Possibility to set raw minimizer in new kernel.

Core/Fitting/FitSuiteImpl.cpp

@@ -92,7 +92,11 @@ void FitSuiteImpl::addFitStrategy(const IFitStrategy& strategy)
 
 void FitSuiteImpl::setMinimizer(IMinimizer* minimizer)
 {
-    m_kernel->setMinimizer(minimizer);
+    if (use_new_kernel) {
+        m_new_kernel->setMinimizer(minimizer);
+    } else {
+        m_kernel->setMinimizer(minimizer);
+    }
 }
 
 void FitSuiteImpl::runFit()

Fit/NewKernel/Kernel.cpp

@@ -36,6 +36,11 @@ void Kernel::setMinimizer(const std::string& minimizerName, const std::string& a
     m_minimizer.reset(MinimizerFactory::createMinimizer(minimizerName, algorithmName, options));
 }
 
+void Kernel::setMinimizer(IMinimizer* minimizer)
+{
+    m_minimizer.reset(minimizer);
+}
+
 MinimizerResult Kernel::minimize(fcn_scalar_t fcn, const Parameters& parameters)
 {
     setParameters(parameters);

Fit/NewKernel/Kernel.h

@@ -40,6 +40,8 @@ public:
     void setMinimizer(const std::string& minimizerName, const std::string& algorithmName = "",
                       const std::string& options = "");
 
+    void setMinimizer(IMinimizer* minimizer);
+
     MinimizerResult minimize(fcn_scalar_t fcn, const Parameters& parameters);
     MinimizerResult minimize(fcn_residual_t fcn, const Parameters& parameters);
 

Fit/NewKernel/Minimizer.cpp

@@ -30,6 +30,11 @@ void Minimizer::setMinimizer(const std::string& minimizerName, const std::string
     m_kernel->setMinimizer(minimizerName, algorithmName, options);
 }
 
+void Minimizer::setMinimizer(IMinimizer* minimizer)
+{
+    m_kernel->setMinimizer(minimizer);
+}
+
 Minimizer::~Minimizer() = default;
 
 MinimizerResult Minimizer::minimize(fcn_scalar_t fcn, const Parameters& parameters)

Fit/NewKernel/Minimizer.h

@@ -25,6 +25,7 @@
 #include <memory>
 
 class PyCallback;
+class IMinimizer;
 
 namespace Fit {
 
@@ -42,6 +43,8 @@ public:
     void setMinimizer(const std::string& minimizerName, const std::string& algorithmName = "",
                       const std::string& options = "");
 
+    void setMinimizer(IMinimizer* minimizer);
+
 #ifndef SWIG
     MinimizerResult minimize(fcn_scalar_t fcn, const Parameters& parameters);