1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.widgets;
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3 |
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4 | import static org.openstreetmap.josm.tools.I18n.tr;
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5 |
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6 | import java.util.Arrays;
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7 | import java.util.List;
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8 | import java.util.Objects;
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9 | import java.util.regex.PatternSyntaxException;
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10 | import java.util.stream.Collectors;
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11 |
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12 | import javax.swing.JTable;
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13 | import javax.swing.RowFilter;
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14 | import javax.swing.event.DocumentEvent;
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15 | import javax.swing.event.DocumentListener;
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16 | import javax.swing.table.AbstractTableModel;
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17 | import javax.swing.table.TableModel;
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18 | import javax.swing.table.TableRowSorter;
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19 |
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20 | import org.openstreetmap.josm.tools.Logging;
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21 | import org.openstreetmap.josm.tools.Utils;
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22 |
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23 | /**
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24 | * Text field allowing to filter contents.
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25 | * @since 15116
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26 | */
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27 | public class FilterField extends JosmTextField {
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28 |
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29 | /**
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30 | * Constructs a new {@code TableFilterField}.
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31 | */
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32 | public FilterField() {
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33 | setToolTipText(tr("Enter a search expression"));
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34 | SelectAllOnFocusGainedDecorator.decorate(this);
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35 | }
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36 |
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37 | /**
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38 | * Defines the filter behaviour.
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39 | */
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40 | @FunctionalInterface
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41 | public interface FilterBehaviour {
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42 | /**
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43 | * Filters a component according to the given filter expression.
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44 | * @param expr filter expression
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45 | */
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46 | void filter(String expr);
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47 | }
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48 |
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49 | /**
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50 | * Enables filtering of given table/model.
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51 | * @param table table to filter
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52 | * @param model table model
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53 | * @return {@code this} for easy chaining
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54 | */
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55 | public FilterField filter(JTable table, AbstractTableModel model) {
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56 | return filter(new TableFilterBehaviour(table, model));
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57 | }
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58 |
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59 | /**
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60 | * Enables generic filtering.
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61 | * @param behaviour filter behaviour
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62 | * @return {@code this} for easy chaining
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63 | */
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64 | public FilterField filter(FilterBehaviour behaviour) {
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65 | getDocument().addDocumentListener(new FilterFieldAdapter(behaviour));
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66 | return this;
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67 | }
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68 |
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69 | private static class TableFilterBehaviour implements FilterBehaviour {
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70 | private final JTable table;
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71 | private final AbstractTableModel model;
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72 |
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73 | TableFilterBehaviour(JTable table, AbstractTableModel model) {
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74 | this.table = Objects.requireNonNull(table, "table");
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75 | this.model = Objects.requireNonNull(model, "model");
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76 | Objects.requireNonNull(table.getRowSorter(), "table.rowSorter");
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77 | }
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78 |
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79 | @Override
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80 | public void filter(String expr) {
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81 | try {
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82 | final TableRowSorter<? extends TableModel> sorter =
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83 | (TableRowSorter<? extends TableModel>) table.getRowSorter();
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84 | if (expr == null || expr.isEmpty()) {
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85 | sorter.setRowFilter(null);
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86 | } else {
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87 | expr = expr.replace("+", "\\+");
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88 | // split search string on whitespace, do case-insensitive AND search
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89 | List<RowFilter<Object, Object>> andFilters = Arrays.stream(expr.split("\\s+"))
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90 | .map(word -> RowFilter.regexFilter("(?i)" + word))
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91 | .collect(Collectors.toList());
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92 | sorter.setRowFilter(RowFilter.andFilter(andFilters));
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93 | }
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94 | model.fireTableDataChanged();
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95 | } catch (PatternSyntaxException | ClassCastException ex) {
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96 | Logging.warn(ex);
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97 | }
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98 | }
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99 | }
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100 |
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101 | private class FilterFieldAdapter implements DocumentListener {
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102 | private final FilterBehaviour behaviour;
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103 |
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104 | FilterFieldAdapter(FilterBehaviour behaviour) {
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105 | this.behaviour = Objects.requireNonNull(behaviour);
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106 | }
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107 |
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108 | private void filter() {
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109 | behaviour.filter(Utils.strip(getText()));
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110 | }
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111 |
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112 | @Override
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113 | public void changedUpdate(DocumentEvent e) {
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114 | filter();
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115 | }
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116 |
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117 | @Override
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118 | public void insertUpdate(DocumentEvent e) {
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119 | filter();
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120 | }
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121 |
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122 | @Override
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123 | public void removeUpdate(DocumentEvent e) {
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124 | filter();
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125 | }
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126 | }
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127 | }
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