/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* Copyright (c) 2006 - 2009 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.designer.core.editor.crosstab;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;
import java.util.UUID;
import javax.swing.DropMode;
import javax.swing.JTable;
import javax.swing.TransferHandler;
import org.pentaho.reporting.engine.classic.core.elementfactory.CrosstabDimension;
import org.pentaho.reporting.libraries.designtime.swing.table.PropertyTable;
public class DraggableCrosstabDimensionTable extends PropertyTable implements FieldDragSupport
{
private UUID dragId;
private CrosstabDimensionTableModel dataModel;
public DraggableCrosstabDimensionTable(final CrosstabDimensionTableModel dm)
{
super(dm);
dataModel = dm;
dragId = UUID.randomUUID();
setTransferHandler(new CrosstabDialogTransferHandler(this));
setDragEnabled(true);
setFillsViewportHeight(true);
setDropMode(DropMode.INSERT_ROWS);
}
public UUID getDragId()
{
return dragId;
}
public void removeValues(final List<IndexedTransferable.FieldTuple> fields)
{
final Set<Integer> indexes = new TreeSet<Integer>();
for (final IndexedTransferable.FieldTuple field : fields)
{
indexes.add(field.getIndex());
}
ArrayList<Integer> l = new ArrayList<Integer>(indexes);
Collections.reverse(l);
for (final Integer index : indexes)
{
dataModel.remove(index);
}
}
public List<IndexedTransferable.FieldTuple> getSelectedFields()
{
int[] selectedValues = getSelectedRows();
ArrayList<IndexedTransferable.FieldTuple> retval = new ArrayList<IndexedTransferable.FieldTuple>();
for (final int idx : selectedValues)
{
CrosstabDimension dimension = dataModel.get(idx);
retval.add(new IndexedTransferable.FieldTuple(idx, dimension.getField(), dimension.getTitle(), dimension));
}
return retval;
}
private boolean containsField(String field)
{
for (int i = 0; i < getRowCount(); i += 1)
{
if (field.equals(dataModel.get(i).getField()))
{
return true;
}
}
return false;
}
private CrosstabDimension toDimension(final IndexedTransferable.FieldTuple tuple)
{
final Object raw = tuple.getRaw();
if (raw instanceof CrosstabDimension)
{
CrosstabDimension rawDimension = (CrosstabDimension) raw;
return rawDimension.clone();
}
else
{
return new CrosstabDimension(tuple.getValue(), tuple.getTitle());
}
}
public void insert(final TransferHandler.DropLocation dropLocation,
final List<IndexedTransferable.FieldTuple> items,
final boolean preventDuplicates)
{
final int idx = findInsertIndex(dropLocation);
if (idx == -1)
{
for (int i = 0; i < items.size(); i++)
{
final IndexedTransferable.FieldTuple tuple = items.get(i);
String value = tuple.getValue();
if (preventDuplicates)
{
if (containsField(value))
{
continue;
}
}
dataModel.add(toDimension(tuple));
}
}
else
{
for (int i = items.size() - 1; i >= 0; i -= 1)
{
final IndexedTransferable.FieldTuple tuple = items.get(i);
String value = tuple.getValue();
if (preventDuplicates)
{
if (containsField(value))
{
continue;
}
}
dataModel.add(idx, toDimension(tuple));
}
}
}
private int findInsertIndex(final TransferHandler.DropLocation dropLocation)
{
if (dropLocation instanceof JTable.DropLocation)
{
JTable.DropLocation dl = (JTable.DropLocation) dropLocation;
return dl.getRow();
}
return rowAtPoint(dropLocation.getDropPoint());
}
}