qt_adapter.hpp

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#pragma once
 
#include "aria/abi/export.hpp"
#include "aria/binding/binding_engine.hpp"
#include "aria/binding/view_adapter.hpp"
#include "qt_view.hpp"
 
#include <cstdint>
#include <memory>
#include <stdexcept>
 
namespace aria::adapters::qt6 {

class ARIA_QT6_API QtAdapter final : public binding::IViewAdapter {
public:
    QtAdapter();
    ~QtAdapter() override;
 
    [[nodiscard]] std::string_view platform_name() const noexcept override {
        return "qt6";
    }
 
    // ── Handle → IView ─────────────────────────────────────────────────────
    [[nodiscard]] QtView& view_for(QObject* obj);
 
    // ── Text ───────────────────────────────────────────────────────────────
    void set_text(binding::IView& v, std::string_view text) override;
    [[nodiscard]] std::string get_text(binding::IView& v) override;
    ::aria::Subscription on_text_changed(binding::IView& v,
                                     std::function<void(std::string_view)> cb) override;
 
    // ── Bool ───────────────────────────────────────────────────────────────
    void set_bool(binding::IView& v, bool value) override;
    [[nodiscard]] bool get_bool(binding::IView& v) override;
    ::aria::Subscription on_bool_changed(binding::IView& v,
                                     std::function<void(bool)> cb) override;
 
    // ── Int ────────────────────────────────────────────────────────────────
    void set_int(binding::IView& v, int value) override;
    [[nodiscard]] int get_int(binding::IView& v) override;
    ::aria::Subscription on_int_changed(binding::IView& v,
                                    std::function<void(int)> cb) override;
 
    // ── Int64 ──────────────────────────────────────────────────────────────
    // Qt widgets don't speak int64 natively; these forward to set_int/get_int
    // with saturating conversion and a diagnostic on overflow. Hosts that need the
    // full 64-bit range (timestamps, big IDs) should use a QLineEdit bound
    // via bind_text_converted with a user-supplied string<->int64 converter.
    void set_int64(binding::IView& v, std::int64_t value) override;
    [[nodiscard]] std::int64_t get_int64(binding::IView& v) override;
    ::aria::Subscription on_int64_changed(binding::IView& v,
                                      std::function<void(std::int64_t)> cb) override;
 
    // ── UInt64 ─────────────────────────────────────────────────────────────
    // Same forwarding strategy as int64 — Qt numeric widgets top out at int.
    void set_uint64(binding::IView& v, std::uint64_t value) override;
    [[nodiscard]] std::uint64_t get_uint64(binding::IView& v) override;
    ::aria::Subscription on_uint64_changed(binding::IView& v,
                                       std::function<void(std::uint64_t)> cb) override;
 
    // ── Float ──────────────────────────────────────────────────────────────
    // Forwards to set_double/get_double; the narrowing is harmless for the
    // QDoubleSpinBox range.
    void set_float(binding::IView& v, float value) override;
    [[nodiscard]] float get_float(binding::IView& v) override;
    ::aria::Subscription on_float_changed(binding::IView& v,
                                      std::function<void(float)> cb) override;
 
    // ── Double ─────────────────────────────────────────────────────────────
    void set_double(binding::IView& v, double value) override;
    [[nodiscard]] double get_double(binding::IView& v) override;
    ::aria::Subscription on_double_changed(binding::IView& v,
                                       std::function<void(double)> cb) override;
 
    // ── Visibility / enabled ───────────────────────────────────────────────
    void set_visible(binding::IView& v, bool visible) override;
    void set_enabled(binding::IView& v, bool enabled) override;
 
    // ── Click ──────────────────────────────────────────────────────────────
    ::aria::Subscription on_click(binding::IView& v, std::function<void()> cb) override;
 
private:
    struct Impl;
    std::shared_ptr<Impl> p_;
};
 
}  // namespace aria::adapters::qt6