# SetTextHorizontalScaling.java

    /*
     * 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.contentstream.operator.text;

    import java.io.IOException;
    import java.util.List;

    import org.apache.pdfbox.contentstream.operator.MissingOperandException;
    import org.apache.pdfbox.contentstream.operator.Operator;
    import org.apache.pdfbox.contentstream.operator.OperatorName;
    import org.apache.pdfbox.contentstream.operator.OperatorProcessor;
    import org.apache.pdfbox.cos.COSBase;
    import org.apache.pdfbox.cos.COSNumber;

    /**
     * Tz: Set horizontal text scaling.
     *
     * @author Ben Litchfield
     */
    public class SetTextHorizontalScaling extends OperatorProcessor
    {
        @Override
        public void process(Operator operator, List<COSBase> arguments) throws IOException
        {
            if (arguments.isEmpty())
            {
                throw new MissingOperandException(operator, arguments);
            }

            COSBase base = arguments.get(0);
            if (!(base instanceof COSNumber))
            {
                return;
            }
            COSNumber scaling = (COSNumber) base;
            context.getGraphicsState().getTextState().setHorizontalScaling(scaling.floatValue());
        }

        @Override
        public String getName()
        {
            return OperatorName.SET_TEXT_HORIZONTAL_SCALING;
        }
    }