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kdelibs'KDoubleLine (./kdelibs/kdeui/knuminput.cpp:474)

class KDoubleLine : public QLineEdit
{
public:
    KDoubleLine(KDoubleNumInput* parent, const char* name)
        : QLineEdit(parent, name)
        { };

    void interpretText();
protected:
    virtual void wheelEvent(QWheelEvent* e);
};

void KDoubleLine::wheelEvent(QWheelEvent* e)
{
    KDoubleNumInput* w = static_cast<KDoubleNumInput*>(parent());

    if(edited())
        interpretText();

    if(w->m_range) {
        w->setValue(w->value() + (e->delta()/120)*w->m_step);
        e->accept();
    }
    else
        e->ignore();
}


void KDoubleLine::interpretText()
{
    KDoubleNumInput* w = static_cast<KDoubleNumInput*>(parent());

    QString s = QString(text()).stripWhiteSpace();
    if ( !w->m_prefix.isEmpty() ) {
        QString px = QString(w->m_prefix).stripWhiteSpace();
        int len = px.length();
        if ( len && s.left(len) == px )
            s.remove( 0, len );
    }
    if ( !w->m_suffix.isEmpty() ) {
        QString sx = QString(w->m_suffix).stripWhiteSpace();
        int len = sx.length();
        if ( len && s.right(len) == sx )
            s.truncate( s.length() - len );
    }

    s = s.stripWhiteSpace();

    if(edited()) {
        bool ok;
        double value = s.toDouble(&ok);
        if(ok) {
            w->m_value = value;
            setEdited(false);
        }

    }
}


// -----------------------------------------------------------------------------

kdelibs'KDoubleLine::interpretText() (./kdelibs/kdeui/knuminput.cpp:502)

void KDoubleLine::interpretText()
{
    KDoubleNumInput* w = static_cast<KDoubleNumInput*>(parent());

    QString s = QString(text()).stripWhiteSpace();
    if ( !w->m_prefix.isEmpty() ) {
        QString px = QString(w->m_prefix).stripWhiteSpace();
        int len = px.length();
        if ( len && s.left(len) == px )
            s.remove( 0, len );
    }
    if ( !w->m_suffix.isEmpty() ) {
        QString sx = QString(w->m_suffix).stripWhiteSpace();
        int len = sx.length();
        if ( len && s.right(len) == sx )
            s.truncate( s.length() - len );
    }

    s = s.stripWhiteSpace();

    if(edited()) {
        bool ok;
        double value = s.toDouble(&ok);
        if(ok) {
            w->m_value = value;
            setEdited(false);
        }

    }
}


// -----------------------------------------------------------------------------