source: trunk/gli/src/org/greenstone/gatherer/cdm/LanguageManager.java@ 13195

Last change on this file since 13195 was 13195, checked in by kjdon, 17 years ago

quan's changes to remove blue borders around buttons and comboboxes on macs
  • Property svn:keywords set to Author Date Id Revision
File size: 26.0 KB
Line 
1/**
2 *#########################################################################
3 *
4 * A component of the Gatherer application, part of the Greenstone digital
5 * library suite from the New Zealand Digital Library Project at the
6 * University of Waikato, New Zealand.
7 *
8 * Author: John Thompson, Greenstone Digital Library, University of Waikato
9 *
10 * Copyright (C) 1999 New Zealand Digital Library Project
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 *########################################################################
26 */
27package org.greenstone.gatherer.cdm;
28
29
30import java.awt.*;
31import java.awt.event.*;
32import java.io.*;
33import java.util.*;
34import javax.swing.*;
35import javax.swing.border.*;
36import javax.swing.event.*;
37import org.greenstone.gatherer.Configuration;
38import org.greenstone.gatherer.DebugStream;
39import org.greenstone.gatherer.Dictionary;
40import org.greenstone.gatherer.Gatherer;
41import org.greenstone.gatherer.gui.GLIButton;
42import org.greenstone.gatherer.metadata.MetadataElement;
43import org.greenstone.gatherer.metadata.MetadataSetManager;
44import org.greenstone.gatherer.util.CheckList;
45import org.greenstone.gatherer.util.CheckListEntry;
46import org.greenstone.gatherer.util.JarTools;
47import org.greenstone.gatherer.util.StaticStrings;
48import org.greenstone.gatherer.util.XMLTools;
49import org.w3c.dom.*;
50
51/** This class manages the language commands, remembering both a list of languages to build indexes in, plus the default language.
52 * @author John Thompson, Greenstone Digital Library, University of Waikato
53 * @version 2.3
54 */
55public class LanguageManager
56 extends DOMProxyListModel {
57
58 static public Document LANGUAGES_DOCUMENT = XMLTools.parseXMLFile("xml/languages.xml", true);
59
60 static final private Dimension COMPONENT_SIZE = new Dimension(125,25);
61
62 /** The visual controls for this manager. */
63 private Control controls = null;
64 /** A reference to this class as a model, for the inner controls class. */
65 private DOMProxyListModel model = null;
66 /** A hashtable of code->name mappings of known languages. */
67 private LinkedHashMap known_languages = null;
68 /** The default language object. */
69 private Language default_language = null;
70 /** The language metadata element - specifies which metadata the
71 language should be read from to determine the partitons */
72 private Element language_metadata = null;
73 /** Constructor. */
74 public LanguageManager(Element languages_element) {
75 super(languages_element, StaticStrings.LANGUAGE_ELEMENT, new Language());
76
77 DebugStream.println("LanguageManager: " + getSize() + " languages parsed.");
78
79 this.model = this;
80 // Retrieve the default language
81 NodeList default_language_elements = CollectionConfiguration.getElementsByTagName(StaticStrings.LANGUAGE_DEFAULT_ELEMENT);
82 if(default_language_elements.getLength() > 0) {
83 default_language = new Language((Element)default_language_elements.item(0));
84 }
85
86 // Retrieve the language metadata
87 language_metadata = CollectionDesignManager.collect_config.getLanguageMetadata();
88 // Load a series of code->language mappings into known_languages, by reading from the 'languages.xml' file, which is essentially a subset of the ISO 639 Standard.
89 known_languages = new LinkedHashMap();
90 NodeList language_elements = LANGUAGES_DOCUMENT.getDocumentElement().getElementsByTagName(StaticStrings.LANGUAGE_ELEMENT);
91 for(int i = 0; i < language_elements.getLength(); i++) {
92 Element language_element = (Element) language_elements.item(i);
93 String code = language_element.getAttribute(StaticStrings.CODE_ATTRIBUTE);
94 String name = language_element.getAttribute(StaticStrings.NAME_ATTRIBUTE);
95 known_languages.put(code.toLowerCase(), name);
96 name = null;
97 code = null;
98 language_element = null;
99 }
100 }
101
102 /** Method to add a new language.
103 * @param language The <strong>Language</strong> to add.
