This will be used by a new event filter, added only when running as a Wayland
client, to force creating the obs_display instance even when not exposed.
When a window is made invisible, then visible again, the
obs_display is reused. Turns out, QT destroys the wl_surface
associated with the previewer on Wayland. However, the EGL
surface created on top of this wl_surface is not, and any
attempt to attach a new buffer to it will crash OBS.
Destroy the obs_display when becoming invisible, and when
running as a Wayland client. Also nullify the display
variable on destruction, to avoid subclasses double-freeing
the obs display.
AllDockWidgetFeatures is now deprecated. Use underlying values instead.
Use default QFlags constructor instead of nullptr/0.
Use QWheelEvent::angleDelta() in place of orientation() and delta(), and
position() in place of x() and y().
Code submissions have continually suffered from formatting
inconsistencies that constantly have to be addressed. Using
clang-format simplifies this by making code formatting more consistent,
and allows automation of the code formatting so that maintainers can
focus more on the code itself instead of code formatting.
If custom theme for obs UI has no record about background custom
property in the qss file, then application can set random color per
display initialization. This fixes this issue.
