S4 Tier 0: the bank plays — VST3 marshals MIDI to the S3 core, reads the live bank + resolves WAV the M4 way, mono downmix, lock-free load handoff, LICE sample-pick

src/vst/reasampler_editor.h

@@ -13,21 +13,27 @@
 
 #pragma once
 
+#include <string>
+#include <vector>
+
 #include "public.sdk/source/common/pluginview.h"
 
+#include "sample_map.h"  // SampleChoice (the list the editor draws)
+
 #ifdef _WIN32
 #include <windows.h>
 #endif
 
 namespace reasampler::vst {
 
-class ReaperBridge;
+class ReaSamplerProcessor;
 
 class ReaSamplerEditor : public Steinberg::CPluginView {
 public:
-    // `bridge` is owned by the processor and outlives the editor; the editor reads
-    // (never mutates) it to show a live-state readout. May be null (non-REAPER host).
-    explicit ReaSamplerEditor(ReaperBridge* bridge);
+    // `processor` owns this editor's lifetime domain and outlives it; the editor reads
+    // the live bank through it (the sample list) and drives selection + reload when the
+    // user clicks a row. May be null (defensive — a real host always supplies one).
+    explicit ReaSamplerEditor(ReaSamplerProcessor* processor);
     ~ReaSamplerEditor() override;
 
     // Accept only the Windows HWND platform type (D5: Windows-only).
@@ -48,7 +54,7 @@ private:
 #ifdef _WIN32
     // Draw the current surface into the child window's DC via a LICE bitmap.
     void paint(HDC hdc);
-    // Route a client-space click through editor_geometry::hitTest.
+    // Route a client-space click: select the sample row under (x, y), if any.
     void onClick(int x, int y);
 
     static LRESULT CALLBACK wndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
@@ -56,10 +62,16 @@ private:
     HWND childHwnd_ = nullptr;
 #endif
 
-    ReaperBridge* bridge_ = nullptr;
-    // Latched on click so the paint reflects the last hit-test result — the spike's
-    // proof that host->click->draw routing round-trips.
-    bool buttonHit_ = false;
+    // Re-read the bank's sample list from the live bridge into `samples_`. Main/UI
+    // thread only (reads ext-state); called on attach and after a selection reload.
+    void refreshSampleList();
+
+    ReaSamplerProcessor* processor_ = nullptr;
+    // The bank's samples, snapshotted for the current paint. Refreshed off the audio
+    // thread; the paint just draws it.
+    std::vector<SampleChoice> samples_;
+    // The currently-selected sample id, mirrored for the paint's highlight.
+    std::string selectedId_;
 };
 
 }  // namespace reasampler::vst