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/* -*- 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 <boost/static_assert.hpp>
#include <tools/shl.hxx>
#include <com/sun/star/i18n/DirectionProperty.hpp>
#include <i18nlangtag/lang.h>
#include <i18nlangtag/mslangid.hxx>
#include <i18nlangtag/languagetag.hxx>
#include <svtools/svtools.hrc>
#include <svtools/svtresid.hxx>
#include <svtools/langtab.hxx>
#include <unotools/syslocale.hxx>
#include <tools/resary.hxx>
using namespace ::com::sun::star;
class SvtLanguageTableImpl : public ResStringArray
{
public:
SvtLanguageTableImpl();
virtual ~SvtLanguageTableImpl();
const OUString GetString( const LanguageType eType, bool bUserInterfaceSelection = false ) const;
LanguageType GetType( const OUString& rStr ) const;
sal_uInt32 GetEntryCount() const;
LanguageType GetTypeAtIndex( sal_uInt32 nIndex ) const;
};
namespace {
struct theLanguageTable : public rtl::Static< SvtLanguageTableImpl, theLanguageTable > {};
}
SVT_DLLPUBLIC const 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 alreay 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_uInt16 i = 0; i < nLen && !bFound; ++i)
{
sal_Int16 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 = OUString(cStart) + aRes + OUString(cPopDirectionalFormat);
}
return aRes;
}
namespace {
BOOST_STATIC_ASSERT(
16642 == STR_ARR_SVT_LANGUAGE_TABLE);
// "The value of STR_ARR_SVT_LANGUAGE_TABLE has changed. wizards/com/sun/star/wizards/letter/LocaleCodes.java has this value hard coded, please adapt it to your change."
}
SvtLanguageTableImpl::SvtLanguageTableImpl() :
ResStringArray( SvtResId( STR_ARR_SVT_LANGUAGE_TABLE ) )
{
}
SvtLanguageTableImpl::~SvtLanguageTableImpl()
{
}
const OUString SvtLanguageTableImpl::GetString( const LanguageType eType, bool bUserInterfaceSelection ) const
{
LanguageType eLang = MsLangId::getReplacementForObsoleteLanguage( eType, bUserInterfaceSelection);
sal_uInt32 nPos = FindIndex( eLang );
if ( RESARRAY_INDEX_NOTFOUND != nPos && nPos < Count() )
return ResStringArray::GetString( nPos );
//Rather than return a fairly useless "Unknown" name, return a geeky but usable-in-a-pinch lang-tag
OUString sLangTag(LanguageTag::convertToBcp47(eType));
SAL_WARN("svtools.misc", "Language: 0x"
<< std::hex << eType
<< " with unknown name, so returning lang-tag of: "
<< sLangTag);
return sLangTag;
}
OUString SvtLanguageTable::GetLanguageString( const LanguageType eType )
{
return theLanguageTable::get().GetString( eType, false );
}
OUString SvtLanguageTable::GetLanguageString( const LanguageType eType, bool bUserInterfaceSelection )
{
return theLanguageTable::get().GetString( eType, bUserInterfaceSelection );
}
LanguageType SvtLanguageTableImpl::GetType( const OUString& rStr ) const
{
LanguageType eType = LANGUAGE_DONTKNOW;
sal_uInt32 nCount = Count();
for ( sal_uInt32 i = 0; i < nCount; ++i )
{
if (ResStringArray::GetString( i ).equals(rStr))
{
eType = LanguageType( GetValue( i ) );
break;
}
}
return eType;
}
LanguageType SvtLanguageTable::GetLanguageType( const OUString& rStr )
{
return theLanguageTable::get().GetType( rStr );
}
sal_uInt32 SvtLanguageTableImpl::GetEntryCount() const
{
return Count();
}
sal_uInt32 SvtLanguageTable::GetLanguageEntryCount()
{
return theLanguageTable::get().GetEntryCount();
}
LanguageType SvtLanguageTableImpl::GetTypeAtIndex( sal_uInt32 nIndex ) const
{
LanguageType nType = LANGUAGE_DONTKNOW;
if (nIndex < Count())
nType = LanguageType( GetValue( nIndex ) );
return nType;
}
LanguageType SvtLanguageTable::GetLanguageTypeAtIndex( sal_uInt32 nIndex )
{
return theLanguageTable::get().GetTypeAtIndex( nIndex);
}
sal_uInt32 SvtLanguageTable::AddLanguageTag( const LanguageTag& rLanguageTag, const OUString& rString )
{
return theLanguageTable::get().AddItem( (rString.isEmpty() ? rLanguageTag.getBcp47() : rString),
rLanguageTag.getLanguageType());
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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