subagent transcript

session 17f09f89 · workflow wf_4e894f41
← 17f09f89 · archive
delegated task
You are working on the FreeCAD -> WebAssembly port. Ground EVERYTHING in the real code; do not guess. - Source tree: /home/magik6k/lcad-wasm/freecad-p
▸ Magik
You are working on the FreeCAD -> WebAssembly port. Ground EVERYTHING in the real code; do not guess. - Source tree: /home/magik6k/lcad-wasm/freecad-port/FreeCAD (git branch wasm-port). CMake build dir (out-of-source, already configured): /opt/toolchains/src/freecad-gui-build — read /opt/toolchains/src/freecad-gui-build/CMakeCache.txt for BUILD_* flags and dep paths. Build binary: bin/FreeCAD.wasm (~180 MB). - Toolchain: emscripten, ASYNCIFY + JS exceptions (-fexceptions), SINGLE-THREADED (no pthreads). Static CPython 3.14 + static Qt 6.11 (wasm) + static OCCT + static Coin3D. Everything is statically linked; there is NO dlopen — Python C-extension modules are registered statically via PyImport_AppendInittab in the generated file src/Main/WasmInittab.cpp / WasmInittabGui.cpp (see also freecadWasmRegisterInittab in src/Main/MainGui.cpp). - CRITICAL wasm constraints you MUST check for and design around: (1) THREADING HANGS: any std::thread ctor / std::async(default or async policy) / QThreadPool / QtConcurrent / QThread worker HANGS or throws (no pthreads). Fix pattern: force synchronous/deferred on __EMSCRIPTEN__ (e.g. std::launch::deferred), or #ifndef FC_OS_WASM guard the worker and run inline. Example already in-tree: Mod/Sketcher/App/planegcs/GCS.cpp forced std::launch::deferred; App/Application.cpp guards _recomputeThread with #ifndef FC_OS_WASM; Gui/ProgressBar.cpp skips qApp->processEvents() on __EMSCRIPTEN__. (2) MODAL DIALOGS / NESTED EVENT LOOPS: QDialog::exec()/QMessageBox::exec()/QEventLoop::exec() may deadlock under asyncify when driven from outside the main loop. Task-panel (docked, non-modal) dialogs are preferred. (3) Reentrant ccalls from JS during asyncify suspend corrupt state — a QTimer command-pump (/fc-cmd.py) exists for JS->Python. QtWebEngine has NO wasm port (Web workbench / in-app help / real Start page can't use it). (4) Wasm guards used in-tree: __EMSCRIPTEN__ (compiler-provided) and FC_OS_WASM (FreeCAD-defined) — both are defined on wasm. - Built modules today: Part, Sketcher, Material, Start (+ kernel). Everything else is OFF (see BUILD_* in CMakeCache). - PySide/shiboken: FREECAD_USE_PYSIDE=OFF, FREECAD_USE_SHIBOKEN=OFF, PySide6_DIR/Shiboken6_DIR NOTFOUND. Python 'PySide'/'shiboken6' import fails at runtime ("Cannot load shiboken6"). Many workbenches (Draft, BIM, most task dialogs) are Python+PySide and cannot function without it. DELIVERABLES — do BOTH: 1) Write a thorough, concrete, ready-to-apply plan to /home/magik6k/lcad-wasm/porting/<SLUG>/plan.md — include: exact CMake flags/edits, exact source edits (file + before/after or unified-diff snippets precise enough to apply), any NEW files (full contents), external-dependency build recipes (how to build each dep for this emscripten/asyncify toolchain), a threading-hazard list (grep the real files, give file:line + the exact construct + the exact fix), a modal-dialog-hazard list, the PyImport_AppendInittab lines to add, an ordered step list, and an effort/risk estimate. Put any patch files or new-file contents as separate files in that dir too. 2) Return the structured summary (the schema). Keep summary fields concise; the depth goes in plan.md. Your returned text IS the structured object. Be exhaustive and correct — token cost is not a concern. Verify claims against the actual files (use grep/read). If a dependency has no known wasm port, say so plainly and estimate the porting effort. === YOUR SCOPE: Enable Spreadsheet + Surface modules (slug: spreadsheet-surface) === BUILD_SPREADSHEET and BUILD_SURFACE are OFF. For EACH: deps (Surface needs Part/OCCT; Spreadsheet is fairly standalone), cmake flags, threading/modal audit, inittab lines, PySide dependency, and any wasm-incompatible code. Keep them clearly separated in plan.md. Write your full plan + any patch/new-file contents under /home/magik6k/lcad-wasm/porting/spreadsheet-surface/ (create the dir; plan.md is required). Then return the structured summary with deliverableFile=/home/magik6k/lcad-wasm/porting/spreadsheet-surface/plan.md.
Fable
thinking
I'm starting by examining the module structure for Spreadsheet and Surface, looking at the source tree and CMake configuration to understand how they're organized.
Fable
⚙ Bash {"command": "git branch 2>/dev/null | head; echo \"---MODS---\"; ls src/Mod/Spreadsheet src/Mod/Surface 2>/dev/null; echo \"---SPREADSHEET App---\"; ls src/Mod/Spreadsheet/App 2>/dev/null; echo \"---SPREADSHEET Gui---\"; ls src/Mod/Spreadsh…
tool result
  main
* wasm-port
---MODS---
src/Mod/Spreadsheet:
App
CMakeLists.txt
Gui
Init.py
InitGui.py
Resources
SpreadsheetGlobal.h
TestSpreadsheet.py
TestSpreadsheetGui.py
importXLSX.py
spreadsheet.dox
test_importXLSX.py

