namespace ATAS.Indicators.Technical
{
	using System;
	using System.ComponentModel;
	using System.ComponentModel.DataAnnotations;
	using System.Drawing;
	using System.Globalization;
	using System.Reflection;
	using System.Windows.Media;

	using ATAS.Indicators.Technical.Properties;

	using OFT.Attributes;
	using OFT.Rendering.Context;
	using OFT.Rendering.Settings;
	using OFT.Rendering.Tools;

	using Utils.Common.Logging;

	using Color = System.Drawing.Color;

	[DisplayName("Daily Lines")]
	[HelpLink("support.atas.net/knowledge-bases/2/articles/17029-daily-lines")]
	public class DailyLines : Indicator
	{
		#region Nested types

		[Serializable]
		[Obfuscation(Feature = "renaming", ApplyToMembers = true, Exclude = true)]
		public enum PeriodType
		{
			[Display(ResourceType = typeof(Resources), Name = "CurrentDay")]
			CurrentDay,

			[Display(ResourceType = typeof(Resources), Name = "PreviousDay")]
			PreviousDay,

			[Display(ResourceType = typeof(Resources), Name = "CurrentWeek")]
			CurrenWeek,

			[Display(ResourceType = typeof(Resources), Name = "PreviousWeek")]
			PreviousWeek,

			[Display(ResourceType = typeof(Resources), Name = "CurrentMonth")]
			CurrentMonth,

			[Display(ResourceType = typeof(Resources), Name = "PreviousMonth")]
			PreviousMonth
		}

		#endregion

		#region Fields

		private readonly RenderFont _font = new("Arial", 8);

		private decimal _close;

		private int _closeBar;
		private DynamicLevels.DynamicCandle _currentCandle = new();
		private decimal _currentClose;
		private decimal _currentHigh;
		private decimal _currentLow;

		private decimal _currentOpen;
		private bool _customSession;
		private int _days;
		private bool _drawFromBar;
		private TimeSpan _endTime;
		private decimal _high;
		private int _highBar;
		private int _lastNewSessionBar;
		private decimal _low;
		private int _lowBar;
		private decimal _open;
		private int _openBar;
		private PeriodType _per = PeriodType.PreviousDay;
		private int _prevCloseBar;
		private int _prevHighBar;
		private DynamicLevels.DynamicCandle _previousCandle = new();
		private int _prevLowBar;
		private int _prevOpenBar;
		private bool _showTest = true;
		private TimeSpan _startTime;
		private int _targetBar;
		private bool _tickBasedCalculation;

		#endregion

		#region Properties

		[Display(ResourceType = typeof(Resources), Name = "Days", GroupName = "Filters", Order = 100)]
		public int Days
		{
			get => _days;
			set
			{
				if (value < 0)
					return;

				_days = value;
				RecalculateValues();
			}
		}

		[Display(ResourceType = typeof(Resources), Name = "Period", GroupName = "Filters", Order = 110)]
		public PeriodType Period
		{
			get => _per;
			set
			{
				_per = value;
				RecalculateValues();
			}
		}

		[Display(ResourceType = typeof(Resources), Name = "CustomSession", GroupName = "Filters", Order = 120)]
		public bool CustomSession
		{
			get => _customSession;
			set
			{
				_customSession = value;
				RecalculateValues();
			}
		}

		[Display(ResourceType = typeof(Resources), Name = "SessionBegin", GroupName = "Filters", Order = 120)]
		public TimeSpan StartTime
		{
			get => _startTime;
			set
			{
				_startTime = value;
				RecalculateValues();
			}
		}

		[Display(ResourceType = typeof(Resources), Name = "SessionEnd", GroupName = "Filters", Order = 120)]
		public TimeSpan EndTime
		{
			get => _endTime;
			set
			{
				_endTime = value;
				RecalculateValues();
			}
		}

		[Display(ResourceType = typeof(Resources), Name = "Text", GroupName = "Show", Order = 200)]
		public bool ShowText
		{
			get => _showTest;
			set
			{
				_showTest = value;
				RecalculateValues();
			}
		}

		[Display(ResourceType = typeof(Resources), Name = "PriceLocation", GroupName = "Show", Order = 210)]
		public bool ShowPrice { get; set; } = true;

		[Display(ResourceType = typeof(Resources), Name = "FirstBar", GroupName = "Drawing", Order = 300)]
		public bool DrawFromBar
		{
			get => _drawFromBar;
			set
			{
				_drawFromBar = value;
				RecalculateValues();
			}
		}

