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Diffstat (limited to 'vcl/source/app/i18nhelp.cxx')
| -rw-r--r-- | vcl/source/app/i18nhelp.cxx | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/vcl/source/app/i18nhelp.cxx b/vcl/source/app/i18nhelp.cxx new file mode 100644 index 000000000..ae7eed0e2 --- /dev/null +++ b/vcl/source/app/i18nhelp.cxx @@ -0,0 +1,160 @@ +/* -*- 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 <unotools/localedatawrapper.hxx> +#include <unotools/transliterationwrapper.hxx> + +#include <i18nlangtag/languagetag.hxx> +#include <i18nutil/transliteration.hxx> + +#include <rtl/ustrbuf.hxx> + +#include <vcl/i18nhelp.hxx> + +using namespace ::com::sun::star; + +vcl::I18nHelper::I18nHelper( const css::uno::Reference< css::uno::XComponentContext >& rxContext, const LanguageTag& rLanguageTag ) + : + maLanguageTag( rLanguageTag) +{ + m_xContext = rxContext; + mpLocaleDataWrapper = nullptr; + mpTransliterationWrapper= nullptr; + mbTransliterateIgnoreCase = false; +} + +vcl::I18nHelper::~I18nHelper() +{ + ImplDestroyWrappers(); +} + +void vcl::I18nHelper::ImplDestroyWrappers() +{ + mpLocaleDataWrapper.reset(); + mpTransliterationWrapper.reset(); +} + +utl::TransliterationWrapper& vcl::I18nHelper::ImplGetTransliterationWrapper() const +{ + if ( !mpTransliterationWrapper ) + { + TransliterationFlags nModules = TransliterationFlags::IGNORE_WIDTH; + if ( mbTransliterateIgnoreCase ) + nModules |= TransliterationFlags::IGNORE_CASE; + + const_cast<vcl::I18nHelper*>(this)->mpTransliterationWrapper.reset(new utl::TransliterationWrapper( m_xContext, nModules )); + const_cast<vcl::I18nHelper*>(this)->mpTransliterationWrapper->loadModuleIfNeeded( maLanguageTag.getLanguageType() ); + } + return *mpTransliterationWrapper; +} + +LocaleDataWrapper& vcl::I18nHelper::ImplGetLocaleDataWrapper() const +{ + if ( !mpLocaleDataWrapper ) + { + const_cast<vcl::I18nHelper*>(this)->mpLocaleDataWrapper.reset(new LocaleDataWrapper( m_xContext, maLanguageTag )); + } + return *mpLocaleDataWrapper; +} + +static bool is_formatting_mark( sal_Unicode c ) +{ + if( (c >= 0x200B) && (c <= 0x200F) ) // BiDi and zero-width-markers + return true; + if( (c >= 0x2028) && (c <= 0x202E) ) // BiDi and paragraph-markers + return true; + return false; +} + +/* #i100057# filter formatting marks out of strings before passing them to + the transliteration. The real solution would have been an additional TransliterationModule + to ignore these marks during transliteration; however changing the code in i18npool that actually + implements this could produce unwanted side effects. + + Of course this copying around is not really good, but looking at i18npool, one more time + will not hurt. +*/ +OUString vcl::I18nHelper::filterFormattingChars( const OUString& rStr ) +{ + sal_Int32 nLength = rStr.getLength(); + OUStringBuffer aBuf( nLength ); + const sal_Unicode* pStr = rStr.getStr(); + while( nLength-- ) + { + if( ! is_formatting_mark( *pStr ) ) + aBuf.append( *pStr ); + pStr++; + } + return aBuf.makeStringAndClear(); +} + +sal_Int32 vcl::I18nHelper::CompareString( const OUString& rStr1, const OUString& rStr2 ) const +{ + ::osl::Guard< ::osl::Mutex > aGuard( const_cast<vcl::I18nHelper*>(this)->maMutex ); + + if ( mbTransliterateIgnoreCase ) + { + // Change mbTransliterateIgnoreCase and destroy the wrapper, next call to + // ImplGetTransliterationWrapper() will create a wrapper with the correct bIgnoreCase + const_cast<vcl::I18nHelper*>(this)->mbTransliterateIgnoreCase = false; + const_cast<vcl::I18nHelper*>(this)->mpTransliterationWrapper.reset(); + } + + OUString aStr1( filterFormattingChars(rStr1) ); + OUString aStr2( filterFormattingChars(rStr2) ); + return ImplGetTransliterationWrapper().compareString( aStr1, aStr2 ); +} + +bool vcl::I18nHelper::MatchString( const OUString& rStr1, const OUString& rStr2 ) const +{ + ::osl::Guard< ::osl::Mutex > aGuard( const_cast<vcl::I18nHelper*>(this)->maMutex ); + + if ( !mbTransliterateIgnoreCase ) + { + // Change mbTransliterateIgnoreCase and destroy the wrapper, next call to + // ImplGetTransliterationWrapper() will create a wrapper with the correct bIgnoreCase + const_cast<vcl::I18nHelper*>(this)->mbTransliterateIgnoreCase = true; + const_cast<vcl::I18nHelper*>(this)->mpTransliterationWrapper.reset(); + } + + OUString aStr1( filterFormattingChars(rStr1) ); + OUString aStr2( filterFormattingChars(rStr2) ); + return ImplGetTransliterationWrapper().isMatch( aStr1, aStr2 ); +} + +bool vcl::I18nHelper::MatchMnemonic( const OUString& rString, sal_Unicode cMnemonicChar ) const +{ + ::osl::Guard< ::osl::Mutex > aGuard( const_cast<vcl::I18nHelper*>(this)->maMutex ); + + bool bEqual = false; + sal_Int32 n = rString.indexOf( '~' ); + if ( n != -1 ) + { + OUString aMatchStr = rString.copy( n+1 ); // not only one char, because of transliteration... + bEqual = MatchString( OUString(cMnemonicChar), aMatchStr ); + } + return bEqual; +} + +OUString vcl::I18nHelper::GetNum( long nNumber, sal_uInt16 nDecimals, bool bUseThousandSep, bool bTrailingZeros ) const +{ + return ImplGetLocaleDataWrapper().getNum( nNumber, nDecimals, bUseThousandSep, bTrailingZeros ); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |