org.apache.pdfbox.pdmodel.font.PDFontFactory Maven / Gradle / Ivy
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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.font;
import java.io.IOException;
import java.util.Map;
import org.apache.pdfbox.cos.COSDictionary;
import org.apache.pdfbox.cos.COSName;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* This will create the correct type of font based on information in the dictionary.
*
* @author Ben Litchfield
* @version $Revision: 1.6 $
*/
public class PDFontFactory
{
/**
* private constructor, should only use static methods in this class.
*/
private PDFontFactory()
{
}
/**
* Logger instance.
*/
private static final Log LOG = LogFactory.getLog(PDFontFactory.class);
/**
* This will create the correct font based on information in the dictionary.
*
* @param dic The populated dictionary.
*
* @param fontCache A Map to cache already created fonts
*
* @return The corrent implementation for the font.
*
* @throws IOException If the dictionary is not valid.
*
* @deprecated due to some side effects font caching is no longer supported,
* use {@link #createFont(COSDictionary)} instead
*/
public static PDFont createFont(COSDictionary dic, Map fontCache) throws IOException
{
return createFont(dic);
}
/**
* This will create the correct font based on information in the dictionary.
*
* @param dic The populated dictionary.
*
* @return The corrent implementation for the font.
*
* @throws IOException If the dictionary is not valid.
*/
public static PDFont createFont( COSDictionary dic ) throws IOException
{
PDFont retval = null;
COSName type = (COSName)dic.getDictionaryObject( COSName.TYPE );
if( type != null && !COSName.FONT.equals( type ) )
{
LOG.error( "Cannot create font if /Type is not /Font. Actual=" +type );
}
COSName subType = (COSName)dic.getDictionaryObject( COSName.SUBTYPE );
if (subType == null)
{
throw new IOException( "Cannot create font as /SubType is not set." );
}
if( subType.equals( COSName.TYPE1) )
{
retval = new PDType1Font( dic );
}
else if( subType.equals( COSName.MM_TYPE1 ) )
{
retval = new PDMMType1Font( dic );
}
else if( subType.equals( COSName.TRUE_TYPE ) )
{
retval = new PDTrueTypeFont( dic );
}
else if( subType.equals( COSName.TYPE3 ) )
{
retval = new PDType3Font( dic );
}
else if( subType.equals( COSName.TYPE0 ) )
{
retval = new PDType0Font( dic );
}
else if( subType.equals( COSName.CID_FONT_TYPE0 ) )
{
retval = new PDCIDFontType0Font( dic );
}
else if( subType.equals( COSName.CID_FONT_TYPE2 ) )
{
retval = new PDCIDFontType2Font( dic );
}
else
{
// assuming Type 1 font (see PDFBOX-1988) because it seems that Adobe Reader does this
// however, we may need more sophisticated logic perhaps looking at the FontFile
LOG.warn( "Invalid font subtype '" + subType.getName() + "'" );
return new PDType1Font( dic );
}
return retval;
}
/**
* Create a default font
*
* @return a default font
* @throws IOException if something goes wrong
*/
public static PDFont createDefaultFont() throws IOException
{
COSDictionary dict = new COSDictionary();
dict.setItem(COSName.TYPE, COSName.FONT);
dict.setItem (COSName.SUBTYPE, COSName.TYPE1);
dict.setString(COSName.BASE_FONT, "Arial");
return createFont(dict);
}
}