Scale the Anchor editor according to DPI

[LeafShi1]

Related #13830

Proposed changes

• Update the InitializeComponent method to draw the Anchor Editor using the scaled size instead of hard-coding it.

Customer Impact

• On High DPI environment, Anchor editor in propertyGrid can be scaled well

Regression?

• No

Risk

• Minimal

Screenshots

Before

In 300% DPI:

After

In 300% DPI:

Test methodology

• Manually

Test environment(s)

• .net 10.0.0-rc.1.25454.102

Microsoft Reviewers: Open in CodeFlow

[Copilot]

Pull Request Overview

This PR fixes the DPI scaling issue in the AnchorEditor component by replacing hard-coded pixel values with DPI-scaled equivalents. The Anchor editor in PropertyGrid now properly scales on high DPI environments instead of appearing too small at 300% DPI.

Key changes:

• Replace hard-coded pixel values (10, 30, 40, 60, 90) with DPI-scaled equivalents using ScaleHelper.ScaleToInitialSystemDpi()
• Update all UI element positioning and sizing to use the scaled values

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.12180%. Comparing base (6bce8b5) to head (8b7f313).
⚠️ Report is 29 commits behind head on main.

Additional details and impacted files

@@                 Coverage Diff                 @@
##                main      #13853         +/-   ##
===================================================
+ Coverage   77.10742%   77.12180%   +0.01437%     
===================================================
  Files           3273        3273                 
  Lines         644925      644924          -1     
  Branches       47692       47693          +1     
===================================================
+ Hits          497285      497377         +92     
+ Misses        143967      143873         -94     
- Partials        3673        3674          +1     

Flag	Coverage Δ
Debug	77.12180% <100.00000%> (+0.01437%)	⬆️
integration	18.99497% <100.00000%> (+0.00426%)	⬆️
production	51.95803% <100.00000%> (+0.03030%)	⬆️
test	97.41256% <ø> (+0.00007%)	⬆️
unit	49.37407% <100.00000%> (+0.03436%)	⬆️

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[ricardobossan]

All LGTM!

[KlausLoeffelmann]

Looks good to me!

Do we need to bring this changes over to the OOP Designer?

[LeafShi1]

Looks good to me!

Do we need to bring this changes over to the OOP Designer?

Yes, I have submitted a PR https://github.com/microsoft/winforms-designer/pull/6459 in OOP designer, please review it.