FEM: solver settings, add methods to retrieve the comments writing preference parameter

src/Mod/Fem/femsolver/settings.py

@@ -58,6 +58,7 @@ class _SolverDlg(object):
         self.param_path = param_path
         self.use_default = use_default
         self.custom_path = custom_path
+        self.write_comments = "writeCommentsToInputFile"
 
         # get the parameter object where the paramete are saved in
         self.param_group = FreeCAD.ParamGet(self.param_path)
@@ -79,6 +80,9 @@ class _SolverDlg(object):
         from distutils.spawn import find_executable as find_bin
         return find_bin(binary)
 
+    def get_write_comments(self):
+        return self.param_group.GetBool(self.write_comments, True)
+
 
 '''
 default:
@@ -129,6 +133,16 @@ def getBinary(name):
         return None
 
 
+def get_write_comments(name):
+    if name in _SOLVER_PARAM:
+        return _SOLVER_PARAM[name].get_write_comments()
+    else:
+        FreeCAD.Console.PrintError(
+            'Settings solver name: {} not found in solver settings modules _SOLVER_PARAM dirctionary.\n'.format(name)
+        )
+        return None
+
+
 # ******** working directory parameter ***********************************************************
 def getCustomDir():
     param_group = FreeCAD.ParamGet(_GENERAL_PARAM)