JAL-3438 spotless for 2.11.2.0
[jalview.git] / src / jalview / gui / UserDefinedColours.java
index 8deec8e..1836e33 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.datamodel.*;\r
-\r
-import jalview.io.*;\r
-\r
-import jalview.jbgui.*;\r
-\r
-import jalview.schemes.*;\r
-\r
-import java.awt.*;\r
-import java.awt.event.*;\r
-\r
-import java.io.*;\r
-\r
-import java.util.*;\r
-\r
-import javax.swing.*;\r
-import javax.swing.event.*;\r
-\r
-\r
-\r
-/**\r
- * DOCUMENT ME!\r
- *\r
- * @author $author$\r
- * @version $Revision$\r
- */\r
-public class UserDefinedColours extends GUserDefinedColours\r
-    implements ChangeListener\r
-{\r
-    AlignmentPanel ap;\r
-    SequenceGroup seqGroup;\r
-    Vector selectedButtons;\r
-    ColourSchemeI oldColourScheme;\r
-    JInternalFrame frame;\r
-    MCview.PDBCanvas pdbcanvas;\r
-\r
-    /**\r
-     * Creates a new UserDefinedColours object.\r
-     *\r
-     * @param ap DOCUMENT ME!\r
-     * @param sg DOCUMENT ME!\r
-     */\r
-    public UserDefinedColours(AlignmentPanel ap, SequenceGroup sg)\r
-    {\r
-        super();\r
-        frame = new JInternalFrame();\r
-        frame.setContentPane(this);\r
-        Desktop.addInternalFrame(frame, "User Defined Colours", 720, 370, true);\r
-\r
-        if (System.getProperty("os.name").startsWith("Mac"))\r
-        {\r
-            frame.setSize(760, 370);\r
-        }\r
-\r
-        if (sg != null)\r
-        {\r
-            frame.setTitle(frame.getTitle() + " (" + sg.getName() + ")");\r
-        }\r
-\r
-        colorChooser.getSelectionModel().addChangeListener(this);\r
-\r
-        this.ap = ap;\r
-        seqGroup = sg;\r
-\r
-        if (seqGroup != null)\r
-        {\r
-            oldColourScheme = seqGroup.cs;\r
-        }\r
-        else\r
-        {\r
-            oldColourScheme = ap.av.getGlobalColourScheme();\r
-        }\r
-\r
-        if (oldColourScheme instanceof UserColourScheme)\r
-        {\r
-              schemeName.setText( ( (UserColourScheme) oldColourScheme).getName());\r
-        }\r
-        for (int i = 0; i < 20; i++)\r
-        {\r
-            makeButton(ResidueProperties.aa2Triplet.get(ResidueProperties.aa[i]) +\r
-                "", ResidueProperties.aa[i]);\r
-        }\r
-\r
-        makeButton("B", "B");\r
-        makeButton("Z", "Z");\r
-        makeButton("X", "X");\r
-        makeButton("Gap", "-");\r
-    }\r
-\r
-    public UserDefinedColours(MCview.PDBCanvas pdb, ColourSchemeI oldcs)\r
-    {\r
-        super();\r
-        frame = new JInternalFrame();\r
-        frame.setContentPane(this);\r
-        Desktop.addInternalFrame(frame, "User Defined Colours", 720, 370, true);\r
-        pdbcanvas = pdb;\r
-\r
-        if (System.getProperty("os.name").startsWith("Mac"))\r
-        {\r
-            frame.setSize(760, 370);\r
-        }\r
-\r
-        colorChooser.getSelectionModel().addChangeListener(this);\r
-\r
-        oldColourScheme = oldcs;\r
-\r
-        if (oldColourScheme instanceof UserColourScheme)\r
-        {\r
-              schemeName.setText( ( (UserColourScheme) oldColourScheme).getName());\r
-        }\r
-        for (int i = 0; i < 20; i++)\r
-        {\r
-            makeButton(ResidueProperties.aa2Triplet.get(ResidueProperties.aa[i]) +\r
-                "", ResidueProperties.aa[i]);\r
-        }\r
-\r
-        makeButton("B", "B");\r
-        makeButton("Z", "Z");\r
-        makeButton("X", "X");\r
-        makeButton("Gap", "-");\r
-    }\r
-\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param evt DOCUMENT ME!\r
-     */\r
-    public void stateChanged(ChangeEvent evt)\r
-    {\r
-        if (selectedButtons != null)\r
-        {\r
-          JButton button;\r
-          for(int i=0; i<selectedButtons.size(); i++)\r
-          {\r
-            button = (JButton)selectedButtons.elementAt(i);\r
-            button.setBackground(colorChooser.getColor());\r
-            button.setForeground( button.getBackground().brighter().brighter().brighter());\r
-          }\r
-        }\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param e DOCUMENT ME!\r
-     */\r
-    public void colourButtonPressed(MouseEvent e)\r
-    {\r
-      if(selectedButtons == null)\r
-        selectedButtons = new Vector();\r
-\r
-      JButton pressed = (JButton) e.getSource();\r
-\r
-      if(e.isShiftDown())\r
-      {\r
-        JButton start, end = (JButton) e.getSource();\r
-        if(selectedButtons.size()>0)\r
-          start = (JButton)selectedButtons.elementAt(selectedButtons.size()-1);\r
-        else\r
-          start = (JButton) e.getSource();\r
-\r
-        int startIndex=0, endIndex=0;\r
-        for(int b=0; b<buttonPanel.getComponentCount(); b++)\r
-        {\r
-          if(buttonPanel.getComponent(b)==start)\r
-            startIndex = b;\r
-          if(buttonPanel.getComponent(b)==end)\r
-            endIndex = b;\r
-        }\r
-\r
-        if(startIndex > endIndex)\r
-        {\r
-          int temp = startIndex;\r
-          startIndex = endIndex;\r
-          endIndex = temp;\r
-        }\r
-\r
-        for(int b=startIndex; b<=endIndex; b++)\r
-        {\r
-          JButton button = (JButton)buttonPanel.getComponent(b);\r
-          if(!selectedButtons.contains(button))\r
-          {\r
-            button.setForeground(button.getBackground().brighter().brighter());\r
-            selectedButtons.add(button);\r
-          }\r
-        }\r
-      }\r
-      else if(!e.isControlDown())\r
-      {\r
-        for(int b=0; b<selectedButtons.size(); b++)\r
-        {\r
-          JButton button = (JButton)selectedButtons.elementAt(b);\r
