user input class interface idea

String Action_TestDialog()
{
    /* Declare a user input dialog */
    UserInputDialog Dialog("CycleMarkFinder");

    /* Declare some user input fields */
    UserInputField
        Algorithm("Algorithm"),
        Precision("Precision"),
        Lofreq("Low Freq"),
        HiFreq("High Freq");

    /* Delcare some user input buttons */
    UserInputButton
        Run("Run"),
        DeleteMarkers("Delete Markers");

    /* Add the fields to dialog */
    // Output a pointer from these functions
    Dialog.addFields({
        Algorithm.makeDropdown(0, {"Normal", "Refined"}), // default, menu items
        Precision.makeField(8), // default
        LoFreq.makeSlider(0.0, 10000.0, 20.0), // default/min/max
        HiFreq.makeSlider(0.0, 10000.0, 1000.0), // default/min/max
        // sliders are not crucial if it's too annoying right now
        // also, is it possible to give sliders a callback so they,
        // for example, run some code to update something in REAPER?
    });

    /* Add buttons */
    // just stack these horizontally at the bottom
    Dialog.addButtons({
        Run, DeleteMarkers,
    });

    Run.setCallback([&]()
    {
        /* Xen, do you know how to determine type
        by return type? I've done it before. Not crucial.
        I think you have to do a new function for each return
        type: double, int, string, bool */
        int algo = Algorithm.getValue();
        int precision = Precision.getVaue();
        double lofreq = LoFreq.getValue();
        double hiFreq = HiFreq.getValue();

        /* do stuff with values */

        return "status";
    });

    DeleteMarkers.setCallback([&]()
    {
        /* do stuff */

        return "status";
    });

    Dialog.runGUI();
}