#ifndef NEWCALENDARWIDGET_H
    #define NEWCALENDARWIDGET_H

    #include <qcalendarwidget>
    #include <qcolor>
    #include <qdate>
    #include <qpen>
    #include <qbrush>

    class NewCalendarWidget : public QCalendarWidget
    {
    Q_OBJECT

    Q_PROPERTY(QColor color READ getColor WRITE setColor)

    public:
       NewCalendarWidget(QWidget *parent = 0);
       ~NewCalendarWidget();

       void setColor(QColor& color);
       QColor getColor();

    protected:
       virtual void paintCell(QPainter *painter, const QRect &rect, const QDate &date) const;

    private:
       QDate m_currentDate;
       QPen m_outlinePen;
       QBrush m_transparentBrush;
    };

    #endif // NEWCALENDARWIDGET_H

    #include <qpainter>
    #include "newcalendarwidget.h"

    NewCalendarWidget::NewCalendarWidget(QWidget *parent)
       : QCalendarWidget(parent)
    {
       m_currentDate = QDate::currentDate();
       m_outlinePen.setColor(Qt::red);
       m_transparentBrush.setColor(Qt::transparent);
    }

    NewCalendarWidget::~NewCalendarWidget()
    {

    }

    void NewCalendarWidget::setColor(QColor& color)
    {
       m_outlinePen.setColor(color);
    }

    QColor NewCalendarWidget::getColor()
    {
       return (m_outlinePen.color());
    }

    void NewCalendarWidget::paintCell(QPainter *painter, const QRect &rect, const QDate &date) const
    {
       QCalendarWidget::paintCell(painter, rect, date);

       if (date == m_currentDate)
       {
           painter->setPen(m_outlinePen);
           painter->setBrush(m_transparentBrush);
           painter->drawRect(rect.adjusted(0, 0, -1, -1));
       }
    }