void InputField::newInput(const QString & text)
{
    Quantity res;
    try{
        res = Quantity::parse(text);
    }catch(Base::Exception &e){
        ErrorText = e.what();
        this->setToolTip(QString::fromAscii(ErrorText.c_str()));
        QPalette palette;
        palette.setColor(QPalette::Base,QColor(255,200,200));
        setPalette(palette);
        parseError(QString::fromAscii(ErrorText.c_str()));
        return;
    }
    QPalette palette;
    palette.setColor(QPalette::Base,QColor(200,255,200));
    setPalette(palette);
    ErrorText = "";
    this->setToolTip(QString::fromAscii(ErrorText.c_str()));
    actQuantity = res;
    double dFactor;
    res.getUserString(dFactor,actUnitStr);
    // calculate the number shown 
    actUnitValue = res.getValue()/dFactor; 
    // signaling 
    valueChanged(res);

}
void InputField::newInput(const QString & text)
{
    Quantity res;
    try{
        res = Quantity::parse(text);
    }catch(Base::Exception &e){
        ErrorText = e.what();
        this->setToolTip(QString::fromAscii(ErrorText.c_str()));
        QPixmap pixmap = BitmapFactory().pixmapFromSvg(":/icons/button_invalid.svg", QSize(sizeHint().height(),sizeHint().height()));
        iconLabel->setPixmap(pixmap);
        parseError(QString::fromAscii(ErrorText.c_str()));
        return;
    }

    QPixmap pixmap = BitmapFactory().pixmapFromSvg(":/icons/button_valid.svg", QSize(sizeHint().height(),sizeHint().height()));
    iconLabel->setPixmap(pixmap);

    ErrorText = "";
    this->setToolTip(QString::fromAscii(ErrorText.c_str()));
    actQuantity = res;
    double dFactor;
    res.getUserString(dFactor,actUnitStr);
    // calculate the number shown 
    actUnitValue = res.getValue()/dFactor; 
    // signaling 
    valueChanged(res);

}
void QuantitySpinBox::updateText(const Quantity &quant)
{
    Q_D(QuantitySpinBox);

    double dFactor;
    QString txt = quant.getUserString(dFactor,d->unitStr);
    d->unitValue = quant.getValue()/dFactor;
    lineEdit()->setText(txt);
}