From 8da7ef41c0186dd685568b24a9505093be03067b Mon Sep 17 00:00:00 2001
From: Vojtech Kral <vojtech@kral.hk>
Date: Fri, 8 Feb 2019 10:33:07 +0100
Subject: [PATCH] Infer printer family for pre-existing printers

---
 src/slic3r/GUI/Preset.cpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/slic3r/GUI/Preset.cpp b/src/slic3r/GUI/Preset.cpp
index 4e2a747596..19626847f4 100644
--- a/src/slic3r/GUI/Preset.cpp
+++ b/src/slic3r/GUI/Preset.cpp
@@ -14,6 +14,7 @@
 #include <algorithm>
 #include <fstream>
 #include <stdexcept>
+#include <unordered_map>
 #include <boost/format.hpp>
 #include <boost/filesystem.hpp>
 #include <boost/filesystem/fstream.hpp>
@@ -84,6 +85,16 @@ VendorProfile VendorProfile::from_ini(const boost::filesystem::path &path, bool
     return VendorProfile::from_ini(tree, path, load_all);
 }
 
+static const std::unordered_map<std::string, std::string> pre_family_model_map {{
+    { "MK3",        "MK3" },
+    { "MK3MMU2",    "MK3" },
+    { "MK2.5",      "MK2.5" },
+    { "MK2.5MMU2",  "MK2.5" },
+    { "MK2S",       "MK2" },
+    { "MK2SMM",     "MK2" },
+    { "SL1",        "SL1" },
+}};
+
 VendorProfile VendorProfile::from_ini(const ptree &tree, const boost::filesystem::path &path, bool load_all)
 {
     static const std::string printer_model_key = "printer_model:";
@@ -139,6 +150,11 @@ VendorProfile VendorProfile::from_ini(const ptree &tree, const boost::filesystem
             }
 
             model.family = section.second.get<std::string>("family", std::string());
+            if (model.family.empty() && res.name == "Prusa Research") {
+                // If no family is specified, it can be inferred for known printers
+                const auto from_pre_map = pre_family_model_map.find(model.id);
+                if (from_pre_map != pre_family_model_map.end()) { model.family = from_pre_map->second; }
+            }
 #if 0
 			// Remove SLA printers from the initial alpha.
 			if (model.technology == ptSLA)