igstk::QTWidget display problem.

Hi All,

I have developed a QT GUI which uses IGSTK ,ITK AND VTK classes functionality.

Code:

---

//ScribbleArea.h is as shown below
 
class ScribbleArea : public igstk::QTWidget
{
    Q_OBJECT
 
public:
    ScribbleArea(QWidget *parent = 0,Qt::WFlags flags = 0);
    bool openImage(const QString &fileName);
    bool saveImage(const QString &fileName, const char *fileFormat);
    void setPenColor(const QColor &newColor);
    void setPenWidth(int newWidth);
 
    bool isModified() const { return modified; }
    QColor penColor() const { return myPenColor; }
    int penWidth() const { return myPenWidth; }
    void DrawEllipse();
 
 
public slots:
    void clearImage();
    void print();
 
protected:
    void mousePressEvent(QMouseEvent *event);
    void mouseMoveEvent(QMouseEvent *event);
    void mouseReleaseEvent(QMouseEvent *event);
    void paintEvent(QPaintEvent *event);
 private:
    void drawLineTo(const QPoint &endPoint);
    bool modified;
    bool scribbling;
    int myPenWidth;
    QColor myPenColor;
    QImage image;
    QPoint lastPoint;
 
};
//part of ScribbleArea.cpp is as shown below
ScribbleArea::ScribbleArea(QWidget *parent,Qt::WFlags flags):igstk::QTWidget(parent,flags)
{
    setAttribute(Qt::WA_StaticContents);
    modified = false;
    scribbling = false;
    myPenWidth = 3;
    myPenColor = Qt::blue;
}
void ScribbleArea::paintEvent(QPaintEvent *event)
{
    QPainter painter(this);
    painter.setRenderHint(QPainter::Antialiasing, true);
    painter.setPen(QPen(Qt::red, 12, Qt::DashDotLine, Qt::RoundCap));
    painter.setBrush(QBrush(Qt::green, Qt::SolidPattern));
    painter.drawEllipse(80, 80, 200, 200);
}
//In the constructor of the QMainWindow derived class (i.e in QFIRST.CPP)i have the below code:
 
ScribbleArea* AxialWidget;
m_AxialWidget = new ScribbleArea(ui.groupBox_4);
 
typedef igstk::View2D        View2DType;
View2DType::Pointer m_view2DAxial;
 
m_AxialWidget->RequestSetView(m_view2DAxial);

---

The problem is that i am not able to see the ellipse inside the m_AxialWidget when i run the application.
PLease help me in this, i am a newbie in QT,IGSTK,VTK and ITK.

thanks,
ashwath