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The Apache PDFBox library is an open source Java tool for working with PDF documents.
/*
* 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.pdmodel.interactive.action;
import java.io.IOException;
import org.apache.pdfbox.cos.COSArray;
import org.apache.pdfbox.cos.COSBase;
import org.apache.pdfbox.cos.COSDictionary;
import org.apache.pdfbox.cos.COSName;
import org.apache.pdfbox.pdmodel.interactive.documentnavigation.destination.PDDestination;
import org.apache.pdfbox.pdmodel.interactive.documentnavigation.destination.PDPageDestination;
/**
* This represents a go-to action that can be executed in a PDF document.
*
* @author Ben Litchfield
* @author Panagiotis Toumasis
*/
public class PDActionGoTo extends PDAction
{
/**
* This type of action this object represents.
*/
public static final String SUB_TYPE = "GoTo";
/**
* Default constructor.
*/
public PDActionGoTo()
{
super();
setSubType( SUB_TYPE );
}
/**
* Constructor.
*
* @param a The action dictionary.
*/
public PDActionGoTo( COSDictionary a )
{
super( a );
}
/**
* This will get the destination to jump to.
*
* @return The D entry of the specific go-to action dictionary.
*
* @throws IOException If there is an error creating the destination.
*/
public PDDestination getDestination() throws IOException
{
return PDDestination.create(getCOSObject().getDictionaryObject(COSName.D));
}
/**
* This will set the destination to jump to.
*
* @param d The destination.
*
* @throws IllegalArgumentException if the destination is not a page dictionary object.
*/
public void setDestination( PDDestination d )
{
if (d instanceof PDPageDestination)
{
PDPageDestination pageDest = (PDPageDestination) d;
COSArray destArray = pageDest.getCOSObject();
if (destArray.size() >= 1)
{
COSBase page = destArray.getObject(0);
if (!(page instanceof COSDictionary))
{
throw new IllegalArgumentException("Destination of a GoTo action must be "
+ "a page dictionary object");
}
}
}
getCOSObject().setItem(COSName.D, d);
}
}