001// License: GPL. For details, see LICENSE file.
002package org.openstreetmap.josm.gui.dialogs.properties;
003
004import static org.openstreetmap.josm.tools.I18n.tr;
005import static org.openstreetmap.josm.tools.I18n.trn;
006
007import java.awt.BorderLayout;
008import java.awt.Component;
009import java.awt.Cursor;
010import java.awt.Dimension;
011import java.awt.FlowLayout;
012import java.awt.Font;
013import java.awt.GridBagConstraints;
014import java.awt.GridBagLayout;
015import java.awt.Toolkit;
016import java.awt.datatransfer.Clipboard;
017import java.awt.datatransfer.Transferable;
018import java.awt.event.ActionEvent;
019import java.awt.event.ActionListener;
020import java.awt.event.FocusAdapter;
021import java.awt.event.FocusEvent;
022import java.awt.event.InputEvent;
023import java.awt.event.KeyEvent;
024import java.awt.event.MouseAdapter;
025import java.awt.event.MouseEvent;
026import java.awt.event.WindowAdapter;
027import java.awt.event.WindowEvent;
028import java.awt.image.BufferedImage;
029import java.util.ArrayList;
030import java.util.Arrays;
031import java.util.Collection;
032import java.util.Collections;
033import java.util.Comparator;
034import java.util.HashMap;
035import java.util.Iterator;
036import java.util.LinkedHashMap;
037import java.util.LinkedList;
038import java.util.List;
039import java.util.Map;
040
041import javax.swing.AbstractAction;
042import javax.swing.Action;
043import javax.swing.Box;
044import javax.swing.DefaultListCellRenderer;
045import javax.swing.ImageIcon;
046import javax.swing.JCheckBoxMenuItem;
047import javax.swing.JComponent;
048import javax.swing.JLabel;
049import javax.swing.JList;
050import javax.swing.JOptionPane;
051import javax.swing.JPanel;
052import javax.swing.JPopupMenu;
053import javax.swing.KeyStroke;
054import javax.swing.table.DefaultTableModel;
055import javax.swing.text.JTextComponent;
056
057import org.openstreetmap.josm.Main;
058import org.openstreetmap.josm.actions.JosmAction;
059import org.openstreetmap.josm.actions.mapmode.DrawAction;
060import org.openstreetmap.josm.command.ChangePropertyCommand;
061import org.openstreetmap.josm.command.Command;
062import org.openstreetmap.josm.command.SequenceCommand;
063import org.openstreetmap.josm.data.osm.DataSet;
064import org.openstreetmap.josm.data.osm.OsmPrimitive;
065import org.openstreetmap.josm.data.osm.Tag;
066import org.openstreetmap.josm.data.preferences.BooleanProperty;
067import org.openstreetmap.josm.data.preferences.IntegerProperty;
068import org.openstreetmap.josm.gui.ExtendedDialog;
069import org.openstreetmap.josm.gui.mappaint.MapPaintStyles;
070import org.openstreetmap.josm.gui.tagging.TaggingPreset;
071import org.openstreetmap.josm.gui.tagging.ac.AutoCompletingComboBox;
072import org.openstreetmap.josm.gui.tagging.ac.AutoCompletionListItem;
073import org.openstreetmap.josm.gui.tagging.ac.AutoCompletionManager;
074import org.openstreetmap.josm.gui.util.GuiHelper;
075import org.openstreetmap.josm.gui.widgets.PopupMenuLauncher;
076import org.openstreetmap.josm.io.XmlWriter;
077import org.openstreetmap.josm.tools.GBC;
078import org.openstreetmap.josm.tools.Shortcut;
079import org.openstreetmap.josm.tools.WindowGeometry;
080
081/**
082 * Class that helps PropertiesDialog add and edit tag values
083 */
084 class TagEditHelper {
085    private final DefaultTableModel tagData;
086    private final Map<String, Map<String, Integer>> valueCount;
087
088    // Selection that we are editing by using both dialogs
089    Collection<OsmPrimitive> sel;
