ImHex/plugins/builtin/source/content/tools/byte_swapper.cpp

#include <hex/api/localization_manager.hpp>

#include <hex/ui/view.hpp>

#include <algorithm>

#include <content/tools_entries.hpp>

#include <imgui.h>

#include <hex/ui/imgui_imhex_extensions.h>

namespace hex::plugin::builtin {
    namespace impl {
        void drawByteSwapper() {
            static std::string input, buffer, output;

            if (ImGuiExt::InputTextIcon("hex.builtin.tools.input"_lang, ICON_VS_SYMBOL_NUMERIC, input, ImGuiInputTextFlags_CharsHexadecimal)) {
                auto nextAlignedSize = std::max<size_t>(2, std::bit_ceil(input.size()));

                buffer.clear();
                buffer.resize(nextAlignedSize - input.size(), '0');
                buffer += input;

                output.clear();
                for (u32 i = 0; i < buffer.size(); i += 2) {
                    output += buffer[buffer.size() - i - 2];
                    output += buffer[buffer.size() - i - 1];
                }
            }

            ImGui::PushStyleVar(ImGuiStyleVar_Alpha, ImGui::GetStyle().DisabledAlpha);
            ImGuiExt::InputTextIcon("hex.builtin.tools.output"_lang, ICON_VS_SYMBOL_NUMERIC, output, ImGuiInputTextFlags_ReadOnly);
            ImGui::PopStyleVar();
        }
    }
}