header updated
[jalview.git] / src / jalview / appletgui / AlignFrame.java
index d1b2da9..78c175b 100755 (executable)
@@ -1,6 +1,6 @@
 /*\r
  * Jalview - A Sequence Alignment Editor and Viewer\r
- * Copyright (C) 2005 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle\r
+ * Copyright (C) 2006 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
@@ -38,7 +38,6 @@ public class AlignFrame extends Frame implements ActionListener,
   public AlignViewport viewport;\r
   int NEW_WINDOW_WIDTH = 700;\r
   int NEW_WINDOW_HEIGHT = 500;\r
-  jalview.bin.JalviewLite applet;\r
 \r
   String jalviewServletURL;\r
 \r
@@ -58,7 +57,6 @@ public class AlignFrame extends Frame implements ActionListener,
       ex.printStackTrace();\r
     }\r
 \r
-    this.applet = applet;\r
     viewport = new AlignViewport(al, applet);\r
     alignPanel = new AlignmentPanel(this, viewport);\r
 \r
@@ -112,6 +110,8 @@ public class AlignFrame extends Frame implements ActionListener,
    this.addKeyListener(this);\r
    alignPanel.seqPanel.seqCanvas.addKeyListener(this);\r
    alignPanel.idPanel.idCanvas.addKeyListener(this);\r
+   alignPanel.scalePanel.addKeyListener(this);\r
+   alignPanel.annotationPanel.addKeyListener(this);\r
 \r
     viewport.addPropertyChangeListener(new java.beans.PropertyChangeListener()\r
     {\r
@@ -329,6 +329,40 @@ public class AlignFrame extends Frame implements ActionListener,
           findMenuItem_actionPerformed();\r
         }\r
         break;\r
+      case KeyEvent.VK_H:\r
+      {\r
+        boolean toggleSeqs = !evt.isControlDown();\r
+        boolean toggleCols = !evt.isShiftDown();\r
+        boolean hide = false;\r
+        SequenceGroup sg = viewport.getSelectionGroup();\r
+\r
+        if(toggleSeqs)\r
+        {\r
+          if (sg != null && sg.getSize(false) != viewport.alignment.getHeight())\r
+          {\r
+            hide = true;\r
+            viewport.hideAllSelectedSeqs();\r
+          }\r
+          else if (!(toggleCols && viewport.colSel.getSelected().size() > 0))\r
+            viewport.showAllHiddenSeqs();\r
+        }\r
+\r
+        if(toggleCols)\r
+        {\r
+          if (viewport.colSel.getSelected().size() > 0)\r
+          {\r
+            viewport.hideSelectedColumns();\r
+            if(!toggleSeqs)\r
+                   viewport.selectionGroup = sg;\r
+          }\r
+          else if (!hide)\r
+            viewport.showAllHiddenColumns();\r
+        }\r
+\r
+        alignPanel.repaint();\r
+        break;\r
+      }\r
+\r
     }\r
   }\r
   public void keyReleased(KeyEvent evt)\r
@@ -374,117 +408,137 @@ public void itemStateChanged(ItemEvent evt)
   }\r
  public void actionPerformed(ActionEvent evt)\r
  {\r
-    if(evt.getSource()==inputText)\r
+    Object source = evt.getSource();\r
+\r
+    if(source==inputText)\r
       inputText_actionPerformed();\r
-    else if(evt.getSource()==loadTree)\r
+    else if(source==loadTree)\r
       loadTree_actionPerformed();\r
-    else if(evt.getSource()==loadApplication)\r
+    else if(source==loadApplication)\r
       launchFullApplication();\r
-    else if(evt.getSource()==closeMenuItem)\r
+    else if(source==closeMenuItem)\r
       closeMenuItem_actionPerformed();\r
-    else if(evt.getSource()==copy)\r
+    else if(source==copy)\r
       copy_actionPerformed();\r
-    else if(evt.getSource()==undoMenuItem)\r
+    else if(source==undoMenuItem)\r
       undoMenuItem_actionPerformed();\r
-    else if(evt.getSource()==redoMenuItem)\r
+    else if(source==redoMenuItem)\r
       redoMenuItem_actionPerformed();\r
-    else if(evt.getSource()==inputText)\r
+    else if(source==inputText)\r
             inputText_actionPerformed();\r
-    else if(evt.getSource()==closeMenuItem)\r
