Windows XP and QGraphicsView/Scene

[wysota]

I guess you should test the app on a real XP box, after all, emulators are just emulators.

[maxpower]

Okay, here is an example. It is sort of different in that the items don't even show up if you switch windows. I tried this on a real XP box with the same results.

Thanks
mAx

[Corran]

Looking at your problem, I think it may well be related to mine (Possible QGraphicsView/Scene bug). I found that the items would only show up if the window was resized.
It's possible that it is a bug in a recent Qt version. I've had the problem on Qt 4.2.2 and KDE's svn qt-copy both under Linux. What versions were your executables built with?

[Bitto]

I think there's a bug in this GraphicsTest example. It doesn't add any items to the scene. The view is basically visualizing... nothing :-).

[Bitto]

My bad, I misread the example, items are indeed added.

The bug is that the items are added at positions like -4200000, 536, but the top-left corner of the scene is set to (0, 0). The defOffset variable, which is added to all X coordinates, seems to be uninitialized. Removing this variable, or setting it to 0, gives me rects and diamonds.