/* * 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.util.operator; import java.util.List; import java.io.IOException; import org.apache.pdfbox.cos.COSBase; import org.apache.pdfbox.cos.COSNumber; import org.apache.pdfbox.util.Matrix; import org.apache.pdfbox.util.PDFOperator; /** * * @author Huault : huault@free.fr * @version $Revision: 1.5 $ */ public class Concatenate extends OperatorProcessor { /** * process : cm : Concatenate matrix to current transformation matrix. * @param operator The operator that is being executed. * @param arguments List * @throws IOException If there is an error processing the operator. */ public void process(PDFOperator operator, List<COSBase> arguments) throws IOException { //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 newMatrix = new Matrix(); newMatrix.setValue(0, 0, a.floatValue()); newMatrix.setValue(0, 1, b.floatValue()); newMatrix.setValue(1, 0, c.floatValue()); newMatrix.setValue(1, 1, d.floatValue()); newMatrix.setValue(2, 0, e.floatValue()); newMatrix.setValue(2, 1, f.floatValue()); //this line has changed context.getGraphicsState().setCurrentTransformationMatrix( newMatrix.multiply( context.getGraphicsState().getCurrentTransformationMatrix() ) ); } }