		[Display(ResourceType = typeof(Resources), Name = "Line", GroupName = "Open", Order = 310)]
		public PenSettings OpenPen { get; set; } = new() { Color = Colors.Red, Width = 2 };

		[Display(ResourceType = typeof(Resources), Name = "Text", GroupName = "Open", Order = 315)]
		public string OpenText { get; set; }

		[Display(ResourceType = typeof(Resources), Name = "Line", GroupName = "Close", Order = 320)]
		public PenSettings ClosePen { get; set; } = new() { Color = Colors.Red, Width = 2 };

		[Display(ResourceType = typeof(Resources), Name = "Text", GroupName = "Close", Order = 325)]
		public string CloseText { get; set; }

		[Display(ResourceType = typeof(Resources), Name = "Line", GroupName = "High", Order = 330)]
		public PenSettings HighPen { get; set; } = new() { Color = Colors.Red, Width = 2 };

		[Display(ResourceType = typeof(Resources), Name = "Text", GroupName = "High", Order = 335)]
		public string HighText { get; set; }

		[Display(ResourceType = typeof(Resources), Name = "Line", GroupName = "Low", Order = 340)]
		public PenSettings LowPen { get; set; } = new() { Color = Colors.Red, Width = 2 };

		[Display(ResourceType = typeof(Resources), Name = "Text", GroupName = "Low", Order = 345)]
		public string LowText { get; set; }

		#endregion

		#region ctor

		public DailyLines()
			: base(true)
		{
			DenyToChangePanel = true;
			EnableCustomDrawing = true;
			SubscribeToDrawingEvents(DrawingLayouts.Final);

			DataSeries[0].IsHidden = true;
			_days = 20;
			((ValueDataSeries)DataSeries[0]).ScaleIt = false;
			((ValueDataSeries)DataSeries[0]).ShowZeroValue = false;
			((ValueDataSeries)DataSeries[0]).VisualType = VisualMode.Hide;
		}

		#endregion

		#region Public methods

		public override string ToString()
		{
			return "Daily Lines";
		}

		#endregion

		#region Protected methods

		protected override void OnRender(RenderContext context, DrawingLayouts layout)
		{
			if (ChartInfo is null)
				return;

			string periodStr;

			switch (Period)
			{
				case PeriodType.CurrentDay:
				{
					periodStr = "Curr. Day ";
					break;
				}
				case PeriodType.PreviousDay:
				{
					periodStr = "Prev. Day ";
					break;
				}
				case PeriodType.CurrenWeek:
				{
					periodStr = "Curr. Week ";
					break;
				}
				case PeriodType.PreviousWeek:
				{
					periodStr = "Prev. Week ";
					break;
				}
				case PeriodType.CurrentMonth:
				{
					periodStr = "Curr. Month ";
					break;
				}
				case PeriodType.PreviousMonth:
				{
					periodStr = "Prev. Month ";
					break;
				}
				default:
					throw new ArgumentOutOfRangeException();
			}

			if (DrawFromBar)
			{
				var isLastPeriod = Period is PeriodType.CurrentDay or PeriodType.CurrentMonth or PeriodType.CurrenWeek;

				var openBar = isLastPeriod
					? _openBar
					: _prevOpenBar;

				var closeBar = isLastPeriod
					? _closeBar
					: _prevCloseBar;

				var highBar = isLastPeriod
					? _highBar
					: _prevHighBar;

				var lowBar = isLastPeriod
					? _lowBar
					: _prevLowBar;

				if (openBar >= 0 && openBar <= LastVisibleBarNumber)
				{
					var x = ChartInfo.PriceChartContainer.GetXByBar(openBar, false);
					var y = ChartInfo.PriceChartContainer.GetYByPrice(_open, false);
					context.DrawLine(OpenPen.RenderObject, x, y, Container.Region.Right, y);
					var renderText = string.IsNullOrEmpty(OpenText) ? periodStr + "Open" : OpenText;

					DrawString(context, renderText, y, OpenPen.RenderObject.Color);
				}

				if (closeBar >= 0 && closeBar <= LastVisibleBarNumber)
				{
					var x = ChartInfo.PriceChartContainer.GetXByBar(closeBar, false);
					var y = ChartInfo.PriceChartContainer.GetYByPrice(_close, false);
					context.DrawLine(ClosePen.RenderObject, x, y, Container.Region.Right, y);
					var renderText = string.IsNullOrEmpty(CloseText) ? periodStr + "Close" : CloseText;

