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package org.pdfbox.pdmodel.interactive.documentnavigation.destination;
import java.io.IOException;
import org.pdfbox.cos.COSArray;
import org.pdfbox.cos.COSBase;
import org.pdfbox.cos.COSName;
import org.pdfbox.cos.COSString;
import org.pdfbox.pdmodel.common.PDDestinationOrAction;
/**
* This represents a destination in a PDF document.
*
* @author <a href="mailto:ben@benlitchfield.com">Ben Litchfield</a>
* @version $Revision: 1.6 $
*/
public abstract class PDDestination implements PDDestinationOrAction
{
/**
* This will create a new destination depending on the type of COSBase
* that is passed in.
*
* @param base The base level object.
*
* @return A new destination.
*
* @throws IOException If the base cannot be converted to a Destination.
*/
public static PDDestination create( COSBase base ) throws IOException
{
PDDestination retval = null;
if( base == null )
{
//this is ok, just return null.
}
else if( base instanceof COSArray && ((COSArray)base).size() > 0 )
{
COSArray array = (COSArray)base;
COSName type = (COSName)array.getObject( 1 );
String typeString = type.getName();
if( typeString.equals( PDPageFitDestination.TYPE ) ||
typeString.equals( PDPageFitDestination.TYPE_BOUNDED ))
{
retval = new PDPageFitDestination( array );
}
else if( typeString.equals( PDPageFitHeightDestination.TYPE ) ||
typeString.equals( PDPageFitHeightDestination.TYPE_BOUNDED ))
{
retval = new PDPageFitHeightDestination( array );
}
else if( typeString.equals( PDPageFitRectangleDestination.TYPE ) )
{
retval = new PDPageFitRectangleDestination( array );
}
else if( typeString.equals( PDPageFitWidthDestination.TYPE ) ||
typeString.equals( PDPageFitWidthDestination.TYPE_BOUNDED ))
{
retval = new PDPageFitWidthDestination( array );
}
else if( typeString.equals( PDPageXYZDestination.TYPE ) )
{
retval = new PDPageXYZDestination( array );
}
else
{
throw new IOException( "Unknown destination type:" + type );
}
}
else if( base instanceof COSString )
{
retval = new PDNamedDestination( (COSString)base );
}
else if( base instanceof COSName )
{
retval = new PDNamedDestination( (COSName)base );
}
else
{
throw new IOException( "Error: can't convert to Destination " + base );
}
return retval;
}
/**
* Return a string representation of this class.
*
* @return A human readable string.
*/
public String toString()
{
return super.toString();
}
}