090    
091    private String changedKey;
092    private String objKey;
093
094    Comparator<AutoCompletionListItem> defaultACItemComparator = new Comparator<AutoCompletionListItem>() {
095        @Override
096        public int compare(AutoCompletionListItem o1, AutoCompletionListItem o2) {
097            return String.CASE_INSENSITIVE_ORDER.compare(o1.getValue(), o2.getValue());
098        }
099    };
100
101    private String lastAddKey = null;
102    private String lastAddValue = null;
103
104    public static final int DEFAULT_LRU_TAGS_NUMBER = 5;
105    public static final int MAX_LRU_TAGS_NUMBER = 30;
106
107    // LRU cache for recently added tags (http://java-planet.blogspot.com/2005/08/how-to-set-up-simple-lru-cache-using.html) 
108    private final Map<Tag, Void> recentTags = new LinkedHashMap<Tag, Void>(MAX_LRU_TAGS_NUMBER+1, 1.1f, true) {
109        @Override
110        protected boolean removeEldestEntry(Map.Entry<Tag, Void> eldest) {
111            return size() > MAX_LRU_TAGS_NUMBER;
112        }
113    };
114
115    TagEditHelper(DefaultTableModel propertyData, Map<String, Map<String, Integer>> valueCount) {
116        this.tagData = propertyData;
117        this.valueCount = valueCount;
118    }
119
120    /**
121     * Open the add selection dialog and add a new key/value to the table (and
122     * to the dataset, of course).
123     */
124    public void addTag() {
125        changedKey = null;
126        if (Main.map.mapMode instanceof DrawAction) {
127            sel = ((DrawAction) Main.map.mapMode).getInProgressSelection();
128        } else {
129            DataSet ds = Main.main.getCurrentDataSet();
130            if (ds == null) return;
131            sel = ds.getSelected();
132        }
133        if (sel.isEmpty()) return;
134
135        final AddTagsDialog addDialog = new AddTagsDialog();        
136        
137        addDialog.showDialog();
138        
139        addDialog.destroyActions();
140        if (addDialog.getValue() == 1)           
141            addDialog.performTagAdding();
142        else 
143            addDialog.undoAllTagsAdding();
144    }
145    
146    /**
147    * Edit the value in the tags table row
148    * @param row The row of the table from which the value is edited.
149    * @param focusOnKey Determines if the initial focus should be set on key instead of value
150    * @since 5653
151    */
152    public void editTag(final int row, boolean focusOnKey) {
153        changedKey = null;
154        sel = Main.main.getCurrentDataSet().getSelected();
155        if (sel.isEmpty()) return;
156
157        String key = tagData.getValueAt(row, 0).toString();
158        objKey=key;
159        
160        @SuppressWarnings("unchecked")
161        final EditTagDialog editDialog = new EditTagDialog(key, row, 
162                (Map<String, Integer>) tagData.getValueAt(row, 1), focusOnKey);
163        editDialog.showDialog();
164        if (editDialog.getValue() !=1 ) return;
165        editDialog.performTagEdit();
166    }
167    
168    /**
169     * If during last editProperty call user changed the key name, this key will be returned
170     * Elsewhere, returns null.
171     */
172    public String getChangedKey() {
173        return changedKey;
174    }
175    
176    public void resetChangedKey() {
177        changedKey = null;
178    }
179
180    /**
181     * For a given key k, return a list of keys which are used as keys for
182     * auto-completing values to increase the search space.
