/*
* $Id: FontFileWriter.java,v 1.15 2004/10/04 02:25:39 eed3si9n Exp $
*
* $Copyright: copyright (c) 2003, e.e d3si9n $
* $License:
* This source code is part of DoubleType.
* DoubleType is a graphical typeface designer.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This Program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* In addition, as a special exception, e.e d3si9n gives permission to
* link the code of this program with any Java Platform that is available
* to public with free of charge, including but not limited to
* Sun Microsystem's JAVA(TM) 2 RUNTIME ENVIRONMENT (J2RE),
* and distribute linked combinations including the two.
* You must obey the GNU General Public License in all respects for all
* of the code used other than Java Platform. If you modify this file,
* you may extend this exception to your version of the file, but you are not
* obligated to do so. If you do not wish to do so, delete this exception
* statement from your version.
* $
*/
package org.doubletype.ossa.truetype;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;
/**
* @author e.e
*/
public class FontFileWriter extends FontFormatWriter {
private CmapWriter m_cmap;
private GlyfWriter m_glyf;
private LocaWriter m_loca;
private HeadWriter m_head;
private HdmxWriter m_hdmx;
private HheaWriter m_hhea;
private HmtxWriter m_hmtx;
private MaxpWriter m_maxp;
private NameWriter m_name;
private PostWriter m_post;
private OS2Writer m_os2;
protected RandomAccessFile m_file;
private ArrayList<FontFormatWriter> m_tables = new ArrayList<>();
public FontFileWriter(RandomAccessFile a_file) {
super();
m_file = a_file;
m_loca = new LocaWriter();
m_maxp = new MaxpWriter();
m_head = new HeadWriter();
m_hdmx = new HdmxWriter();
m_os2 = new OS2Writer(m_head);
m_cmap = new CmapWriter(m_os2);
m_glyf = new GlyfWriter(m_loca, m_maxp,
m_head, m_hdmx);
m_hhea = new HheaWriter(m_glyf, m_head);
m_hmtx = new HmtxWriter(m_glyf, m_hhea);
m_name = new NameWriter();
m_post = new PostWriter();
// http://www.microsoft.com/typography/otspec/recom.htm
// head, hhea, maxp, OS/2, hmtx, LTSH, VDMX, hdmx, cmap,
// fpgm, prep, cvt, loca, glyf, kern, name, post, gasp, PCLT, DSIG
/*
m_tables.add(m_head);
m_tables.add(m_hhea);
m_tables.add(m_maxp);
m_tables.add(m_os2);
m_tables.add(m_hmtx);
m_tables.add(m_hdmx);
m_tables.add(m_cmap);
m_tables.add(m_loca);
m_tables.add(m_glyf);
m_tables.add(m_name);
m_tables.add(m_post);
*/
// Verdana has head, hhea, maxp, OS/2, gasp, name, cmap, loca
// LTSH, VDMX, prep, fpgm, cvt, hmtx, hdmx, glyf, post, kern, edt0, DSIG
m_tables.add(m_head);
m_tables.add(m_hhea);
m_tables.add(m_maxp);
m_tables.add(m_os2);
m_tables.add(m_name);
m_tables.add(m_cmap);
m_tables.add(m_loca);
m_tables.add(m_hmtx);
m_tables.add(m_hdmx);
m_tables.add(m_glyf);
m_tables.add(m_post);
}
/**
* write TrueType file to the random access file
*/
public void write() throws IOException {
m_cmap.write();
// hmtx must be written before hhea
m_hmtx.write();
m_hhea.write();
m_glyf.write();
m_loca.write();
m_head.setCheckSumAdjustment(0);
m_head.write();
m_maxp.write(); // must be written after m_glyf
m_hdmx.write();
m_name.write();
m_post.write();
m_os2.write();
writeTableDirectory();
byte[] tableDir = toByteArray();
for (FontFormatWriter table : m_tables) {
m_buffer.write(table.toByteArray());
} // for table
long checkSum = 0xb1b0afba - (0xffffffff & getCheckSum());
m_head.setCheckSumAdjustment(checkSum);
