JAL-3210 Merge branch 'develop' into trialMerge
[jalview.git] / src / jalview / gui / Preferences.java
1 /*
2  * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3  * Copyright (C) $$Year-Rel$$ The Jalview Authors
4  * 
5  * This file is part of Jalview.
6  * 
7  * Jalview is free software: you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License 
9  * as published by the Free Software Foundation, either version 3
10  * of the License, or (at your option) any later version.
11  *  
12  * Jalview is distributed in the hope that it will be useful, but 
13  * WITHOUT ANY WARRANTY; without even the implied warranty 
14  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
15  * PURPOSE.  See the GNU General Public License for more details.
16  * 
17  * You should have received a copy of the GNU General Public License
18  * along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
19  * The Jalview Authors are detailed in the 'AUTHORS' file.
20  */
21 package jalview.gui;
22
23 import jalview.analysis.AnnotationSorter.SequenceAnnotationOrder;
24 import jalview.bin.Cache;
25 import jalview.gui.Help.HelpId;
26 import jalview.gui.StructureViewer.ViewerType;
27 import jalview.io.BackupFiles;
28 import jalview.io.BackupFilesPresetEntry;
29 import jalview.io.FileFormatI;
30 import jalview.io.JalviewFileChooser;
31 import jalview.io.JalviewFileView;
32 import jalview.jbgui.GPreferences;
33 import jalview.jbgui.GSequenceLink;
34 import jalview.schemes.ColourSchemeI;
35 import jalview.schemes.ColourSchemes;
36 import jalview.schemes.ResidueColourScheme;
37 import jalview.urls.UrlLinkTableModel;
38 import jalview.urls.api.UrlProviderFactoryI;
39 import jalview.urls.api.UrlProviderI;
40 import jalview.urls.desktop.DesktopUrlProviderFactory;
41 import jalview.util.MessageManager;
42 import jalview.util.Platform;
43 import jalview.util.UrlConstants;
44 import jalview.ws.sifts.SiftsSettings;
45
46 import java.awt.BorderLayout;
47 import java.awt.Color;
48 import java.awt.Component;
49 import java.awt.Dimension;
50 import java.awt.Font;
51 import java.awt.event.ActionEvent;
52 import java.awt.event.ActionListener;
53 import java.awt.event.MouseEvent;
54 import java.io.File;
55 import java.util.ArrayList;
56 import java.util.List;
57
58 import javax.help.HelpSetException;
59 import javax.swing.JComboBox;
60 import javax.swing.JFileChooser;
61 import javax.swing.JInternalFrame;
62 import javax.swing.JPanel;
63 import javax.swing.ListSelectionModel;
64 import javax.swing.RowFilter;
65 import javax.swing.RowSorter;
66 import javax.swing.SortOrder;
67 import javax.swing.event.DocumentEvent;
68 import javax.swing.event.DocumentListener;
69 import javax.swing.event.ListSelectionEvent;
70 import javax.swing.event.ListSelectionListener;
71 import javax.swing.table.TableCellRenderer;
72 import javax.swing.table.TableColumn;
73 import javax.swing.table.TableModel;
74 import javax.swing.table.TableRowSorter;
75
76 import ext.edu.ucsf.rbvi.strucviz2.StructureManager;
77
78 /**
79  * DOCUMENT ME!
80  * 
81  * @author $author$
82  * @version $Revision$
83  */
84 public class Preferences extends GPreferences
85 {
86   public static final String ENABLE_SPLIT_FRAME = "ENABLE_SPLIT_FRAME";
87
88   public static final String SCALE_PROTEIN_TO_CDNA = "SCALE_PROTEIN_TO_CDNA";
89
90   public static final String DEFAULT_COLOUR = "DEFAULT_COLOUR";
91
92   public static final String DEFAULT_COLOUR_PROT = "DEFAULT_COLOUR_PROT";
93
94   public static final String DEFAULT_COLOUR_NUC = "DEFAULT_COLOUR_NUC";
95
96   public static final String ADD_TEMPFACT_ANN = "ADD_TEMPFACT_ANN";
97
98   public static final String ADD_SS_ANN = "ADD_SS_ANN";
99
100   public static final String USE_RNAVIEW = "USE_RNAVIEW";
101
102   public static final String STRUCT_FROM_PDB = "STRUCT_FROM_PDB";
103
104   public static final String STRUCTURE_DISPLAY = "STRUCTURE_DISPLAY";
105
106   public static final String CHIMERA_PATH = "CHIMERA_PATH";
107
108   public static final String SORT_ANNOTATIONS = "SORT_ANNOTATIONS";
109
110   public static final String SHOW_AUTOCALC_ABOVE = "SHOW_AUTOCALC_ABOVE";
111
112   public static final String SHOW_OCCUPANCY = "SHOW_OCCUPANCY";
113
114   public static final String SHOW_OV_HIDDEN_AT_START = "SHOW_OV_HIDDEN_AT_START";
115
116   public static final String USE_LEGACY_GAP = "USE_LEGACY_GAP";
117
118   public static final String GAP_COLOUR = "GAP_COLOUR";
119
120   public static final String HIDDEN_COLOUR = "HIDDEN_COLOUR";
121
122   private static final int MIN_FONT_SIZE = 1;
123
124   private static final int MAX_FONT_SIZE = 30;
125
126   /**
127    * Holds name and link separated with | character. Sequence ID must be
128    * $SEQUENCE_ID$ or $SEQUENCE_ID=/.possible | chars ./=$
129    */
130   public static UrlProviderI sequenceUrlLinks;
131
132   public static UrlLinkTableModel dataModel;
133
134   /**
135    * Holds name and link separated with | character. Sequence IDS and Sequences
136    * must be $SEQUENCEIDS$ or $SEQUENCEIDS=/.possible | chars ./=$ and
137    * $SEQUENCES$ or $SEQUENCES=/.possible | chars ./=$ and separation character
138    * for first and second token specified after a pipe character at end |,|.
