/* -*- 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace ::com::sun::star; class SvtLanguageTableImpl { private: std::vector> m_aStrings; public: SvtLanguageTableImpl(); bool HasType( const LanguageType eType ) const; OUString GetString( const LanguageType eType ) const; LanguageType GetType( const OUString& rStr ) const; sal_uInt32 GetEntryCount() const; LanguageType GetTypeAtIndex( sal_uInt32 nIndex ) const; sal_uInt32 AddItem(const OUString& rLanguage, const LanguageType eType) { m_aStrings.emplace_back(rLanguage, eType); return m_aStrings.size(); } LanguageType GetValue(sal_uInt32 nIndex) const { return (nIndex < m_aStrings.size()) ? m_aStrings[nIndex].second : LANGUAGE_DONTKNOW; } sal_uInt32 FindIndex(LanguageType nValue) const { const size_t nItems = m_aStrings.size(); for (size_t i = 0; i < nItems; ++i) { if (m_aStrings[i].second == nValue) return i; } return RESARRAY_INDEX_NOTFOUND; } }; namespace { struct theLanguageTable : public rtl::Static< SvtLanguageTableImpl, theLanguageTable > {}; } OUString ApplyLreOrRleEmbedding( const OUString &rText ) { const sal_Int32 nLen = rText.getLength(); if (nLen == 0) return OUString(); const sal_Unicode cLRE_Embedding = 0x202A; // the start char of an LRE embedding const sal_Unicode cRLE_Embedding = 0x202B; // the start char of an RLE embedding const sal_Unicode cPopDirectionalFormat = 0x202C; // the unicode PDF (POP_DIRECTIONAL_FORMAT) char that terminates an LRE/RLE embedding // check if there are already embedding characters at the strings start // if so change nothing const sal_Unicode cChar = rText[0]; if (cChar == cLRE_Embedding || cChar == cRLE_Embedding) return rText; // since we only call the function getCharacterDirection // it does not matter which locale the CharClass is for. // Thus we can readily make use of SvtSysLocale::GetCharClass() // which should come at no cost... SvtSysLocale aSysLocale; const CharClass &rCharClass = aSysLocale.GetCharClass(); // we should look for the first non-neutral LTR or RTL character // and use that to determine the embedding of the whole text... // Thus we can avoid to check every character of the text. bool bFound = false; bool bIsRtlText = false; for (sal_Int32 i = 0; i < nLen && !bFound; ++i) { i18n::DirectionProperty nDirection = rCharClass.getCharacterDirection( rText, i ); switch (nDirection) { case i18n::DirectionProperty_LEFT_TO_RIGHT : case i18n::DirectionProperty_LEFT_TO_RIGHT_EMBEDDING : case i18n::DirectionProperty_LEFT_TO_RIGHT_OVERRIDE : case i18n::DirectionProperty_EUROPEAN_NUMBER : case i18n::DirectionProperty_ARABIC_NUMBER : // yes! arabic numbers are written from left to right { bIsRtlText = false; bFound = true; break; } case i18n::DirectionProperty_RIGHT_TO_LEFT : case i18n::DirectionProperty_RIGHT_TO_LEFT_ARABIC : case i18n::DirectionProperty_RIGHT_TO_LEFT_EMBEDDING : case i18n::DirectionProperty_RIGHT_TO_LEFT_OVERRIDE : { bIsRtlText = true; bFound = true; break; } default: { // nothing to be done, character is considered to be neutral we need to look further ... } } } sal_Unicode cStart = cLRE_Embedding; // default is to use LRE embedding characters if (bIsRtlText) cStart = cRLE_Embedding; // then use RLE embedding // add embedding start and end chars to the text if the direction could be determined OUString aRes( rText ); if (bFound) { aRes = OUStringChar(cStart) + aRes + OUStringChar(cPopDirectionalFormat); } return aRes; } static OUString lcl_getDescription( const OUString& rBcp47 ) { // Place in curly brackets, so all on-the-fly tags are grouped together at // the top of a listbox (but behind the "[None]" entry), and not sprinkled // all over, which alphabetically might make sense in an English UI only // anyway. Also a visual indicator that it is a