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The Apache Commons Codec package contains simple encoder and decoders for
various formats such as Base64 and Hexadecimal. In addition to these
widely used encoders and decoders, the codec package also maintains a
collection of phonetic encoding utilities.
/* ====================================================================
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.sprm;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.apache.poi.hwpf.usermodel.ParagraphProperties;
import org.apache.poi.util.Internal;
import org.apache.poi.util.LittleEndian;
@Internal
public final class ParagraphSprmCompressor
{
public ParagraphSprmCompressor()
{
}
public static byte[] compressParagraphProperty(ParagraphProperties newPAP,
ParagraphProperties oldPAP)
{
// page numbers links to Word97-2007BinaryFileFormat(doc)Specification.pdf, accessible from microsoft.com
List sprmList = new ArrayList<>();
int size = 0;
// Page 50 of public specification begins
if (newPAP.getIstd() != oldPAP.getIstd())
{
// sprmPIstd
size += SprmUtils.addSprm((short)0x4600, newPAP.getIstd(), null, sprmList);
}
if (newPAP.getJc() != oldPAP.getJc())
{
// sprmPJc80
size += SprmUtils.addSprm((short)0x2403, newPAP.getJc(), null, sprmList);
}
if (newPAP.getFSideBySide() != oldPAP.getFSideBySide())
{
// sprmPFSideBySide
size += SprmUtils.addSprm((short)0x2404, newPAP.getFSideBySide(), sprmList);
}
if (newPAP.getFKeep() != oldPAP.getFKeep())
{
size += SprmUtils.addSprm((short)0x2405, newPAP.getFKeep(), sprmList);
}
if (newPAP.getFKeepFollow() != oldPAP.getFKeepFollow())
{
size += SprmUtils.addSprm((short)0x2406, newPAP.getFKeepFollow(), sprmList);
}
if (newPAP.getFPageBreakBefore() != oldPAP.getFPageBreakBefore())
{
size += SprmUtils.addSprm((short)0x2407, newPAP.getFPageBreakBefore(), sprmList);
}
if (newPAP.getBrcl() != oldPAP.getBrcl())
{
size += SprmUtils.addSprm((short)0x2408, newPAP.getBrcl(), null, sprmList);
}
if (newPAP.getBrcp() != oldPAP.getBrcp())
{
size += SprmUtils.addSprm((short)0x2409, newPAP.getBrcp(), null, sprmList);
}
if (newPAP.getIlvl() != oldPAP.getIlvl())
{
size += SprmUtils.addSprm((short)0x260A, newPAP.getIlvl(), null, sprmList);
}
if (newPAP.getIlfo() != oldPAP.getIlfo())
{
size += SprmUtils.addSprm((short)0x460b, newPAP.getIlfo(), null, sprmList);
}
if (newPAP.getFNoLnn() != oldPAP.getFNoLnn())
{
size += SprmUtils.addSprm((short)0x240C, newPAP.getFNoLnn(), sprmList);
}
if (newPAP.getItbdMac() != oldPAP.getItbdMac() ||
!Arrays.equals(newPAP.getRgdxaTab(), oldPAP.getRgdxaTab()) ||
!Arrays.equals(newPAP.getRgtbd(), oldPAP.getRgtbd()))
{
/** @todo revisit this */
// byte[] oldTabArray = oldPAP.getRgdxaTab();
// byte[] newTabArray = newPAP.getRgdxaTab();
// byte[] newTabDescriptors = newPAP.getRgtbd();
// byte[] varParam = new byte[2 + oldTabArray.length + newTabArray.length +
// newTabDescriptors.length];
// varParam[0] = (byte)(oldTabArray.length/2);
// int offset = 1;
