transform3d.hpp

// DO NOT EDIT! This file was auto-generated by crates/re_types_builder/src/codegen/cpp/mod.rs
// Based on "crates/re_types/definitions/rerun/datatypes/transform3d.fbs".
 
#pragma once
 
#include "../result.hpp"
#include "translation_and_mat3x3.hpp"
#include "translation_rotation_scale3d.hpp"
 
#include <cstdint>
#include <cstring>
#include <memory>
#include <new>
#include <utility>
 
namespace arrow {
    class Array;
    class DataType;
    class DenseUnionBuilder;
} // namespace arrow
 
namespace rerun::datatypes {
    namespace detail {
        /// \private
        enum class Transform3DTag : uint8_t {
            /// Having a special empty state makes it possible to implement move-semantics. We need to be able to leave the object in a state which we can run the destructor on.
            None = 0,
            TranslationAndMat3x3,
            TranslationRotationScale,
        };
 
        /// \private
        union Transform3DData {
            rerun::datatypes::TranslationAndMat3x3 translation_and_mat3x3;
 
            rerun::datatypes::TranslationRotationScale3D translation_rotation_scale;
 
            Transform3DData() {
                std::memset(reinterpret_cast<void*>(this), 0, sizeof(Transform3DData));
            }
 
            ~Transform3DData() {}
 
            void swap(Transform3DData& other) noexcept {
                // This bitwise swap would fail for self-referential types, but we don't have any of those.
                char temp[sizeof(Transform3DData)];
                void* otherbytes = reinterpret_cast<void*>(&other);
                void* thisbytes = reinterpret_cast<void*>(this);
                std::memcpy(temp, thisbytes, sizeof(Transform3DData));
                std::memcpy(thisbytes, otherbytes, sizeof(Transform3DData));
                std::memcpy(otherbytes, temp, sizeof(Transform3DData));
            }
        };
    } // namespace detail
 
    /// **Datatype**: Representation of a 3D affine transform.
    struct Transform3D {
        Transform3D() : _tag(detail::Transform3DTag::None) {}
 
        /// Copy constructor
        Transform3D(const Transform3D& other) : _tag(other._tag) {
            const void* otherbytes = reinterpret_cast<const void*>(&other._data);
            void* thisbytes = reinterpret_cast<void*>(&this->_data);
            std::memcpy(thisbytes, otherbytes, sizeof(detail::Transform3DData));
        }
 
        Transform3D& operator=(const Transform3D& other) noexcept {
            Transform3D tmp(other);
            this->swap(tmp);
            return *this;
        }
 
        Transform3D(Transform3D&& other) noexcept : Transform3D() {
            this->swap(other);
        }
 
        Transform3D& operator=(Transform3D&& other) noexcept {
            this->swap(other);
            return *this;
        }
 
        void swap(Transform3D& other) noexcept {
            std::swap(this->_tag, other._tag);
            this->_data.swap(other._data);
        }
 
        Transform3D(rerun::datatypes::TranslationAndMat3x3 translation_and_mat3x3) : Transform3D() {
            *this = Transform3D::translation_and_mat3x3(std::move(translation_and_mat3x3));
        }
 
        Transform3D(rerun::datatypes::TranslationRotationScale3D translation_rotation_scale)
            : Transform3D() {
            *this = Transform3D::translation_rotation_scale(std::move(translation_rotation_scale));
        }
 
        static Transform3D translation_and_mat3x3(
            rerun::datatypes::TranslationAndMat3x3 translation_and_mat3x3
        ) {
            Transform3D self;
            self._tag = detail::Transform3DTag::TranslationAndMat3x3;
            new (&self._data.translation_and_mat3x3)
                rerun::datatypes::TranslationAndMat3x3(std::move(translation_and_mat3x3));
            return self;
        }
 
        static Transform3D translation_rotation_scale(
            rerun::datatypes::TranslationRotationScale3D translation_rotation_scale
        ) {
            Transform3D self;
            self._tag = detail::Transform3DTag::TranslationRotationScale;
            new (&self._data.translation_rotation_scale)
                rerun::datatypes::TranslationRotationScale3D(std::move(translation_rotation_scale));
            return self;
        }
 
        /// Return a pointer to translation_and_mat3x3 if the union is in that state, otherwise `nullptr`.
        const rerun::datatypes::TranslationAndMat3x3* get_translation_and_mat3x3() const {
            if (_tag == detail::Transform3DTag::TranslationAndMat3x3) {
                return &_data.translation_and_mat3x3;
            } else {
                return nullptr;
            }
        }
 
        /// Return a pointer to translation_rotation_scale if the union is in that state, otherwise `nullptr`.
        const rerun::datatypes::TranslationRotationScale3D* get_translation_rotation_scale() const {
            if (_tag == detail::Transform3DTag::TranslationRotationScale) {
                return &_data.translation_rotation_scale;
            } else {
                return nullptr;
            }
        }
 
        /// \private
        const detail::Transform3DData& get_union_data() const {
            return _data;
        }
 
        /// \private
        detail::Transform3DTag get_union_tag() const {
            return _tag;
        }
 
      private:
        detail::Transform3DTag _tag;
        detail::Transform3DData _data;
    };
} // namespace rerun::datatypes
 
namespace rerun {
    template <typename T>
    struct Loggable;
 
    /// \private
    template <>
    struct Loggable<datatypes::Transform3D> {
        static constexpr const char Name[] = "rerun.datatypes.Transform3D";
 
        /// Returns the arrow data type this type corresponds to.
        static const std::shared_ptr<arrow::DataType>& arrow_datatype();
 
        /// Fills an arrow array builder with an array of this type.
        static rerun::Error fill_arrow_array_builder(
            arrow::DenseUnionBuilder* builder, const datatypes::Transform3D* elements,
            size_t num_elements
        );
 
        /// Serializes an array of `rerun::datatypes::Transform3D` into an arrow array.
        static Result<std::shared_ptr<arrow::Array>> to_arrow(
            const datatypes::Transform3D* instances, size_t num_instances
        );
    };
} // namespace rerun