-          button.setForeground(button.getBackground().darker().darker());\r
-        }\r
-        selectedButtons.clear();\r
-        pressed.setForeground( pressed.getBackground().brighter().brighter());\r
-        selectedButtons.addElement(pressed);\r
-\r
-      }\r
-      else if(e.isControlDown())\r
-      {\r
-        if(selectedButtons.contains(pressed))\r
-        {\r
-          pressed.setForeground(pressed.getBackground().darker().darker());\r
-          selectedButtons.remove(pressed);\r
-        }\r
-        else\r
-        {\r
-          pressed.setForeground( pressed.getBackground().brighter().brighter());\r
-          selectedButtons.addElement(pressed);\r
-        }\r
-      }\r
-\r
-      if(selectedButtons.size()>0)\r
-      colorChooser.setColor( ((JButton)selectedButtons.elementAt(0)).getBackground());\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param label DOCUMENT ME!\r
-     * @param aa DOCUMENT ME!\r
-     */\r
-    void makeButton(String label, String aa)\r
-    {\r
-        final JButton button = new JButton();\r
-        Color col = Color.white;\r
-\r
-        try\r
-        {\r
-            col = oldColourScheme.findColour(aa, -1);\r
-        }\r
-        catch (Exception ex)\r
-        {\r
-        //  ex.printStackTrace();\r
-        }\r
-\r
-        button.setBackground(col);\r
-        button.setText(label);\r
-        button.setForeground(col.darker().darker().darker());\r
-        button.setFont(new java.awt.Font("Verdana", 1, 10));\r
-        button.addMouseListener(new java.awt.event.MouseAdapter()\r
-            {\r
-                public void mouseClicked(MouseEvent e)\r
-                {\r
-                    colourButtonPressed(e);\r
-                }\r
-            });\r
-\r
-        buttonPanel.add(button, null);\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param e DOCUMENT ME!\r
-     */\r
-    protected void okButton_actionPerformed(ActionEvent e)\r
-    {\r
-        applyButton_actionPerformed(null);\r
-\r
-        try\r
-        {\r
-            frame.setClosed(true);\r
-        }\r
-        catch (Exception ex)\r
-        {\r
-        }\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param e DOCUMENT ME!\r
-     */\r
-    protected void applyButton_actionPerformed(ActionEvent e)\r
-    {\r
-        UserColourScheme ucs = getSchemeFromGUI();\r
-        ucs.setName(schemeName.getText());\r
-\r
-        if (seqGroup != null)\r
-        {\r
-            seqGroup.cs = ucs;\r
-            ap.repaint();\r
-        }\r
-        else if(ap!=null)\r
-        {\r
-            ap.alignFrame.changeColour(ucs);\r
-        }\r
-        else if(pdbcanvas!=null)\r
-        {\r
-          pdbcanvas.pdb.setColours(ucs);\r
-          pdbcanvas.updateSeqColours();\r
-        }\r
-    }\r
-\r
-    UserColourScheme getSchemeFromGUI()\r
-    {\r
-      Color[] newColours = new Color[24];\r
-\r
-      for (int i = 0; i < 24; i++)\r
-      {\r
-        JButton button = (JButton) buttonPanel.getComponent(i);\r
-        newColours[i] = button.getBackground();\r
-      }\r
-\r
-      UserColourScheme ucs = new UserColourScheme(newColours);\r
-      if(ap!=null)\r
-        ucs.setThreshold(0, ap.av.getIgnoreGapsConsensus());\r
-\r
-\r
-      return ucs;\r
-    }\r
-\r
-\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param e DOCUMENT ME!\r
-     */\r
-    protected void loadbutton_actionPerformed(ActionEvent e)\r
-    {\r
-        JalviewFileChooser chooser = new JalviewFileChooser(jalview.bin.Cache.getProperty(\r
-                    "LAST_DIRECTORY"), new String[] { "jc" },\r
-                new String[] { "Jalview User Colours" }, "Jalview User Colours");\r
-        chooser.setFileView(new jalview.io.JalviewFileView());\r
-        chooser.setDialogTitle("Load colour scheme");\r
-        chooser.setToolTipText("Load");\r
-\r
-        int value = chooser.showOpenDialog(this);\r
-\r
-        if (value == JalviewFileChooser.APPROVE_OPTION)\r
-        {\r
-            File choice = chooser.getSelectedFile();\r
-            jalview.bin.Cache.setProperty("LAST_DIRECTORY", choice.getParent());\r
-            String defaultColours = jalview.bin.Cache.getDefault("USER_DEFINED_COLOURS",\r
-                choice.getPath());\r
-            if (defaultColours.indexOf(choice.getPath()) == -1)\r
-              defaultColours = defaultColours.concat("|").concat(choice.getPath());\r
-\r
-            jalview.bin.Cache.setProperty("USER_DEFINED_COLOURS", defaultColours);\r
-\r
-\r
-            UserColourScheme ucs = loadColours(choice.getAbsolutePath());\r
-            Color[] colors = ucs.getColours();\r
-            schemeName.setText(ucs.getName());\r
-\r
-            for (int i = 0; i < colors.length; i++)\r
-            {\r
-                JButton button = (JButton) buttonPanel.getComponent(i);\r
-                button.setBackground(colors[i]);\r
-            }\r
-        }\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @return DOCUMENT ME!\r
-     */\r
-    public static UserColourScheme loadDefaultColours()\r
-    {\r
-        UserColourScheme ret = null;\r
-\r
-        String colours = jalview.bin.Cache.getProperty("USER_DEFINED_COLOURS");\r
-        if ( colours != null )\r
-        {\r
-          if(colours.indexOf("|")>-1)\r
-            colours = colours.substring(0, colours.indexOf("|"));\r
-\r
-          ret = loadColours(colours);\r
-        }\r
-\r
-        if(ret == null)\r
-        {\r
-          Color[] newColours = new Color[24];\r
-          for (int i = 0; i < 24; i++)\r
-          {\r
-            newColours[i] = Color.white;\r
-          }\r