// System.arraycopy(oldTabArray, 0, varParam, offset, oldTabArray.length);
// offset += oldTabArray.length;
// varParam[offset] = (byte)(newTabArray.length/2);
// offset += 1;
// System.arraycopy(newTabArray, 0, varParam, offset, newTabArray.length);
// offset += newTabArray.length;
// System.arraycopy(newTabDescriptors, 0, varParam, offset, newTabDescriptors.length);
//
// size += SprmUtils.addSprm((short)0xC60D, 0, varParam, sprmList);
}
if (newPAP.getDxaLeft() != oldPAP.getDxaLeft())
{
// sprmPDxaLeft80
size += SprmUtils.addSprm((short)0x840F, newPAP.getDxaLeft(), null, sprmList);
}
// Page 51 of public specification begins
if (newPAP.getDxaLeft1() != oldPAP.getDxaLeft1())
{
// sprmPDxaLeft180
size += SprmUtils.addSprm((short)0x8411, newPAP.getDxaLeft1(), null, sprmList);
}
if (newPAP.getDxaRight() != oldPAP.getDxaRight())
{
// sprmPDxaRight80
size += SprmUtils.addSprm((short)0x840E, newPAP.getDxaRight(), null, sprmList);
}
if (newPAP.getDxcLeft() != oldPAP.getDxcLeft())
{
// sprmPDxcLeft
size += SprmUtils.addSprm((short)0x4456, newPAP.getDxcLeft(), null, sprmList);
}
if (newPAP.getDxcLeft1() != oldPAP.getDxcLeft1())
{
// sprmPDxcLeft1
size += SprmUtils.addSprm((short)0x4457, newPAP.getDxcLeft1(), null, sprmList);
}
if (newPAP.getDxcRight() != oldPAP.getDxcRight())
{
// sprmPDxcRight
size += SprmUtils.addSprm((short)0x4455, newPAP.getDxcRight(), null, sprmList);
}
if (!newPAP.getLspd().equals(oldPAP.getLspd()))
{
// sprmPDyaLine
byte[] buf = new byte[4];
newPAP.getLspd().serialize(buf, 0);
size += SprmUtils.addSprm((short)0x6412, LittleEndian.getInt(buf), null, sprmList);
}
if (newPAP.getDyaBefore() != oldPAP.getDyaBefore())
{
// sprmPDyaBefore
size += SprmUtils.addSprm((short)0xA413, newPAP.getDyaBefore(), null, sprmList);
}
if (newPAP.getDyaAfter() != oldPAP.getDyaAfter())
{
// sprmPDyaAfter
size += SprmUtils.addSprm((short)0xA414, newPAP.getDyaAfter(), null, sprmList);
}
if (newPAP.getFDyaBeforeAuto() != oldPAP.getFDyaBeforeAuto())
{
// sprmPFDyaBeforeAuto
size += SprmUtils.addSprm((short)0x245B, newPAP.getFDyaBeforeAuto(), sprmList);
}
if (newPAP.getFDyaAfterAuto() != oldPAP.getFDyaAfterAuto())
{
// sprmPFDyaAfterAuto
size += SprmUtils.addSprm((short)0x245C, newPAP.getFDyaAfterAuto(), sprmList);
}
if (newPAP.getFInTable() != oldPAP.getFInTable())
{
// sprmPFInTable
size += SprmUtils.addSprm((short)0x2416, newPAP.getFInTable(), sprmList);
}
if (newPAP.getFTtp() != oldPAP.getFTtp())
{
// sprmPFTtp
size += SprmUtils.addSprm((short)0x2417, newPAP.getFTtp(), sprmList);
}
if (newPAP.getDxaAbs() != oldPAP.getDxaAbs())
{
// sprmPDxaAbs
size += SprmUtils.addSprm((short)0x8418, newPAP.getDxaAbs(), null, sprmList);
}
if (newPAP.getDyaAbs() != oldPAP.getDyaAbs())
{
// sprmPDyaAbs
size += SprmUtils.addSprm((short)0x8419, newPAP.getDyaAbs(), null, sprmList);
}
if (newPAP.getDxaWidth() != oldPAP.getDxaWidth())
{
// sprmPDxaWidth
size += SprmUtils.addSprm((short)0x841A, newPAP.getDxaWidth(), null, sprmList);
}
// Page 52 of public specification begins
