {\r
-        alignment.addAnnotation(consensus);\r
-      }\r
-    }\r
-    else\r
-    {\r
-      consensus.annotations = annotations;\r
-    }\r
-\r
-    if(globalColourScheme!=null)\r
-          globalColourScheme.setConsensus(vconsensus);\r
-\r
-  }\r
-\r
-  public SequenceGroup getSelectionGroup()\r
-  {\r
-    return selectionGroup;\r
-  }\r
-\r
-  public void setSelectionGroup(SequenceGroup sg)\r
-  {\r
-    selectionGroup = sg;\r
-  }\r
-\r
-  public boolean getConservationSelected()\r
-  {\r
-    return conservationColourSelected;\r
-  }\r
-\r
-  public void setConservationSelected(boolean b)\r
-  {\r
-    conservationColourSelected = b;\r
-  }\r
-\r
-  public boolean getAbovePIDThreshold()\r
-  {\r
-    return abovePIDThreshold;\r
-  }\r
-\r
-  public void setAbovePIDThreshold(boolean b)\r
-  {\r
-    abovePIDThreshold = b;\r
-  }\r
-\r
-  public int getStartRes()\r
-  {\r
-    return startRes;\r
-  }\r
-\r
-  public int getEndRes()\r
-  {\r
-    return endRes;\r
-  }\r
-\r
-  public int getStartSeq()\r
-  {\r
-    return startSeq;\r
-  }\r
-\r
-  public void setGlobalColourScheme(ColourSchemeI cs)\r
-  {\r
-    globalColourScheme = cs;\r
-  }\r
-\r
-  public ColourSchemeI getGlobalColourScheme()\r
-  {\r
-    return globalColourScheme;\r
-  }\r
-\r
-  public void setStartRes(int res)\r
-  {\r
-    this.startRes = res;\r
-  }\r
-\r
-  public void setStartSeq(int seq)\r
-  {\r
-    this.startSeq = seq;\r
-  }\r
-\r
-  public void setEndRes(int res)\r
-  {\r
-    if (res > alignment.getWidth() - 1)\r
-    {\r
-      // log.System.out.println(" Corrected res from " + res + " to maximum " + (alignment.getWidth()-1));\r
-      res = alignment.getWidth() - 1;\r
-    }\r
-    if (res < 0)\r
-    {\r
-      res = 0;\r
-    }\r
-    this.endRes = res;\r
-  }\r
-\r
-  public void setEndSeq(int seq)\r
-  {\r
-    if (seq > alignment.getHeight())\r
-    {\r
-      seq = alignment.getHeight();\r
-    }\r
-    if (seq < 0)\r
-    {\r
-      seq = 0;\r
-    }\r
-    this.endSeq = seq;\r
-  }\r
-\r
-  public int getEndSeq()\r
-  {\r
-    return endSeq;\r
-  }\r
-\r
-  public void setFont(Font f)\r
-  {\r
-    font = f;\r
-    java.awt.Frame temp = new java.awt.Frame();\r
-    temp.addNotify();\r
-    java.awt.FontMetrics fm = temp.getGraphics().getFontMetrics(font);\r
-    setCharHeight(fm.getHeight());\r
-    setCharWidth(fm.charWidth('M'));\r
-  }\r
-\r
-  public Font getFont()\r
-  {\r
-    return font;\r
-  }\r
-\r
-  public void setCharWidth(int w)\r
-  {\r
-    this.charWidth = w;\r
-  }\r
-\r
-  public int getCharWidth()\r
-  {\r
-    return charWidth;\r
-  }\r
-\r
-  public void setCharHeight(int h)\r
-  {\r
-    this.charHeight = h;\r
-  }\r
-\r
-  public int getCharHeight()\r
-  {\r
-    return charHeight;\r
-  }\r
-\r
-  public void setWrappedWidth(int w)\r
-  {\r
-    this.wrappedWidth = w;\r
-  }\r
-\r
-  public int getwrappedWidth()\r
-  {\r
-    return wrappedWidth;\r
-  }\r
-\r
-  public AlignmentI getAlignment()\r
-  {\r
-    return alignment;\r
-  }\r
-\r
-  public void setAlignment(AlignmentI align)\r
-  {\r
-    this.alignment = align;\r
-  }\r
-\r
-  public void setWrapAlignment(boolean state)\r
-  {\r
-    wrapAlignment = state;\r
-  }\r
-\r
-  public void setShowText(boolean state)\r
-  {\r
-    showText = state;\r
-  }\r
-\r
-  public void setRenderGaps(boolean state)\r
-  {\r
-    renderGaps = state;\r
-  }\r
-\r
-  public boolean getColourText()\r
-  {\r
-    return showColourText;\r
-  }\r
-\r
-  public void setColourText(boolean state)\r
-  {\r
-    showColourText = state;\r
-  }\r
-\r
-  public void setShowBoxes(boolean state)\r
-  {\r
-    showBoxes = state;\r
-  }\r
-\r
-  public boolean getWrapAlignment()\r
-  {\r
-    return wrapAlignment;\r
-  }\r
-\r
-  public boolean getShowText()\r
-  {\r
-    return showText;\r
-  }\r
-\r
-  public boolean getShowBoxes()\r
-  {\r
-    return showBoxes;\r
-  }\r
-\r
-  public char getGapCharacter()\r
-  {\r
-    return getAlignment().getGapCharacter();\r
-  }\r
-\r
-  public void setGapCharacter(char gap)\r
-  {\r
-    if (getAlignment() != null)\r
-    {\r
-      getAlignment().setGapCharacter(gap);\r
-    }\r
-  }\r
-\r
-  public void setThreshold(int thresh)\r
-  {\r
-    threshold = thresh;\r
-  }\r
-\r
-  public int getThreshold()\r
-  {\r
-    return threshold;\r
-  }\r
-\r
-  public void setIncrement(int inc)\r
-  {\r
-    increment = inc;\r
-  }\r
-\r
-  public int getIncrement()\r
-  {\r
-    return increment;\r
-  }\r
-\r
-  public int getIndex(int y)\r
-  {\r
-    int y1 = 0;\r
-    int starty = getStartSeq();\r
-    int endy = getEndSeq();\r
-\r
-    for (int i = starty; i <= endy; i++)\r
-    {\r
-      if (i < alignment.getHeight() && alignment.getSequenceAt(i) != null)\r
-      {\r
-        int y2 = y1 + getCharHeight();\r
-\r
-        if (y >= y1 && y <= y2)\r
-        {\r
-          return i;\r
-        }\r
-        y1 = y2;\r
-      }\r
-      else\r
-      {\r
-        return -1;\r
-      }\r
-    }\r
-    return -1;\r
-  }\r
-\r
-  public ColumnSelection getColumnSelection()\r
