Check if colos are null
[jalview.git] / src / jalview / gui / SeqPanel.java
index ebcbc76..b48861a 100755 (executable)
@@ -4,29 +4,33 @@ import java.awt.*;
 import java.awt.event.*;\r
 import jalview.datamodel.*;\r
 import javax.swing.*;\r
+import java.util.*;\r
 import jalview.schemes.*;\r
-import jalview.analysis.*;\r
-\r
+import jalview.analysis.Conservation;\r
 \r
 public class SeqPanel extends JPanel\r
 {\r
 \r
   public    SeqCanvas         seqCanvas;\r
-  public    AlignmentPanel    parent;\r
+  public    AlignmentPanel    ap;\r
 \r
-  protected int startres;\r
   protected int lastres;\r
-  protected int endres;\r
-\r
   protected int startseq;\r
-  protected int padseq;\r
+  int startEdit=-1;\r
+  int endEdit=-1;\r
 \r
-  public    boolean editFlag;\r
   protected AlignViewport av;\r
 \r
   // if character is inserted or deleted, we will need to recalculate the conservation\r
   int seqEditOccurred = -1;\r
 \r
+  ScrollThread scrollThread = null;\r
+  boolean mouseDragging = false;\r
+\r
+  boolean editingSeqs = false;\r
+  boolean groupEditing = false;\r
+\r
+\r
   public SeqPanel(AlignViewport avp, AlignmentPanel p) {\r
     this.av         = avp;\r
 \r
@@ -34,18 +38,24 @@ public class SeqPanel extends JPanel
     setLayout(new BorderLayout());\r
     add(seqCanvas, BorderLayout.CENTER);\r
 \r
-    parent = p;\r
+    ap = p;\r
 \r
     addMouseMotionListener( new MouseMotionAdapter()\r
     {\r
       public void mouseMoved(MouseEvent evt)\r
-      {  doMouseMoved(evt);   }\r
+      {\r
+       if(av.getWrapAlignment())\r
+         return;\r
+        doMouseMoved(evt);    }\r
+\r
       public void mouseDragged(MouseEvent evt)\r
       {\r
-        if(av.groupDefiningMode)\r
-          doMouseDraggedDefineMode(evt);\r
-        else\r
+        if(av.getWrapAlignment())\r
+         return;\r
+        if( editingSeqs )\r
           doMouseDragged(evt);\r
+        else\r
+          doMouseDraggedDefineMode(evt);\r
       }\r
     });\r
 \r
@@ -53,17 +63,41 @@ public class SeqPanel extends JPanel
     {\r
       public void mouseReleased(MouseEvent evt)\r
       {\r
-        if(av.groupDefiningMode)\r
-          doMouseReleasedDefineMode(evt);\r
-        else\r
+        if(av.getWrapAlignment())\r
+         return;\r
+        if(editingSeqs)\r
           doMouseReleased(evt);\r
+        else\r
+          doMouseReleasedDefineMode(evt);\r
+\r
       }\r
       public void mousePressed(MouseEvent evt)\r
       {\r
-        if(av.groupDefiningMode)\r
-          doMousePressedDefineMode(evt);\r
-        else\r
+        if(av.getWrapAlignment())\r
+         return;\r
+        if(evt.isShiftDown() || evt.isAltDown() || evt.isControlDown())\r
+        {\r
+          if(evt.isAltDown() || evt.isControlDown())\r
+            groupEditing = true;\r
+\r
+          editingSeqs = true;\r
           doMousePressed(evt);\r
+        }\r
+        else\r
+          doMousePressedDefineMode(evt);\r
+      }\r
+      public void mouseExited(MouseEvent evt)\r
+      {\r
+        if (av.getWrapAlignment() || editingSeqs)\r
+                return;\r
+              doMouseExitedDefineMode(evt);\r
+\r
+      }\r
+      public void mouseEntered(MouseEvent evt)\r
+      {\r
+        if (av.getWrapAlignment() || editingSeqs)\r
+          return;\r
+        doMouseEnteredDefineMode(evt);\r
       }\r
 \r
     });\r
@@ -73,28 +107,23 @@ public class SeqPanel extends JPanel
 \r
   public void doMouseReleased(MouseEvent evt) {\r
 \r
-    int x = evt.getX();\r
-    int res = x/av.getCharWidth() + av.getStartRes();\r
-\r
