Historically, `App::Document::recompute()` ran entirely on the **main**
(GUI) thread and directly emitted `signalBeforeRecompute()`.
* Add-ons like **Assembly3** and others depend on that signal for
setup/teardown hooks before any recompute work begins.
* After offloading `recompute()` into a background worker thread to keep
the UI responsive, calling `signalBeforeRecompute()` directly from the
worker would break thread-affinity rules and silently break
compatibility with those add-ons.
**Solution**
1. **Introduce a generic hook** (`PreRecomputeHook`) in
**App::Document**:
* A `std::function<void()>` that, if set, is invoked at the very
start of `recompute()`.
* Core code stays Qt-free—only knows to call a callback if one
exists.
2. **Wire up the hook in `Gui::Document`**:
* In the GUI wrapper’s constructor, install a hook that calls
`callSignalBeforeRecompute()`.
* `callSignalBeforeRecompute()` uses `QMetaObject::invokeMethod(...,
Qt::BlockingQueuedConnection)` to enqueue `signalBeforeRecompute()` on
the GUI thread and **block** the worker until it completes.
* If already on the GUI thread, it simply calls the signal directly.
3. **Maintain add-on compatibility**:
* From the add-on’s perspective nothing changes—they still receive
`signalBeforeRecompute()` on the main thread before any recompute work.
* Internally, the recompute body now runs on a worker thread,
improving UI responsiveness without breaking existing hooks.
**Result**
* **Recompute** remains fully backward-compatible for add-ons like
Assembly3.
* **UI thread** still handles all GUI-related signaling.
* **Worker thread** performs the actual heavy lifting, unblocked only
once the GUI is primed and all pre-recompute signals have been
delivered.
Currently we can assign quantities to a BIM object, but upon exporting
quantities are not visible in the IFC file.
This was because we didn't have a correct mapping to weight property.
`App::PropertyWeight" basically doesn't exist, so this patch changes it
to `App::PropertyMass`, as it is the same. The incorrect mapping
resulted in a traceback, which in turn resulted in missing a big part of
additional processing for the properties, which resulted in
`writeQuantities` checking for non-existent IfcData in the object.
* FEM: Update post_glyphfilter.py
* FEM: Update TaskPostGlyph.ui
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
---------
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
