Implemented new time_t tools for datetime conversions.

ApplicationCode/Application/Tools/CMakeLists_files.cmake

@@ -44,6 +44,7 @@ ${CMAKE_CURRENT_LIST_DIR}/RiaFieldHandleTools.h
 ${CMAKE_CURRENT_LIST_DIR}/RiaBoundingBoxTools.h
 ${CMAKE_CURRENT_LIST_DIR}/RiaWellLogUnitTools.h
 ${CMAKE_CURRENT_LIST_DIR}/RiaWellLogUnitTools.inl
+${CMAKE_CURRENT_LIST_DIR}/RiaTimeTTools.h
 )
 
 set (SOURCE_GROUP_SOURCE_FILES
@@ -84,6 +85,7 @@ ${CMAKE_CURRENT_LIST_DIR}/RiaGitDiff.cpp
 ${CMAKE_CURRENT_LIST_DIR}/RiaCellDividingTools.cpp
 ${CMAKE_CURRENT_LIST_DIR}/RiaFieldHandleTools.cpp
 ${CMAKE_CURRENT_LIST_DIR}/RiaBoundingBoxTools.cpp
+${CMAKE_CURRENT_LIST_DIR}/RiaTimeTTools.cpp
 )
 
 list(APPEND CODE_HEADER_FILES

ApplicationCode/Application/Tools/RiaTimeTTools.cpp

@@ -0,0 +1,50 @@
+/////////////////////////////////////////////////////////////////////////////////
+//
+//  Copyright (C) 2020 Equinor ASA
+//
+//  ResInsight is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.
+//
+//  See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
+//  for more details.
+//
+/////////////////////////////////////////////////////////////////////////////////
+
+#include "RiaTimeTTools.h"
+
+#include <QDateTime>
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+double RiaTimeTTools::toDouble( time_t time )
+{
+    double milliSecSinceEpoch = time * 1000; // This is kind of hack, as the c++ standard does not state what
+                                             // time_t is. "Almost always" secs since epoch according to
+                                             // cppreference.com
+    return milliSecSinceEpoch;
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+time_t RiaTimeTTools::fromDouble( double time )
+{
+    time_t timet = static_cast<time_t>( time / 1000 );
+    return timet;
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+time_t RiaTimeTTools::fromQDateTime( const QDateTime& dateTime )
+{
+    time_t timet = dateTime.toSecsSinceEpoch();
+    return timet;
+}

ApplicationCode/Application/Tools/RiaTimeTTools.h

@@ -0,0 +1,34 @@
+/////////////////////////////////////////////////////////////////////////////////
+//
+//  Copyright (C) 2020 Equinor ASA
+//
+//  ResInsight is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.
+//
+//  See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
+//  for more details.
+//
+/////////////////////////////////////////////////////////////////////////////////
+
+#pragma once
+
+#include <ctime>
+
+class QDateTime;
+
+//==================================================================================================
+//
+//==================================================================================================
+class RiaTimeTTools
+{
+public:
+    static double toDouble( time_t time );
+    static time_t fromDouble( double time );
+    static time_t fromQDateTime( const QDateTime& dateTime );
+};

ApplicationCode/UserInterface/RiuQwtPlotCurve.cpp

@@ -21,6 +21,7 @@
 
 #include "RiaCurveDataTools.h"
 #include "RiaImageTools.h"
+#include "RiaTimeTTools.h"
 
 #include "RiuQwtSymbol.h"
 
@@ -392,11 +393,7 @@ std::vector<double> RiuQwtPlotCurve::fromTime_t( const std::vector<time_t>& time
         doubleValues.reserve( timeSteps.size() );
         for ( const auto& time : timeSteps )
         {
-            double milliSecSinceEpoch = time * 1000; // This is kind of hack, as the c++ standard does not state what
-                                                     // time_t is. "Almost always" secs since epoch according to
-                                                     // cppreference.com
-
-            doubleValues.push_back( milliSecSinceEpoch );
+            doubleValues.push_back( RiaTimeTTools::toDouble( time ) );
         }
     }