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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#include "oox/ole/axbinaryreader.hxx"
+#include "oox/ole/olehelper.hxx"
+
+using ::rtl::OUString;
+
+namespace oox {
+namespace ole {
+
+// ============================================================================
+
+namespace {
+
+const sal_uInt32 AX_STRING_SIZEMASK = 0x7FFFFFFF;
+const sal_uInt32 AX_STRING_COMPRESSED = 0x80000000;
+
+} // namespace
+
+// ============================================================================
+
+AxAlignedInputStream::AxAlignedInputStream( BinaryInputStream& rInStrm ) :
+ mrInStrm( rInStrm ),
+ mnStrmPos( 0 )
+{
+}
+
+sal_Int64 AxAlignedInputStream::tell() const
+{
+ return mnStrmPos;
+}
+
+void AxAlignedInputStream::seek( sal_Int64 nPos )
+{
+ mbEof = mbEof || (nPos < mnStrmPos);
+ if( !mbEof )
+ skip( static_cast< sal_Int32 >( nPos - mnStrmPos ) );
+}
+
+sal_Int32 AxAlignedInputStream::readData( StreamDataSequence& orData, sal_Int32 nBytes )
+{
+ sal_Int32 nReadSize = mrInStrm.readData( orData, nBytes );
+ mnStrmPos += nReadSize;
+ return nReadSize;
+}
+
+sal_Int32 AxAlignedInputStream::readMemory( void* opMem, sal_Int32 nBytes )
+{
+ sal_Int32 nReadSize = mrInStrm.readMemory( opMem, nBytes );
+ mnStrmPos += nReadSize;
+ return nReadSize;
+}
+
+void AxAlignedInputStream::skip( sal_Int32 nBytes )
+{
+ mrInStrm.skip( nBytes );
+ mnStrmPos += nBytes;
+}
+
+void AxAlignedInputStream::align( size_t nSize )
+{
+ skip( static_cast< sal_Int32 >( (nSize - (mnStrmPos % nSize)) % nSize ) );
+}
+
+// ============================================================================
+
+AxFontData::AxFontData() :
+ mnFontEffects( 0 ),
+ mnFontHeight( 160 ),
+ mnFontCharSet( WINDOWS_CHARSET_DEFAULT ),
+ mnHorAlign( AX_FONTDATA_LEFT )
+{
+}
+
+sal_Int16 AxFontData::getHeightPoints() const
+{
+ /* MSO uses weird font sizes:
+ 1pt->30, 2pt->45, 3pt->60, 4pt->75, 5pt->105, 6pt->120, 7pt->135,
+ 8pt->165, 9pt->180, 10pt->195, 11pt->225, ... */
+ return getLimitedValue< sal_Int16, sal_Int32 >( (mnFontHeight + 10) / 20, 1, SAL_MAX_INT16 );
+}
+
+void AxFontData::setHeightPoints( sal_Int16 nPoints )
+{
+ mnFontHeight = getLimitedValue< sal_Int32, sal_Int32 >( ((nPoints * 4 + 1) / 3) * 15, 30, 4294967 );
+}
+
+bool AxFontData::importBinaryModel( BinaryInputStream& rInStrm )
+{
+ AxBinaryPropertyReader aReader( rInStrm );
+ aReader.readStringProperty( maFontName );
+ aReader.readIntProperty< sal_uInt32 >( mnFontEffects );
+ aReader.readIntProperty< sal_Int32 >( mnFontHeight );
+ aReader.skipIntProperty< sal_Int32 >(); // font offset
+ aReader.readIntProperty< sal_uInt8 >( mnFontCharSet );
+ aReader.skipIntProperty< sal_uInt8 >(); // font pitch/family
+ aReader.readIntProperty< sal_uInt8 >( mnHorAlign );
+ aReader.skipIntProperty< sal_uInt16 >(); // font weight
+ return aReader.finalizeImport();
+}
+
+bool AxFontData::importStdFont( BinaryInputStream& rInStrm )
+{
+ StdFontInfo aFontInfo;
+ if( OleHelper::importStdFont( aFontInfo, rInStrm, false ) )
+ {
+ maFontName = aFontInfo.maName;
+ mnFontEffects = 0;
+ setFlag( mnFontEffects, AX_FONTDATA_BOLD, aFontInfo.mnWeight >= OLE_STDFONT_BOLD );
+ setFlag( mnFontEffects, AX_FONTDATA_ITALIC, getFlag( aFontInfo.mnFlags, OLE_STDFONT_ITALIC ) );
+ setFlag( mnFontEffects, AX_FONTDATA_UNDERLINE, getFlag( aFontInfo.mnFlags, OLE_STDFONT_UNDERLINE ) );