-  {\r
-    return colSel;\r
-  }\r
-\r
-  public void resetSeqLimits(int height)\r
-  {\r
-    setEndSeq(height / getCharHeight());\r
-  }\r
-\r
-  public void setCurrentTree(NJTree tree)\r
-  {\r
-    currentTree = tree;\r
-  }\r
-\r
-  public NJTree getCurrentTree()\r
-  {\r
-    return currentTree;\r
-  }\r
-\r
-  public void setColourAppliesToAllGroups(boolean b)\r
-  {\r
-    colourAppliesToAllGroups = b;\r
-  }\r
-\r
-  public boolean getColourAppliesToAllGroups()\r
-  {\r
-    return colourAppliesToAllGroups;\r
-  }\r
-\r
-  public boolean getShowJVSuffix()\r
-  {\r
-    return showJVSuffix;\r
-  }\r
-\r
-  public void setShowJVSuffix(boolean b)\r
-  {\r
-    showJVSuffix = b;\r
-  }\r
-\r
-  public boolean getShowAnnotation()\r
-  {\r
-    return showAnnotation;\r
-  }\r
-\r
-  public void setShowAnnotation(boolean b)\r
-  {\r
-    showAnnotation = b;\r
-  }\r
-\r
-  public boolean getScaleAboveWrapped()\r
-  {\r
-    return scaleAboveWrapped;\r
-  }\r
-\r
-  public boolean getScaleLeftWrapped()\r
-  {\r
-    return scaleLeftWrapped;\r
-  }\r
-\r
-  public boolean getScaleRightWrapped()\r
-  {\r
-    return scaleRightWrapped;\r
-  }\r
-\r
-  public void setScaleAboveWrapped(boolean b)\r
-  {\r
-    scaleAboveWrapped = b;\r
-  }\r
-\r
-  public void setScaleLeftWrapped(boolean b)\r
-  {\r
-    scaleLeftWrapped = b;\r
-  }\r
-\r
-  public void setScaleRightWrapped(boolean b)\r
-  {\r
-    scaleRightWrapped = b;\r
-  }\r
-\r
-  public void setIgnoreGapsConsensus(boolean b)\r
-  {\r
-    ignoreGapsInConsensusCalculation = b;\r
-    updateConsensus();\r
-    if (globalColourScheme!=null)\r
-    {\r
-      globalColourScheme.setThreshold(globalColourScheme.getThreshold(),\r
-          ignoreGapsInConsensusCalculation);\r
-\r
-    }\r
-  }\r
-\r
-  /**\r
-   * Property change listener for changes in alignment\r
-   *\r
-   * @param listener DOCUMENT ME!\r
-   */\r
-  public void addPropertyChangeListener(\r
-      java.beans.PropertyChangeListener listener)\r
-  {\r
-      changeSupport.addPropertyChangeListener(listener);\r
-  }\r
-\r
-  /**\r
-   * DOCUMENT ME!\r
-   *\r
-   * @param listener DOCUMENT ME!\r
-   */\r
-  public void removePropertyChangeListener(\r
-      java.beans.PropertyChangeListener listener)\r
-  {\r
-      changeSupport.removePropertyChangeListener(listener);\r
-  }\r
-\r
-  /**\r
-   * Property change listener for changes in alignment\r
-   *\r
-   * @param prop DOCUMENT ME!\r
-   * @param oldvalue DOCUMENT ME!\r
-   * @param newvalue DOCUMENT ME!\r
-   */\r
-  public void firePropertyChange(String prop, Object oldvalue, Object newvalue)\r
-  {\r
-      changeSupport.firePropertyChange(prop, oldvalue, newvalue);\r
-  }\r
-\r
-\r
-\r
-  public boolean getIgnoreGapsConsensus()\r
-  {\r
-    return ignoreGapsInConsensusCalculation;\r
-  }\r
-\r
-\r
-}\r
+/*
+ * 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.appletgui;
+
+import java.util.*;
+
+import java.awt.*;
+
+import jalview.analysis.*;
+import jalview.bin.*;
+import jalview.datamodel.*;
+import jalview.schemes.*;
+import jalview.structure.SelectionSource;
+import jalview.structure.StructureSelectionManager;
+import jalview.structure.VamsasSource;
+
+public class AlignViewport implements SelectionSource, VamsasSource
+{
+  int startRes;
+
+  int endRes;
+
+  int startSeq;
+
+  int endSeq;
+
+  boolean cursorMode = false;
+
+  boolean showJVSuffix = true;
+
+  boolean showText = true;
+
+  boolean showColourText = false;
+
+  boolean showBoxes = true;
+
+  boolean wrapAlignment = false;
+
+  boolean renderGaps = true;
+
+  boolean showSequenceFeatures = false;
+
+  boolean showAnnotation = true;
+
+  boolean showConservation = true;
+
+  boolean showQuality = true;
+
+  boolean showConsensus = true;
+
+  boolean upperCasebold = false;
+
+  boolean colourAppliesToAllGroups = true;
+
+  ColourSchemeI globalColourScheme = null;
+
+  boolean conservationColourSelected = false;
+
+  boolean abovePIDThreshold = false;
+
+  SequenceGroup selectionGroup;
+
+  int charHeight;
+
+  int charWidth;
+
+  int wrappedWidth;
+
+  Font font = new Font("SansSerif", Font.PLAIN, 10);
+
+  boolean validCharWidth = true;
+
+  AlignmentI alignment;
+
+  ColumnSelection colSel = new ColumnSelection();
+
+  int threshold;
+
+  int increment;
+
+  NJTree currentTree = null;
+
+  boolean scaleAboveWrapped = true;
+
+  boolean scaleLeftWrapped = true;
+
+  boolean scaleRightWrapped = true;
+
+  // The following vector holds the features which are
+  // currently visible, in the correct order or rendering
+  public Hashtable featuresDisplayed;
+
+  boolean hasHiddenColumns = false;
+
+  boolean hasHiddenRows = false;
+
+  boolean showHiddenMarkers = true;
+
+  public Hashtable[] hconsensus;
+
+  AlignmentAnnotation consensus;
+
+  AlignmentAnnotation conservation;
+
+  AlignmentAnnotation quality;
+
+  AlignmentAnnotation[] groupConsensus;
+
+  AlignmentAnnotation[] groupConservation;
+
+  boolean autocalculateConsensus = true;
+
+  public int ConsPercGaps = 25; // JBPNote : This should be a scalable property!