183     * @param key the key k
184     * @return a list of keys
185     */
186    private static List<String> getAutocompletionKeys(String key) {
187        if ("name".equals(key) || "addr:street".equals(key))
188            return Arrays.asList("addr:street", "name");
189        else
190            return Arrays.asList(key);
191    }
192
193    /**
194     * Load recently used tags from preferences if needed
195     */
196    public void loadTagsIfNeeded() {
197        if (PROPERTY_REMEMBER_TAGS.get() && recentTags.isEmpty()) {
198            recentTags.clear();
199            Collection<String> c = Main.pref.getCollection("properties.recent-tags");
200            Iterator<String> it = c.iterator();
201            String key, value;
202            while (it.hasNext()) {
203                key = it.next();
204                value = it.next();
205                recentTags.put(new Tag(key, value), null);
206            }
207        }
208    }
209
210    /**
211     * Store recently used tags in preferences if needed
212     */
213    public void saveTagsIfNeeded() {
214        if (PROPERTY_REMEMBER_TAGS.get() && !recentTags.isEmpty()) {
215            List<String> c = new ArrayList<String>( recentTags.size()*2 );
216            for (Tag t: recentTags.keySet()) {
217                c.add(t.getKey());
218                c.add(t.getValue());
219            }
220            Main.pref.putCollection("properties.recent-tags", c);
221        }
222    }
223
224    public final class EditTagDialog extends AbstractTagsDialog {
225        final String key;
226        final Map<String, Integer> m;
227        final int row;
228
229        Comparator<AutoCompletionListItem> usedValuesAwareComparator = new Comparator<AutoCompletionListItem>() {
230                @Override
231                public int compare(AutoCompletionListItem o1, AutoCompletionListItem o2) {
232                    boolean c1 = m.containsKey(o1.getValue());
233                    boolean c2 = m.containsKey(o2.getValue());
234                    if (c1 == c2)
235                        return String.CASE_INSENSITIVE_ORDER.compare(o1.getValue(), o2.getValue());
236                    else if (c1)
237                        return -1;
238                    else
239                        return +1;
240                }
241            };
242        
243        DefaultListCellRenderer cellRenderer = new DefaultListCellRenderer() {
244                @Override public Component getListCellRendererComponent(JList list,
245                        Object value, int index, boolean isSelected,  boolean cellHasFocus){
246                    Component c = super.getListCellRendererComponent(list, value,
247                            index, isSelected, cellHasFocus);
248                    if (c instanceof JLabel) {
249                        String str = ((AutoCompletionListItem) value).getValue();
250                        if (valueCount.containsKey(objKey)) {
251                            Map<String, Integer> m = valueCount.get(objKey);
252                            if (m.containsKey(str)) {
253                                str = tr("{0} ({1})", str, m.get(str));
254                                c.setFont(c.getFont().deriveFont(Font.ITALIC + Font.BOLD));
255                            }
256                        }
257                        ((JLabel) c).setText(str);
258                    }
259                    return c;
260                }
261            };
262        
263        private EditTagDialog(String key, int row, Map<String, Integer> map, final boolean initialFocusOnKey) {
264            super(Main.parent, trn("Change value?", "Change values?", map.size()), new String[] {tr("OK"),tr("Cancel")});
265            setButtonIcons(new String[] {"ok","cancel"});
266            setCancelButton(2);
267            configureContextsensitiveHelp("/Dialog/EditValue", true /* show help button */);
268            this.key = key;
269            this.row = row;
270            this.m = map;
271            
272            JPanel mainPanel = new JPanel(new BorderLayout());
273                    
274            String msg = "<html>"+trn("This will change {0} object.",
275                    "This will change up to {0} objects.", sel.size(), sel.size())
276                    +"<br><br>("+tr("An empty value deletes the tag.", key)+")</html>";
277
278            mainPanel.add(new JLabel(msg), BorderLayout.NORTH);
279
280            JPanel p = new JPanel(new GridBagLayout());
281            mainPanel.add(p, BorderLayout.CENTER);
282
