Update to C++ 20 for gin, and fix formatting issues with the new fmt …

…library.

CMakeLists.txt

@@ -19,7 +19,8 @@ project(KnobKraft_Orm)
 option(ASAN "Use Address Sanitization for Debug version (Windows only for now)" OFF)
 
 # Since we also build MacOS, we need C++ 17. Which is not a bad thing.
-set(CMAKE_CXX_STANDARD 17)
+# Gin requests C++ 20.
+set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 add_definitions(-D_SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING)
 

The-Orm/PatchListTree.cpp

@@ -674,7 +674,7 @@ TreeViewNode* PatchListTree::newTreeViewItemForPatchList(midikraft::ListInfo lis
 				// Add all patches of the dragged list to the target ist
 				auto loaded_list = db_.getPatchList({ infos["list_id"], infos["list_name"] }, synths_);
 				if (AlertWindow::showOkCancelBox(AlertWindow::AlertIconType::QuestionIcon, "Add list to list?"
-					, fmt::format("This will add all {} patches of the list '{}' to the list '{}' at the given position. Continue?", loaded_list->patches().size(), infos["list_name"], list.name
+					, fmt::format("This will add all {} patches of the list '{}' to the list '{}' at the given position. Continue?", loaded_list->patches().size(), (std::string) infos["list_name"], list.name
 					))) {
 					for (auto& patch : loaded_list->patches()) {
 						db_.addPatchToList(list, patch, insertIndex++);

synths/kawai-k3/KawaiK3_BCR2000.cpp

@@ -13,6 +13,7 @@
 #include "KawaiK3WaveParameter.h"
 
 #include <fmt/format.h>
+#include "SpdLogJuce.h"
 
 namespace midikraft {
 
@@ -140,7 +141,7 @@ namespace midikraft {
 					"  .showvalue on\n"
 					"  .resolution {} {} {} {}\n"
 				 , number_ , paramDef->name()
-					, (knobkraftChannel + 1) , paramDef->paramNo() , 0 , paramDef->maxValue()
+					, (knobkraftChannel + 1) , (int)paramDef->paramNo() , 0 , paramDef->maxValue()
 					//% (channel & 0x0f) % param_ 
 					//% paramDef->maxValue() 
 					, 0 , BCRdefinition::ledMode(ledMode_)