+    else if(source==closeMenuItem)\r
             closeMenuItem_actionPerformed();\r
-    else if(evt.getSource()==undoMenuItem)\r
+    else if(source==undoMenuItem)\r
             undoMenuItem_actionPerformed();\r
-    else if(evt.getSource()==redoMenuItem)\r
+    else if(source==redoMenuItem)\r
             redoMenuItem_actionPerformed();\r
-    else if(evt.getSource()==copy)\r
+    else if(source==copy)\r
             copy_actionPerformed();\r
-    else if(evt.getSource()==pasteNew)\r
+    else if(source==pasteNew)\r
             pasteNew_actionPerformed();\r
-    else if(evt.getSource()==pasteThis)\r
+    else if(source==pasteThis)\r
             pasteThis_actionPerformed();\r
-    else if(evt.getSource()==cut)\r
+    else if(source==cut)\r
             cut_actionPerformed();\r
-    else if(evt.getSource()==delete)\r
+    else if(source==delete)\r
             delete_actionPerformed();\r
-    else if(evt.getSource()==deleteGroups)\r
+    else if(source==deleteGroups)\r
             deleteGroups_actionPerformed();\r
-    else if(evt.getSource()==selectAllSequenceMenuItem)\r
+    else if(source==selectAllSequenceMenuItem)\r
             selectAllSequenceMenuItem_actionPerformed();\r
-    else if(evt.getSource()==deselectAllSequenceMenuItem)\r
+    else if(source==deselectAllSequenceMenuItem)\r
             deselectAllSequenceMenuItem_actionPerformed();\r
-    else if(evt.getSource()==invertSequenceMenuItem)\r
+    else if(source==invertSequenceMenuItem)\r
             invertSequenceMenuItem_actionPerformed();\r
-    else if(evt.getSource()==remove2LeftMenuItem)\r
+    else if(source==invertColSel)\r
+    { viewport.invertColumnSelection(); alignPanel.repaint(); }\r
+    else if(source==remove2LeftMenuItem)\r
             remove2LeftMenuItem_actionPerformed();\r
-    else if(evt.getSource()==remove2RightMenuItem)\r
+    else if(source==remove2RightMenuItem)\r
             remove2RightMenuItem_actionPerformed();\r
-    else if(evt.getSource()==removeGappedColumnMenuItem)\r
+    else if(source==removeGappedColumnMenuItem)\r
             removeGappedColumnMenuItem_actionPerformed();\r
-    else if(evt.getSource()==removeAllGapsMenuItem)\r
+    else if(source==removeAllGapsMenuItem)\r
             removeAllGapsMenuItem_actionPerformed();\r
-    else if(evt.getSource()==findMenuItem)\r
+    else if(source==findMenuItem)\r
             findMenuItem_actionPerformed();\r
-    else if(evt.getSource()==font)\r
+    else if(source==font)\r
             font_actionPerformed();\r
-    else if(evt.getSource()==featureSettings)\r
+    else if(source==showColumns)\r
+    {\r
+      viewport.showAllHiddenColumns(); alignPanel.repaint();\r
+    }\r
+    else if(source==showSeqs)\r
+    {\r
+      viewport.showAllHiddenSeqs();\r
+    }\r
+    else if(source == hideColumns)\r
+    {\r
+      viewport.hideSelectedColumns(); alignPanel.repaint();\r
+    }\r
+    else if(source == hideSequences && viewport.getSelectionGroup()!=null)\r
+    {\r
+      viewport.hideAllSelectedSeqs();\r
+    }\r
+    else if(source==featureSettings)\r
             featureSettings_actionPerformed();\r
-    else if(evt.getSource()==overviewMenuItem)\r
+    else if(source==overviewMenuItem)\r
             overviewMenuItem_actionPerformed();\r
-    else if(evt.getSource()==noColourmenuItem)\r
+    else if(source==noColourmenuItem)\r
             noColourmenuItem_actionPerformed();\r
-    else if(evt.getSource()==clustalColour)\r
+    else if(source==clustalColour)\r
             clustalColour_actionPerformed();\r
-    else if(evt.getSource()==zappoColour)\r
+    else if(source==zappoColour)\r
             zappoColour_actionPerformed();\r
-    else if(evt.getSource()==taylorColour)\r
+    else if(source==taylorColour)\r