283            AutoCompletionManager autocomplete = Main.main.getEditLayer().data.getAutoCompletionManager();
284            List<AutoCompletionListItem> keyList = autocomplete.getKeys();
285            Collections.sort(keyList, defaultACItemComparator);
286
287            keys = new AutoCompletingComboBox(key);
288            keys.setPossibleACItems(keyList);
289            keys.setEditable(true);
290            keys.setSelectedItem(key);
291
292            p.add(Box.createVerticalStrut(5),GBC.eol()); 
293            p.add(new JLabel(tr("Key")), GBC.std());
294            p.add(Box.createHorizontalStrut(10), GBC.std());
295            p.add(keys, GBC.eol().fill(GBC.HORIZONTAL));
296
297            List<AutoCompletionListItem> valueList = autocomplete.getValues(getAutocompletionKeys(key));
298            Collections.sort(valueList, usedValuesAwareComparator);
299
300            final String selection= m.size()!=1?tr("<different>"):m.entrySet().iterator().next().getKey();
301            
302            values = new AutoCompletingComboBox(selection);
303            values.setRenderer(cellRenderer);
304
305            values.setEditable(true);
306            values.setPossibleACItems(valueList);
307            values.setSelectedItem(selection);
308            values.getEditor().setItem(selection);
309            p.add(Box.createVerticalStrut(5),GBC.eol()); 
310            p.add(new JLabel(tr("Value")), GBC.std());
311            p.add(Box.createHorizontalStrut(10), GBC.std());
312            p.add(values, GBC.eol().fill(GBC.HORIZONTAL));
313            values.getEditor().addActionListener(new ActionListener() {
314                @Override
315                public void actionPerformed(ActionEvent e) {
316                    buttonAction(0, null); // emulate OK button click
317                }
318            });
319            addFocusAdapter(autocomplete, usedValuesAwareComparator);
320            
321            setContent(mainPanel, false);
322            
323            addWindowListener(new WindowAdapter() {
324                @Override
325                public void windowOpened(WindowEvent e) {
326                    if (initialFocusOnKey) {
327                        selectKeysComboBox();
328                    } else {
329                        selectValuesCombobox();
330                    }
331                }
332            });
333        }
334        
335        /**
336         * Edit tags of multiple selected objects according to selected ComboBox values
337         * If value == "", tag will be deleted
338         * Confirmations may be needed.
339         */
340        private void performTagEdit() {
341            String value = values.getEditor().getItem().toString().trim();
342            // is not Java 1.5
343            //value = java.text.Normalizer.normalize(value, java.text.Normalizer.Form.NFC);
344            if (value.isEmpty()) {
345                value = null; // delete the key
346            }
347            String newkey = keys.getEditor().getItem().toString().trim();
348            //newkey = java.text.Normalizer.normalize(newkey, java.text.Normalizer.Form.NFC);
349            if (newkey.isEmpty()) {
350                newkey = key;
351                value = null; // delete the key instead
352            }
353            if (key.equals(newkey) && tr("<different>").equals(value))
354                return;
355            if (key.equals(newkey) || value == null) {
356                Main.main.undoRedo.add(new ChangePropertyCommand(sel, newkey, value));
357            } else {
358                for (OsmPrimitive osm: sel) {
359                    if(osm.get(newkey) != null) {
360                        ExtendedDialog ed = new ExtendedDialog(
361                                Main.parent,
362                                tr("Overwrite key"),
363                                new String[]{tr("Replace"), tr("Cancel")});
364                        ed.setButtonIcons(new String[]{"purge", "cancel"});
365                        ed.setContent(tr("You changed the key from ''{0}'' to ''{1}''.\n"
366                                + "The new key is already used, overwrite values?", key, newkey));
367                        ed.setCancelButton(2);
368                        ed.toggleEnable("overwriteEditKey");
369                        ed.showDialog();
370
371                        if (ed.getValue() != 1)
372                            return;
373                        break;
374                    }
375                }
376                Collection<Command> commands = new ArrayList<Command>();