-          ret =  new UserColourScheme(newColours);\r
-        }\r
-\r
-        return ret;\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param file DOCUMENT ME!\r
-     *\r
-     * @return DOCUMENT ME!\r
-     */\r
-    static UserColourScheme loadColours(String file)\r
-    {\r
-         UserColourScheme ucs = null;\r
-         Color[]  newColours = null;\r
-\r
-        try\r
-        {\r
-            InputStreamReader in = new InputStreamReader(new FileInputStream(\r
-                        file), "UTF-8");\r
-\r
-              jalview.schemabinding.version2.JalviewUserColours jucs\r
-                  = new jalview.schemabinding.version2.JalviewUserColours();\r
-\r
-              org.exolab.castor.xml.Unmarshaller unmar\r
-                  = new org.exolab.castor.xml.Unmarshaller(jucs);\r
-              jucs = (jalview.schemabinding.version2.JalviewUserColours) unmar.unmarshal( in );\r
-\r
-              newColours = new Color[jucs.getColourCount()];\r
-\r
-            for (int i = 0; i < 24; i++)\r
-            {\r
-              newColours[i] = new Color(Integer.parseInt(\r
-                  jucs.getColour(i).getRGB(), 16));\r
-            }\r
-            if (newColours != null)\r
-            {\r
-              ucs = new UserColourScheme(newColours);\r
-              ucs.setName( jucs.getSchemeName() );\r
-            }\r
-\r
-        }\r
-        catch (Exception ex)\r
-        {\r
-            //Could be Archive Jalview format\r
-            try{\r
-              InputStreamReader in = new InputStreamReader(new FileInputStream(\r
-                  file), "UTF-8");\r
-\r
-              jalview.binding.JalviewUserColours jucs\r
-                  = new jalview.binding.JalviewUserColours();\r
-\r
-              jucs = (jalview.binding.JalviewUserColours) jucs.unmarshal(in);\r
-\r
-              newColours = new Color[jucs.getColourCount()];\r
-\r
-              for (int i = 0; i < 24; i++)\r
-              {\r
-                newColours[i] = new Color(Integer.parseInt(\r
-                    jucs.getColour(i).getRGB(), 16));\r
-              }\r
-              if (newColours != null)\r
-              {\r
-                ucs = new UserColourScheme(newColours);\r
-                ucs.setName(jucs.getSchemeName());\r
-              }\r
-            }catch(Exception ex2)\r
-            { ex2.printStackTrace(); }\r
-\r
-            if(newColours==null)\r
-              System.out.println("Error loading User ColourFile\n"+ex);\r
-        }\r
-\r
-       return ucs;\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param e DOCUMENT ME!\r
-     */\r
-    protected void savebutton_actionPerformed(ActionEvent e)\r
-    {\r
-      if(schemeName.getText().trim().length()<1)\r
-      {\r
-        JOptionPane.showInternalMessageDialog(Desktop.desktop,\r
-                                              "User colour scheme must have a name!",\r
-                                              "No name for colour scheme",\r
-                                              JOptionPane.WARNING_MESSAGE);\r
-        return;\r
-      }\r
-\r
-      if(userColourSchemes!=null && userColourSchemes.containsKey(schemeName.getText()) )\r
-      {\r
-        int reply = JOptionPane.showInternalConfirmDialog(Desktop.desktop, "Colour scheme "+schemeName.getText()+ " exists."\r
-            +"\nContinue saving colour scheme as "+schemeName.getText()+"?",\r
-           "Duplicate scheme name", JOptionPane.YES_NO_OPTION);\r
-        if(reply != JOptionPane.YES_OPTION)\r
-          return;\r
-\r
-         userColourSchemes.remove(schemeName.getText());\r
-      }\r
-        JalviewFileChooser chooser = new JalviewFileChooser(jalview.bin.Cache.getProperty(\r
-                    "LAST_DIRECTORY"), new String[] { "jc" },\r
-                new String[] { "Jalview User Colours" }, "Jalview User Colours");\r
-\r
-        chooser.setFileView(new jalview.io.JalviewFileView());\r
-        chooser.setDialogTitle("Save colour scheme");\r
-        chooser.setToolTipText("Save");\r
-\r
-        int value = chooser.showSaveDialog(this);\r
-\r
-        if (value == JalviewFileChooser.APPROVE_OPTION)\r
-        {\r
-            String choice = chooser.getSelectedFile().getPath();\r
-            String defaultColours = jalview.bin.Cache.getDefault("USER_DEFINED_COLOURS", choice);\r
-            if(defaultColours.indexOf(choice)==-1)\r
-            {\r
-              if(defaultColours.length()>0)\r
-                defaultColours = defaultColours.concat("|");\r
-              defaultColours = defaultColours.concat(choice);\r
-            }\r
-\r
-            userColourSchemes.put(schemeName.getText(), getSchemeFromGUI());\r
-\r
-            ap.alignFrame.updateUserColourMenu();\r
-\r
-            jalview.bin.Cache.setProperty("USER_DEFINED_COLOURS", defaultColours);\r
-\r
-            jalview.binding.JalviewUserColours ucs = new jalview.binding.JalviewUserColours();\r
-            ucs.setSchemeName(schemeName.getText());\r
-            try\r
-            {\r
-                PrintWriter out = new PrintWriter(new OutputStreamWriter(\r
-                            new FileOutputStream(choice), "UTF-8"));\r
-\r
-                for (int i = 0; i < 24; i++)\r
-                {\r
-                    JButton button = (JButton) buttonPanel.getComponent(i);\r
-                    jalview.binding.Colour col = new jalview.binding.Colour();\r
-                    col.setName(button.getText());\r
-                    col.setRGB(jalview.util.Format.getHexString(\r
-                            button.getBackground()));\r
-                    ucs.addColour(col);\r