139    * (TODO: proper escape for using | to separate ids or sequences
140    */
141
142   public static List<String> groupURLLinks;
143   static
144   {
145     // get links selected to be in the menu (SEQUENCE_LINKS)
146     // and links entered by the user but not selected (STORED_LINKS)
147     String inMenuString = Cache.getDefault("SEQUENCE_LINKS", "");
148     String notInMenuString = Cache.getDefault("STORED_LINKS", "");
149     String defaultUrl = Cache.getDefault("DEFAULT_URL",
150             UrlConstants.DEFAULT_LABEL);
151
152     // if both links lists are empty, add the DEFAULT_URL link
153     // otherwise we assume the default link is in one of the lists
154     if (inMenuString.isEmpty() && notInMenuString.isEmpty())
155     {
156       inMenuString = UrlConstants.DEFAULT_STRING;
157     }
158     UrlProviderFactoryI factory = new DesktopUrlProviderFactory(defaultUrl,
159             inMenuString, notInMenuString);
160     sequenceUrlLinks = factory.createUrlProvider();
161     dataModel = new UrlLinkTableModel(sequenceUrlLinks);
162
163     /**
164      * TODO: reformulate groupURL encoding so two or more can be stored in the
165      * .properties file as '|' separated strings
166      */
167
168     groupURLLinks = new ArrayList<>();
169   }
170
171   JInternalFrame frame;
172
173   private WsPreferences wsPrefs;
174
175   private OptionsParam promptEachTimeOpt = new OptionsParam(
176           MessageManager.getString("label.prompt_each_time"),
177           "Prompt each time");
178
179   private OptionsParam lineArtOpt = new OptionsParam(
180           MessageManager.getString("label.lineart"), "Lineart");
181
182   private OptionsParam textOpt = new OptionsParam(
183           MessageManager.getString("action.text"), "Text");
184
185   /**
186    * Creates a new Preferences object.
187    */
188   public Preferences()
189   {
190     super();
191     frame = new JInternalFrame();
192     frame.setContentPane(this);
193     if (!Platform.isJS())
194     /**
195      * Java only
196      * 
197      * @j2sIgnore
198      */
199     {
200       wsPrefs = new WsPreferences();
201       wsTab.add(wsPrefs, BorderLayout.CENTER);
202     }
203     int width = 500, height = 450;
204     if (Platform.isAMacAndNotJS())
205     {
206       width = 570;
207       height = 480;
208     }
209
210     Desktop.addInternalFrame(frame,
211             MessageManager.getString("label.preferences"), width, height);
212     frame.setMinimumSize(new Dimension(width, height));
213
214     /*
215      * Set Visual tab defaults
216      */
217     seqLimit.setSelected(Cache.getDefault("SHOW_JVSUFFIX", true));
218     rightAlign.setSelected(Cache.getDefault("RIGHT_ALIGN_IDS", false));
219     fullScreen.setSelected(Cache.getDefault("SHOW_FULLSCREEN", false));
220     annotations.setSelected(Cache.getDefault("SHOW_ANNOTATIONS", true));
221
222     conservation.setSelected(Cache.getDefault("SHOW_CONSERVATION", true));
223     quality.setSelected(Cache.getDefault("SHOW_QUALITY", true));
224     identity.setSelected(Cache.getDefault("SHOW_IDENTITY", true));
225     openoverv.setSelected(Cache.getDefault("SHOW_OVERVIEW", false));
226     showUnconserved
227             .setSelected(Cache.getDefault("SHOW_UNCONSERVED", false));
228     showOccupancy.setSelected(Cache.getDefault(SHOW_OCCUPANCY, false));
229     showGroupConsensus
230             .setSelected(Cache.getDefault("SHOW_GROUP_CONSENSUS", false));
231     showGroupConservation.setSelected(
232             Cache.getDefault("SHOW_GROUP_CONSERVATION", false));
233     showConsensHistogram.setSelected(
234             Cache.getDefault("SHOW_CONSENSUS_HISTOGRAM", true));
235     showConsensLogo
236             .setSelected(Cache.getDefault("SHOW_CONSENSUS_LOGO", false));
237     showNpTooltip
238             .setSelected(Cache.getDefault("SHOW_NPFEATS_TOOLTIP", true));
239     showDbRefTooltip
240             .setSelected(Cache.getDefault("SHOW_DBREFS_TOOLTIP", true));
241
242     String[] fonts = java.awt.GraphicsEnvironment
243             .getLocalGraphicsEnvironment().getAvailableFontFamilyNames();
244     for (int i = 0; i < fonts.length; i++)
245     {
246       fontNameCB.addItem(fonts[i]);
247     }
248
249     for (int i = MIN_FONT_SIZE; i <= MAX_FONT_SIZE; i++)
250     {
251       fontSizeCB.addItem(i + "");
252     }
253
254     fontStyleCB.addItem("plain");
255     fontStyleCB.addItem("bold");
256     fontStyleCB.addItem("italic");
257
258     fontNameCB.setSelectedItem(Cache.getDefault("FONT_NAME", "SansSerif"));
259     fontSizeCB.setSelectedItem(Cache.getDefault("FONT_SIZE", "10"));
260     fontStyleCB.setSelectedItem(
261             Cache.getDefault("FONT_STYLE", Font.PLAIN + ""));
262
263     smoothFont.setSelected(Cache.getDefault("ANTI_ALIAS", false));
264     scaleProteinToCdna
265             .setSelected(Cache.getDefault(SCALE_PROTEIN_TO_CDNA, false));
266
267     idItalics.setSelected(Cache.getDefault("ID_ITALICS", true));
268
269     wrap.setSelected(Cache.getDefault("WRAP_ALIGNMENT", false));
270
271     gapSymbolCB.addItem("-");
272     gapSymbolCB.addItem(".");
273
274     gapSymbolCB.setSelectedItem(Cache.getDefault("GAP_SYMBOL", "-"));
275
276     sortby.addItem("No sort");
277     sortby.addItem("Id");
278     sortby.addItem("Pairwise Identity");
279     sortby.setSelectedItem(Cache.getDefault("SORT_ALIGNMENT", "No sort"));
280
281     sortAnnBy.addItem(SequenceAnnotationOrder.NONE.toString());
282     sortAnnBy
283             .addItem(SequenceAnnotationOrder.SEQUENCE_AND_LABEL.toString());
284     sortAnnBy
285             .addItem(SequenceAnnotationOrder.LABEL_AND_SEQUENCE.toString());
286     SequenceAnnotationOrder savedSort = SequenceAnnotationOrder
287             .valueOf(Cache.getDefault(SORT_ANNOTATIONS,
288                     SequenceAnnotationOrder.NONE.name()));
289     sortAnnBy.setSelectedItem(savedSort.toString());
290
291     sortAutocalc.addItem("Autocalculated first");
292     sortAutocalc.addItem("Autocalculated last");
293     final boolean showAbove = Cache.getDefault(SHOW_AUTOCALC_ABOVE, true);
294     sortAutocalc.setSelectedItem(showAbove ? sortAutocalc.getItemAt(0)
295             : sortAutocalc.getItemAt(1));
296     startupCheckbox
297             .setSelected(Cache.getDefault("SHOW_STARTUP_FILE", true));
298     startupFileTextfield.setText(Cache.getDefault("STARTUP_FILE",
299             Cache.getDefault("www.jalview.org", "http://www.jalview.org")
300                     + "/examples/exampleFile_2_3.jar"));
301
302     /*
303      * Set Colours tab defaults
304      */
305     protColour.addItem(ResidueColourScheme.NONE);
306     nucColour.addItem(ResidueColourScheme.NONE);
307     for (ColourSchemeI cs : ColourSchemes.getInstance().getColourSchemes())
308     {
309       String name = cs.getSchemeName();
310       protColour.addItem(name);
311       nucColour.addItem(name);
312     }
313     String oldProp = Cache.getDefault(DEFAULT_COLOUR,
314             ResidueColourScheme.NONE);
315     String newProp = Cache.getDefault(DEFAULT_COLOUR_PROT, null);
316     protColour.setSelectedItem(newProp != null ? newProp : oldProp);
317     newProp = Cache.getDefault(DEFAULT_COLOUR_NUC, null);
318     nucColour.setSelectedItem(newProp != null ? newProp : oldProp);
319     minColour.setBackground(
320             Cache.getDefaultColour("ANNOTATIONCOLOUR_MIN", Color.orange));
321     maxColour.setBackground(
322             Cache.getDefaultColour("ANNOTATIONCOLOUR_MAX", Color.red));
323
324     /*
325      * Set overview panel defaults
326      */
327     gapColour.setBackground(
328             Cache.getDefaultColour(GAP_COLOUR,
329                     jalview.renderer.OverviewResColourFinder.OVERVIEW_DEFAULT_GAP));
330     hiddenColour.setBackground(
331             Cache.getDefaultColour(HIDDEN_COLOUR,
332                     jalview.renderer.OverviewResColourFinder.OVERVIEW_DEFAULT_HIDDEN));
333     useLegacyGap.setSelected(Cache.getDefault(USE_LEGACY_GAP, false));
334     gapLabel.setEnabled(!useLegacyGap.isSelected());
335     gapColour.setEnabled(!useLegacyGap.isSelected());
336     showHiddenAtStart
337             .setSelected(Cache.getDefault(SHOW_OV_HIDDEN_AT_START, false));
338
339     /*
340      * Set Structure tab defaults.
