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/* Glazed Lists (c) 2003-2006 */
/* http://publicobject.com/glazedlists/ publicobject.com,*/
/* O'Dell Engineering Ltd.*/
package org.eclipse.papyrus.infra.nattable.glazedlists.copy;
import java.util.Iterator;
import java.util.List;
/**
* @see ca.odell.glazedlists.gui.AbstractTableComparatorChooser#SINGLE_COLUMN
* @see ca.odell.glazedlists.gui.AbstractTableComparatorChooser#MULTIPLE_COLUMN_MOUSE
*
* @author <a href="mailto:jesse@swank.ca">Jesse Wilson</a>
*/
public final class MouseOnlySortingStrategy implements SortingStrategy {
/** if false, other sorting columns will be cleared before a click takes effect */
private final boolean multipleColumnSort;
/**
* Create a new {@link8 ca.odell.glazedlists.impl.gui.MouseOnlySortingStrategy}, sorting multiple
* columns or not as specified.
*/
public MouseOnlySortingStrategy(boolean multipleColumnSort) {
this.multipleColumnSort = multipleColumnSort;
}
/**
* Adjust the sorting state based on receiving the specified clicks.
*/
public void columnClicked(SortingState sortingState, int column, int clicks, boolean shift, boolean control) {
SortingState.SortingColumn clickedColumn = sortingState.getColumns().get(column);
if (clickedColumn.getComparators().isEmpty())
return;
List<SortingState.SortingColumn> recentlyClickedColumns = sortingState.getRecentlyClickedColumns();
// on a double click, clear all click counts
if (clicks == 2) {
for (Iterator<SortingState.SortingColumn> i = recentlyClickedColumns.iterator(); i.hasNext();) {
SortingState.SortingColumn sortingColumn = i.next();
sortingColumn.clear();
}
recentlyClickedColumns.clear();
// if we're only sorting one column at a time, clear other columns
} else if (!multipleColumnSort) {
for (Iterator<SortingState.SortingColumn> i = recentlyClickedColumns.iterator(); i.hasNext();) {
SortingState.SortingColumn sortingColumn = i.next();
if (sortingColumn != clickedColumn) {
sortingColumn.clear();
}
}
recentlyClickedColumns.clear();
}
// add a click to the newly clicked column if it has any comparators
int netClicks = 1 + clickedColumn.getComparatorIndex() * 2 + (clickedColumn.isReverse() ? 1 : 0);
clickedColumn.setComparatorIndex((netClicks / 2) % clickedColumn.getComparators().size());
clickedColumn.setReverse(netClicks % 2 == 1);
if (!recentlyClickedColumns.contains(clickedColumn)) {
recentlyClickedColumns.add(clickedColumn);
}
// rebuild the sorting state
sortingState.fireSortingChanged();
}
}
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