org.apache.fontbox.ttf.CFFTable Maven / Gradle / Ivy
/*
* 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.fontbox.ttf;
import java.io.IOException;
import org.apache.fontbox.cff.CFFFont;
import org.apache.fontbox.cff.CFFParser;
/**
* PostScript font program (compact font format).
*/
public class CFFTable extends TTFTable
{
/**
* A tag that identifies this table type.
*/
public static final String TAG = "CFF ";
private CFFFont cffFont;
CFFTable(TrueTypeFont font)
{
super(font);
}
/**
* This will read the required data from the stream.
*
* @param ttf The font that is being read.
* @param data The stream to read the data from.
* @throws java.io.IOException If there is an error reading the data.
*/
@Override
void read(TrueTypeFont ttf, TTFDataStream data) throws IOException
{
byte[] bytes = data.read((int)getLength());
CFFParser parser = new CFFParser();
cffFont = parser.parse(bytes, new CFFBytesource(font)).get(0);
initialized = true;
}
/**
* Returns the CFF font, which is a compact representation of a PostScript Type 1, or CIDFont
*/
public CFFFont getFont()
{
return cffFont;
}
/**
* Allows bytes to be re-read later by CFFParser.
*/
private static class CFFBytesource implements CFFParser.ByteSource
{
private final TrueTypeFont ttf;
CFFBytesource(TrueTypeFont ttf)
{
this.ttf = ttf;
}
@Override
public byte[] getBytes() throws IOException
{
return ttf.getTableBytes(ttf.getTableMap().get(CFFTable.TAG));
}
}
}