341      */
342     final boolean structSelected = Cache.getDefault(STRUCT_FROM_PDB, false);
343     structFromPdb.setSelected(structSelected);
344     useRnaView.setSelected(Cache.getDefault(USE_RNAVIEW, false));
345     useRnaView.setEnabled(structSelected);
346     addSecondaryStructure.setSelected(Cache.getDefault(ADD_SS_ANN, false));
347     addSecondaryStructure.setEnabled(structSelected);
348     addTempFactor.setSelected(Cache.getDefault(ADD_TEMPFACT_ANN, false));
349     addTempFactor.setEnabled(structSelected);
350     structViewer.setSelectedItem(
351             Cache.getDefault(STRUCTURE_DISPLAY, ViewerType.JMOL.name()));
352     chimeraPath.setText(Cache.getDefault(CHIMERA_PATH, ""));
353     chimeraPath.addActionListener(new ActionListener()
354     {
355       @Override
356       public void actionPerformed(ActionEvent e)
357       {
358         validateChimeraPath();
359       }
360     });
361
362     if (Cache.getDefault("MAP_WITH_SIFTS", false))
363     {
364       siftsMapping.setSelected(true);
365     }
366     else
367     {
368       nwMapping.setSelected(true);
369     }
370
371     SiftsSettings
372             .setMapWithSifts(Cache.getDefault("MAP_WITH_SIFTS", false));
373
374     /*
375      * Set Connections tab defaults
376      */
377
378     // set up sorting
379     linkUrlTable.setModel(dataModel);
380     final TableRowSorter<TableModel> sorter = new TableRowSorter<>(
381             linkUrlTable.getModel());
382     linkUrlTable.setRowSorter(sorter);
383     List<RowSorter.SortKey> sortKeys = new ArrayList<>();
384
385     UrlLinkTableModel m = (UrlLinkTableModel) linkUrlTable.getModel();
386     sortKeys.add(new RowSorter.SortKey(m.getPrimaryColumn(),
387             SortOrder.DESCENDING));
388     sortKeys.add(new RowSorter.SortKey(m.getSelectedColumn(),
389             SortOrder.DESCENDING));
390     sortKeys.add(
391             new RowSorter.SortKey(m.getNameColumn(), SortOrder.ASCENDING));
392
393     sorter.setSortKeys(sortKeys);
394     // BH 2018 setSortKeys will do the sort
395     // sorter.sort();
396
397     // set up filtering
398     ActionListener onReset;
399     onReset = new ActionListener()
400     {
401       @Override
402       public void actionPerformed(ActionEvent e)
403       {
404         filterTB.setText("");
405         sorter.setRowFilter(RowFilter.regexFilter(""));
406       }
407
408     };
409     doReset.addActionListener(onReset);
410
411     // filter to display only custom urls
412     final RowFilter<TableModel, Object> customUrlFilter = new RowFilter<TableModel, Object>()
413     {
414       @Override
415       public boolean include(
416               Entry<? extends TableModel, ? extends Object> entry)
417       {
418         return ((UrlLinkTableModel) entry.getModel()).isUserEntry(entry);
419       }
420     };
421
422     final TableRowSorter<TableModel> customSorter = new TableRowSorter<>(
423             linkUrlTable.getModel());
424     customSorter.setRowFilter(customUrlFilter);
425
426     ActionListener onCustomOnly;
427     onCustomOnly = new ActionListener()
428     {
429       @Override
430       public void actionPerformed(ActionEvent e)
431       {
432         filterTB.setText("");
433         sorter.setRowFilter(customUrlFilter);
434       }
435     };
436     userOnly.addActionListener(onCustomOnly);
437
438     filterTB.getDocument().addDocumentListener(new DocumentListener()
439     {
440       String caseInsensitiveFlag = "(?i)";
441
442       @Override
443       public void changedUpdate(DocumentEvent e)
444       {
445         sorter.setRowFilter(RowFilter
446                 .regexFilter(caseInsensitiveFlag + filterTB.getText()));
447       }
448
449       @Override
450       public void removeUpdate(DocumentEvent e)
451       {
452         sorter.setRowFilter(RowFilter
453                 .regexFilter(caseInsensitiveFlag + filterTB.getText()));
454       }
455
456       @Override
457       public void insertUpdate(DocumentEvent e)
458       {
459         sorter.setRowFilter(RowFilter
460                 .regexFilter(caseInsensitiveFlag + filterTB.getText()));
461       }
462     });
463
464     // set up list selection functionality
465     linkUrlTable.getSelectionModel()
466             .addListSelectionListener(new UrlListSelectionHandler());
467
468     // set up radio buttons
469     int onClickCol = ((UrlLinkTableModel) linkUrlTable.getModel())
470             .getPrimaryColumn();
471     String onClickName = linkUrlTable.getColumnName(onClickCol);
472     linkUrlTable.getColumn(onClickName)
473             .setCellRenderer(new RadioButtonRenderer());
474     linkUrlTable.getColumn(onClickName)
