/*****************************************************************************
* Copyright (C) The Apache Software Foundation. All rights reserved. *
* ------------------------------------------------------------------------- *
* This software is published under the terms of the Apache Software License *
* version 1.1, a copy of which has been included with this distribution in *
* the LICENSE file. *
*****************************************************************************/
package jogamp.graph.font.typecast.ot.table;
import java.io.DataInput;
import java.io.IOException;
/**
* @version $Id: LocaTable.java,v 1.4 2010-08-10 11:45:43 davidsch Exp $
* @author <a href="mailto:davidsch@dev.java.net">David Schweinsberg</a>
*/
public class LocaTable implements Table {
private final DirectoryEntry _de;
private int[] _offsets = null;
private short _factor = 0;
protected LocaTable(
final DirectoryEntry de,
final DataInput di,
final HeadTable head,
final MaxpTable maxp) throws IOException {
_de = (DirectoryEntry) de.clone();
_offsets = new int[maxp.getNumGlyphs() + 1];
final boolean shortEntries = head.getIndexToLocFormat() == 0;
if (shortEntries) {
_factor = 2;
for (int i = 0; i <= maxp.getNumGlyphs(); i++) {
_offsets[i] = di.readUnsignedShort();
}
} else {
_factor = 1;
for (int i = 0; i <= maxp.getNumGlyphs(); i++) {
_offsets[i] = di.readInt();
}
}
}
public int getOffset(final int i) {
if (_offsets == null) {
return 0;
}
return _offsets[i] * _factor;
}
@Override
public int getType() {
return loca;
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder();
sb.append("'loca' Table - Index To Location Table\n--------------------------------------\n")
.append("Size = ").append(_de.getLength()).append(" bytes, ")
.append(_offsets.length).append(" entries\n");
for (int i = 0; i < _offsets.length; i++) {
sb.append(" Idx ").append(i)
.append(" -> glyfOff 0x").append(getOffset(i)).append("\n");
}
return sb.toString();
}
/**
* 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;
}
}