+
+  private java.beans.PropertyChangeSupport changeSupport = new java.beans.PropertyChangeSupport(
+          this);
+
+  boolean ignoreGapsInConsensusCalculation = false;
+
+  public jalview.bin.JalviewLite applet;
+
+  Hashtable sequenceColours;
+
+  boolean MAC = false;
+
+  Stack historyList = new Stack();
+
+  Stack redoList = new Stack();
+
+  String sequenceSetID;
+
+  Hashtable hiddenRepSequences;
+  
+  public void finalize() {
+    applet=null;
+    quality=null;
+    alignment=null;
+    colSel=null;
+  }
+
+  public AlignViewport(AlignmentI al, JalviewLite applet)
+  {
+    this.applet = applet;
+    setAlignment(al);
+    this.startRes = 0;
+    this.endRes = al.getWidth() - 1;
+    this.startSeq = 0;
+    this.endSeq = al.getHeight() - 1;
+    if (applet != null)
+    {
+      // get the width and height scaling factors if they were specified
+      String param = applet.getParameter("widthScale");
+      if (param != null)
+      {
+        try
+        {
+          widthScale = new Float(param).floatValue();
+        } catch (Exception e)
+        {
+        }
+        if (widthScale <= 1.0)
+        {
+          System.err
+                  .println("Invalid alignment character width scaling factor ("
+                          + widthScale + "). Ignoring.");
+          widthScale = 1;
+        }
+        if (applet.debug)
+        {
+          System.err
+                  .println("Alignment character width scaling factor is now "
+                          + widthScale);
+        }
+      }
+      param = applet.getParameter("heightScale");
+      if (param != null)
+      {
+        try
+        {
+          heightScale = new Float(param).floatValue();
+        } catch (Exception e)
+        {
+        }
+        if (heightScale <= 1.0)
+        {
+          System.err
+                  .println("Invalid alignment character height scaling factor ("
+                          + heightScale + "). Ignoring.");
+          heightScale = 1;
+        }
+        if (applet.debug)
+        {
+          System.err
+                  .println("Alignment character height scaling factor is now "
+                          + heightScale);
+        }
+      }
+    }
+    setFont(font);
+
+    MAC = new jalview.util.Platform().isAMac();
+
+    if (applet != null)
+    {
+      showJVSuffix = applet.getDefaultParameter("showFullId", showJVSuffix);
+
+      showAnnotation = applet.getDefaultParameter("showAnnotation", showAnnotation);
+      
+      showConservation = applet.getDefaultParameter("showConservation", showConservation);
+      
+      showQuality = applet.getDefaultParameter("showQuality", showQuality);
+
+      showConsensus = applet.getDefaultParameter("showConsensus", showConsensus);
+
+      showUnconserved = applet.getDefaultParameter("showUnconserved", showUnconserved);
+
+      String param = applet.getParameter("upperCase");
+      if (param != null)
+      {
+        if (param.equalsIgnoreCase("bold"))
+        {
+          upperCasebold = true;
+        }
+      }
+      sortByTree = applet.getDefaultParameter("sortByTree", sortByTree);
+
+      followHighlight = applet.getDefaultParameter("automaticScrolling",followHighlight);
+      followSelection = followHighlight;
+
+      showSequenceLogo = applet.getDefaultParameter("showSequenceLogo", showSequenceLogo);
+      
+      showGroupConsensus = applet.getDefaultParameter("showGroupConsensus", showGroupConsensus);
+      
+      showGroupConservation = applet.getDefaultParameter("showGroupConservation", showGroupConservation);
+        
+      showConsensusHistogram = applet.getDefaultParameter("showConsensusHistogram", showConsensusHistogram);
+      
+    }
+
+    if (applet != null)
+    {
+      String colour = applet.getParameter("defaultColour");
+
+      if (colour == null)
+      {
+        colour = applet.getParameter("userDefinedColour");
+        if (colour != null)
+        {
+          colour = "User Defined";
+        }
+      }
+
+      if (colour != null)
+      {
+        globalColourScheme = ColourSchemeProperty.getColour(alignment,
+                colour);
+        if (globalColourScheme != null)
+        {
+          globalColourScheme.setConsensus(hconsensus);
+        }
+      }
+
+      if (applet.getParameter("userDefinedColour") != null)
+      {
+        ((UserColourScheme) globalColourScheme).parseAppletParameter(applet
+                .getParameter("userDefinedColour"));
+      }
+    }
+    if (hconsensus == null)
+    {
+      if (!alignment.isNucleotide())
+      {
+        conservation = new AlignmentAnnotation("Conservation",
+                "Conservation of total alignment less than " + ConsPercGaps
+                        + "% gaps", new Annotation[1], 0f, 11f,
+                AlignmentAnnotation.BAR_GRAPH);
+        conservation.hasText = true;
+        conservation.autoCalculated = true;
+
+        if (showConservation)
+        {
+          alignment.addAnnotation(conservation);
+        }
+
+        if (showQuality)
+        {
+          quality = new AlignmentAnnotation("Quality",
+                  "Alignment Quality based on Blosum62 scores",
+                  new Annotation[1], 0f, 11f, AlignmentAnnotation.BAR_GRAPH);
+          quality.hasText = true;
+          quality.autoCalculated = true;
+
+          alignment.addAnnotation(quality);
+        }
+      }
+
+      consensus = new AlignmentAnnotation("Consensus", "PID",
+              new Annotation[1], 0f, 100f, AlignmentAnnotation.BAR_GRAPH);
+      consensus.hasText = true;
+      consensus.autoCalculated = true;
+
+      if (showConsensus)
+      {
+        alignment.addAnnotation(consensus);
+      }
+    }
+
+  }
+
+  public void showSequenceFeatures(boolean b)
+  {
+    showSequenceFeatures = b;
+  }
+
+  public boolean getShowSequenceFeatures()
+  {
+    return showSequenceFeatures;
+  }
+
+  class ConservationThread extends Thread
+  {
+    AlignmentPanel ap;
+
+    public ConservationThread(AlignmentPanel ap)
+    {
+      this.ap = ap;
+    }
+
+    public void run()
+    {
+      try
+      {
+        updatingConservation = true;
+
+        while (UPDATING_CONSERVATION)
+        {
+          try
+          {
+            if (ap != null)
+            {
+              ap.paintAlignment(false);
+            }
+            Thread.sleep(200);
+          } catch (Exception ex)
+          {
+            ex.printStackTrace();
+          }
+        }
+
+        UPDATING_CONSERVATION = true;
+
+        int alWidth = (alignment==null) ? -1 : alignment.getWidth();
+        if (alWidth < 0)
+        {
+          updatingConservation = false;
+          UPDATING_CONSERVATION = false;
+          return;
+        }
+
+        Conservation cons = new jalview.analysis.Conservation("All",
+                jalview.schemes.ResidueProperties.propHash, 3,
+                alignment.getSequences(), 0, alWidth - 1);
+
+        cons.calculate();
+        cons.verdict(false, ConsPercGaps);
+
+        if (quality != null)
+        {
+          cons.findQuality();
+        }
+
+        char[] sequence = cons.getConsSequence().getSequence();
+        float minR;
+        float minG;
+        float minB;
+        float maxR;
+        float maxG;
+        float maxB;
+        minR = 0.3f;
+        minG = 0.0f;
+        minB = 0f;
+        maxR = 1.0f - minR;
+        maxG = 0.9f - minG;
+        maxB = 0f - minB; // scalable range for colouring both Conservation and
+        // Quality
+
+        float min = 0f;
+        float max = 11f;
+        float qmin = 0f;
+        float qmax = 0f;
+
+        char c;
+
+        conservation.annotations = new Annotation[alWidth];
+
+        if (quality != null)
+        {
+          quality.graphMax = cons.qualityRange[1].floatValue();
+          quality.annotations = new Annotation[alWidth];
+          qmin = cons.qualityRange[0].floatValue();
+          qmax = cons.qualityRange[1].floatValue();
+        }
+
+        for (int i = 0; i < alWidth; i++)
+        {
+          float value = 0;
+
+          c = sequence[i];
+
+          if (Character.isDigit(c))
+          {
+            value = (int) (c - '0');
+          }
+          else if (c == '*')
+          {
+            value = 11;
+          }
+          else if (c == '+')
+          {
+            value = 10;
+          }
+          // TODO - refactor to use a graduatedColorScheme to calculate the
+          // histogram colors.