377                commands.add(new ChangePropertyCommand(sel, key, null));
378                if (value.equals(tr("<different>"))) {
379                    Map<String, List<OsmPrimitive>> map = new HashMap<String, List<OsmPrimitive>>();
380                    for (OsmPrimitive osm: sel) {
381                        String val = osm.get(key);
382                        if (val != null) {
383                            if (map.containsKey(val)) {
384                                map.get(val).add(osm);
385                            } else {
386                                List<OsmPrimitive> v = new ArrayList<OsmPrimitive>();
387                                v.add(osm);
388                                map.put(val, v);
389                            }
390                        }
391                    }
392                    for (Map.Entry<String, List<OsmPrimitive>> e: map.entrySet()) {
393                        commands.add(new ChangePropertyCommand(e.getValue(), newkey, e.getKey()));
394                    }
395                } else {
396                    commands.add(new ChangePropertyCommand(sel, newkey, value));
397                }
398                Main.main.undoRedo.add(new SequenceCommand(
399                        trn("Change properties of up to {0} object",
400                                "Change properties of up to {0} objects", sel.size(), sel.size()),
401                                commands));
402            }
403
404            changedKey = newkey;
405        }
406    }
407
408    public static final BooleanProperty PROPERTY_FIX_TAG_LOCALE = new BooleanProperty("properties.fix-tag-combobox-locale", false);
409    public static final BooleanProperty PROPERTY_REMEMBER_TAGS = new BooleanProperty("properties.remember-recently-added-tags", false);
410    public static final IntegerProperty PROPERTY_RECENT_TAGS_NUMBER = new IntegerProperty("properties.recently-added-tags", DEFAULT_LRU_TAGS_NUMBER);
411
412    abstract class AbstractTagsDialog extends ExtendedDialog {
413        AutoCompletingComboBox keys;
414        AutoCompletingComboBox values;
415        Component componentUnderMouse;
416        
417        public AbstractTagsDialog(Component parent, String title, String[] buttonTexts) {
418            super(parent, title, buttonTexts);
419            addMouseListener(new PopupMenuLauncher(popupMenu));
420        }
421
422        @Override
423        public void setupDialog() {
424            setResizable(false);
425            super.setupDialog();
426            
427            setRememberWindowGeometry(getClass().getName() + ".geometry",
428                WindowGeometry.centerInWindow(Main.parent, getSize()));
429        }
430
431        @Override
432        public void setVisible(boolean visible) {
433            // Do not want dialog to be resizable, but its size may increase each time because of the recently added tags
434            // So need to modify the stored geometry (size part only) in order to use the automatic positioning mechanism
435            if (visible) {
436                WindowGeometry geometry = initWindowGeometry();
437                Dimension storedSize = geometry.getSize();
438                if (!storedSize.equals(getSize())) {
439                    storedSize.setSize(getSize());
440                    rememberWindowGeometry(geometry);
441                }
442                keys.setFixedLocale(PROPERTY_FIX_TAG_LOCALE.get());
443            }
444            super.setVisible(visible);
445        }
446        
447        private void selectACComboBoxSavingUnixBuffer(AutoCompletingComboBox cb) {
448            // select compbobox with saving unix system selection (middle mouse paste)
449            Clipboard sysSel = Toolkit.getDefaultToolkit().getSystemSelection();
450            if(sysSel != null) {
451                Transferable old = sysSel.getContents(null);
452                cb.requestFocusInWindow();
453                cb.getEditor().selectAll();
454                sysSel.setContents(old, null);
455            } else {
456                cb.requestFocusInWindow();
457                cb.getEditor().selectAll();
458            }
459        }
460        
461        public void selectKeysComboBox() {
462            selectACComboBoxSavingUnixBuffer(keys);
463        }
464        
465        public void selectValuesCombobox()   {
466            selectACComboBoxSavingUnixBuffer(values);
467        }
468        
469        /**
470        * Create a focus handling adapter and apply in to the editor component of value
471        * autocompletion box.