-                }\r
-\r
-                ucs.marshal(out);\r
-                out.close();\r
-            }\r
-            catch (Exception ex)\r
-            {\r
-                ex.printStackTrace();\r
-            }\r
-        }\r
-    }\r
-\r
-    /**\r
-     * DOCUMENT ME!\r
-     *\r
-     * @param e DOCUMENT ME!\r
-     */\r
-    protected void cancelButton_actionPerformed(ActionEvent e)\r
-    {\r
-      if (ap != null)\r
-      {\r
-        if (seqGroup != null)\r
-        {\r
-          seqGroup.cs = oldColourScheme;\r
-        }\r
-        else if (ap != null)\r
-        {\r
-          ap.av.setGlobalColourScheme(oldColourScheme);\r
-        }\r
-        ap.repaint();\r
-      }\r
-\r
-      if(pdbcanvas!=null)\r
-      {\r
-        pdbcanvas.pdb.setColours(oldColourScheme);\r
-      }\r
-\r
-        try\r
-        {\r
-            frame.setClosed(true);\r
-        }\r
-        catch (Exception ex)\r
-        {\r
-        }\r
-    }\r
-\r
-\r
-    static Hashtable userColourSchemes;\r
-\r
-    public static Hashtable getUserColourSchemes()\r
-    {\r
-      return userColourSchemes;\r
-    }\r
-\r
-    public static void initUserColourSchemes(String files)\r
-    {\r
-      userColourSchemes = new Hashtable();\r
-\r
-      if(files==null || files.length()==0)\r
-        return;\r
-\r
-\r
-      // In case colours can't be loaded, we'll remove them\r
-      // from the default list here.\r
-      StringBuffer coloursFound = new StringBuffer();\r
-      StringTokenizer st = new StringTokenizer(files, "|");\r
-      while (st.hasMoreElements())\r
-      {\r
-        String file = st.nextToken();\r
-        try\r
-        {\r
-          UserColourScheme ucs = loadColours(file);\r
-          if (ucs != null)\r
-          {\r
-            if (coloursFound.length() > 0)\r
-              coloursFound.append("|");\r
-            coloursFound.append(file);\r
-            userColourSchemes.put(ucs.getName(), ucs);\r
-          }\r
-        }\r
-        catch (Exception ex)\r
-        {\r
-          System.out.println("Error loading User ColourFile\n" + ex);\r
-        }\r
-      }\r
-      if (!files.equals(coloursFound.toString()))\r
-      {\r
-        if (coloursFound.toString().length() > 1)\r
-          jalview.bin.Cache.setProperty("USER_DEFINED_COLOURS",\r
-                                        coloursFound.toString());\r
-        else\r
-          jalview.bin.Cache.applicationProperties.remove("USER_DEFINED_COLOURS");\r
-      }\r
-    }\r
-\r
-    public static void removeColourFromDefaults(String target)\r
-    {\r
-      // The only way to find colours by name is to load them in\r
-      // In case colours can't be loaded, we'll remove them\r
-      // from the default list here.\r
-\r
-      userColourSchemes = new Hashtable();\r
-\r
-      StringBuffer coloursFound = new StringBuffer();\r
-      StringTokenizer st = new StringTokenizer(\r
-           jalview.bin.Cache.getProperty("USER_DEFINED_COLOURS"), "|");\r
-\r
-      while (st.hasMoreElements())\r
-      {\r
-        String file = st.nextToken();\r
-        try\r
-        {\r
-          UserColourScheme ucs = loadColours(file);\r
-          if (ucs != null && !ucs.getName().equals(target))\r
-          {\r
-            if (coloursFound.length() > 0)\r
-              coloursFound.append("|");\r
-            coloursFound.append(file);\r
-            userColourSchemes.put(ucs.getName(), ucs);\r
-          }\r
-        }\r
-        catch (Exception ex)\r
-        {\r
-          System.out.println("Error loading User ColourFile\n" + ex);\r
-        }\r
-      }\r
-\r
-      if (coloursFound.toString().length() > 1)\r
-        jalview.bin.Cache.setProperty("USER_DEFINED_COLOURS", coloursFound.toString());\r
-      else\r
-        jalview.bin.Cache.applicationProperties.remove("USER_DEFINED_COLOURS");\r
-\r
-    }\r
-}\r
+/*
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
+ * 
+ * This file is part of Jalview.
+ * 
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License 
+ * as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *  
+ * Jalview is distributed in the hope that it will be useful, but 
+ * WITHOUT ANY WARRANTY; without even the implied warranty 
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+ * PURPOSE.  See the GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
+ */
+package jalview.gui;
+
+import java.util.Locale;
+
+import jalview.bin.Cache;
+import jalview.io.JalviewFileChooser;
+import jalview.io.JalviewFileView;
+import jalview.jbgui.GUserDefinedColours;
+import jalview.schemes.ColourSchemeI;
+import jalview.schemes.ColourSchemeLoader;
+import jalview.schemes.ColourSchemes;
+import jalview.schemes.ResidueProperties;
+import jalview.schemes.UserColourScheme;
+import jalview.util.ColorUtils;
+import jalview.util.Format;
+import jalview.util.MessageManager;
+import jalview.util.Platform;
+import jalview.xml.binding.jalview.JalviewUserColours;
+import jalview.xml.binding.jalview.JalviewUserColours.Colour;
+import jalview.xml.binding.jalview.ObjectFactory;
+
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.Insets;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.OutputStreamWriter;
+import java.io.PrintWriter;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.swing.JButton;
+import javax.swing.JInternalFrame;
+import javax.swing.event.ChangeEvent;
+import javax.swing.event.ChangeListener;
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.Marshaller;
+
+/**
+ * This panel allows the user to assign colours to Amino Acid residue codes, and
+ * save the colour scheme.
