Improve according to review remarks

doc/salome/examples/import_export.py

@@ -68,7 +68,7 @@ sphere_stl2 = geompy.ImportSTL(f_stl2)
 ok, sphere_xao, sub_shapes, groups, fields = geompy.ImportXAO(f_xao)
 
 # import XAO data from memory buffer (bytes array)
-ok, sphere_xao, sub_shapes, groups, fields = geompy.ImportXAOMem(buff_xao)
+ok_mem, sphere_xao_mem, sub_shapes_mem, groups_mem, fields_mem = geompy.ImportXAOMem(buff_xao)
 
 # clean up
 for f in f_brep, f_iges, f_step, f_stl1, f_stl2, f_vtk1, f_vtk2, f_xao:

idl/XAOPlugin.idl

@@ -47,7 +47,7 @@ module GEOM
                        in string shapeFileName );
     
     /*!
-     *  Export a shape to XAO format
+     *  Export a shape to XAO format in a byte array
      *  \param shape The shape to export
      *  \param groups The list of groups to export
      *  \param fields The list of fields to export

src/GEOM_SWIG/XAOPluginBuilder.py

@@ -58,7 +58,7 @@ def ExportXAO(self, shape, groups, fields, author, fileName, shapeFileName = "")
     RaiseIfFailed("ExportXAO", anOp)
     return res
 
-## Export a shape to XAO format
+## Export a shape to XAO format in byte array
 #  @param shape The shape to export
 #  @param groups The list of groups to export
 #  @param fields The list of fields to export
@@ -68,7 +68,7 @@ def ExportXAO(self, shape, groups, fields, author, fileName, shapeFileName = "")
 #  @ingroup l2_import_export
 def ExportXAOMem(self, shape, groups, fields, author):
     """
-    Export a shape to XAO format
+    Export a shape to XAO format in byte array
     
     Parameters:
         shape The shape to export
@@ -118,10 +118,26 @@ def ImportXAO(self, fileName, theName=None):
     """
     from salome.geom.geomBuilder import RaiseIfFailed
     anOp = GetXAOPluginOperations(self)
-    res = anOp.ImportXAO(fileName)
+    (res, shape, subShapes, groups, fields) = anOp.ImportXAO(fileName)
     RaiseIfFailed("ImportXAO", anOp)
-    self._autoPublish(res[1], theName, "imported")
+    if res:
-    return res
+        # publish imported shape
+        self._autoPublish(shape, theName, "imported")
+        # publish imported sub shapes, groups and fields
+        if theName or self.myMaxNbSubShapesAllowed:
+            for ss in (subShapes + groups + fields):
+                self.addToStudyInFather(shape, ss, ss.GetName())
+                if isinstance( ss, GEOM._objref_GEOM_Field ):
+                    listStepIDs = ss.GetSteps()
+                    for stepID in listStepIDs:
+                        step = ss.GetStep(stepID)
+                        self.addToStudyInFather(ss, step, step.GetName())
+                        pass
+                    pass
+                pass
+            pass
+        pass
+    return (res, shape, subShapes, groups, fields)
 
 ## Import a shape from XAO format byte array
 #  @param byteArray byte array with XAO data
@@ -139,7 +155,7 @@ def ImportXAO(self, fileName, theName=None):
 #  @ingroup l2_import_export
 def ImportXAOMem(self, byteArray, theName=None):
     """
-    Import a shape from XAO format
+    Import a shape from XAO format byte array
     
     Parameters:
         byteArray byte array with XAO data

src/XAOPlugin/XAOPlugin_IOperations_i.cc

@@ -101,9 +101,10 @@ SALOMEDS::TMPFile* XAOPlugin_IOperations_i::ExportXAOMem( GEOM::GEOM_Object_ptr
  *  \param groups The list of groups to export
  *  \param fields The list of fields to export
  *  \param author The author of the export
+ *  \param toFile Export to file if true, otherwise export to memory buffer (the returned string)
  *  \param fileName The name of the exported file
  *  \param shapeFileName If not empty, save the BREP shape to this external file
- *  \return boolean indicating if export was successful.
+ *  \return string The exported buffer if toFile=false, otherwise an empty string
  */
 //=============================================================================
 std::string XAOPlugin_IOperations_i::exportXAO( GEOM::GEOM_Object_ptr shape,
@@ -180,7 +181,7 @@ CORBA::Boolean XAOPlugin_IOperations_i::ImportXAO( const char* fileName,
 
 //=============================================================================
 /*!
- *  Import a shape from XAO format
+ *  Import a shape from XAO format memory buffer
  *  \param fileName The name of the file to import
  *  \param shape The imported shape
  *  \param subShapes The list of imported subShapes
@@ -202,7 +203,9 @@ CORBA::Boolean XAOPlugin_IOperations_i::ImportXAOMem( const SALOMEDS::TMPFile& t
 //=============================================================================
 /*!
  *  Import a shape from XAO format
- *  \param fileName The name of the file to import
+ *  \param isFile Boolean flag to switch between import from file or from buffer
+ *  \param fileName The name of the file to import from if isFile=true
+ *  \param theBuff The buffer to import from if isFile=false
  *  \param shape The imported shape
  *  \param subShapes The list of imported subShapes
  *  \param groups The list of imported groups