/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.pdfbox.cos;
import java.io.IOException;
import java.io.OutputStream;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.text.NumberFormat;
import org.apache.pdfbox.exceptions.COSVisitorException;
/**
* This class represents a floating point number in a PDF document.
*
* @author <a href="mailto:ben@benlitchfield.com">Ben Litchfield</a>
* @version $Revision: 1.17 $
*/
public class COSFloat extends COSNumber
{
private float value;
/**
* Constructor.
*
* @param aFloat The primitive float object that this object wraps.
*/
public COSFloat( float aFloat )
{
value = aFloat;
}
/**
* Constructor.
*
* @param aFloat The primitive float object that this object wraps.
*
* @throws IOException If aFloat is not a float.
*/
public COSFloat( String aFloat ) throws IOException
{
try
{
value = Float.parseFloat( aFloat );
}
catch( NumberFormatException e )
{
throw new IOException( "Error expected floating point number actual='" +aFloat + "'" );
}
}
/**
* Set the value of the float object.
*
* @param floatValue The new float value.
*/
public void setValue( float floatValue )
{
value = floatValue;
}
/**
* The value of the float object that this one wraps.
*
* @return The value of this object.
*/
public float floatValue()
{
return value;
}
/**
* The value of the double object that this one wraps.
*
* @return The double of this object.
*/
public double doubleValue()
{
return value;
}
/**
* This will get the integer value of this object.
*
* @return The int value of this object,
*/
public long longValue()
{
return (long)value;
}
/**
* This will get the integer value of this object.
*
* @return The int value of this object,
*/
public int intValue()
{
return (int)value;
}
/**
* {@inheritDoc}
*/
public boolean equals( Object o )
{
return o instanceof COSFloat && Float.floatToIntBits(((COSFloat)o).value) == Float.floatToIntBits(value);
}
/**
* {@inheritDoc}
*/
public int hashCode()
{
return Float.floatToIntBits(value);
}
/**
* {@inheritDoc}
*/
public String toString()
{
return "COSFloat{" + value + "}";
}
/**
* visitor pattern double dispatch method.
*
* @param visitor The object to notify when visiting this object.
* @return any object, depending on the visitor implementation, or null
* @throws COSVisitorException If an error occurs while visiting this object.
*/
public Object accept(ICOSVisitor visitor) throws COSVisitorException
{
return visitor.visitFromFloat(this);
}
/**
* This will output this string as a PDF object.
*
* @param output The stream to write to.
* @throws IOException If there is an error writing to the stream.
*/
public void writePDF( OutputStream output ) throws IOException
{
DecimalFormat formatDecimal = (DecimalFormat)NumberFormat.getNumberInstance();
formatDecimal.setMaximumFractionDigits( 10 );
formatDecimal.setGroupingUsed( false );
DecimalFormatSymbols symbols = formatDecimal.getDecimalFormatSymbols();
symbols.setDecimalSeparator( '.' );
formatDecimal.setDecimalFormatSymbols( symbols );
output.write(formatDecimal.format( value ).getBytes("ISO-8859-1"));
}
}