-    endres = res;\r
+    if(seqEditOccurred>-1)\r
+      editOccurred(seqEditOccurred);\r
 \r
-      // This is to detect edits - we're at the end of an edit if mouse is up\r
-    editFlag = false;\r
     startseq = -1;\r
-    startres = -1;\r
     lastres  = -1;\r
-    if(seqEditOccurred>-1)\r
-      updateConservation(seqEditOccurred);\r
-\r
     seqEditOccurred = -1;\r
+    editingSeqs  = false;\r
+    groupEditing = false;\r
 \r
-    parent.RefreshPanels();\r
-    repaint();\r
-\r
+    ap.repaint();\r
   }\r
 \r
   public void doMousePressed(MouseEvent evt) {\r
-    parent.alignFrame.addHistoryItem("sequence edit");\r
+\r
+    ap.alignFrame.addHistoryItem( new HistoryItem(\r
+        "Edit Sequence",av.alignment, HistoryItem.EDIT));\r
+\r
     int seq;\r
     int res;\r
 \r
@@ -104,29 +133,21 @@ public class SeqPanel extends JPanel
     res = x/av.getCharWidth() + av.getStartRes();\r
     seq = y/av.getCharHeight() + av.getStartSeq();\r
 \r
-    if (seq < av.getAlignment().getHeight() && res < av.getAlignment().getSequenceAt(seq).getLength())\r
+    if (seq < av.getAlignment().getHeight() &&\r
+        res < av.getAlignment().getSequenceAt(seq).getLength())\r
     {\r
-      //char resstr = align.getSequenceAt(seq).getSequence().charAt(res);\r
-      // Find the residue's position in the sequence (res is the position\r
-      // in the alignment\r
-\r
       startseq = seq;\r
-\r
-      if (startseq == (av.getAlignment().getHeight()-1)) {\r
-        padseq = 1;\r
-      } else {\r
-        padseq = 1;\r
-      }\r
-\r
-      startres = res;\r
       lastres = res;\r
-\r
-      } else {\r
+    }\r
+    else\r
+    {\r
       startseq = -1;\r
-      startres = -1;\r
       lastres = -1;\r
     }\r
 \r
+    startEdit = lastres;\r
+    endEdit = lastres;\r
+\r
     return;\r
   }\r
 \r
@@ -143,12 +164,9 @@ public class SeqPanel extends JPanel
 \r
       res =   (int)((y/chunkHeight)*(getWidth()/av.charWidth)) +  x/av.getCharWidth() + av.getStartRes();\r
 \r
-      System.out.println( ((y/chunkHeight)*(getWidth()/av.charWidth)) +" "+((x / av.getCharWidth()) + av.getStartRes()) );\r
       y %= chunkHeight;\r
       seq =     y / av.getCharHeight() + av.getStartSeq();\r
 \r
-      //   chunkHeight =  (da.getHeight() + 2)*charHeight;\r
-      //  startx += chunkWidth;\r
     }\r
     else\r
     {\r
@@ -160,125 +178,169 @@ public class SeqPanel extends JPanel
     if(seq>=av.getAlignment().getHeight())\r
       return;\r
 \r
-    Object obj = ResidueProperties.aa2Triplet.get( av.getAlignment().getSequenceAt(seq).getCharAt(res)+"" ) ;\r
+    SequenceI sequence = av.getAlignment().getSequenceAt(seq);\r
+    if(res>sequence.getLength())\r
+      return;\r
+\r
+    Object obj = ResidueProperties.aa2Triplet.get( sequence.getCharAt(res)+"" ) ;\r
     String aa = "";\r
     if(obj!=null)\r
          aa = obj.toString();\r
 \r
-    StringBuffer text = new StringBuffer("Sequence " +(seq+1)+" ID: "+av.getAlignment().getSequenceAt(seq).getName());\r
+    StringBuffer text = new StringBuffer("Sequence " +(seq+1)+" ID: "+sequence.getName());\r
     if(aa!="")\r
       text.append("  Residue: "+aa+" ("+  av.getAlignment().getSequenceAt(seq).findPosition(res)+")");\r
 \r
-    parent.alignFrame.statusBar.setText(text.toString());\r
+    ap.alignFrame.statusBar.setText(text.toString());\r
+\r
+    // use aa to see if the mouse pointer is on a\r
+    if(  av.showSequenceFeatures)\r
+    {\r
+      Vector features = sequence.getSequenceFeatures();\r
+      Enumeration e = features.elements();\r
+      StringBuffer sbuffer = new StringBuffer();\r