475             .setCellEditor(new RadioButtonEditor());
476
477     // get boolean columns and resize those to min possible
478     for (int column = 0; column < linkUrlTable.getColumnCount(); column++)
479     {
480       if (linkUrlTable.getModel().getColumnClass(column)
481               .equals(Boolean.class))
482       {
483         TableColumn tableColumn = linkUrlTable.getColumnModel()
484                 .getColumn(column);
485         int preferredWidth = tableColumn.getMinWidth();
486
487         TableCellRenderer cellRenderer = linkUrlTable.getCellRenderer(0,
488                 column);
489         Component c = linkUrlTable.prepareRenderer(cellRenderer, 0, column);
490         int cwidth = c.getPreferredSize().width
491                 + linkUrlTable.getIntercellSpacing().width;
492         preferredWidth = Math.max(preferredWidth, cwidth);
493
494         tableColumn.setPreferredWidth(preferredWidth);
495       }
496     }
497
498     useProxy.setSelected(Cache.getDefault("USE_PROXY", false));
499     useProxy_actionPerformed(); // make sure useProxy is correctly initialised
500     proxyServerTB.setText(Cache.getDefault("PROXY_SERVER", ""));
501     proxyPortTB.setText(Cache.getDefault("PROXY_PORT", ""));
502
503     defaultBrowser.setText(Cache.getDefault("DEFAULT_BROWSER", ""));
504
505     usagestats.setSelected(Cache.getDefault("USAGESTATS", false));
506     // note antisense here: default is true
507     questionnaire
508             .setSelected(Cache.getProperty("NOQUESTIONNAIRES") == null);
509     versioncheck.setSelected(Cache.getDefault("VERSION_CHECK", true));
510
511     /*
512      * Set Output tab defaults
513      */
514     setupOutputCombo(epsRendering, "EPS_RENDERING");
515     setupOutputCombo(htmlRendering, "HTML_RENDERING");
516     setupOutputCombo(svgRendering, "SVG_RENDERING");
517     autoIdWidth.setSelected(Cache.getDefault("FIGURE_AUTOIDWIDTH", false));
518     userIdWidth.setEnabled(!autoIdWidth.isSelected());
519     userIdWidthlabel.setEnabled(!autoIdWidth.isSelected());
520     Integer wi = Cache.getIntegerProperty("FIGURE_FIXEDIDWIDTH");
521     userIdWidth.setText(wi == null ? "" : wi.toString());
522     // TODO: refactor to use common enum via FormatAdapter and allow extension
523     // for new flat file formats
524     blcjv.setSelected(Cache.getDefault("BLC_JVSUFFIX", true));
525     clustaljv.setSelected(Cache.getDefault("CLUSTAL_JVSUFFIX", true));
526     fastajv.setSelected(Cache.getDefault("FASTA_JVSUFFIX", true));
527     msfjv.setSelected(Cache.getDefault("MSF_JVSUFFIX", true));
528     pfamjv.setSelected(Cache.getDefault("PFAM_JVSUFFIX", true));
529     pileupjv.setSelected(Cache.getDefault("PILEUP_JVSUFFIX", true));
530     pirjv.setSelected(Cache.getDefault("PIR_JVSUFFIX", true));
531     modellerOutput.setSelected(Cache.getDefault("PIR_MODELLER", false));
532     embbedBioJSON
533             .setSelected(Cache.getDefault("EXPORT_EMBBED_BIOJSON", true));
534
535     /*
536      * Set Editing tab defaults
537      */
538     autoCalculateConsCheck
539             .setSelected(Cache.getDefault("AUTO_CALC_CONSENSUS", true));
540     padGaps.setSelected(Cache.getDefault("PAD_GAPS", false));
541     sortByTree.setSelected(Cache.getDefault("SORT_BY_TREE", false));
542
543     annotations_actionPerformed(null); // update the display of the annotation
544                                        // settings
545     
546     
547     /*
548      * Set Backups tab defaults
549      */
550     loadLastSavedBackupsOptions();
551   }
552
553   /**
554    * A helper method that sets the items and initial selection in a character
555    * rendering option list (Prompt each time/Lineart/Text)
556    * 
557    * @param comboBox
558    * @param propertyKey
559    */
560   protected void setupOutputCombo(JComboBox<Object> comboBox,
561           String propertyKey)
562   {
563     comboBox.addItem(promptEachTimeOpt);
564     comboBox.addItem(lineArtOpt);
565     comboBox.addItem(textOpt);
566     
567     /*
568      * JalviewJS doesn't support Lineart so force it to Text
569      */
570     String defaultOption = Platform.isJS() ? "Text"
571             : Cache.getDefault(propertyKey, "Prompt each time");
572     if (defaultOption.equalsIgnoreCase("Text"))
573     {
574       comboBox.setSelectedItem(textOpt);
575     }
576     else if (defaultOption.equalsIgnoreCase("Lineart"))
577     {
578       comboBox.setSelectedItem(lineArtOpt);
579     }
580     else
581     {
582       comboBox.setSelectedItem(promptEachTimeOpt);
583     }
584   }
585
586   /**
587    * Save user selections on the Preferences tabs to the Cache and write out to
588    * file.
