[chronojump] Safer encoder export to csv

[Xavier de Blas <xaviblas src gnome org>]

commit 3317f388c79c7c1caaefbfae21461b35173ae1c3
Author: Xavier de Blas <xaviblas gmail com>
Date:   Mon Nov 9 12:44:30 2015 +0100

    Safer encoder export to csv

 encoder/graph.R     |    5 +++++
 src/encoderRProc.cs |   25 +++++++++++++++++++++++++
 src/gui/encoder.cs  |    4 +++-
 src/util.cs         |    8 ++++++++
 4 files changed, 41 insertions(+), 1 deletions(-)
---
diff --git a/encoder/graph.R b/encoder/graph.R
index 5ad2f24..d6b4e9c 100644
--- a/encoder/graph.R
+++ b/encoder/graph.R
@@ -2719,6 +2719,9 @@ doProcess <- function(options)
        #since Chronojump 1.3.6, encoder analyze has a treeview that can show the curves
        #when an analysis is done, curves file has to be written
        writeCurves = TRUE
+       #but don't writeCurves on exportCSV because outputfile is the same 
+       if(op$Analysis == "exportCSV")
+               writeCurves = FALSE
 
        if(
           op$Analysis == "powerBars" || op$Analysis == "cross" || 
@@ -3034,6 +3037,8 @@ doProcess <- function(options)
        }
        if(op$Analysis=="exportCSV") {
                print("Starting export...")
+               write("starting export", stderr())
+
                curvesNum = length(curves[,1])
 
                maxLength = 0
diff --git a/src/encoderRProc.cs b/src/encoderRProc.cs
index 7db56b5..1e9f75b 100644
--- a/src/encoderRProc.cs
+++ b/src/encoderRProc.cs
@@ -317,6 +317,12 @@ public class EncoderRProcAnalyze : EncoderRProc
        private bool neuromuscularProfileDo;
        private bool translate;
 
+       /*
+        * to avoid problems on some windows. R exports csv to Util.GetEncoderExportTempFileName()
+        * then C# copies it to exportFileName
+        */
+       public string ExportFileName;
+
        public bool CancelRScript;
 
        public EncoderRProcAnalyze() {
@@ -431,6 +437,11 @@ public class EncoderRProcAnalyze : EncoderRProc
                                while ( ! ( fileWritten(outputFileCheck) || CancelRScript) );
                        else
                                while ( ! ( (fileWritten(outputFileCheck) && fileWritten(outputFileCheck2)) 
|| CancelRScript ) );
+
+                       //copy export from temp file to the file that user has selected
+                       if(es.Ep.Analysis == "exportCSV" && ! CancelRScript)
+                               copyExportedFile();
+       
                } catch {
                        LogB.Warning("catched at startProcess");
                        return false;
@@ -478,10 +489,24 @@ public class EncoderRProcAnalyze : EncoderRProc
                        while ( ! ( fileWritten(outputFileCheck) || CancelRScript) );
                else
                        while ( ! ( (fileWritten(outputFileCheck) && fileWritten(outputFileCheck2)) || 
CancelRScript ) );
+                       
+               //copy export from temp file to the file that user has selected
+               if(es.Ep.Analysis == "exportCSV" && ! CancelRScript)
+                       copyExportedFile();
+               
                LogB.Debug("files written");
                
                return true;
        }
+
+       //copy export from temp file to the file that user has selected
+       private void copyExportedFile() {
+               //wait first this status mark that is created when file is fully exported
+               while ( ! Util.FileExists(UtilEncoder.GetEncoderStatusTempBaseFileName() + "5.txt") ) 
+                       ;
+               //copy the file
+               File.Copy(es.OutputData1, ExportFileName, true);
+       }
        
        
        private string getEncoderScriptCallGraph() {
diff --git a/src/gui/encoder.cs b/src/gui/encoder.cs
index 1fece3b..d5561d7 100644
--- a/src/gui/encoder.cs
+++ b/src/gui/encoder.cs
@@ -1634,11 +1634,13 @@ public partial class ChronoJumpWindow
                EncoderStruct encoderStruct = new EncoderStruct(
                                dataFileName, 
                                UtilEncoder.GetEncoderGraphTempFileName(),
-                               selectedFileName, 
+                               Util.GetEncoderExportTempFileName(), 
                                UtilEncoder.GetEncoderStatusTempBaseFileName(),
                                UtilEncoder.GetEncoderSpecialDataTempFileName(),
                                ep);
 
+               encoderRProcAnalyze.ExportFileName = selectedFileName;
+
                encoderRProcAnalyze.SendData(
                                Util.ChangeSpaceAndMinusForUnderscore(currentPerson.Name) + "-" + 
                                Util.ChangeSpaceAndMinusForUnderscore(lastEncoderSQLSignal.exerciseName) + 
diff --git a/src/util.cs b/src/util.cs
index ee7deb8..33365d9 100644
--- a/src/util.cs
+++ b/src/util.cs
@@ -932,7 +932,15 @@ public class Util
        }
 
        /********** end of multimedia paths ************/
+       
+
+       /********** start of encoder paths ************/
+
+       public static string GetEncoderExportTempFileName() {
+               return Path.Combine(Path.GetTempPath(), "encoder_export.csv");
+       }
 
+       /********** end of encoder paths ************/
 
 
        public static string GetManualDir() {