+          float vprop = value - min;
+          vprop /= max;
+          conservation.annotations[i] = new Annotation(String.valueOf(c),
+                  String.valueOf(value), ' ', value, new Color(minR
+                          + (maxR * vprop), minG + (maxG * vprop), minB
+                          + (maxB * vprop)));
+
+          // Quality calc
+          if (quality != null)
+          {
+            value = ((Double) cons.quality.elementAt(i)).floatValue();
+            vprop = value - qmin;
+            vprop /= qmax;
+            quality.annotations[i] = new Annotation(" ",
+                    String.valueOf(value), ' ', value, new Color(minR
+                            + (maxR * vprop), minG + (maxG * vprop), minB
+                            + (maxB * vprop)));
+          }
+        }
+      } catch (OutOfMemoryError error)
+      {
+        System.out.println("Out of memory calculating conservation!!");
+        conservation = null;
+        quality = null;
+        System.gc();
+      }
+
+      UPDATING_CONSERVATION = false;
+      updatingConservation = false;
+
+      if (ap != null)
+      {
+        ap.paintAlignment(true);
+      }
+
+    }
+  }
+
+  ConservationThread conservationThread;
+
+  ConsensusThread consensusThread;
+
+  boolean consUpdateNeeded = false;
+
+  static boolean UPDATING_CONSENSUS = false;
+
+  static boolean UPDATING_CONSERVATION = false;
+
+  boolean updatingConsensus = false;
+
+  boolean updatingConservation = false;
+
+  /**
+   * DOCUMENT ME!
+   */
+  public void updateConservation(final AlignmentPanel ap)
+  {
+    if (alignment.isNucleotide() || conservation == null)
+    {
+      return;
+    }
+
+    conservationThread = new ConservationThread(ap);
+    conservationThread.start();
+  }
+
+  /**
+   * DOCUMENT ME!
+   */
+  public void updateConsensus(final AlignmentPanel ap)
+  {
+    consensusThread = new ConsensusThread(ap);
+    consensusThread.start();
+  }
+
+  class ConsensusThread extends Thread
+  {
+    AlignmentPanel ap;
+
+    public ConsensusThread(AlignmentPanel ap)
+    {
+      this.ap = ap;
+    }
+
+    public void run()
+    {
+      updatingConsensus = true;
+      while (UPDATING_CONSENSUS)
+      {
+        try
+        {
+          if (ap != null)
+          {
+            ap.paintAlignment(false);
+          }
+
+          Thread.sleep(200);
+        } catch (Exception ex)
+        {
+          ex.printStackTrace();
+        }
+      }
+
+      UPDATING_CONSENSUS = true;
+
+      try
+      {
+        int aWidth = alignment==null ? -1 : alignment.getWidth();
+        if (aWidth < 0)
+        {
+          UPDATING_CONSENSUS = false;
+          updatingConsensus = false;
+          return;
+        }
+
+        consensus.annotations = null;
+        consensus.annotations = new Annotation[aWidth];
+
+        hconsensus = new Hashtable[aWidth];
+        AAFrequency.calculate(alignment.getSequencesArray(), 0,
+                alignment.getWidth(), hconsensus, true); // always calculate the
+                                                         // full profile
+        updateAnnotation(true);
+        //AAFrequency.completeConsensus(consensus, hconsensus, 0, aWidth,
+        //        ignoreGapsInConsensusCalculation,
+        //        true);
+        
+        if (globalColourScheme != null)
+        {
+          globalColourScheme.setConsensus(hconsensus);
+        }
+
+      } catch (OutOfMemoryError error)
+      {
+        alignment.deleteAnnotation(consensus);
+
+        consensus = null;
+        hconsensus = null;
+        System.out.println("Out of memory calculating consensus!!");
+        System.gc();
+      }
+      UPDATING_CONSENSUS = false;
+      updatingConsensus = false;
+
+      if (ap != null)
+      {
+        ap.paintAlignment(true);
+      }
+    }
+
+    /**
+     * update the consensus annotation from the sequence profile data using
+     * current visualization settings.
+     */
+    public void updateAnnotation()
+    {
+      updateAnnotation(false);
+    }
+
+    protected void updateAnnotation(boolean immediate)
+    {
+      // TODO: make calls thread-safe, so if another thread calls this method,
+      // it will either return or wait until one calculation is finished.
+      if (immediate
+              || (!updatingConsensus && consensus != null && hconsensus != null))
+      {
+        AAFrequency.completeConsensus(consensus, hconsensus, 0,
+                hconsensus.length, ignoreGapsInConsensusCalculation,
+                showSequenceLogo);
+      }
+    }
+  }
+
+  /**
+   * get the consensus sequence as displayed under the PID consensus annotation
+   * row.