589    * 
590    * @param e
591    */
592   @Override
593   public void ok_actionPerformed(ActionEvent e)
594   {
595     if (!validateSettings())
596     {
597       return;
598     }
599
600     /*
601      * Save Visual settings
602      */
603     Cache.applicationProperties.setProperty("SHOW_JVSUFFIX",
604             Boolean.toString(seqLimit.isSelected()));
605     Cache.applicationProperties.setProperty("RIGHT_ALIGN_IDS",
606             Boolean.toString(rightAlign.isSelected()));
607     Cache.applicationProperties.setProperty("SHOW_FULLSCREEN",
608             Boolean.toString(fullScreen.isSelected()));
609     Cache.applicationProperties.setProperty("SHOW_OVERVIEW",
610             Boolean.toString(openoverv.isSelected()));
611     Cache.applicationProperties.setProperty("SHOW_ANNOTATIONS",
612             Boolean.toString(annotations.isSelected()));
613     Cache.applicationProperties.setProperty("SHOW_CONSERVATION",
614             Boolean.toString(conservation.isSelected()));
615     Cache.applicationProperties.setProperty("SHOW_QUALITY",
616             Boolean.toString(quality.isSelected()));
617     Cache.applicationProperties.setProperty("SHOW_IDENTITY",
618             Boolean.toString(identity.isSelected()));
619
620     Cache.applicationProperties.setProperty("GAP_SYMBOL",
621             gapSymbolCB.getSelectedItem().toString());
622
623     Cache.applicationProperties.setProperty("FONT_NAME",
624             fontNameCB.getSelectedItem().toString());
625     Cache.applicationProperties.setProperty("FONT_STYLE",
626             fontStyleCB.getSelectedItem().toString());
627     Cache.applicationProperties.setProperty("FONT_SIZE",
628             fontSizeCB.getSelectedItem().toString());
629
630     Cache.applicationProperties.setProperty("ID_ITALICS",
631             Boolean.toString(idItalics.isSelected()));
632     Cache.applicationProperties.setProperty("SHOW_UNCONSERVED",
633             Boolean.toString(showUnconserved.isSelected()));
634     Cache.applicationProperties.setProperty(SHOW_OCCUPANCY,
635             Boolean.toString(showOccupancy.isSelected()));
636     Cache.applicationProperties.setProperty("SHOW_GROUP_CONSENSUS",
637             Boolean.toString(showGroupConsensus.isSelected()));
638     Cache.applicationProperties.setProperty("SHOW_GROUP_CONSERVATION",
639             Boolean.toString(showGroupConservation.isSelected()));
640     Cache.applicationProperties.setProperty("SHOW_CONSENSUS_HISTOGRAM",
641             Boolean.toString(showConsensHistogram.isSelected()));
642     Cache.applicationProperties.setProperty("SHOW_CONSENSUS_LOGO",
643             Boolean.toString(showConsensLogo.isSelected()));
644     Cache.applicationProperties.setProperty("ANTI_ALIAS",
645             Boolean.toString(smoothFont.isSelected()));
646     Cache.applicationProperties.setProperty(SCALE_PROTEIN_TO_CDNA,
647             Boolean.toString(scaleProteinToCdna.isSelected()));
648     Cache.applicationProperties.setProperty("SHOW_NPFEATS_TOOLTIP",
649             Boolean.toString(showNpTooltip.isSelected()));
650     Cache.applicationProperties.setProperty("SHOW_DBREFS_TOOLTIP",
651             Boolean.toString(showDbRefTooltip.isSelected()));
652
653     Cache.applicationProperties.setProperty("WRAP_ALIGNMENT",
654             Boolean.toString(wrap.isSelected()));
655
656     Cache.applicationProperties.setProperty("STARTUP_FILE",
657             startupFileTextfield.getText());
658     Cache.applicationProperties.setProperty("SHOW_STARTUP_FILE",
659             Boolean.toString(startupCheckbox.isSelected()));
660
661     Cache.applicationProperties.setProperty("SORT_ALIGNMENT",
662             sortby.getSelectedItem().toString());
663
664     // convert description of sort order to enum name for save
665     SequenceAnnotationOrder annSortOrder = SequenceAnnotationOrder
666             .forDescription(sortAnnBy.getSelectedItem().toString());
667     if (annSortOrder != null)
668     {
669       Cache.applicationProperties.setProperty(SORT_ANNOTATIONS,
670               annSortOrder.name());
671     }
672
673     final boolean showAutocalcFirst = sortAutocalc.getSelectedIndex() == 0;
674     Cache.applicationProperties.setProperty(SHOW_AUTOCALC_ABOVE,
675             Boolean.valueOf(showAutocalcFirst).toString());
676
677     /*
678      * Save Colours settings
679      */
680     Cache.applicationProperties.setProperty(DEFAULT_COLOUR_PROT,
681             protColour.getSelectedItem().toString());
682     Cache.applicationProperties.setProperty(DEFAULT_COLOUR_NUC,
683             nucColour.getSelectedItem().toString());
684     Cache.setColourProperty("ANNOTATIONCOLOUR_MIN",
685             minColour.getBackground());
686     Cache.setColourProperty("ANNOTATIONCOLOUR_MAX",
687             maxColour.getBackground());
688
689     /*
690      * Save Overview settings
691      */
692     Cache.setColourProperty(GAP_COLOUR, gapColour.getBackground());
693     Cache.setColourProperty(HIDDEN_COLOUR, hiddenColour.getBackground());
694     Cache.applicationProperties.setProperty(USE_LEGACY_GAP,
695             Boolean.toString(useLegacyGap.isSelected()));
696     Cache.applicationProperties.setProperty(SHOW_OV_HIDDEN_AT_START,
697             Boolean.toString(showHiddenAtStart.isSelected()));
698
699     /*
700      * Save Structure settings
701      */
702     Cache.applicationProperties.setProperty(ADD_TEMPFACT_ANN,
703             Boolean.toString(addTempFactor.isSelected()));
704     Cache.applicationProperties.setProperty(ADD_SS_ANN,
705             Boolean.toString(addSecondaryStructure.isSelected()));
706     Cache.applicationProperties.setProperty(USE_RNAVIEW,
707             Boolean.toString(useRnaView.isSelected()));
708     Cache.applicationProperties.setProperty(STRUCT_FROM_PDB,
709             Boolean.toString(structFromPdb.isSelected()));
710     Cache.applicationProperties.setProperty(STRUCTURE_DISPLAY,
711             structViewer.getSelectedItem().toString());
712     Cache.setOrRemove(CHIMERA_PATH, chimeraPath.getText());
713     Cache.applicationProperties.setProperty("MAP_WITH_SIFTS",
714             Boolean.toString(siftsMapping.isSelected()));
715     SiftsSettings.setMapWithSifts(siftsMapping.isSelected());
716
717     /*
718      * Save Output settings
719      */
720     Cache.applicationProperties.setProperty("EPS_RENDERING",
721             ((OptionsParam) epsRendering.getSelectedItem()).getCode());
722     Cache.applicationProperties.setProperty("HTML_RENDERING",
723             ((OptionsParam) htmlRendering.getSelectedItem()).getCode());
724     Cache.applicationProperties.setProperty("SVG_RENDERING",
725             ((OptionsParam) svgRendering.getSelectedItem()).getCode());
726
727     /*
728      * Save Connections settings
729      */
730     Cache.setOrRemove("DEFAULT_BROWSER", defaultBrowser.getText());
731
732     jalview.util.BrowserLauncher.resetBrowser();
733
734     // save user-defined and selected links
735     String menuLinks = sequenceUrlLinks.writeUrlsAsString(true);
