Graphics View Queries

[linuxdev]

Thanks for the reply.

I have enhanced my small application to do much more work.

Now it does the following:

1. it has a background which are nothing but six concentric circles (shown always)

2. An elliptical item is drawn at the outermost position and its position is moved every 10msec around the ellipse in steps of 10deg.

3. I have Zoom feature around the center, also panning is done through scroll option provided by QGraphicsView.

4. An option to remove the Pan.

I have severe time constraints to my application and i need to draw somewhere around 500 items at a time with worst case refresh rate of 30msec.

When i try to pan around using mouse , the refresh rate is dropped...

Can someone please have a look at the source and let me know if there is any serious design flaw? so that it doesnt carry on further in my code...