             taylorColour_actionPerformed();\r
-    else if(evt.getSource()==hydrophobicityColour)\r
+    else if(source==hydrophobicityColour)\r
             hydrophobicityColour_actionPerformed();\r
-    else if(evt.getSource()==helixColour)\r
+    else if(source==helixColour)\r
             helixColour_actionPerformed();\r
-    else if(evt.getSource()==strandColour)\r
+    else if(source==strandColour)\r
             strandColour_actionPerformed();\r
-    else if(evt.getSource()==turnColour)\r
+    else if(source==turnColour)\r
             turnColour_actionPerformed();\r
-    else if(evt.getSource()==buriedColour)\r
+    else if(source==buriedColour)\r
             buriedColour_actionPerformed();\r
-    else if(evt.getSource()==nucleotideColour)\r
+    else if(source==nucleotideColour)\r
             nucleotideColour_actionPerformed();\r
-    else if(evt.getSource()==modifyPID)\r
+    else if(source==modifyPID)\r
             modifyPID_actionPerformed();\r
-    else if(evt.getSource()==modifyConservation)\r
+    else if(source==modifyConservation)\r
             modifyConservation_actionPerformed();\r
-    else if(evt.getSource()==userDefinedColour)\r
+    else if(source==userDefinedColour)\r
             userDefinedColour_actionPerformed();\r
-    else if(evt.getSource()==PIDColour)\r
+    else if(source==PIDColour)\r
             PIDColour_actionPerformed();\r
-    else if(evt.getSource()==BLOSUM62Colour)\r
+    else if(source==BLOSUM62Colour)\r
             BLOSUM62Colour_actionPerformed();\r
-    else if(evt.getSource()==annotationColour)\r
+    else if(source==annotationColour)\r
            new AnnotationColourChooser(viewport, alignPanel);\r
-    else if(evt.getSource()==sortPairwiseMenuItem)\r
+    else if(source==sortPairwiseMenuItem)\r
             sortPairwiseMenuItem_actionPerformed();\r
-    else if(evt.getSource()==sortIDMenuItem)\r
+    else if(source==sortIDMenuItem)\r
             sortIDMenuItem_actionPerformed();\r
-    else if(evt.getSource()==sortGroupMenuItem)\r
+    else if(source==sortGroupMenuItem)\r
             sortGroupMenuItem_actionPerformed();\r
-    else if(evt.getSource()==removeRedundancyMenuItem)\r
+    else if(source==removeRedundancyMenuItem)\r
             removeRedundancyMenuItem_actionPerformed();\r
-    else if(evt.getSource()==pairwiseAlignmentMenuItem)\r
+    else if(source==pairwiseAlignmentMenuItem)\r
             pairwiseAlignmentMenuItem_actionPerformed();\r
-    else if(evt.getSource()==PCAMenuItem)\r
+    else if(source==PCAMenuItem)\r
             PCAMenuItem_actionPerformed();\r
-    else if(evt.getSource()==averageDistanceTreeMenuItem)\r
+    else if(source==averageDistanceTreeMenuItem)\r
             averageDistanceTreeMenuItem_actionPerformed();\r
-    else if(evt.getSource()==neighbourTreeMenuItem)\r
+    else if(source==neighbourTreeMenuItem)\r
             neighbourTreeMenuItem_actionPerformed();\r
-    else if(evt.getSource()==njTreeBlosumMenuItem)\r
+    else if(source==njTreeBlosumMenuItem)\r
             njTreeBlosumMenuItem_actionPerformed();\r
-    else if(evt.getSource()==avDistanceTreeBlosumMenuItem)\r
+    else if(source==avDistanceTreeBlosumMenuItem)\r
             avTreeBlosumMenuItem_actionPerformed();\r
-    else if(evt.getSource()==documentation)\r
+    else if(source==documentation)\r
             documentation_actionPerformed();\r
-    else if(evt.getSource()==about)\r
+    else if(source==about)\r
             about_actionPerformed();\r
 \r
  }\r
@@ -515,25 +569,31 @@ public void itemStateChanged(ItemEvent evt)
     StringBuffer url = new StringBuffer(jalviewServletURL);\r
 \r
     url.append("?open="+\r
-               appendProtocol( applet.getParameter("file") ) );\r