					DrawString(context, renderText, y, ClosePen.RenderObject.Color);
				}

				if (highBar >= 0 && highBar <= LastVisibleBarNumber)
				{
					var x = ChartInfo.PriceChartContainer.GetXByBar(highBar, false);
					var y = ChartInfo.PriceChartContainer.GetYByPrice(_high, false);
					context.DrawLine(HighPen.RenderObject, x, y, Container.Region.Right, y);
					var renderText = string.IsNullOrEmpty(HighText) ? periodStr + "High" : HighText;

					DrawString(context, renderText, y, HighPen.RenderObject.Color);
				}

				if (lowBar >= 0 && lowBar <= LastVisibleBarNumber)
				{
					var x = ChartInfo.PriceChartContainer.GetXByBar(lowBar, false);
					var y = ChartInfo.PriceChartContainer.GetYByPrice(_low, false);
					context.DrawLine(LowPen.RenderObject, x, y, Container.Region.Right, y);
					var renderText = string.IsNullOrEmpty(LowText) ? periodStr + "Low" : LowText;

					DrawString(context, renderText, y, LowPen.RenderObject.Color);
				}
			}
			else
			{
				var yOpen = ChartInfo.PriceChartContainer.GetYByPrice(_open, false);
				context.DrawLine(OpenPen.RenderObject, Container.Region.Left, yOpen, Container.Region.Right, yOpen);
				var renderText = string.IsNullOrEmpty(OpenText) ? periodStr + "Open" : OpenText;

				DrawString(context, renderText, yOpen, OpenPen.RenderObject.Color);

				var yClose = ChartInfo.PriceChartContainer.GetYByPrice(_close, false);
				context.DrawLine(ClosePen.RenderObject, Container.Region.Left, yClose, Container.Region.Right, yClose);
				renderText = string.IsNullOrEmpty(CloseText) ? periodStr + "Close" : CloseText;

				DrawString(context, renderText, yClose, ClosePen.RenderObject.Color);

				var yHigh = ChartInfo.PriceChartContainer.GetYByPrice(_high, false);
				context.DrawLine(HighPen.RenderObject, Container.Region.Left, yHigh, Container.Region.Right, yHigh);
				renderText = string.IsNullOrEmpty(HighText) ? periodStr + "High" : HighText;

				DrawString(context, renderText, yHigh, HighPen.RenderObject.Color);

				var yLow = ChartInfo.PriceChartContainer.GetYByPrice(_low, false);
				context.DrawLine(LowPen.RenderObject, Container.Region.Left, yLow, Container.Region.Right, yLow);
				renderText = string.IsNullOrEmpty(LowText) ? periodStr + "Low" : LowText;

				DrawString(context, renderText, yLow, HighPen.RenderObject.Color);
			}

			if (!ShowPrice)
				return;

			var bounds = context.ClipBounds;
			context.ResetClip();
			context.SetTextRenderingHint(RenderTextRenderingHint.Aliased);

			if (_openBar >= 0 && _openBar <= LastVisibleBarNumber || !DrawFromBar)
				DrawPrice(context, _open, OpenPen.RenderObject);

			if (_closeBar >= 0 && _closeBar <= LastVisibleBarNumber || !DrawFromBar)
				DrawPrice(context, _close, ClosePen.RenderObject);

			if (_highBar >= 0 && _highBar <= LastVisibleBarNumber || !DrawFromBar)
				DrawPrice(context, _high, HighPen.RenderObject);

			if (_lowBar >= 0 && _lowBar <= LastVisibleBarNumber || !DrawFromBar)
				DrawPrice(context, _low, LowPen.RenderObject);

			context.SetTextRenderingHint(RenderTextRenderingHint.AntiAlias);
			context.SetClip(bounds);
		}

		protected override void OnCalculate(int bar, decimal value)
		{
			try
			{
				if (bar == 0)
				{
					_tickBasedCalculation = false;
					_currentCandle = new DynamicLevels.DynamicCandle();
					_previousCandle = new DynamicLevels.DynamicCandle();
					_lastNewSessionBar = -1;
					_openBar = _closeBar = _highBar = _lowBar = -1;

					if (_days == 0 || Period is PeriodType.CurrentMonth or PeriodType.PreviousMonth)
						_targetBar = 0;
					else