+ * 
+ * @author Andrew Waterhouse
+ * @author Mungo Carstairs
+ */
+public class UserDefinedColours extends GUserDefinedColours
+        implements ChangeListener
+{
+  private static final Font VERDANA_BOLD_10 = new Font("Verdana", Font.BOLD,
+          10);
+
+  public static final String USER_DEFINED_COLOURS = "USER_DEFINED_COLOURS";
+
+  private static final String LAST_DIRECTORY = "LAST_DIRECTORY";
+
+  private static final int MY_FRAME_HEIGHT = 440;
+
+  private static final int MY_FRAME_WIDTH = 810;
+
+  private static final int MY_FRAME_WIDTH_CASE_SENSITIVE = 970;
+
+  AlignmentPanel ap;
+
+  /*
+   * the colour scheme when the dialog was opened, or
+   * the scheme last saved to file
+   */
+  ColourSchemeI oldColourScheme;
+
+  /*
+   * flag is true if the colour scheme has been changed since the
+   * dialog was opened, or the changes last saved to file
+   */
+  boolean changedButNotSaved;
+
+  JInternalFrame frame;
+
+  List<JButton> upperCaseButtons;
+
+  List<JButton> lowerCaseButtons;
+
+  /**
+   * Creates and displays a new UserDefinedColours panel
+   * 
+   * @param alignPanel
+   */
+  public UserDefinedColours(AlignmentPanel alignPanel)
+  {
+    this();
+
+    lcaseColour.setEnabled(false);
+
+    this.ap = alignPanel;
+
+    oldColourScheme = alignPanel.av.getGlobalColourScheme();
+
+    if (oldColourScheme instanceof UserColourScheme)
+    {
+      schemeName.setText(oldColourScheme.getSchemeName());
+      if (((UserColourScheme) oldColourScheme)
+              .getLowerCaseColours() != null)
+      {
+        caseSensitive.setSelected(true);
+        lcaseColour.setEnabled(true);
+        resetButtonPanel(true);
+      }
+      else
+      {
+        resetButtonPanel(false);
+      }
+    }
+    else
+    {
+      resetButtonPanel(false);
+    }
+
+    showFrame();
+  }
+
+  UserDefinedColours()
+  {
+    super();
+    selectedButtons = new ArrayList<>();
+  }
+
+  void showFrame()
+  {
+    colorChooser.getSelectionModel().addChangeListener(this);
+    frame = new JInternalFrame();
+    frame.setContentPane(this);
+    Desktop.addInternalFrame(frame,
+            MessageManager.getString("label.user_defined_colours"),
+            MY_FRAME_WIDTH, MY_FRAME_HEIGHT, true);
+  }
+
+  /**
+   * Rebuilds the panel with coloured buttons for residues. If not case
+   * sensitive colours, show 3-letter amino acid code as button text. If case
+   * sensitive, just show the single letter code, in order to make space for the
+   * additional buttons.
+   * 
+   * @param isCaseSensitive
+   */
+  void resetButtonPanel(boolean isCaseSensitive)
+  {
+    buttonPanel.removeAll();
+
+    if (upperCaseButtons == null)
+    {
+      upperCaseButtons = new ArrayList<>();
+    }
+
+    for (int i = 0; i < 20; i++)
+    {
+      String label = isCaseSensitive ? ResidueProperties.aa[i]
+              : ResidueProperties.aa2Triplet.get(ResidueProperties.aa[i])
+                      .toString();
+      JButton button = makeButton(label, ResidueProperties.aa[i],
+              upperCaseButtons, i);
+      buttonPanel.add(button);
+    }
+
+    buttonPanel.add(makeButton("B", "B", upperCaseButtons, 20));
+    buttonPanel.add(makeButton("Z", "Z", upperCaseButtons, 21));
+    buttonPanel.add(makeButton("X", "X", upperCaseButtons, 22));
+    buttonPanel.add(makeButton("Gap", "-", upperCaseButtons, 23));
+
+    if (!isCaseSensitive)
+    {
+      gridLayout.setRows(6);
+      gridLayout.setColumns(4);
+    }
+    else
+    {
+      gridLayout.setRows(7);
+      int cols = 7;
+      gridLayout.setColumns(cols + 1);
+
+      if (lowerCaseButtons == null)
+      {
+        lowerCaseButtons = new ArrayList<>();
+      }
+
+      for (int i = 0; i < 20; i++)
+      {
+        int row = i / cols + 1;
+        int index = (row * cols) + i;
+        JButton button = makeButton(
+                ResidueProperties.aa[i].toLowerCase(Locale.ROOT),
+                ResidueProperties.aa[i].toLowerCase(Locale.ROOT),
+                lowerCaseButtons, i);
+
+        buttonPanel.add(button, index);
+      }
+    }
+
+    if (isCaseSensitive)
+    {
+      buttonPanel.add(makeButton("b", "b", lowerCaseButtons, 20));
+      buttonPanel.add(makeButton("z", "z", lowerCaseButtons, 21));
+      buttonPanel.add(makeButton("x", "x", lowerCaseButtons, 22));
+    }
+
+    // JAL-1360 widen the frame dynamically to accommodate case-sensitive AA
+    // codes
+    if (this.frame != null)
+    {
+      int newWidth = isCaseSensitive ? MY_FRAME_WIDTH_CASE_SENSITIVE
+              : MY_FRAME_WIDTH;
+      this.frame.setSize(newWidth, this.frame.getHeight());
+    }
+
+    buttonPanel.validate();
+    validate();
+  }
+
+  /**
+   * ChangeListener handler for when a colour is picked in the colour chooser.
+   * The action is to apply the colour to all selected buttons as their
+   * background colour. Foreground colour (text) is set to a lighter shade in
+   * order to highlight which buttons are selected. If 'Lower Case Colour' is
+   * active, then the colour is applied to all lower case buttons (as well as
+   * the Lower Case Colour button itself).
+   * 
+   * @param evt
+   */
+  @Override
+  public void stateChanged(ChangeEvent evt)
+  {
+    JButton button = null;
+    final Color newColour = colorChooser.getColor();
+    if (lcaseColour.isSelected())
+    {
+      selectedButtons.clear();
+      for (int i = 0; i < lowerCaseButtons.size(); i++)
+      {
+        button = lowerCaseButtons.get(i);
+        button.setBackground(newColour);
+        button.setForeground(
+                ColorUtils.brighterThan(button.getBackground()));
+      }
+    }
+    for (int i = 0; i < selectedButtons.size(); i++)
+    {
+      button = selectedButtons.get(i);
+      button.setBackground(newColour);
+      button.setForeground(ColorUtils.brighterThan(newColour));
+    }
+
+    changedButNotSaved = true;
+  }
+
+  /**
+   * Performs actions when a residue button is clicked. This manages the button
+   * selection set (highlighted by brighter foreground text).
+   * <p>
+   * On select button(s) with Ctrl/click or Shift/click: set button foreground
+   * text to brighter than background.
+   * <p>
+   * On unselect button(s) with Ctrl/click on selected, or click to release
+   * current selection: reset foreground text to darker than background.
+   * <p>
+   * Simple click: clear selection (resetting foreground to darker); set clicked
+   * button foreground to brighter
+   * <p>
+   * Finally, synchronize the colour chooser to the colour of the first button
+   * in the selected set.