+   * 
+   * @return consensus sequence as a new sequence object
+   */
+  public SequenceI getConsensusSeq()
+  {
+    if (consensus == null)
+    {
+      updateConsensus(null);
+    }
+    if (consensus == null)
+    {
+      return null;
+    }
+    StringBuffer seqs = new StringBuffer();
+    for (int i = 0; i < consensus.annotations.length; i++)
+    {
+      if (consensus.annotations[i] != null)
+      {
+        if (consensus.annotations[i].description.charAt(0) == '[')
+        {
+          seqs.append(consensus.annotations[i].description.charAt(1));
+        }
+        else
+        {
+          seqs.append(consensus.annotations[i].displayCharacter);
+        }
+      }
+    }
+    SequenceI sq = new Sequence("Consensus", seqs.toString());
+    sq.setDescription("Percentage Identity Consensus "
+            + ((ignoreGapsInConsensusCalculation) ? " without gaps" : ""));
+    return sq;
+  }
+
+  public SequenceGroup getSelectionGroup()
+  {
+    return selectionGroup;
+  }
+
+  public void setSelectionGroup(SequenceGroup sg)
+  {
+    selectionGroup = sg;
+  }
+
+  public boolean getConservationSelected()
+  {
+    return conservationColourSelected;
+  }
+
+  public void setConservationSelected(boolean b)
+  {
+    conservationColourSelected = b;
+  }
+
+  public boolean getAbovePIDThreshold()
+  {
+    return abovePIDThreshold;
+  }
+
+  public void setAbovePIDThreshold(boolean b)
+  {
+    abovePIDThreshold = b;
+  }
+
+  public int getStartRes()
+  {
+    return startRes;
+  }
+
+  public int getEndRes()
+  {
+    return endRes;
+  }
+
+  public int getStartSeq()
+  {
+    return startSeq;
+  }
+
+  public void setGlobalColourScheme(ColourSchemeI cs)
+  {
+    globalColourScheme = cs;
+  }
+
+  public ColourSchemeI getGlobalColourScheme()
+  {
+    return globalColourScheme;
+  }
+
+  public void setStartRes(int res)
+  {
+    this.startRes = res;
+  }
+
+  public void setStartSeq(int seq)
+  {
+    this.startSeq = seq;
+  }
+
+  public void setEndRes(int res)
+  {
+    if (res > alignment.getWidth() - 1)
+    {
+      // log.System.out.println(" Corrected res from " + res + " to maximum " +
+      // (alignment.getWidth()-1));
+      res = alignment.getWidth() - 1;
+    }
+    if (res < 0)
+    {
+      res = 0;
+    }
+    this.endRes = res;
+  }
+
+  public void setEndSeq(int seq)
+  {
+    if (seq > alignment.getHeight())
+    {
+      seq = alignment.getHeight();
+    }
+    if (seq < 0)
+    {
+      seq = 0;
+    }
+    this.endSeq = seq;
+  }
+
+  public int getEndSeq()
+  {
+    return endSeq;
+  }
+
+  java.awt.Frame nullFrame;
+
+  protected FeatureSettings featureSettings = null;
+
+  private float heightScale = 1, widthScale = 1;
+
+  public void setFont(Font f)
+  {
+    font = f;
+    if (nullFrame == null)
+    {
+      nullFrame = new java.awt.Frame();
+      nullFrame.addNotify();
+    }
+
+    java.awt.FontMetrics fm = nullFrame.getGraphics().getFontMetrics(font);
+    setCharHeight((int) (heightScale * fm.getHeight()));
+    charWidth = (int) (widthScale * fm.charWidth('M'));
+
+    if (upperCasebold)
+    {
+      Font f2 = new Font(f.getName(), Font.BOLD, f.getSize());
+      fm = nullFrame.getGraphics().getFontMetrics(f2);
+      charWidth = (int) (widthScale * (fm.stringWidth("MMMMMMMMMMM") / 10));
+    }
+  }
+
+  public Font getFont()
+  {
+    return font;
+  }
+
+  public int getCharWidth()
+  {
+    return charWidth;
+  }
+
+  public void setCharHeight(int h)
+  {
+    this.charHeight = h;
+  }
+
+  public int getCharHeight()
+  {
+    return charHeight;
+  }
+
+  public void setWrappedWidth(int w)
+  {
+    this.wrappedWidth = w;
+  }
+
+  public int getwrappedWidth()
+  {
+    return wrappedWidth;
+  }
+
+  public AlignmentI getAlignment()
+  {
+    return alignment;
+  }
+
+  public void setAlignment(AlignmentI align)
+  {
+    this.alignment = align;
+  }
+
+  public void setWrapAlignment(boolean state)
+  {
+    wrapAlignment = state;
+  }
+
+  public void setShowText(boolean state)
+  {
+    showText = state;
+  }
+
+  public void setRenderGaps(boolean state)
+  {
+    renderGaps = state;
+  }
+
+  public boolean getColourText()
+  {
+    return showColourText;
+  }
+
+  public void setColourText(boolean state)
+  {
+    showColourText = state;
+  }
+
+  public void setShowBoxes(boolean state)
+  {
+    showBoxes = state;
+  }
+
+  public boolean getWrapAlignment()
+  {
+    return wrapAlignment;
+  }
+
+  public boolean getShowText()
+  {
+    return showText;
+  }
+
+  public boolean getShowBoxes()
+  {
+    return showBoxes;
+  }
+
+  public char getGapCharacter()
+  {
+    return getAlignment().getGapCharacter();
+  }
+
+  public void setGapCharacter(char gap)
+  {
+    if (getAlignment() != null)
+    {
+      getAlignment().setGapCharacter(gap);
+    }
+  }
+
+  public void setThreshold(int thresh)
+  {
+    threshold = thresh;
+  }
+
+  public int getThreshold()
+  {
+    return threshold;
+  }
+
+  public void setIncrement(int inc)
+  {
+    increment = inc;
+  }
+
+  public int getIncrement()
+  {
+    return increment;
+  }
+
+  public void setHiddenColumns(ColumnSelection colsel)
+  {
+    this.colSel = colsel;
+    if (colSel.getHiddenColumns() != null)
+    {
+      hasHiddenColumns = true;
+    }
+  }
+
+  public ColumnSelection getColumnSelection()
+  {
+    return colSel;
+  }
+
+  public void resetSeqLimits(int height)
+  {
+    setEndSeq(height / getCharHeight());
+  }
+
+  public void setCurrentTree(NJTree tree)
+  {
+    currentTree = tree;
+  }
+
+  public NJTree getCurrentTree()
+  {
+    return currentTree;
+  }
+
+  public void setColourAppliesToAllGroups(boolean b)
+  {
+    colourAppliesToAllGroups = b;
+  }
+
+  public boolean getColourAppliesToAllGroups()
+  {
+    return colourAppliesToAllGroups;
+  }
+
+  public boolean getShowJVSuffix()
+  {
+    return showJVSuffix;
+  }
+
+  public void setShowJVSuffix(boolean b)
+  {
+    showJVSuffix = b;
+  }
+
+  public boolean getShowAnnotation()
+  {
+    return showAnnotation;
+  }
+
+  public void setShowAnnotation(boolean b)
+  {
+    showAnnotation = b;
+  }
+
+  public boolean getScaleAboveWrapped()
+  {
+    return scaleAboveWrapped;
+  }
+
+  public boolean getScaleLeftWrapped()
+  {
+    return scaleLeftWrapped;
+  }
+
+  public boolean getScaleRightWrapped()
+  {
+    return scaleRightWrapped;
+  }
+
+  public void setScaleAboveWrapped(boolean b)
+  {
+    scaleAboveWrapped = b;
+  }
+
+  public void setScaleLeftWrapped(boolean b)
+  {
+    scaleLeftWrapped = b;
+  }
+
+  public void setScaleRightWrapped(boolean b)
+  {
+    scaleRightWrapped = b;
+  }
+
+  public void setIgnoreGapsConsensus(boolean b)
+  {
+    ignoreGapsInConsensusCalculation = b;
+    updateConsensus(null);
+    if (globalColourScheme != null)
+    {
+      globalColourScheme.setThreshold(globalColourScheme.getThreshold(),
+              ignoreGapsInConsensusCalculation);
+
+    }
+  }
+
+  /**
+   * Property change listener for changes in alignment
+   * 
+   * @param listener
+   *          DOCUMENT ME!
