Java Swing Tips: TableRowSorter

Showing posts with label TableRowSorter. Show all posts

2023/10/31

Sort JTable rows with multiple conditions

Code

RowSorter<? extends TableModel> sorter = table.getRowSorter();
if (sorter instanceof TableRowSorter) {
  TableRowSorter<? extends TableModel> rs
      = (TableRowSorter<? extends TableModel>) sorter;
  rs.setComparator(0, Comparator.comparing(RowData::getPosition));
  rs.setComparator(1, Comparator.comparing(RowData::getTeam));
  rs.setComparator(2, Comparator.comparing(RowData::getMatches));
  rs.setComparator(3, Comparator.comparing(RowData::getWins));
  rs.setComparator(4, Comparator.comparing(RowData::getDraws));
  rs.setComparator(5, Comparator.comparing(RowData::getLosses));
  rs.setComparator(6, Comparator.comparing(RowData::getGoalsFor));
  rs.setComparator(7, Comparator.comparing(RowData::getGoalsAgainst));
  rs.setComparator(8, Comparator.comparing(RowData::getGoalDifference));
  rs.setComparator(9, Comparator.comparing(RowData::getPoints)
      .thenComparing(RowData::getGoalDifference));
}
add(new JScrollPane(table));

References

Sort JTable rows with multiple conditions(Japanese)

2013/07/29

JTable highlighting and filtering with regular expression

Code

class HighlightTableCellRenderer
    extends JTextField implements TableCellRenderer {
  private static final Color BGC= new Color(220, 240, 255);
  private final transient Highlighter.HighlightPainter highlightPainter
    = new DefaultHighlighter.DefaultHighlightPainter(Color.YELLOW);
  private String pattern = "";
  private String prev;

  public boolean setPattern(String str) {
    if (str == null || str.equals(pattern)) {
      return false;
    } else {
      prev = pattern;
      pattern = str;
      return true;
    }
  }

  public HighlightTableCellRenderer() {
    super();
    setOpaque(true);
    setBorder(BorderFactory.createEmptyBorder());
    setForeground(Color.BLACK);
    setBackground(Color.WHITE);
    setEditable(false);
  }

  @Override public Component getTableCellRendererComponent(
      JTable table, Object value, boolean isSelected,
      boolean hasFocus, int row, int column) {
    String txt = Objects.toString(value, "");
    Highlighter highlighter = getHighlighter();
    highlighter.removeAllHighlights();
    setText(txt);
    setBackground(isSelected ? BGC : Color.WHITE);
    if (pattern != null && !pattern.isEmpty() && !pattern.equals(prev)) {
      Matcher matcher = Pattern.compile(pattern).matcher(txt);
      int pos = 0;
      while (matcher.find(pos) && !matcher.group().isEmpty()) {
        int start = matcher.start();
        int end   = matcher.end();
        try {
          highlighter.addHighlight(start, end, highlightPainter);
        } catch (BadLocationException | PatternSyntaxException e) {
          e.printStackTrace();
        }
        pos = end;
      }
    }
    return this;
  }
}

References

JTable highlighting and filtering with regular expression(Japanese)

2009/03/02

Reset RowFilter before sorting

Code

RowFilter<TableModel, Integer> filter = new RowFilter<TableModel, Integer>() {
  @Override public boolean include(Entry<? extends TableModel, ? extends Integer> entry) {
    int vidx = table.convertRowIndexToView(entry.getIdentifier());
    return vidx < USER_SPECIFIED_NUMBER_OF_ROWS;
  }
};
TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(model) {
  @Override public void toggleSortOrder(int column) {
    if (check.isSelected()) {
      RowFilter<? super TableModel, ? super Integer> f = getRowFilter();
      setRowFilter(null);
      super.toggleSortOrder(column);
      setRowFilter(f);
    } else {
      super.toggleSortOrder(column);
    }
  }
};
table.setRowSorter(sorter);
sorter.setSortKeys(Arrays.asList(new RowSorter.SortKey(1, SortOrder.DESCENDING)));

References

Reset RowFilter before sorting(Japanese)

2008/09/16

JTable Tri-state row sorting (cycle through ascending descending unsorted)

Code

TableModel model = new DefaultTableModel();
JTable table = new JTable(model);
// sort toggles ascending descending unsorted (like TableSorter.java)
TableRowSorter< TableModel > sorter = new TableRowSorter< TableModel >(model) {
  @Override
  public void toggleSortOrder(int column) {
    if(column >= 0 && column < getModelWrapper().getColumnCount() && isSortable(column)) {
      List< SortKey > keys = new ArrayList< SortKey >(getSortKeys());
      if(!keys.isEmpty()) {
        SortKey sortKey = keys.get(0);
        if(sortKey.getColumn()==column && sortKey.getSortOrder()==SortOrder.DESCENDING) {
          setSortKeys(null);
          return;
        }
      }
    }
    super.toggleSortOrder(column);
  }
};
table.setRowSorter(sorter);

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2023/10/31

Sort JTable rows with multiple conditions

Code

References

2013/07/29

JTable highlighting and filtering with regular expression

Code

References

2009/03/02

Reset RowFilter before sorting

Code

References

2008/09/16

JTable Tri-state row sorting (cycle through ascending descending unsorted)

Code