+   * 
+   * @param e
+   */
+  public void colourButtonPressed(MouseEvent e)
+  {
+    JButton pressed = (JButton) e.getSource();
+
+    if (e.isShiftDown())
+    {
+      JButton start, end = (JButton) e.getSource();
+      if (selectedButtons.size() > 0)
+      {
+        start = selectedButtons.get(selectedButtons.size() - 1);
+      }
+      else
+      {
+        start = (JButton) e.getSource();
+      }
+
+      int startIndex = 0, endIndex = 0;
+      for (int b = 0; b < buttonPanel.getComponentCount(); b++)
+      {
+        if (buttonPanel.getComponent(b) == start)
+        {
+          startIndex = b;
+        }
+        if (buttonPanel.getComponent(b) == end)
+        {
+          endIndex = b;
+        }
+      }
+
+      if (startIndex > endIndex)
+      {
+        int temp = startIndex;
+        startIndex = endIndex;
+        endIndex = temp;
+      }
+
+      for (int b = startIndex; b <= endIndex; b++)
+      {
+        JButton button = (JButton) buttonPanel.getComponent(b);
+        if (!selectedButtons.contains(button))
+        {
+          button.setForeground(
+                  ColorUtils.brighterThan(button.getBackground()));
+          selectedButtons.add(button);
+        }
+      }
+    }
+    else if (!e.isControlDown())
+    {
+      for (int b = 0; b < selectedButtons.size(); b++)
+      {
+        JButton button = selectedButtons.get(b);
+        button.setForeground(ColorUtils.darkerThan(button.getBackground()));
+      }
+      selectedButtons.clear();
+      pressed.setForeground(
+              ColorUtils.brighterThan(pressed.getBackground()));
+      selectedButtons.add(pressed);
+
+    }
+    else if (e.isControlDown())
+    {
+      if (selectedButtons.contains(pressed))
+      {
+        pressed.setForeground(
+                ColorUtils.darkerThan(pressed.getBackground()));
+        selectedButtons.remove(pressed);
+      }
+      else
+      {
+        pressed.setForeground(
+                ColorUtils.brighterThan(pressed.getBackground()));
+        selectedButtons.add(pressed);
+      }
+    }
+
+    if (selectedButtons.size() > 0)
+    {
+      colorChooser.setColor((selectedButtons.get(0)).getBackground());
+    }
+  }
+
+  /**
+   * A helper method to update or make a colour button, whose background colour
+   * is the associated colour, and text colour a darker shade of the same. If
+   * the button is already in the list, then its text and margins are updated,
+   * if not then it is created and added. This method supports toggling between
+   * case-sensitive and case-insensitive button panels. The case-sensitive
+   * version has abbreviated button text in order to fit in more buttons.
+   * 
+   * @param label
+   * @param residue
+   * @param the
+   *          list of buttons
+   * @param buttonIndex
+   *          the button's position in the list
+   */
+  JButton makeButton(String label, String residue, List<JButton> buttons,
+          int buttonIndex)
+  {
+    final JButton button;
+    Color col;
+
+    if (buttonIndex < buttons.size())
+    {
+      button = buttons.get(buttonIndex);
+      col = button.getBackground();
+    }
+    else
+    {
+      button = new JButton();
+      button.addMouseListener(new MouseAdapter()
+      {
+        @Override
+        public void mouseClicked(MouseEvent e)
+        {
+          colourButtonPressed(e);
+        }
+      });
+
+      buttons.add(button);
+
+      /*
+       * make initial button colour that of the current colour scheme,
+       * if it is a simple per-residue colouring, else white
+       */
+      col = Color.white;
+      if (oldColourScheme != null && oldColourScheme.isSimple())
+      {
+        col = oldColourScheme.findColour(residue.charAt(0), 0, null, null,
+                0f);
+      }
+    }
+
+    if (caseSensitive.isSelected())
+    {
+      button.setMargin(new Insets(2, 2, 2, 2));
+    }
+    else
+    {
+      button.setMargin(new Insets(2, 14, 2, 14));
+    }
+
+    button.setOpaque(true); // required for the next line to have effect
+    button.setBackground(col);
+    button.setText(label);
+    button.setForeground(ColorUtils.darkerThan(col));
+    button.setFont(VERDANA_BOLD_10);
+
+    return button;
+  }
+
+  /**
+   * On 'OK', check that at least one colour has been assigned to a residue (and
+   * if not issue a warning), and apply the chosen colour scheme and close the
+   * panel.
+   */
+  @Override
+  protected void okButton_actionPerformed()
+  {
+    if (isNoSelectionMade())
+    {
+      JvOptionPane.showMessageDialog(Desktop.desktop,
+              MessageManager
+                      .getString("label.no_colour_selection_in_scheme"),
+              MessageManager.getString("label.no_colour_selection_warn"),
+              JvOptionPane.WARNING_MESSAGE);
+    }
+    else
+    {
+      /*
+       * OK is treated as 'apply colours and close'
+       */
+      applyButton_actionPerformed();
+
+      /*
+       * If editing a named colour scheme, warn if changes
+       * have not been saved
+       */
+      warnIfUnsavedChanges();
+
+      try
+      {
+        frame.setClosed(true);
+      } catch (Exception ex)
+      {
+      }
+    }
+  }
+
+  /**
+   * If we have made changes to an existing user defined colour scheme but not
+   * saved them, show a dialog with the option to save. If the user chooses to
+   * save, do so, else clear the colour scheme name to indicate a new colour
+   * scheme.
+   */
+  protected void warnIfUnsavedChanges()
+  {
+    // BH 2018 no warning in JavaScript TODO
+
+    if (!Platform.isJS() && changedButNotSaved)
+    /**
+     * Java only
+     * 
+     * @j2sIgnore
+     */
+    {
+      String name = schemeName.getText().trim();
+      if (oldColourScheme != null && !"".equals(name)
+              && name.equals(oldColourScheme.getSchemeName()))
+      {
+        String message = MessageManager
+                .formatMessage("label.scheme_changed", name);
+        String title = MessageManager.getString("label.save_changes");
+        String[] options = new String[] { title,
+            MessageManager.getString("label.dont_save_changes"), };
+        final String question = JvSwingUtils.wrapTooltip(true, message);
+        int response = JvOptionPane.showOptionDialog(Desktop.desktop,
+                question, title, JvOptionPane.DEFAULT_OPTION,
+                JvOptionPane.PLAIN_MESSAGE, null, options, options[0]);
+
+        if (response == 0)
+        {
+          /*
+           * prompt to save changes to file; if done,
+           * resets 'changed' flag to false
+           */
+          savebutton_actionPerformed();
+        }
+
+        /*
+         * if user chooses not to save (either in this dialog or in the
+         * save as dialogs), treat this as a new user defined colour scheme
+         */
+        if (changedButNotSaved)
+        {
+          /*
+           * clear scheme name and re-apply as an anonymous scheme
+           */
+          schemeName.setText("");
+          applyButton_actionPerformed();
+        }
+      }
+    }
+  }
+
+  /**
+   * Returns true if the user has not made any colour selection (including if
+   * 'case-sensitive' selected and no lower-case colour chosen).
