[fixed] [regression] material editor cannot be used/opened

[uwestoehr]

- create a FEM analysis
- use the menu Models -> Material -> Material editor

result:

Code: Select all

 Running the Python command 'FEM_MaterialEditor' failed:
Traceback (most recent call last):
  File "D:\FreeCAD-build\Mod\Fem\femcommands\commands.py", line 364, in Activated
    FreeCADGui.doCommand("MaterialEditor.openEditor()")
  File "<string>", line 1, in <module>
  File "D:\FreeCAD-build\Mod\Material\MaterialEditor.py", line 752, in openEditor
    editor = MaterialEditor(obj, prop)
  File "D:\FreeCAD-build\Mod\Material\MaterialEditor.py", line 93, in __init__
    self.updatePreviews(mat=material)
  File "D:\FreeCAD-build\Mod\Material\MaterialEditor.py", line 460, in updatePreviews
    mat = self.getDict()
  File "D:\FreeCAD-build\Mod\Material\MaterialEditor.py", line 417, in getDict
    root = model.invisibleRootItem()

'NoneType' object has no attribute 'invisibleRootItem'

This is a regression to FC 0.18.4.

OS: Windows 10 (10.0)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.22970 (Git)
Build type: Release
Branch: master
Hash: 59c50053a651a42434934b589918724510d5615e
Python version: 3.6.8
Qt version: 5.12.6
Coin version: 4.0.0a
OCC version: 7.4.0.beta
Locale: German/Germany (de_DE)

[bernd]

by Python ...

Code: Select all

import MaterialEditor
MaterialEditor.openEditor()

Code: Select all

>>> MaterialEditor.openEditor()
Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "C:\0_BHA_privat\progr\FreeCAD_0.19.xxxxx_Py3Qt5\Mod\Material\MaterialEditor.py", line 752, in openEditor
    editor = MaterialEditor(obj, prop)
  File "C:\0_BHA_privat\progr\FreeCAD_0.19.xxxxx_Py3Qt5\Mod\Material\MaterialEditor.py", line 93, in __init__
    self.updatePreviews(mat=material)
  File "C:\0_BHA_privat\progr\FreeCAD_0.19.xxxxx_Py3Qt5\Mod\Material\MaterialEditor.py", line 460, in updatePreviews
    mat = self.getDict()
  File "C:\0_BHA_privat\progr\FreeCAD_0.19.xxxxx_Py3Qt5\Mod\Material\MaterialEditor.py", line 417, in getDict
    root = model.invisibleRootItem()
AttributeError: 'NoneType' object has no attribute 'invisibleRootItem'
>>> 

there have bees some code changes here lately ... git commit 0f875168b675

[bernd]

if started from Arch the Material Editor works ...

[bernd]

it works if started this way ...

Code: Select all

import MaterialEditor
MaterialEditor.editMaterial({'':''})

but not if started this way ...

Code: Select all

import MaterialEditor
MaterialEditor.editMaterial({})

[bernd]

git commit 6455352

[uwestoehr]

git commit 6455352

many thanks! That was amazingly quick.