SwitchSymbol

using System;
using cAlgo.API;
using cAlgo.API.Internals;
using cAlgo.API.Indicators;
using cAlgo.Indicators;
using System.Linq;

namespace cAlgo
{
    [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class SwitchSymbol : Indicator
    {
        [Parameter("Symbols", DefaultValue = "EURUSD, GBPUSD, USDJPY, AUDUSD")]
        public string SymbolsText { get; set; }

        [Parameter()]
        public Position Position { get; set; }

        protected override void Initialize()
        {
            var symbolNames = SymbolsText.Split(new[] 
            {
                ','
            }).Select(s => s.Trim()).Where(s => string.IsNullOrWhiteSpace(s) == false).ToArray();

            var verticalAlignment = (Position == Position.TopLeft || Position == Position.TopRight) ? VerticalAlignment.Top : VerticalAlignment.Bottom;
            var horizontalAlignment = (Position == Position.TopLeft || Position == Position.BottomLeft) ? HorizontalAlignment.Left : HorizontalAlignment.Right;

            var stackPanel = new StackPanel 
            {
                VerticalAlignment = verticalAlignment,
                HorizontalAlignment = horizontalAlignment,
                Margin = 8,
                Orientation = Orientation.Vertical
            };

            foreach (var symbolName in symbolNames)
            {
                var button = new Button 
                {
                    Text = symbolName,
                    Margin = 2,
                    IsEnabled = symbolName != SymbolName,
                    FontSize = 9
                };
                button.Click += Button_Click;
                stackPanel.AddChild(button);
            }

            Chart.AddControl(stackPanel);
        }

        private void Button_Click(ButtonClickEventArgs obj)
        {
            var symbolName = obj.Button.Text;
            Chart.TryChangeTimeFrameAndSymbol(TimeFrame, symbolName);
        }

        public override void Calculate(int index)
        {
        }
    }

    public enum Position
    {
        TopLeft,
        TopRight,
        BottomLeft,
        BottomRight
    }
}