File: StrictGeomUtility.java

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/*
 * 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 and Contributors.  All rights reserved.
 */

package org.pentaho.reporting.libraries.fonts.tools;

/**
 * This class is the heart of the alternative geometrics toolkit. It performs
 * the neccessary conversions from and to the AWT classes to the Strict-classes.
 *
 * @author Thomas Morgner
 */
public class StrictGeomUtility
{
  /**
   * This is the correction factor used to convert points into 'Micro-Points'.
   */
  private static final double CORRECTION_FACTOR = 1000.0d;

  /**
   * Hidden, non usable constructor.
   */
  private StrictGeomUtility ()
  {
  }

  /**
   * Converts the given AWT value into a strict value.
   *
   * @param value the AWT point value.
   * @return the internal micro point value.
   */
  public static long toInternalValue (final double value)
  {
    return (long) (value * StrictGeomUtility.CORRECTION_FACTOR);
  }

  /**
   * Converts the given micro point value into an AWT value.
   *
   * @param value the micro point point value.
   * @return the AWT point value.
   */
  public static double toExternalValue (final long value)
  {
    return (value / StrictGeomUtility.CORRECTION_FACTOR);
  }

  public static long multiply (final long x, final long y)
  {
    return (long) ((x * y) / StrictGeomUtility.CORRECTION_FACTOR);
  }
}