+               appendProtocol( viewport.applet.getParameter("file") ) );\r
 \r
-    if(applet.getParameter("features")!=null)\r
+    if(viewport.applet.getParameter("features")!=null)\r
     {\r
       url.append( "&features=" );\r
-      url.append( appendProtocol( applet.getParameter("features") ) );\r
+      url.append( appendProtocol( viewport.applet.getParameter("features") ) );\r
     }\r
 \r
-    if(applet.getParameter("defaultColour")!=null)\r
+    if(viewport.applet.getParameter("annotations")!=null)\r
+    {\r
+      url.append( "&annotations=" );\r
+      url.append( appendProtocol( viewport.applet.getParameter("annotations") ) );\r
+    }\r
+\r
+    if(viewport.applet.getParameter("defaultColour")!=null)\r
     {\r
       url.append("&colour=" +\r
-                 removeWhiteSpace(applet.getParameter("defaultColour"))\r
+                 removeWhiteSpace(viewport.applet.getParameter("defaultColour"))\r
           );\r
     }\r
 \r
-    if(applet.getParameter("userDefinedColour")!=null)\r
+    if(viewport.applet.getParameter("userDefinedColour")!=null)\r
     {\r
       url.append( "&colour=" +\r
-                 removeWhiteSpace( applet.getParameter("userDefinedColour") )\r
+                 removeWhiteSpace( viewport.applet.getParameter("userDefinedColour") )\r
          );\r
     }\r
 \r
@@ -562,7 +622,7 @@ public void itemStateChanged(ItemEvent evt)
        new URL(url);\r
     }catch(java.net.MalformedURLException ex)\r
     {\r
-      url = applet.getCodeBase()+url;\r
+      url = viewport.applet.getCodeBase()+url;\r
     }\r
     return url;\r
   }\r
@@ -570,7 +630,7 @@ public void itemStateChanged(ItemEvent evt)
   public void closeMenuItem_actionPerformed()\r
   {\r
     PaintRefresher.components.remove(viewport.alignment);\r
-    if(PaintRefresher.components.size()==0 && applet==null)\r
+    if(PaintRefresher.components.size()==0 && viewport.applet==null)\r
       System.exit(0);\r
 \r
     this.dispose();\r
@@ -609,21 +669,28 @@ public void itemStateChanged(ItemEvent evt)
   public void addHistoryItem(HistoryItem hi)\r
   {\r
     historyList.push(hi);\r
+    redoList.removeAllElements();\r
     updateEditMenuBar();\r
   }\r
 \r
   protected void undoMenuItem_actionPerformed()\r
   {\r
-    HistoryItem hi = (HistoryItem) historyList.pop();\r
-    redoList.push(new HistoryItem(hi.getDescription(), viewport.alignment,\r
+    HistoryItem nh,hi = (HistoryItem) historyList.pop();\r
+    redoList.push(nh=new HistoryItem(hi.getDescription(), viewport.alignment,\r
                                   HistoryItem.HIDE));\r
+    if (hi.alColumnChanges!=null)\r
+      nh.alColumnChanges=hi.alColumnChanges.getInverse();\r
     restoreHistoryItem(hi);\r
     viewport.firePropertyChange("alignment", null, viewport.getAlignment().getSequences());\r
   }\r
 \r
   protected void redoMenuItem_actionPerformed()\r
   {\r
-    HistoryItem hi = (HistoryItem) redoList.pop();\r
+    HistoryItem nh,hi = (HistoryItem) redoList.pop();\r
+    historyList.push(nh=new HistoryItem(hi.getDescription(), viewport.alignment,\r
+                                  HistoryItem.HIDE));\r
+    if (hi.alColumnChanges!=null)\r
+      nh.alColumnChanges=hi.alColumnChanges.getInverse();\r
     restoreHistoryItem(hi);\r
     updateEditMenuBar();\r
     viewport.firePropertyChange("alignment", null, viewport.getAlignment().getSequences());\r
@@ -632,8 +699,7 @@ public void itemStateChanged(ItemEvent evt)
   // used by undo and redo\r
   void restoreHistoryItem(HistoryItem hi)\r
   {\r
-    hi.restore();\r
-\r
+    hi.restore(viewport.getColumnSelection());\r
     updateEditMenuBar();\r
 \r
     viewport.firePropertyChange("alignment", null, viewport.getAlignment().getSequences());\r
@@ -691,7 +757,8 @@ public void itemStateChanged(ItemEvent evt)