+   */
+  public void addPropertyChangeListener(
+          java.beans.PropertyChangeListener listener)
+  {
+    changeSupport.addPropertyChangeListener(listener);
+  }
+
+  /**
+   * DOCUMENT ME!
+   * 
+   * @param listener
+   *          DOCUMENT ME!
+   */
+  public void removePropertyChangeListener(
+          java.beans.PropertyChangeListener listener)
+  {
+    changeSupport.removePropertyChangeListener(listener);
+  }
+
+  /**
+   * Property change listener for changes in alignment
+   * 
+   * @param prop
+   *          DOCUMENT ME!
+   * @param oldvalue
+   *          DOCUMENT ME!
+   * @param newvalue
+   *          DOCUMENT ME!
+   */
+  public void firePropertyChange(String prop, Object oldvalue,
+          Object newvalue)
+  {
+    changeSupport.firePropertyChange(prop, oldvalue, newvalue);
+  }
+
+  public boolean getIgnoreGapsConsensus()
+  {
+    return ignoreGapsInConsensusCalculation;
+  }
+
+  public void hideSelectedColumns()
+  {
+    if (colSel.size() < 1)
+    {
+      return;
+    }
+
+    colSel.hideSelectedColumns();
+    setSelectionGroup(null);
+
+    hasHiddenColumns = true;
+  }
+
+  public void invertColumnSelection()
+  {
+    for (int i = 0; i < alignment.getWidth(); i++)
+    {
+      if (colSel.contains(i))
+      {
+        colSel.removeElement(i);
+      }
+      else
+      {
+        if (!hasHiddenColumns || colSel.isVisible(i))
+        {
+          colSel.addElement(i);
+        }
+      }
+    }
+  }
+
+  public void hideColumns(int start, int end)
+  {
+    if (start == end)
+    {
+      colSel.hideColumns(start);
+    }
+    else
+    {
+      colSel.hideColumns(start, end);
+    }
+
+    hasHiddenColumns = true;
+  }
+
+  public void hideRepSequences(SequenceI repSequence, SequenceGroup sg)
+  {
+    int sSize = sg.getSize();
+    if (sSize < 2)
+    {
+      return;
+    }
+
+    if (hiddenRepSequences == null)
+    {
+      hiddenRepSequences = new Hashtable();
+    }
+
+    hiddenRepSequences.put(repSequence, sg);
+
+    // Hide all sequences except the repSequence
+    SequenceI[] seqs = new SequenceI[sSize - 1];
+    int index = 0;
+    for (int i = 0; i < sSize; i++)
+    {
+      if (sg.getSequenceAt(i) != repSequence)
+      {
+        if (index == sSize - 1)
+        {
+          return;
+        }
+
+        seqs[index++] = sg.getSequenceAt(i);
+      }
+    }
+
+    hideSequence(seqs);
+
+  }
+
+  public void hideAllSelectedSeqs()
+  {
+    if (selectionGroup == null || selectionGroup.getSize() < 1)
+    {
+      return;
+    }
+
+    SequenceI[] seqs = selectionGroup.getSequencesInOrder(alignment);
+
+    hideSequence(seqs);
+
+    setSelectionGroup(null);
+  }
+
+  public void hideSequence(SequenceI[] seq)
+  {
+    if (seq != null)
+    {
+      for (int i = 0; i < seq.length; i++)
+      {
+        alignment.getHiddenSequences().hideSequence(seq[i]);
+      }
+
+      hasHiddenRows = true;
+      firePropertyChange("alignment", null, alignment.getSequences());
+    }
+  }
+  public void showSequence(int index)
+  {
+    Vector tmp = alignment.getHiddenSequences().showSequence(index,
+            hiddenRepSequences);
+    if (tmp.size() > 0)
+    {
+      if (selectionGroup == null)
+      {
+        selectionGroup = new SequenceGroup();
+        selectionGroup.setEndRes(alignment.getWidth() - 1);
+      }
+
+      for (int t = 0; t < tmp.size(); t++)
+      {
+        selectionGroup.addSequence((SequenceI) tmp.elementAt(t), false);
+      }
+      firePropertyChange("alignment", null, alignment.getSequences());
+      sendSelection();
+    }
+
+    if (alignment.getHiddenSequences().getSize() < 1)
+    {
+      hasHiddenRows = false;
+    }
+  }
+  public void showColumn(int col)
+  {
+    colSel.revealHiddenColumns(col);
+    if (colSel.getHiddenColumns() == null)
+    {
+      hasHiddenColumns = false;
+    }
+  }
+
+  public void showAllHiddenColumns()
+  {
+    colSel.revealAllHiddenColumns();
+    hasHiddenColumns = false;
+  }
+
+  public void showAllHiddenSeqs()
+  {
+    if (alignment.getHiddenSequences().getSize() > 0)
+    {
+      if (selectionGroup == null)
+      {
+        selectionGroup = new SequenceGroup();
+        selectionGroup.setEndRes(alignment.getWidth() - 1);
+      }
+      Vector tmp = alignment.getHiddenSequences().showAll(
+              hiddenRepSequences);
+      for (int t = 0; t < tmp.size(); t++)
+      {
+        selectionGroup.addSequence((SequenceI) tmp.elementAt(t), false);
+      }
+      firePropertyChange("alignment", null, alignment.getSequences());
+      hasHiddenRows = false;
+      hiddenRepSequences = null;
+      sendSelection();
+    }
+  }
+
+  public int adjustForHiddenSeqs(int alignmentIndex)
+  {
+    return alignment.getHiddenSequences().adjustForHiddenSeqs(
+            alignmentIndex);
+  }
+
+  /**
+   * This method returns the a new SequenceI [] with the selection sequence and
+   * start and end points adjusted
+   * 
+   * @return String[]
+   */
+  public SequenceI[] getSelectionAsNewSequence()
+  {
+    SequenceI[] sequences;
+
+    if (selectionGroup == null)
+    {
+      sequences = alignment.getSequencesArray();
+    }
+    else
+    {
+      sequences = selectionGroup.getSelectionAsNewSequences(alignment);
+    }
+
+    return sequences;
+  }
+
+  /**
+   * get the currently selected sequence objects or all the sequences in the
+   * alignment.
+   * 
+   * @return array of references to sequence objects
+   */
+  public SequenceI[] getSequenceSelection()
+  {
+    SequenceI[] sequences = null;
+    if (selectionGroup != null)
+    {
+      sequences = selectionGroup.getSequencesInOrder(alignment);
+    }
+    if (sequences == null)
+    {
+      sequences = alignment.getSequencesArray();
+    }
+    return sequences;
+  }
+
+  /**
+   * This method returns the visible alignment as text, as seen on the GUI, ie
+   * if columns are hidden they will not be returned in the result. Use this for
+   * calculating trees, PCA, redundancy etc on views which contain hidden
+   * columns.