m_head.reset();
m_head.write();
reset();
m_buffer.write(tableDir);
for (FontFormatWriter table : m_tables) {
m_buffer.write(table.toByteArray());
} // for table
m_file.write(toByteArray());
m_file.close();
}
public void setAscent(int a_value) {
m_os2.setTypoAscender(a_value);
m_os2.setCapHeight(a_value);
}
public void setDescent(int a_value) {
m_os2.setTypoDescender(-a_value);
}
public void setXHeight(int a_value) {
m_os2.setXHeight(a_value);
}
public void setLineGap(int a_value) {
m_os2.setTypoLineGap(a_value);
m_hhea.setLineGap(a_value);
}
public void setFontFamilyName(String a_name) {
m_name.m_familyName = a_name;
}
public void setCopyrightYear(String a_year) {
m_name.m_year = a_year;
}
public void setManufacturer(String a_manufacturer) {
m_name.m_manufacturer = a_manufacturer;
}
public void setFontVersion(String a_version) {
m_name.m_version = a_version;
}
public void addUnicodeRange(TTUnicodeRange a_range) {
m_cmap.addUnicodeRange(a_range);
}
/**
* http://www.microsoft.com/typography/otspec/os2.htm
*
* @param a_codeRange position of the bit. For example, JIS will be 17.
*/
public void setCodeRangeFlag(int a_codeRange) {
m_os2.setCodePageRangeFlag(a_codeRange);
}
/**
* adds glyph to the 'glyf' subtable.
*
* @param a_glyph the glyph to be added.
* @return 'glyf' index of the added glyph.
*/
public int addGlyph(TTGlyph a_glyph) {
return m_glyf.add(a_glyph);
}
public TTGlyph getGlyph(int a_index) {
return m_glyf.getGlyph(a_index);
}
public void setCreationDate(Date a_date) {
m_head.setCreationDate(a_date);
}
public void setModificationDate(Date a_date) {
m_head.setModificationDate(a_date);
}
/**
* adds character mapping to
*
* @param a_unicode unicode of the character
* @param a_glyfIndex 'glyf' index obtained from #addGlyph
*/
public void addCharacterMapping(long a_unicode, long a_glyfIndex) {
m_cmap.addMapping(a_unicode, a_glyfIndex);
}
public long getCharacterMapping(long a_unicode) {
return m_cmap.getGlyfIndex(new Long(a_unicode));
}
/**
* writes table directory.
*
* @throws IOException
*/
private void writeTableDirectory() throws IOException {
int headerLength = m_tables.size() * 16 + 16;
int tableOffset = headerLength;
for (FontFormatWriter table : m_tables) {
table.setOffset(tableOffset);
tableOffset += table.size();
} // for table
@SuppressWarnings("unchecked")
ArrayList<FontFormatWriter> tables = (ArrayList<FontFormatWriter>) m_tables.clone();
Collections.sort(tables, new Comparator<FontFormatWriter>() {
public int compare(FontFormatWriter a_lhs, FontFormatWriter a_rhs) {
return a_lhs.getTag().compareTo(a_rhs.getTag());
}
public boolean equals(Object a_value) {
return false;
}
});
writeFixed32(1.0);
int numOfTables = tables.size();
writeUInt16(numOfTables);
int searchRange = getSearchRange(numOfTables);
writeUInt16(searchRange);
int entrySelector = getEntrySelector(numOfTables);
writeUInt16(entrySelector);
writeUInt16(numOfTables * 16 - searchRange);
for (FontFormatWriter table : tables) {
writeTag(table.getTag());
writeUInt32(table.getCheckSum());
writeUInt32(table.getOffset());
writeUInt32(table.size());
} // for
// padding is always 4 zeros
for (int i = 0; i < 4; i++) {
writeUInt8(0);
}
}
private int getSearchRange(int a_value) {
int retval
= (int) (Math.pow(2, Math.floor(Math.log(a_value) / Math.log(2))));
return 16 * retval;
}
private int getEntrySelector(int a_value) {
int retval
= (int) Math.floor(Math.log(a_value) / Math.log(2));
return retval;
}
}