package com.tom_roush.pdfbox.contentstream.operator.state;
import com.tom_roush.pdfbox.contentstream.operator.MissingOperandException;
import com.tom_roush.pdfbox.contentstream.operator.Operator;
import com.tom_roush.pdfbox.contentstream.operator.OperatorProcessor;
import com.tom_roush.pdfbox.cos.COSBase;
import com.tom_roush.pdfbox.cos.COSNumber;
import com.tom_roush.pdfbox.util.Matrix;
import java.io.IOException;
import java.util.List;
/**
* cm: Concatenate matrix to current transformation matrix.
*
* @author Laurent Huault
*/
public class Concatenate extends OperatorProcessor
{
@Override
public void process(Operator operator, List<COSBase> arguments) throws IOException
{
if (arguments.size() < 6)
{
throw new MissingOperandException(operator, arguments);
}
// concatenate matrix to current transformation matrix
COSNumber a = (COSNumber) arguments.get(0);
COSNumber b = (COSNumber) arguments.get(1);
COSNumber c = (COSNumber) arguments.get(2);
COSNumber d = (COSNumber) arguments.get(3);
COSNumber e = (COSNumber) arguments.get(4);
COSNumber f = (COSNumber) arguments.get(5);
Matrix matrix = new Matrix(a.floatValue(), b.floatValue(), c.floatValue(),
d.floatValue(), e.floatValue(), f.floatValue());
context.getGraphicsState().getCurrentTransformationMatrix().concatenate(matrix);
}
@Override
public String getName()
{
return "cm";
}
}