| /* ==================================================================== |
| 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.util.BitField; |
| import org.apache.poi.util.BitFieldFactory; |
| import org.apache.poi.util.Internal; |
| import org.apache.poi.util.LittleEndian; |
| |
| /** |
| * 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 |
| * |
| * @author Praveen Mathew |
| */ |
| @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 += LittleEndian.BYTE_SIZE; |
| _info = buf[offset]; |
| offset += LittleEndian.BYTE_SIZE; |
| _wWeight = LittleEndian.getShort(buf, offset); |
| offset += LittleEndian.SHORT_SIZE; |
| _chs = buf[offset]; |
| offset += LittleEndian.BYTE_SIZE; |
| _ixchSzAlt = buf[offset]; |
| offset += LittleEndian.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; |
| _xszFfn = new char[_xszFfnLength]; |
| |
| for(int i = 0; i < _xszFfnLength; i++) |
| { |
| _xszFfn[i] = (char)LittleEndian.getShort(buf, offset); |
| offset += LittleEndian.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 = new byte[this.getSize()]; |
| |
| buf[offset] = (byte)_cbFfnM1; |
| offset += LittleEndian.BYTE_SIZE; |
| buf[offset] = _info; |
| offset += LittleEndian.BYTE_SIZE; |
| LittleEndian.putShort(buf, offset, _wWeight); |
| offset += LittleEndian.SHORT_SIZE; |
| buf[offset] = _chs; |
| offset += LittleEndian.BYTE_SIZE; |
| buf[offset] = _ixchSzAlt; |
| offset += LittleEndian.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 += LittleEndian.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 |
| } |
| } |
| |
| |