[OpenSauce]

Summary

Packs ship as folders of dozens of files, and the NAM stage's pick list was a flat list, so every model had to sit loose in the nam folder. This makes the nam folder's directory structure the menu structure.

• Loader (rustortion-core): walks the nam folder recursively. Each model is keyed by its path relative to that folder, without the extension and with / separators on every platform (Pack/Clean). A top-level file keeps its bare stem, so existing presets keep resolving. The cab-from-name guess still reads the file's own name, never the folder.
• Picker (rustortion-ui): replaces pick_list with an iced_aw menu bar with a single root. Each folder fans out sideways into its contents, nesting as deep as the tree goes; loose files sit alongside folders at the same level, sorted together by name (case-insensitive). The selected model is highlighted. The menu stays open until something is clicked, like a pick list.
• Dependency: iced_aw = 0.14.1 with only the menu feature. It depends on the same iced_widget 0.14.2 already in the lockfile, and the plugin build (iced_baseview) compiles with it.

Layout notes

Two iced_aw quirks are worked around and commented in the code:

• The bar lays its root out against an unbounded width, so a Fill root button never gets a size. The root button is sized through responsive.
• The bar right-aligns a root menu whenever the button sits in the right half of the window. The root menu is given the button's width so it hangs straight below it.

Testing

• cargo test --workspace (excluding plugin/xtask): 325 passed.
• New tests: recursive scan produces Folder/Sub/Model keys and leaves top-level stems bare; folder names don't feed the cab-from-name guess; the picker's tree builder groups and sorts keys correctly.
• cargo clippy --all-targets clean on core, ui, standalone; cargo check -p rustortion-plugin clean; cargo fmt --check clean.
• Manually verified in the standalone with a nam folder containing three subfolders and a few loose files: root opens below the button, folders fan out on hover, selection works and the preset keeps the full key.

🤖 Generated with Claude Code

[Copilot]

🔵 Needs a closer look

It introduces a new UI dependency and menu-widget behavior relying on non-obvious runtime workarounds (float-overflow margin, responsive sizing) and affects the plugin build, none of which can be statically verified here.

0 open findings

What changed in this PR

This PR replaces the NAM stage's flat pick_list model picker with a nested, folder-grouped menu so model packs can ship as directory trees instead of loose files. The core loader now walks the nam folder recursively and keys each model by its folder-relative path, while the shared UI builds an iced_aw menu bar whose folders fan out into submenus. This fits the existing standalone + plugin architecture, where both drive the same rustortion-ui GUI.

Changes:

• Loader walks the nam directory recursively, keying models by /-separated relative path (extension dropped), keeping top-level stems bare for backward-compatible preset resolution, and skipping hidden/symlinked directories.
• UI replaces pick_list with a one-root iced_aw MenuBar, grouping keys into a sorted ModelNode tree with selection highlighting and pick-list-like open/close behavior.
• Adds the iced_aw = 0.14.1 dependency (menu feature only) with corresponding Cargo.lock updates.

File	Description
rustortion-core/​src/​nam/​loader.rs	Recursive directory scan with folder-relative keys, symlink/hidden-folder guards, model_key helper, and new tests.
rustortion-ui/​src/​stages/​nam.rs	Replaces pick list with a nested iced_aw menu bar, adds ModelNode tree building/sorting and menu rendering helpers plus tests.
rustortion-ui/​Cargo.toml	Adds iced_aw = 0.14.1 with only the menu feature.
Cargo.lock	Records iced_aw, iced_fonts, iced_fonts_macros and the new dependency edge.

🧠 Review effort: Balanced

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