StudioSetupWidget: Use std::array where applicable

Makes the type of the array strongly-typed.

Editor/StudioSetupWidget.hpp

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <array>
 #include <string>
 
 #include <QLabel>
@@ -28,22 +29,30 @@ enum class EffectType;
 
 struct EffectIntrospection {
   struct Field {
-    enum class Type { Invalid, UInt32, UInt32x8, Float };
-    Type m_tp;
+    enum class Type {
+      Invalid,
+      UInt32,
+      UInt32x8,
+      Float,
+    };
+
+    Type m_tp{};
     std::string_view m_name;
-    float m_min, m_max, m_default;
+    float m_min{};
+    float m_max{};
+    float m_default{};
   };
   amuse::EffectType m_tp;
   std::string_view m_name;
   std::string_view m_description;
-  Field m_fields[7];
+  std::array<Field, 7> m_fields;
 };
 
 class Uint32X8Popup : public QFrame {
   Q_OBJECT
-  FieldSlider* m_sliders[8];
-
 public:
+  static constexpr int NumSliders = 8;
+
   explicit Uint32X8Popup(int min, int max, QWidget* parent = Q_NULLPTR);
   ~Uint32X8Popup() override;
 
@@ -54,6 +63,9 @@ private slots:
 
 signals:
   void valueChanged(int chanIdx, int val);
+
+private:
+  std::array<FieldSlider*, NumSliders> m_sliders;
 };
 
 class Uint32X8Button : public QPushButton {
@@ -187,7 +199,7 @@ class StudioSetupWidget : public QWidget {
   friend class EffectCatalogue;
   QSplitter* m_splitter;
   QTabWidget* m_tabs;
-  EffectListing* m_listing[2];
+  std::array<EffectListing*, 2> m_listing{};
   EffectCatalogue* m_catalogue;
   EffectWidget* m_draggedCmd = nullptr;
   EffectCatalogueItem* m_draggedItem = nullptr;