/*
* 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.tools.gui;
import java.awt.Component;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeCellRenderer;
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.cos.COSNull;
import org.apache.pdfbox.cos.COSFloat;
import org.apache.pdfbox.cos.COSInteger;
import org.apache.pdfbox.cos.COSStream;
import org.apache.pdfbox.cos.COSString;
/**
* A class to render tree cells for the pdfviewer.
*
* @author <a href="mailto:ben@benlitchfield.com">Ben Litchfield</a>
* @version $Revision: 1.6 $
*/
public class PDFTreeCellRenderer extends DefaultTreeCellRenderer
{
/**
* {@inheritDoc}
*/
public Component getTreeCellRendererComponent(
JTree tree,
Object nodeValue,
boolean isSelected,
boolean expanded,
boolean leaf,
int row,
boolean componentHasFocus)
{
nodeValue = convertToTreeObject( nodeValue );
return super.getTreeCellRendererComponent( tree, nodeValue, isSelected, expanded, leaf,
row, componentHasFocus );
}
private Object convertToTreeObject( Object nodeValue )
{
if( nodeValue instanceof MapEntry)
{
MapEntry entry = (MapEntry)nodeValue;
COSName key = (COSName)entry.getKey();
COSBase value = (COSBase)entry.getValue();
nodeValue = key.getName() + ":" + convertToTreeObject( value );
}
else if( nodeValue instanceof COSFloat )
{
nodeValue = "" + ((COSFloat)nodeValue).floatValue();
}
else if( nodeValue instanceof COSInteger )
{
nodeValue = "" + ((COSInteger)nodeValue).intValue();
}
else if( nodeValue instanceof COSString )
{
nodeValue = ((COSString)nodeValue).getString();
}
else if( nodeValue instanceof COSName )
{
nodeValue = ((COSName)nodeValue).getName();
}
else if( nodeValue instanceof ArrayEntry)
{
ArrayEntry entry = (ArrayEntry)nodeValue;
nodeValue = "[" + entry.getIndex() + "]" + convertToTreeObject( entry.getValue() );
}
else if( nodeValue instanceof COSNull )
{
nodeValue = "null";
}
else if( nodeValue instanceof COSDictionary )
{
COSDictionary dict = (COSDictionary)nodeValue;
if( nodeValue instanceof COSStream )
{
nodeValue = "Stream";
}
else
{
nodeValue = "Dictionary";
}
COSName type = (COSName)dict.getDictionaryObject( COSName.TYPE );
if( type != null )
{
nodeValue = nodeValue + "(" + type.getName();
COSName subType = (COSName)dict.getDictionaryObject( COSName.SUBTYPE );
if( subType != null )
{
nodeValue = nodeValue + ":" + subType.getName();
}
nodeValue = nodeValue + ")";
}
}
else if( nodeValue instanceof COSArray )
{
nodeValue="Array";
}
else if( nodeValue instanceof COSString )
{
nodeValue = ((COSString)nodeValue).getString();
}
return nodeValue;
}
}