During initial scan of application, detect if root access is available
and track it. If user later selects "Click here for ways to fix this".
display a new dialogue that offers to push the layer directly.
If pushing fails, fall back to production dialogue.
Also add a new persistent setting to enable automatic layer pushing.
* In future we could handle async exceptions by storing the exception
information in a std::function derived object (instead of the separate
ExceptionHandling that lives on the stack) and query it out in a new
WaitForInvoke function maybe. Right now we just print the exception
to the output log and abort the callback.
* Dock panels shouldn't have any frame border or anything like that.
* They should have an external margin of 3 pixels at their border,
but then no further margins on the layouts (like sub-controls for
the pipeline state views.
* Toolbars should be Raised & Panel frames. Later we'll replace them
with actual QToolBars to better customise the painting.
* We need to custom paint the SVG at the right devicepixelratio because
Qt seems to be busted at scaling up - nothing I can see causes the
SVG to be rendered at higher than it's default resolution, so you end
up with plain bilinear upscale.
* Since we're doing custom palette swap anyway, it's not much harm to
just render ourselves, as we already basically had a dependency on
QtSvg - just need to add the include files to the dependencies.
* This gives us a consistent baseline to start from and ensures that any
things we don't customise and leave to defaults will still be the same
wherever we are running.
* The idea is tha this style won't change the palette and will just do
some minimal additions/changes to whatever the native style is, to
work around some rough spots.
Cody Northrop