# Description
Break the recursive include dependency by moving GUI_App.hpp from
HMS.hpp into HMS.cpp. Add the required standard headers and use explicit
std/nlohmann types to remove reliance on transitive includes.
This prevents recursive header inclusion while preserving HMS
functionality.
# Screenshots/Recordings/Graphs
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## Tests
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[How to Download Pull Requests Artifacts for
Testing](https://www.orcaslicer.com/wiki/how_to_download_pr_artifacts)
# Description
This PR enables building OrcaSlicer on Windows with the **clang-cl
(LLVM)**
toolchain and the **Ninja** generator, in addition to the existing MSVC
path.
Clang is already supported on Linux with this codebase, so this extends
that
support to Windows.
The changes fall into three categories. All are either no-ops on the
existing
MSVC/Visual Studio path or Windows/clang-cl-specific, so the standard
build is
not affected.
### 1. C++ conformance fixes
clang-cl is stricter than MSVC and rejects several constructs that
cl.exe
silently accepted. Each of these is non-conforming code that MSVC
tolerated:
* **Explicit template instantiation in `BoundingBox.cpp`** — clang-cl
does not
instantiate `BoundingBoxBase<Point, Points>::construct` through the same
transitive path MSVC uses; added the explicit instantiation.
* **Eigen cast materialization in `AABBTreeLines.hpp`** — `.cast<T>()`
returns a
lazy `CwiseUnaryOp`, not a concrete `Matrix`; materialized it before
passing to
`distance_to_squared`, which expects a concrete type.
* **`LabelItemType` underlying type in `PresetComboBoxes.hpp`** — gave
the enum
the same `std::size_t` underlying type as `Marker` to resolve a
narrowing
conversion in a switch.
* **`T2A_` cast in `BaseException.cpp`** — explicit `static_cast<const
char*>` on
the ATL conversion helper result.
* **Wide string literals in `GUI_App.cpp`** — used `L""` literals where
concatenated with a `std::wstring` (`url_prefix`).
### 2. Build system / dependencies
* **Exclude clang-cl from MSVC-only CMake guards** — `if(MSVC)` is true
for
clang-cl, so blocks applying cl.exe-only flags now exclude Clang.
* **Disable TBB LTCG** — oneTBB enables MSVC IPO/LTCG by default,
emitting
proprietary `/GL` bitcode objects that `lld-link` cannot consume.
Disabling IPO
produces native COFF, linkable by both `link.exe` and `lld-link`. TBB is
threading infrastructure, so the runtime impact of disabling LTCG is
negligible.
* **wxWidgets target path** — clang-cl uses the MSVC frontend variant on
Windows
but reports compiler id `Clang`, so wxWidgets looked under
`clang_x64_lib`
instead of the `vc_x64_lib` layout the deps are built with.
### 3. Ninja generator support
* **Runtime DLL copy** — the DLL copy step was nested under
`CMAKE_CONFIGURATION_TYPES` (multi-config only), so single-config Ninja
skipped
copying OCCT/GMP/MPFR/WebView2/freetype DLLs next to the executable. Now
runs
for both generator styles, guarded by `if(WIN32)`.
* **`build_release_vs.bat` Ninja target** — `ALL_BUILD` is a Visual
Studio
target; Ninja uses `all`. The script failed with
`ninja: error: unknown target 'ALL_BUILD'` when invoked with `-x`.
## Tests
Built from a clean checkout on Windows with:
* clang-cl 22 (LLVM toolchain bundled with Visual Studio 18)
* Ninja Multi-Config generator
* lld-link as the linker
The full build (deps + slicer) compiles, `OrcaSlicer.dll` links with
`lld-link`,
and `orca-slicer.exe` runs. Verified end-to-end by loading a model,
slicing it,
and generating valid G-code (screenshot below).
The existing MSVC / Visual Studio build path is unaffected — all changes
are
guarded by compiler/generator/platform checks or are conformance fixes
that
compile identically under MSVC.
# Screenshots
<img width="1919" height="1079" alt="image"
src="https://github.com/user-attachments/assets/02082437-db36-4696-a91a-d9acf57d4a52"
/>
Selecting the web Device tab loaded the printer's web UI from the selected discovered machine
when the preset carried no host. That arm was lost merging main into this branch — two of the
three Plater.cpp hunks from #15134 survived, this one did not — leaving the tab blank, since
PrinterWebView starts on an empty URL and nothing else navigates it.
In printer-agents mode the legacy web page was appended under Notebook::PAGE_MONITOR, which
resolves to the same "monitor" id as the native Device tab. FindPageByName returns the first
match, so PluginPages::relayout() — which saves the selection by name and restores it after
rebuilding the tab strip — moved the user off the web tab onto the native one. The tab also
disagreed with its own label, being created as "Device (legacy)" and renamed to "Device (Web)"
on the next show_device() call.
Per material slot, the Publish dialog can now embed the entire filament preset ("Full Publish") and require a curated filament type and/or colour:
- On export, full-publish vector options are masked to the author's slot so unrelated slot data never leaks into the published file.
- On load, slots are matched by the published type: a match keeps the receiver's material (full dumps ignored, partial keys applied); a mismatch replaces the slot with the first visible same-type library filament, falling back to a temporary embedded preset or skipped keys when none exists. Required colours apply regardless of the type match.
- The receiver's slot count grows only to the highest published slot.
- Published 3MFs load as a new project: the file's path is not adopted as the project filename, published metadata is stripped from the model, and the file is added to recent projects.
- Notifications list replaced slots, and the edited filament preset is refreshed so applied values surface in the GUI.
- Dialog: "Full Publish" toggle replaces the material opt-in and select-all headers; new Color/Type requirement rows with swatches.
- Add Ctrl+Shift+E shortcut for the Publish dialog (menu, key handling, and the keyboard shortcuts dialog).
- Tests for export slot masking, metadata round-trip, replacement semantics, slot growth, and skipped-key reporting.
* Add /bot merge for delegated vendor profile maintainers
Vendor profile PRs no longer need a maintainer with repository write access: an
account listed in the FOLDER_MERGERS variable can squash-merge a PR confined to
the folders it owns by commenting /bot merge on it. Anything reaching outside
that grant, targeting a branch other than main or release/*, or missing a green
Check profiles run is declined with a comment naming the offending files.
Grants live in the merge-delegation environment, so only an admin can change who
may merge, and MERGE_BOT_DRY_RUN stops all merging without a code change.
Check profiles now also runs on release/* pull requests; nothing else changes
for existing contributors.
* Add profile version bump to the code review checklist
Without the bump in resources/profiles/<Vendor>.json, a preset change never
reaches existing installs over the air.
Lam Wei Lun