104 * @see org.greenstone.gatherer.Gatherer
105 * @see org.greenstone.gatherer.collection.CollectionManager
106 */
107 private void addLanguage(Language language) {
108 if(!contains(language)) {
109 // need to add a pseudo metadata
110 CollectionMeta metadatum = new CollectionMeta(StaticStrings.STOP_CHARACTER + language.getCode());
111 metadatum.setValue(language.getName());
112 CollectionDesignManager.collectionmeta_manager.addMetadatum(metadatum);
113 add(getSize(), language);
114 }
115 }
116
117 public void destroy() {
118 if(controls != null) {
119 controls.destroy();
120 controls = null;
121 }
122 known_languages.clear();
123 known_languages = null;
124 default_language = null;
125 }
126
127 /** Method to retrieve the control for this manager.
128 * @return the Control for editing the language partitions
129 */
130 public Control getControls() {
131 if(controls == null) {
132 // Build controls
133 controls = new LanguageControl();
134 }
135 return controls;
136 }
137
138 /** Method to retrieve a certain language object by its code.
139 * @param code The two letter code of a language, as a <strong>String</strong>.
140 * @return The <strong>Language</strong> that matches the given code, or <i>null</i> if no such language exists.
141 */
142 public Language getLanguage(String code) {
143 int size = getSize();
144 for(int i = 0; i < size; i++) {
145 Language language = (Language) getElementAt(i);
146 if(language.getCode().equals(code)) {
147 return language;
148 }
149 }
150 return null;
151 }
152
153 public ArrayList getLanguages() {
154 return children();
155 }
156
157 /** Method to return a list of the known language codes.
158 * @return an ArrayList containing the series of known language codes as per the languages.dat file
159 */
160 public ArrayList getLanguageCodes() {
161 return new ArrayList(known_languages.keySet());
162 }
163
164 public String getLanguageName(String code) {
165 return (String) known_languages.get(code);
166 }
167
168 /** Called when the detail mode has changed which in turn may cause several design elements to be available/hidden
169 * @param mode the new mode as an int
170 */
171 public void modeChanged(int mode) {
172
173 }
174
175 private int moveLanguage(Language lang, boolean move_up)
176 {
177 // Determine the current position of the language
178 int position = indexOf(lang);
179 int new_position;
180
181 // Attempt to move the language up
182 if (move_up) {
183 // Check it's not already at the top
184 if (position == 0) {
185 return position;
186 }
187
188 // This automatically removes the language first, as an Element can only exist once in a particular document
189 new_position = position - 1;
190 addBefore(lang, (Language) getElementAt(new_position));
191 }
192
193 // Attempt to move the language down
194 else {
195 // Check it's not already at the bottom
196 if (position == (getSize()) - 1) {
197 return position;
198 }
199
200 // This automatically removes the language first, as an Element can only exist once in a particular document
201 new_position = position + 1;
202 addAfter(lang, (Language) getElementAt(new_position));
203 }
204
205 return new_position;
206 }
207
208 /** Method to remove a certain language.
209 * @param language The <strong>Language</strong> to remove.
210 * @see org.greenstone.gatherer.Gatherer
211 * @see org.greenstone.gatherer.collection.CollectionManager
212 */
213 private void removeLanguage(Language language) {
214 remove(language);
215 // Remove any collection metadata for this language
216 CollectionDesignManager.collectionmeta_manager.removeMetadata(StaticStrings.STOP_CHARACTER + language.getCode());
217 if(default_language != null && default_language.equals(language)) {
218 setDefault(null);
219 }
220 }
221
222 private void replaceLanguage(Language old_language, Language new_language) {
223 // Remove old lang collection meta
224 CollectionDesignManager.collectionmeta_manager.removeMetadata(StaticStrings.STOP_CHARACTER + old_language.getCode());
225 // Add new one
226 CollectionMeta metadatum = new CollectionMeta(StaticStrings.STOP_CHARACTER + new_language.getCode());
227 metadatum.setValue(new_language.getName());
228 CollectionDesignManager.collectionmeta_manager.addMetadatum(metadatum);
229 if(default_language != null && default_language.equals(old_language)) {
230 setDefault(new_language);
231 }
232
233 // get the position of the old one
234 int position = indexOf(old_language);
235 remove(old_language);
236 add(position, new_language);
237 }
238
239
240 /** Method to set the default language.
241 * @param language The <strong>Language</strong> to use as a default, or <i>null</i> for no default.
242 * @see org.greenstone.gatherer.Gatherer
243 * @see org.greenstone.gatherer.collection.CollectionManager
244 */
245 public void setDefault(Language language) {
246 if(language != null) {
247 if(default_language == null) {
248 // Create the default index element, and place immediately after indexes element.
