corrected subtree colour dialogbox title
authorjprocter <Jim Procter>
Tue, 21 Nov 2006 17:50:23 +0000 (17:50 +0000)
committerjprocter <Jim Procter>
Tue, 21 Nov 2006 17:50:23 +0000 (17:50 +0000)
src/jalview/gui/TreeCanvas.java

index 6f60792..dc08b9a 100755 (executable)
-/*\r
- * Jalview - A Sequence Alignment Editor and Viewer\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
- * 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
-package jalview.gui;\r
-\r
-import jalview.analysis.*;\r
-\r
-import jalview.datamodel.*;\r
-\r
-import jalview.schemes.*;\r
-\r
-import jalview.util.*;\r
-\r
-import java.awt.*;\r
-import java.awt.event.*;\r
-import java.awt.print.*;\r
-\r
-import java.util.*;\r
-\r
-import javax.swing.*;\r
-\r
-\r
-/**\r
- * DOCUMENT ME!\r
- *\r
- * @author $author$\r
- * @version $Revision$\r
- */\r
-public class TreeCanvas extends JPanel implements MouseListener, Runnable,\r
-    Printable, MouseMotionListener\r
-{\r
-    /** DOCUMENT ME!! */\r
-    public static final String PLACEHOLDER = " * ";\r
-    NJTree tree;\r
-    JScrollPane scrollPane;\r
-    AlignViewport av;\r
-    AlignmentPanel ap;\r
-    Font font;\r
-    FontMetrics fm;\r
-    boolean fitToWindow = true;\r
-    boolean showDistances = false;\r
-    boolean showBootstrap = false;\r
-    boolean markPlaceholders = false;\r
-    int offx = 20;\r
-    int offy;\r
-    float threshold;\r
-    String longestName;\r
-    int labelLength = -1;\r
-\r
-    Hashtable nameHash = new Hashtable();\r
-    Hashtable nodeHash = new Hashtable();\r
-    SequenceNode highlightNode;\r
-\r
-    /**\r
-     * Creates a new TreeCanvas object.\r
-     *\r
-     * @param av DOCUMENT ME!\r
-     * @param tree DOCUMENT ME!\r
-     * @param scroller DOCUMENT ME!\r
-     * @param label DOCUMENT ME!\r
-     */\r
-    public TreeCanvas(AlignmentPanel ap, JScrollPane scroller)\r
-    {\r
-        this.av = ap.av;\r
-        this.ap = ap;\r
-        font = av.getFont();\r
-        scrollPane = scroller;\r
-        addMouseListener(this);\r
-        addMouseMotionListener(this);\r
-        PaintRefresher.Register(this, ap.av.getSequenceSetId());\r
-        ToolTipManager.sharedInstance().registerComponent(this);\r
-    }\r
-\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param sequence DOCUMENT ME!\r
-     */\r
-    public void treeSelectionChanged(SequenceI sequence)\r
-    {\r
-        SequenceGroup selected = av.getSelectionGroup();\r
-\r
-        if (selected == null)\r
-        {\r
-            selected = new SequenceGroup();\r
-            av.setSelectionGroup(selected);\r
-        }\r
-\r
-        selected.setEndRes(av.alignment.getWidth()-1);\r
-        selected.addOrRemove(sequence, true);\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param tree DOCUMENT ME!\r
-     */\r
-    public void setTree(NJTree tree)\r
-    {\r
-        this.tree = tree;\r
-        tree.findHeight(tree.getTopNode());\r
-\r
-        // Now have to calculate longest name based on the leaves\r
-        Vector leaves = tree.findLeaves(tree.getTopNode(), new Vector());\r
-        boolean has_placeholders = false;\r
-        longestName = "";\r
-\r
-        for (int i = 0; i < leaves.size(); i++)\r
-        {\r
-          SequenceNode lf = (SequenceNode) leaves.elementAt(i);\r
-\r
-          if (lf.isPlaceholder())\r
-          {\r
-            has_placeholders = true;\r
-          }\r
-\r
-          if (longestName.length() < ( (Sequence) lf.element()).getName()\r
-              .length())\r
-          {\r
-            longestName = TreeCanvas.PLACEHOLDER +\r
-                ( (Sequence) lf.element()).getName();\r
-          }\r
-        }\r
-\r
-        setMarkPlaceholders(has_placeholders);\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param g DOCUMENT ME!\r
-     * @param node DOCUMENT ME!\r
-     * @param chunk DOCUMENT ME!\r
-     * @param scale DOCUMENT ME!\r
-     * @param width DOCUMENT ME!\r
-     * @param offx DOCUMENT ME!\r
-     * @param offy DOCUMENT ME!\r
-     */\r
-    public void drawNode(Graphics g, SequenceNode node, float chunk,\r
-        float scale, int width, int offx, int offy)\r
-    {\r
-        if (node == null)\r
-        {\r
-            return;\r
-        }\r
-\r
-        if ((node.left() == null) && (node.right() == null))\r
-        {\r
-            // Drawing leaf node\r
-            float height = node.height;\r
-            float dist = node.dist;\r
-\r
-            int xstart = (int) ((height - dist) * scale) + offx;\r
-            int xend = (int) (height * scale) + offx;\r
-\r
-            int ypos = (int) (node.ycount * chunk) + offy;\r
-\r
-            if (node.element() instanceof SequenceI)\r
-            {\r
-              SequenceI seq = (SequenceI)((SequenceNode) node).element();\r
-\r
-                if (av.getSequenceColour(seq) == Color.white)\r
-                {\r
-                    g.setColor(Color.black);\r
-                }\r
-                else\r
-                {\r
-                    g.setColor(av.getSequenceColour(seq).darker());\r
-                }\r
-            }\r
-            else\r
-            {\r
-                g.setColor(Color.black);\r
-            }\r
-\r
-            // Draw horizontal line\r
-            g.drawLine(xstart, ypos, xend, ypos);\r
-\r
-            String nodeLabel = "";\r
-\r
-            if (showDistances && (node.dist > 0))\r
-            {\r
-                nodeLabel = new Format("%-.2f").form(node.dist);\r
-            }\r
-\r
-            if (showBootstrap)\r
-            {\r
-                if (showDistances)\r
-                {\r
-                    nodeLabel = nodeLabel + " : ";\r
-                }\r
-\r
