Invoking CustomSetup for DiffSphere duplicates the DiffSphere function

[Jose Borreguero]

In the "Fit Function" browser: Setup -> Custom Setup -> ds, (where ds stores a DiffSphere fitting function) produces two DiffSphere fitting functions, the one stored and one additional.

I believe this is due to the fact that saving a fit function invokes asString(), thus storing a string representation of the fit function. The inverse step, obtaining the fit function for the string representation invokes iteratively the constructor for each function. The DiffSphere constructor calls the InelasticSphere and the ElasticSphere constructor, thus creating an additional DiffSphere pair.

[Jose Borreguero]

Roman will implement an InmutableCompositeFunction that will override asString() such that the member functions will not be printed. This will prevent duplication of the member functions when creating a DiffSphere function from such a string.

[Jose Borreguero]

Refs #5603 Q as attribute, inherit from immutableComposite

modified: CMakeLists.txt, BackToBackExponential.h, DiffSphere.h,

BackToBackExponential.cpp, DiffSphere.cpp

Changeset: 3d5ac9b7bf439d2e6490e43d24561dc3d57c49e3

[Jose Borreguero]

DiffSphere now inherits correctly from ImmutableComposite function

[Roman Tolchenov]

DiffSphere works with the MantidPlot's fit browser.

[Jose Borreguero]

Refs #5603 Q as attribute, inherit from immutableComposite

modified: CMakeLists.txt, BackToBackExponential.h, DiffSphere.h,

BackToBackExponential.cpp, DiffSphere.cpp

Changeset: 3d5ac9b7bf439d2e6490e43d24561dc3d57c49e3

[Stuart Campbell]

This ticket has been transferred to github issue ​6449