if (newPAP.getWr() != oldPAP.getWr())
{
size += SprmUtils.addSprm((short)0x2423, newPAP.getWr(), null, sprmList);
}
if (newPAP.getBrcBar().equals(oldPAP.getBrcBar()))
{
// XXX: sprm code 0x6428 is sprmPBrcBetween80, but accessed property linked to sprmPBrcBar80 (0x6629)
int brc = newPAP.getBrcBar().toInt();
size += SprmUtils.addSprm((short)0x6428, brc, null, sprmList);
}
if (!newPAP.getBrcBottom().equals(oldPAP.getBrcBottom()))
{
// sprmPBrcBottom80
int brc = newPAP.getBrcBottom().toInt();
size += SprmUtils.addSprm((short)0x6426, brc, null, sprmList);
}
if (!newPAP.getBrcLeft().equals(oldPAP.getBrcLeft()))
{
// sprmPBrcLeft80
int brc = newPAP.getBrcLeft().toInt();
size += SprmUtils.addSprm((short)0x6425, brc, null, sprmList);
}
// Page 53 of public specification begins
if (!newPAP.getBrcRight().equals(oldPAP.getBrcRight()))
{
// sprmPBrcRight80
int brc = newPAP.getBrcRight().toInt();
size += SprmUtils.addSprm((short)0x6427, brc, null, sprmList);
}
if (!newPAP.getBrcTop().equals(oldPAP.getBrcTop()))
{
// sprmPBrcTop80
int brc = newPAP.getBrcTop().toInt();
size += SprmUtils.addSprm((short)0x6424, brc, null, sprmList);
}
if (newPAP.getFNoAutoHyph() != oldPAP.getFNoAutoHyph())
{
size += SprmUtils.addSprm((short)0x242A, newPAP.getFNoAutoHyph(), sprmList);
}
if (newPAP.getDyaHeight() != oldPAP.getDyaHeight() ||
newPAP.getFMinHeight() != oldPAP.getFMinHeight())
{
// sprmPWHeightAbs
short val = (short)newPAP.getDyaHeight();
if (newPAP.getFMinHeight())
{
val |= 0x8000;
}
size += SprmUtils.addSprm((short)0x442B, val, null, sprmList);
}
if (newPAP.getDcs() != null && !newPAP.getDcs().equals(oldPAP.getDcs()))
{
// sprmPDcs
size += SprmUtils.addSprm((short)0x442C, newPAP.getDcs().toShort(), null, sprmList);
}
if (newPAP.getDyaFromText() != oldPAP.getDyaFromText())
{
// sprmPDyaFromText
size += SprmUtils.addSprm((short)0x842E, newPAP.getDyaFromText(), null, sprmList);
}
if (newPAP.getDxaFromText() != oldPAP.getDxaFromText())
{
// sprmPDxaFromText
size += SprmUtils.addSprm((short)0x842F, newPAP.getDxaFromText(), null, sprmList);
}
if (newPAP.getFLocked() != oldPAP.getFLocked())
{
// sprmPFLocked
size += SprmUtils.addSprm((short)0x2430, newPAP.getFLocked(), sprmList);
}
if (newPAP.getFWidowControl() != oldPAP.getFWidowControl())
{
// sprmPFWidowControl
size += SprmUtils.addSprm((short)0x2431, newPAP.getFWidowControl(), sprmList);
}
if (newPAP.getFKinsoku() != oldPAP.getFKinsoku())
{
size += SprmUtils.addSprm((short)0x2433, newPAP.getDyaBefore(), null, sprmList);
}
if (newPAP.getFWordWrap() != oldPAP.getFWordWrap())
{
size += SprmUtils.addSprm((short)0x2434, newPAP.getFWordWrap(), sprmList);
}
if (newPAP.getFOverflowPunct() != oldPAP.getFOverflowPunct())
{
size += SprmUtils.addSprm((short)0x2435, newPAP.getFOverflowPunct(), sprmList);
}
if (newPAP.getFTopLinePunct() != oldPAP.getFTopLinePunct())
{
size += SprmUtils.addSprm((short)0x2436, newPAP.getFTopLinePunct(), sprmList);
}
if (newPAP.getFAutoSpaceDE() != oldPAP.getFAutoSpaceDE())
