Add 3-way UI mode switch: Legacy / NewSlate / UMG

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Introduce a switchable UI stack so the original Slate widget stays available
as a fallback while the new CodeDesign-inspired redesign and a future UMG
Widget Blueprint implementation coexist.

- PS_Editor_MainWidget_Legacy: pre-refactor Slate widget, restored from HEAD
- PS_Editor_MainWidget: refactored floating-HUD Slate widget with style asset,
  9-slice panels/buttons, rounded brushes, icon pack, Play/Pause/Stop icons,
  spec-aligned palette and radii, File dropdown, outliner per-item icons,
  command palette
- PS_Editor_MainWidget_UMG: abstract base class exposing a Blueprint-callable
  API (SetTransformMode, SaveScenario, Simulate, Selection...) and delegates
  (OnToolChanged, OnSelectionChanged...) so a WBP deriving from it can drive
  the editor end-to-end
- APS_Editor_HUD: UIMode enum + UMGWidgetClass soft ref, picks the right
  widget at BeginPlay; separate typed accessors for each flavor

Adds UI style system (UPS_Editor_UIStyleAsset DataAsset + FPS_Editor_UIStyle
helper) with runtime PNG loading for icons and 9-slice brushes from
Content/UI/icons/ and Content/UI/unreal_9slice/.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

...

This commit is contained in:

j.foucher

2026-04-18 19:57:04 +02:00

parent 4181801635

commit bdceecbe56

241 changed files with 7144 additions and 458 deletions

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