QGraphicsView scaling

[cyril1973]

Hello,

I'am playing with QGraphics and I encounter a problem with the following code.
It is simply a red circle in a scene. Its dimension can be scaled with the "factor" variable.
The view is scaled in order the circle has always the same size on the screen.

When factor is 10 I can click the circle, but when factor is 1 It is as the shape was the boundingRect.

I don't understand this behavior, is there is limit in item size ?

Thanks a lot,

Cyril.

@#include <QtGui>

float dim = 5e-3;
float scale = 20000;
float factor = 1.;

int main(int argc, char *argv[])
{
QApplication app(argc, argv);
dim = dim * factor;
scale = scale / factor;

QGraphicsView *view = new QGraphicsView;
QGraphicsScene *scene = new QGraphicsScene;
QRectF rect = QRectF(-dim, -dim, 2*dim, 2*dim);
QGraphicsEllipseItem *item = new QGraphicsEllipseItem(rect, 0);
item->setBrush(QBrush(Qt::red));
item->setFlag(QGraphicsItem::ItemIsSelectable, true);
item->setFlag(QGraphicsItem::ItemIsMovable, true);
scene->addItem(item);
view->scale(scale, scale);
view->setRenderHints(QPainter::Antialiasing);
view->setScene(scene);
view->show();
return app.exec();

}
@