/*
* 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) 2009 Pentaho Corporation. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.wizard.model;
import java.io.Serializable;
import java.math.BigDecimal;
import java.util.Locale;
import org.pentaho.reporting.libraries.base.util.StringUtils;
import org.pentaho.reporting.libraries.formatting.FastDecimalFormat;
/**
* Todo: Document Me
*
* @author Thomas Morgner
*/
public final class Length implements Serializable
{
private double value;
private LengthUnit unit;
public Length(final LengthUnit unit, final double value)
{
if (value < 0)
{
throw new IllegalArgumentException();
}
if (unit == null)
{
throw new NullPointerException();
}
this.unit = unit;
this.value = value;
}
public double getValue()
{
return value;
}
public Float getNormalizedValue()
{
return new Float(unit.convertToPoints(value));
}
public LengthUnit getUnit()
{
return unit;
}
public boolean equals(final Object o)
{
if (this == o)
{
return true;
}
if (!(o instanceof Length))
{
return false;
}
final Length length = (Length) o;
if (Double.compare(length.value, value) != 0)
{
return false;
}
if (!unit.equals(length.unit))
{
return false;
}
return true;
}
public int hashCode()
{
final long temp = value != +0.0d ? Double.doubleToLongBits(value) : 0L;
int result = (int) (temp ^ (temp >>> 32));
result = 31 * result + unit.hashCode();
return result;
}
public static Length parseLength(final String s) throws IllegalArgumentException
{
if (s == null)
{
return null;
}
try
{
final LengthUnit[] lengthUnits = LengthUnit.values();
for (int i = 0; i < lengthUnits.length; i++)
{
final LengthUnit lengthUnit = lengthUnits[i];
final String name = lengthUnit.getName();
if (StringUtils.endsWithIgnoreCase(s, name))
{
final String number = s.substring(0, s.length() - name.length()).trim();
final double v = Double.parseDouble(number.trim());
return new Length(lengthUnit, v);
}
}
final double v = Double.parseDouble(s.trim());
return new Length(LengthUnit.POINTS, v);
}
catch (final NumberFormatException nfe)
{
throw new IllegalArgumentException("Length '" + s + "' cannot be parsed.");
}
}
public String toString()
{
final FastDecimalFormat numberInstance = new FastDecimalFormat("#0.####", Locale.US);
return numberInstance.format(new BigDecimal(value)) + unit.getName();
}
}