Quote Originally Posted by wysota View Post
How about using QPainter::setWindow() and QPainter::setViewport()?
Thx for the input. So by hyperlinking through your given links... i read this..

One frequent need for the transformation matrix is when reusing the same drawing code on a variety of paint devices. Without transformations, the results are tightly bound to the resolution of the paint device. Printers have high resolution, e.g. 600 dots per inch, whereas screens often have between 72 and 100 dots per inch.
I should read more QtAssistant. But at the first look it seems like i have to play a lot with qpainter.