src/Mod/Surface:
App
CMakeLists.txt
Gui
Init.py
InitGui.py
Surface.dox
SurfaceGlobal.h
SurfaceTests
TestSurfaceApp.py
---SPREADSHEET App---
AppSpreadsheet.cpp
CMakeLists.txt
Cell.cpp
Cell.h
DisplayUnit.h
PreCompiled.h
PropertyColumnWidths.cpp
PropertyColumnWidths.h
PropertyColumnWidths  …[truncated]
Fable
⚙ Bash {"command": "grep -E \"BUILD_SPREADSHEET|BUILD_SURFACE|BUILD_PART|BUILD_SKETCHER|FREECAD_USE_PYSIDE|FREECAD_USE_SHIBOKEN|BUILD_MATERIAL|BUILD_START\" /opt/toolchains/src/freecad-gui-build/CMakeCache.txt", "description": "Read relevant BUILD…
tool result
BUILD_MATERIAL:BOOL=ON
BUILD_MATERIAL_EXTERNAL:BOOL=OFF
BUILD_PART:BOOL=ON
BUILD_PART_DESIGN:BOOL=OFF
BUILD_SKETCHER:BOOL=ON
BUILD_SPREADSHEET:BOOL=OFF
BUILD_START:BOOL=ON
BUILD_SURFACE:BOOL=OFF
FREECAD_USE_PYSIDE:BOOL=OFF
FREECAD_USE_SHIBOKEN:BOOL=OFF
Fable
thinking
I need to look at how the CMakeLists files are structured for both modules and trace how the BUILD_SPREADSHEET and BUILD_SURFACE flags are connected at the top level.
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; echo \"=== top-level BUILD_SPREADSHEET/SURFACE ===\"; grep -rn \"BUILD_SPREADSHEET\\|BUILD_SURFACE\" CMakeLists.txt src/Mod/CMakeLists.txt cMake/ 2>/dev/null; echo \"=== Spreadsh…
tool result
=== top-level BUILD_SPREADSHEET/SURFACE ===
src/Mod/CMakeLists.txt:101:if(BUILD_SPREADSHEET)
src/Mod/CMakeLists.txt:103:endif(BUILD_SPREADSHEET)
src/Mod/CMakeLists.txt:109:if(BUILD_SURFACE)
src/Mod/CMakeLists.txt:111:endif(BUILD_SURFACE)
cMake/FreeCAD_Helpers/CheckInterModuleDependencies.cmake:20:    REQUIRES_MODS(BUILD_ASSEMBLY           BUILD_PART BUILD_PART_DESIGN BUILD_SPREADSHEET)
cMake/FreeCAD_Helpers/CheckInterModuleDependencies.cmake:39:    REQUIRES_MODS(BUILD_SPREADSHEET        BUILD_DR  …[truncated]
Fable
thinking
I'm noticing that BUILD_SPREADSHEET has a module dependency on BUILD_DRAFT, which is interesting because Draft is a Python+PySide workbench that requires PySide to function. This REQUIRES_MODS check is a CMake configuration constraint, so I need to look more carefully at how these dependencies are defined in the CheckInterModuleDependencies file. The thinking cuts off mid-way through another REQUIRES_MODS entry for BUILD_SURFACE, so there's more to examine here.
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; sed -n '1,80p' cMake/FreeCAD_Helpers/CheckInterModuleDependencies.cmake", "description": "Read inter-module dependency checker"}
tool result
macro(CheckInterModuleDependencies)
    # ==============================================================================
    #inter-module dependencies