736     if (menuLinks.isEmpty())
737     {
738       Cache.applicationProperties.remove("SEQUENCE_LINKS");
739     }
740     else
741     {
742       Cache.applicationProperties.setProperty("SEQUENCE_LINKS",
743               menuLinks.toString());
744     }
745
746     String nonMenuLinks = sequenceUrlLinks.writeUrlsAsString(false);
747     if (nonMenuLinks.isEmpty())
748     {
749       Cache.applicationProperties.remove("STORED_LINKS");
750     }
751     else
752     {
753       Cache.applicationProperties.setProperty("STORED_LINKS",
754               nonMenuLinks.toString());
755     }
756
757     Cache.applicationProperties.setProperty("DEFAULT_URL",
758             sequenceUrlLinks.getPrimaryUrlId());
759
760     Cache.applicationProperties.setProperty("USE_PROXY",
761             Boolean.toString(useProxy.isSelected()));
762
763     Cache.setOrRemove("PROXY_SERVER", proxyServerTB.getText());
764
765     Cache.setOrRemove("PROXY_PORT", proxyPortTB.getText());
766
767     if (useProxy.isSelected())
768     {
769       System.setProperty("http.proxyHost", proxyServerTB.getText());
770       System.setProperty("http.proxyPort", proxyPortTB.getText());
771     }
772     else
773     {
774       System.setProperty("http.proxyHost", "");
775       System.setProperty("http.proxyPort", "");
776     }
777     Cache.setProperty("VERSION_CHECK",
778             Boolean.toString(versioncheck.isSelected()));
779     if (Cache.getProperty("USAGESTATS") != null || usagestats.isSelected())
780     {
781       // default is false - we only set this if the user has actively agreed
782       Cache.setProperty("USAGESTATS",
783               Boolean.toString(usagestats.isSelected()));
784     }
785     if (!questionnaire.isSelected())
786     {
787       Cache.setProperty("NOQUESTIONNAIRES", "true");
788     }
789     else
790     {
791       // special - made easy to edit a property file to disable questionnaires
792       // by just adding the given line
793       Cache.removeProperty("NOQUESTIONNAIRES");
794     }
795
796     /*
797      * Save Output settings
798      */
799     Cache.applicationProperties.setProperty("BLC_JVSUFFIX",
800             Boolean.toString(blcjv.isSelected()));
801     Cache.applicationProperties.setProperty("CLUSTAL_JVSUFFIX",
802             Boolean.toString(clustaljv.isSelected()));
803     Cache.applicationProperties.setProperty("FASTA_JVSUFFIX",
804             Boolean.toString(fastajv.isSelected()));
805     Cache.applicationProperties.setProperty("MSF_JVSUFFIX",
806             Boolean.toString(msfjv.isSelected()));
807     Cache.applicationProperties.setProperty("PFAM_JVSUFFIX",
808             Boolean.toString(pfamjv.isSelected()));
809     Cache.applicationProperties.setProperty("PILEUP_JVSUFFIX",
810             Boolean.toString(pileupjv.isSelected()));
811     Cache.applicationProperties.setProperty("PIR_JVSUFFIX",
812             Boolean.toString(pirjv.isSelected()));
813     Cache.applicationProperties.setProperty("PIR_MODELLER",
814             Boolean.toString(modellerOutput.isSelected()));
815     Cache.applicationProperties.setProperty("EXPORT_EMBBED_BIOJSON",
816             Boolean.toString(embbedBioJSON.isSelected()));
817     jalview.io.PIRFile.useModellerOutput = modellerOutput.isSelected();
818
819     Cache.applicationProperties.setProperty("FIGURE_AUTOIDWIDTH",
820             Boolean.toString(autoIdWidth.isSelected()));
821     userIdWidth_actionPerformed();
822     Cache.applicationProperties.setProperty("FIGURE_FIXEDIDWIDTH",
823             userIdWidth.getText());
824
825     /*
826      * Save Editing settings
827      */
828     Cache.applicationProperties.setProperty("AUTO_CALC_CONSENSUS",
829             Boolean.toString(autoCalculateConsCheck.isSelected()));
830     Cache.applicationProperties.setProperty("SORT_BY_TREE",
831             Boolean.toString(sortByTree.isSelected()));
832     Cache.applicationProperties.setProperty("PAD_GAPS",
833             Boolean.toString(padGaps.isSelected()));
834
835     if (!Platform.isJS())
836     {
837       wsPrefs.updateAndRefreshWsMenuConfig(false);
838     }
839
840     /*
841      * Save Backups settings
842      */
843     Cache.applicationProperties.setProperty(BackupFiles.ENABLED,
844             Boolean.toString(enableBackupFiles.isSelected()));
845     int preset = getComboIntStringKey(backupfilesPresetsCombo);
846     Cache.applicationProperties.setProperty(BackupFiles.NS + "_PRESET", Integer.toString(preset));
847
848     if (preset == BackupFilesPresetEntry.BACKUPFILESSCHEMECUSTOM)
849     {
850       BackupFilesPresetEntry customBFPE = getBackupfilesCurrentEntry();
851       BackupFilesPresetEntry.backupfilesPresetEntriesValues.put(
852               BackupFilesPresetEntry.BACKUPFILESSCHEMECUSTOM, customBFPE);
853       Cache.applicationProperties
854               .setProperty(BackupFilesPresetEntry.CUSTOMCONFIG,
855                       customBFPE.toString());
856     }
857
858     BackupFilesPresetEntry savedBFPE = BackupFilesPresetEntry.backupfilesPresetEntriesValues
859             .get(preset);
860     Cache.applicationProperties.setProperty(
861             BackupFilesPresetEntry.SAVEDCONFIG, savedBFPE.toString());
862
863     Cache.saveProperties();
864     Desktop.instance.doConfigureStructurePrefs();
865     try
866     {
867       frame.setClosed(true);
868     } catch (Exception ex)
869     {
870     }
871   }
872
873   /**
874    * Do any necessary validation before saving settings. Return focus to the
875    * first tab which fails validation.
876    * 
877    * @return
878    */
879   private boolean validateSettings()
880   {
881     if (!validateStructure())
882     {
883       structureTab.requestFocusInWindow();
884       return false;
885     }
886     return true;
887   }
888
889   @Override
890   protected boolean validateStructure()
891   {
892     return validateChimeraPath();
893
894   }
895
896   /**
897    * DOCUMENT ME!
898    */
899   @Override
900   public void startupFileTextfield_mouseClicked()
901   {
902     // TODO: JAL-3048 not needed for Jalview-JS
903     String fileFormat = Cache.getProperty("DEFAULT_FILE_FORMAT");
904     JalviewFileChooser chooser = JalviewFileChooser
905             .forRead(Cache.getProperty("LAST_DIRECTORY"), fileFormat);
906     chooser.setFileView(new JalviewFileView());
907     chooser.setDialogTitle(
908             MessageManager.getString("label.select_startup_file"));
909
910     int value = chooser.showOpenDialog(this);
911
912     if (value == JalviewFileChooser.APPROVE_OPTION)
913     {
914       FileFormatI format = chooser.getSelectedFormat();
915       if (format != null)
916       {
917         Cache.applicationProperties.setProperty("DEFAULT_FILE_FORMAT",
918                 format.getName());
919       }
920       startupFileTextfield
921               .setText(chooser.getSelectedFile().getAbsolutePath());
922     }
923   }
924
925   /**
926    * DOCUMENT ME!
927    * 
928    * @param e
929    *          DOCUMENT ME!