+\r
+\r
+      while (e.hasMoreElements())\r
+      {\r
+        SequenceFeature sf = (SequenceFeature) e.nextElement();\r
+        if (sf.getStart() <= sequence.findPosition(res) &&\r
+            sf.getEnd() >= sequence.findPosition(res))\r
+        {\r
+          if(sbuffer.length()>0)\r
+            sbuffer.append("; ");\r
+          sbuffer.append(sf.getType() + " " + sf.getDescription());\r
+          if(sf.getStatus().length()>0)\r
+            sbuffer.append(" ("+sf.getStatus()+")");\r
+        }\r
+\r
+      }\r
+\r
+      ToolTipManager.sharedInstance().registerComponent(this);\r
+      this.setToolTipText(sbuffer.toString());\r
+    }\r
+\r
 \r
   }\r
 \r
   public void doMouseDragged(MouseEvent evt) {\r
+\r
     // If we're dragging we're editing\r
-    editFlag = true;\r
-    int x = evt.getX();\r
+    int res = evt.getX() / av.getCharWidth() + av.getStartRes();\r
+    if (res < 0)\r
+      res = 0;\r
 \r
-    int res = x/av.getCharWidth() + av.getStartRes();\r
-    if (res < 0) {res = 0;}\r
+    if (lastres == -1 || lastres == res)\r
+      return;\r
 \r
-    if (res  != lastres) {\r
-      if (startseq != -1) {\r
+    boolean dragRight = true;\r
+    if (res < av.getAlignment().getWidth() && res < lastres)\r
+      dragRight = false;\r
 \r
-       // Group editing\r
-       if (av.getGroupEdit()) {\r
-         SequenceGroup sg = av.getAlignment().findGroup(startseq);\r
 \r
-          if(sg!=null)\r
-         if (res < av.getAlignment().getWidth() && res < lastres)\r
+    if (res != lastres)\r
+    {\r
+        // Group editing\r
+        if (groupEditing)\r
+        {\r
+          SequenceGroup sg = av.getSelectionGroup();\r
+          if(sg==null)\r
           {\r
-           boolean flag = false;\r
-           for (int i= 0 ; i < sg.getSize(); i++)\r
+            lastres=-1;\r
+            return;\r
+          }\r
+\r
+            // drag to right\r
+            if(dragRight)\r
+                sg.setEndRes(sg.getEndRes() + (res-lastres));\r
+\r
+            // drag to left\r
+            else\r
             {\r
-             SequenceI s = (SequenceI)sg.getSequenceAt(i);\r
-             for (int j=lastres-1; j >= res; j--)\r
+               /// Are we able to delete?\r
+               // ie are all columns blank?\r
+               boolean deleteAllowed = false;\r
+              for (int s = 0; s < sg.getSize(); s++)\r
               {\r
-               if (!flag)\r
+                SequenceI seq = sg.getSequenceAt(s);\r
+                for (int j=res; j<lastres; j++)\r
                 {\r
-                 if (s.getSequence().charAt(j)!=av.getAlignment().getGapCharacter() &&\r
-                     s.getSequence().charAt(j)==' ')\r
+                  if(seq.getSequence().length()<=j)\r
+                    continue;\r
+\r
+                  if(!jalview.util.Comparison.isGap(seq.getSequence().charAt(j)))\r
                   {\r
-                   res = j+1;\r
-                   flag = true;\r
-                 }\r
-               }\r
-             }\r
-           }\r
-         }\r
-\r
-          if(sg!=null)\r
-         for (int i= 0 ; i < sg.getSize(); i++)\r
-          {\r
-           SequenceI s = (SequenceI)sg.getSequenceAt(i);\r
-           boolean found = false;\r
-           int sno = -1;\r
-           for (int k = 0; k < av.getAlignment().getHeight(); k++)\r
-            {\r
-             if (av.getAlignment().getSequenceAt(k) == s)\r
-              {\r
-               found = true;\r
-               sno = k;\r
-               break;\r
-             }\r