472        * @param autocomplete Manager handling the autocompletion
473        * @param comparator Class to decide what values are offered on autocompletion
474        * @return The created adapter
475        */
476        protected FocusAdapter addFocusAdapter(final AutoCompletionManager autocomplete, final Comparator<AutoCompletionListItem> comparator) {
477           // get the combo box' editor component
478           JTextComponent editor = (JTextComponent)values.getEditor()
479                   .getEditorComponent();
480           // Refresh the values model when focus is gained
481           FocusAdapter focus = new FocusAdapter() {
482               @Override public void focusGained(FocusEvent e) {
483                   String key = keys.getEditor().getItem().toString();
484
485                   List<AutoCompletionListItem> valueList = autocomplete.getValues(getAutocompletionKeys(key));
486                   Collections.sort(valueList, comparator);
487
488                   values.setPossibleACItems(valueList);
489                   objKey=key;
490               }
491           };
492           editor.addFocusListener(focus);
493           return focus;
494        }
495        
496        protected JPopupMenu popupMenu = new JPopupMenu() {
497            JCheckBoxMenuItem fixTagLanguageCb = new JCheckBoxMenuItem(
498                new AbstractAction(tr("Use English language for tag by default")){
499                @Override
500                public void actionPerformed(ActionEvent e) {
501                    boolean sel=((JCheckBoxMenuItem) e.getSource()).getState();
502                    PROPERTY_FIX_TAG_LOCALE.put(sel);
503                }
504            });
505            {
506                add(fixTagLanguageCb);
507                fixTagLanguageCb.setState(PROPERTY_FIX_TAG_LOCALE.get());
508            }
509        };
510    }
511
512    class AddTagsDialog extends AbstractTagsDialog {
513        List<JosmAction> recentTagsActions = new ArrayList<JosmAction>();
514        
515        // Counter of added commands for possible undo
516        private int commandCount;
517
518        public AddTagsDialog() {
519            super(Main.parent, tr("Add value?"), new String[] {tr("OK"),tr("Cancel")});
520            setButtonIcons(new String[] {"ok","cancel"});
521            setCancelButton(2);
522            configureContextsensitiveHelp("/Dialog/AddValue", true /* show help button */);
523            
524            JPanel mainPanel = new JPanel(new GridBagLayout());
525            keys = new AutoCompletingComboBox();
526            values = new AutoCompletingComboBox();
527            
528            mainPanel.add(new JLabel("<html>"+trn("This will change up to {0} object.",
529                "This will change up to {0} objects.", sel.size(),sel.size())
530                +"<br><br>"+tr("Please select a key")), GBC.eol().fill(GBC.HORIZONTAL));
531
532            AutoCompletionManager autocomplete = Main.main.getEditLayer().data.getAutoCompletionManager();
533            List<AutoCompletionListItem> keyList = autocomplete.getKeys();
534
535            AutoCompletionListItem itemToSelect = null;
536            // remove the object's tag keys from the list
537            Iterator<AutoCompletionListItem> iter = keyList.iterator();
538            while (iter.hasNext()) {
539                AutoCompletionListItem item = iter.next();
540                if (item.getValue().equals(lastAddKey)) {
541                    itemToSelect = item;
542                }
543                for (int i = 0; i < tagData.getRowCount(); ++i) {
544                    if (item.getValue().equals(tagData.getValueAt(i, 0))) {
545                        if (itemToSelect == item) {
546                            itemToSelect = null;
547                        }
548                        iter.remove();
549                        break;
550                    }
551                }
552            }
553
554            Collections.sort(keyList, defaultACItemComparator);
555            keys.setPossibleACItems(keyList);
556            keys.setEditable(true);
557
558            mainPanel.add(keys, GBC.eop().fill());
559
560            mainPanel.add(new JLabel(tr("Please select a value")), GBC.eol());
561            values.setEditable(true);
562            mainPanel.add(values, GBC.eop().fill());
563            if (itemToSelect != null) {
564                keys.setSelectedItem(itemToSelect);
565                if (lastAddValue != null) {
566                    values.setSelectedItem(lastAddValue);
567                }
568            }
569
570            FocusAdapter focus = addFocusAdapter(autocomplete, defaultACItemComparator);