     alignPanel.repaint();\r
   }\r
 \r
-  StringBuffer copiedSequences;\r
+  static StringBuffer copiedSequences;\r
+  static Vector copiedHiddenColumns;\r
   protected void copy_actionPerformed()\r
   {\r
     if (viewport.getSelectionGroup() == null)\r
@@ -712,6 +779,25 @@ public void itemStateChanged(ItemEvent evt)
     int index = 0, startRes, endRes;\r
     char ch;\r
 \r
+    if (viewport.hasHiddenColumns && viewport.getSelectionGroup() != null)\r
+    {\r
+      copiedHiddenColumns = new Vector();\r
+      int hiddenOffset = viewport.getSelectionGroup().getStartRes();\r
+      for (int i = 0; i < viewport.getColumnSelection().getHiddenColumns().size();\r
+           i++)\r
+      {\r
+        int[] region = (int[])\r
+            viewport.getColumnSelection().getHiddenColumns().elementAt(i);\r
+\r
+        copiedHiddenColumns.addElement(new int[]\r
+                                 {region[0] - hiddenOffset,\r
+                                 region[1] - hiddenOffset});\r
+      }\r
+    }\r
+    else\r
+      copiedHiddenColumns = null;\r
+\r
+\r
     for (int i = 0; i < sg.getSize(false); i++)\r
     {\r
         SequenceI seq = null;\r
@@ -820,9 +906,18 @@ public void itemStateChanged(ItemEvent evt)
           newtitle = newtitle.concat("- from " + getTitle());\r
         }\r
         AlignFrame af = new AlignFrame(new Alignment(newSeqs),\r
-                                       applet,\r
+                                       viewport.applet,\r
                                        newtitle,\r
                                        false);\r
+        if (copiedHiddenColumns != null)\r
+        {\r
+          for (int i = 0; i < copiedHiddenColumns.size(); i++)\r
+          {\r
+            int[] region = (int[]) copiedHiddenColumns.elementAt(i);\r
+            af.viewport.hideColumns(region[0], region[1]);\r
+          }\r
+        }\r
+\r
 \r
         jalview.bin.JalviewLite.addFrame(af, newtitle, NEW_WINDOW_WIDTH,\r
                                          NEW_WINDOW_HEIGHT);\r
@@ -954,12 +1049,13 @@ public void itemStateChanged(ItemEvent evt)
     ColumnSelection colSel = viewport.getColumnSelection();\r
     if (colSel.size() > 0)\r
     {\r
-      addHistoryItem(new HistoryItem("Remove Left", viewport.alignment,\r
+      HistoryItem edit;\r
+      addHistoryItem(edit=new HistoryItem("Remove Left", viewport.alignment,\r
                                      HistoryItem.HIDE));\r
       int min = colSel.getMin();\r
       viewport.getAlignment().trimLeft(min);\r
       colSel.compensateForEdit(0, min);\r
-\r
+      edit.addShift(0, min);\r
       if (viewport.getSelectionGroup() != null)\r
       {\r
         viewport.getSelectionGroup().adjustForRemoveLeft(min);\r
@@ -987,6 +1083,7 @@ public void itemStateChanged(ItemEvent evt)
                                      HistoryItem.HIDE));\r
       int max = colSel.getMax();\r
       viewport.getAlignment().trimRight(max);\r
+\r
       if (viewport.getSelectionGroup() != null)\r
       {\r
         viewport.getSelectionGroup().adjustForRemoveRight(max);\r
@@ -1008,7 +1105,8 @@ public void itemStateChanged(ItemEvent evt)
 \r
   public void removeGappedColumnMenuItem_actionPerformed()\r
   {\r
-    addHistoryItem(new HistoryItem("Remove Gapped Columns",\r
+    HistoryItem edit;\r
+    addHistoryItem(edit=new HistoryItem("Remove Gapped Columns",\r
                                    viewport.alignment,\r
                                    HistoryItem.HIDE));\r
 \r
@@ -1026,7 +1124,10 @@ public void itemStateChanged(ItemEvent evt)
 \r
   public void removeAllGapsMenuItem_actionPerformed()\r
   {\r
-    addHistoryItem(new HistoryItem("Remove Gaps", viewport.alignment,\r
+    // TODO: hidden regions should not be touched by removeAllGaps - a minimal number of gaps will remain in alignment segments containing uneven length subsequences\r
+    // TODO: columnSelection.compensateforedits should be called (and passed to history item)\r
+    HistoryItem editgaps;\r
+    addHistoryItem(editgaps=new HistoryItem("Remove Gaps", viewport.alignment,\r
                                    HistoryItem.HIDE));\r
 \r
     //This is to maintain viewport position on first residue\r
@@ -1035,8 +1136,6 @@ public void itemStateChanged(ItemEvent evt)
     int startRes = seq.findPosition(viewport.startRes);\r
 \r
     SequenceI current;\r
-    int jSize;\r
-\r
     Vector seqs=null;\r
 \r
     int start=0, end = viewport.alignment.getWidth();\r
@@ -1052,51 +1151,42 @@ public void itemStateChanged(ItemEvent evt)
     else\r
       seqs = viewport.alignment.getSequences();\r
 \r
+    /* Commented out regions below are partial implementation of todo above.\r
+     * divide start,end into visible chunks, and for each:\r
+     int diff=end-start+1;\r
+     int diffmax=0;\r
+     int dr[] = new int[seqs.size()];\r
+     */\r
     for (int i = 0; i < seqs.size(); i++)\r
     {\r
       current = (SequenceI) seqs.elementAt(i);\r
-      jSize = current.getLength();\r
-\r
-      // Removing a range is much quicker than removing gaps\r
-      // one by one for long sequences\r
-      int j = start;\r
-      int rangeStart=-1, rangeEnd=-1;\r
-\r
-      do\r
-      {\r
-        if (jalview.util.Comparison.isGap(current.getCharAt(j)))\r
-        {\r
-          if(rangeStart==-1)\r
-           {\r
-             rangeStart = j;\r
-             rangeEnd = j+1;\r
-           }\r
-           else\r
-           {\r
-             rangeEnd++;\r
-           }\r
-           j++;\r
-        }\r
-        else\r
-        {\r
-          if(rangeStart>-1)\r
-          {\r
-            current.deleteChars(rangeStart, rangeEnd);\r
-            j-=rangeEnd-rangeStart;\r
-            jSize-=rangeEnd-rangeStart;\r
-            rangeStart = -1;\r
-            rangeEnd = -1;\r
-          }\r
-          else\r
-            j++;\r
-        }\r
-      }\r
-      while (j < end && j < jSize);\r
-      if(rangeStart>-1)\r
-      {\r
-       current.deleteChars(rangeStart, rangeEnd);\r
-      }\r
+      //dr[i]=\r
+      current.removeGaps(start, end);\r
+      /*if (d<diff) // can only shift\r
+        diff=d;\r
+      if (diffmax<d)\r
+        diffmax=d;\r
+        */\r
     }\r
+    /* // after the end of each chunk -\r
+     * if (diff>0) {\r
+     // record shift for history.\r
+      editgaps.addShift(start, diff);\r
+      if (viewport.hasHiddenColumns && diffmax>diff) {\r
+      // pad sequence\r
+       StringBuffer gaps=new StringBuffer(diffmax);\r
+       for (int i=0,j=diffmax-diff; i<j; i++)\r
+       gaps.append(viewport.getGapCharacter());\r
+       for (int i=0, j=seqs.size(); i<j; i++) {\r
+       current = (SequenceI) seqs.elementAt(i);\r
+       if (dr[i]-diff>0) {\r
+       String sq = current.getSequence();\r
+       current.setSequence(sq.substring(0, hcend-dr[i])+gaps.substring(0, dr[i]-diff)+sq.substring());\r
+       }\r
+       }\r
+      }\r
+      }*/\r
+\r
     viewport.setStartRes(seq.findIndex(startRes)-1);\r
     viewport.firePropertyChange("alignment", null, viewport.getAlignment().getSequences());\r
   }\r
@@ -1195,6 +1285,7 @@ public void itemStateChanged(ItemEvent evt)
     alignPanel.repaint();\r
   }\r
 \r
+\r
   protected void scaleAbove_actionPerformed()\r
   {\r
     viewport.setScaleAboveWrapped(scaleAbove.getState());\r
@@ -1535,7 +1626,8 @@ public void itemStateChanged(ItemEvent evt)
 \r
   public void pairwiseAlignmentMenuItem_actionPerformed()\r
   {\r
