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Diffstat (limited to 'oox/source/helper/attributelist.cxx')
| -rw-r--r-- | oox/source/helper/attributelist.cxx | 361 |
1 files changed, 361 insertions, 0 deletions
diff --git a/oox/source/helper/attributelist.cxx b/oox/source/helper/attributelist.cxx new file mode 100644 index 000000000..c247fdb43 --- /dev/null +++ b/oox/source/helper/attributelist.cxx @@ -0,0 +1,361 @@ +/* -*- 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 <oox/helper/attributelist.hxx> + +#include <osl/diagnose.h> +#include <rtl/ustrbuf.hxx> +#include <sax/fastattribs.hxx> +#include <oox/token/tokenmap.hxx> +#include <o3tl/string_view.hxx> + +namespace oox { + +using namespace ::com::sun::star; +using namespace ::com::sun::star::uno; +using namespace ::com::sun::star::xml::sax; + +namespace { + +const sal_Int32 XSTRING_ENCCHAR_LEN = 7; + +bool lclAddHexDigit( sal_Unicode& orcChar, sal_Unicode cDigit, int nBitShift ) +{ + if( ('0' <= cDigit) && (cDigit <= '9') ) { orcChar |= ((cDigit - '0') << nBitShift); return true; } + if( ('a' <= cDigit) && (cDigit <= 'f') ) { orcChar |= ((cDigit - 'a' + 10) << nBitShift); return true; } + if( ('A' <= cDigit) && (cDigit <= 'F') ) { orcChar |= ((cDigit - 'A' + 10) << nBitShift); return true; } + return false; +} + +sal_Unicode lclGetXChar( const sal_Unicode*& rpcStr, const sal_Unicode* pcEnd ) +{ + sal_Unicode cChar = 0; + if( (pcEnd - rpcStr >= XSTRING_ENCCHAR_LEN) && + (rpcStr[ 0 ] == '_') && + (rpcStr[ 1 ] == 'x') && + (rpcStr[ 6 ] == '_') && + lclAddHexDigit( cChar, rpcStr[ 2 ], 12 ) && + lclAddHexDigit( cChar, rpcStr[ 3 ], 8 ) && + lclAddHexDigit( cChar, rpcStr[ 4 ], 4 ) && + lclAddHexDigit( cChar, rpcStr[ 5 ], 0 ) ) + { + rpcStr += XSTRING_ENCCHAR_LEN; + return cChar; + } + return *rpcStr++; +} + +} // namespace + +#define STRING_TO_TOKEN(color) if (sColorName == u"" #color) return XML_##color +sal_Int32 getHighlightColorTokenFromString(std::u16string_view sColorName) +{ + STRING_TO_TOKEN(black); + STRING_TO_TOKEN(blue); + STRING_TO_TOKEN(cyan); + STRING_TO_TOKEN(darkBlue); + STRING_TO_TOKEN(darkCyan); + STRING_TO_TOKEN(darkGreen); + STRING_TO_TOKEN(darkMagenta); + STRING_TO_TOKEN(darkRed); + STRING_TO_TOKEN(darkYellow); + STRING_TO_TOKEN(darkGray); + STRING_TO_TOKEN(green); + STRING_TO_TOKEN(lightGray); + STRING_TO_TOKEN(magenta); + STRING_TO_TOKEN(red); + STRING_TO_TOKEN(white); + STRING_TO_TOKEN(yellow); + STRING_TO_TOKEN(none); + + return XML_TOKEN_INVALID; +} + +sal_Int32 AttributeConversion::decodeToken( std::u16string_view rValue ) +{ + return TokenMap::getTokenFromUnicode( rValue ); +} + +OUString AttributeConversion::decodeXString( const OUString& rValue ) +{ + // string shorter than one encoded character - no need to decode + if( rValue.getLength() < XSTRING_ENCCHAR_LEN ) + return rValue; + OUStringBuffer aBuffer; + const sal_Unicode* pcStr = rValue.getStr(); + const sal_Unicode* pcEnd = pcStr + rValue.getLength(); + while( pcStr < pcEnd ) + aBuffer.append( lclGetXChar( pcStr, pcEnd ) ); + return aBuffer.makeStringAndClear(); +} + +sal_Int32 AttributeConversion::decodeInteger( std::u16string_view rValue ) +{ + return o3tl::toInt32(rValue); +} + +sal_uInt32 AttributeConversion::decodeUnsigned( std::u16string_view rValue ) +{ + return getLimitedValue< sal_uInt32, sal_Int64 >( o3tl::toInt64(rValue), 0, SAL_MAX_UINT32 ); +} + +sal_Int64 AttributeConversion::decodeHyper( std::u16string_view rValue ) +{ + return o3tl::toInt64(rValue); +} + +sal_Int32 AttributeConversion::decodeIntegerHex( std::u16string_view rValue ) +{ + // It looks like all Office Open XML attributes containing hexadecimal + // values are based on xsd:hexBinary and so use an unsigned representation: + return static_cast< sal_Int32 >(o3tl::toUInt32(rValue, 16)); + //TODO: Change this function to return sal_uInt32 and get rid of the + // cast, but that will have a ripple