case insensitive sort for filament vendor list (#6594)

* case insensitive sort for filament vendor list

* Merge branch 'main' into case-insensitive-filament-vendor-sort

src/slic3r/GUI/CreatePresetsDialog.cpp

@@ -143,6 +143,15 @@ static bool str_is_all_digit(const std::string &str) {
     return true; 
 }
 
+// Custom comparator for case-insensitive sorting
+static bool caseInsensitiveCompare(const std::string& a, const std::string& b) {
+    std::string lowerA = a;
+    std::string lowerB = b;
+    std::transform(lowerA.begin(), lowerA.end(), lowerA.begin(), ::tolower);
+    std::transform(lowerB.begin(), lowerB.end(), lowerB.begin(), ::tolower);
+    return lowerA < lowerB;
+}
+
 static bool delete_filament_preset_by_name(std::string delete_preset_name, std::string &selected_preset_name)
 {
     BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format("select preset, name %1%") % delete_preset_name;
@@ -692,11 +701,19 @@ wxBoxSizer *CreateFilamentPresetDialog::create_vendor_item()
     optionSizer->SetMinSize(OPTION_SIZE);
     horizontal_sizer->Add(optionSizer, 0, wxEXPAND | wxALL | wxALIGN_CENTER_VERTICAL, FromDIP(5)); 
 
-    wxArrayString choices;
+    // Convert all std::any to std::string
-    for (const wxString vendor : filament_vendors) {
+    std::vector<std::string> string_vendors;
-        choices.push_back(vendor);
+    for (const auto& vendor_any : filament_vendors) {
+        string_vendors.push_back(std::any_cast<std::string>(vendor_any));
+    }
+
+    // Sort the vendors alphabetically
+    std::sort(string_vendors.begin(), string_vendors.end(), caseInsensitiveCompare);
+
+    wxArrayString choices;
+    for (const std::string &vendor : string_vendors) {
+        choices.push_back(wxString(vendor)); // Convert std::string to wxString before adding
     }
-    choices.Sort();
 
     wxBoxSizer *vendor_sizer   = new wxBoxSizer(wxHORIZONTAL);
     m_filament_vendor_combobox = new ComboBox(this, wxID_ANY, wxEmptyString, wxDefaultPosition, NAME_OPTION_COMBOBOX_SIZE, 0, nullptr, wxCB_READONLY);