/****************************************************************************

**

** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbCore module of the UI Extensions for Mobile.

**

** GNU Lesser General Public License Usage

** This file may be used under the terms of the GNU Lesser General Public

** License version 2.1 as published by the Free Software Foundation and

** appearing in the file LICENSE.LGPL included in the packaging of this file.

** Please review the following information to ensure the GNU Lesser General

** Public License version 2.1 requirements will be met:

** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at developer.feedback@nokia.com.

**

****************************************************************************/

#include <QApplication>

#include <QFileInfo>

#include <QLocale>

#include <QTranslator> 

#include <QHash>

#include <hbfindfile.h>

#include <hbtranslator.h>

#include <hbtranslator_p.h>

const QString defaultpath = "/resource/qt/translations/";

/*!

    @beta

    @hbcore

    \class HbTranslator

    \brief HbTranslator installs QTranslator(s) automatically needed in localisation

    and loads translation files into QTranslator.

*/

/*!

    Default case: searches translation file from default location with default name, which is <executablename>.qm

*/

HbTranslator::HbTranslator(): d(new HbTranslatorPrivate())

{

    QFileInfo info(qApp->applicationFilePath());

    QString defaultname = info.baseName();  // defaultname = <executablename>

    d->installTranslator(defaultpath, defaultname);

}

/*!

    Searches translation file \a file from default location.

*/

HbTranslator::HbTranslator(const QString &file): d(new HbTranslatorPrivate())

{

    d->installTranslator(defaultpath, file);

}

/*!

    Searches translation file \a file from path \a path.

    \code

    HbTranslator trans("/resource/qt/custom/", "customfile");

    \endcode

*/

HbTranslator::HbTranslator(const QString &path, const QString &file): d(new HbTranslatorPrivate())

{

    d->installTranslator(path, file);

}

HbTranslator::~HbTranslator()

{

    delete d;

}

/*!

    Loads common.ts translations from default location.

*/

void HbTranslator::loadCommon()

{

    QString lang = QLocale::system().name();

    QString commonts = QString("Z:") + defaultpath + QString("common_") + lang;

    d->common.load(commonts);

    qApp->installTranslator(&d->common);

}

// internal function for common operations of HbTranslator

void HbTranslatorPrivate::installTranslator(const QString &path, const QString &name)

{

    QString filepath = qApp->applicationFilePath();

    QChar drive = filepath.at(0);

    QString lang = QLocale::system().name();

    QString lang2 = lang;

    languageDowngrade(lang);

    QString tsfile = path + name + QString("_") + lang + QString(".qm");

    if (!HbFindFile::hbFindFile(tsfile, drive)) {

    	tsfile = path + name + QString("_") + lang2 + QString(".qm");

        HbFindFile::hbFindFile(tsfile);

    }

    translator.load(tsfile);

    qApp->installTranslator(&translator);

}

// internal function for solving conflict between QLocale::system().name() and actual ts file naming convention.

bool HbTranslatorPrivate::languageDowngrade(QString &lang)

{

    static QHash<QString, QString> languages;

    languages["en_GB"] = "en";

    languages["fr_FR"] = "fr";

    languages["de_DE"] = "de";

    languages["es_ES"] = "es";

    languages["it_IT"] = "it";

    languages["sv_SE"] = "sv";

    languages["da_DK"] = "da";

    languages["no_NO"] = "no";

    languages["fi_FI"] = "fi";

    languages["en_US"] = "en_US";

    languages["pt_PT"] = "pt";

    languages["tr_TR"] = "tr";

    languages["is_IS"] = "is";

    languages["ru_RU"] = "ru";

    languages["hu_HU"] = "hu";

    languages["nl_NL"] = "nl";

    languages["cs_CZ"] = "cs";

    languages["sk_SK"] = "sk";

    languages["pl_PL"] = "pl";

    languages["sl_SI"] = "sl";

    languages["zh_TW"] = "zh_TW";

    languages["zh_HK"] = "zh_HK";

    languages["zh_CN"] = "zh_CN";

    languages["ja_JP"] = "ja";

    languages["th_TH"] = "th";

    languages["ar_AE"] = "ar";

    languages["tl_PH"] = "tl";

    languages["bg_BG"] = "bg";

    languages["ca_ES"] = "ca";

    languages["hr_HR"] = "hr";

    languages["et_EE"] = "et";

    languages["fa_IR"] = "fa";

    languages["fr_CA"] = "fr_CA";

    languages["el_GR"] = "el";

    languages["he_IL"] = "he";

    languages["hi_IN"] = "hi";

    languages["id_ID"] = "id";

    languages["ko_KR"] = "ko";

    languages["lv_LV"] = "lv";

    languages["lt_LT"] = "lt";

    languages["ms_MY"] = "ms";

    languages["pt_BR"] = "pt_BR";

    languages["ro_RO"] = "ro";

    languages["sr_YU"] = "sr";

    languages["es_MX"] = "es_MX"; //!!

    languages["uk_UA"] = "uk";

    languages["ur_PK"] = "ur";

    languages["vi_VN"] = "vi";

    languages["eu_ES"] = "eu";

    languages["gl_ES"] = "gl";

    if (languages.contains(lang)) {

    	lang  = languages.value(lang);

    	return true;

    }

    return false;

}