-           }\r
-           if (found && sno != -1) {\r
-             if (res < av.getAlignment().getWidth() && res > lastres)\r
+                    // Not a gap, block edit not valid\r
+                    res=j+1;\r
+                    deleteAllowed = false;\r
+                    continue;\r
+                  }\r
+                  deleteAllowed = true;\r
+                }\r
+              }\r
+\r
+              if(!deleteAllowed)\r
               {\r
-               for (int j = lastres; j < res; j++)\r
-                 insertChar(j,sno);\r
+                lastres = -1;\r
+                return;\r
+              }\r
 \r
-               int index = av.getAlignment().findIndex(s);\r
-               if (index != -1)\r
-                 drawChars(index,index+1,lastres);\r
+              sg.setEndRes(sg.getEndRes() - (lastres-res));\r
+            }\r
 \r
 \r
-             } else if (res < av.getAlignment().getWidth() && res < lastres)\r
-              {\r
-               for (int j = res; j < lastres; j++)\r
-                {\r
-                 deleteChar(j,res,sno);\r
-                 startres = res;\r
-               }\r
-               int index = av.getAlignment().findIndex(s);\r
-               if (index != -1)\r
-                 drawChars(index,index+1,res);\r
-\r
-             }\r
-           }\r
-\r
-         }\r
-         lastres = res;\r
-       } else {\r
+            for (int i = 0; i < sg.getSize(); i++)\r
+            {\r
+              SequenceI s = sg.getSequenceAt(i);\r
+              int k = av.alignment.findIndex(s);\r
 \r
+              // drag to right\r
+              if (dragRight)\r
+                for (int j = lastres; j < res; j++)\r
+                  insertChar(j, k);\r
 \r
-         if (res < av.getAlignment().getWidth() && res > lastres) {\r
+              // drag to left\r
+              else\r
+              {\r
+                for (int j = res; j < lastres; j++)\r
+                {\r
+                  if(s.getLength()>j)\r
+                    deleteChar(res, k);\r
+                }\r
+              }\r
+            }\r
+        }\r
+        else /////Editing a single sequence///////////\r
+        {\r
+          if (res < av.getAlignment().getWidth() && res > lastres)\r
+          {\r
             // dragging to the right\r
-           for (int j = lastres; j < res; j++)\r
-             insertChar(j,startseq);\r
+            for (int j = lastres; j < res; j++)\r
+              insertChar(j, startseq);\r
+          }\r
+          else if (res < av.getAlignment().getWidth() && res < lastres)\r
+          {\r
+            // dragging to the left\r
+            for (int j = lastres; j > res; j--)\r
+            {\r
+              if( jalview.util.Comparison.isGap(\r
+                av.alignment.getSequenceAt(startseq).getSequence().charAt(res)))\r
 \r
-           drawChars(startseq,startseq+1,lastres);\r
+              deleteChar(res, startseq);\r
+              else\r
+              {\r
 \r
-         } else if (res < av.getAlignment().getWidth() && res < lastres)\r
-          {\r
+                break;\r
+              }\r
+            }\r
+          }\r
 \r
-            // dragging to the left\r
-           for (int j = res; j < lastres; j++) {\r
-             deleteChar(j,res,startseq);\r
-             startres = res;\r
-           }\r
-           drawChars(startseq,startseq+1,res);\r
-         }\r
-       }\r
-      }\r
-      lastres = res;\r
+        }\r
     }\r
 \r
+    endEdit = res;\r
+    lastres = res;\r
     repaint();\r
-    return;\r
   }\r
