Vector graphics in Qt4

[Abayo]

Hi @ all!

I searched for a while now, but couldn´t find an answer to my problem.

I want to use vector graphics in a GUI. At first I tried to use QImage, but if I use the scaled() function my picture looks really bad..
I read now that there is a SVG format for vector graphics or (and?) I could use QPainter but I cannot see the connection.

Hopefully you all could give me a hint at using vector graphics

For the GUI I use a QGraphicsView with Scene where I put added some QGraphicsObjects classes I wrote myself.
I want to resize, transform, overlap different images to show some infos on the screen (like rotate an arrow over another background image).
The vector graphics are in a png format.

I hope it´s understandable what I mean (I am not so good in explaining myself, so sorry beforehand )

[wysota]

The vector graphics are in a png format.

No, they are not. PNG is a raster format, not a vector one.