    # Takes a dependent module followed by a variable-length list of prerequisite
    # modules.  Warns if any of the prerequisite modules are disabled.
    function(REQUIRES_MODS dependent)
        if(${dependent})
            foreach(prerequisite IN LISTS ARGN)
                if(NOT ${prerequisite})
                    message(SEND_ERROR "${d  …[truncated]
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; echo \"=== Spreadsheet App CMakeLists ===\"; cat src/Mod/Spreadsheet/App/CMakeLists.txt", "description": "Read Spreadsheet App CMakeLists"}
tool result
=== Spreadsheet App CMakeLists ===
# SPDX-License-Identifier: LGPL-2.1-or-later

if(WIN32)
    add_definitions(-DFCAppSpreadsheet)
endif(WIN32)

set(Spreadsheet_LIBS
    FreeCADApp
)

set(Spreadsheet_SRCS
    Cell.cpp
    Cell.h
    DisplayUnit.h
    PreCompiled.h
    PropertySheet.cpp
    PropertySheet.h
    PropertySheet.pyi
    PropertySheetPyImp.cpp
    PropertyColumnWidths.cpp
    PropertyColumnWidths.h
    PropertyColumnWidths.pyi
    PropertyColumnWidthsPyImp.cpp
    …[truncated]
Fable
thinking
I'm noticing a configuration dependency issue where the Spreadsheet module requires Draft to be enabled, but Draft is currently off since it's a Python+PySide component. This creates a build-time error, though it seems backwards since Draft actually depends on Spreadsheet, not the other way around.

The solution is to patch the CheckInterModuleDependencies.cmake file to remove this BUILD_DRAFT requirement for the wasm build — it's safe to do since the C++ Spreadsheet module only links against FreeCADApp, not Draft. Now I need to examine the GUI CMakeLists files, shared libraries, and how the module initialization works in the inittab system to understand how to properly integrate Spreadsheet  …
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; echo \"=== WasmInittab.cpp ===\"; cat src/Main/WasmInittab.cpp 2>/dev/null; echo \"=== WasmInittabGui.cpp ===\"; cat src/Main/WasmInittabGui.cpp 2>/dev/null", "description": "Rea…
tool result
Exit code 1
=== WasmInittab.cpp ===
=== WasmInittabGui.cpp ===
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; find . -name \"WasmInittab*\" 2>/dev/null; echo \"---in build dir---\"; find /opt/toolchains/src/freecad-gui-build -name \"WasmInittab*\" 2>/dev/null; echo \"--- grep AppendInitt…
tool result
---in build dir---
/opt/toolchains/src/freecad-gui-build/src/Main/WasmInittabGui.cpp
/opt/toolchains/src/freecad-gui-build/src/Main/WasmInittab.cpp
/opt/toolchains/src/freecad-gui-build/src/Main/CMakeFiles/FreeCADMain.dir/WasmInittabGui.cpp.o
--- grep AppendInittab ---
src/Main/MainCmd.cpp:53:// Defined in the generated WasmInittab.cpp; registers the statically linked
src/Main/MainCmd.cpp:55:void freecadWasmRegisterInittab();
src/Main/MainCmd.cpp:81:    freecadWasmRegisterInittab();
src/Main/  …[truncated]
Fable
thinking
I need to look at the CMakeLists.txt file in src/Main to see how the module list gets passed to generate the inittab.
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; sed -n '30,140p' src/Main/CMakeLists.txt", "description": "Read Main CMakeLists inittab generation"}
tool result
        list(APPEND FREECAD_WASM_PY_MODULES Materials)
        list(APPEND FREECAD_WASM_PY_GUI_MODULES MatGui)
    endif()
    if(BUILD_MEASURE)
        list(APPEND FREECAD_WASM_PY_MODULES Measure)
        list(APPEND FREECAD_WASM_PY_GUI_MODULES MeasureGui)
    endif()
    if(BUILD_START)
        list(APPEND FREECAD_WASM_PY_GUI_MODULES StartGui)
    endif()
    if(NOT BUILD_GUI)
        set(FREECAD_WASM_PY_GUI_MODULES "")
    endif()

