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/*
============================================================================
The Apache Software License, Version 1.1
============================================================================
Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
Redistribution and use in source and binary forms, with or without modifica-
tion, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. The end-user documentation included with the redistribution, if any, must
include the following acknowledgment: "This product includes software
developed by the Apache Software Foundation (http://www.apache.org/)."
Alternately, this acknowledgment may appear in the software itself, if
and wherever such third-party acknowledgments normally appear.
4. The names "Batik" and "Apache Software Foundation" must not be
used to endorse or promote products derived from this software without
prior written permission. For written permission, please contact
[email protected].
5. Products derived from this software may not be called "Apache", nor may
"Apache" appear in their name, without prior written permission of the
Apache Software Foundation.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This software consists of voluntary contributions made by many individuals
on behalf of the Apache Software Foundation. For more information on the
Apache Software Foundation, please see .
*/
package jogamp.graph.font.typecast.ot;
import java.io.DataInputStream;
import java.io.IOException;
import jogamp.graph.font.typecast.ot.table.CmapTable;
import jogamp.graph.font.typecast.ot.table.DirectoryEntry;
import jogamp.graph.font.typecast.ot.table.GlyfDescript;
import jogamp.graph.font.typecast.ot.table.GlyfTable;
import jogamp.graph.font.typecast.ot.table.HdmxTable;
import jogamp.graph.font.typecast.ot.table.HeadTable;
import jogamp.graph.font.typecast.ot.table.HheaTable;
import jogamp.graph.font.typecast.ot.table.HmtxTable;
import jogamp.graph.font.typecast.ot.table.LocaTable;
import jogamp.graph.font.typecast.ot.table.MaxpTable;
import jogamp.graph.font.typecast.ot.table.NameTable;
import jogamp.graph.font.typecast.ot.table.Os2Table;
import jogamp.graph.font.typecast.ot.table.PostTable;
import jogamp.graph.font.typecast.ot.table.Table;
import jogamp.graph.font.typecast.ot.table.TableDirectory;
import jogamp.graph.font.typecast.ot.table.TableFactory;
import jogamp.graph.font.typecast.ot.table.VheaTable;
/**
* The TrueType font.
* @version $Id: OTFont.java,v 1.6 2007-01-31 01:49:18 davidsch Exp $
* @author David Schweinsberg, Sven Gothel
*/
public class OTFont {
private final OTFontCollection _fc;
private TableDirectory _tableDirectory = null;
private Table[] _tables;
private Os2Table _os2;
private CmapTable _cmap;
private GlyfTable _glyf;
private HeadTable _head;
private HheaTable _hhea;
private HdmxTable _hdmx;
private HmtxTable _hmtx;
private LocaTable _loca;
private MaxpTable _maxp;
private NameTable _name;
private PostTable _post;
private VheaTable _vhea;
/**
* Constructor
*/
public OTFont(final OTFontCollection fc) {
_fc = fc;
}
public StringBuilder getName(final int nameIndex, StringBuilder sb) {
if(null == sb) {
sb = new StringBuilder();
}
return _name.getRecordsRecordString(sb, nameIndex);
}
public StringBuilder getAllNames(StringBuilder sb, final String separator) {
if(null != _name) {
if(null == sb) {
sb = new StringBuilder();
}
for(int i=0; i<_name.getNumberOfNameRecords(); i++) {
_name.getRecord(i).getRecordString(sb).append(separator);
}
}
return sb;
}
public Table getTable(final int tableType) {
for (int i = 0; i < _tables.length; i++) {
if ((_tables[i] != null) && (_tables[i].getType() == tableType)) {
return _tables[i];
}
}
return null;
}
public Os2Table getOS2Table() {
