Customised QCalendarWidget

class ourCalendarWidget : public QCalendarWidget

{

Q_OBJECT

public:

         ourCalendarWidget(QWidget *parent = 0) : QCalendarWidget(parent){}

        ~ourCalendarWidget() {}

void ourCall(QDate date)

{

    // here we set some conditions

    update();

}

protected:

void paintCell(QPainter *painter, const QRect &rect, const QDate &date) const

{

    if ( ) // our conditions

    {     // When the conditions are matched, passed QDate is drawn as we like.                              

         

        painter->save();

        painter->drawEllipse(rect);   // here we draw n ellipse and the day--

        painter->drawText(rec, Qt::TextSingleLine, Qt::AlignCenter,QString::number(date.day()));

        painter->restore();

    }

    else

    {   // if our conditions are not matching, show the default way.

        QCalendarWidget::paintCell(painter, rect, date);

    }

}