scroll_region.h

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#pragma once
 
#include "di/reflect/prelude.h"
#include "di/types/prelude.h"
 
namespace ttx::terminal {
struct ScrollRegion {
    u32 start_row { 0 }; 
    u32 end_row { 0 };   
 
    // Delete the default constructor because the default scroll region depends on the
    // terminal size.
    ScrollRegion() = delete;
 
    constexpr ScrollRegion(u32 start_row, u32 end_row) : start_row(start_row), end_row(end_row) {}
 
    auto operator==(ScrollRegion const&) const -> bool = default;
    auto operator<=>(ScrollRegion const&) const = default;
 
    constexpr friend auto tag_invoke(di::Tag<di::reflect>, di::InPlaceType<ScrollRegion>) {
        return di::make_fields<"ScrollRegion">(di::field<"start_row", &ScrollRegion::start_row>,
                                               di::field<"end_row", &ScrollRegion::end_row>);
    }
};
}