Class AidaModelListWidget

plugins/Cardinal/src/AIDA-X.cpp:663–798

#ifndef HEADLESS
struct AidaModelListWidget : ImGuiWidget {
    AidaPluginModule* const module;

    struct ghcFile {
        std::string full, base;
        bool operator<(const ghcFile& other) const noexcept { return base < other.base; }
    };
    std::string currentDirectory;
    std::vector<ghcFile> currentFiles;
    size_t selectedFile = (size_t)-1;

    AidaModelListWidget(AidaPluginModule* const m)
        : ImGuiWidget(),
          module(m)
    {
        if (module != nullptr && module->fileChanged)
            reloadDir();
    }

    void drawImGui() override
    {
        const float scaleFactor = getScaleFactor();

        // transparent background
        {
            ImGuiStyle& style(ImGui::GetStyle());
            style.WindowRounding = 12 * scaleFactor;
            style.WindowBorderSize = style.FrameBorderSize = 0.f;
            style.ScrollbarSize = 12 * scaleFactor;

            ImVec4* const colors = style.Colors;
            colors[ImGuiCol_Text]             = ImVec4(0.f, 0.f, 0.f, 1.f);
            colors[ImGuiCol_WindowBg]         = ImVec4(0.f, 0.f, 0.f, 0.f);
            colors[ImGuiCol_FrameBg]          = ImVec4(0.f, 0.f, 0.f, 0.f);
            colors[ImGuiCol_FrameBgHovered]   = ImVec4(0.f, 0.f, 0.f, 0.f);
            colors[ImGuiCol_FrameBgActive]    = ImVec4(0.f, 0.f, 0.f, 0.f);
            colors[ImGuiCol_Header]           = ImVec4(0.f, 0.f, 0.f, 0.4f);
            colors[ImGuiCol_HeaderHovered]    = ImVec4(0.f, 0.f, 0.f, 0.35f);
            colors[ImGuiCol_HeaderActive]     = ImVec4(0.f, 0.f, 0.f, 0.5f);
        }

        const int flags = ImGuiWindowFlags_NoBackground
                        | ImGuiWindowFlags_NoSavedSettings
                        | ImGuiWindowFlags_NoTitleBar
                        | ImGuiWindowFlags_NoResize
                        | ImGuiWindowFlags_NoCollapse
                        | ImGuiWindowFlags_NoScrollbar
                        | ImGuiWindowFlags_NoScrollWithMouse;

        ImGui::SetNextWindowPos(ImVec2(0, 0));
        ImGui::SetNextWindowSize(ImVec2(box.size.x * scaleFactor, box.size.y * scaleFactor));

        if (ImGui::Begin("Model File List", nullptr, ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoResize))
        {
            if (ImGui::BeginTable("modellist", 1, ImGuiTableFlags_NoSavedSettings))
            {
                for (size_t i=0, count=currentFiles.size(); i < count; ++i)
                {