-                nodeLabel = nodeLabel + String.valueOf(node.getBootstrap());\r
-            }\r
-\r
-            if (!nodeLabel.equals(""))\r
-            {\r
-                g.drawString(nodeLabel, xstart+2, ypos - 2);\r
-            }\r
-\r
-            String name = (markPlaceholders && node.isPlaceholder())\r
-                ? (PLACEHOLDER + node.getName()) : node.getName();\r
-\r
-            int charWidth = fm.stringWidth(name) + 3;\r
-            int charHeight = font.getSize();\r
-\r
-            Rectangle rect = new Rectangle(xend+10, ypos-charHeight/2,\r
-                    charWidth, charHeight);\r
-\r
-            nameHash.put((SequenceI) node.element(), rect);\r
-\r
-            // Colour selected leaves differently\r
-            SequenceGroup selected = av.getSelectionGroup();\r
-\r
-            if ((selected != null) &&\r
-                    selected.getSequences(false).contains((SequenceI) node.element()))\r
-            {\r
-                g.setColor(Color.gray);\r
-\r
-                g.fillRect(xend + 10, ypos-charHeight/2, charWidth,\r
-                    charHeight);\r
-                g.setColor(Color.white);\r
-            }\r
-\r
-            g.drawString(name, xend + 10, ypos+fm.getDescent());\r
-            g.setColor(Color.black);\r
-        }\r
-        else\r
-        {\r
-            drawNode(g, (SequenceNode) node.left(), chunk, scale, width, offx,\r
-                offy);\r
-            drawNode(g, (SequenceNode) node.right(), chunk, scale, width, offx,\r
-                offy);\r
-\r
-            float height = node.height;\r
-            float dist = node.dist;\r
-\r
-            int xstart = (int) ((height - dist) * scale) + offx;\r
-            int xend = (int) (height * scale) + offx;\r
-            int ypos = (int) (node.ycount * chunk) + offy;\r
-\r
-            g.setColor(((SequenceNode) node).color.darker());\r
-\r
-            // Draw horizontal line\r
-            g.drawLine(xstart, ypos, xend, ypos);\r
-            if (node == highlightNode)\r
-              g.fillRect(xend - 3, ypos - 3, 6, 6);\r
-            else\r
-              g.fillRect(xend - 2, ypos - 2, 4, 4);\r
-\r
-            int ystart = (int) (((SequenceNode) node.left()).ycount * chunk) +\r
-                offy;\r
-            int yend = (int) (((SequenceNode) node.right()).ycount * chunk) +\r
-                offy;\r
-\r
-            Rectangle pos = new Rectangle(xend - 2, ypos - 2, 5, 5);\r
-            nodeHash.put(node, pos);\r
-\r
-            g.drawLine((int) (height * scale) + offx, ystart,\r
-                (int) (height * scale) + offx, yend);\r
-\r
-            if (showDistances && (node.dist > 0))\r
-            {\r
-                g.drawString(new Format("%-.2f").form(node.dist).trim(), xstart+2,\r
-                    ypos - 2);\r
-            }\r
-        }\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param x DOCUMENT ME!\r
-     * @param y DOCUMENT ME!\r
-     *\r
-     * @return DOCUMENT ME!\r
-     */\r
-    public Object findElement(int x, int y)\r
-    {\r
-        Enumeration keys = nameHash.keys();\r
-\r
-        while (keys.hasMoreElements())\r
-        {\r
-            Object ob = keys.nextElement();\r
-            Rectangle rect = (Rectangle) nameHash.get(ob);\r
-\r
-            if ((x >= rect.x) && (x <= (rect.x + rect.width)) && (y >= rect.y) &&\r
-                    (y <= (rect.y + rect.height)))\r
-            {\r
-                return ob;\r
-            }\r
-        }\r
-\r
-        keys = nodeHash.keys();\r
-\r
-        while (keys.hasMoreElements())\r
-        {\r
-            Object ob = keys.nextElement();\r
-            Rectangle rect = (Rectangle) nodeHash.get(ob);\r
-\r
-            if ((x >= rect.x) && (x <= (rect.x + rect.width)) && (y >= rect.y) &&\r
-                    (y <= (rect.y + rect.height)))\r
-            {\r
-                return ob;\r
-            }\r
-        }\r
-\r
-        return null;\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param pickBox DOCUMENT ME!\r
-     */\r
-    public void pickNodes(Rectangle pickBox)\r
-    {\r
-        int width = getWidth();\r
-        int height = getHeight();\r
-\r
-        SequenceNode top = tree.getTopNode();\r
-\r
-        float wscale = (float) ((width * .8) - (offx * 2)) / tree.getMaxHeight();\r
-\r
-        if (top.count == 0)\r
-        {\r
-            top.count = ((SequenceNode) top.left()).count +\r
-                ((SequenceNode) top.right()).count;\r
-        }\r
-\r
-        float chunk = (float) (height - (offy)) / top.count;\r
-\r
-        pickNode(pickBox, top, chunk, wscale, width, offx, offy);\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param pickBox DOCUMENT ME!\r
-     * @param node DOCUMENT ME!\r
-     * @param chunk DOCUMENT ME!\r
-     * @param scale DOCUMENT ME!\r
-     * @param width DOCUMENT ME!\r
-     * @param offx DOCUMENT ME!\r
-     * @param offy DOCUMENT ME!\r
-     */\r
-    public void pickNode(Rectangle pickBox, SequenceNode node, float chunk,\r
-        float scale, int width, int offx, int offy)\r
-    {\r
-        if (node == null)\r
-        {\r
-            return;\r
-        }\r
-\r
-        if ((node.left() == null) && (node.right() == null))\r
-        {\r
-            float height = node.height;\r
-            float dist = node.dist;\r
-\r
-            int xstart = (int) ((height - dist) * scale) + offx;\r
-            int xend = (int) (height * scale) + offx;\r
-\r
-            int ypos = (int) (node.ycount * chunk) + offy;\r
-\r
-            if (pickBox.contains(new Point(xend, ypos)))\r
-            {\r
-                if (node.element() instanceof SequenceI)\r
-                {\r
-                    SequenceI seq = (SequenceI) node.element();\r
