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Diffstat (limited to 'unotools/source/i18n/transliterationwrapper.cxx')
| -rw-r--r-- | unotools/source/i18n/transliterationwrapper.cxx | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/unotools/source/i18n/transliterationwrapper.cxx b/unotools/source/i18n/transliterationwrapper.cxx new file mode 100644 index 000000000..904ec82dc --- /dev/null +++ b/unotools/source/i18n/transliterationwrapper.cxx @@ -0,0 +1,231 @@ +/* -*- 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 <sal/config.h> + +#include <unotools/transliterationwrapper.hxx> +#include <i18nlangtag/languagetag.hxx> +#include <i18nutil/transliteration.hxx> +#include <tools/diagnose_ex.h> + +#include <com/sun/star/i18n/Transliteration.hpp> + +using namespace ::com::sun::star::lang; +using namespace ::com::sun::star::i18n; +using namespace ::com::sun::star::uno; +using namespace ::utl; + +TransliterationWrapper::TransliterationWrapper( + const Reference< XComponentContext > & rxContext, + TransliterationFlags nTyp ) + : xTrans( Transliteration::create(rxContext) ), + aLanguageTag( LANGUAGE_SYSTEM ), nType( nTyp ), bFirstCall( true ) +{ +} + +TransliterationWrapper::~TransliterationWrapper() +{ +} + +OUString TransliterationWrapper::transliterate(const OUString& rStr, LanguageType nLang, + sal_Int32 nStart, sal_Int32 nLen, + Sequence <sal_Int32>* pOffset ) +{ + OUString sRet; + if( xTrans.is() ) + { + try + { + loadModuleIfNeeded( nLang ); + + if ( pOffset ) + sRet = xTrans->transliterate( rStr, nStart, nLen, *pOffset ); + else + sRet = xTrans->transliterateString2String( rStr, nStart, nLen); + } + catch( Exception& ) + { + TOOLS_WARN_EXCEPTION("unotools.i18n", "" ); + } + } + return sRet; +} + +OUString TransliterationWrapper::transliterate( const OUString& rStr, + sal_Int32 nStart, sal_Int32 nLen ) const +{ + OUString sRet( rStr ); + if( xTrans.is() ) + { + try + { + sRet = xTrans->transliterateString2String( rStr, nStart, nLen); + } + catch( Exception& ) + { + TOOLS_WARN_EXCEPTION("unotools.i18n", "" ); + } + } + return sRet; +} + +bool TransliterationWrapper::needLanguageForTheMode() const +{ + return TransliterationFlags::UPPERCASE_LOWERCASE == nType || + TransliterationFlags::LOWERCASE_UPPERCASE == nType || + TransliterationFlags::IGNORE_CASE == nType || + TransliterationFlags::SENTENCE_CASE == nType || + TransliterationFlags::TITLE_CASE == nType || + TransliterationFlags::TOGGLE_CASE == nType; +} + +void TransliterationWrapper::setLanguageLocaleImpl( LanguageType nLang ) +{ + if( LANGUAGE_NONE == nLang ) + nLang = LANGUAGE_SYSTEM; + aLanguageTag.reset( nLang); +} + +void TransliterationWrapper::loadModuleIfNeeded( LanguageType nLang ) +{ + bool bLoad = bFirstCall; + bFirstCall = false; + + if( nType == TransliterationFlags::SENTENCE_CASE ) + { + if( bLoad ) + loadModuleByImplName("SENTENCE_CASE", nLang); + } + else if( nType == TransliterationFlags::TITLE_CASE ) + { + if( bLoad ) + loadModuleByImplName("TITLE_CASE", nLang); + } + else if( nType == TransliterationFlags::TOGGLE_CASE ) + { + if( bLoad ) + loadModuleByImplName("TOGGLE_CASE", nLang); + } + else + { + if( aLanguageTag.getLanguageType() != nLang ) + { + setLanguageLocaleImpl( nLang ); + if( !bLoad ) + bLoad = needLanguageForTheMode(); + } + if( bLoad ) + loadModuleImpl(); + } +} + +void TransliterationWrapper::loadModuleImpl() const +{ + if ( bFirstCall ) + const_cast<TransliterationWrapper*>(this)->setLanguageLocaleImpl( LANGUAGE_SYSTEM ); + + try + { + if ( xTrans.is() ) + xTrans->loadModule( static_cast<TransliterationModules>(nType), aLanguageTag.getLocale() ); + } + catch ( const Exception& ) + { + TOOLS_WARN_EXCEPTION( "unotools.i18n", "loadModuleImpl" ); + } + + bFirstCall = false; +} + +void TransliterationWrapper::loadModuleByImplName(const OUString& rModuleName, + LanguageType nLang ) +{ + try + { + setLanguageLocaleImpl( nLang ); + css::lang::Locale aLocale( aLanguageTag.getLocale()); + // Reset LanguageTag, so the next call to loadModuleIfNeeded() forces + // new settings. + aLanguageTag.reset( LANGUAGE_DONTKNOW); + if ( xTrans.is() ) + xTrans->loadModuleByImplName( rModuleName, aLocale ); + } + catch ( const Exception& ) + { + TOOLS_WARN_EXCEPTION( "unotools.i18n", "loadModuleByImplName" ); + } + + bFirstCall = false; +} + +bool TransliterationWrapper::equals( + const OUString& rStr1, sal_Int32 nPos1, sal_Int32 nCount1, sal_Int32& nMatch1, + const OUString& rStr2, sal_Int32 nPos2, sal_Int32 nCount2, sal_Int32& nMatch2 ) const +{ + try + { + if( bFirstCall ) + loadModuleImpl(); + if ( xTrans.is() ) + return xTrans->equals( rStr1, nPos1, nCount1, nMatch1, rStr2, nPos2, nCount2, nMatch2 ); + } + catch ( const Exception& ) + { + TOOLS_WARN_EXCEPTION( "unotools.i18n", "equals" ); + } + return false; +} + +sal_Int32 TransliterationWrapper::compareString( const OUString& rStr1, const OUString& rStr2 ) const +{ + try + { + if( bFirstCall ) + loadModuleImpl(); + if ( xTrans.is() ) + return xTrans->compareString( rStr1, rStr2 ); + } + catch (const Exception&) + { + TOOLS_WARN_EXCEPTION( "unotools.i18n", "compareString" ); + } + return 0; +} + +// --- helpers -------------------------------------------------------- + +bool TransliterationWrapper::isEqual( const OUString& rStr1, const OUString& rStr2 ) const +{ + sal_Int32 nMatch1(0), nMatch2(0); + bool bMatch = equals( + rStr1, 0, rStr1.getLength(), nMatch1, + rStr2, 0, rStr2.getLength(), nMatch2 ); + return bMatch; +} + +bool TransliterationWrapper::isMatch( const OUString& rStr1, const OUString& rStr2 ) const +{ + sal_Int32 nMatch1(0), nMatch2(0); + equals( + rStr1, 0, rStr1.getLength(), nMatch1, + rStr2, 0, rStr2.getLength(), nMatch2 ); + return (nMatch1 <= nMatch2) && (nMatch1 == rStr1.getLength()); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |