Unified type popup: explicit TypeEntry model, modifier toggles, section headers

- Replace sentinel-id scheme (kPrimBase) with TypeEntry::Kind discriminant
- Merge showTypeSelectorPopup + showTypePickerPopup into single showTypePopup
- Merge applyTypePickerResult into applyTypePopupResult matching on entryKind
- Add modifier toggle buttons (plain, *, **, [n]) with array count input
- Add section headers (primitives / project types) with dim centered styling
- Root mode shows project types first; non-Root sorts same-size primitives first
- Remove popup outside border, flat "Create new type" button
- Add parseTypeSpec parser, update tests with new TypeEntry API

src/typeselectorpopup.h

@@ -4,21 +4,47 @@
 #include <QVector>
 #include <QString>
 #include <cstdint>
+#include "core.h"
 
 class QLineEdit;
 class QListView;
 class QStringListModel;
 class QLabel;
 class QToolButton;
+class QButtonGroup;
+class QWidget;
 
 namespace rcx {
 
+// ── Popup mode ──
+
+enum class TypePopupMode { Root, FieldType, ArrayElement, PointerTarget };
+
+// ── Type entry (explicit discriminant — no sentinel IDs) ──
+
 struct TypeEntry {
-    uint64_t id            = 0;
-    QString  displayName;
-    QString  classKeyword;   // "struct", "class", or "enum"
+    enum Kind { Primitive, Composite, Section };
+
+    Kind        entryKind     = Primitive;
+    NodeKind    primitiveKind = NodeKind::Hex8;  // valid when entryKind==Primitive
+    uint64_t    structId      = 0;               // valid when entryKind==Composite
+    QString     displayName;
+    QString     classKeyword;                    // "struct", "class", "enum" (Composite only)
+    bool        enabled       = true;            // false = grayed out (visible but not selectable)
 };
 
+// ── Parsed type spec (shared between popup filter and inline edit) ──
+
+struct TypeSpec {
+    QString baseName;
+    bool    isPointer  = false;
+    int     arrayCount = 0;       // 0 = not array
+};
+
+TypeSpec parseTypeSpec(const QString& text);
+
+// ── Popup widget ──
+
 class TypeSelectorPopup : public QFrame {
     Q_OBJECT
 public:
@@ -26,11 +52,16 @@ public:
 
     void setFont(const QFont& font);
     void setTitle(const QString& title);
-    void setTypes(const QVector<TypeEntry>& types, uint64_t currentId);
+    void setMode(TypePopupMode mode);
+    void setCurrentNodeSize(int bytes);
+    void setTypes(const QVector<TypeEntry>& types, const TypeEntry* current = nullptr);
     void popup(const QPoint& globalPos);
 
+    /// Force native window creation to avoid cold-start delay.
+    void warmUp();
+
 signals:
-    void typeSelected(uint64_t id, const QString& displayName);
+    void typeSelected(const TypeEntry& entry, const QString& fullText);
     void createNewTypeRequested();
     void dismissed();
 
@@ -43,17 +74,32 @@ private:
     QToolButton*      m_escLabel     = nullptr;
     QToolButton*      m_createBtn    = nullptr;
     QLineEdit*        m_filterEdit   = nullptr;
+    QLabel*           m_previewLabel = nullptr;
     QListView*        m_listView     = nullptr;
     QStringListModel* m_model        = nullptr;
 
+    // Modifier toggles
+    QWidget*          m_modRow       = nullptr;
+    QToolButton*      m_btnPlain     = nullptr;
+    QToolButton*      m_btnPtr       = nullptr;
+    QToolButton*      m_btnDblPtr    = nullptr;
+    QToolButton*      m_btnArray     = nullptr;
+    QLineEdit*        m_arrayCountEdit = nullptr;
+    QButtonGroup*     m_modGroup     = nullptr;
+
     QVector<TypeEntry> m_allTypes;
     QVector<TypeEntry> m_filteredTypes;
-    uint64_t           m_currentId = 0;
+    TypeEntry          m_currentEntry;
+    bool               m_hasCurrent = false;
+    TypePopupMode      m_mode = TypePopupMode::FieldType;
+    int                m_currentNodeSize = 0;
     QFont              m_font;
 
     void applyFilter(const QString& text);
+    void updateModifierPreview();
     void acceptCurrent();
     void acceptIndex(int row);
+    int  nextSelectableRow(int from, int direction) const;
 };
 
 } // namespace rcx