-                    SequenceGroup sg = av.getSelectionGroup();\r
-\r
-                    if (sg != null)\r
-                    {\r
-                        sg.addOrRemove(seq, true);\r
-                    }\r
-                }\r
-            }\r
-        }\r
-        else\r
-        {\r
-            pickNode(pickBox, (SequenceNode) node.left(), chunk, scale, width,\r
-                offx, offy);\r
-            pickNode(pickBox, (SequenceNode) node.right(), chunk, scale, width,\r
-                offx, offy);\r
-        }\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param node DOCUMENT ME!\r
-     * @param c DOCUMENT ME!\r
-     */\r
-    public void setColor(SequenceNode node, Color c)\r
-    {\r
-        if (node == null)\r
-        {\r
-            return;\r
-        }\r
-\r
-        if ((node.left() == null) && (node.right() == null))\r
-        {\r
-            node.color = c;\r
-\r
-            if (node.element() instanceof SequenceI)\r
-            {\r
-              av.setSequenceColour((SequenceI) node.element(), c);\r
-            }\r
-        }\r
-        else\r
-        {\r
-            node.color = c;\r
-            setColor((SequenceNode) node.left(), c);\r
-            setColor((SequenceNode) node.right(), c);\r
-        }\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     */\r
-    void startPrinting()\r
-    {\r
-        Thread thread = new Thread(this);\r
-        thread.start();\r
-    }\r
-\r
-    // put printing in a thread to avoid painting problems\r
-    public void run()\r
-    {\r
-        PrinterJob printJob = PrinterJob.getPrinterJob();\r
-        PageFormat pf = printJob.pageDialog(printJob.defaultPage());\r
-\r
-        printJob.setPrintable(this, pf);\r
-\r
-        if (printJob.printDialog())\r
-        {\r
-            try\r
-            {\r
-                printJob.print();\r
-            }\r
-            catch (Exception PrintException)\r
-            {\r
-                PrintException.printStackTrace();\r
-            }\r
-        }\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param pg DOCUMENT ME!\r
-     * @param pf DOCUMENT ME!\r
-     * @param pi DOCUMENT ME!\r
-     *\r
-     * @return DOCUMENT ME!\r
-     *\r
-     * @throws PrinterException DOCUMENT ME!\r
-     */\r
-    public int print(Graphics pg, PageFormat pf, int pi)\r
-        throws PrinterException\r
-    {\r
-        pg.setFont(font);\r
-        pg.translate((int) pf.getImageableX(), (int) pf.getImageableY());\r
-\r
-        int pwidth = (int) pf.getImageableWidth();\r
-        int pheight = (int) pf.getImageableHeight();\r
-\r
-        int noPages = getHeight() / pheight;\r
-\r
-        if (pi > noPages)\r
-        {\r
-            return Printable.NO_SUCH_PAGE;\r
-        }\r
-\r
-        if (pwidth > getWidth())\r
-        {\r
-            pwidth = getWidth();\r
-        }\r
-\r
-        if (fitToWindow)\r
-        {\r
-            if (pheight > getHeight())\r
-            {\r
-                pheight = getHeight();\r
-            }\r
-\r
-            noPages = 0;\r
-        }\r
-        else\r
-        {\r
-            FontMetrics fm = pg.getFontMetrics(font);\r
-            int height = fm.getHeight() * nameHash.size();\r
-            pg.translate(0, -pi * pheight);\r
-            pg.setClip(0, pi * pheight, pwidth, (pi * pheight) + pheight);\r
-\r
-            // translate number of pages,\r
-            // height is screen size as this is the\r
-            // non overlapping text size\r
-            pheight = height;\r
-        }\r
-\r
-        draw(pg, pwidth, pheight);\r
-\r
-        return Printable.PAGE_EXISTS;\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param g DOCUMENT ME!\r
-     */\r
-    public void paintComponent(Graphics g)\r
-    {\r
-        super.paintComponent(g);\r
-        g.setFont(font);\r
-\r
-        if(tree==null)\r
-        {\r
-          g.drawString("Calculating tree....", 20, getHeight()/2);\r
-        }\r
-        else\r
-        {\r
-          fm = g.getFontMetrics(font);\r
-\r
-          if (nameHash.size() == 0)\r
-          {\r
-            repaint();\r
-          }\r
-\r
-          if (fitToWindow ||\r
-              (!fitToWindow &&\r
-               (scrollPane.getHeight() > ( (fm.getHeight() * nameHash.size()) +\r
-                                          offy))))\r
-          {\r
-            draw(g, scrollPane.getWidth(), scrollPane.getHeight());\r
-            setPreferredSize(null);\r
-          }\r
-          else\r
-          {\r
-            setPreferredSize(new Dimension(scrollPane.getWidth(),\r
-                                           fm.getHeight() * nameHash.size()));\r
-            draw(g, scrollPane.getWidth(), fm.getHeight() * nameHash.size());\r
-          }\r
-\r
-          scrollPane.revalidate();\r
-        }\r
-    }\r
-\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param fontSize DOCUMENT ME!\r
-     */\r
-    public void setFont(Font font)\r
-    {\r
-        this.font = font;\r
-        repaint();\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param g1 DOCUMENT ME!\r
-     * @param width DOCUMENT ME!\r
-     * @param height DOCUMENT ME!\r
-     */\r
-    public void draw(Graphics g1, int width, int height)\r
-    {\r
-        Graphics2D g2 = (Graphics2D) g1;\r
-        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,\r
-            RenderingHints.VALUE_ANTIALIAS_ON);\r
-        g2.setColor(Color.white);\r
-        g2.fillRect(0, 0, width, height);\r
-\r
-        g2.setFont(font);\r
-\r
-        offy = font.getSize()+10;\r
-\r
-        fm = g2.getFontMetrics(font);\r
-\r
-        labelLength = fm.stringWidth(longestName) + 20; //20 allows for scrollbar\r
