qt_string_intf.h

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namespace adtf
{
namespace base
{
namespace ant
{

template<>
struct adtf_string_forward<QString>
{
    mutable ::std::optional<QByteArray> m_oValueToReturnConstChar;

    static constexpr bool is_mutable = true;

    const char* GetConstChar(const QString* const pValue) const
    {
        if (pValue != nullptr)
        {
            if (!m_oValueToReturnConstChar)
            {
                m_oValueToReturnConstChar = pValue->toLocal8Bit();
            }
            return m_oValueToReturnConstChar->constData();
        }
        return nullptr;
    }

    size_t GetCurrentLength(const QString* const pValue) const
    {
        if (pValue != nullptr)
        {
            if (!m_oValueToReturnConstChar)
            {
                m_oValueToReturnConstChar = pValue->toLocal8Bit();
            }
            return m_oValueToReturnConstChar->length();
        }
        return IString::InvalidPos;
    }

    tResult SetValue(QString* const pValue, const char* strValue)
    {
        m_oValueToReturnConstChar = strValue;
        *pValue = QString::fromLocal8Bit(*m_oValueToReturnConstChar);
        RETURN_NOERROR;
    }
};

template<>
struct adtf_string_forward<const QString> : adtf_string_forward<QString>
{
    static constexpr bool is_mutable = false;

    static tResult SetValue(const QString* const /* pValue */, const char* /* strValue */)
    {
        RETURN_ERROR(ERR_ACCESS_DENIED);
    }
};
 
} // namespace ant
} // namespace base
} // namespace adtf

#define adtf_qstring_intf(q_string_val) adtf_string_intf(q_string_val)