Initialize all variables

6. uninit_member: Non-static class member m_savedSpeedCoeff is not initialized in this constructor nor in any functions that it calls.
7. uninit_member: Non-static class member m_savedSmoothingDistance is not initialized in this constructor nor in any functions that it calls.
8. uninit_member: Non-static class member m_savedUpdateDistance is not initialized in this constructor nor in any functions that it calls.
9. uninit_member: Non-static class member m_lastPaintTime is not initialized in this constructor nor in any functions that it calls.

CID:249020