    function(freecad_wasm_generate_inittab outfile)
        s  …[truncated]
Fable
⚙ Bash {"command": "cat /opt/toolchains/src/freecad-gui-build/src/Main/WasmInittab.cpp /opt/toolchains/src/freecad-gui-build/src/Main/WasmInittabGui.cpp", "description": "Read generated inittab content"}
tool result
// Generated by src/Main/CMakeLists.txt (wasm port)
#include <Python.h>
extern "C" PyObject* PyInit_Part();
extern "C" PyObject* PyInit_Sketcher();
extern "C" PyObject* PyInit_Materials();
void freecadWasmRegisterInittab()
{
    PyImport_AppendInittab("Part", PyInit_Part);
    PyImport_AppendInittab("Sketcher", PyInit_Sketcher);
    PyImport_AppendInittab("Materials", PyInit_Materials);
}
// Generated by src/Main/CMakeLists.txt (wasm port)
#include <Python.h>
extern "C" PyObject* PyInit_Part();
  …[truncated]
Fable
thinking
I need to check the beginning of the CMakeLists file to see how the FREECAD_WASM_PY_MODULES and FREECAD_WASM_PY_GUI_MODULES lists are populated, since the inittab gets auto-generated from those, and I need to add Spreadsheet and Surface to them.
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; sed -n '1,32p' src/Main/CMakeLists.txt", "description": "Read start of Main CMakeLists module list"}
tool result
# SPDX-License-Identifier: LGPL-2.1-or-later

configure_file(freecad.rc.cmake ${CMAKE_CURRENT_BINARY_DIR}/freecad.rc)
configure_file(freecadCmd.rc.cmake ${CMAKE_CURRENT_BINARY_DIR}/freecadCmd.rc)
file(COPY icon.ico DESTINATION ${CMAKE_CURRENT_BINARY_DIR})


if(EMSCRIPTEN)
    # Python extension modules are linked statically into the executables and
    # must be registered on the interpreter's inittab before Py_Initialize().
    set(FREECAD_WASM_PY_MODULES "")
    set(FREECAD_WASM_PY_GUI_MODULES  …[truncated]
Fable
thinking
I see that Spreadsheet is already connected in the inittab generator, so now I need to verify whether Surface has the same wiring set up.
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; grep -n \"Surface\\|SURFACE\" src/Main/CMakeLists.txt", "description": "Check if Surface wired in Main CMakeLists"}
tool result
(Bash completed with no output)
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; echo \"=== Surface App CMakeLists ===\"; cat src/Mod/Surface/App/CMakeLists.txt; echo; echo \"=== Surface Gui CMakeLists (head) ===\"; sed -n '1,80p' src/Mod/Surface/Gui/CMakeLis…
tool result
=== Surface App CMakeLists ===
# SPDX-License-Identifier: LGPL-2.1-or-later

file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/Blending)

generate_from_py(Blending/BlendPoint)
generate_from_py(Blending/BlendCurve)

set(Surface_LIBS
  FreeCADApp
  Part
)

# BlendPoint Wrapper
SET(BlendingPy_SRCS
  Blending/BlendPoint.pyi
  Blending/BlendPointPyImp.cpp
  Blending/BlendCurve.pyi
  Blending/BlendCurvePyImp.cpp
)
SOURCE_GROUP("Blending" FILES ${BlendingPy_SRCS})

SET(Blending_SRCS
  Blending/FeatureBle  …[truncated]
Fable
thinking
Surface needs to be wired into the main CMakeLists inittab generator, unlike Spreadsheet which is already integrated. Now I'm going to audit both modules for threading and modal hazards by searching for threading primitives like std::thread and async patterns, along with Qt dialog and event loop constructs.
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; echo \"=== THREADING: Spreadsheet ===\"; grep -rn \"std::thread\\|std::async\\|QtConcurrent\\|QThreadPool\\|QThread\\|std::future\\|std::launch\\|QFuture\" src/Mod/Spreadsheet/ 2…
tool result
=== THREADING: Spreadsheet ===
=== THREADING: Surface ===
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; echo \"=== MODAL: Spreadsheet ===\"; grep -rn \"\\.exec()\\|->exec()\\|QMessageBox\\|QDialog\\|QEventLoop\\|QInputDialog\\|QFileDialog\\|getOpenFileName\\|getSaveFileName\\|QColo…
tool result
=== MODAL: Spreadsheet ===
src/Mod/Spreadsheet/Gui/DlgBindSheet.ui:4: <widget class="QDialog" name="DlgBindSheet">
src/Mod/Spreadsheet/Gui/DlgSheetConf.ui:4: <widget class="QDialog" name="DlgSheetConf">
src/Mod/Spreadsheet/Gui/DlgSheetConf.h:28:#include <QDialog>
src/Mod/Spreadsheet/Gui/DlgSheetConf.h:38:class DlgSheetConf: public QDialog
src/Mod/Spreadsheet/Gui/DlgSheetConf.cpp:26:#include <QMessageBox>
src/Mod/Spreadsheet/Gui/DlgSheetConf.cpp:43:    : QDialog(parent)
src/Mod/Spreadsheet/Gui/Dl  …[truncated]
Fable
thinking
The Surface module looks clean from a threading perspective—it uses Task panels through TaskDialog with standard buttons, which is WASM-compatible. The only modal usage is QMessageBox::warning for error reporting, which technically calls exec internally and could deadlock under asyncify, though these are just error paths.