571            // fire focus event in advance or otherwise the popup list will be too small at first
572            focus.focusGained(null);
573
574            int recentTagsToShow = PROPERTY_RECENT_TAGS_NUMBER.get();
575            if (recentTagsToShow > MAX_LRU_TAGS_NUMBER) {
576                recentTagsToShow = MAX_LRU_TAGS_NUMBER;
577            }
578            
579            // Add tag on Shift-Enter
580            mainPanel.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(
581                        KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, InputEvent.SHIFT_MASK), "addAndContinue");
582                mainPanel.getActionMap().put("addAndContinue", new AbstractAction() {
583                    @Override
584                    public void actionPerformed(ActionEvent e) {
585                        performTagAdding();
586                        selectKeysComboBox();
587                    }
588                });
589                    
590            suggestRecentlyAddedTags(mainPanel, recentTagsToShow, focus);
591            
592            setContent(mainPanel, false);
593            
594            selectKeysComboBox();
595            
596            popupMenu.add(new AbstractAction(tr("Set number of recently added tags")) {
597                @Override
598                public void actionPerformed(ActionEvent e) {
599                    selectNumberOfTags();
600                }
601            });
602            JCheckBoxMenuItem rememberLastTags = new JCheckBoxMenuItem(
603                new AbstractAction(tr("Remember last used tags")){
604                @Override
605                public void actionPerformed(ActionEvent e) {
606                    boolean sel=((JCheckBoxMenuItem) e.getSource()).getState();
607                    PROPERTY_REMEMBER_TAGS.put(sel);
608                    if (sel) saveTagsIfNeeded();
609                }
610            });
611            rememberLastTags.setState(PROPERTY_REMEMBER_TAGS.get());
612            popupMenu.add(rememberLastTags);
613        }
614        
615        private void selectNumberOfTags() {
616            String s = JOptionPane.showInputDialog(this, tr("Please enter the number of recently added tags to display"));
617            if (s!=null) try {
618                int v = Integer.parseInt(s);
619                if (v>=0 && v<=MAX_LRU_TAGS_NUMBER) {
620                    PROPERTY_RECENT_TAGS_NUMBER.put(v);
621                    return;
622                }
623            } catch (NumberFormatException ex) {
624                Main.warn(ex);
625            }
626            JOptionPane.showMessageDialog(this, tr("Please enter integer number between 0 and {0}", MAX_LRU_TAGS_NUMBER));
627            
628        }
629        
630        private void suggestRecentlyAddedTags(JPanel mainPanel, int tagsToShow, final FocusAdapter focus) {
631            if (!(tagsToShow > 0 && !recentTags.isEmpty())) 
632                return;
633
634            mainPanel.add(new JLabel(tr("Recently added tags")), GBC.eol());
635            
636            int count = 1;
637            // We store the maximum number (9) of recent tags to allow dynamic change of number of tags shown in the preferences.
638            // This implies to iterate in descending order, as the oldest elements will only be removed after we reach the maximum numbern and not the number of tags to show.
639            // However, as Set does not allow to iterate in descending order, we need to copy its elements into a List we can access in reverse order.
640            List<Tag> tags = new LinkedList<Tag>(recentTags.keySet());
641            for (int i = tags.size()-1; i >= 0 && count <= tagsToShow; i--, count++) {
642                final Tag t = tags.get(i);
643                // Create action for reusing the tag, with keyboard shortcut Ctrl+(1-5)
644                String actionShortcutKey = "properties:recent:"+count;
645                String actionShortcutShiftKey = "properties:recent:shift:"+count;
646                Shortcut sc = Shortcut.registerShortcut(actionShortcutKey, tr("Choose recent tag {0}", count), KeyEvent.VK_0+count, Shortcut.CTRL);
647                final JosmAction action = new JosmAction(actionShortcutKey, null, tr("Use this tag again"), sc, false) {
648                    @Override
649                    public void actionPerformed(ActionEvent e) {
650                        keys.setSelectedItem(t.getKey());
651                        // Update list of values (fix #7951) 
652                        // fix #8298 - update list of values before setting value (?)
