Add GUI elements to fig.Figure

[adam-urbanczyk]

This PR adds a toolbar and minimal objects list to fig.Figure:

[adam-urbanczyk]

@lorenzncode this is by far not finished, but I remember you were interested in this.

[codecov]

Codecov Report

❌ Patch coverage is 98.40000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 96.40%. Comparing base (fe53ca0) to head (e99d2e7).
⚠️ Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
cadquery/fig.py	98.40%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1943      +/-   ##
==========================================
+ Coverage   95.96%   96.40%   +0.43%     
==========================================
  Files          29       29              
  Lines        7857     9839    +1982     
  Branches     1174     1558     +384     
==========================================
+ Hits         7540     9485    +1945     
- Misses        183      212      +29     
- Partials      134      142       +8     

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[adam-urbanczyk]

At the moment this is still meant for dogfooding.

[jmwright]

@adam-urbanczyk Does this feature only work in Windows? I see that the test_fig test is skipped if not run in a Windows environment and I'm getting some errors in Linux.

[adam-urbanczyk]

Only win CI works out of the box with UI AFAIK and I don't want to maintain something like CQ-editor has/had. The feature as such should work on all systems. What kind of errors are we talking about?

[jmwright]

@adam-urbanczyk Here is the error I get. Maybe I'm not setting things up correctly?

$ python
Python 3.13.5 (main, Jun 25 2025, 18:55:22) [GCC 14.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from cadquery.fig import Figure
>>> fig = Figure()
Traceback (most recent call last):
  File "<python-input-1>", line 1, in <module>
    fig = Figure()
  File "/home/jwright/repos/cadquery/cadquery/fig.py", line 196, in __init__
    self.view = vtk_widgets.VtkRemoteView(
                ~~~~~~~~~~~~~~~~~~~~~~~~~^
        win, interactive_ratio=1, interactive_quality=100
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/home/jwright/venvs/cq-fig/lib/python3.13/site-packages/trame_vtk/widgets/vtk/common.py", line 690, in __init__
    self._helper.has_capabilities("web", "rendering")
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'has_capabilities'