fix: Axis labels disappearing due to incorrect padding calculation in title filtering

[Enurian]

Description

This fixes issue #2078, #1963
The box that checks if titles should be drawn was calculated incorrectly, not taking different padding on different axis (and rotation) into account. If a "reserved space" property was larger than the height/width, it made the other titles disappear.
The fix is pretty straight forward in my opinion: Take these things into account.

Checklist

• I have followed the Contributor Guide when preparing my PR.
• I have updated/added tests for ALL new/updated/fixed functionality.
• I have updated/added relevant documentation and added dartdoc comments with ///.
• I have updated/added relevant examples in example.

Breaking Change?

• Yes, this PR is a breaking change.
• No, this PR is not a breaking change.

Related Issues

Fixes #2078

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.01%. Comparing base (9f74754) to head (3ee3a12).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2080      +/-   ##
==========================================
+ Coverage   93.00%   93.01%   +0.01%     
==========================================
  Files          50       50              
  Lines        3917     3924       +7     
==========================================
+ Hits         3643     3650       +7     
  Misses        274      274              

Flag	Coverage Δ
flutter	93.01% <100.00%> (+0.01%)	⬆️

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[imaNNeo]

Good catch. Thanks for the contribution.
As I understood, this bug has been happening since we added the rotationQuarterTurns property. right?

Are you able to add a test case for this fix?

[Enurian]

Added a test.
No, I believe this bug was there for more than 2 years according to blame. Rotating (bar) charts just let this become an realistic issue, because you need a relatively short side. Basically every chart and every rotation is/was affected, when the ratio was not 1/1.

edit: By the way, there is a theoretical edge case that I did not test for or fix - if you set a reserved space larger than the (correct) related chart side, exceptions occur. But I guess that is user fault and would result in a stupid (not visible) chart anyways.

[imaNNeo]

Nice, thanks so much!