Merge branch 'master' into krita-testing-wolthera

Add rant why per-shot looks won't work after wasting afternoon on it.

The tl;dr is that OCIO's documentation is extremely vague.

Ref T2337

Fix loading of default gamut warning color.

Always set the color space of the kocolor, kids.

ref T2337

Add adaptation state slider.

This allows you to set whether or not to adapt the white point, that is,
to set the white point to the screen white(full slider) or to convert all whiteson screen to the white point of the profile when using absolute colorimetric
as intent.

This is useful to simulate paper-colour.

Ref T2337

Fix builds on gcc 6

Merge branch 'master' into krita-testing-wolthera

Add option to set default Proofing Options.

These will work for images with no proofing options, so, old loaded images
and new images. With this it is feature complete, and people can start testing.

Ref T2337
Ref T1238

Merge branch 'master' into krita-testing-wolthera

Clean up all the debug messages.

It's... quieter in the terminal now.

Ref T2337

Cleanup: Make projection color a defined tag.

Not sure if this isn't the correct code instead...

Ref T2337

Load embedded proofing profiles if they exist, and add them to the profile registery.

Needs testing for obvious reasons.

Ref T2337

Add embedding of the proofing profile.

This is so that we can later unembed them.

Ref T2337

Load Warning Colors properly from file.

Now the out of gamut warning can be written into file as XML
and loaded from file as XML.

Ref T2337

Fix naming conventions.

I was using gamut warnings/alarms, and softproofing and soft proofing.

The standard is (Out of )Gamut Warnings and Soft Proofing.

Ref T2337

Disable softproofing in floating point spaces.

There's a bunch of little niggling bugs that crop up when soft proofing
in floating point spaces, amongst which the inability of the proofing
mechanism to see floating point values higher than 1.0 fall outside of
the gamut of the color space, let alone recognising whether it can go
inside the gamut of the proofing space.

See also http://ninedegreesbelow.com/bug-reports/soft-proofing-problems.html

For now, it's best to disable softproofing on floating point spaces.
Might need a more official check, though.

Ref 2337

Make views smart enough to track softproof/gamutcheck-state.

Also add a floating message to say when the softproofing or gamutcheck
is turned on in the view. Wording may change.

Ref T2337

Fix Build

Add attempt at saving color to xml.

This fails due to me not being able to load the xml, due object-bonanza.

ref T2337

Intitial saving/loading of config.[unstable]

Works, but might change later.

Refactor the proofing transform system for better caching.

This now makes the transform separately from the actual transforming,
which means it's easier to cache and to update. Softproofing is now
gone from usable to user-friendly.

Still needs saving/loading and little setting-bugs fixed.

ref T2337

Enable Gamut color and proofing intent.

The image now stored proofing intent, and the monitor intent is the general
rendering intent.

This also allows us to set the gamut warning color, however, for updating
you currently need to switch profiles as well. I'll make a seperate
generateSoftProofingTransform function, to cache the transform better, so it's
easier to update.

Ref 2337

Add softproofing section to image properties menu.

Now, the proofing in the image can be changed.

Also fixes that ugly little square problem with the kocoloractionpopup button.

Ref T1238, T2337

Merge remote-tracking branch 'origin/master' into krita-testing-wolthera

Cache the transform unelegantly.

This does cause a significant speed-up, but it's a bit fiddly.
Regardless, the speed-up is enough to make this usable.

Fix softproofing

It's slow again :/

Fix setting softproofing and gamutcheck flags.

Cache the color space engine to make it faster

It doesn't fix everything, but it fixes quite a bit.
Ref T210

Add base implementation softproofing with toggles.

It doesn't really work yet :/

Ref: T210
Ref: T2337

Create the proofing transform

This doesn't use the caching graph stuff, which is too complex
to refactor for now.

Add a per-image proofing settings class

Push work-in-progress proofing

Fix copy-paste error

Add OCIO Look support.

The code is based of that of Blender, as I couldn't figure out how else to
apply looks. The OCIO api wasn't clear about it, nor could I find much information,
but it somewhat works and doesn't crash.

Auditors: rempt, dkazakov
Ref: T210

Add softproofing to the lcms conversion tests

I am not fully sure if I understand the softproofing function, but the alarm works.