From a30af8a29ac3876a65b993ab67b7b8cdb1c1524c Mon Sep 17 00:00:00 2001
From: Raquel Alvarez Banos <raquel.alvarez.banos@gmail.com>
Date: Tue, 21 Apr 2015 11:14:15 +0100
Subject: [PATCH] Re #11533 Run PlotAsymmetryByLogValue asynchronously

---
 .../src/Muon/ALCDataLoadingPresenter.cpp               | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/Code/Mantid/MantidQt/CustomInterfaces/src/Muon/ALCDataLoadingPresenter.cpp b/Code/Mantid/MantidQt/CustomInterfaces/src/Muon/ALCDataLoadingPresenter.cpp
index a9eee4fe1316..ae62b6754da4 100644
--- a/Code/Mantid/MantidQt/CustomInterfaces/src/Muon/ALCDataLoadingPresenter.cpp
+++ b/Code/Mantid/MantidQt/CustomInterfaces/src/Muon/ALCDataLoadingPresenter.cpp
@@ -6,6 +6,8 @@
 #include "MantidQtCustomInterfaces/Muon/MuonAnalysisHelper.h"
 #include "MantidQtAPI/AlgorithmInputHistory.h"
 
+#include <Poco/ActiveResult.h>
+
 #include <QApplication>
 #include <QFileInfo>
 #include <QDir>
@@ -87,7 +89,13 @@ namespace CustomInterfaces
       }
 
       alg->setPropertyValue("OutputWorkspace", "__NotUsed");
-      alg->execute();
+
+      // Execute async so we can show progress bar
+      Poco::ActiveResult<bool> result(alg->executeAsync());
+      while( !result.available() )
+      {
+        QCoreApplication::processEvents();
+      }
 
       m_loadedData = alg->getProperty("OutputWorkspace");