Here's a quick (beware: not formally tested! the usage example works fine, though) implementation of a wrapping RowSorter.
- does nothing on receiving notification of model changes
- delegates all status queries
- listens to wrapped rowSorter and propagates its events
It's client's responsibility to keep it in synch with the rowSorter used in the main table
Usage example (in terms of SwingX test infrastructure and with SwingX sortController/table):
public void interactiveRowSorterWrapperSharedXTable() {
final DefaultTableModel tableModel = new DefaultTableModel(list.getElementCount(), 2) {
@Override
public Class<?> getColumnClass(int columnIndex) {
return Integer.class;
}
};
for (int i = 0; i < tableModel.getRowCount(); i++) {
tableModel.setValueAt(i, i, 0);
tableModel.setValueAt(tableModel.getRowCount() - i, i, 1);
}
final JXTable master = new JXTable(tableModel);
final TableSortController<TableModel> rowSorter = (TableSortController<TableModel>) master.getRowSorter();
master.removeColumn(master.getColumn(0));
final JXTable rowHeader = new JXTable(master.getModel());
rowHeader.setAutoCreateRowSorter(false);
rowHeader.removeColumn(rowHeader.getColumn(1));
rowHeader.setRowSorter(new RowSorterWrapper<TableModel>(rowSorter));
rowHeader.setSelectionModel(master.getSelectionModel());
// need to disable selection update on one of the table's
// otherwise the selection is not kept in model coordinates
rowHeader.setUpdateSelectionOnSort(false);
JScrollPane scrollPane = new JScrollPane(master);
scrollPane.setRowHeaderView(rowHeader);
JXFrame frame = showInFrame(scrollPane, "xtables (wrapped sortController): shared model/selection");
Action fireAllChanged = new AbstractAction("fireDataChanged") {
@Override
public void actionPerformed(ActionEvent e) {
tableModel.fireTableDataChanged();
}
};
addAction(frame, fireAllChanged);
Action removeFirst = new AbstractAction("remove firstM") {
@Override
public void actionPerformed(ActionEvent e) {
tableModel.removeRow(0);
}
};
addAction(frame, removeFirst);
Action removeLast = new AbstractAction("remove lastM") {
@Override
public void actionPerformed(ActionEvent e) {
tableModel.removeRow(tableModel.getRowCount() - 1);
}
};
addAction(frame, removeLast);
Action filter = new AbstractAction("toggle filter") {
@Override
public void actionPerformed(ActionEvent e) {
RowFilter filter = rowSorter.getRowFilter();
if (filter == null) {
rowSorter.setRowFilter(RowFilter.regexFilter("^1", 1));
} else {
rowSorter.setRowFilter(null);
}
}
};
addAction(frame, filter);
addStatusMessage(frame, "row header example with RowSorterWrapper");
show(frame);
}
The RowSorterWrapper:
/**
* Wrapping RowSorter for usage (f.i.) in a rowHeader.
*
* Delegates all state queries,
* does nothing on receiving notification of model changes,
* propagates rowSorterEvents from delegates.
*
* Beware: untested!
*
* @author Jeanette Winzenburg, Berlin
*/
public class RowSorterWrapper<M> extends RowSorter<M> {
private RowSorter<M> delegate;
private RowSorterListener rowSorterListener;
public RowSorterWrapper(RowSorter<M> delegate) {
this.delegate = delegate;
delegate.addRowSorterListener(getRowSorterListener());
}
/**
* Creates and returns a RowSorterListener which re-fires received
* events.
*
* @return
*/
protected RowSorterListener getRowSorterListener() {
if (rowSorterListener == null) {
RowSorterListener listener = new RowSorterListener() {
@Override
public void sorterChanged(RowSorterEvent e) {
if (RowSorterEvent.Type.SORT_ORDER_CHANGED == e.getType()) {
fireSortOrderChanged();
} else if (RowSorterEvent.Type.SORTED == e.getType()) {
fireRowSorterChanged(null); }
}
};
rowSorterListener = listener;
}
return rowSorterListener;
}
@Override
public M getModel() {
return delegate.getModel();
}
@Override
public void toggleSortOrder(int column) {
delegate.toggleSortOrder(column);
}
@Override
public int convertRowIndexToModel(int index) {
return delegate.convertRowIndexToModel(index);
}
@Override
public int convertRowIndexToView(int index) {
return delegate.convertRowIndexToView(index);
}
@Override
public void setSortKeys(List keys) {
delegate.setSortKeys(keys);
}
@Override
public List getSortKeys() {
return delegate.getSortKeys();
}
@Override
public int getViewRowCount() {
return delegate.getViewRowCount();
}
@Override
public int getModelRowCount() {
return delegate.getModelRowCount();
}
@Override
public void modelStructureChanged() {
// do nothing, all work done by delegate
}
@Override
public void allRowsChanged() {
// do nothing, all work done by delegate
}
@Override
public void rowsInserted(int firstRow, int endRow) {
// do nothing, all work done by delegate
}
@Override
public void rowsDeleted(int firstRow, int endRow) {
// do nothing, all work done by delegate
}
@Override
public void rowsUpdated(int firstRow, int endRow) {
// do nothing, all work done by delegate
}
@Override
public void rowsUpdated(int firstRow, int endRow, int column) {
// do nothing, all work done by delegate
}
}