249 Element default_language_element = root.getOwnerDocument().createElement(StaticStrings.LANGUAGE_DEFAULT_ELEMENT);
250 default_language = new Language(default_language_element);
251 Node target_node = CollectionConfiguration.findInsertionPoint(default_language_element);
252 if(target_node != null) {
253 root.getOwnerDocument().getDocumentElement().insertBefore(default_language_element, target_node);
254 }
255 else {
256 root.getOwnerDocument().getDocumentElement().appendChild(default_language_element);
257 }
258 }
259 default_language.setAssigned(true);
260 default_language.setCode(language.getCode());
261 }
262 else {
263 if(default_language != null) {
264 default_language.setAssigned(false);
265 }
266 }
267 }
268
269
270 /** This class represents the visual component of the Language Manager. */
271 private class LanguageControl
272 extends JPanel
273 implements Control {
274 /** The list of available languages */
275 private CheckList language_list = null;
276 /** The button to add a new language support. */
277 private JButton add_button = null;
278 /** The button to replace a language support. */
279 private JButton replace_button = null;
280 /** The button to remove a supported language. */
281 private JButton remove_button = null;
282 /** button to move a language up in the list */
283 private JButton move_down_button;
284 /** button to move a language down in the list */
285 private JButton move_up_button;
286 /** The button to set the current language as the default one. */
287 private JButton set_default_button = null;
288 /** A list of currently supported languages. */
289 private JList selected_languages_list = null;
290 /** A list of metadata elements that may hold the language metadata */
291 private JComboBox language_metadata_combo = null;
292
293 /** Constructor.
294 * @see org.greenstone.gatherer.cdm.LanguageManager.LanguageControl.AddListener
295 * @see org.greenstone.gatherer.cdm.LanguageManager.LanguageControl.ClearDefaultListener
296 * @see org.greenstone.gatherer.cdm.LanguageManager.LanguageControl.ListListener
297 * @see org.greenstone.gatherer.cdm.LanguageManager.LanguageControl.RemoveListener
298 * @see org.greenstone.gatherer.cdm.LanguageManager.LanguageControl.SelectorListener
299 * @see org.greenstone.gatherer.cdm.LanguageManager.LanguageControl.SetDefaultListener
300 */
301 public LanguageControl() {
302 super();
303 // Creation.
304 JPanel center_panel = new JPanel();
305
306 JLabel selected_languages_list_label = new JLabel(Dictionary.get("CDM.LanguageManager.Assigned_Languages"));
307 selected_languages_list = new JList(model);
308 selected_languages_list.setCellRenderer(new MyLanguageListCellRenderer());
309 selected_languages_list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
310 selected_languages_list.setVisibleRowCount(5);
311
312 JPanel control_panel = new JPanel();
313 JLabel selector_label = new JLabel(Dictionary.get("CDM.LanguageManager.Selector"));
314
315 language_metadata_combo = new JComboBox(MetadataSetManager.getEveryMetadataSetElement().toArray());
316 language_metadata_combo.setOpaque(false);
317 language_metadata_combo.setToolTipText(Dictionary.get("CDM.LanguageManager.LanguageMetadata_Tooltip"));
318 JLabel language_metadata_label = new JLabel(Dictionary.get("CDM.LanguageManager.LanguageMetadata"));
319 String current_value = "ex.Language";
320 if (language_metadata.getAttribute(StaticStrings.ASSIGNED_ATTRIBUTE).equals(StaticStrings.TRUE_STR) && !language_metadata.getAttribute(StaticStrings.NAME_ATTRIBUTE).equals("")) {
321 current_value = language_metadata.getAttribute(StaticStrings.NAME_ATTRIBUTE);
322 }
323 ArgumentControl.selectValue(language_metadata_combo, current_value);
324 language_list = new CheckList(false);
325 language_list.setListData(getLanguageCodes());
326 language_list.setToolTipText(Dictionary.get("CDM.LanguageManager.Selector_Tooltip"));
327 language_list.setCellRenderer(new LanguageCheckListCellRenderer());
328
329 JPanel movement_pane = new JPanel();
330 move_up_button = new GLIButton(Dictionary.get("CDM.Move.Move_Up"), JarTools.getImage("arrow-up.gif"), Dictionary.get("CDM.Move.Move_Up_Tooltip"));
331 move_up_button.setEnabled(false);
332
333 move_down_button = new GLIButton(Dictionary.get("CDM.Move.Move_Down"), JarTools.getImage("arrow-down.gif"), Dictionary.get("CDM.Move.Move_Down_Tooltip"));
334 move_down_button.setEnabled(false);
335
336 set_default_button = new GLIButton(Dictionary.get("CDM.LanguageManager.Set_Default"), Dictionary.get("CDM.LanguageManager.Set_Default_Tooltip"));
337 set_default_button.setEnabled(false);
338
339 JPanel button_panel = new JPanel();
340
341 add_button = new GLIButton(Dictionary.get("CDM.SubcollectionIndexManager.Add_Subindex"), Dictionary.get("CDM.LanguageManager.Add_Tooltip"));
342 add_button.setEnabled(false);
343
344 replace_button = new GLIButton(Dictionary.get("CDM.SubcollectionIndexManager.Replace_Subindex"), Dictionary.get("CDM.LanguageManager.Replace_Tooltip"));
345 replace_button.setEnabled(false);
346
347 remove_button = new GLIButton(Dictionary.get("CDM.SubcollectionIndexManager.Remove_Subindex"), Dictionary.get("CDM.LanguageManager.Remove_Tooltip"));
348 remove_button.setEnabled(false);
349
350 // Set up and connect listeners.