 \r
   public void drawChars(int seqstart, int seqend, int start) {\r
@@ -288,182 +350,203 @@ public class SeqPanel extends JPanel
 \r
   public void insertChar(int j, int seq)\r
   {\r
-    av.getAlignment().getSequenceAt(seq).insertCharAt(j, av.getGapCharacter());\r
+    av.alignment.getSequenceAt(seq).insertCharAt(j, av.getGapCharacter());\r
     seqEditOccurred=seq;\r
   }\r
 \r
-  public void deleteChar(int j, int res, int seq)\r
+  public void deleteChar(int j, int seq)\r
   {\r
-\r
-    if (av.getAlignment().getSequenceAt(seq).getSequence().charAt(j)=='.' ||\r
-        av.getAlignment().getSequenceAt(seq).getSequence().charAt(j)=='-' ||\r
-        av.getAlignment().getSequenceAt(seq).getSequence().charAt(j)==' ' )\r
-    {\r
-        av.getAlignment().getSequenceAt(seq).deleteCharAt(j);\r
-    }\r
-\r
-    av.getAlignment().getWidth();\r
-    repaint();\r
+    av.alignment.getSequenceAt(seq).deleteCharAt(j);\r
     seqEditOccurred=seq;\r
-  }\r
 \r
-\r
-  void updateConservation(int i)\r
-  {\r
-    Alignment al = (Alignment) av.getAlignment();\r
-    SequenceGroup sg = av.alignment.findGroup( al.getSequenceAt(i));\r
-    if(sg==null || !(sg.cs instanceof ConservationColourScheme))\r
-      return;\r
-\r
-    Conservation c = sg.getConservation();\r
-\r
-    c = new Conservation("All", al.cons,\r
-                         ResidueProperties.propHash, 3, sg.sequences, 0,\r
-                         al.getWidth());\r
-    c.calculate();\r
-    c.verdict(false, 100);\r
-    sg.setConservation(c);\r
-    ConservationColourScheme ccs = (ConservationColourScheme)sg.cs;\r
-    ccs.conserve = c;\r
+    av.alignment.getWidth();\r
+    repaint();\r
   }\r
 \r
 \r
-  public void setColourScheme(ColourSchemeI cs, boolean showConservation)\r
+  void editOccurred(int i)\r
   {\r
-    seqCanvas.paintFlag = true;\r
-    if (av.getSelection().size() == 0)\r
+    if(endEdit==startEdit)\r
     {\r
-      seqCanvas.globalColorScheme = cs;\r
-      for (int i = 0; i < av.alignment.getGroups().size();i++)\r
-      {\r
-        SequenceGroup sg = (SequenceGroup)av.alignment.getGroups().elementAt(i);\r
-        sg.cs = cs;\r
-        if(!showConservation\r
-            && !(sg.cs instanceof Blosum62ColourScheme)\r
-            && sg.cs instanceof ConservationColourScheme)\r
-         {\r
-           // remove ConservationColouring from existing Conservation group\r
-           ConservationColourScheme ccs = (ConservationColourScheme)sg.cs;\r
-           sg.cs = ccs.cs;\r
-         }\r
-         else if(showConservation && !(sg.cs instanceof ConservationColourScheme))\r
-         {\r
-           // add ConservationColouring to new group\r
-           Conservation c = sg.getConservation();\r
-           Alignment al = (Alignment) av.getAlignment();\r
-           c = new Conservation("All", al.cons,\r
-                                ResidueProperties.propHash, 3, sg.sequences, 0,\r
-                                al.getWidth() );\r
-           c.calculate();\r
-           c.verdict(false, 100);\r
-           sg.setConservation(c);\r
-           sg.cs = new ConservationColourScheme(sg);\r
-         }\r
-      }\r
+      ap.alignFrame.historyList.pop();\r
+      ap.alignFrame.updateEditMenuBar();\r
     }\r
-    else\r
-    {\r
-      SequenceGroup sg = av.alignment.findGroup((Sequence)av.sel.sequenceAt(0));\r
-\r
-      if( isNewSelection(sg) )\r
-      {\r
-        sg = av.getAlignment().addGroup();\r
-        for (int i=0; i < av.getSelection().size(); i++)\r
-        {\r
-          av.alignment.removeFromGroup(av.alignment.findGroup( (Sequence) av.\r