Spreadsheet has more modal dialogs scattered throughout—exec calls in Command.cpp, SheetTableView, SpreadsheetView, plus QInputDialog and a nested QEventLoop in the color picker. The key insight is that all of these are triggered from user actions in the main event loop, so they should work fine under asyncify since Qt's synchronous exec can suspend. The real problem cases  …
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; echo \"=== Spreadsheet Init.py imports ===\"; grep -n \"import\\|PySide\\|FreeCADGui\" src/Mod/Spreadsheet/Init.py src/Mod/Spreadsheet/InitGui.py; echo \"=== importXLSX.py import…
tool result
=== Spreadsheet Init.py imports ===
src/Mod/Spreadsheet/Init.py:40:App.addImportType("Excel spreadsheet (*.xlsx *.XLSX)", "importXLSX")
src/Mod/Spreadsheet/InitGui.py:45:        import SpreadsheetGui
=== importXLSX.py imports ===
25:__title__ = "FreeCAD Spreadsheet Workbench - XLSX importer"
30:This library imports an Excel-XLSX-file into FreeCAD.
47:- strings are imported
51:- units are not imported
56:import zipfile
57:import xml.dom.minidom
58:import FreeCAD as App
61:    import FreeCADGui
=  …[truncated]
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; sed -n '595,655p' src/Mod/Spreadsheet/Gui/qtcolorpicker.cpp", "description": "Read qtcolorpicker nested event loop"}
tool result
}

/*! \internal

*/
void ColorPickerPopup::exec()
{
    grid->show();

    QEventLoop e;
    eventLoop = &e;
    (void) e.exec();
    eventLoop = nullptr;
}

/*! \internal

    If there is an item whole color is equal to \a col, returns a
    pointer to this item; otherwise returns 0.
*/
ColorPickerItem * ColorPickerPopup::find(const QColor & col) const
{
    return grid->find(col);
}

/*! \internal

    Returns the color at \a index in the grid.
*/
QColor ColorPickerPopup::color(int index) con  …[truncated]
Fable
thinking
These workbenches are pure C++ with Python bindings, so they don't import PySide in their initialization—they only load the compiled modules like SpreadsheetGui and Surface. The XLSX import script is similarly lightweight, relying just on standard library tools like zipfile and xml.dom.minidom rather than external dependencies like openpyxl.

The qtcolorpicker's nested event loop for the color popup is a potential asyncify hazard, but since it's triggered by user interaction in the main loop, it should suspend and resume properly like other Qt exec() calls. The real blocker is the BUILD_DRAFT requirement in the CMakeLists—Draft can't build due to PySide, so I need to patch that out and verif  …
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; cat src/Mod/Spreadsheet/Gui/CMakeLists.txt", "description": "Read Spreadsheet Gui CMakeLists"}
tool result
# SPDX-License-Identifier: LGPL-2.1-or-later

generate_from_py(ViewProviderSpreadsheet)

# The XML files
set(SpreadsheetGui_XML_SRCS
    ViewProviderSpreadsheet.pyi
)

set(SpreadsheetGui_LIBS
    Spreadsheet
    FreeCADGui
)

