Package org.pentaho.reporting.libraries.designtime.swing.bulk

Source Code of org.pentaho.reporting.libraries.designtime.swing.bulk.RemoveBulkAction$SelectionUpdateHandler

/*!
* 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) 2002-2013 Pentaho Corporation..  All rights reserved.
*/

package org.pentaho.reporting.libraries.designtime.swing.bulk;

import java.awt.event.ActionEvent;
import java.util.ArrayList;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.ListSelectionModel;
import javax.swing.JTable;
import javax.swing.table.TableCellEditor;
import javax.swing.event.ListSelectionListener;
import javax.swing.event.ListSelectionEvent;

import org.pentaho.reporting.libraries.designtime.swing.Messages;

public class RemoveBulkAction extends AbstractAction
{
  private class SelectionUpdateHandler implements ListSelectionListener
  {
    private SelectionUpdateHandler()
    {
    }

    public void valueChanged(final ListSelectionEvent e)
    {
      setEnabled(listSelectionModel.isSelectionEmpty() == false);
    }
  }

  private BulkDataProvider tableModel;
  private ListSelectionModel listSelectionModel;
  private JTable editorTable;

  public RemoveBulkAction(final BulkDataProvider tableModel,
                              final ListSelectionModel listSelectionModel)
  {
    this.tableModel = tableModel;
    this.listSelectionModel = listSelectionModel;
    this.listSelectionModel.addListSelectionListener(new SelectionUpdateHandler());
    putValue(Action.SMALL_ICON, Messages.getInstance().getIcon("Icons.REMOVE"));
    putValue(Action.SHORT_DESCRIPTION, Messages.getInstance().getString("Action.REMOVE"));
  }

  public RemoveBulkAction(final BulkDataProvider tableModel, final ListSelectionModel listSelectionModel,
                          final JTable editorTable)
  {
    this(tableModel, listSelectionModel);
    this.editorTable = editorTable;
  }

  /**
   * Invoked when an action occurs.
   */
  public void actionPerformed(final ActionEvent e)
  {
    if (listSelectionModel.isSelectionEmpty())
    {
      return;
    }

    if (editorTable != null)
    {
      final TableCellEditor cellEditor = editorTable.getCellEditor();
      if(cellEditor != null)
      {
        cellEditor.stopCellEditing();
      }
    }


    final Object[] data = tableModel.getBulkData();
    final ArrayList<Object> result = new ArrayList<Object>(data.length);
    for (int i = 0; i < data.length; i++)
    {
      if (listSelectionModel.isSelectedIndex(i) == false)
      {
        result.add(data[i]);
      }
    }

    tableModel.setBulkData(result.toArray());
  }
}
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