351 add_button.addActionListener(new AddListener());
352 add_button.addActionListener(CollectionDesignManager.buildcol_change_listener);
353 move_down_button.addActionListener(new MoveListener(false));
354 move_down_button.addActionListener(CollectionDesignManager.buildcol_change_listener);
355 move_up_button.addActionListener(new MoveListener(true));
356 move_up_button.addActionListener(CollectionDesignManager.buildcol_change_listener);
357 remove_button.addActionListener(new RemoveListener());
358 remove_button.addActionListener(CollectionDesignManager.buildcol_change_listener);
359 replace_button.addActionListener(new ReplaceListener());
360 replace_button.addActionListener(CollectionDesignManager.buildcol_change_listener);
361
362 language_list.addListSelectionListener(new LanguageListListener());
363 language_metadata_combo.addActionListener(new ActionListener() {
364 public void actionPerformed(ActionEvent event) {
365 String value = ((MetadataElement)language_metadata_combo.getSelectedItem()).getFullName();
366 language_metadata.setAttribute(StaticStrings.ASSIGNED_ATTRIBUTE, StaticStrings.TRUE_STR);
367 language_metadata.setAttribute(StaticStrings.NAME_ATTRIBUTE, value);
368 }
369 });
370 set_default_button.addActionListener(new SetDefaultListener());
371 set_default_button.addActionListener(CollectionDesignManager.buildcol_change_listener);
372 selected_languages_list.addListSelectionListener(new AssignedListListener());
373
374 // Layout components
375 button_panel.setLayout(new GridLayout(1,3));
376 button_panel.add(add_button);
377 button_panel.add(replace_button);
378 button_panel.add(remove_button);
379
380 JPanel metadata_panel = new JPanel();
381 metadata_panel.setLayout(new BorderLayout());
382 JPanel inner_panel = new JPanel();
383 inner_panel.setLayout(new BorderLayout(10,10));
384 inner_panel.add(language_metadata_label, BorderLayout.WEST);
385 inner_panel.add(language_metadata_combo, BorderLayout.CENTER);
386 metadata_panel.add(new JPanel(), BorderLayout.CENTER);
387 metadata_panel.add(inner_panel, BorderLayout.EAST);
388
389 movement_pane.setBorder(BorderFactory.createEmptyBorder(0,2,0,0));
390 movement_pane.setLayout(new GridLayout(3,1));
391 movement_pane.add(move_up_button);
392 movement_pane.add(move_down_button);
393 movement_pane.add(set_default_button);
394
395 control_panel.setBorder(BorderFactory.createEmptyBorder(5,0,0,0));
396 control_panel.setLayout(new BorderLayout());
397 control_panel.add(selector_label, BorderLayout.WEST);
398 control_panel.add(new JScrollPane(language_list), BorderLayout.CENTER);
399 control_panel.add(button_panel, BorderLayout.SOUTH);
400
401 center_panel.setLayout(new BorderLayout());
402 center_panel.add(selected_languages_list_label, BorderLayout.NORTH);
403 center_panel.add(new JScrollPane(selected_languages_list), BorderLayout.CENTER);
404 center_panel.add(movement_pane, BorderLayout.EAST);
405
406 JPanel top_panel = new JPanel();
407 top_panel.setLayout(new BorderLayout());
408 top_panel.add(metadata_panel, BorderLayout.NORTH);
409 top_panel.add(center_panel, BorderLayout.SOUTH);
410
411 setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
412 setLayout(new BorderLayout());
413 add(top_panel, BorderLayout.NORTH);
414 add(control_panel, BorderLayout.CENTER);
415 }
416
417 /** Destructor. */
418 public void destroy() {
419 }
420
421 public void gainFocus() {
422 }
423
424 public void loseFocus() {
425 }
426
427
428 private void clearControls() {
429 selected_languages_list.clearSelection();
430 language_list.clearTicked();
431 add_button.setEnabled(false);
432 remove_button.setEnabled(false);
433 replace_button.setEnabled(false);
