QPainter rotate function

[ir210]

Hi,

I have problem with QCanvas since the beginning of my development time with qt. My newest problem is with QPainter inside QCanvasPolygonalItem's subclass.

Here is my code.

void drawShape(QPainter* p)
{
    p.rotate(45);
    p.drawRect(x(), y(), width(), height() ); // or something similiar, I forget
    p.rotate(-45); // as suggested in documentation
}

void drawShape(QPainter* p)
{
    p.rotate(45);
    p.drawRect(x(), y(), width(), height() ); // or something similiar, I forget
    p.rotate(-45); // as suggested in documentation
}

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I found it flickering at runtime. anyone could help me with this problem? since flickering is my only problem with QCanvas.