QRCodeView.h

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#pragma once
 
#include "cdc_ui/IView.h"
#include <cstdint>
 
namespace cdc::ui {

class QRCodeView : public ViewBase {
public:
    void init(const char* data, const char* title = nullptr, const char* subtitle = nullptr);

    void setHint(const char* hint) { customHint_ = hint; }
 
    // IView implementation
    void render(bool partial) override;
    InputResult onKey(char key) override;
    const char* getName() const override { return "QRCodeView"; }
    const char* getFooterHint() const override;
 
private:
    const char* data_ = nullptr;
    const char* title_ = nullptr;
    const char* subtitle_ = nullptr;
    const char* customHint_ = nullptr;
 
    // QR code sizing
    int qrModuleCount_ = 0;
    int qrScale_ = 1;
    int qrOffsetX_ = 0;
    int qrOffsetY_ = 0;
 
    void calculateLayout();
    void renderQrCode();
    void renderText();
};
 
// ============================================================================
// Convenience Functions
// ============================================================================

QRCodeView* showQRCode(const char* data, const char* title = nullptr,
                       const char* subtitle = nullptr, const char* hint = nullptr);
 
} // namespace cdc::ui