+   * 
+   * @return
+   */
+  protected boolean isNoSelectionMade()
+  {
+    final boolean noUpperCaseSelected = upperCaseButtons == null
+            || upperCaseButtons.isEmpty();
+    final boolean noLowerCaseSelected = caseSensitive.isSelected()
+            && (lowerCaseButtons == null || lowerCaseButtons.isEmpty());
+    final boolean noSelectionMade = noUpperCaseSelected
+            || noLowerCaseSelected;
+    return noSelectionMade;
+  }
+
+  /**
+   * Applies the current colour scheme to the alignment or sequence group
+   */
+  @Override
+  protected void applyButton_actionPerformed()
+  {
+    if (isNoSelectionMade())
+    {
+      JvOptionPane.showMessageDialog(Desktop.desktop,
+              MessageManager
+                      .getString("label.no_colour_selection_in_scheme"),
+              MessageManager.getString("label.no_colour_selection_warn"),
+              JvOptionPane.WARNING_MESSAGE);
+
+    }
+    UserColourScheme ucs = getSchemeFromButtons();
+
+    ap.alignFrame.changeColour(ucs);
+  }
+
+  /**
+   * Constructs an instance of UserColourScheme with the residue colours
+   * currently set on the buttons on the panel
+   * 
+   * @return
+   */
+  UserColourScheme getSchemeFromButtons()
+  {
+
+    Color[] newColours = new Color[24];
+
+    int length = upperCaseButtons.size();
+    if (length < 24)
+    {
+      int i = 0;
+      for (JButton btn : upperCaseButtons)
+      {
+        newColours[i] = btn.getBackground();
+        i++;
+      }
+    }
+    else
+    {
+      for (int i = 0; i < 24; i++)
+      {
+        JButton button = upperCaseButtons.get(i);
+        newColours[i] = button.getBackground();
+      }
+    }
+
+    UserColourScheme ucs = new UserColourScheme(newColours);
+    ucs.setName(schemeName.getText());
+
+    if (caseSensitive.isSelected())
+    {
+      newColours = new Color[23];
+      length = lowerCaseButtons.size();
+      if (length < 23)
+      {
+        int i = 0;
+        for (JButton btn : lowerCaseButtons)
+        {
+          newColours[i] = btn.getBackground();
+          i++;
+        }
+      }
+      else
+      {
+        for (int i = 0; i < 23; i++)
+        {
+          JButton button = lowerCaseButtons.get(i);
+          newColours[i] = button.getBackground();
+        }
+      }
+      ucs.setLowerCaseColours(newColours);
+    }
+
+    return ucs;
+  }
+
+  /**
+   * Action on clicking Load scheme button.
+   * <ul>
+   * <li>Open a file chooser to browse for files with extension .jc</li>
+   * <li>Load in the colour scheme and transfer it to this panel's buttons</li>
+   * <li>Register the loaded colour scheme</li>
+   * </ul>
+   */
+  @Override
+  protected void loadbutton_actionPerformed()
+  {
+    upperCaseButtons = new ArrayList<>();
+    lowerCaseButtons = new ArrayList<>();
+    JalviewFileChooser chooser = new JalviewFileChooser("jc",
+            "Jalview User Colours");
+    chooser.setFileView(new JalviewFileView());
+    chooser.setDialogTitle(
+            MessageManager.getString("label.load_colour_scheme"));
+    chooser.setToolTipText(MessageManager.getString("action.load"));
+    chooser.setResponseHandler(0, new Runnable()
+    {
+      @Override
+      public void run()
+      {
+        File choice = chooser.getSelectedFile();
+        Cache.setProperty(LAST_DIRECTORY, choice.getParent());
+
+        UserColourScheme ucs = ColourSchemeLoader
+                .loadColourScheme(choice.getAbsolutePath());
+        Color[] colors = ucs.getColours();
+        schemeName.setText(ucs.getSchemeName());
+
+        if (ucs.getLowerCaseColours() != null)
+        {
+          caseSensitive.setSelected(true);
+          lcaseColour.setEnabled(true);
+          resetButtonPanel(true);
+          for (int i = 0; i < lowerCaseButtons.size(); i++)
+          {
+            JButton button = lowerCaseButtons.get(i);
+            button.setBackground(ucs.getLowerCaseColours()[i]);
+          }
+        }
+        else
+        {
+          caseSensitive.setSelected(false);
+          lcaseColour.setEnabled(false);
+          resetButtonPanel(false);
+        }
+
+        for (int i = 0; i < upperCaseButtons.size(); i++)
+        {
+          JButton button = upperCaseButtons.get(i);
+          button.setBackground(colors[i]);
+        }
+
+        addNewColourScheme(choice.getPath());
+      }
+    });
+
+    chooser.showOpenDialog(this);
+  }
+
+  /**
+   * Loads the user-defined colour scheme from the first file listed in property
+   * "USER_DEFINED_COLOURS". If this fails, returns an all-white colour scheme.
+   * 
+   * @return
+   */
+  public static UserColourScheme loadDefaultColours()
+  {
+    UserColourScheme ret = null;
+
+    String colours = Cache.getProperty(USER_DEFINED_COLOURS);
+    if (colours != null)
+    {
+      if (colours.indexOf("|") > -1)
+      {
+        colours = colours.substring(0, colours.indexOf("|"));
+      }
+      ret = ColourSchemeLoader.loadColourScheme(colours);
+    }
+
+    if (ret == null)
+    {
+      ret = new UserColourScheme("white");
+    }
+
+    return ret;
+  }
+
+  /**
+   * Action on pressing the Save button.
