[chronojump] If ForceSensor or RaceAnalyzer export fails, it displays error message

[Xavier de Blas <xaviblas src gnome org>]

commit 33453cdb53c884418d30cb42b53eb9c380e192df
Author: Xavier de Blas <xaviblas gmail com>
Date:   Thu Mar 11 18:42:30 2021 +0100

    If ForceSensor or RaceAnalyzer export fails, it displays error message

 src/exportFiles/exportFiles.cs | 4 ++++
 src/exportFiles/fs.cs          | 3 +++
 src/exportFiles/re.cs          | 3 +++
 3 files changed, 10 insertions(+)
---
diff --git a/src/exportFiles/exportFiles.cs b/src/exportFiles/exportFiles.cs
index 03654179..8783e37c 100644
--- a/src/exportFiles/exportFiles.cs
+++ b/src/exportFiles/exportFiles.cs
@@ -41,6 +41,7 @@ public abstract class ExportFiles
 
        protected static Thread thread;
        protected static bool cancel;
+       protected static bool failedRprocess; //error on .R process
        protected static bool noData;
        protected static bool cannotCopy;
        protected static string messageToProgressbar;
@@ -72,6 +73,7 @@ public abstract class ExportFiles
                createOrEmptyDirs();
 
                cancel = false;
+               failedRprocess = false;
                noData = false;
                cannotCopy = false;
                progressbar.Fraction = 0;
@@ -146,6 +148,8 @@ public abstract class ExportFiles
                                labelResult.Text = Catalog.GetString("Cancelled.");
                        else if (noData)
                                labelResult.Text = Catalog.GetString("Missing data.");
+                       else if (failedRprocess)
+                               labelResult.Text = Catalog.GetString("Error doing operation.");
                        else if (cannotCopy)
                                labelResult.Text = string.Format(Catalog.GetString("Cannot copy to {0} "), 
exportURL);
                        else
diff --git a/src/exportFiles/fs.cs b/src/exportFiles/fs.cs
index 649ae9b0..a3ea1bdb 100644
--- a/src/exportFiles/fs.cs
+++ b/src/exportFiles/fs.cs
@@ -339,7 +339,10 @@ public class ForceSensorExport : ExportFiles
                                        );
 
                        if(! fsg.CallR(imageWidth, imageHeight, false))
+                       {
+                               failedRprocess = true;
                                return false;
+                       }
                }
 
                LogB.Information("Waiting creation of file... ");
diff --git a/src/exportFiles/re.cs b/src/exportFiles/re.cs
index b52c0a64..0dc32a72 100644
--- a/src/exportFiles/re.cs
+++ b/src/exportFiles/re.cs
@@ -196,7 +196,10 @@ public class RunEncoderExport : ExportFiles
                                        );
 
                        if(! reg.CallR(imageWidth, imageHeight, false))
+                       {
+                               failedRprocess = true;
                                return false;
+                       }
                }
 
                LogB.Information("Waiting creation of file... ");