-\r
-        float wscale = (float) (width - labelLength - (offx * 2)) / tree.getMaxHeight();\r
-\r
-        SequenceNode top = tree.getTopNode();\r
-\r
-        if (top.count == 0)\r
-        {\r
-            top.count = ((SequenceNode) top.left()).count +\r
-                ((SequenceNode) top.right()).count;\r
-        }\r
-\r
-        float chunk = (float) (height - (offy)) / top.count;\r
-\r
-        drawNode(g2, tree.getTopNode(), chunk, wscale, width, offx, offy);\r
-\r
-        if (threshold != 0)\r
-        {\r
-            if (av.getCurrentTree() == tree)\r
-            {\r
-                g2.setColor(Color.red);\r
-            }\r
-            else\r
-            {\r
-                g2.setColor(Color.gray);\r
-            }\r
-\r
-            int x = (int) ((threshold * (float) (getWidth() - labelLength -\r
-                (2 * offx))) + offx);\r
-\r
-            g2.drawLine(x, 0, x, getHeight());\r
-        }\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param e DOCUMENT ME!\r
-     */\r
-    public void mouseReleased(MouseEvent e)\r
-    {\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param e DOCUMENT ME!\r
-     */\r
-    public void mouseEntered(MouseEvent e)\r
-    {\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param e DOCUMENT ME!\r
-     */\r
-    public void mouseExited(MouseEvent e)\r
-    {\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param e DOCUMENT ME!\r
-     */\r
-    public void mouseClicked(MouseEvent evt)\r
-    {\r
-      if(highlightNode!=null)\r
-      {\r
-        if (SwingUtilities.isRightMouseButton(evt))\r
-        {\r
-          Color col = JColorChooser.showDialog(this, "Select Background Colour",\r
-                                               highlightNode.color);\r
-\r
-          setColor(highlightNode, col);\r
-        }\r
-        else\r
-        if(evt.getClickCount()>1)\r
-        {\r
-          tree.swapNodes(highlightNode);\r
-          tree.reCount(tree.getTopNode());\r
-          tree.findHeight(tree.getTopNode());\r
-        }\r
-        else\r
-        {\r
-          Vector leaves = new Vector();\r
-          tree.findLeaves(highlightNode, leaves);\r
-\r
-          for (int i = 0; i < leaves.size(); i++)\r
-          {\r
-            SequenceI seq =\r
-                (SequenceI) ( (SequenceNode) leaves.elementAt(i)).element();\r
-            treeSelectionChanged(seq);\r
-          }\r
-        }\r
-\r
-        PaintRefresher.Refresh(this, av.getSequenceSetId());\r
-        repaint();\r
-      }\r
-    }\r
-\r
-\r
-\r
-    public void mouseMoved(MouseEvent evt)\r
-    {\r
-      av.setCurrentTree(tree);\r
-\r
-      Object ob = findElement(evt.getX(), evt.getY());\r
-\r
-      if (ob instanceof SequenceNode)\r
-      {\r
-        highlightNode = (SequenceNode) ob;\r
-        this.setToolTipText(\r
-            "<html>Left click to select leaves"\r
-            + "<br>Double-click to invert leaves"\r
-            + "<br>Right click to change colour");\r
-        repaint();\r
-\r
-      }\r
-      else\r
-      {\r
-        if (highlightNode != null)\r
-        {\r
-          highlightNode = null;\r
-          setToolTipText(null);\r
-          repaint();\r
-        }\r
-      }\r
-  }\r
-\r
-    public void mouseDragged(MouseEvent ect)\r
-    {}\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param e DOCUMENT ME!\r
-     */\r
-    public void mousePressed(MouseEvent e)\r
-    {\r
-        av.setCurrentTree(tree);\r
-\r
-        int x = e.getX();\r
-        int y = e.getY();\r
-\r
-        Object ob = findElement(x, y);\r
-\r
-        if (ob instanceof SequenceI)\r
-        {\r
-          treeSelectionChanged( (Sequence) ob);\r
-          PaintRefresher.Refresh(this, ap.av.getSequenceSetId());\r
-          repaint();\r
-          return;\r
-        }\r
-        else if( !(ob instanceof SequenceNode) )\r
-        {\r
-            // Find threshold\r
-            if (tree.getMaxHeight() != 0)\r
-            {\r
-                threshold = (float) (x - offx) / (float) (getWidth() -\r
-                    labelLength - (2 * offx));\r
-\r
-                tree.getGroups().removeAllElements();\r
-                tree.groupNodes(tree.getTopNode(), threshold);\r
-                setColor(tree.getTopNode(), Color.black);\r
-\r
-                av.setSelectionGroup(null);\r
-                av.alignment.deleteAllGroups();\r
-                av.sequenceColours=null;\r
-\r
-                colourGroups();\r
-              }\r
-\r
-              PaintRefresher.Refresh(this, ap.av.getSequenceSetId());\r
-              repaint();\r
-        }\r
-\r
-\r
-    }\r
-\r
-    void colourGroups()\r
-    {\r
-      for (int i = 0; i < tree.getGroups().size(); i++)\r
-      {\r
-        Color col = new Color( (int) (Math.random() * 255),\r
-                              (int) (Math.random() * 255),\r
-                              (int) (Math.random() * 255));\r
-        setColor( (SequenceNode) tree.getGroups().elementAt(i),\r
-                 col.brighter());\r
-\r
-        Vector l = tree.findLeaves( (SequenceNode) tree.getGroups()\r
-                                   .elementAt(i),\r
-                                   new Vector());\r
-\r
-        Vector sequences = new Vector();\r
-\r
-        for (int j = 0; j < l.size(); j++)\r
-        {\r
-          SequenceI s1 = (SequenceI) ( (SequenceNode) l.elementAt(j)).element();\r
-\r
-          if (!sequences.contains(s1))\r
-          {\r
-            sequences.addElement(s1);\r
-          }\r
-        }\r
-\r
-        ColourSchemeI cs = null;\r
-\r
-        if (av.getGlobalColourScheme() != null)\r
-        {\r
-          if (av.getGlobalColourScheme() instanceof UserColourScheme)\r