return _os2;
}
public CmapTable getCmapTable() {
return _cmap;
}
public HeadTable getHeadTable() {
return _head;
}
public HheaTable getHheaTable() {
return _hhea;
}
public HdmxTable getHdmxTable() {
return _hdmx;
}
public HmtxTable getHmtxTable() {
return _hmtx;
}
public LocaTable getLocaTable() {
return _loca;
}
public MaxpTable getMaxpTable() {
return _maxp;
}
public NameTable getNameTable() {
return _name;
}
public PostTable getPostTable() {
return _post;
}
public VheaTable getVheaTable() {
return _vhea;
}
public int getAscent() {
return _hhea.getAscender();
}
public int getDescent() {
return _hhea.getDescender();
}
public int getNumGlyphs() {
return _maxp.getNumGlyphs();
}
public OTGlyph getGlyph(final int i) {
final GlyfDescript _glyfDescr = _glyf.getDescription(i);
return (null != _glyfDescr)
? new OTGlyph(
_glyfDescr,
_hmtx.getLeftSideBearing(i),
_hmtx.getAdvanceWidth(i))
: null;
}
public TableDirectory getTableDirectory() {
return _tableDirectory;
}
private Table readTable(
final DataInputStream dis,
final int tablesOrigin,
final int tag) throws IOException {
dis.reset();
final DirectoryEntry entry = _tableDirectory.getEntryByTag(tag);
if (entry == null) {
return null;
}
dis.skip(tablesOrigin + entry.getOffset());
return TableFactory.create(_fc, this, entry, dis);
}
/**
* @param dis OpenType/TrueType font file data.
* @param directoryOffset The Table Directory offset within the file. For a
* regular TTF/OTF file this will be zero, but for a TTC (Font Collection)
* the offset is retrieved from the TTC header. For a Mac font resource,
* offset is retrieved from the resource headers.
* @param tablesOrigin The point the table offsets are calculated from.
* Once again, in a regular TTF file, this will be zero. In a TTC is is
* also zero, but within a Mac resource, it is the beggining of the
* individual font resource data.
*/
protected void read(
final DataInputStream dis,
final int directoryOffset,
final int tablesOrigin) throws IOException {
// Load the table directory
dis.reset();
dis.skip(directoryOffset);
_tableDirectory = new TableDirectory(dis);
_tables = new Table[_tableDirectory.getNumTables()];
// Load some prerequisite tables
_head = (HeadTable) readTable(dis, tablesOrigin, Table.head);
_hhea = (HheaTable) readTable(dis, tablesOrigin, Table.hhea);
_maxp = (MaxpTable) readTable(dis, tablesOrigin, Table.maxp);
_loca = (LocaTable) readTable(dis, tablesOrigin, Table.loca);
_vhea = (VheaTable) readTable(dis, tablesOrigin, Table.vhea);
int index = 0;
_tables[index++] = _head;
_tables[index++] = _hhea;
_tables[index++] = _maxp;
if (_loca != null) {
_tables[index++] = _loca;
}
if (_vhea != null) {
_tables[index++] = _vhea;
}
// Load all other tables
for (int i = 0; i < _tableDirectory.getNumTables(); i++) {
final DirectoryEntry entry = _tableDirectory.getEntry(i);
if (entry.getTag() == Table.head
|| entry.getTag() == Table.hhea
|| entry.getTag() == Table.maxp
|| entry.getTag() == Table.loca
|| entry.getTag() == Table.vhea) {
continue;
}
dis.reset();
dis.skip(tablesOrigin + entry.getOffset());
_tables[index] = TableFactory.create(_fc, this, entry, dis);
++index;
}
// Get references to commonly used tables (these happen to be all the
// required tables)
_cmap = (CmapTable) getTable(Table.cmap);
_hdmx = (HdmxTable) getTable(Table.hdmx);
_hmtx = (HmtxTable) getTable(Table.hmtx);
_name = (NameTable) getTable(Table.name);
_os2 = (Os2Table) getTable(Table.OS_2);
_post = (PostTable) getTable(Table.post);
// If this is a TrueType outline, then we'll have at least the
// 'glyf' table (along with the 'loca' table)
_glyf = (GlyfTable) getTable(Table.glyf);
}
@Override
public String toString() {
if (_tableDirectory != null) {
return _tableDirectory.toString();
} else {
return "Empty font";
}
}
}