+   * <ul>
+   * <li>Check a name has been entered</li>
+   * <li>Warn if the name already exists, remove any existing scheme of the same
+   * name if overwriting</li>
+   * <li>Do the standard file chooser thing to write with extension .jc</li>
+   * <li>If saving changes (possibly not yet applied) to the currently selected
+   * colour scheme, then apply the changes, as it is too late to back out
+   * now</li>
+   * <li>Don't apply the changes if the currently selected scheme is different,
+   * to allow a new scheme to be configured and saved but not applied</li>
+   * </ul>
+   * If the scheme is saved to file, the 'changed' flag field is reset to false.
+   */
+  @Override
+  protected void savebutton_actionPerformed()
+  {
+    String name = schemeName.getText().trim();
+    if (name.length() < 1)
+    {
+      JvOptionPane.showInternalMessageDialog(Desktop.desktop,
+              MessageManager
+                      .getString("label.user_colour_scheme_must_have_name"),
+              MessageManager.getString("label.no_name_colour_scheme"),
+              JvOptionPane.WARNING_MESSAGE);
+    }
+
+    if (!Platform.isJS() && ColourSchemes.getInstance().nameExists(name))
+    {
+      /**
+       * java only
+       * 
+       * @j2sIgnore
+       */
+      {
+        int reply = JvOptionPane.showInternalConfirmDialog(Desktop.desktop,
+                MessageManager.formatMessage(
+                        "label.colour_scheme_exists_overwrite", new Object[]
+                        { name, name }),
+                MessageManager.getString("label.duplicate_scheme_name"),
+                JvOptionPane.YES_NO_OPTION);
+        if (reply != JvOptionPane.YES_OPTION)
+        {
+          return;
+        }
+      }
+    }
+
+    JalviewFileChooser chooser = new JalviewFileChooser("jc",
+            "Jalview User Colours");
+
+    JalviewFileView fileView = new JalviewFileView();
+    chooser.setFileView(fileView);
+    chooser.setDialogTitle(
+            MessageManager.getString("label.save_colour_scheme"));
+    chooser.setToolTipText(MessageManager.getString("action.save"));
+    int option = chooser.showSaveDialog(this);
+    if (option == JalviewFileChooser.APPROVE_OPTION)
+    {
+      File file = chooser.getSelectedFile();
+      UserColourScheme updatedScheme = addNewColourScheme(file.getPath());
+      saveToFile(file);
+      changedButNotSaved = false;
+
+      /*
+       * changes saved - apply to alignment if we are changing 
+       * the currently selected colour scheme; also make the updated
+       * colours the 'backout' scheme on Cancel
+       */
+      if (oldColourScheme != null
+              && name.equals(oldColourScheme.getSchemeName()))
+      {
+        oldColourScheme = updatedScheme;
+        applyButton_actionPerformed();
+      }
+    }
+  }
+
+  /**
+   * Adds the current colour scheme to the Jalview properties file so it is
+   * loaded on next startup, and updates the Colour menu in the parent
+   * AlignFrame (if there is one). Note this action does not including applying
+   * the colour scheme.
+   * 
+   * @param filePath
+   * @return
+   */
+  protected UserColourScheme addNewColourScheme(String filePath)
+  {
+    /*
+     * update the delimited list of user defined colour files in
+     * Jalview property USER_DEFINED_COLOURS
+     */
+    String defaultColours = Cache.getDefault(USER_DEFINED_COLOURS,
+            filePath);
+    if (defaultColours.indexOf(filePath) == -1)
+    {
+      if (defaultColours.length() > 0)
+      {
+        defaultColours = defaultColours.concat("|");
+      }
+      defaultColours = defaultColours.concat(filePath);
+    }
+    Cache.setProperty(USER_DEFINED_COLOURS, defaultColours);
+
+    /*
+     * construct and register the colour scheme
+     */
+    UserColourScheme ucs = getSchemeFromButtons();
+    ColourSchemes.getInstance().registerColourScheme(ucs);
+
+    /*
+     * update the Colour menu items
+     */
+    if (ap != null)
+    {
+      ap.alignFrame.buildColourMenu();
+    }
+
+    return ucs;
+  }
+
+  /**
+   * Saves the colour scheme to file in XML format
+   * 
+   * @param path
+   */
+  protected void saveToFile(File toFile)
+  {
+    /*
+     * build a Java model of colour scheme as XML, and 
+     * marshal to file
+     */
+    JalviewUserColours ucs = new JalviewUserColours();
+    String name = schemeName.getText();
+    ucs.setSchemeName(name);
+    try
+    {
+      PrintWriter out = new PrintWriter(new OutputStreamWriter(
+              new FileOutputStream(toFile), "UTF-8"));
+
+      for (int i = 0; i < buttonPanel.getComponentCount(); i++)
+      {
+        JButton button = (JButton) buttonPanel.getComponent(i);
+        Colour col = new Colour();
+        col.setName(button.getText());
+        col.setRGB(Format.getHexString(button.getBackground()));
+        ucs.getColour().add(col);
+      }
+      JAXBContext jaxbContext = JAXBContext
+              .newInstance(JalviewUserColours.class);
+      Marshaller jaxbMarshaller = jaxbContext.createMarshaller();
+      jaxbMarshaller.marshal(
+              new ObjectFactory().createJalviewUserColours(ucs), out);
+      // ucs.marshal(out);
+      out.close();
+    } catch (Exception ex)
+    {
+      ex.printStackTrace();
+    }
+  }
+
+  /**
+   * On cancel, restores the colour scheme that was selected before the dialogue
+   * was opened
+   */
+  @Override
+  protected void cancelButton_actionPerformed()
+  {
+    ap.alignFrame.changeColour(oldColourScheme);
+    ap.paintAlignment(true, true);
+
+    try
+    {
+      frame.setClosed(true);
+    } catch (Exception ex)
+    {
+    }
+  }
+
+  /**
+   * Action on selecting or deselecting the Case Sensitive option. When
+   * selected, separate buttons are shown for lower case residues, and the panel
+   * is resized to accommodate them. Also, the checkbox for 'apply colour to all
+   * lower case' is enabled.
+   */
+  @Override
+  public void caseSensitive_actionPerformed()
+  {
+    boolean selected = caseSensitive.isSelected();
+    resetButtonPanel(selected);
+    lcaseColour.setEnabled(selected);
+  }
+}