+   * 
+   * @return String[]
+   */
+  public jalview.datamodel.CigarArray getViewAsCigars(
+          boolean selectedRegionOnly)
+  {
+    return new jalview.datamodel.CigarArray(alignment, (hasHiddenColumns ? colSel : null), (selectedRegionOnly ? selectionGroup : null));
+  }
+
+  /**
+   * return a compact representation of the current alignment selection to pass
+   * to an analysis function
+   * 
+   * @param selectedOnly
+   *          boolean true to just return the selected view
+   * @return AlignmentView
+   */
+  jalview.datamodel.AlignmentView getAlignmentView(boolean selectedOnly)
+  {    
+    return getAlignmentView(selectedOnly, false);
+  }
+  
+  /**
+   * return a compact representation of the current alignment selection to pass
+   * to an analysis function
+   * 
+   * @param selectedOnly
+   *          boolean true to just return the selected view
+   * @param markGroups
+   *          boolean true to annotate the alignment view with groups on the alignment (and intersecting with selected region if selectedOnly is true) 
+   * @return AlignmentView
+   */
+  public jalview.datamodel.AlignmentView getAlignmentView(boolean selectedOnly, boolean markGroups)
+  {
+    return new AlignmentView(alignment, colSel, selectionGroup, hasHiddenColumns, selectedOnly, markGroups);
+  }
+  /**
+   * This method returns the visible alignment as text, as seen on the GUI, ie
+   * if columns are hidden they will not be returned in the result. Use this for
+   * calculating trees, PCA, redundancy etc on views which contain hidden
+   * columns.
+   * 
+   * @return String[]
+   */
+  public String[] getViewAsString(boolean selectedRegionOnly)
+  {
+    String[] selection = null;
+    SequenceI[] seqs = null;
+    int i, iSize;
+    int start = 0, end = 0;
+    if (selectedRegionOnly && selectionGroup != null)
+    {
+      iSize = selectionGroup.getSize();
+      seqs = selectionGroup.getSequencesInOrder(alignment);
+      start = selectionGroup.getStartRes();
+      end = selectionGroup.getEndRes() + 1;
+    }
+    else
+    {
+      iSize = alignment.getHeight();
+      seqs = alignment.getSequencesArray();
+      end = alignment.getWidth();
+    }
+
+    selection = new String[iSize];
+
+    for (i = 0; i < iSize; i++)
+    {
+      if (hasHiddenColumns)
+      {
+        StringBuffer visibleSeq = new StringBuffer();
+        Vector regions = colSel.getHiddenColumns();
+
+        int blockStart = start, blockEnd = end;
+        int[] region;
+        int hideStart, hideEnd;
+
+        for (int j = 0; j < regions.size(); j++)
+        {
+          region = (int[]) regions.elementAt(j);
+          hideStart = region[0];
+          hideEnd = region[1];
+
+          if (hideStart < start)
+          {
+            continue;
+          }
+
+          blockStart = Math.min(blockStart, hideEnd + 1);
+          blockEnd = Math.min(blockEnd, hideStart);
+
+          if (blockStart > blockEnd)
+          {
+            break;
+          }
+
+          visibleSeq.append(seqs[i].getSequence(blockStart, blockEnd));
+
+          blockStart = hideEnd + 1;
+          blockEnd = end;
+        }
+
+        if (end > blockStart)
+        {
+          visibleSeq.append(seqs[i].getSequence(blockStart, end));
+        }
+
+        selection[i] = visibleSeq.toString();
+      }
+      else
+      {
+        selection[i] = seqs[i].getSequenceAsString(start, end);
+      }
+    }
+
+    return selection;
+  }
+
+  public boolean getShowHiddenMarkers()
+  {
+    return showHiddenMarkers;
+  }
+
+  public void setShowHiddenMarkers(boolean show)
+  {
+    showHiddenMarkers = show;
+  }
+
+  public Color getSequenceColour(SequenceI seq)
+  {
+    if (sequenceColours == null || !sequenceColours.containsKey(seq))
+    {
+      return Color.white;
+    }
+    else
+    {
+      return (Color) sequenceColours.get(seq);
+    }
+  }
+
+  public void setSequenceColour(SequenceI seq, Color col)
+  {
+    if (sequenceColours == null)
+    {
+      sequenceColours = new Hashtable();
+    }
+
+    if (col == null)
+    {
+      sequenceColours.remove(seq);
+    }
+    else
+    {
+      sequenceColours.put(seq, col);
+    }
+  }
+
+  public String getSequenceSetId()
+  {
+    if (sequenceSetID == null)
+    {
+      sequenceSetID = alignment.hashCode() + "";
+    }
+
+    return sequenceSetID;
+  }
+  /**
+   * unique viewId for synchronizing state (e.g. with stored Jalview Project)
+   * 
+   */
+  private String viewId = null;
+
+  public String getViewId()
+  {
+    if (viewId == null)
+    {
+      viewId = this.getSequenceSetId() + "." + this.hashCode() + "";
+    }
+    return viewId;
+  }
+
+  public void alignmentChanged(AlignmentPanel ap)
+  {
+    alignment.padGaps();
+
+    if (hconsensus != null && autocalculateConsensus)
+    {
+      updateConsensus(ap);
+      updateConservation(ap);
+    }
+
+    // Reset endRes of groups if beyond alignment width
+    int alWidth = alignment.getWidth();
+    Vector groups = alignment.getGroups();
+    if (groups != null)
+    {
+      for (int i = 0; i < groups.size(); i++)
+      {
+        SequenceGroup sg = (SequenceGroup) groups.elementAt(i);
+        if (sg.getEndRes() > alWidth)
+        {
+          sg.setEndRes(alWidth - 1);
+        }
+      }
+    }
+
+    if (selectionGroup != null && selectionGroup.getEndRes() > alWidth)
+    {
+      selectionGroup.setEndRes(alWidth - 1);
+    }
+
+    resetAllColourSchemes();
+
+    // AW alignment.adjustSequenceAnnotations();
+  }
+
+  void resetAllColourSchemes()
+  {
+    ColourSchemeI cs = globalColourScheme;
+    if (cs != null)
+    {
+      if (cs instanceof ClustalxColourScheme)
+      {
+        ((ClustalxColourScheme) cs).resetClustalX(alignment.getSequences(),
+                alignment.getWidth());
+      }
+
+      cs.setConsensus(hconsensus);
+      if (cs.conservationApplied())
+      {
+        Alignment al = (Alignment) alignment;
+        Conservation c = new Conservation("All",
+                ResidueProperties.propHash, 3, al.getSequences(), 0,
+                al.getWidth() - 1);
+        c.calculate();
+        c.verdict(false, ConsPercGaps);
+
+        cs.setConservation(c);
+      }
+    }
+
+    int s, sSize = alignment.getGroups().size();
+    for (s = 0; s < sSize; s++)
+    {
+      SequenceGroup sg = (SequenceGroup) alignment.getGroups().elementAt(s);
+      if (sg.cs != null && sg.cs instanceof ClustalxColourScheme)
+      {
+        ((ClustalxColourScheme) sg.cs).resetClustalX(
+                sg.getSequences(hiddenRepSequences), sg.getWidth());
+      }
+      sg.recalcConservation();
+    }
+  }
+
+  boolean centreColumnLabels;
+
+  public boolean getCentreColumnLabels()
+  {
+    return centreColumnLabels;
+  }
+
+  public void updateSequenceIdColours()
+  {
+    Vector groups = alignment.getGroups();
+    for (int ig = 0, igSize = groups.size(); ig < igSize; ig++)
+    {
+      SequenceGroup sg = (SequenceGroup) groups.elementAt(ig);
+      if (sg.idColour != null)
+      {
+        Vector sqs = sg.getSequences(hiddenRepSequences);
+        for (int s = 0, sSize = sqs.size(); s < sSize; s++)
+        {
+          this.setSequenceColour((SequenceI) sqs.elementAt(s), sg.idColour);
+        }
+      }
+    }
+  }
+
+  public boolean followHighlight = true;
+
+  public boolean getFollowHighlight()
+  {
+    return followHighlight;
+  }
+
+  public boolean followSelection = true;
+
+  /**
+   * @return true if view selection should always follow the selections
+   *         broadcast by other selection sources
+   */
+  public boolean getFollowSelection()
+  {
+    return followSelection;
+  }
+
+  private long sgrouphash = -1, colselhash = -1;
+
+  /**
+   * checks current SelectionGroup against record of last hash value, and
+   * updates record.
