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- /* ====================================================================
- Licensed to the Apache Software Foundation (ASF) under one or more
- contributor license agreements. See the NOTICE file distributed with
- this work for additional information regarding copyright ownership.
- The ASF licenses this file to You under the Apache License, Version 2.0
- (the "License"); you may not use this file except in compliance with
- the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
- ==================================================================== */
-
- package org.apache.poi.hwpf.model;
-
- import java.util.Arrays;
-
- import org.apache.poi.hwpf.HWPFDocument;
- import org.apache.poi.util.BitField;
- import org.apache.poi.util.BitFieldFactory;
- import org.apache.poi.util.IOUtils;
- import org.apache.poi.util.Internal;
- import org.apache.poi.util.LittleEndian;
- import org.apache.poi.util.LittleEndianConsts;
-
- /**
- * FFN - Font Family Name. FFN is a data structure that stores the names of the Main
- * Font and that of Alternate font as an array of characters. It has also a header
- * that stores info about the whole structure and the fonts
- */
- @Internal
- public final class Ffn {
-
- private int _cbFfnM1;//total length of FFN - 1.
- private byte _info;
- private static BitField _prq = BitFieldFactory.getInstance(0x0003);// pitch request
- private static BitField _fTrueType = BitFieldFactory.getInstance(0x0004);// when 1, font is a TrueType font
- private static BitField _ff = BitFieldFactory.getInstance(0x0070);
- private short _wWeight;// base weight of font
- private byte _chs;// character set identifier
- private byte _ixchSzAlt; // index into ffn.szFfn to the name of
- // the alternate font
- private byte[] _panose = new byte[10];//????
- private byte[] _fontSig = new byte[24];//????
-
- // zero terminated string that records name of font, cuurently not
- // supporting Extended chars
- private char[] _xszFfn;
-
- // extra facilitator members
- private int _xszFfnLength;
-
- public Ffn(byte[] buf, int offset) {
- int offsetTmp = offset;
-
- _cbFfnM1 = LittleEndian.getUByte(buf, offset);
- offset += LittleEndianConsts.BYTE_SIZE;
- _info = buf[offset];
- offset += LittleEndianConsts.BYTE_SIZE;
- _wWeight = LittleEndian.getShort(buf, offset);
- offset += LittleEndianConsts.SHORT_SIZE;
- _chs = buf[offset];
- offset += LittleEndianConsts.BYTE_SIZE;
- _ixchSzAlt = buf[offset];
- offset += LittleEndianConsts.BYTE_SIZE;
-
- // read panose and fs so we can write them back out.
- System.arraycopy(buf, offset, _panose, 0, _panose.length);
- offset += _panose.length;
- System.arraycopy(buf, offset, _fontSig, 0, _fontSig.length);
- offset += _fontSig.length;
-
- offsetTmp = offset - offsetTmp;
- _xszFfnLength = (this.getSize() - offsetTmp) / 2;
-
- if (_xszFfnLength < 0) {
- throw new IllegalArgumentException("Had invalid computed size: " + _xszFfnLength + " with size " + getSize() + " and offsetTmp: " + offsetTmp);
- }
-
- _xszFfn = new char[_xszFfnLength];
-
- for (int i = 0; i < _xszFfnLength; i++) {
- _xszFfn[i] = (char) LittleEndian.getShort(buf, offset);
- offset += LittleEndianConsts.SHORT_SIZE;
- }
-
-
- }
-
- public int get_cbFfnM1() {
- return _cbFfnM1;
- }
-
- public short getWeight() {
- return _wWeight;
- }
-
- public byte getChs() {
- return _chs;
- }
-
- public byte[] getPanose() {
- return _panose;
- }
-
- public byte[] getFontSig() {
- return _fontSig;
- }
-
- public int getSize() {
- return (_cbFfnM1 + 1);
- }
-
- public String getMainFontName() {
- int index = 0;
- for (; index < _xszFfnLength; index++) {
- if (_xszFfn[index] == '\0') {
- break;
- }
- }
- return new String(_xszFfn, 0, index);
- }
-
- public String getAltFontName() {
- int index = _ixchSzAlt;
- for (; index < _xszFfnLength; index++) {
- if (_xszFfn[index] == '\0') {
- break;
- }
- }
- return new String(_xszFfn, _ixchSzAlt, index);
-
- }
-
- public void set_cbFfnM1(int _cbFfnM1) {
- this._cbFfnM1 = _cbFfnM1;
- }
-
- // changed protected to public
- public byte[] toByteArray() {
- int offset = 0;
- byte[] buf = IOUtils.safelyAllocate(this.getSize(), HWPFDocument.getMaxRecordLength());
-
- buf[offset] = (byte) _cbFfnM1;
- offset += LittleEndianConsts.BYTE_SIZE;
- buf[offset] = _info;
- offset += LittleEndianConsts.BYTE_SIZE;
- LittleEndian.putShort(buf, offset, _wWeight);
- offset += LittleEndianConsts.SHORT_SIZE;
- buf[offset] = _chs;
- offset += LittleEndianConsts.BYTE_SIZE;
- buf[offset] = _ixchSzAlt;
- offset += LittleEndianConsts.BYTE_SIZE;
-
- System.arraycopy(_panose, 0, buf, offset, _panose.length);
- offset += _panose.length;
- System.arraycopy(_fontSig, 0, buf, offset, _fontSig.length);
- offset += _fontSig.length;
-
- for (int i = 0; i < _xszFfn.length; i++) {
- LittleEndian.putShort(buf, offset, (short) _xszFfn[i]);
- offset += LittleEndianConsts.SHORT_SIZE;
- }
-
- return buf;
-
- }
-
- @Override
- public boolean equals(Object other) {
- if (!(other instanceof Ffn)) return false;
- Ffn o = (Ffn) other;
-
- return (
- o._cbFfnM1 == this._cbFfnM1
- && o._info == this._info
- && o._wWeight == _wWeight
- && o._chs == _chs
- && o._ixchSzAlt == _ixchSzAlt
- && Arrays.equals(o._panose, _panose)
- && Arrays.equals(o._fontSig, _fontSig)
- && Arrays.equals(o._xszFfn, _xszFfn)
- );
- }
-
-
- @Override
- public int hashCode() {
- assert false : "hashCode not designed";
- return 42; // any arbitrary constant will do
- }
- }
-
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