https://bugs.kde.org/show_bug.cgi?id=417404

            Bug ID: 417404
           Summary: Zoom tool behaves unpredictably when free rotation is
                    active
           Product: krita
           Version: 4.2.8
          Platform: MS Windows
                OS: MS Windows
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: Tools
          Assignee: krita-bugs-n...@kde.org
          Reporter: jesse0...@gmail.com
  Target Milestone: ---

SUMMARY

The zoom tool behaves unpredictably when free rotation is active. 

(PS: I just started using Krita. I'm a programmer trying to learn some drawing
skills.)


STEPS TO REPRODUCE

1. Use Shift+Space and drag the mouse around the center of the screen to freely
rotate the view of the image (very useful for working from different
perspectives and for when it's easier to draw a line well from one angle
relative to your hand than another etc).

2. Try to use the zoom tool to highlight a box of the image that you'd like to
zoom into to make it easier to work on some part of the image.

3. The zoom will jump to some (seemingly) unpredictable part of the image and
not to the area you actually highlighted with the zoom tool. 

There's also a problem with the zoom box being oriented relative to the
non-rotated image, whereas I'd think most users who are trying to use the zoom
box tool while rotated are trying to rotate to an area that's relative to their
current rotated perspective and not relative to the absolute one, since having
it be relative to the current rotation is far more useful. 

This seems like a really essential aspect of having a good workflow, especially
on smaller tablet screens. It would greatly improve the workflow if it was
fixed. The free rotation tool could also perhaps benefit from being more easily
discoverable instead of only working by using hotkeys (apparently).


OBSERVED RESULT

The zoom jumps around in strange (seemingly) unpredictable ways when the view
is currently rotated.


EXPECTED RESULT

The zoom box should instead be relative to the current rotation and should
behave as most users would expect it to.


SOFTWARE/OS VERSIONS
Windows: Windows 10 64-bit
(no others tested)


ADDITIONAL INFORMATION

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