+   * 
+   * @return true if SelectionGroup changed since last call
+   */
+  boolean isSelectionGroupChanged()
+  {
+    int hc = (selectionGroup == null) ? -1 : selectionGroup.hashCode();
+    if (hc != sgrouphash)
+    {
+      sgrouphash = hc;
+      return true;
+    }
+    return false;
+  }
+
+  /**
+   * checks current colsel against record of last hash value, and updates
+   * record.
+   * 
+   * @return true if colsel changed since last call
+   */
+  boolean isColSelChanged()
+  {
+    int hc = (colSel == null) ? -1 : colSel.hashCode();
+    if (hc != colselhash)
+    {
+      colselhash = hc;
+      return true;
+    }
+    return false;
+  }
+  public void sendSelection()
+  {
+    jalview.structure.StructureSelectionManager
+            .getStructureSelectionManager(applet).sendSelection(
+                    new SequenceGroup(getSelectionGroup()),
+                    new ColumnSelection(getColumnSelection()), this);
+  }
+
+
+
+
+  /**
+   * show non-conserved residues only
+   */
+  public boolean showUnconserved = false;
+
+  /**
+   * when set, alignment should be reordered according to a newly opened tree
+   */
+  public boolean sortByTree = false;
+
+  /**
+   * @return the showUnconserved
+   */
+  public boolean getShowunconserved()
+  {
+    return showUnconserved;
+  }
+
+  /**
+   * @param showNonconserved
+   *          the showUnconserved to set
+   */
+  public void setShowunconserved(boolean displayNonconserved)
+  {
+    this.showUnconserved = displayNonconserved;
+  }
+
+  /**
+   * should conservation rows be shown for groups
+   */
+  boolean showGroupConservation = false;
+
+  /**
+   * should consensus rows be shown for groups
+   */
+  boolean showGroupConsensus = false;
+
+  /**
+   * should consensus profile be rendered by default
+   */
+  public boolean showSequenceLogo = false;
+
+  /**
+   * should consensus histograms be rendered by default
+   */
+  public boolean showConsensusHistogram = true;
+
+  /**
+   * @return the showConsensusProfile
+   */
+  public boolean isShowSequenceLogo()
+  {
+    return showSequenceLogo;
+  }
+
+  /**
+   * @param showSequenceLogo
+   *          the new value
+   */
+  public void setShowSequenceLogo(boolean showSequenceLogo)
+  {
+    if (showSequenceLogo != this.showSequenceLogo)
+    {
+      // TODO: decouple settings setting from calculation when refactoring
+      // annotation update method from alignframe to viewport
+      this.showSequenceLogo = showSequenceLogo;
+      if (consensusThread != null)
+      {
+        consensusThread.updateAnnotation();
+      }
+    }
+    this.showSequenceLogo = showSequenceLogo;
+  }
+
+  /**
+   * @param showConsensusHistogram
+   *          the showConsensusHistogram to set
+   */
+  public void setShowConsensusHistogram(boolean showConsensusHistogram)
+  {
+    this.showConsensusHistogram = showConsensusHistogram;
+  }
+
+  /**
+   * @return the showGroupConservation
+   */
+  public boolean isShowGroupConservation()
+  {
+    return showGroupConservation;
+  }
+
+  /**
+   * @param showGroupConservation
+   *          the showGroupConservation to set
+   */
+  public void setShowGroupConservation(boolean showGroupConservation)
+  {
+    this.showGroupConservation = showGroupConservation;
+  }
+
+  /**
+   * @return the showGroupConsensus
+   */
+  public boolean isShowGroupConsensus()
+  {
+    return showGroupConsensus;
+  }
+
+  /**
+   * @param showGroupConsensus
+   *          the showGroupConsensus to set
+   */
+  public void setShowGroupConsensus(boolean showGroupConsensus)
+  {
+    this.showGroupConsensus = showGroupConsensus;
+  }
+
+  /**
+   * 
+   * @return flag to indicate if the consensus histogram should be rendered by
+   *         default
+   */
+  public boolean isShowConsensusHistogram()
+  {
+    return this.showConsensusHistogram;
+  }
+
+  /**
+   * synthesize a column selection if none exists so it covers the given
+   * selection group. if wholewidth is false, no column selection is made if the
+   * selection group covers the whole alignment width.
+   * 
+   * @param sg
+   * @param wholewidth
+   */
+  public void expandColSelection(SequenceGroup sg, boolean wholewidth)
+  {
+    int sgs, sge;
+    if (sg != null
+            && (sgs = sg.getStartRes()) >= 0
+            && sg.getStartRes() <= (sge = sg.getEndRes())
+            && (colSel == null || colSel.getSelected() == null || colSel
+                    .getSelected().size() == 0))
+    {
+      if (!wholewidth && alignment.getWidth() == (1 + sge - sgs))
+      {
+        // do nothing
+        return;
+      }
+      if (colSel == null)
+      {
+        colSel = new ColumnSelection();
+      }
+      for (int cspos = sg.getStartRes(); cspos <= sg.getEndRes(); cspos++)
+      {
+        colSel.addElement(cspos);
+      }
+    }
+  }
+}