{
size += SprmUtils.addSprm((short)0x2437, newPAP.getFAutoSpaceDE(), sprmList);
}
if (newPAP.getFAutoSpaceDN() != oldPAP.getFAutoSpaceDN())
{
size += SprmUtils.addSprm((short)0x2438, newPAP.getFAutoSpaceDN(), sprmList);
}
if (newPAP.getWAlignFont() != oldPAP.getWAlignFont())
{
size += SprmUtils.addSprm((short)0x4439, newPAP.getWAlignFont(), null, sprmList);
}
// Page 54 of public specification begins
if (newPAP.isFBackward() != oldPAP.isFBackward() ||
newPAP.isFVertical() != oldPAP.isFVertical() ||
newPAP.isFRotateFont() != oldPAP.isFRotateFont())
{
int val = 0;
if (newPAP.isFBackward())
{
val |= 0x2;
}
if (newPAP.isFVertical())
{
val |= 0x1;
}
if (newPAP.isFRotateFont())
{
val |= 0x4;
}
size += SprmUtils.addSprm((short)0x443A, val, null, sprmList);
}
if (!Arrays.equals(newPAP.getAnld(), oldPAP.getAnld()))
{
// sprmPAnld80
size += SprmUtils.addSprm((short)0xC63E, 0, newPAP.getAnld(), sprmList);
}
if (newPAP.getFPropRMark() != oldPAP.getFPropRMark() ||
newPAP.getIbstPropRMark() != oldPAP.getIbstPropRMark() ||
!newPAP.getDttmPropRMark().equals(oldPAP.getDttmPropRMark()))
{
// sprmPPropRMark
byte[] buf = new byte[7];
buf[0] = (byte) ( newPAP.getFPropRMark() ? 1 : 0 );
LittleEndian.putShort(buf, 1, (short)newPAP.getIbstPropRMark());
newPAP.getDttmPropRMark().serialize(buf, 3);
size += SprmUtils.addSprm((short)0xC63F, 0, buf, sprmList);
}
if (newPAP.getLvl() != oldPAP.getLvl())
{
// sprmPOutLvl
size += SprmUtils.addSprm((short)0x2640, newPAP.getLvl(), null, sprmList);
}
if (newPAP.getFBiDi() != oldPAP.getFBiDi())
{
// sprmPFBiDi
size += SprmUtils.addSprm((short)0x2441, newPAP.getFBiDi(), sprmList);
}
if (newPAP.getFNumRMIns() != oldPAP.getFNumRMIns())
{
// sprmPFNumRMIns
size += SprmUtils.addSprm((short)0x2443, newPAP.getFNumRMIns(), sprmList);
}
if (!Arrays.equals(newPAP.getNumrm(), oldPAP.getNumrm()))
{
// sprmPNumRM
size += SprmUtils.addSprm((short)0xC645, 0, newPAP.getNumrm(), sprmList);
}
if (newPAP.getFInnerTableCell() != oldPAP.getFInnerTableCell())
{
// sprmPFInnerTableCell
size += SprmUtils.addSprm((short)0x244b, newPAP.getFInnerTableCell(), sprmList);
}
if (newPAP.getFTtpEmbedded() != oldPAP.getFTtpEmbedded())
{
// sprmPFInnerTtp
size += SprmUtils.addSprm((short)0x244c, newPAP.getFTtpEmbedded(), sprmList);
}
if (newPAP.getShd() != null && !newPAP.getShd().equals(oldPAP.getShd()))
{
// size += SprmUtils.addSprm((short)0x442D, newPAP.getShd().toShort(), null, sprmList);
// sprmPShd -- 0xc64d
size += SprmUtils.addSprm( (short) 0xc64d, 0, newPAP.getShd().serialize(), sprmList );
}
// Page 55 of public specification begins
if (newPAP.getItap() != oldPAP.getItap())
{
// sprmPItap
size += SprmUtils.addSprm((short)0x6649, newPAP.getItap(), null, sprmList);
}
if ( newPAP.getRsid() != oldPAP.getRsid() )
{
// sprmPRsid
byte[] value = new byte[4];
LittleEndian.putUInt( value, 0, newPAP.getRsid() );
size += SprmUtils.addSprm( (short) 0x6467, 0, value, sprmList );
}
return SprmUtils.getGrpprl(sprmList, size);
}
}