/**
* Copyright (c) 2004, www.pdfbox.org
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of pdfbox; nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* http://www.pdfbox.org
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*/
package org.pdfbox.util.operator;
import java.util.List;
import org.pdfbox.util.Matrix;
import org.pdfbox.util.PDFOperator;
import org.pdfbox.cos.COSArray;
import org.pdfbox.cos.COSBase;
import org.pdfbox.cos.COSNumber;
import java.io.IOException;
import org.pdfbox.cos.COSString;
/**
* <p>Titre : PDFEngine Modification.</p>
* <p>Description : Structal modification of the PDFEngine class : the long sequence of
* conditions in processOperator is remplaced by this strategy pattern</p>
* <p>Copyright : Copyright (c) 2004</p>
* <p>Soci�t� : DBGS</p>
* @author Huault : huault@free.fr
* @version $Revision: 1.6 $
*/
public class ShowTextGlyph extends OperatorProcessor
{
/**
* TJ Show text, allowing individual glyph positioning.
* @param operator The operator that is being executed.
* @param arguments List
* @throws IOException If there is an error processing this operator.
*/
public void process(PDFOperator operator, List arguments) throws IOException
{
COSArray array = (COSArray)arguments.get( 0 );
float adjustment=0;
for( int i=0; i<array.size(); i++ )
{
COSBase next = array.get( i );
if( next instanceof COSNumber )
{
adjustment = ((COSNumber)next).floatValue();
Matrix adjMatrix = new Matrix();
adjustment=(-adjustment/1000)*context.getGraphicsState().getTextState().getFontSize() *
(context.getGraphicsState().getTextState().getHorizontalScalingPercent()/100);
adjMatrix.setValue( 2, 0, adjustment );
context.setTextMatrix( adjMatrix.multiply( context.getTextMatrix() ) );
}
else if( next instanceof COSString )
{
context.showString( ((COSString)next).getBytes() );
}
else
{
throw new IOException( "Unknown type in array for TJ operation:" + next );
}
}
}
}