-          {\r
-            cs = new UserColourScheme(\r
-                ( (UserColourScheme) av.getGlobalColourScheme()).getColours());\r
-\r
-          }\r
-          else\r
-            cs = ColourSchemeProperty.getColour(sequences,\r
-                                                av.alignment.getWidth(),\r
-                                                ColourSchemeProperty.\r
-                                                getColourName(\r
-                                                    av.getGlobalColourScheme()));\r
-\r
-          cs.setThreshold(av.getGlobalColourScheme().getThreshold(),\r
-                          av.getIgnoreGapsConsensus());\r
-        }\r
-\r
-        SequenceGroup sg = new SequenceGroup(sequences,\r
-                                             "TreeGroup", cs, true, true, false,\r
-                                             0,\r
-                                             av.alignment.getWidth() - 1);\r
-\r
-        if (av.getGlobalColourScheme() != null\r
-            && av.getGlobalColourScheme().conservationApplied())\r
-        {\r
-          Conservation c = new Conservation("Group",\r
-                                            ResidueProperties.propHash, 3,\r
-                                            sg.getSequences(false),\r
-                                            sg.getStartRes(), sg.getEndRes());\r
-\r
-          c.calculate();\r
-          c.verdict(false, av.ConsPercGaps);\r
-          sg.cs.setConservation(c);\r
-        }\r
-\r
-        av.alignment.addGroup(sg);\r
-      }\r
-\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param state DOCUMENT ME!\r
-     */\r
-    public void setShowDistances(boolean state)\r
-    {\r
-        this.showDistances = state;\r
-        repaint();\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param state DOCUMENT ME!\r
-     */\r
-    public void setShowBootstrap(boolean state)\r
-    {\r
-        this.showBootstrap = state;\r
-        repaint();\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param state DOCUMENT ME!\r
-     */\r
-    public void setMarkPlaceholders(boolean state)\r
-    {\r
-        this.markPlaceholders = state;\r
-        repaint();\r
-    }\r
-}\r
+/*
+ * Jalview - A Sequence Alignment Editor and Viewer
+ * Copyright (C) 2006 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+package jalview.gui;
+
+import jalview.analysis.*;
+
+import jalview.datamodel.*;
+
+import jalview.schemes.*;
+
+import jalview.util.*;
+
+import java.awt.*;
+import java.awt.event.*;
+import java.awt.print.*;
+
+import java.util.*;
+
+import javax.swing.*;
+
+
+/**
+ * DOCUMENT ME!
+ *
+ * @author $author$
+ * @version $Revision$
+ */
+public class TreeCanvas extends JPanel implements MouseListener, Runnable,
+    Printable, MouseMotionListener
+{
+    /** DOCUMENT ME!! */
+    public static final String PLACEHOLDER = " * ";
+    NJTree tree;
+    JScrollPane scrollPane;
+    AlignViewport av;
+    AlignmentPanel ap;
+    Font font;
+    FontMetrics fm;
+    boolean fitToWindow = true;
+    boolean showDistances = false;
+    boolean showBootstrap = false;
+    boolean markPlaceholders = false;
+    int offx = 20;
+    int offy;
+    float threshold;
+    String longestName;
+    int labelLength = -1;
+
+    Hashtable nameHash = new Hashtable();
+    Hashtable nodeHash = new Hashtable();
+    SequenceNode highlightNode;
+
+    /**
+     * Creates a new TreeCanvas object.
+     *
+     * @param av DOCUMENT ME!
+     * @param tree DOCUMENT ME!
+     * @param scroller DOCUMENT ME!
+     * @param label DOCUMENT ME!
+     */
+    public TreeCanvas(AlignmentPanel ap, JScrollPane scroller)
+    {
+        this.av = ap.av;
+        this.ap = ap;
+        font = av.getFont();
+        scrollPane = scroller;
+        addMouseListener(this);
+        addMouseMotionListener(this);
+        PaintRefresher.Register(this, ap.av.getSequenceSetId());
+        ToolTipManager.sharedInstance().registerComponent(this);
+    }
+
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param sequence DOCUMENT ME!
+     */
+    public void treeSelectionChanged(SequenceI sequence)
+    {
+        SequenceGroup selected = av.getSelectionGroup();
+
+        if (selected == null)
+        {
+            selected = new SequenceGroup();
+            av.setSelectionGroup(selected);
+        }
+
+        selected.setEndRes(av.alignment.getWidth()-1);
+        selected.addOrRemove(sequence, true);
+    }
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param tree DOCUMENT ME!
+     */
+    public void setTree(NJTree tree)
+    {
+        this.tree = tree;
+        tree.findHeight(tree.getTopNode());
+
+        // Now have to calculate longest name based on the leaves
+        Vector leaves = tree.findLeaves(tree.getTopNode(), new Vector());
+        boolean has_placeholders = false;
+        longestName = "";
+
+        for (int i = 0; i < leaves.size(); i++)
+        {
+          SequenceNode lf = (SequenceNode) leaves.elementAt(i);
+
+          if (lf.isPlaceholder())
+          {
+            has_placeholders = true;
+          }
+
+          if (longestName.length() < ( (Sequence) lf.element()).getName()
+              .length())
+          {
+            longestName = TreeCanvas.PLACEHOLDER +
+                ( (Sequence) lf.element()).getName();
+          }
+        }
+
+        setMarkPlaceholders(has_placeholders);
+    }
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param g DOCUMENT ME!
+     * @param node DOCUMENT ME!
+     * @param chunk DOCUMENT ME!
+     * @param scale DOCUMENT ME!
+     * @param width DOCUMENT ME!
+     * @param offx DOCUMENT ME!
+     * @param offy DOCUMENT ME!