-    if (viewport.getSelectionGroup().getSize(false) > 1)\r
+    if (viewport.getSelectionGroup()!=null\r
+        && viewport.getSelectionGroup().getSize(false) > 1)\r
     {\r
       Frame frame = new Frame();\r
       frame.add(new PairwiseAlignPanel(alignPanel));\r
@@ -1624,25 +1716,19 @@ public void itemStateChanged(ItemEvent evt)
 \r
     }\r
 \r
-    final TreePanel tp;\r
-    if (viewport.getSelectionGroup() != null &&\r
-        viewport.getSelectionGroup().getSize(false) > 3)\r
-    {\r
-      tp = new TreePanel(viewport,\r
-                         viewport.getSelectionGroup().getSequences(false),\r
-                         type,\r
-                         pwType,\r
-                         0, viewport.alignment.getWidth());\r
-    }\r
-    else\r
+    if ( (viewport.getSelectionGroup() != null &&\r
+          viewport.getSelectionGroup().getSize(false) > 1)\r
+      || (viewport.getSelectionGroup() == null\r
+          && viewport.alignment.getHeight() > 1))\r
     {\r
-      tp = new TreePanel(viewport, viewport.getAlignment().getSequences(),\r
-                         type, pwType, 0, viewport.alignment.getWidth());\r
-    }\r
+      final TreePanel tp = new TreePanel(viewport,\r
+                                         type,\r
+                                         pwType);\r
 \r
-    addTreeMenuItem(tp, title);\r
+      addTreeMenuItem(tp, title);\r
 \r
-    jalview.bin.JalviewLite.addFrame(tp, title, 600, 500);\r
+      jalview.bin.JalviewLite.addFrame(tp, title, 600, 500);\r
+    }\r
   }\r
 \r
   void loadTree_actionPerformed()\r
@@ -1658,8 +1744,9 @@ public void itemStateChanged(ItemEvent evt)
   public void loadTree(jalview.io.NewickFile tree, String treeFile)\r
   {\r
     TreePanel tp = new TreePanel(viewport,\r
-                      viewport.getAlignment().getSequences(),\r
-                      tree, "From File - ", treeFile);\r
+                                 treeFile,\r
+                                 "From File - ",\r
+                                 tree);\r
     jalview.bin.JalviewLite.addFrame(tp, treeFile, 600, 500);\r
     addTreeMenuItem(tp, treeFile);\r
   }\r
@@ -1760,7 +1847,7 @@ public void itemStateChanged(ItemEvent evt)
 \r
   public void showURL(String url, String target)\r
   {\r
-    if (applet == null)\r
+    if (viewport.applet == null)\r
     {\r
       System.out.println("Not running as applet - no browser available.");\r
     }\r
@@ -1769,7 +1856,7 @@ public void itemStateChanged(ItemEvent evt)
       try\r
       {\r
         System.out.println("Show url: "+url);\r
-        applet.getAppletContext().showDocument(new java.net.URL(url),\r
+        viewport.applet.getAppletContext().showDocument(new java.net.URL(url),\r
                                                target);\r
       }\r
       catch (Exception ex)\r
@@ -1879,12 +1966,11 @@ public void itemStateChanged(ItemEvent evt)
       MenuItem item;\r
 \r
       // dynamically fill save as menu with available formats\r
-      for (int i = 0; i < jalview.io.AppletFormatAdapter.formats.size(); i++)\r
+      for (int i = 0; i < jalview.io.AppletFormatAdapter.WRITEABLE_FORMATS.length; i++)\r
       {\r
 \r
-        item = new MenuItem( (String) jalview.io.AppletFormatAdapter.formats.\r
-                            elementAt(\r
-                                i));\r
+        item = new MenuItem( jalview.io.AppletFormatAdapter.WRITEABLE_FORMATS[i]);\r
+\r
         item.addActionListener(new java.awt.event.ActionListener()\r
         {\r
           public void actionPerformed(ActionEvent e)\r
@@ -2052,6 +2138,20 @@ public void itemStateChanged(ItemEvent evt)
     sequenceFeatures.setState(false);\r
     annotationColour.setLabel("by Annotation...");\r