930    */
931   @Override
932   public void cancel_actionPerformed(ActionEvent e)
933   {
934     try
935     {
936       if (!Platform.isJS())
937       {
938         wsPrefs.updateWsMenuConfig(true);
939         wsPrefs.refreshWs_actionPerformed(e);
940       }
941       frame.setClosed(true);
942     } catch (Exception ex)
943     {
944     }
945   }
946
947   /**
948    * DOCUMENT ME!
949    * 
950    * @param e
951    *          DOCUMENT ME!
952    */
953   @Override
954   public void annotations_actionPerformed(ActionEvent e)
955   {
956     conservation.setEnabled(annotations.isSelected());
957     quality.setEnabled(annotations.isSelected());
958     identity.setEnabled(annotations.isSelected());
959     showOccupancy.setEnabled(annotations.isSelected());
960     showGroupConsensus.setEnabled(annotations.isSelected());
961     showGroupConservation.setEnabled(annotations.isSelected());
962     showConsensHistogram.setEnabled(annotations.isSelected()
963             && (identity.isSelected() || showGroupConsensus.isSelected()));
964     showConsensLogo.setEnabled(annotations.isSelected()
965             && (identity.isSelected() || showGroupConsensus.isSelected()));
966   }
967
968   @Override
969   public void newLink_actionPerformed(ActionEvent e)
970   {
971     GSequenceLink link = new GSequenceLink();
972     boolean valid = false;
973     while (!valid)
974     {
975       if (JvOptionPane.showInternalConfirmDialog(Desktop.desktop, link,
976               MessageManager.getString("label.new_sequence_url_link"),
977               JvOptionPane.OK_CANCEL_OPTION, -1,
978               null) == JvOptionPane.OK_OPTION)
979       {
980         if (link.checkValid())
981         {
982           if (((UrlLinkTableModel) linkUrlTable.getModel())
983                   .isUniqueName(link.getName()))
984           {
985             ((UrlLinkTableModel) linkUrlTable.getModel())
986                     .insertRow(link.getName(), link.getURL());
987             valid = true;
988           }
989           else
990           {
991             link.notifyDuplicate();
992             continue;
993           }
994         }
995       }
996       else
997       {
998         break;
999       }
1000     }
1001   }
1002
1003   @Override
1004   public void editLink_actionPerformed(ActionEvent e)
1005   {
1006     GSequenceLink link = new GSequenceLink();
1007
1008     int index = linkUrlTable.getSelectedRow();
1009     if (index == -1)
1010     {
1011       // button no longer enabled if row is not selected
1012       Cache.log.debug("Edit with no row selected in linkUrlTable");
1013       return;
1014     }
1015
1016     int nameCol = ((UrlLinkTableModel) linkUrlTable.getModel())
1017             .getNameColumn();
1018     int urlCol = ((UrlLinkTableModel) linkUrlTable.getModel())
1019             .getUrlColumn();
1020     String oldName = linkUrlTable.getValueAt(index, nameCol).toString();
1021     link.setName(oldName);
1022     link.setURL(linkUrlTable.getValueAt(index, urlCol).toString());
1023
1024     boolean valid = false;
1025     while (!valid)
1026     {
1027       if (JvOptionPane.showInternalConfirmDialog(Desktop.desktop, link,
1028               MessageManager.getString("label.edit_sequence_url_link"),
1029               JvOptionPane.OK_CANCEL_OPTION, -1,
1030               null) == JvOptionPane.OK_OPTION)
1031       {
1032         if (link.checkValid())
1033         {
1034           if ((oldName.equals(link.getName()))
1035                   || (((UrlLinkTableModel) linkUrlTable.getModel())
1036                           .isUniqueName(link.getName())))
1037           {
1038             linkUrlTable.setValueAt(link.getName(), index, nameCol);
1039             linkUrlTable.setValueAt(link.getURL(), index, urlCol);
1040             valid = true;
1041           }
1042           else
1043           {
1044             link.notifyDuplicate();
1045             continue;
1046           }
1047         }
1048       }
1049       else
1050       {
1051         break;
1052       }
1053     }
1054   }
1055
1056   @Override
1057   public void deleteLink_actionPerformed(ActionEvent e)
1058   {
1059     int index = linkUrlTable.getSelectedRow();
1060     int modelIndex = -1;
1061     if (index == -1)
1062     {
1063       // button no longer enabled if row is not selected
1064       Cache.log.debug("Delete with no row selected in linkUrlTable");
1065       return;
1066     }
1067     else
1068     {
1069       modelIndex = linkUrlTable.convertRowIndexToModel(index);
1070     }
1071
1072     // make sure we use the model index to delete, and not the table index
1073     ((UrlLinkTableModel) linkUrlTable.getModel()).removeRow(modelIndex);
1074   }
1075
1076   @Override
1077   public void defaultBrowser_mouseClicked(MouseEvent e)
1078   {
1079     // TODO: JAL-3048 not needed for j2s
1080     if (!Platform.isJS()) // BH 2019
1081     /**
1082      * Java only
1083      * 
1084      * @j2sIgnore
1085      */
1086     {
1087       JFileChooser chooser = new JFileChooser(".");
1088       chooser.setDialogTitle(
1089               MessageManager.getString("label.select_default_browser"));
1090
1091       int value = chooser.showOpenDialog(this);
1092
1093       if (value == JFileChooser.APPROVE_OPTION)
1094       {
1095         defaultBrowser.setText(chooser.getSelectedFile().getAbsolutePath());
1096       }
1097     }
1098   }
1099
1100   /*
1101    * (non-Javadoc)
1102    * 
1103    * @see
1104    * jalview.jbgui.GPreferences#showunconserved_actionPerformed(java.awt.event
1105    * .ActionEvent)
1106    */
1107   @Override
1108   protected void showunconserved_actionPerformed(ActionEvent e)
1109   {
1110     // TODO Auto-generated method stub
1111     super.showunconserved_actionPerformed(e);
1112   }
1113
1114   public static List<String> getGroupURLLinks()
1115   {
1116     return groupURLLinks;
1117   }
1118
1119   @Override
1120   public void minColour_actionPerformed(JPanel panel)
1121   {
1122     JalviewColourChooser.showColourChooser(this,
1123             MessageManager.getString("label.select_colour_minimum_value"),
1124             panel);
1125   }
1126
1127   @Override
1128   public void maxColour_actionPerformed(JPanel panel)
1129   {
1130     JalviewColourChooser.showColourChooser(this,
1131             MessageManager.getString("label.select_colour_maximum_value"),
1132             panel);
1133   }
1134
1135   @Override
1136   public void gapColour_actionPerformed(JPanel gap)
1137   {
1138     if (!useLegacyGap.isSelected())
1139     {
1140       JalviewColourChooser.showColourChooser(this,
1141               MessageManager.getString("label.select_gap_colour"),
1142               gap);
1143     }
1144   }
1145
1146   @Override