+     */
+    public void drawNode(Graphics g, SequenceNode node, float chunk,
+        float scale, int width, int offx, int offy)
+    {
+        if (node == null)
+        {
+            return;
+        }
+
+        if ((node.left() == null) && (node.right() == null))
+        {
+            // Drawing leaf node
+            float height = node.height;
+            float dist = node.dist;
+
+            int xstart = (int) ((height - dist) * scale) + offx;
+            int xend = (int) (height * scale) + offx;
+
+            int ypos = (int) (node.ycount * chunk) + offy;
+
+            if (node.element() instanceof SequenceI)
+            {
+              SequenceI seq = (SequenceI)((SequenceNode) node).element();
+
+                if (av.getSequenceColour(seq) == Color.white)
+                {
+                    g.setColor(Color.black);
+                }
+                else
+                {
+                    g.setColor(av.getSequenceColour(seq).darker());
+                }
+            }
+            else
+            {
+                g.setColor(Color.black);
+            }
+
+            // Draw horizontal line
+            g.drawLine(xstart, ypos, xend, ypos);
+
+            String nodeLabel = "";
+
+            if (showDistances && (node.dist > 0))
+            {
+                nodeLabel = new Format("%-.2f").form(node.dist);
+            }
+
+            if (showBootstrap)
+            {
+                if (showDistances)
+                {
+                    nodeLabel = nodeLabel + " : ";
+                }
+
+                nodeLabel = nodeLabel + String.valueOf(node.getBootstrap());
+            }
+
+            if (!nodeLabel.equals(""))
+            {
+                g.drawString(nodeLabel, xstart+2, ypos - 2);
+            }
+
+            String name = (markPlaceholders && node.isPlaceholder())
+                ? (PLACEHOLDER + node.getName()) : node.getName();
+
+            int charWidth = fm.stringWidth(name) + 3;
+            int charHeight = font.getSize();
+
+            Rectangle rect = new Rectangle(xend+10, ypos-charHeight/2,
+                    charWidth, charHeight);
+
+            nameHash.put((SequenceI) node.element(), rect);
+
+            // Colour selected leaves differently
+            SequenceGroup selected = av.getSelectionGroup();
+
+            if ((selected != null) &&
+                    selected.getSequences(false).contains((SequenceI) node.element()))
+            {
+                g.setColor(Color.gray);
+
+                g.fillRect(xend + 10, ypos-charHeight/2, charWidth,
+                    charHeight);
+                g.setColor(Color.white);
+            }
+
+            g.drawString(name, xend + 10, ypos+fm.getDescent());
+            g.setColor(Color.black);
+        }
+        else
+        {
+            drawNode(g, (SequenceNode) node.left(), chunk, scale, width, offx,
+                offy);
+            drawNode(g, (SequenceNode) node.right(), chunk, scale, width, offx,
+                offy);
+
+            float height = node.height;
+            float dist = node.dist;
+
+            int xstart = (int) ((height - dist) * scale) + offx;
+            int xend = (int) (height * scale) + offx;
+            int ypos = (int) (node.ycount * chunk) + offy;
+
+            g.setColor(((SequenceNode) node).color.darker());
+
+            // Draw horizontal line
+            g.drawLine(xstart, ypos, xend, ypos);
+            if (node == highlightNode)
+              g.fillRect(xend - 3, ypos - 3, 6, 6);
+            else
+              g.fillRect(xend - 2, ypos - 2, 4, 4);
+
+            int ystart = (int) (((SequenceNode) node.left()).ycount * chunk) +
+                offy;
+            int yend = (int) (((SequenceNode) node.right()).ycount * chunk) +
+                offy;
+
+            Rectangle pos = new Rectangle(xend - 2, ypos - 2, 5, 5);
+            nodeHash.put(node, pos);
+
+            g.drawLine((int) (height * scale) + offx, ystart,
+                (int) (height * scale) + offx, yend);
+
+            if (showDistances && (node.dist > 0))
+            {
+                g.drawString(new Format("%-.2f").form(node.dist).trim(), xstart+2,
+                    ypos - 2);
+            }
+        }
+    }
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param x DOCUMENT ME!
+     * @param y DOCUMENT ME!
+     *
+     * @return DOCUMENT ME!
+     */
+    public Object findElement(int x, int y)
+    {
+        Enumeration keys = nameHash.keys();
+
+        while (keys.hasMoreElements())
+        {
+            Object ob = keys.nextElement();
+            Rectangle rect = (Rectangle) nameHash.get(ob);
+
+            if ((x >= rect.x) && (x <= (rect.x + rect.width)) && (y >= rect.y) &&
+                    (y <= (rect.y + rect.height)))
+            {
+                return ob;
+            }
+        }
+
+        keys = nodeHash.keys();
+
+        while (keys.hasMoreElements())
+        {
+            Object ob = keys.nextElement();
+            Rectangle rect = (Rectangle) nodeHash.get(ob);
+
+            if ((x >= rect.x) && (x <= (rect.x + rect.width)) && (y >= rect.y) &&
+                    (y <= (rect.y + rect.height)))
+            {
+                return ob;
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param pickBox DOCUMENT ME!
+     */
+    public void pickNodes(Rectangle pickBox)
+    {
+        int width = getWidth();
+        int height = getHeight();
+
+        SequenceNode top = tree.getTopNode();
+
+        float wscale = (float) ((width * .8) - (offx * 2)) / tree.getMaxHeight();
+
+        if (top.count == 0)
+        {
+            top.count = ((SequenceNode) top.left()).count +
+                ((SequenceNode) top.right()).count;
+        }
+
+        float chunk = (float) (height - (offy)) / top.count;
+
+        pickNode(pickBox, top, chunk, wscale, width, offx, offy);
+    }
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param pickBox DOCUMENT ME!
+     * @param node DOCUMENT ME!
+     * @param chunk DOCUMENT ME!
+     * @param scale DOCUMENT ME!
+     * @param width DOCUMENT ME!
+     * @param offx DOCUMENT ME!
+     * @param offy DOCUMENT ME!
+     */
+    public void pickNode(Rectangle pickBox, SequenceNode node, float chunk,
+        float scale, int width, int offx, int offy)
+    {
+        if (node == null)
+        {
+            return;
+        }
+
+        if ((node.left() == null) && (node.right() == null))
+        {
+            float height = node.height;
+            float dist = node.dist;
+
+            int xstart = (int) ((height - dist) * scale) + offx;
+            int xend = (int) (height * scale) + offx;
+
+            int ypos = (int) (node.ycount * chunk) + offy;
+
+            if (pickBox.contains(new Point(xend, ypos)))
+            {
+                if (node.element() instanceof SequenceI)
+                {
+                    SequenceI seq = (SequenceI) node.element();
+                    SequenceGroup sg = av.getSelectionGroup();
+
+                    if (sg != null)
+                    {
+                        sg.addOrRemove(seq, true);
+                    }
+                }
+            }
+        }
+        else
+        {
+            pickNode(pickBox, (SequenceNode) node.left(), chunk, scale, width,
+                offx, offy);
+            pickNode(pickBox, (SequenceNode) node.right(), chunk, scale, width,
+                offx, offy);
+        }
+    }
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param node DOCUMENT ME!