-              sel.sequenceAt(i)),\r
-                                       (Sequence) av.sel.sequenceAt(i));\r
-          av.alignment.addToGroup(sg, (Sequence) av.sel.sequenceAt(i));\r
-        }\r
-      }\r
-\r
 \r
-      sg.cs = cs;\r
+    av.updateConservation();\r
+    av.updateConsensus();\r
 \r
-      // Selection is made, we only want to change the conservationColour for selected group\r
-      if(  showConservation\r
-           && !(sg.cs instanceof ConservationColourScheme)\r
-           && !(sg.cs instanceof Blosum62ColourScheme))\r
-      {\r
-        Conservation c = sg.getConservation();\r
-        Alignment al = (Alignment) av.getAlignment();\r
-\r
-        c = new Conservation("All", al.cons,\r
-                             ResidueProperties.propHash, 3, sg.sequences, 0,\r
-                             al.getWidth() );\r
+    // Y O Y CLUSTALX\r
+    ColourSchemeI cs = av.getGlobalColourScheme();\r
+    if(cs instanceof ConservationColourScheme)\r
+    {\r
+      ConservationColourScheme ccs =  (ConservationColourScheme) cs;\r
+      if(ccs.cs instanceof ClustalxColourScheme)\r
+     {\r
+        Conservation c = new Conservation("All",\r
+                                          ResidueProperties.propHash, 3,\r
+                                          av.alignment.getSequences(), 0,\r
+                                          av.alignment.getWidth() - 1);\r
         c.calculate();\r
-        c.verdict(false, 100);\r
-        sg.setConservation(c);\r
-        sg.cs = new ConservationColourScheme(sg);\r
+        c.verdict(false, av.ConsPercGaps);\r
+\r
+        ClustalxColourScheme cxs = (ClustalxColourScheme)ccs.cs;\r
+        cxs.resetClustalX(av.alignment.getSequences(),  av.alignment.getWidth());\r
+        ccs = new ConservationColourScheme(c, cxs);\r
+        av.setGlobalColourScheme(ccs);\r
+     }\r
     }\r
-    else  if( !showConservation && sg.cs instanceof ConservationColourScheme)\r
+\r
+    if(cs instanceof ClustalxColourScheme)\r
     {\r
-      ConservationColourScheme ccs = (ConservationColourScheme)sg.cs;\r
-      sg.cs = ccs.cs;\r
+      ((ClustalxColourScheme)cs).resetClustalX(av.alignment.getSequences(),\r
+                                    av.alignment.getWidth());\r
+      av.setGlobalColourScheme(cs);\r
     }\r
-   }\r
-   repaint();\r
-  }\r
 \r
-  boolean isNewSelection(SequenceGroup sg)\r
-  {\r
-    if(sg==null)\r
-      return true;\r
-\r
-    if(sg.getSize()!=av.getSelection().size())\r
-      return true;\r
-\r
-    for(int i=0; i<sg.getSize(); i++)\r
-     if( !av.getSelection().contains( sg.getSequenceAt(i) ))\r
-       return true;\r
-\r
-    return false;\r
-  }\r
-\r
-\r
-  public ColourSchemeI getColourScheme()\r
-  {\r
-    if(av.getSelection().size()>0)\r
-       return av.alignment.findGroup((Sequence)av.sel.sequenceAt(0)).cs;\r
-    else\r
-      return seqCanvas.globalColorScheme;\r
   }\r
 \r
+//////////////////////////////////////////\r
+/////Everything below this is for defining the boundary of the rubberband\r
+//////////////////////////////////////////\r
+  int oldSeq = -1;\r
   public void doMousePressedDefineMode(MouseEvent evt)\r
   {\r
     int res = evt.getX()/av.getCharWidth() + av.getStartRes();\r
     int seq = evt.getY()/av.getCharHeight() + av.getStartSeq();\r
+    oldSeq = seq;\r
+\r
+    SequenceI sequence = (Sequence) av.getAlignment().getSequenceAt(seq);\r
 \r
-    stretchGroup = av.alignment.findGroup((Sequence)av.getAlignment().getSequenceAt(seq));\r
+    if(sequence==null || res>sequence.getLength())\r
