org.jpedal.fonts.tt.conversion.HeadWriter Maven / Gradle / Ivy
The newest version!
/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/java-pdf-library-support/
*
* (C) Copyright 1997-2013, IDRsolutions and Contributors.
*
* This file is part of JPedal
*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---------------
* HeadWriter.java
* ---------------
*/
package org.jpedal.fonts.tt.conversion;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import org.jpedal.fonts.tt.Head;
public class HeadWriter extends Head implements FontTableWriter {
private static final long serialVersionUID = 2762765966941340646L;
public HeadWriter(float[] fontBounds) {
this.FontBBox = fontBounds;
}
@Override
public byte[] writeTable() throws IOException {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
bos.write(FontWriter.setNextUint32(65536)); // id
bos.write(FontWriter.setNextUint32(65536)); // revision
// slot for checksum
bos.write(FontWriter.setNextUint32(0));
bos.write(FontWriter.setNextUint32(1594834165)); // magic number 5F0F3CF5
bos.write(FontWriter.setNextUint16(this.flags));
bos.write(FontWriter.setNextUint16(this.unitsPerEm));
// set value for dates (sample taken from a tt font)
bos.write(FontWriter.setNextUint64(3405888000L));
bos.write(FontWriter.setNextUint64(3405888000L));
// bounds
for (int i = 0; i < 4; i++)
bos.write(FontWriter.setNextSignedInt16((short) this.FontBBox[i]));
// more flags
bos.write(FontWriter.setNextUint16(0)); // macStyle
bos.write(FontWriter.setNextUint16(7)); // lowestRecPPEM (value is a guess based on sample TT)
bos.write(FontWriter.setNextUint16(2)); // fontDirectionHint deprecated (set to 2)
// finally the bit we want indicating size of chunks in mapx
bos.write(FontWriter.setNextUint16(this.format));
bos.write(FontWriter.setNextUint16(0)); // not used but in spec (glyphDataFormat)
bos.flush();
bos.close();
return bos.toByteArray();
}
@Override
public int getIntValue(int key) {
return 0;
}
}