653                        focus.focusGained(null);
654                        values.setSelectedItem(t.getValue());
655                        selectValuesCombobox();
656                    }
657                };
658                Shortcut scShift = Shortcut.registerShortcut(actionShortcutShiftKey, tr("Apply recent tag {0}", count), KeyEvent.VK_0+count, Shortcut.CTRL_SHIFT);
659                final JosmAction actionShift = new JosmAction(actionShortcutShiftKey, null, tr("Use this tag again"), scShift, false) {
660                    @Override
661                    public void actionPerformed(ActionEvent e) {
662                        action.actionPerformed(null);
663                        performTagAdding();
664                        selectKeysComboBox();
665                    }
666                };
667                recentTagsActions.add(action);
668                recentTagsActions.add(actionShift);
669                disableTagIfNeeded(t, action);
670                // Find and display icon
671                ImageIcon icon = MapPaintStyles.getNodeIcon(t, false); // Filters deprecated icon
672                if (icon == null) {
673                    // If no icon found in map style look at presets
674                    Map<String, String> map = new HashMap<String, String>();
675                    map.put(t.getKey(), t.getValue());
676                    for (TaggingPreset tp : TaggingPreset.getMatchingPresets(null, map, false)) {
677                        icon = tp.getIcon();
678                        if (icon != null) {
679                            break;
680                        }
681                    }
682                    // If still nothing display an empty icon
683                    if (icon == null) {
684                        icon = new ImageIcon(new BufferedImage(16, 16, BufferedImage.TYPE_INT_ARGB));
685                    }
686                }
687                GridBagConstraints gbc = new GridBagConstraints();
688                gbc.ipadx = 5;
689                mainPanel.add(new JLabel(action.isEnabled() ? icon : GuiHelper.getDisabledIcon(icon)), gbc);
690                // Create tag label
691                final String color = action.isEnabled() ? "" : "; color:gray";
692                final JLabel tagLabel = new JLabel("<html>"
693                    + "<style>td{border:1px solid gray; font-weight:normal"+color+"}</style>" 
694                    + "<table><tr><td>" + XmlWriter.encode(t.toString(), true) + "</td></tr></table></html>");
695                if (action.isEnabled()) {
696                    // Register action
697                    mainPanel.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(sc.getKeyStroke(), actionShortcutKey);
698                    mainPanel.getActionMap().put(actionShortcutKey, action);
699                    mainPanel.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(scShift.getKeyStroke(), actionShortcutShiftKey);
700                    mainPanel.getActionMap().put(actionShortcutShiftKey, actionShift);
701                    // Make the tag label clickable and set tooltip to the action description (this displays also the keyboard shortcut)
702                    tagLabel.setToolTipText((String) action.getValue(Action.SHORT_DESCRIPTION));
703                    tagLabel.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
704                    tagLabel.addMouseListener(new MouseAdapter() {
705                        @Override
706                        public void mouseClicked(MouseEvent e) {
707                            action.actionPerformed(null);
708                            // add tags and close window on double-click
709                            if (e.getClickCount()>1) {
710                                buttonAction(0, null); // emulate OK click and close the dialog
711                            }
712                            // add tags on Shift-Click
713                            if (e.isShiftDown()) {
714                                performTagAdding();
715                                selectKeysComboBox();
716                            }
717                        }
718                    });
719                } else {
720                    // Disable tag label
721                    tagLabel.setEnabled(false);
722                    // Explain in the tooltip why
723                    tagLabel.setToolTipText(tr("The key ''{0}'' is already used", t.getKey()));
724                }
725                // Finally add label to the resulting panel
726                JPanel tagPanel = new JPanel(new FlowLayout(FlowLayout.LEFT, 0, 0));
727                tagPanel.add(tagLabel);
728                mainPanel.add(tagPanel, GBC.eol().fill(GBC.HORIZONTAL));
729            }
730        }
731
732        public void destroyActions() {
733            for (JosmAction action : recentTagsActions) {
734                action.destroy();
735            }
736        }
737
738        /**
739         * Read tags from comboboxes and add it to all selected objects
740         */
741        public void performTagAdding() {
742            String key = keys.getEditor().getItem().toString().trim();
743            String value = values.getEditor().getItem().toString().trim();
744            if (key.isEmpty() || value.isEmpty()) return;
745            lastAddKey = key;
746            lastAddValue = value;
747            recentTags.put(new Tag(key, value), null);
748            commandCount++;
749            Main.main.undoRedo.add(new ChangePropertyCommand(sel, key, value));
750            changedKey = key;
751        }
752        
753        
754        public void undoAllTagsAdding() {
755            Main.main.undoRedo.undo(commandCount);
756        }
757
758
759        private void disableTagIfNeeded(final Tag t, final JosmAction action) {
760            // Disable action if its key is already set on the object (the key being absent from the keys list for this reason
761            // performing this action leads to autocomplete to the next key (see #7671 comments)
762            for (int j = 0; j < tagData.getRowCount(); ++j) {
763                if (t.getKey().equals(tagData.getValueAt(j, 0))) {
764                    action.setEnabled(false);
765                    break;
766                }
767            }
768        }
769
770    }
771 }