+      return;\r
 \r
-    if(stretchGroup!=null  && stretchGroup.getEndRes()==res)\r
+    stretchGroup = av.getSelectionGroup();\r
+\r
+    if(stretchGroup == null)\r
+     {\r
+       stretchGroup = av.alignment.findGroup( sequence );\r
+       if(stretchGroup!=null && res>stretchGroup.getStartRes() && res<stretchGroup.getEndRes())\r
+         av.setSelectionGroup(stretchGroup);\r
+       else\r
+         stretchGroup = null;\r
+     }\r
+\r
+    else if(!stretchGroup.sequences.contains(sequence)\r
+            || stretchGroup.getStartRes()>res\r
+            || stretchGroup.getEndRes()<res)\r
+     {\r
+       stretchGroup = null;\r
+\r
+       SequenceGroup[] allGroups = av.alignment.findAllGroups( sequence );\r
+\r
+       if (allGroups != null)\r
+         for (int i = 0; i < allGroups.length; i++)\r
+           if (allGroups[i].getStartRes() <= res &&\r
+               allGroups[i].getEndRes() >= res)\r
+           {\r
+             stretchGroup = allGroups[i];\r
+             av.setSelectionGroup(stretchGroup);\r
+             break;\r
+           }\r
+     }\r
+\r
+    if(stretchGroup==null)\r
     {\r
-      // Edit end res position of selected group\r
-      changeEndRes = true;\r
+      // define a new group here\r
+      SequenceGroup sg = new SequenceGroup();\r
+      sg.setStartRes(res);\r
+      sg.setEndRes(res);\r
+      sg.addSequence( sequence );\r
+      av.setSelectionGroup( sg );\r
+      stretchGroup = sg;\r
+\r
+      if(av.getConservationSelected())\r
+        SliderPanel.setConservationSlider(ap, av.getGlobalColourScheme(), "Background");\r
+      if(av.getAbovePIDThreshold())\r
+        SliderPanel.setPIDSliderSource(ap, av.getGlobalColourScheme(), "Background");\r
+\r
     }\r
-    else if(stretchGroup!=null  && stretchGroup.getStartRes()==res)\r
+    else if( javax.swing.SwingUtilities.isRightMouseButton(evt))\r
     {\r
+        jalview.gui.PopupMenu pop = new jalview.gui.PopupMenu( ap , null);\r
+        pop.show(this, evt.getX(), evt.getY());\r
+\r
+    // edit the properties of existing group\r
+    }\r
+\r
+    if(stretchGroup!=null && stretchGroup.getEndRes()==res)\r
+      // Edit end res position of selected group\r
+      changeEndRes = true;\r
+\r
+   else if(stretchGroup!=null && stretchGroup.getStartRes()==res)\r
       // Edit end res position of selected group\r
       changeStartRes = true;\r
-    }\r
 \r
+    stretchGroup.getWidth();\r
+\r
+    repaint();\r
 \r
   }\r
 \r
+  boolean changeEndSeq = false;\r
+  boolean changeStartSeq = false;\r
   boolean changeEndRes = false;\r
   boolean changeStartRes = false;\r
   SequenceGroup stretchGroup = null;\r
 \r
   public void doMouseReleasedDefineMode(MouseEvent evt)\r
   {\r
+    mouseDragging = false;\r
+\r
+    if(stretchGroup==null)\r
+      return;\r
+\r
+    if(stretchGroup.cs instanceof ClustalxColourScheme)\r
+    {\r
+      stretchGroup.cs = new ClustalxColourScheme(stretchGroup.sequences, av.alignment.getWidth());\r
+      repaint();\r
+    }\r
+\r
+    else if(stretchGroup.cs instanceof ConservationColourScheme)\r
+    {\r
+       ConservationColourScheme ccs = (ConservationColourScheme)stretchGroup.cs;\r
+       stretchGroup.cs = ccs;\r
+       SliderPanel.setConservationSlider(ap, stretchGroup.cs, stretchGroup.getName()) ;\r
+\r
+       repaint();\r
+    }\r
+    else\r
+        SliderPanel.setPIDSliderSource(ap, stretchGroup.cs, stretchGroup.getName());\r
+\r
+\r
     changeEndRes = false;\r
     changeStartRes = false;\r
+    stretchGroup = null;\r
+    ap.idPanel.repaint();\r