+     * @param c DOCUMENT ME!
+     */
+    public void setColor(SequenceNode node, Color c)
+    {
+        if (node == null)
+        {
+            return;
+        }
+
+        if ((node.left() == null) && (node.right() == null))
+        {
+            node.color = c;
+
+            if (node.element() instanceof SequenceI)
+            {
+              av.setSequenceColour((SequenceI) node.element(), c);
+            }
+        }
+        else
+        {
+            node.color = c;
+            setColor((SequenceNode) node.left(), c);
+            setColor((SequenceNode) node.right(), c);
+        }
+    }
+
+    /**
+     * DOCUMENT ME!
+     */
+    void startPrinting()
+    {
+        Thread thread = new Thread(this);
+        thread.start();
+    }
+
+    // put printing in a thread to avoid painting problems
+    public void run()
+    {
+        PrinterJob printJob = PrinterJob.getPrinterJob();
+        PageFormat pf = printJob.pageDialog(printJob.defaultPage());
+
+        printJob.setPrintable(this, pf);
+
+        if (printJob.printDialog())
+        {
+            try
+            {
+                printJob.print();
+            }
+            catch (Exception PrintException)
+            {
+                PrintException.printStackTrace();
+            }
+        }
+    }
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param pg DOCUMENT ME!
+     * @param pf DOCUMENT ME!
+     * @param pi DOCUMENT ME!
+     *
+     * @return DOCUMENT ME!
+     *
+     * @throws PrinterException DOCUMENT ME!
+     */
+    public int print(Graphics pg, PageFormat pf, int pi)
+        throws PrinterException
+    {
+        pg.setFont(font);
+        pg.translate((int) pf.getImageableX(), (int) pf.getImageableY());
+
+        int pwidth = (int) pf.getImageableWidth();
+        int pheight = (int) pf.getImageableHeight();
+
+        int noPages = getHeight() / pheight;
+
+        if (pi > noPages)
+        {
+            return Printable.NO_SUCH_PAGE;
+        }
+
+        if (pwidth > getWidth())
+        {
+            pwidth = getWidth();
+        }
+
+        if (fitToWindow)
+        {
+            if (pheight > getHeight())
+            {
+                pheight = getHeight();
+            }
+
+            noPages = 0;
+        }
+        else
+        {
+            FontMetrics fm = pg.getFontMetrics(font);
+            int height = fm.getHeight() * nameHash.size();
+            pg.translate(0, -pi * pheight);
+            pg.setClip(0, pi * pheight, pwidth, (pi * pheight) + pheight);
+
+            // translate number of pages,
+            // height is screen size as this is the
+            // non overlapping text size
+            pheight = height;
+        }
+
+        draw(pg, pwidth, pheight);
+
+        return Printable.PAGE_EXISTS;
+    }
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param g DOCUMENT ME!
+     */
+    public void paintComponent(Graphics g)
+    {
+        super.paintComponent(g);
+        g.setFont(font);
+
+        if(tree==null)
+        {
+          g.drawString("Calculating tree....", 20, getHeight()/2);
+        }
+        else
+        {
+          fm = g.getFontMetrics(font);
+
+          if (nameHash.size() == 0)
+          {
+            repaint();
+          }
+
+          if (fitToWindow ||
+              (!fitToWindow &&
+               (scrollPane.getHeight() > ( (fm.getHeight() * nameHash.size()) +
+                                          offy))))
+          {
+            draw(g, scrollPane.getWidth(), scrollPane.getHeight());
+            setPreferredSize(null);
+          }
+          else
+          {
+            setPreferredSize(new Dimension(scrollPane.getWidth(),
+                                           fm.getHeight() * nameHash.size()));
+            draw(g, scrollPane.getWidth(), fm.getHeight() * nameHash.size());
+          }
+
+          scrollPane.revalidate();
+        }
+    }
+
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param fontSize DOCUMENT ME!
+     */
+    public void setFont(Font font)
+    {
+        this.font = font;
+        repaint();
+    }
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param g1 DOCUMENT ME!
+     * @param width DOCUMENT ME!
+     * @param height DOCUMENT ME!
+     */
+    public void draw(Graphics g1, int width, int height)
+    {
+        Graphics2D g2 = (Graphics2D) g1;
+        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
+            RenderingHints.VALUE_ANTIALIAS_ON);
+        g2.setColor(Color.white);
+        g2.fillRect(0, 0, width, height);
+
+        g2.setFont(font);
+
+        offy = font.getSize()+10;
+
+        fm = g2.getFontMetrics(font);
+
+        labelLength = fm.stringWidth(longestName) + 20; //20 allows for scrollbar
+
+        float wscale = (float) (width - labelLength - (offx * 2)) / tree.getMaxHeight();
+
+        SequenceNode top = tree.getTopNode();
+
+        if (top.count == 0)
+        {
+            top.count = ((SequenceNode) top.left()).count +
+                ((SequenceNode) top.right()).count;
+        }
+
+        float chunk = (float) (height - (offy)) / top.count;
+
+        drawNode(g2, tree.getTopNode(), chunk, wscale, width, offx, offy);
+
+        if (threshold != 0)
+        {
+            if (av.getCurrentTree() == tree)
+            {
+                g2.setColor(Color.red);
+            }
+            else
+            {
+                g2.setColor(Color.gray);
+            }
+
+            int x = (int) ((threshold * (float) (getWidth() - labelLength -
+                (2 * offx))) + offx);
+
+            g2.drawLine(x, 0, x, getHeight());
+        }
+    }
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param e DOCUMENT ME!