+ setFlag( mnFontEffects, AX_FONTDATA_STRIKEOUT, getFlag( aFontInfo.mnFlags,OLE_STDFONT_STRIKE ) );
+ // StdFont stores font height in 1/10,000 of points
+ setHeightPoints( getLimitedValue< sal_Int16, sal_Int32 >( aFontInfo.mnHeight / 10000, 0, SAL_MAX_INT16 ) );
+ mnFontCharSet = aFontInfo.mnCharSet;
+ mnHorAlign = AX_FONTDATA_LEFT;
+ return true;
+ }
+ return false;
+}
+
+bool AxFontData::importGuidAndFont( BinaryInputStream& rInStrm )
+{
+ OUString aGuid = OleHelper::importGuid( rInStrm );
+ if( aGuid.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM( "{AFC20920-DA4E-11CE-B943-00AA006887B4}" ) ) )
+ return importBinaryModel( rInStrm );
+ if( aGuid.equalsAscii( OLE_GUID_STDFONT ) )
+ return importStdFont( rInStrm );
+ return false;
+}
+
+// ============================================================================
+
+namespace {
+
+bool lclReadString( AxAlignedInputStream& rInStrm, OUString& rValue, sal_uInt32 nSize, bool bArrayString )
+{
+ bool bCompressed = getFlag( nSize, AX_STRING_COMPRESSED );
+ sal_uInt32 nBufSize = nSize & AX_STRING_SIZEMASK;
+ // Unicode: simple strings store byte count, array strings store char count
+ sal_Int32 nChars = static_cast< sal_Int32 >( nBufSize / ((bCompressed || bArrayString) ? 1 : 2) );
+ bool bValidChars = nChars <= 65536;
+ OSL_ENSURE( bValidChars, "lclReadString - string too long" );
+ sal_Int64 nEndPos = rInStrm.tell() + nChars * (bCompressed ? 1 : 2);
+ nChars = ::std::min< sal_Int32 >( nChars, 65536 );
+ rValue = bCompressed ?
+ // ISO-8859-1 maps all byte values xx to the same Unicode code point U+00xx
+ rInStrm.readCharArrayUC( nChars, RTL_TEXTENCODING_ISO_8859_1 ) :
+ rInStrm.readUnicodeArray( nChars );
+ rInStrm.seek( nEndPos );
+ return bValidChars;
+}
+
+} // namespace
+
+// ----------------------------------------------------------------------------
+
+AxBinaryPropertyReader::ComplexProperty::~ComplexProperty()
+{
+}
+
+bool AxBinaryPropertyReader::PairProperty::readProperty( AxAlignedInputStream& rInStrm )
+{
+ rInStrm >> mrPairData.first >> mrPairData.second;
+ return true;
+}
+
+bool AxBinaryPropertyReader::StringProperty::readProperty( AxAlignedInputStream& rInStrm )
+{
+ return lclReadString( rInStrm, mrValue, mnSize, false );
+}
+
+bool AxBinaryPropertyReader::StringArrayProperty::readProperty( AxAlignedInputStream& rInStrm )
+{
+ sal_Int64 nEndPos = rInStrm.tell() + mnSize;
+ while( rInStrm.tell() < nEndPos )
+ {
+ OUString aString;
+ if( !lclReadString( rInStrm, aString, rInStrm.readuInt32(), true ) )
+ return false;
+ mrArray.push_back( aString );
+ // every array string is aligned on 4 byte boundries
+ rInStrm.align( 4 );
+ }
+ return true;
+}
+
+bool AxBinaryPropertyReader::GuidProperty::readProperty( AxAlignedInputStream& rInStrm )
+{
+ mrGuid = OleHelper::importGuid( rInStrm );
+ return true;
+}
+
+bool AxBinaryPropertyReader::FontProperty::readProperty( AxAlignedInputStream& rInStrm )
+{
+ return mrFontData.importGuidAndFont( rInStrm );
+}
+
+bool AxBinaryPropertyReader::PictureProperty::readProperty( AxAlignedInputStream& rInStrm )
+{
+ return OleHelper::importStdPic( mrPicData, rInStrm, true );
+}
+
+// ----------------------------------------------------------------------------
+
+AxBinaryPropertyReader::AxBinaryPropertyReader( BinaryInputStream& rInStrm, bool b64BitPropFlags ) :
+ maInStrm( rInStrm ),
+ mbValid( true )
