FEM: Don't import FemGui when it's not required

This is part of preparation to create automated FEM wb tests

Signed-off-by: Przemo Firszt <przemo@firszt.eu>

src/Mod/Fem/FemTools.py

@@ -22,7 +22,6 @@
 
 
 import FreeCAD
-import FemGui
 from PySide import QtCore
 
 
@@ -37,6 +36,7 @@ class FemTools(QtCore.QRunnable, QtCore.QObject):
         if analysis:
             self.analysis = analysis
         else:
+            import FemGui
             self.analysis = FemGui.getActiveAnalysis()
         if self.analysis:
             self.update_objects()

src/Mod/Fem/MechanicalAnalysis.py

@@ -23,12 +23,12 @@
 import ccxFrdReader
 import FreeCAD
 from FemTools import FemTools
-import FemGui
 import os
 import time
 
 if FreeCAD.GuiUp:
     import FreeCADGui
+    import FemGui
     from PySide import QtCore, QtGui
     from PySide.QtCore import Qt
     from PySide.QtGui import QApplication
@@ -79,7 +79,6 @@ class _CommandNewMechanicalAnalysis:
         FreeCADGui.Selection.clearSelection()
 
     def IsActive(self):
-        import FemGui
         return FreeCADGui.ActiveDocument is not None and FemGui.getActiveAnalysis() is None
 
 
@@ -649,6 +648,7 @@ def results_present():
     return results
 
 
+if FreeCAD.GuiUp:
     FreeCADGui.addCommand('Fem_NewMechanicalAnalysis', _CommandNewMechanicalAnalysis())
     FreeCADGui.addCommand('Fem_CreateFromShape', _CommandFemFromShape())
     FreeCADGui.addCommand('Fem_MechanicalJobControl', _CommandMechanicalJobControl())