+     */
+    public void mouseReleased(MouseEvent e)
+    {
+    }
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param e DOCUMENT ME!
+     */
+    public void mouseEntered(MouseEvent e)
+    {
+    }
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param e DOCUMENT ME!
+     */
+    public void mouseExited(MouseEvent e)
+    {
+    }
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param e DOCUMENT ME!
+     */
+    public void mouseClicked(MouseEvent evt)
+    {
+      if(highlightNode!=null)
+      {
+        if (SwingUtilities.isRightMouseButton(evt))
+        {
+          Color col = JColorChooser.showDialog(this, "Select Sub-Tree Colour",
+                                               highlightNode.color);
+
+          setColor(highlightNode, col);
+        }
+        else
+        if(evt.getClickCount()>1)
+        {
+          tree.swapNodes(highlightNode);
+          tree.reCount(tree.getTopNode());
+          tree.findHeight(tree.getTopNode());
+        }
+        else
+        {
+          Vector leaves = new Vector();
+          tree.findLeaves(highlightNode, leaves);
+
+          for (int i = 0; i < leaves.size(); i++)
+          {
+            SequenceI seq =
+                (SequenceI) ( (SequenceNode) leaves.elementAt(i)).element();
+            treeSelectionChanged(seq);
+          }
+        }
+
+        PaintRefresher.Refresh(this, av.getSequenceSetId());
+        repaint();
+      }
+    }
+
+
+
+    public void mouseMoved(MouseEvent evt)
+    {
+      av.setCurrentTree(tree);
+
+      Object ob = findElement(evt.getX(), evt.getY());
+
+      if (ob instanceof SequenceNode)
+      {
+        highlightNode = (SequenceNode) ob;
+        this.setToolTipText(
+            "<html>Left click to select leaves"
+            + "<br>Double-click to invert leaves"
+            + "<br>Right click to change colour");
+        repaint();
+
+      }
+      else
+      {
+        if (highlightNode != null)
+        {
+          highlightNode = null;
+          setToolTipText(null);
+          repaint();
+        }
+      }
+  }
+
+    public void mouseDragged(MouseEvent ect)
+    {}
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param e DOCUMENT ME!
+     */
+    public void mousePressed(MouseEvent e)
+    {
+        av.setCurrentTree(tree);
+
+        int x = e.getX();
+        int y = e.getY();
+
+        Object ob = findElement(x, y);
+
+        if (ob instanceof SequenceI)
+        {
+          treeSelectionChanged( (Sequence) ob);
+          PaintRefresher.Refresh(this, ap.av.getSequenceSetId());
+          repaint();
+          return;
+        }
+        else if( !(ob instanceof SequenceNode) )
+        {
+            // Find threshold
+            if (tree.getMaxHeight() != 0)
+            {
+                threshold = (float) (x - offx) / (float) (getWidth() -
+                    labelLength - (2 * offx));
+
+                tree.getGroups().removeAllElements();
+                tree.groupNodes(tree.getTopNode(), threshold);
+                setColor(tree.getTopNode(), Color.black);
+
+                av.setSelectionGroup(null);
+                av.alignment.deleteAllGroups();
+                av.sequenceColours=null;
+
+                colourGroups();
+              }
+
+              PaintRefresher.Refresh(this, ap.av.getSequenceSetId());
+              repaint();
+        }
+
+
+    }
+
+    void colourGroups()
+    {
+      for (int i = 0; i < tree.getGroups().size(); i++)
+      {
+        Color col = new Color( (int) (Math.random() * 255),
+                              (int) (Math.random() * 255),
+                              (int) (Math.random() * 255));
+        setColor( (SequenceNode) tree.getGroups().elementAt(i),
+                 col.brighter());
+
+        Vector l = tree.findLeaves( (SequenceNode) tree.getGroups()
+                                   .elementAt(i),
+                                   new Vector());
+
+        Vector sequences = new Vector();
+
+        for (int j = 0; j < l.size(); j++)
+        {
+          SequenceI s1 = (SequenceI) ( (SequenceNode) l.elementAt(j)).element();
+
+          if (!sequences.contains(s1))
+          {
+            sequences.addElement(s1);
+          }
+        }
+
+        ColourSchemeI cs = null;
+
+        if (av.getGlobalColourScheme() != null)
+        {
+          if (av.getGlobalColourScheme() instanceof UserColourScheme)
+          {
+            cs = new UserColourScheme(
+                ( (UserColourScheme) av.getGlobalColourScheme()).getColours());
+
+          }
+          else
+            cs = ColourSchemeProperty.getColour(sequences,
+                                                av.alignment.getWidth(),
+                                                ColourSchemeProperty.
+                                                getColourName(
+                                                    av.getGlobalColourScheme()));
+
+          cs.setThreshold(av.getGlobalColourScheme().getThreshold(),
+                          av.getIgnoreGapsConsensus());
+        }
+
+        SequenceGroup sg = new SequenceGroup(sequences,
+                                             "TreeGroup", cs, true, true, false,
+                                             0,
+                                             av.alignment.getWidth() - 1);
+
+        if (av.getGlobalColourScheme() != null
+            && av.getGlobalColourScheme().conservationApplied())
+        {
+          Conservation c = new Conservation("Group",
+                                            ResidueProperties.propHash, 3,
+                                            sg.getSequences(false),
+                                            sg.getStartRes(), sg.getEndRes());
+
+          c.calculate();
+          c.verdict(false, av.ConsPercGaps);
+          sg.cs.setConservation(c);
+        }
+
+        av.alignment.addGroup(sg);
+      }
+
+    }
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param state DOCUMENT ME!
+     */
+    public void setShowDistances(boolean state)
+    {
+        this.showDistances = state;
+        repaint();
+    }
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param state DOCUMENT ME!
+     */
+    public void setShowBootstrap(boolean state)
+    {
+        this.showBootstrap = state;
+        repaint();
+    }
+
+    /**
+     * DOCUMENT ME!
+     *
+     * @param state DOCUMENT ME!
+     */
+    public void setMarkPlaceholders(boolean state)
+    {
+        this.markPlaceholders = state;
+        repaint();
+    }
+}