programmatical name, IMHO. /* TODO: pulling descriptive names (language, script, country, subtags) * from liblangtag or ISO databases might be nice, but those are English * only. Maybe ICU, that has translations for language and country. */ return "{" + rBcp47 + "}"; } SvtLanguageTableImpl::SvtLanguageTableImpl() { for (size_t i = 0; i < SAL_N_ELEMENTS(STR_ARR_SVT_LANGUAGE_TABLE); ++i) { m_aStrings.emplace_back(SvtResId(STR_ARR_SVT_LANGUAGE_TABLE[i].first), STR_ARR_SVT_LANGUAGE_TABLE[i].second); } auto xNA = officecfg::VCL::ExtraLanguages::get(); const uno::Sequence rElementNames = xNA->getElementNames(); for (const OUString& rBcp47 : rElementNames) { OUString aName; sal_Int32 nType = 0; uno::Reference xNB; xNA->getByName(rBcp47) >>= xNB; bool bSuccess = (xNB->getByName("Name") >>= aName) && (xNB->getByName("ScriptType") >>= nType); if (bSuccess) { LanguageTag aLang(rBcp47); LanguageType nLangType = aLang.getLanguageType(); if (nType <= sal_Int32(LanguageTag::ScriptType::RTL) && nType > sal_Int32(LanguageTag::ScriptType::UNKNOWN)) aLang.setScriptType(LanguageTag::ScriptType(nType)); sal_uInt32 nPos = FindIndex(nLangType); if (nPos == RESARRAY_INDEX_NOTFOUND) AddItem((aName.isEmpty() ? lcl_getDescription(rBcp47) : aName), nLangType); } } } bool SvtLanguageTableImpl::HasType( const LanguageType eType ) const { LanguageType eLang = MsLangId::getReplacementForObsoleteLanguage( eType ); sal_uInt32 nPos = FindIndex(eLang); return RESARRAY_INDEX_NOTFOUND != nPos && nPos < GetEntryCount(); } bool SvtLanguageTable::HasLanguageType( const LanguageType eType ) { return theLanguageTable::get().HasType( eType ); } OUString SvtLanguageTableImpl::GetString( const LanguageType eType ) const { LanguageType eLang = MsLangId::getReplacementForObsoleteLanguage( eType ); sal_uInt32 nPos = FindIndex(eLang); if ( RESARRAY_INDEX_NOTFOUND != nPos && nPos < GetEntryCount() ) return m_aStrings[nPos].first; //Rather than return a fairly useless "Unknown" name, return a geeky but usable-in-a-pinch lang-tag OUString sLangTag( lcl_getDescription( LanguageTag::convertToBcp47(eType))); SAL_WARN("svtools.misc", "Language: 0x" << std::hex << eType << " with unknown name, so returning lang-tag of: " << sLangTag); // And add it to the table if it is an on-the-fly-id, which it usually is, // so it is available in all subsequent language boxes. if (LanguageTag::isOnTheFlyID( eType)) const_cast(this)->AddItem( sLangTag, eType); return sLangTag; } OUString SvtLanguageTable::GetLanguageString( const LanguageType eType ) { return theLanguageTable::get().GetString( eType ); } LanguageType SvtLanguageTableImpl::GetType( const OUString& rStr ) const { LanguageType eType = LANGUAGE_DONTKNOW; sal_uInt32 nCount = GetEntryCount(); for ( sal_uInt32 i = 0; i < nCount; ++i ) { if (m_aStrings[i].first == rStr) { eType = GetValue(i); break; } } return eType; } LanguageType SvtLanguageTable::GetLanguageType( const OUString& rStr ) { return theLanguageTable::get().GetType( rStr ); } sal_uInt32 SvtLanguageTableImpl::GetEntryCount() const { return m_aStrings.size(); } sal_uInt32 SvtLanguageTable::GetLanguageEntryCount() { return theLanguageTable::get().GetEntryCount(); } LanguageType SvtLanguageTableImpl::GetTypeAtIndex( sal_uInt32 nIndex ) const { LanguageType nType = LANGUAGE_DONTKNOW; if (nIndex < GetEntryCount()) nType = GetValue(nIndex); return nType; } LanguageType SvtLanguageTable::GetLanguageTypeAtIndex( sal_uInt32 nIndex ) { return theLanguageTable::get().GetTypeAtIndex( nIndex); } sal_uInt32 SvtLanguageTable::AddLanguageTag( const LanguageTag& rLanguageTag ) { return theLanguageTable::get().AddItem( lcl_getDescription(rLanguageTag.getBcp47()), rLanguageTag.getLanguageType()); } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */