//##################################################################################################
//
//   Custom Visualization Core library
//   Copyright (C) 2011-2012 Ceetron AS
//    
//   This library is free software: you can redistribute it and/or modify 
//   it under the terms of the GNU General Public License as published by 
//   the Free Software Foundation, either version 3 of the License, or 
//   (at your option) any later version. 
//    
//   This library is distributed in the hope that it will be useful, but WITHOUT ANY 
//   WARRANTY; without even the implied warranty of MERCHANTABILITY or 
//   FITNESS FOR A PARTICULAR PURPOSE.   
//    
//   See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>> 
//   for more details. 
//
//##################################################################################################

#include "cvfBase.h"

#include "cvfqtUtils.h"

#include <QtCore/QVector>

namespace cvfqt {



//==================================================================================================
///
/// \class cvfqt::Utils
/// \ingroup GuiQt
///
/// Static helper class for CeeViz/Qt interop
/// 
//==================================================================================================

//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
QString	Utils::toQString(const cvf::String& ceeString)
{
    if (ceeString.isEmpty())
    {
        return QString();
    }

    if (sizeof(wchar_t) == 2)
    {
        const unsigned short* strPtr = reinterpret_cast<const unsigned short*>(ceeString.c_str());

        return QString::fromUtf16(strPtr);
    }
    else if (sizeof(wchar_t) == 4)
    {
        const unsigned int* strPtr = reinterpret_cast<const unsigned int*>(ceeString.c_str());

        return QString::fromUcs4(strPtr);
    }

    CVF_FAIL_MSG("Unexpected sizeof wchar_t");
    return QString();
}


//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
cvf::String Utils::fromQString(const QString& qtString)
{
    if (qtString.length() == 0)
    {
		return cvf::String();
    }

    if (sizeof(wchar_t) == 2)
    {
        const wchar_t* strPtr = reinterpret_cast<const wchar_t*>(qtString.utf16());

		return cvf::String(strPtr);
    }
    else if (sizeof(wchar_t) == 4)
    {
        QVector<uint> ucs4Str = qtString.toUcs4();
        ucs4Str.push_back(0);
        const wchar_t* strPtr = reinterpret_cast<const wchar_t*>(ucs4Str.data());

		return cvf::String(strPtr);
    }

    CVF_FAIL_MSG("Unexpected sizeof wchar_t");
	return cvf::String();
}


} // namespace cvfqt