/*
* 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.rendering.font;
import java.awt.geom.GeneralPath;
import java.io.IOException;
import java.util.HashMap;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.fontbox.cff.Type2CharString;
import org.apache.pdfbox.pdmodel.font.PDCIDFontType0;
/**
* GeneralPath conversion for CFF CIDFont.
*
* @author John Hewson
*/
public class CIDType0Glyph2D implements Glyph2D
{
private static final Log LOG = LogFactory.getLog(CIDType0Glyph2D.class);
private final HashMap<Integer, GeneralPath> cache = new HashMap<Integer, GeneralPath>();
private final PDCIDFontType0 font;
private final String fontName;
/**
* Constructor.
*
* @param font Type 0 CIDFont
*/
public CIDType0Glyph2D(PDCIDFontType0 font) // todo: what about PDCIDFontType2?
{
this.font = font;
fontName = font.getBaseFont();
}
@Override
public GeneralPath getPathForCharacterCode(int code)
{
int cid = font.getParent().codeToCID(code);
if (cache.containsKey(code))
{
return cache.get(code);
}
try
{
Type2CharString charString = font.getType2CharString(cid);
if (charString.getGID() == 0)
{
String cidHex = String.format("%04x", cid);
LOG.warn("No glyph for " + code + " (CID " + cidHex + ") in font " + fontName);
}
GeneralPath path = charString.getPath();
cache.put(code, path);
return path;
}
catch (IOException e)
{
LOG.error("Glyph rendering failed", e); // todo: escalate this error?
return new GeneralPath();
}
}
@Override
public void dispose()
{
cache.clear();
}
}