					{
						var days = 0;

						for (var i = CurrentBar - 1; i >= 0; i--)
						{
							_targetBar = i;

							if (!IsNewSession(i))
								continue;

							days++;

							if (days == _days)
								break;
						}
					}
				}

				if (bar < _targetBar)
					return;

				if (bar != _lastNewSessionBar)
				{
					var isNewSession = IsNewSession(bar) && !CustomSession || IsNewCustomSession(bar) && CustomSession;

					if (Period is PeriodType.CurrentDay or PeriodType.PreviousDay && isNewSession)
					{
						_previousCandle = _currentCandle;
						_prevOpenBar = _openBar;
						_prevCloseBar = _closeBar;
						_prevHighBar = _highBar;
						_prevLowBar = _lowBar;
						_currentCandle = new DynamicLevels.DynamicCandle();
						_lastNewSessionBar = bar;
						_currentOpen = _currentCandle.Open;
						_openBar = bar;
					}
					else if (Period is PeriodType.CurrenWeek or PeriodType.PreviousWeek && IsNewWeek(bar))
					{
						_previousCandle = _currentCandle;
						_prevOpenBar = _openBar;
						_prevCloseBar = _closeBar;
						_prevHighBar = _highBar;
						_prevLowBar = _lowBar;
						_currentCandle = new DynamicLevels.DynamicCandle();
						_lastNewSessionBar = bar;
						_currentOpen = _currentCandle.Open;
						_openBar = bar;
					}
					else if (Period is PeriodType.CurrentMonth or PeriodType.PreviousMonth && IsNewMonth(bar))

					{
						_previousCandle = _currentCandle;
						_prevOpenBar = _openBar;
						_prevCloseBar = _closeBar;
						_prevHighBar = _highBar;
						_prevLowBar = _lowBar;
						_currentCandle = new DynamicLevels.DynamicCandle();
						_lastNewSessionBar = bar;
						_currentOpen = _currentCandle.Open;
						_openBar = bar;
					}
				}

				var insideSession = InsideSession(bar) || !CustomSession;

				if (!_tickBasedCalculation && insideSession)
					_currentCandle.AddCandle(GetCandle(bar), InstrumentInfo.TickSize);

				var showedCandle = Period is PeriodType.CurrentDay or PeriodType.CurrenWeek or PeriodType.CurrentMonth
					? _currentCandle
					: _previousCandle;

				/*
				if (_currentCandle.Open != _currentOpen)
				{
					
				}
				*/
				if (_currentCandle.Close != _currentClose)
				{
					_currentClose = _currentCandle.Close;
					_closeBar = bar;
				}

				if (_currentCandle.High != _currentHigh)
				{
					_currentHigh = _currentCandle.High;
					_highBar = bar;
				}

				if (_currentCandle.Low != _currentLow)
				{
					_currentLow = _currentCandle.Low;
					_lowBar = bar;
				}

				if (bar == CurrentBar - 1)
				{
					_open = showedCandle.Open;
					_close = showedCandle.Close;
					_high = showedCandle.High;
					_low = showedCandle.Low;
					_tickBasedCalculation = true;
				}
			}
			catch (Exception e)
			{
				this.LogError("Daily lines error ", e);
			}
		}

		protected override void OnNewTrade(MarketDataArg arg)
		{
			if (_tickBasedCalculation)
				_currentCandle.AddTick(arg);
		}

		#endregion

		#region Private methods

		private bool InsideSession(int bar)
		{
			var diff = InstrumentInfo.TimeZone;
			var candle = GetCandle(bar);
			var time = candle.Time.AddHours(diff);

			DateTime start;
			DateTime end;

			if (EndTime >= StartTime)
			{
				start = time.Date + StartTime;
				end = time.Date + EndTime;
			}
			else
			{
				start = bar > 0
					? time.Date + StartTime
					: time.Date.AddDays(-1) + StartTime;

				end = bar > 0
					? time.Date.AddDays(1) + EndTime
					: time.Date + EndTime;
			}

			return time <= end && time >= start;
		}

		private bool IsNewCustomSession(int bar)
		{
			var candle = GetCandle(bar);

			var candleStart = candle.Time
				.AddHours(InstrumentInfo.TimeZone)
				.TimeOfDay;

			var candleEnd = candle.LastTime
				.AddHours(InstrumentInfo.TimeZone)
				.TimeOfDay;

			if (bar == 0)
			{
				if (_startTime < _endTime)
				{
					return candleStart <= _startTime && candleEnd >= _endTime
						|| candleStart >= _startTime && candleEnd <= _endTime
						|| candleStart < _startTime && candleEnd > _startTime && candleEnd <= _endTime;
				}

				return candleStart >= _startTime || candleStart <= _endTime;
			}

			var diff = InstrumentInfo.TimeZone;

			var prevCandle = GetCandle(bar - 1);
			var prevTime = prevCandle.LastTime.AddHours(diff);

			var time = candle.LastTime.AddHours(diff);