434 set_default_button.setEnabled(false);
435 move_down_button.setEnabled(false);
436 move_up_button.setEnabled(false);
437
438 }
439
440 private void updateControlsWithSelectedLanguage()
441 {
442 Language selected_lang = (Language) selected_languages_list.getSelectedValue();
443 if (selected_lang == null) {
444 clearControls();
445 return;
446 }
447
448 // Display the selected subcollection index's sources
449 language_list.clearTicked();
450 language_list.setTickedObjects(selected_lang.getCode().split(","));
451
452 }
453
454 private void validateButtons() {
455 boolean add_enabled = false;
456 boolean replace_enabled = false;
457
458 if (!language_list.isNothingTicked()) {
459 // Create a dummy Langauge and see if its in the collection
460 ArrayList langs = language_list.getTicked();
461 StringBuffer code_str = new StringBuffer();
462 boolean first = true;
463 for (int i=0; i<langs.size(); i++) {
464 if (!first) {
465 code_str.append(",");
466 } else {
467 first = false;
468 }
469 code_str.append(langs.get(i));
470 }
471 String lang_str = code_str.toString();
472
473 if (!model.contains(lang_str)) {
474 add_enabled = true;
475 if (!selected_languages_list.isSelectionEmpty()) {
476 replace_enabled = true;
477 }
478 }
479
480 }
481 add_button.setEnabled(add_enabled);
482 replace_button.setEnabled(replace_enabled);
483 }
484
485 /** Listens for actions apon the 'add' button in the LanguageManager controls, and if detected calls the add method of the manager with a newly created language. */
486 private class AddListener
487 implements ActionListener {
488 /** Add a new language support.
489 * @param event an ActionEvent
490 * @see org.greenstone.gatherer.cdm.Language
491 */
492 public void actionPerformed(ActionEvent event) {
493 if (!language_list.isNothingTicked()) {
494 addLanguage(new Language(language_list.getTicked()));
495 clearControls();
496 }
497 }
498 }
499
500 /** Listens for actions apon the 'remove' button in the LanguageManager controls, and if detected calls the remove method of the manager with the language selected for removal. */
501 private class RemoveListener
502 implements ActionListener {
503 /** Remove the currently selected language, if any.
504 * @param event An <strong>ActionEvent</strong>.
505 * @see org.greenstone.gatherer.cdm.Language
506 */
507 public void actionPerformed(ActionEvent event) {
508 Language delete_me = (Language)selected_languages_list.getSelectedValue();
509 if(delete_me != null) {
510 removeLanguage(delete_me);
511 }
512 }
513 }
514
515 private class ReplaceListener
516 implements ActionListener {
517
518 public void actionPerformed(ActionEvent event) {
519 if (selected_languages_list.isSelectionEmpty() || language_list.isNothingTicked()) {
520 // This should never happen, but just in case...
521 replace_button.setEnabled(false);
522 return;
523 }
524 Language old_language = (Language) selected_languages_list.getSelectedValue();
525 Language new_language = new Language(language_list.getTicked());
526 replaceLanguage(old_language, new_language);
527
528 }
529 }
530
531 private class LanguageListListener
532 implements ListSelectionListener {
533
534 public void valueChanged(ListSelectionEvent event) {
535 if (event.getValueIsAdjusting()) {
536 return;
537 }
538 validateButtons();
539 }
540 }
541
542 /** Listens for actions apon the 'set default' button in the LanguageManager controls, and if detected calls the <i>setDefault()</i> method of the manager with the language selected for default. */
543 private class SetDefaultListener
544 implements ActionListener {
545 /** Set the default index to the one currently selected, if any.
546 * @param event An <strong>ActionEvent</strong>.