   }\r
 \r
+\r
+  boolean remove = false;\r
   public void doMouseDraggedDefineMode(MouseEvent evt)\r
   {\r
     int res = evt.getX()/av.getCharWidth() + av.getStartRes();\r
-    int seq = evt.getY()/av.getCharHeight() + av.getStartSeq();\r
+    int y = evt.getY()/av.getCharHeight() + av.getStartSeq();\r
+\r
+    if(stretchGroup==null)\r
+      return;\r
+\r
+    if(res>av.alignment.getWidth())\r
+      res = av.alignment.getWidth()-1;\r
+\r
+\r
+    if(stretchGroup.getEndRes()==res)\r
+      // Edit end res position of selected group\r
+      changeEndRes = true;\r
+\r
+    else if(stretchGroup.getStartRes()==res)\r
+      // Edit start res position of selected group\r
+      changeStartRes = true;\r
+\r
 \r
     if(res<av.getStartRes())\r
       res = av.getStartRes();\r
@@ -480,10 +563,110 @@ public class SeqPanel extends JPanel
       if(res<stretchGroup.getEndRes()+1)\r
         stretchGroup.setStartRes( res );\r
     }\r
-    seqCanvas.paintFlag = true;\r
+\r
+    int dragDirection = 0;\r
+    if (y > oldSeq)\r
+      dragDirection = 1;\r
+    else if (y < oldSeq)\r
+      dragDirection = -1;\r
+\r
+    while (y != oldSeq && oldSeq>0 && y<av.alignment.getHeight())\r
+    {\r
+      // This routine ensures we don't skip any sequences, as the\r
+      // selection is quite slow.\r
+      Sequence seq = (Sequence) av.getAlignment().getSequenceAt(oldSeq);\r
+\r
+      oldSeq += dragDirection;\r
+      Sequence nextSeq = (Sequence) av.getAlignment().getSequenceAt(oldSeq);\r
+\r
+      if (stretchGroup.sequences.contains(nextSeq))\r
+      {\r
+        stretchGroup.deleteSequence(seq);\r
+        stretchGroup.deleteSequence(nextSeq);\r
+      }\r
+      else\r
+      {\r
+       if(seq!=null)\r
+        stretchGroup.addSequence(seq);\r
+        stretchGroup.addSequence(nextSeq);\r
+      }\r
+    }\r
+    oldSeq = y;\r
+    mouseDragging = true;\r
+    if(scrollThread!=null)\r
+      scrollThread.setEvent(evt);\r
+\r
     repaint();\r
+  }\r
+\r
+  public void doMouseEnteredDefineMode(MouseEvent e)\r
+  {\r
+    if (scrollThread != null)\r
+      scrollThread.running = false;\r
+  }\r
+\r
+  public void doMouseExitedDefineMode(MouseEvent e)\r
+  {\r
+    if (av.getWrapAlignment())\r
+      return;\r
+\r
+    if(mouseDragging)\r
+      scrollThread = new ScrollThread();\r
 \r
   }\r
+  // this class allows scrolling off the bottom of the visible alignment\r
+  class ScrollThread extends Thread\r
+  {\r
+    MouseEvent evt;\r
+    boolean running = false;\r
+    public ScrollThread()\r
+    {\r
+      start();\r
+    }\r
+\r
+    public void setEvent(MouseEvent e)\r
+    {\r
+      evt = e;\r
+    }\r
+\r
+    public void stopScrolling()\r
+    {\r
+      running = false;\r
+    }\r
+\r
+    public void run()\r
+    {\r
+      running = true;\r
+      while (running)\r
+      {\r
+        if(evt!=null)\r
+        {\r
+\r
+          if (mouseDragging && evt.getY() < 0 && av.getStartSeq() > 0)\r
+            running = ap.scrollUp(true);\r
+\r
+          if (mouseDragging && evt.getY() >= getHeight() &&\r
+              av.alignment.getHeight() > av.getEndSeq())\r
+            running = ap.scrollUp(false);\r
+\r
+          if (mouseDragging && evt.getX() < 0)\r
+            running = ap.scrollRight(true);\r
+\r
+          else if (mouseDragging && evt.getX() >= getWidth())\r
+            running = ap.scrollRight(false);\r
+        }\r
+\r
+        try\r
+        {\r
+          Thread.sleep(75);\r
+        }\r
+        catch (Exception ex)\r
+        {}\r
+      }\r
+    }\r
+}\r
+\r
+\r
 \r
 }\r
 \r