+{
+ // version and size of property block
+ maInStrm.skip( 2 );
+ sal_uInt16 nBlockSize = maInStrm.readValue< sal_uInt16 >();
+ mnPropsEnd = maInStrm.tell() + nBlockSize;
+ // flagfield containing existing properties
+ if( b64BitPropFlags )
+ maInStrm >> mnPropFlags;
+ else
+ mnPropFlags = maInStrm.readuInt32();
+ mnNextProp = 1;
+}
+
+void AxBinaryPropertyReader::readBoolProperty( bool& orbValue, bool bReverse )
+{
+ // there is no data, the boolean value is equivalent to the property flag itself
+ orbValue = startNextProperty() != bReverse;
+}
+
+void AxBinaryPropertyReader::readPairProperty( AxPairData& orPairData )
+{
+ if( startNextProperty() )
+ maLargeProps.push_back( ComplexPropVector::value_type( new PairProperty( orPairData ) ) );
+}
+
+void AxBinaryPropertyReader::readStringProperty( OUString& orValue )
+{
+ if( startNextProperty() )
+ {
+ sal_uInt32 nSize = maInStrm.readAligned< sal_uInt32 >();
+ maLargeProps.push_back( ComplexPropVector::value_type( new StringProperty( orValue, nSize ) ) );
+ }
+}
+
+void AxBinaryPropertyReader::readStringArrayProperty( AxStringArray& orArray )
+{
+ if( startNextProperty() )
+ {
+ sal_uInt32 nSize = maInStrm.readAligned< sal_uInt32 >();
+ maLargeProps.push_back( ComplexPropVector::value_type( new StringArrayProperty( orArray, nSize ) ) );
+ }
+}
+
+void AxBinaryPropertyReader::readGuidProperty( ::rtl::OUString& orGuid )
+{
+ if( startNextProperty() )
+ maLargeProps.push_back( ComplexPropVector::value_type( new GuidProperty( orGuid ) ) );
+}
+
+void AxBinaryPropertyReader::readFontProperty( AxFontData& orFontData )
+{
+ if( startNextProperty() )
+ {
+ sal_Int16 nData = maInStrm.readAligned< sal_Int16 >();
+ if( ensureValid( nData == -1 ) )
+ maStreamProps.push_back( ComplexPropVector::value_type( new FontProperty( orFontData ) ) );
+ }
+}
+
+void AxBinaryPropertyReader::readPictureProperty( StreamDataSequence& orPicData )
+{
+ if( startNextProperty() )
+ {
+ sal_Int16 nData = maInStrm.readAligned< sal_Int16 >();
+ if( ensureValid( nData == -1 ) )
+ maStreamProps.push_back( ComplexPropVector::value_type( new PictureProperty( orPicData ) ) );
+ }
+}
+
+bool AxBinaryPropertyReader::finalizeImport()
+{
+ // read large properties
+ maInStrm.align( 4 );
+ if( ensureValid( mnPropFlags == 0 ) && !maLargeProps.empty() )
+ {
+ for( ComplexPropVector::iterator aIt = maLargeProps.begin(), aEnd = maLargeProps.end(); ensureValid() && (aIt != aEnd); ++aIt )
+ {
+ ensureValid( (*aIt)->readProperty( maInStrm ) );
+ maInStrm.align( 4 );
+ }
+ }
+ maInStrm.seek( mnPropsEnd );
+
+ // read stream properties (no stream alignment between properties!)
+ if( ensureValid() && !maStreamProps.empty() )
+ for( ComplexPropVector::iterator aIt = maStreamProps.begin(), aEnd = maStreamProps.end(); ensureValid() && (aIt != aEnd); ++aIt )
+ ensureValid( (*aIt)->readProperty( maInStrm ) );
+
+ return mbValid;
+}
+
+bool AxBinaryPropertyReader::ensureValid( bool bCondition )
+{
+ mbValid = mbValid && bCondition && !maInStrm.isEof();
+ return mbValid;
+}
+
+bool AxBinaryPropertyReader::startNextProperty()
+{
+ bool bHasProp = getFlag( mnPropFlags, mnNextProp );
+ setFlag( mnPropFlags, mnNextProp, false );
+ mnNextProp <<= 1;
+ return ensureValid() && bHasProp;
+}
+
+// ============================================================================
+
+} // namespace ole
+} // namespace oox
+