547 * @see org.greenstone.gatherer.cdm.Language
548 */
549 public void actionPerformed(ActionEvent event) {
550 Language selected_language = (Language) selected_languages_list.getSelectedValue();
551 if(selected_language != null) {
552 setDefault(selected_language);
553 // This should cause a repaint of just the desired row
554 selected_languages_list.setSelectedValue(selected_language, true);
555 }
556 set_default_button.setEnabled(false);
557 }
558 }
559
560 private class MoveListener
561 implements ActionListener
562 {
563 private boolean move_up;
564
565 public MoveListener(boolean move_up)
566 {
567 this.move_up = move_up;
568 }
569
570 public void actionPerformed(ActionEvent event)
571 {
572 // Retrieve the selected language
573 Language language = (Language) selected_languages_list.getSelectedValue();
574 if (language != null) {
575 int new_position = moveLanguage(language, move_up);
576 // Ensure the language that moved is still selected
577 selected_languages_list.setSelectedIndex(new_position);
578 }
579 }
580 }
581
582
583 /** Listens for selections within the list on the LanguageManager controls, and if a change is detected enables, or disables, controls appropriately. */
584 private class AssignedListListener
585 implements ListSelectionListener {
586 /** Enable or disable controls depending on the current list selection.
587 * @param event A <strong>ListSelectionEvent</strong>.
588 */
589 public void valueChanged(ListSelectionEvent event) {
590 if (event.getValueIsAdjusting()) {
591 return;
592 }
593 if(selected_languages_list.isSelectionEmpty()) {
594 clearControls();
595 return;
596 }
597
598 int i = selected_languages_list.getSelectedIndex();
599 int size = selected_languages_list.getModel().getSize();
600 Language selected_lang = (Language)selected_languages_list.getSelectedValue();
601 remove_button.setEnabled(true);
602 replace_button.setEnabled(false);
603 add_button.setEnabled(false);
604 set_default_button.setEnabled(default_language == null || !default_language.equals(selected_lang));
605
606 if (i > 0) {
607 move_up_button.setEnabled(true);
608 }
609 else {
610 move_up_button.setEnabled(false);
611 }
612 if (i < size-1){
613 move_down_button.setEnabled(true);
614 }
615 else {
616 move_down_button.setEnabled(false);
617 }
618 updateControlsWithSelectedLanguage();
619 }
620 }
621
622 private class MyLanguageListCellRenderer
623 extends DefaultListCellRenderer
624 {
625 /** Return a component that has been configured to display the specified value. */
626 public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
627 JLabel component = (JLabel) super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
628 if (default_language != null && default_language.equals(value)) {
629 component.setText(component.getText() + " [" + Dictionary.get("CDM.LanguageManager.Default_Language")+"]");
630 }
631 return component;
632 }
633 }
634 }
635
636 /** A custom list cell renderer for producing rows which contain clickable check boxes. */
637 private class LanguageCheckListCellRenderer
638 implements ListCellRenderer
639 {
640 /** Return a component that has been configured to display the specified value. That component's paint method is then called to "render" the cell. If it is necessary to compute the dimensions of a list because the list cells do not have a fixed size, this method is called to generate a component on which getPreferredSize can be invoked.
641 * @param list The </strong>JList</strong> we're painting.
642 * @param value The value returned by list.getModel().getElementAt(index), as an <strong>Object</strong>.
643 * @param index The cells index as an <i>int</i>.
644 * @param is_selected <i>true</i> if the specified cell was selected, <i>false</i> otherwise.
645 * @param cell_has_focus <i>true</i> if and only if the specified cell has the focus.
646 * @return A <strong>Component</strong> whose paint() method will render the specified value.
647 */
648 public Component getListCellRendererComponent(JList list, Object value, int index, boolean is_selected, boolean cell_has_focus) {
649 JCheckBox checkbox = (JCheckBox) value;
650 checkbox.setBackground(list.getBackground());
651 checkbox.setForeground(list.getForeground());
652 checkbox.setBorderPainted(false);
653 checkbox.setEnabled(list.isEnabled());
654 checkbox.setFont(list.getFont());
655 checkbox.setFocusPainted(false);
656 checkbox.setBorder((is_selected) ? UIManager.getBorder("List.focusCellHighlightBorder") : new EmptyBorder(1, 1, 1, 1));
657
658 String code = (String)((CheckListEntry)list.getModel().getElementAt(index)).getObject();
659 checkbox.setText((String)known_languages.get(code));
660
661 return checkbox;
662 }
663 }
664
665}
Note: See TracBrowser for help on using the repository browser.