Method drawMenu

src-interface/viewer/image_handler.cpp:350–887

    }

    void ImageViewerHandler::drawMenu()
    {
        if (ImGui::CollapsingHeader("Image"))
        {
            if (products->images.size() < 100)
            {
                if (ImGui::Combo("##imagechannelcombo", &select_image_id, select_image_str.c_str()))
                {
                    if (select_image_id == 0)
                        active_channel_id = -1;
                    else
                        active_channel_id = select_image_id - 1;
                    asyncUpdate();
                }
            }
            else
            {
                if (ImGui::InputInt("##imagechannelint", &select_image_id))
                {
                    if (select_image_id > (int)products->images.size())
                        select_image_id = (int)products->images.size();
                    else if (select_image_id < 0)
                        select_image_id = 0;

                    if (select_image_id == 0)
                        active_channel_id = -1;
                    else
                        active_channel_id = select_image_id - 1;
                    asyncUpdate();
                }
            }

            if (ImGui::IsItemHovered() && active_channel_id >= 0)
            {
                if (products->get_wavenumber(active_channel_id) != -1)
                {
                    ImGui::BeginTooltip();
                    ImGui::Text(u8"Wavenumber : %f cm\u207b\u00b9", products->get_wavenumber(active_channel_id));
                    double wl_nm = 1e7 / products->get_wavenumber(active_channel_id);
                    double frequency = 299792458.0 / (wl_nm * 10e-10);

                    if (wl_nm < 1e3)
                        ImGui::Text("Wavelength : %f nm", wl_nm);
                    else if (wl_nm < 1e6)
                        ImGui::Text("Wavelength : %f µm", wl_nm / 1e3);
                    else if (wl_nm < 1e9)
                        ImGui::Text("Wavelength : %f mm", wl_nm / 1e6);
                    else
                        ImGui::Text("Wavelength : %f cm", wl_nm / 1e7);

                    if (frequency < 1e3)
                        ImGui::Text("Frequency : %f Hz", frequency);
                    else if (frequency < 1e6)
                        ImGui::Text("Frequency : %f kHz", frequency / 1e3);
                    else if (frequency < 1e9)
                        ImGui::Text("Frequency : %f MHz", frequency / 1e6);
                    else
                        ImGui::Text("Frequency : %f GHz", frequency / 1e9);