GPL license added
[jalview.git] / src / jalview / gui / SeqPanel.java
index 468fadb..44cf4d4 100755 (executable)
@@ -1,31 +1,55 @@
+/*\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.gui;\r
 \r
 import java.awt.*;\r
 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
   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
@@ -33,16 +57,21 @@ 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(evt.isShiftDown() || evt.isAltDown() || evt.isControlDown())\r
+        if(av.getWrapAlignment())\r
+         return;\r
+        if( editingSeqs )\r
           doMouseDragged(evt);\r
         else\r
           doMouseDraggedDefineMode(evt);\r
@@ -53,18 +82,42 @@ public class SeqPanel extends JPanel
     {\r
       public void mouseReleased(MouseEvent evt)\r
       {\r
-        if(evt.isShiftDown() || evt.isAltDown() || evt.isControlDown())\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.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
     repaint();\r
@@ -73,26 +126,23 @@ 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
     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
@@ -105,28 +155,18 @@ public class SeqPanel extends JPanel
     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
-      startres = res;\r
       lastres = res;\r
-\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
@@ -146,8 +186,6 @@ public class SeqPanel extends JPanel
       y %= chunkHeight;\r
       seq =     y / av.getCharHeight() + av.getStartSeq();\r
 \r
-      //   chunkHeight =  (da.getHeight() + 2)*charHeight;\r
-      //  startx += chunkWidth;\r
     }\r
     else\r
     {\r
@@ -159,68 +197,115 @@ 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
-    // If we're dragging we're editing\r
 \r
-    int x = evt.getX();\r
-\r
-    int res = x/av.getCharWidth() + av.getStartRes();\r
+    // If we're dragging we're editing\r
+    int res = evt.getX() / av.getCharWidth() + av.getStartRes();\r
     if (res < 0)\r
       res = 0;\r
 \r
+    if (lastres == -1 || lastres == res)\r
+      return;\r
+\r
+    boolean dragRight = true;\r
+    if (res < av.getAlignment().getWidth() && res < lastres)\r
+      dragRight = false;\r
+\r
+\r
     if (res != lastres)\r
     {\r
-       // Group editing\r
-       if (evt.isAltDown() || evt.isControlDown())\r
+        // Group editing\r
+        if (groupEditing)\r
         {\r
-         SequenceGroup sg = av.getAlignment().findGroup(startseq);\r
-          if (sg != null)\r
+          SequenceGroup sg = av.getSelectionGroup();\r
+          if(sg==null)\r
           {\r
-            boolean deleteAllowed = false;\r
-            if (res < av.getAlignment().getWidth() && res < lastres)\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
-              /// Are we able to delete?\r
-              boolean allGaps = true;\r
-              for (int i = 0; i < sg.getSize(); i++)\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
-                SequenceI s = sg.getSequenceAt(i);\r
-                for (int j = lastres-1; j >= res && allGaps; j--)\r
+                SequenceI seq = sg.getSequenceAt(s);\r
+                for (int j=res; j<lastres; j++)\r
                 {\r
-                    if (!jalview.util.Comparison.isGap(s.getSequence().charAt(j)))\r
-                    {\r
-                      res = j + 1;\r
-                      allGaps = false;\r
-                    }\r
-                }\r
-\r
-                if(!deleteAllowed && allGaps)\r
+                  if(seq.getSequence().length()<=j)\r
+                    continue;\r
+\r
+                  if(!jalview.util.Comparison.isGap(seq.getSequence().charAt(j)))\r
+                  {\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
-\r
-            // drag to right\r
-            if (res < av.getAlignment().getWidth() && res > lastres)\r
-                sg.setEndRes(sg.getEndRes() + 1);\r
-\r
-            // drag to left\r
-            else if (deleteAllowed && res < av.getAlignment().getWidth() &&\r
-                     res < lastres)\r
-                sg.setEndRes(sg.getEndRes() - 1);\r
 \r
+              if(!deleteAllowed)\r
+              {\r
+                lastres = -1;\r
+                return;\r
+              }\r
 \r
+              sg.setEndRes(sg.getEndRes() - (lastres-res));\r
+            }\r
 \r
 \r
             for (int i = 0; i < sg.getSize(); i++)\r
@@ -229,21 +314,20 @@ public class SeqPanel extends JPanel
               int k = av.alignment.findIndex(s);\r
 \r
               // drag to right\r
-              if (res < av.getAlignment().getWidth() && res > lastres)\r
+              if (dragRight)\r
                 for (int j = lastres; j < res; j++)\r
                   insertChar(j, k);\r
 \r
               // drag to left\r
-              else if (deleteAllowed && res < av.getAlignment().getWidth() && res < lastres)\r
+              else\r
               {\r
                 for (int j = res; j < lastres; j++)\r
                 {\r
-                  deleteChar(j, k);\r
-                  startres = res;\r
+                  if(s.getLength()>j)\r
+                    deleteChar(res, k);\r
                 }\r
               }\r