effect +} + +AttributeList::AttributeList( const Reference< XFastAttributeList >& rxAttribs ) : + mxAttribs( rxAttribs ), + mpAttribList( nullptr ) +{ + OSL_ENSURE( mxAttribs.is(), "AttributeList::AttributeList - missing attribute list interface" ); +} + +sax_fastparser::FastAttributeList *AttributeList::getAttribList() const +{ + if( mpAttribList == nullptr ) + { + mpAttribList = &sax_fastparser::castToFastAttributeList( mxAttribs ); + } + return mpAttribList; +} + +bool AttributeList::hasAttribute( sal_Int32 nAttrToken ) const +{ + return mxAttribs->hasAttribute( nAttrToken ); +} + +oox::drawingml::Color AttributeList::getHighlightColor(sal_Int32 nAttrToken) const +{ + OUString sColorVal = mxAttribs->getValue(nAttrToken); + oox::drawingml::Color aColor; + aColor.setHighlight(getHighlightColorTokenFromString(sColorVal)); + return aColor; +} + +// optional return values ----------------------------------------------------- + +OptValue< sal_Int32 > AttributeList::getToken( sal_Int32 nAttrToken ) const +{ + sal_Int32 nToken = mxAttribs->getOptionalValueToken( nAttrToken, XML_TOKEN_INVALID ); + return OptValue< sal_Int32 >( nToken != XML_TOKEN_INVALID, nToken ); +} + +OptValue< OUString > AttributeList::getString( sal_Int32 nAttrToken ) const +{ + // check if the attribute exists (empty string may be different to missing attribute) + if( mxAttribs->hasAttribute( nAttrToken ) ) + return OptValue< OUString >( mxAttribs->getOptionalValue( nAttrToken ) ); + return OptValue< OUString >(); +} + +OptValue< OUString > AttributeList::getXString( sal_Int32 nAttrToken ) const +{ + // check if the attribute exists (empty string may be different to missing attribute) + if( mxAttribs->hasAttribute( nAttrToken ) ) + return OptValue< OUString >( AttributeConversion::decodeXString( mxAttribs->getOptionalValue( nAttrToken ) ) ); + return OptValue< OUString >(); +} + +OptValue< double > AttributeList::getDouble( sal_Int32 nAttrToken ) const +{ + double nValue; + bool bValid = getAttribList()->getAsDouble( nAttrToken, nValue ); + return OptValue< double >( bValid, nValue ); +} + +OptValue< sal_Int32 > AttributeList::getInteger( sal_Int32 nAttrToken ) const +{ + sal_Int32 nValue; + bool bValid = getAttribList()->getAsInteger( nAttrToken, nValue ); + return OptValue< sal_Int32 >( bValid, nValue ); +} + +OptValue< sal_uInt32 > AttributeList::getUnsigned( sal_Int32 nAttrToken ) const +{ + OUString aValue = mxAttribs->getOptionalValue( nAttrToken ); + bool bValid = !aValue.isEmpty(); + return OptValue< sal_uInt32 >( bValid, AttributeConversion::decodeUnsigned( aValue ) ); +} + +OptValue< sal_Int64 > AttributeList::getHyper( sal_Int32 nAttrToken ) const +{ + OUString aValue = mxAttribs->getOptionalValue( nAttrToken ); + bool bValid = !aValue.isEmpty(); + return OptValue< sal_Int64 >( bValid, bValid ? AttributeConversion::decodeHyper( aValue ) : 0 ); +} + +OptValue< sal_Int32 > AttributeList::getIntegerHex( sal_Int32 nAttrToken ) const +{ + OUString aValue = mxAttribs->getOptionalValue( nAttrToken ); + bool bValid = !aValue.isEmpty(); + return OptValue< sal_Int32 >( bValid, bValid ? AttributeConversion::decodeIntegerHex( aValue ) : 0 ); +} + +OptValue< bool > AttributeList::getBool( sal_Int32 nAttrToken ) const +{ + const char *pAttr; + + // catch the common cases as quickly as possible first + bool bHasAttr = getAttribList()->getAsChar( nAttrToken, pAttr ); + if( !bHasAttr ) + return OptValue< bool >(); + if( !strcmp( pAttr, "false" ) ) + return OptValue< bool >( false ); + if( !strcmp( pAttr, "true" ) ) + return OptValue< bool >( true ); + + // now for all the crazy stuff + + // boolean attributes may be "t", "f", "true", "false", "on", "off", "1", or "0" + switch( getToken( nAttrToken, XML_TOKEN_INVALID ) ) + { + case XML_t: return OptValue< bool >( true ); // used in VML + case XML_true: return OptValue< bool >( true ); + case XML_on: return OptValue< bool >( true ); + case XML_f: return OptValue< bool >( false ); // used in VML + case XML_false: return OptValue< bool >( false ); + case XML_off: return OptValue< bool >( false ); + } + OptValue< sal_Int32 > onValue = getInteger( nAttrToken ); + return OptValue< bool >( onValue.has(), onValue.get() != 0 ); +} + +OptValue< util::DateTime > AttributeList::getDateTime( sal_Int32 nAttrToken ) const +{ + OUString aValue = mxAttribs->getOptionalValue( nAttrToken ); + util::DateTime aDateTime; + bool bValid = (aValue.getLength() == 19 || (aValue.getLength() == 20 && aValue[19] == 'Z')) && + (aValue[ 4 ] == '-') && (aValue[ 7 ] == '-') && (aValue[ 10 ] == 'T') && + (aValue[ 13 ] == ':') && (aValue[ 16 ] == ':'); + if( bValid ) + { + aDateTime.Year = static_cast< sal_uInt16 >( o3tl::toInt32(aValue.subView( 0, 4 )) ); + aDateTime.Month = static_cast< sal_uInt16 >( o3tl::toInt32(aValue.subView( 5, 2 )) ); + aDateTime.Day = static_cast< sal_uInt16 >( o3tl::toInt32(aValue.subView( 8, 2 )) ); + aDateTime.Hours = static_cast< sal_uInt16 >( o3tl::toInt32(aValue.subView( 11, 2 )) ); + aDateTime.Minutes = static_cast< sal_uInt16 >( o3tl::toInt32(aValue.subView( 14, 2 )) ); + aDateTime.Seconds = static_cast< sal_uInt16 >( o3tl::toInt32(aValue.subView( 17, 2 )) ); + } + return OptValue< util::DateTime >( bValid, aDateTime ); +} + +// defaulted return values ---------------------------------------------------- + +sal_Int32 AttributeList::getToken( sal_Int32 nAttrToken, sal_Int32 nDefault ) const +{ + return mxAttribs->getOptionalValueToken( nAttrToken, nDefault ); +} + +OUString AttributeList::getString( sal_Int32 nAttrToken, const OUString& rDefault ) const +{ + // try to avoid slow exception throw/catch if we can + if (rDefault.isEmpty()) + return mxAttribs->getOptionalValue( nAttrToken ); + + try + { + return mxAttribs->getValue( nAttrToken ); + } + catch( Exception& ) + { + } + return rDefault; +} + +OUString AttributeList::getXString( sal_Int32 nAttrToken, const OUString& rDefault ) const +{ + return getXString( nAttrToken ).get( rDefault ); +} + +const char* AttributeList::getChar( sal_Int32 nAttrToken ) const +{ + const char* p = nullptr; + bool bValid = getAttribList()->getAsChar(nAttrToken, p); + if (!bValid) + p = nullptr; + + return p; +} + +double AttributeList::getDouble( sal_Int32 nAttrToken, double fDefault ) const +{ + return getDouble( nAttrToken ).get( fDefault ); +} + +sal_Int32 AttributeList::getInteger( sal_Int32 nAttrToken, sal_Int32 nDefault ) const +{ + return getInteger( nAttrToken ).get( nDefault ); +} + +sal_uInt32 AttributeList::getUnsigned( sal_Int32 nAttrToken, sal_uInt32 nDefault ) const +{ + return getUnsigned( nAttrToken ).get( nDefault ); +} + +sal_Int64 AttributeList::getHyper( sal_Int32 nAttrToken, sal_Int64 nDefault ) const +{ + return getHyper( nAttrToken ).get( nDefault ); +} + +sal_Int32 AttributeList::getIntegerHex( sal_Int32 nAttrToken, sal_Int32 nDefault ) const +{ + return getIntegerHex( nAttrToken ).get( nDefault ); +} + +sal_uInt32 AttributeList::getUnsignedHex( sal_Int32 nAttrToken, sal_uInt32 nDefault ) const +{ + return getIntegerHex( nAttrToken ).get( nDefault ); +} + +bool AttributeList::getBool( sal_Int32 nAttrToken, bool bDefault ) const +{ + return getBool( nAttrToken ).get( bDefault ); +} + +util::DateTime AttributeList::getDateTime( sal_Int32 nAttrToken, const util::DateTime& rDefault ) const +{ + return getDateTime( nAttrToken ).get( rDefault ); +} + +std::vector<sal_Int32> AttributeList::getTokenList(sal_Int32 nAttrToken) const +{ + std::vector<sal_Int32> aValues; + OUString sValue = getString(nAttrToken, ""); + sal_Int32 nIndex = 0; + do + { + aValues.push_back(AttributeConversion::decodeToken(o3tl::getToken(sValue, 0, ' ', nIndex))); + } while (nIndex >= 0); + + return aValues; +} + +} // namespace oox + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |