Bug 407398

Summary:	Alt + Click on a layer does not display selected layer only
Product:	[Applications] krita	Reporter:	Rayko <necromancer007>
Component:	Layers/Vector	Assignee:	Krita Bugs <krita-bugs-null>
Status:	RESOLVED INTENTIONAL
Severity:	normal	CC:	ghevan, griffinvalley
Priority:	NOR
Version First Reported In:	4.2.0-alpha
Target Milestone:	---
Platform:	Mint (Ubuntu based)
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Rayko 2019-05-10 16:15:08 UTC

SUMMARY
Alt + Click on a layer does not display selected layer only.

STEPS TO REPRODUCE
1. Left click the layer with Alt key pressed

OBSERVED RESULT
Nothing changes.

EXPECTED RESULT
The layer of choice becomes the only visible layer.

ADDITIONAL INFORMATION
My guess is the new 'Select Opaque' gesture could break it, since it can uses the gesture Ctrl+Alt+Left click.

Comment 1 wolthera 2019-05-10 16:16:17 UTC

Yes, but these new gestures only work on the *thumbnail*, so there's plenty of other areas you can 'alt+click' on.

Comment 2 Rayko 2019-05-10 16:19:24 UTC

(In reply to wolthera from comment #1)
> Yes, but these new gestures only work on the *thumbnail*, so there's plenty
> of other areas you can 'alt+click' on.

You are right. Why the functionality was changed though? Is it not possible to differentiate between Alt+Ctrl+... and Alt+... pressed?

Comment 3 vanyossi 2019-05-10 20:42:30 UTC

It is possible to differentiate and we do differentiate.

The thing is:

Selection operations are done clicking on the Thumbnail, alt + Ctrl + click happens to be "remove opaque from selection"
More info: https://docs.krita.org/en/user_manual/selections.html#selection-from-layer-transparency


If you click outside the thumbnail but not in the eye you get:

Alt + Click: Isoltate layer
Alt + Ctrl + Click: nothing happens.

Comment 4 wolthera 2019-05-11 00:16:12 UTC

I recall we specifically decided that it was the thumbnail that would be the differentiation, because it is easier to point at a non-thumbnail part of the layer than it is to reliably differentiate between the different modifier combinations(as you are always looking at the thumbnail, but might not see whether your hands are doing the wrong operation).

So in short, we thought this was easier on the user than to rely only on different keyboard shortcuts alone.

I am sorry, this is by design.