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Improve Handling of ConfigureNotify events #688

Open uli42 opened 6 years ago

uli42 commented 6 years ago

According to ICCCM ConfigureNotify events need special treatment reagrding window position, see https://tronche.com/gui/x/icccm/sec-4.html#WM_NORMAL_HINTS

Our code does not apply this special treatment.

Also, in HandleConfigureNotifyEvent we have a loop that consumes all outstanding ConfigureNotify events (which is/was an optimization for window resizing where we get lots of ConfigureNotify events while the user is still resizing the window). Only the latest event will be checked for a new window position. But if the last event is NOT a synthetic one (send_event is 0) we completely miss storing any position changes.

uli42 commented 6 years ago

The second part is fixed via f9bae755424cc413707e9657c8baf84a6cd8effe