set_property(SOURCE qtcolorpicker.h qtcolorpicker.cpp PROPERTY SKIP_AUTOMOC ON)
add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/moc_qtcolorpicker-internal.cpp
    COMMAND ${QtCore_MOC_EXECUTABLE} -o ${CMAKE_CURRENT_BINARY_DIR}/moc_qtcolorpicker-internal.cpp ${CMAKE_CU  …[truncated]
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; echo \"=== misc wasm hazards Spreadsheet ===\"; grep -rn \"popen\\|fork\\|system(\\|std::system\\|QProcess\\|getenv(\\\"HOME\\|localhost\\|socket\\|curl\\|QNetwork\" src/Mod/Spre…
tool result
=== misc wasm hazards Spreadsheet ===
src/Mod/Spreadsheet/Gui/SheetModel.cpp:538:                    v = QLocale::system().toString(d, 'f', Base::UnitsApi::getDecimals());
=== misc wasm hazards Surface ===
=== AppSpreadsheet init func name ===
50:    return Base::Interpreter().addModule(new Module);
=== AppSurface init ===
=== AppSpreadsheetGui init ===
Fable
thinking
The PyInit symbols aren't being found by grep because FreeCAD uses a custom PyMODINIT_FUNC macro for its module initialization pattern. I need to look at how the modules are actually registered—they should follow the PyInit_Part and PyInit_Spreadsheet naming convention in the static build. Let me compare the module initialization in AppSpreadsheet.cpp and AppPart.cpp to understand the pattern.
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; echo \"=== AppSpreadsheet.cpp module init ===\"; sed -n '1,60p' src/Mod/Spreadsheet/App/AppSpreadsheet.cpp; echo \"=== how Part defines PyInit (compare) ===\"; grep -n \"PyInit_\…
tool result
=== AppSpreadsheet.cpp module init ===
// SPDX-License-Identifier: LGPL-2.1-or-later

/***************************************************************************
 *   Copyright (c) 2002 Juergen Riegel <juergen.riegel@web.de>             *
 *   Copyright (c) 2015 Eivind Kvedalen <eivind@kvedalen.name>             *
 *                                                                         *
 *   This file is part of the FreeCAD CAx development system.              *
 *                      …[truncated]
Fable
thinking
I'm checking how the PyMOD_INIT_FUNC macro expands differently between the static build and the wasm-specific build, particularly whether it correctly generates PyInit_Spreadsheet in each case.
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; grep -rn \"define PyMOD_INIT_FUNC\\|PyMOD_INIT_FUNC\" src/Base/PyObjectBase.h src/Base/*.h 2>/dev/null | head; echo \"--- surface init func ---\"; grep -n \"PyMOD_INIT_FUNC\\|ini…
tool result
src/Base/PyObjectBase.h:67:#define PyMOD_INIT_FUNC(name) PyMODINIT_FUNC PyInit_##name(void)
src/Base/PyObjectBase.h:67:#define PyMOD_INIT_FUNC(name) PyMODINIT_FUNC PyInit_##name(void)
--- surface init func ---
src/Mod/Surface/App/AppSurface.cpp:58:PyObject* initModule()
src/Mod/Surface/App/AppSurface.cpp:66:PyMOD_INIT_FUNC(Surface)
src/Mod/Surface/App/AppSurface.cpp:76:    PyObject* mod = Surface::initModule();
src/Mod/Surface/Gui/AppSurfaceGui.cpp:59:PyObject* initModule()
src/Mod/Surface  …[truncated]
Fable
thinking
I'm mapping out the Python module initialization names and checking which ones are already configured in the CMakeLists file. Spreadsheet and its GUI variant are already wired up, but Surface needs to be added to the build configuration.

