/*
* 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.util.List;
import org.apache.pdfbox.cos.COSBase;
import org.apache.pdfbox.cos.COSNumber;
import org.apache.pdfbox.contentstream.operator.Operator;
import org.apache.pdfbox.contentstream.operator.OperatorProcessor;
/**
* Tc: Set character spacing.
*
* @author Laurent Huault
*/
public class SetCharSpacing extends OperatorProcessor
{
@Override
public void process(Operator operator, List<COSBase> arguments)
{
//set character spacing
if(arguments.size() > 0)
{
//There are some documents which are incorrectly structured, and have
//a wrong number of arguments to this, so we will assume the last argument
//in the list
Object charSpacing = arguments.get(arguments.size()-1);
if(charSpacing instanceof COSNumber)
{
COSNumber characterSpacing = (COSNumber)charSpacing;
context.getGraphicsState().getTextState().setCharacterSpacing(characterSpacing.floatValue());
}
}
}
@Override
public String getName()
{
return "Tc";
}
}