Inversion respects painting region.
Inversion respects painting region.


Former-commit-id: 6c107f26e122416ecef79956d1dd224b11021730
Former-commit-id: cfac4c0a019e3009397519ddc417b8815a799029
kobolabs/qt-everywhere-4.8.0,kobolabs/qt-everywhere-4.8.0,kobolabs/qt-everywhere-4.8.0,kobolabs/qt-everywhere-4.8.0,kobolabs/qt-everywhere-4.8.0,kobolabs/qt-everywhere-4.8.0,kobolabs/qt-everywhere-4.8.0,kobolabs/qt-everywhere-4.8.0,kobolabs/qt-everywhere-4.8.0,kobolabs/qt-everywhere-4.8.0