Incompatible with PySide 1.2.4

[EricTRocks]

Nodes draw with transparent background.

[OlegBliznuk]

Hi,
it can be related: https://groups.google.com/forum/#!topic/pyqtgraph/J6Hz0IO8fK4
according to my tests, the QGraphicsWIdget is broken under pyside 1.2.4, but works ok with the 1.2.0 build, some kind of regression i think. At least the QGraphicsWIdget's paint method is not called at any circumstances.

[EricTRocks]

Hi @OlegBliznuk. Yes usually I have required 1.2.2. Nice to know its not unknown