/*
============================================================================
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
apache@apache.org.
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 <http://www.apache.org/>.
*/
package jogamp.graph.font.typecast.ot.table;
import java.io.ByteArrayInputStream;
import java.io.DataInput;
import java.io.DataInputStream;
import java.io.IOException;
/**
*
* @author <a href="mailto:davidsch@dev.java.net">David Schweinsberg</a>
* @version $Id: GsubTable.java,v 1.3 2007-01-24 09:47:46 davidsch Exp $
*/
public class GsubTable implements Table, LookupSubtableFactory {
private final DirectoryEntry _de;
private final ScriptList _scriptList;
private final FeatureList _featureList;
private final LookupList _lookupList;
protected GsubTable(final DirectoryEntry de, final DataInput di) throws IOException {
_de = (DirectoryEntry) de.clone();
// Load into a temporary buffer, and create another input stream
final byte[] buf = new byte[de.getLength()];
di.readFully(buf);
final DataInputStream dis = new DataInputStream(new ByteArrayInputStream(buf));
// GSUB Header
/* final int version = */ dis.readInt();
final int scriptListOffset = dis.readUnsignedShort();
final int featureListOffset = dis.readUnsignedShort();
final int lookupListOffset = dis.readUnsignedShort();
// Script List
_scriptList = new ScriptList(dis, scriptListOffset);
// Feature List
_featureList = new FeatureList(dis, featureListOffset);
// Lookup List
_lookupList = new LookupList(dis, lookupListOffset, this);
}
/**
* 1 - Single - Replace one glyph with one glyph
* 2 - Multiple - Replace one glyph with more than one glyph
* 3 - Alternate - Replace one glyph with one of many glyphs
* 4 - Ligature - Replace multiple glyphs with one glyph
* 5 - Context - Replace one or more glyphs in context
* 6 - Chaining - Context Replace one or more glyphs in chained context
*/
@Override
public LookupSubtable read(
final int type,
final DataInputStream dis,
final int offset) throws IOException {
LookupSubtable s = null;
switch (type) {
case 1:
s = SingleSubst.read(dis, offset);
break;
case 2:
// s = MultipleSubst.read(dis, offset);
break;
case 3:
// s = AlternateSubst.read(dis, offset);
break;
case 4:
s = LigatureSubst.read(dis, offset);
break;
case 5:
// s = ContextSubst.read(dis, offset);
break;
case 6:
// s = ChainingSubst.read(dis, offset);
break;
}
return s;
}
/** Get the table type, as a table directory value.
* @return The table type
*/
@Override
public int getType() {
return GSUB;
}
public ScriptList getScriptList() {
return _scriptList;
}
public FeatureList getFeatureList() {
return _featureList;
}
public LookupList getLookupList() {
return _lookupList;
}
@Override
public String toString() {
return "GSUB";
}
public static String lookupTypeAsString(final int type) {
switch (type) {
case 1:
return "Single";
case 2:
return "Multiple";
case 3:
return "Alternate";
case 4:
return "Ligature";
case 5:
return "Context";
case 6:
return "Chaining";
}
return "Unknown";
}
/**
* Get a directory entry for this table. This uniquely identifies the
* table in collections where there may be more than one instance of a
* particular table.
* @return A directory entry
*/
@Override
public DirectoryEntry getDirectoryEntry() {
return _de;
}
}