/*!
* 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.engine.classic.wizard.model;
import java.io.Serializable;
import java.io.ObjectStreamException;
import org.pentaho.reporting.engine.classic.core.util.ObjectStreamResolveException;
public final class LengthUnit implements Serializable
{
public static final LengthUnit POINTS = new LengthUnit("pt", 1);
public static final LengthUnit PERCENTAGE = new LengthUnit("%", -1);
public static final LengthUnit PICA = new LengthUnit("pc", 12);
public static final LengthUnit MM = new LengthUnit("mm", 72 / (2.54 * 10));
public static final LengthUnit CM = new LengthUnit("cm", 72.0 / 2.54);
public static final LengthUnit INCH = new LengthUnit("in", 72);
private double dotsPerUnit;
private String name;
private LengthUnit(final String name, final double dotsPerUnit)
{
this.name = name;
this.dotsPerUnit = dotsPerUnit;
}
public String getName()
{
return name;
}
public double getDotsPerUnit()
{
return dotsPerUnit;
}
public double convertFromPoints(final double points)
{
return points / dotsPerUnit;
}
public double convertToPoints(final double unit)
{
return unit * dotsPerUnit;
}
public static LengthUnit[] values()
{
return new LengthUnit[]{INCH, CM, MM, PICA, PERCENTAGE, POINTS};
}
/**
* Replaces the automatically generated instance with one of the enumeration instances.
*
* @return the resolved element
*
* @throws ObjectStreamException if the element could not be resolved.
*/
private Object readResolve ()
throws ObjectStreamException
{
if (this.dotsPerUnit == INCH.dotsPerUnit)
{
return INCH;
}
if (this.dotsPerUnit == CM.dotsPerUnit)
{
return CM;
}
if (this.dotsPerUnit == MM.dotsPerUnit)
{
return MM;
}
if (this.dotsPerUnit == PICA.dotsPerUnit)
{
return PICA;
}
if (this.dotsPerUnit == PERCENTAGE.dotsPerUnit)
{
return PERCENTAGE;
}
if (this.dotsPerUnit == POINTS.dotsPerUnit)
{
return POINTS;
}
// unknown element alignment...
throw new ObjectStreamResolveException();
}
}