problem in positioning item in QGraphicsScene()

hi friends,
i have a problem in positioning an rect item (0, 0, 20, 150) in a graphicsScene() of size (0, 0, 1024, 1024)

Code:

---

DiagView::DiagView(QWidget *parent)
            : QGraphicsView(parent)
 
{
        setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
        setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
         setCacheMode(CacheBackground);
        setViewportUpdateMode(FullViewportUpdate);
        setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
        setStyleSheet("background:#336699");
        QRectF bounds(0, 0, 1024, 1024);
        scene = new QGraphicsScene(bounds, this);
        setScene(scene);
 
        item1 = new SlotItem(QRectF(0, 0, 20, 150));
        item1->setPos(10,180);
        scene->addItem(item1);
}
void DiagView::resizeEvent(QResizeEvent *event)
{
        QGraphicsView::resizeEvent(event);
        fitInView(scene->sceneRect(), Qt::KeepAspectRatio);
}

---

slotitem.cpp

Code:

---

SlotItem::SlotItem(const QRectF &rect)
        : QGraphicsRectItem(rect)
{
 
}
void SlotItem::paint(QPainter *painter, const  QStyleOptionGraphicsItem *, QWidget *)
{
        painter->setBrush(QColor(0, 102, 153));
        painter->drawRoundRect(rect());
 
}
QRectF SlotItem::boundingRect()
{
        return QRectF(0,0, 50,300);
 
}

---

main.cpp

Code:

---

int main(int argc, char *argv[])
{
        QApplication app(argc, argv);
 
        DiagView *dialog = new DiagView();
        dialog->setGeometry(0, 0, 1024, 1024);
        dialog->show();
        return app.exec();
}

---

but the SlotItem is shown in the center of the view port because of the resize event .. if i dont use resize event it positioned the item acurately ... but i need the resize event in future ... what went wrong in my code .. please any one help me ...

I'm a bit confused. First you pass a rectangle to the QGraphicsRectItem constructor but then you reimplement boundingRect() and return a different rectangle. What's the point of doing that? The two rectangles should be identical.

About your problem - try changing the aspect parameter of the fitInView call.

sorry i will change soon the bounding rect value ....
sir in my view i set the geometry to (1024, 1024) and QGraphicsScene also has the same and i positioned the item and it works correctly ... i reimplement the resize event then now the item displayed in centre when i use setPos(0, 30) in my scene .... please help ...

Please read my post again.

try changing the aspect parameter of the fitInView call.
thanks ... i will