FEM: Move _CommandFemFromShape class to separate file

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

src/Mod/Fem/_CommandFemFromShape.py

@@ -0,0 +1,34 @@
+import FreeCAD
+
+if FreeCAD.GuiUp:
+    import FreeCADGui
+    from PySide import QtCore
+
+
+class _CommandFemFromShape:
+    def GetResources(self):
+        return {'Pixmap': 'fem-fem-mesh-from-shape',
+                'MenuText': QtCore.QT_TRANSLATE_NOOP("Fem_CreateFromShape", "Create FEM mesh"),
+                'ToolTip': QtCore.QT_TRANSLATE_NOOP("Fem_CreateFromShape", "Create FEM mesh from shape")}
+
+    def Activated(self):
+        FreeCAD.ActiveDocument.openTransaction("Create FEM mesh")
+        FreeCADGui.addModule("FemGui")
+        FreeCADGui.addModule("MechanicalAnalysis")
+        sel = FreeCADGui.Selection.getSelection()
+        if (len(sel) == 1):
+            if(sel[0].isDerivedFrom("Part::Feature")):
+                FreeCADGui.doCommand("App.activeDocument().addObject('Fem::FemMeshShapeNetgenObject', '" + sel[0].Name + "_Mesh')")
+                FreeCADGui.doCommand("App.activeDocument().ActiveObject.Shape = App.activeDocument()." + sel[0].Name)
+                FreeCADGui.doCommand("Gui.activeDocument().setEdit(App.ActiveDocument.ActiveObject.Name)")
+
+        FreeCADGui.Selection.clearSelection()
+
+    def IsActive(self):
+        sel = FreeCADGui.Selection.getSelection()
+        if len(sel) == 1:
+            return sel[0].isDerivedFrom("Part::Feature")
+        return False
+
+if FreeCAD.GuiUp:
+    FreeCADGui.addCommand('Fem_CreateFromShape', _CommandFemFromShape())