public ControlPanel(SetDaysFrame setDaysFrame, BiorhythmCanvas biorhythmCanvas, Biorhythm yourBiorhythm) {
        this.setDaysFrame = setDaysFrame;
        this.biorhythmCanvas = biorhythmCanvas;
        this.yourBiorhythm = yourBiorhythm;

        calculator = new CalcDate();

        setBackground(Color.gray);

        nextButton = new Button("Next");
        prevButton = new Button("Prev");
        setButton = new Button("Set Days");

        add(prevButton);
        add(nextButton);
        add(setButton);
    }