problem in QLinef()

[wagmare]

hi friends ,
i need a help to clarify my doubt in QLineF() .. i dont know where i am commiting the mistake ..

in mainwindow.cpp (QGraphicsView())
i create a line item class ....

line1 = new LineItem(QLineF(2,4, 132 ,160), Qt::blue);
        line1->setPos(374,215);

line1 = new LineItem(QLineF(2,4, 132 ,160), Qt::blue);
        line1->setPos(374,215);

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and
in lineitem.cpp

LineItem::LineItem(const QLineF &line, const Qt::GlobalColor color)
         : QGraphicsLineItem(line),
                color(color)
 
void LineItem ::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *)
{
         painter->setPen(QColor(color));
       QReal  value = 90;
        line().setAngle(value);
        painter->drawLine(line());
}

LineItem::LineItem(const QLineF &line, const Qt::GlobalColor color)
         : QGraphicsLineItem(line),
                color(color)

void LineItem ::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *)
{
         painter->setPen(QColor(color));
       QReal  value = 90;
        line().setAngle(value);
        painter->drawLine(line());
}

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here the line is drawn perfectly but i cant fix the angle ... its not turning in counter clockwise ... not like transform.rotate .. why ?

please help ...