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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#include "xistring.hxx"
#include "xlstyle.hxx"
#include "xistream.hxx"
#include "xiroot.hxx"
// Byte/Unicode strings =======================================================
/** All allowed flags for import. */
const XclStrFlags nAllowedFlags = EXC_STR_8BITLENGTH | EXC_STR_SMARTFLAGS | EXC_STR_SEPARATEFORMATS;
XclImpString::XclImpString()
{
}
XclImpString::XclImpString( const OUString& rString ) :
maString( rString )
{
}
XclImpString::~XclImpString()
{
}
void XclImpString::Read( XclImpStream& rStrm, XclStrFlags nFlags )
{
if( !::get_flag( nFlags, EXC_STR_SEPARATEFORMATS ) )
maFormats.clear();
SAL_WARN_IF(
(nFlags & ~nAllowedFlags) != 0, "sc.filter",
"XclImpString::Read - unknown flag");
bool b16BitLen = !::get_flag( nFlags, EXC_STR_8BITLENGTH );
switch( rStrm.GetRoot().GetBiff() )
{
case EXC_BIFF2:
case EXC_BIFF3:
case EXC_BIFF4:
case EXC_BIFF5:
// no integrated formatting in BIFF2-BIFF7
maString = rStrm.ReadByteString( b16BitLen );
break;
case EXC_BIFF8:
{
// --- string header ---
sal_uInt16 nChars = b16BitLen ? rStrm.ReaduInt16() : rStrm.ReaduInt8();
sal_uInt8 nFlagField = 0;
if( nChars || !::get_flag( nFlags, EXC_STR_SMARTFLAGS ) )
nFlagField = rStrm.ReaduInt8();
bool b16Bit, bRich, bFarEast;
sal_uInt16 nRunCount;
sal_uInt32 nExtInf;
rStrm.ReadUniStringExtHeader( b16Bit, bRich, bFarEast, nRunCount, nExtInf, nFlagField );
// ignore the flags, they may be wrong
// --- character array ---
maString = rStrm.ReadRawUniString( nChars, b16Bit );
// --- formatting ---
if( nRunCount > 0 )
ReadFormats( rStrm, nRunCount );
// --- extended (FarEast) information ---
rStrm.Ignore( nExtInf );
}
break;
default:
DBG_ERROR_BIFF();
}
}
void XclImpString::AppendFormat( XclFormatRunVec& rFormats, sal_uInt16 nChar, sal_uInt16 nFontIdx )
{
// #i33341# real life -- same character index may occur several times
OSL_ENSURE( rFormats.empty() || (rFormats.back().mnChar <= nChar), "XclImpString::AppendFormat - wrong char order" );
if( rFormats.empty() || (rFormats.back().mnChar < nChar) )
rFormats.push_back( XclFormatRun( nChar, nFontIdx ) );
else
rFormats.back().mnFontIdx = nFontIdx;
}
void XclImpString::ReadFormats( XclImpStream& rStrm, XclFormatRunVec& rFormats )
{
bool bBiff8 = rStrm.GetRoot().GetBiff() == EXC_BIFF8;
sal_uInt16 nRunCount = bBiff8 ? rStrm.ReaduInt16() : rStrm.ReaduInt8();
ReadFormats( rStrm, rFormats, nRunCount );
}
void XclImpString::ReadFormats( XclImpStream& rStrm, XclFormatRunVec& rFormats, sal_uInt16 nRunCount )
{
rFormats.clear();
rFormats.reserve( nRunCount );
/* #i33341# real life -- same character index may occur several times
-> use AppendFormat() to validate formats */
if( rStrm.GetRoot().GetBiff() == EXC_BIFF8 )
{
for( sal_uInt16 nIdx = 0; nIdx < nRunCount; ++nIdx )
{
sal_uInt16 nChar = rStrm.ReaduInt16();
sal_uInt16 nFontIdx = rStrm.ReaduInt16();
AppendFormat( rFormats, nChar, nFontIdx );
}
}
else
{
for( sal_uInt16 nIdx = 0; nIdx < nRunCount; ++nIdx )
{
sal_uInt8 nChar = rStrm.ReaduInt8();
sal_uInt8 nFontIdx = rStrm.ReaduInt8();
AppendFormat( rFormats, nChar, nFontIdx );
}
}
}
void XclImpString::ReadObjFormats( XclImpStream& rStrm, XclFormatRunVec& rFormats, sal_uInt16 nFormatSize )
{
// number of formatting runs, each takes 8 bytes
sal_uInt16 nRunCount = nFormatSize / 8;
rFormats.clear();
rFormats.reserve( nRunCount );
for( sal_uInt16 nIdx = 0; nIdx < nRunCount; ++nIdx )
{
sal_uInt16 nChar = rStrm.ReaduInt16();
sal_uInt16 nFontIdx = rStrm.ReaduInt16();
rStrm.Ignore( 4 );
AppendFormat( rFormats, nChar, nFontIdx );
}
}
// String iterator ============================================================
XclImpStringIterator::XclImpStringIterator( const XclImpString& rString ) :
mrText( rString.GetText() ),
mrFormats( rString.GetFormats() ),
mnPortion( 0 ),
mnTextBeg( 0 ),
mnTextEnd( 0 ),
mnFormatsBeg( 0 ),
mnFormatsEnd( 0 )
{
// first portion is formatted, adjust vector index to next portion
if( !mrFormats.empty() && (mrFormats.front().mnChar == 0) )
++mnFormatsEnd;
// find end position of the first portion
mnTextEnd = (mnFormatsEnd < mrFormats.size() ?
mrFormats[ mnFormatsEnd ].mnChar : mrText.getLength() );
}
OUString XclImpStringIterator::GetPortionText() const
{
return mrText.copy( mnTextBeg, mnTextEnd - mnTextBeg );
}
sal_uInt16 XclImpStringIterator::GetPortionFont() const
{
return (mnFormatsBeg < mnFormatsEnd) ? mrFormats[ mnFormatsBeg ].mnFontIdx : EXC_FONT_NOTFOUND;
}
XclImpStringIterator& XclImpStringIterator::operator++()
{
if( Is() )
{
++mnPortion;
do
{
// indexes into vector of formatting runs
if( mnFormatsBeg < mnFormatsEnd )
++mnFormatsBeg;
if( mnFormatsEnd < mrFormats.size() )
++mnFormatsEnd;
// character positions of next portion
mnTextBeg = mnTextEnd;
mnTextEnd = (mnFormatsEnd < mrFormats.size()) ?
mrFormats[ mnFormatsEnd ].mnChar : mrText.getLength();
}
while( Is() && (mnTextBeg == mnTextEnd) );
}
return *this;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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