     annotationColour.addActionListener(this);\r
+    invertSequenceMenuItem.setLabel("Invert Sequence Selection");\r
+    invertColSel.setLabel("Invert Column Selection");\r
+    menu1.setLabel("Show");\r
+    showColumns.setLabel("All Columns ");\r
+    showSeqs.setLabel("All Sequences");\r
+    menu2.setLabel("Hide");\r
+    hideColumns.setLabel("Selected Columns");\r
+    hideSequences.setLabel("Selected Sequences");\r
+    invertColSel.addActionListener(this);\r
+    showColumns.addActionListener(this);\r
+    showSeqs.addActionListener(this);\r
+    hideColumns.addActionListener(this);\r
+    hideSequences.addActionListener(this);\r
+\r
 \r
     alignFrameMenuBar.add(fileMenu);\r
         alignFrameMenuBar.add(editMenu);\r
@@ -2077,7 +2177,8 @@ public void itemStateChanged(ItemEvent evt)
         editMenu.add(selectAllSequenceMenuItem);\r
         editMenu.add(deselectAllSequenceMenuItem);\r
         editMenu.add(invertSequenceMenuItem);\r
-        editMenu.add(deleteGroups);\r
+    editMenu.add(invertColSel);\r
+    editMenu.add(deleteGroups);\r
         editMenu.addSeparator();\r
         editMenu.add(remove2LeftMenuItem);\r
         editMenu.add(remove2RightMenuItem);\r
@@ -2087,13 +2188,15 @@ public void itemStateChanged(ItemEvent evt)
         searchMenu.add(findMenuItem);\r
         viewMenu.add(font);\r
         viewMenu.addSeparator();\r
-    viewMenu.add(seqLimits);\r
-        viewMenu.addSeparator();\r
+    viewMenu.add(menu1);\r
+    viewMenu.add(menu2);\r
+    viewMenu.addSeparator();\r
     viewMenu.add(wrapMenuItem);\r
         viewMenu.add(scaleAbove);\r
         viewMenu.add(scaleLeft);\r
         viewMenu.add(scaleRight);\r
         viewMenu.addSeparator();\r
+    viewMenu.add(seqLimits);\r
     viewMenu.add(viewBoxesMenuItem);\r
         viewMenu.add(viewTextMenuItem);\r
         viewMenu.add(colourTextMenuItem);\r
@@ -2144,6 +2247,10 @@ public void itemStateChanged(ItemEvent evt)
         calculate.add(njTreeBlosumMenuItem);\r
         helpMenu.add(documentation);\r
         helpMenu.add(about);\r
+    menu1.add(showColumns);\r
+    menu1.add(showSeqs);\r
+    menu2.add(hideColumns);\r
+    menu2.add(hideSequences);\r
   }\r
 \r
   public void setEmbedded()\r
@@ -2196,16 +2303,16 @@ public void itemStateChanged(ItemEvent evt)
     fileMenu.remove(closeMenuItem);\r
     fileMenu.remove(3); // Seperator\r
 \r
-    applet.setLayout(new BorderLayout());\r
-    applet.add(embeddedMenu, BorderLayout.NORTH);\r
-    applet.add(statusBar, BorderLayout.SOUTH);\r
-   // applet.validate();\r
+    viewport.applet.setLayout(new BorderLayout());\r
+    viewport.applet.add(embeddedMenu, BorderLayout.NORTH);\r
+    viewport.applet.add(statusBar, BorderLayout.SOUTH);\r
+   // viewport.applet.validate();\r
 \r
-    alignPanel.setSize(applet.size().width, applet.size().height\r
+    alignPanel.setSize(viewport.applet.size().width, viewport.applet.size().height\r
                        - embeddedMenu.HEIGHT - statusBar.HEIGHT);\r
 \r
-     applet.add(alignPanel, BorderLayout.CENTER);\r
-     applet.validate();\r
+     viewport.applet.add(alignPanel, BorderLayout.CENTER);\r
+     viewport.applet.validate();\r
 \r
   }\r
 \r
@@ -2216,6 +2323,13 @@ public void itemStateChanged(ItemEvent evt)
   MenuItem featureSettings = new MenuItem();\r
   CheckboxMenuItem sequenceFeatures = new CheckboxMenuItem();\r
   MenuItem annotationColour = new MenuItem();\r
+  MenuItem invertColSel = new MenuItem();\r
+  Menu menu1 = new Menu();\r
+  MenuItem showColumns = new MenuItem();\r
+  MenuItem showSeqs = new MenuItem();\r
+  Menu menu2 = new Menu();\r
+  MenuItem hideColumns = new MenuItem();\r
+  MenuItem hideSequences = new MenuItem();\r
 \r
   public void mousePressed(MouseEvent evt)\r
   {\r