From f15d61d059dfcd1106781aa2e55563e868f44887 Mon Sep 17 00:00:00 2001
From: Matt Firth <matt.firth@bbc.co.uk>
Date: Fri, 6 Oct 2023 17:28:43 +0100
Subject: [PATCH] Impl DAW channel count UI changes in DS plugin

---
 .../src/direct_speakers_frontend_connector.cpp            | 3 ++-
 .../src/direct_speakers_plugin_processor.cpp              | 8 ++++++--
 .../src/direct_speakers_plugin_processor.hpp              | 4 ++++
 3 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/ear-production-suite-plugins/plugins/direct_speakers/src/direct_speakers_frontend_connector.cpp b/ear-production-suite-plugins/plugins/direct_speakers/src/direct_speakers_frontend_connector.cpp
index e5706ffef..fac02a63b 100644
--- a/ear-production-suite-plugins/plugins/direct_speakers/src/direct_speakers_frontend_connector.cpp
+++ b/ear-production-suite-plugins/plugins/direct_speakers/src/direct_speakers_frontend_connector.cpp
@@ -188,7 +188,8 @@ void DirectSpeakersJuceFrontendConnector::setSpeakerSetup(
     routingComboBoxLocked->clearEntries();
     auto layoutSizeFixed = layoutSize != 0 ? layoutSize - 1 : layoutSize;
     for (int i = 1; i + layoutSizeFixed <= MAX_DAW_CHANNELS; ++i) {
-      routingComboBoxLocked->addTextEntry(routingLayoutDescriptionAt(i, layoutSizeFixed));
+      auto entry = routingComboBoxLocked->addTextEntry(routingLayoutDescriptionAt(i, layoutSizeFixed), i);
+      entry->setSelectable(i + layoutSizeFixed <= p_->getNumDawChannels());
     }
     routingComboBoxLocked->selectEntry(cachedRouting_, sendNotification);
   }
diff --git a/ear-production-suite-plugins/plugins/direct_speakers/src/direct_speakers_plugin_processor.cpp b/ear-production-suite-plugins/plugins/direct_speakers/src/direct_speakers_plugin_processor.cpp
index 29156308d..a4faa6e77 100644
--- a/ear-production-suite-plugins/plugins/direct_speakers/src/direct_speakers_plugin_processor.cpp
+++ b/ear-production-suite-plugins/plugins/direct_speakers/src/direct_speakers_plugin_processor.cpp
@@ -5,8 +5,6 @@
 #include "direct_speakers_plugin_editor.hpp"
 #include "direct_speakers_frontend_connector.hpp"
 
-#include <daw_channel_count.h>
-
 void registerPluginLoadSig(std::function<void(std::string const&)>);
 uint32_t requestInputInstanceIdSig();
 
@@ -213,6 +211,12 @@ void DirectSpeakersAudioProcessor::setIHostApplication(Steinberg::FUnknown * unk
         this->extensionSetState(xmlState);
       });
     }
+
+    auto getAppVersionPtr = reaperHost->getReaperApi("GetAppVersion");
+    numDawChannels_ = MAX_DAW_CHANNELS;
+    if (getAppVersionPtr) {
+      numDawChannels_ = GetReaperChannelCount(getAppVersionPtr);
+    }
   }
 }
 
diff --git a/ear-production-suite-plugins/plugins/direct_speakers/src/direct_speakers_plugin_processor.hpp b/ear-production-suite-plugins/plugins/direct_speakers/src/direct_speakers_plugin_processor.hpp
index 0c67d507e..d5b49fce5 100644
--- a/ear-production-suite-plugins/plugins/direct_speakers/src/direct_speakers_plugin_processor.hpp
+++ b/ear-production-suite-plugins/plugins/direct_speakers/src/direct_speakers_plugin_processor.hpp
@@ -6,6 +6,7 @@
 #include "components/level_meter_calculator.hpp"
 #include "reaper_vst3_interfaces.h"
 #include "components/read_only_audio_parameter_int.hpp"
+#include <daw_channel_count.h>
 
 #include <memory>
 
@@ -72,6 +73,8 @@ class DirectSpeakersAudioProcessor : public AudioProcessor, public VST3ClientExt
   void setIHostApplication(Steinberg::FUnknown *unknown) override;
   void extensionSetState(std::string const& xmlState);
 
+  int getNumDawChannels() { return numDawChannels_; }
+
  private:
   IReaperHostApplication* reaperHost{ nullptr };
   ear::plugin::communication::ConnectionId connectionId_;
@@ -87,6 +90,7 @@ class DirectSpeakersAudioProcessor : public AudioProcessor, public VST3ClientExt
   std::unique_ptr<ear::plugin::DirectSpeakersBackend> backend_;
 
   int samplerate_;
+  int numDawChannels_{MAX_DAW_CHANNELS};
   std::shared_ptr<ear::plugin::LevelMeterCalculator> levelMeter_;
 
   JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(DirectSpeakersAudioProcessor)