From 8491872fb78d6d2ae1d335ca0dcbfb3e3a06c063 Mon Sep 17 00:00:00 2001
From: enricoturri1966 <enricoturri@seznam.cz>
Date: Thu, 5 Nov 2020 14:02:43 +0100
Subject: [PATCH] #5079 - Fixed GCode Viewer changing files modified date on
 Windows

---
 src/libslic3r/GCode.cpp                | 2 +-
 src/libslic3r/GCode/GCodeProcessor.cpp | 5 +++--
 src/libslic3r/GCode/GCodeProcessor.hpp | 2 +-
 src/slic3r/GUI/Plater.cpp              | 2 +-
 4 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/libslic3r/GCode.cpp b/src/libslic3r/GCode.cpp
index 7f3843646a..b017e2f527 100644
--- a/src/libslic3r/GCode.cpp
+++ b/src/libslic3r/GCode.cpp
@@ -761,7 +761,7 @@ void GCode::do_export(Print* print, const char* path, GCodePreviewData* preview_
 
 #if ENABLE_GCODE_VIEWER
     BOOST_LOG_TRIVIAL(debug) << "Start processing gcode, " << log_memory_info();
-    m_processor.process_file(path_tmp, [print]() { print->throw_if_canceled(); });
+    m_processor.process_file(path_tmp, true, [print]() { print->throw_if_canceled(); });
     DoExport::update_print_estimated_times_stats(m_processor, print->m_print_statistics);
     if (result != nullptr)
         *result = std::move(m_processor.extract_result());
diff --git a/src/libslic3r/GCode/GCodeProcessor.cpp b/src/libslic3r/GCode/GCodeProcessor.cpp
index a1c9c688d3..a5a186f926 100644
--- a/src/libslic3r/GCode/GCodeProcessor.cpp
+++ b/src/libslic3r/GCode/GCodeProcessor.cpp
@@ -750,7 +750,7 @@ void GCodeProcessor::reset()
 #endif // ENABLE_GCODE_VIEWER_DATA_CHECKING
 }
 
-void GCodeProcessor::process_file(const std::string& filename, std::function<void()> cancel_callback)
+void GCodeProcessor::process_file(const std::string& filename, bool apply_postprocess, std::function<void()> cancel_callback)
 {
     auto last_cancel_callback_time = std::chrono::high_resolution_clock::now();
 
@@ -808,7 +808,8 @@ void GCodeProcessor::process_file(const std::string& filename, std::function<voi
     update_estimated_times_stats();
 
     // post-process to add M73 lines into the gcode
-    m_time_processor.post_process(filename);
+    if (apply_postprocess)
+        m_time_processor.post_process(filename);
 
 #if ENABLE_GCODE_VIEWER_DATA_CHECKING
     std::cout << "\n";
diff --git a/src/libslic3r/GCode/GCodeProcessor.hpp b/src/libslic3r/GCode/GCodeProcessor.hpp
index 5f9c4ae450..3cb0a8d938 100644
--- a/src/libslic3r/GCode/GCodeProcessor.hpp
+++ b/src/libslic3r/GCode/GCodeProcessor.hpp
@@ -433,7 +433,7 @@ namespace Slic3r {
 
         // Process the gcode contained in the file with the given filename
         // throws CanceledException through print->throw_if_canceled() (sent by the caller as callback).
-        void process_file(const std::string& filename, std::function<void()> cancel_callback = nullptr);
+        void process_file(const std::string& filename, bool apply_postprocess, std::function<void()> cancel_callback = nullptr);
 
         float get_time(PrintEstimatedTimeStatistics::ETimeMode mode) const;
         std::string get_time_dhm(PrintEstimatedTimeStatistics::ETimeMode mode) const;
diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index 4063b22e74..7ddeba6c68 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -4740,7 +4740,7 @@ void Plater::load_gcode(const wxString& filename)
     GCodeProcessor processor;
     processor.enable_producers(true);
     processor.enable_machine_envelope_processing(true);
-    processor.process_file(filename.ToUTF8().data());
+    processor.process_file(filename.ToUTF8().data(), false);
     p->gcode_result = std::move(processor.extract_result());
 
     // show results