			DateTime start;
			DateTime end;

			if (EndTime >= StartTime)
			{
				start = time.Date + StartTime;
				end = time.Date + EndTime;
			}
			else
			{
				start = bar > 0
					? time.Date + StartTime
					: time.Date.AddDays(-1) + StartTime;

				end = bar > 0
					? time.Date.AddDays(1) + EndTime
					: time.Date + EndTime;
			}

			return time <= end && time >= start && !(prevTime <= end && prevTime >= start);
		}

		private void DrawString(RenderContext context, string renderText, int yPrice, Color color)
		{
			var textSize = context.MeasureString(renderText, _font);
			context.DrawString(renderText, _font, color, Container.Region.Right - textSize.Width - 5, yPrice - textSize.Height);
		}

		private void DrawPrice(RenderContext context, decimal price, RenderPen pen)
		{
			var y = ChartInfo.GetYByPrice(price, false);

			var renderText = price.ToString(CultureInfo.InvariantCulture);
			var textWidth = context.MeasureString(renderText, _font).Width;

			if (y + 8 > Container.Region.Height)
				return;

			var polygon = new Point[]
			{
				new(Container.Region.Right, y),
				new(Container.Region.Right + 6, y - 7),
				new(Container.Region.Right + textWidth + 8, y - 7),
				new(Container.Region.Right + textWidth + 8, y + 8),
				new(Container.Region.Right + 6, y + 8)
			};

			context.FillPolygon(pen.Color, polygon);
			context.DrawString(renderText, _font, Color.White, Container.Region.Right + 6, y - 6);
		}

		#endregion
	}
}

Visual basic (VB.net) Online Compiler

Write, Run & Share VB.net code online using OneCompiler's VB.net online compiler for free. It's one of the robust, feature-rich online compilers for VB.net language, running on the latest version 16. Getting started with the OneCompiler's VB.net compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as VB.net. OneCompiler also has reference programs, where you can look for the sample code to get started with.

Read input from STDIN in VB.net

OneCompiler's VB.net online editor supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample VB.net program which takes name as input and prints hello message with your name.

Public Module Program
	Public Sub Main(args() As string)
	 Dim name as String = Console.ReadLine()    ' Reading input from STDIN
   Console.WriteLine("Hello " & name)           ' Writing output to STDOUT
	End Sub
End Module

About VB.net

Visual Basic is a event driven programming language by Microsoft, first released in the year 1991.

Key Features

  • Beginner's friendly language.
  • Simple and object oriented programming language.
  • User friendly language and easy to develop GUI based applications.

Syntax help

Variables

Variable is a name given to the storage area in order to identify them in our programs.

Simple syntax of Variable declaration is as follows

Dim variableName [ As [ New ] dataType ] [ = initializer ]

Variable initialization

variableName = value

Conditional Statements

1. If

If condition-expression Then 
    'code
End If

2. If-else

If(conditional-expression)Then
   'code if the conditional-expression is true 
Else
  'code if the conditional-expression is false 
End If

3. If-else-if ladder

If(conditional-expression)Then
   'code if the above conditional-expression is true 
Else If(conditional-expression) Then
        'code if the above conditional-expression is true 
    Else
        'code if the above conditional-expression is false 
End If

4. Nested-If

If(conditional-expression)Then
   'code if the above conditional-expression is true
   If(conditional-expression)Then
         'code if the above conditional-expression is true 
   End If
End If

5. Select Case

Select [ Case ] expression
   [ Case expressionlist
      'code ]
   [ Case Else
      'code ]
End Select

Loops

1. For..Next

For counter [ As datatype ] = begin To end [ Step step ]
   'code
   [ Continue For ]
   'code
   [ Exit For ]
   'code
Next [ counter ]

2. For..Each

For Each element [ As datatype ] In group
   'code
   [ Continue For ]
   'code
   [ Exit For ]
   'code
Next [ element ]

3. While

While conditional-expression
   'Code 
   [ Continue While ]
   'Code
   [ Exit While ]
   'Code
End While

4. Do-while

Do { While | Until } conditional-expression
   'Code
   [ Continue Do ]
   'Code
   [ Exit Do ]
   'Code
Loop

Do
   'Code
   [ Continue Do ]
   'Code
   [ Exit Do ]
   'Code
Loop { While | Until } conditional-expression

Procedures

Procedure is a sub-routine which contains set of statements. Usually Procedures are written when multiple calls are required to same set of statements which increases re-usuability and modularity.

Procedures are of two types.

1. Functions

Functions return a value when they are called.

[accessModifiers] Function functionName [(parameterList)] As returnType
   'code
End Function

2. Sub-Procedures

Sub-procedures are similar to functions but they don't return any value.

Sub ProcedureName (parameterList)
'Code
End Sub