/*
 * 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 - 2013 Pentaho Corporation..  All rights reserved.
 */

package org.pentaho.reporting.engine.classic.core.layout.table;

import junit.framework.TestCase;
import org.pentaho.reporting.engine.classic.core.layout.process.CleanTableRowsPreparationStep;
import org.pentaho.reporting.engine.classic.core.layout.process.CleanTableRowsPreparationStep.Cell;
import org.pentaho.reporting.libraries.base.util.GenericObjectTable;

public class ComputeSafeCutsTest extends TestCase {
  public ComputeSafeCutsTest() {
  }

  public void testNonSpan() {
    GenericObjectTable<Cell> cells = new GenericObjectTable<Cell>();
    cells.setObject( 0, 0, new Cell( 0, 0, 1, 0 ) );
    cells.setObject( 1, 0, new Cell( 1, 0, 1, 10 ) );
    cells.setObject( 2, 0, new Cell( 2, 0, 1, 20 ) );
    cells.setObject( 3, 0, new Cell( 3, 0, 1, 30 ) );

    int pageOffset = 0;
    assertEquals( 0, CleanTableRowsPreparationStep.computeSafeCut( pageOffset, cells, 4 ) );
  }

  public void testNonSpan2() {
    GenericObjectTable<Cell> cells = new GenericObjectTable<Cell>();
    cells.setObject( 0, 0, new Cell( 0, 0, 1, 0 ) );
    cells.setObject( 1, 0, new Cell( 1, 0, 1, 10 ) );
    cells.setObject( 2, 0, new Cell( 2, 0, 1, 20 ) );
    cells.setObject( 3, 0, new Cell( 3, 0, 1, 30 ) );

    int pageOffset = 20;
    assertEquals( 2, CleanTableRowsPreparationStep.computeSafeCut( pageOffset, cells, 4 ) );
  }

  public void testNonSpan3() {
    GenericObjectTable<Cell> cells = new GenericObjectTable<Cell>();
    cells.setObject( 0, 0, new Cell( 0, 0, 1, 0 ) );
    cells.setObject( 1, 0, new Cell( 1, 0, 2, 10 ) );
    cells.setObject( 3, 0, new Cell( 3, 0, 1, 30 ) );
    cells.setObject( 4, 0, new Cell( 4, 0, 1, 40 ) );

    int pageOffset = 20;
    assertEquals( 1, CleanTableRowsPreparationStep.computeSafeCut( pageOffset, cells, 4 ) );
  }

  private void addCell( GenericObjectTable<Cell> cells, Cell c ) {
    for ( int i = 0; i < c.getRowSpan(); i += 1 ) {
      cells.setObject( c.getRowIndex() + i, c.getColIndex(), c );
    }
  }

  public void testInterleavedSpan() {
    GenericObjectTable<Cell> cells = new GenericObjectTable<Cell>();
    addCell( cells, new Cell( 0, 0, 2, 0 ) );
    addCell( cells, new Cell( 0, 1, 1, 0 ) );
    addCell( cells, new Cell( 1, 1, 2, 10 ) );
    addCell( cells, new Cell( 2, 0, 2, 20 ) );
    addCell( cells, new Cell( 3, 1, 2, 30 ) );
    addCell( cells, new Cell( 4, 0, 1, 40 ) );

    int pageOffset = 35;
    assertEquals( 2, CleanTableRowsPreparationStep.computeSafeCut( pageOffset, cells, 5 ) );

    pageOffset = 25;
    assertEquals( 0, CleanTableRowsPreparationStep.computeSafeCut( pageOffset, cells, 5 ) );
  }

}