             }\r
-          }\r
         }\r
         else /////Editing a single sequence///////////\r
         {\r
@@ -256,17 +340,24 @@ public class SeqPanel extends JPanel
           else if (res < av.getAlignment().getWidth() && res < lastres)\r
           {\r
             // dragging to the left\r
-            for (int j = res; j < lastres; j++)\r
+            for (int j = lastres; j > res; j--)\r
             {\r
-              deleteChar(j, startseq);\r
-              startres = res;\r
-            }\r
-         }\r
+              if( jalview.util.Comparison.isGap(\r
+                av.alignment.getSequenceAt(startseq).getSequence().charAt(res)))\r
 \r
-       }\r
+              deleteChar(res, startseq);\r
+              else\r
+              {\r
+\r
+                break;\r
+              }\r
+            }\r
+          }\r
 \r
+        }\r
     }\r
 \r
+    endEdit = res;\r
     lastres = res;\r
     repaint();\r
   }\r
@@ -284,33 +375,53 @@ public class SeqPanel extends JPanel
 \r
   public void deleteChar(int j, int seq)\r
   {\r
-\r
-    if ( jalview.util.Comparison.isGap( av.alignment.getSequenceAt(seq).getSequence().charAt(j)))\r
-        av.alignment.getSequenceAt(seq).deleteCharAt(j);\r
+    av.alignment.getSequenceAt(seq).deleteCharAt(j);\r
+    seqEditOccurred=seq;\r
 \r
     av.alignment.getWidth();\r
     repaint();\r
-    seqEditOccurred=seq;\r
   }\r
 \r
 \r
-  void updateConservation(int i)\r
+  void editOccurred(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
+    if(endEdit==startEdit)\r
+    {\r
+      ap.alignFrame.historyList.pop();\r
+      ap.alignFrame.updateEditMenuBar();\r
+    }\r
+\r
+    av.updateConservation();\r
+    av.updateConsensus();\r
+\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, 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
 \r
-    Conservation c = sg.getConservation();\r
+    if(cs instanceof ClustalxColourScheme)\r
+    {\r
+      ((ClustalxColourScheme)cs).resetClustalX(av.alignment.getSequences(),\r
+                                    av.alignment.getWidth());\r
+      av.setGlobalColourScheme(cs);\r
+    }\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
   }\r
 \r
 //////////////////////////////////////////\r
@@ -323,20 +434,29 @@ public class SeqPanel extends JPanel
     int seq = evt.getY()/av.getCharHeight() + av.getStartSeq();\r
     oldSeq = seq;\r
 \r
-    stretchGroup = av.getRubberbandGroup();\r
+    SequenceI sequence = (Sequence) av.getAlignment().getSequenceAt(seq);\r
+\r
+    if(sequence==null || res>sequence.getLength())\r
+      return;\r
+\r
+    stretchGroup = av.getSelectionGroup();\r
 \r
     if(stretchGroup == null)\r
-        stretchGroup = av.alignment.findGroup((Sequence)av.getAlignment().getSequenceAt(seq));\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)av.getAlignment().getSequenceAt(seq))\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) av.\r
-           getAlignment().\r
-           getSequenceAt(seq));\r
+       SequenceGroup[] allGroups = av.alignment.findAllGroups( sequence );\r
 \r
        if (allGroups != null)\r
          for (int i = 0; i < allGroups.length; i++)\r
@@ -344,7 +464,7 @@ public class SeqPanel extends JPanel
                allGroups[i].getEndRes() >= res)\r
            {\r
              stretchGroup = allGroups[i];\r
-             av.setRubberbandGroup(stretchGroup);\r
+             av.setSelectionGroup(stretchGroup);\r
              break;\r
            }\r
      }\r
@@ -355,13 +475,19 @@ public class SeqPanel extends JPanel
       SequenceGroup sg = new SequenceGroup();\r
       sg.setStartRes(res);\r
       sg.setEndRes(res);\r
-      sg.addSequence( (Sequence)av.getAlignment().getSequenceAt(seq) );\r
-      av.setRubberbandGroup( sg );\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( javax.swing.SwingUtilities.isRightMouseButton(evt))\r
     {\r
-        jalview.gui.PopupMenu pop = new jalview.gui.PopupMenu( parent , null);\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
@@ -375,11 +501,10 @@ public class SeqPanel extends JPanel
       // Edit end res position of selected group\r
       changeStartRes = true;\r
 \r
+    stretchGroup.getWidth();\r
 \r
-    seqCanvas.paintFlag = true;\r
     repaint();\r
 \r
-\r
   }\r
 \r
   boolean changeEndSeq = false;\r
@@ -390,9 +515,33 @@ public class SeqPanel extends JPanel
 \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
@@ -402,13 +551,19 @@ public class SeqPanel extends JPanel
     int res = evt.getX()/av.getCharWidth() + av.getStartRes();\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 end res position of selected group\r
+      // Edit start res position of selected group\r
       changeStartRes = true;\r
 \r
 \r
@@ -428,14 +583,13 @@ public class SeqPanel extends JPanel
         stretchGroup.setStartRes( res );\r
     }\r
 \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)\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
@@ -451,16 +605,87 @@ public class SeqPanel extends JPanel
       }\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
-    seqCanvas.paintFlag = true;\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