1147   public void hiddenColour_actionPerformed(JPanel hidden)
1148   {
1149     JalviewColourChooser.showColourChooser(this,
1150             MessageManager.getString("label.select_hidden_colour"),
1151             hidden);
1152   }
1153
1154   @Override
1155   protected void useLegacyGaps_actionPerformed(ActionEvent e)
1156   {
1157     boolean enabled = useLegacyGap.isSelected();
1158     if (enabled)
1159     {
1160       gapColour.setBackground(
1161               jalview.renderer.OverviewResColourFinder.OVERVIEW_DEFAULT_LEGACY_GAP);
1162     }
1163     else
1164     {
1165       gapColour.setBackground(
1166               jalview.renderer.OverviewResColourFinder.OVERVIEW_DEFAULT_GAP);
1167     }
1168     gapColour.setEnabled(!enabled);
1169     gapLabel.setEnabled(!enabled);
1170   }
1171
1172   @Override
1173   protected void resetOvDefaults_actionPerformed(ActionEvent e)
1174   {
1175     useLegacyGap.setSelected(false);
1176     useLegacyGaps_actionPerformed(null);
1177     showHiddenAtStart.setSelected(false);
1178     hiddenColour.setBackground(
1179             jalview.renderer.OverviewResColourFinder.OVERVIEW_DEFAULT_HIDDEN);
1180   }
1181
1182   @Override
1183   protected void userIdWidth_actionPerformed()
1184   {
1185     try
1186     {
1187       String val = userIdWidth.getText().trim();
1188       if (val.length() > 0)
1189       {
1190         Integer iw = Integer.parseInt(val);
1191         if (iw.intValue() < 12)
1192         {
1193           throw new NumberFormatException();
1194         }
1195         userIdWidth.setText(iw.toString());
1196       }
1197     } catch (NumberFormatException x)
1198     {
1199       userIdWidth.setText("");
1200       JvOptionPane.showInternalMessageDialog(Desktop.desktop,
1201               MessageManager
1202                       .getString("warn.user_defined_width_requirements"),
1203               MessageManager.getString("label.invalid_id_column_width"),
1204               JvOptionPane.WARNING_MESSAGE);
1205     }
1206   }
1207
1208   @Override
1209   protected void autoIdWidth_actionPerformed()
1210   {
1211     userIdWidth.setEnabled(!autoIdWidth.isSelected());
1212     userIdWidthlabel.setEnabled(!autoIdWidth.isSelected());
1213   }
1214
1215   /**
1216    * Returns true if chimera path is to a valid executable, else show an error
1217    * dialog.
1218    */
1219   private boolean validateChimeraPath()
1220   {
1221     if (chimeraPath.getText().trim().length() > 0)
1222     {
1223       File f = new File(chimeraPath.getText());
1224       if (!f.canExecute())
1225       {
1226         JvOptionPane.showInternalMessageDialog(Desktop.desktop,
1227                 MessageManager.getString("label.invalid_chimera_path"),
1228                 MessageManager.getString("label.invalid_name"),
1229                 JvOptionPane.ERROR_MESSAGE);
1230         return false;
1231       }
1232     }
1233     return true;
1234   }
1235
1236   /**
1237    * If Chimera is selected, check it can be found on default or user-specified
1238    * path, if not show a warning/help dialog.
1239    */
1240   @Override
1241   protected void structureViewer_actionPerformed(String selectedItem)
1242   {
1243     if (!selectedItem.equals(ViewerType.CHIMERA.name()))
1244     {
1245       return;
1246     }
1247     boolean found = false;
1248
1249     /*
1250      * Try user-specified and standard paths for Chimera executable.
1251      */
1252     List<String> paths = StructureManager.getChimeraPaths();
1253     paths.add(0, chimeraPath.getText());
1254     for (String path : paths)
1255     {
1256       if (new File(path.trim()).canExecute())
1257       {
1258         found = true;
1259         break;
1260       }
1261     }
1262     if (!found)
1263     {
1264       String[] options = { "OK", "Help" };
1265       int showHelp = JvOptionPane.showInternalOptionDialog(Desktop.desktop,
1266               JvSwingUtils.wrapTooltip(true,
1267                       MessageManager.getString("label.chimera_missing")),
1268               "", JvOptionPane.YES_NO_OPTION, JvOptionPane.WARNING_MESSAGE,
1269               null, options, options[0]);
1270       if (showHelp == JvOptionPane.NO_OPTION)
1271       {
1272         try
1273         {
1274           Help.showHelpWindow(HelpId.StructureViewer);
1275         } catch (HelpSetException e)
1276         {
1277           e.printStackTrace();
1278         }
1279       }
1280     }
1281   }
1282
1283   public class OptionsParam
1284   {
1285     private String name;
1286
1287     private String code;
1288
1289     public OptionsParam(String name, String code)
1290     {
1291       this.name = name;
1292       this.code = code;
1293     }
1294
1295     public String getName()
1296     {
1297       return name;
1298     }
1299
1300     public void setName(String name)
1301     {
1302       this.name = name;
1303     }
1304
1305     public String getCode()
1306     {
1307       return code;
1308     }
1309
1310     public void setCode(String code)
1311     {
1312       this.code = code;
1313     }
1314
1315     @Override
1316     public String toString()
1317     {
1318       return name;
1319     }
1320
1321     @Override
1322     public boolean equals(Object that)
1323     {
1324       if (!(that instanceof OptionsParam))
1325       {
1326         return false;
1327       }
1328       return this.code.equalsIgnoreCase(((OptionsParam) that).code);
1329     }
1330
1331     @Override
1332     public int hashCode()
1333     {
1334       return name.hashCode() + code.hashCode();
1335     }
1336   }
1337
1338   private class UrlListSelectionHandler implements ListSelectionListener
1339   {
1340
1341     @Override
1342     public void valueChanged(ListSelectionEvent e)
1343     {
1344       ListSelectionModel lsm = (ListSelectionModel) e.getSource();
1345
1346       int index = lsm.getMinSelectionIndex();
1347       if (index == -1)
1348       {
1349         // no selection, so disable delete/edit buttons
1350         editLink.setEnabled(false);
1351         deleteLink.setEnabled(false);
1352         return;
1353       }
1354       int modelIndex = linkUrlTable.convertRowIndexToModel(index);
1355
1356       // enable/disable edit and delete link buttons
1357       if (((UrlLinkTableModel) linkUrlTable.getModel())
1358               .isRowDeletable(modelIndex))
1359       {
1360         deleteLink.setEnabled(true);
1361       }
1362       else
1363       {
1364         deleteLink.setEnabled(false);
1365       }
1366
1367       if (((UrlLinkTableModel) linkUrlTable.getModel())
1368               .isRowEditable(modelIndex))
1369       {
1370         editLink.setEnabled(true);
1371       }
1372       else
1373       {
1374         editLink.setEnabled(false);
1375       }
1376     }
1377   }
1378 }