Now I'm verifying that Surface and SurfaceGui will compile properly in the WASM environment — Surface uses the right patterns with non-modal task dialogs and has no threading issues, just static QMessageBox calls from the main loop. The real blocker is that Spreadsheet has a legacy REQUIRES_MODS dependency on Draft that will prevent the build, but since the C++ module doesn't actually use Draft anywhere, removing that requirement is safe. I'm also confirmin  …
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; echo \"=== OCC libs in cache ===\"; grep -i \"OCC_LIBRARIES\\|OCC_LIBRARY_DIR\\|OCCT\" /opt/toolchains/src/freecad-gui-build/CMakeCache.txt | head -20; echo \"=== OCCT toolkits u…
tool result
=== OCC libs in cache ===
CMAKE_FIND_ROOT_PATH:UNINITIALIZED=/opt/toolchains/qt-asyncify/6.11.1/wasm_singlethread;/opt/toolchains/occt-wasm;/opt/toolchains/xerces-wasm;/opt/toolchains/fmt-wasm;/opt/toolchains/yaml-wasm;/opt/toolchains/python-wasm;/opt/toolchains/boost-wasm;/opt/toolchains/icu-wasm;/opt/toolchains
//disable usage of occt-config files
OCCT_CMAKE_FALLBACK:BOOL=OFF
OpenCASCADE_DIR:UNINITIALIZED=/opt/toolchains/occt-wasm/lib/cmake/opencascade
FIND_PACKAGE_MESSAGE_DETAILS_OCC:INTERNAL  …[truncated]
Fable
thinking
I'm checking that OCCT 7.8.1 is statically built at the toolchain location, and the various geometry and modeling toolkits it includes—like TKGeomAlgo, TKBRep, TKFillet, and TKOffset—are already linked into the Part module. The Surface module's FeatureFilling feature relies on OCCT's GeomPlate and BRepFill_Filling classes, which are part of the standard static OCCT build that Part depends on.
Fable
⚙ Bash {"command": "ls /opt/toolchains/occt-wasm/lib/ | grep -iE \"geomalgo|fillet|offset|geombase|prim|brep|TKMath\" ; echo \"=== FindOCC toolkit list (OCC_LIBRARIES) ===\"; cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; grep -rn \"TKGeomAlgo\\…
tool result
libTKBRep.a
libTKFillet.a
libTKGeomAlgo.a
libTKGeomBase.a
libTKMath.a
libTKOffset.a
libTKPrim.a
=== FindOCC toolkit list (OCC_LIBRARIES) ===
cMake/FindOCC.cmake:7:# OCC_LIBRARIES      - Link this to use OCC
cMake/FindOCC.cmake:22:    set(OCC_LIBRARIES ${OpenCASCADE_LIBRARIES})
cMake/FindOCC.cmake:102:    set(OCC_LIBRARIES
cMake/FindOCC.cmake:103:            TKFillet
cMake/FindOCC.cmake:115:            TKGeomAlgo
cMake/FindOCC.cmake:117:            TKOffset
cMake/FindOCC.cmake:123:        list(AP  …[truncated]
Fable
thinking
I've verified that all the Surface toolkit dependencies are available through the OCC_LIBRARIES chain, so that resolves cleanly. Now I'm checking whether FeatureFilling relies on GeomPlate to finalize my plan.

Surface doesn't depend on Sketcher—just Part, which is enabled. Spreadsheet is standalone with no TechDraw or Measure dependencies, and the SheetModel's use of QLocale::system() is fine in WebAssembly since emscripten provides locale support. However, I'm noticing a potential runtime issue: the CSV import/export in Spreadsheet uses native file dialogs through Gui::FileDialog::getOpenFileName, which may not work properly in WebAssembly since there's no real filesystem and the browser s  …
Fable
⚙ Bash {"command": "ls /home/magik6k/lcad-wasm/porting/ 2>/dev/null; echo \"---\"; ls /home/magik6k/lcad-wasm/porting/*/ 2>/dev/null | head -30", "description": "Check existing porting plan dirs"}
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; echo \"=== Command.cpp:900-925 spreadsheet ===\"; sed -n '900,925p' src/Mod/Spreadsheet/Gui/Command.cpp; echo \"=== SpreadsheetView import/export context 240-290 ===\"; sed -n '2…
tool result
fem
measure
mesh
missing-cmds-sketcher
modal-audit
threading-audit
---
/home/magik6k/lcad-wasm/porting/fem/:

/home/magik6k/lcad-wasm/porting/measure/:

/home/magik6k/lcad-wasm/porting/mesh/:

/home/magik6k/lcad-wasm/porting/missing-cmds-sketcher/:

/home/magik6k/lcad-wasm/porting/modal-audit/:

/home/magik6k/lcad-wasm/porting/threading-audit/:
tool result
=== Command.cpp:900-925 spreadsheet ===
            Sheet* sheet = sheetView->getSheet();
            QModelIndexList selection = sheetView->selectedIndexes();

            if (selection.size() == 1) {
                std::vector<Range> range;

                range.emplace_back(
                    selection[0].row(),
                    selection[0].column(),
                    selection[0].row(),
                    selection[0].column()
                );

                std::  …[truncated]
Fable
thinking
I'm looking at Qt Print support for the Spreadsheet GUI and realizing that QtPrintSupport might not be available in the WebAssembly build since printing isn't supported on web. I need to verify whether Qt6PrintSupport is actually included in the wasm toolchain, as this could be a blocker if SpreadsheetGui depends on it.

