Bacon.VolumeButton.BuildPopup C# (CSharp) Method

        private void BuildPopup(double min, double max, double step)
        {
            dock = new Window(WindowType.Popup);
            dock.Screen = Screen;
            dock.ButtonPressEvent += OnDockButtonPressEvent;
            dock.KeyPressEvent += OnDockKeyPressEvent;
            dock.KeyReleaseEvent += OnDockKeyReleaseEvent;
            dock.ScrollEvent += OnPlusMinusScollEvent;
            dock.Hidden += OnDockHidden;

            Frame frame = new Frame();
            frame.Shadow = ShadowType.Out;
            frame.Show();

            dock.Add(frame);

            VBox box = new VBox(false, 0);
            box.Show();

            frame.Add(box);

            Label label = new Label();
            label.Markup = "<b><big>+</big></b>";
            plus = new Button(label);
            plus.Relief = ReliefStyle.None;
            plus.ButtonPressEvent += OnPlusMinusButtonPressEvent;
            plus.ButtonReleaseEvent += OnPlusMinusButtonReleaseEvent;
            plus.ScrollEvent += OnPlusMinusScollEvent;
            plus.ShowAll();
            box.PackStart(plus, false, true, 0);

            slider = new VolumeScale(this, min, max, step);
            slider.SetSizeRequest(-1, SCALE_SIZE);
            slider.DrawValue = false;
            slider.Inverted = true;
            slider.Show();
            box.PackStart(slider, true, true, 0);

            label = new Label();
            label.Markup = "<b><big>\u2212</big></b>";
            minus = new Button(label);
            minus.Relief = ReliefStyle.None;
            minus.ButtonPressEvent += OnPlusMinusButtonPressEvent;
            minus.ButtonReleaseEvent += OnPlusMinusButtonReleaseEvent;
            minus.ScrollEvent += OnPlusMinusScollEvent;
            minus.ShowAll();
            box.PackEnd(minus, false, true, 0);

            Show();
        }