Merge pull request #679 from mantidproject/11654_respect_qmin_qmax_in…

…_new_refl_ui

Respect qmin & qmax limits in new Reflectometry UI

Code/Mantid/MantidQt/CustomInterfaces/src/ReflMainViewPresenter.cpp

@@ -711,6 +711,25 @@ namespace MantidQt
         m_tableDirty = true;
       }
 
+      //We need to make sure that qmin and qmax are respected, so we rebin to
+      //those limits here.
+      IAlgorithm_sptr algCrop = AlgorithmManager::Instance().create("Rebin");
+      algCrop->initialize();
+      algCrop->setProperty("InputWorkspace", "IvsQ_" + runNo);
+      algCrop->setProperty("OutputWorkspace", "IvsQ_" + runNo);
+      const double qmin = m_model->data(m_model->index(rowNo, COL_QMIN)).toDouble();
+      const double qmax = m_model->data(m_model->index(rowNo, COL_QMAX)).toDouble();
+      const double dqq = m_model->data(m_model->index(rowNo, COL_DQQ)).toDouble();
+      std::vector<double> params;
+      params.push_back(qmin);
+      params.push_back(-dqq);
+      params.push_back(qmax);
+      algCrop->setProperty("Params", params);
+      algCrop->execute();
+
+      if(!algCrop->isExecuted())
+        throw std::runtime_error("Failed to run Rebin algorithm");
+
       //Also fill in theta if needed
       if(m_model->data(m_model->index(rowNo, COL_ANGLE)).toString().isEmpty() && thetaGiven)
         m_model->setData(m_model->index(rowNo, COL_ANGLE), theta);