Let me also check if FreeCADGui is already using it, which would tell me how this is typically handled in the codebase.
Fable
⚙ Bash {"command": "echo \"=== Qt PrintSupport in toolchain? ===\"; ls /opt/toolchains/qt-asyncify/6.11.1/wasm_singlethread/lib/ 2>/dev/null | grep -i print; ls /opt/toolchains/qt-asyncify/6.11.1/wasm_singlethread/lib/cmake/ 2>/dev/null | grep -i …
tool result
=== Qt PrintSupport in toolchain? ===
libQt6PrintSupport.a
libQt6PrintSupport.prl
Qt6PrintSupport
Qt6PrintSupportPrivate
=== does SpreadsheetView include PrintSupport ===
src/Mod/Spreadsheet/Gui/SpreadsheetView.h:85:    void print(QPrinter*) override;
src/Mod/Spreadsheet/Gui/SpreadsheetView.cpp:27:#include <QPrintDialog>
src/Mod/Spreadsheet/Gui/SpreadsheetView.cpp:28:#include <QPrintPreviewDialog>
src/Mod/Spreadsheet/Gui/SpreadsheetView.cpp:29:#include <QPrinter>
src/Mod/Spreadsheet/Gui/Spre  …[truncated]
Fable
thinking
QtPrintSupport is available as a static library in the wasm toolchain and FreeCADGui already links it, so SpreadsheetView's printing code will compile and link fine. At runtime, printing won't actually do anything since there's no printer available, and the modal dialog will just suspend and resume from the main loop—but that's acceptable since it's not a build blocker. Now I'm verifying I have everything I need to move forward.

SpreadsheetGui only depends on Spreadsheet and FreeCADGui, no MatGui or other modules. Surface Blending's Python bindings for BlendPoint and BlendCurve are standard pyi generation like Part, so no issues there. SurfaceGui references PartGui in its libraries, and Par  …
Fable
All facts gathered. Let me write the plan and patch files.
Fable
⚙ Bash {"command": "mkdir -p /home/magik6k/lcad-wasm/porting/spreadsheet-surface; echo created", "description": "Create porting dir"}
tool result
created
Fable
thinking
Now I'm creating the plan document and generating the patch files.
Fable
⚙ Write {"file_path": "/home/magik6k/lcad-wasm/porting/spreadsheet-surface/plan.md", "content": "# Porting plan: enable **Spreadsheet** + **Surface** for FreeCAD‑wasm\n\nSlug: `spreadsheet-surface`\nSource tree: `/home/magik6k/lcad-wasm/freecad-por…
tool result
File created successfully at: /home/magik6k/lcad-wasm/porting/spreadsheet-surface/plan.md (file state is current in your context — no need to Read it back)
Fable
⚙ Bash {"command": "mkdir -p /home/magik6k/lcad-wasm/porting/spreadsheet-surface/patches; cd /home/magik6k/lcad-wasm/freecad-port/FreeCAD; sed -n '39p' cMake/FreeCAD_Helpers/CheckInterModuleDependencies.cmake; echo \"--- main lines 24-28 ---\"; se…
tool result
    REQUIRES_MODS(BUILD_SPREADSHEET        BUILD_DRAFT)
--- main lines 24-28 ---
    endif()
    if(BUILD_SPREADSHEET)
        list(APPEND FREECAD_WASM_PY_MODULES Spreadsheet)
        list(APPEND FREECAD_WASM_PY_GUI_MODULES SpreadsheetGui)
    endif()
Fable
⚙ Write {"file_path": "/home/magik6k/lcad-wasm/porting/spreadsheet-surface/patches/0001-drop-spreadsheet-draft-req.diff", "content": "--- a/cMake/FreeCAD_Helpers/CheckInterModuleDependencies.cmake\n+++ b/cMake/FreeCAD_Helpers/CheckInterModuleDepend…
tool result
File created successfully at: /home/magik6k/lcad-wasm/porting/spreadsheet-surface/patches/0001-drop-spreadsheet-draft-req.diff (file state is current in your context — no need to Read it back)
Fable
⚙ Write {"file_path": "/home/magik6k/lcad-wasm/porting/spreadsheet-surface/patches/0002-add-surface-inittab.diff", "content": "--- a/src/Main/CMakeLists.txt\n+++ b/src/Main/CMakeLists.txt\n@@ -24,6 +24,10 @@\n if(BUILD_SPREADSHEET)\n li…
tool result
File created successfully at: /home/magik6k/lcad-wasm/porting/spreadsheet-surface/patches/0002-add-surface-inittab.diff (file state is current in your context — no need to Read it back)
Fable
thinking
Now I'm setting the buildOrder to 2 to position this after Part and Sketcher, then filling in the remaining schema fields.
Fable
Plan and patches written. Returning the structured summary.
Fable
⚙ StructuredOutput {"slug": "spreadsheet-surface", "title": "Enable Spreadsheet + Surface modules for FreeCAD-wasm", "feasibility": "config-only", "oneLineVerdict": "Both are C++ workbenches (no PySide, no threads, no dep porting) — enabling them is a CMake/c…
tool result
Structured output provided successfully