QBrush TexturePattern alignment

[Caius Aérobus]

Hello,
I create a QBrush with a TexturePattern and set a pixmap like this:

QPixmap pm("eye.png");
this->brush = QBrush(pm);
QRect r(100, 100, pm.width(), pm.height());
painter.fillRect(r, this->brush);

QPixmap pm("eye.png");
this->brush = QBrush(pm);
QRect r(100, 100, pm.width(), pm.height());
painter.fillRect(r, this->brush);

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The results is below, ie the image left corner is in the (about) middle of the QRect, so what did I miss?