Watermark

Sample of indicator which shows watermark on the chart

namespace ATAS.Indicators.Technical{using System using System.ComponentModel using System.ComponentModel.DataAnnotations using System.Drawing using ATAS.Indicators.Editors using ATAS.Indicators.Properties using OFT.Rendering.Context using OFT.Rendering.Tools using Color = System.Windows.Media.Color public class Watermark : Indicator{#region Nested typespublic enum Location{[Display(Name =Center )]Center,[Display(Name =TopLeft )]TopLeft,[Display(Name =TopRight )]TopRight,[Display(Name =BottomLeft )]BottomLeft,[Display(Name =BottomRight )]BottomRight}#endregion#region Properties[Display(Name =Color , GroupName =Common , Order = 10)]public Color TextColor { getset} = Color.FromArgb(255, 225, 225, 225) [Display(Name =TextLocation , GroupName =Common , Order = 20)]public Location TextLocation { getset}[Display(Name =HorizontalOffset , GroupName =Common , Order = 30)]public int HorizontalOffset { getset}[Display(Name =VerticalOffset , GroupName =Common , Order = 40)]public int VerticalOffset { getset}[Display(Name =ShowInstrument , GroupName =FirstLine , Order = 50)]public bool ShowInstrument { getset} = true [Display(Name =ShowPeriod , GroupName =FirstLine , Order = 60)]public bool ShowPeriod { getset} = true [Display(Name =Font , GroupName =FirstLine , Order = 70)][Editor(typeof(FontEditor), typeof(FontEditor))]public FontSetting Font { getset} = new FontSetting { Size = 60, Bold = true } [Display(Name =Text , GroupName =SecondLine , Order = 80)]public string AdditionalText { getset} =[Display(Name =Font , GroupName =SecondLine , Order = 90)][Editor(typeof(FontEditor), typeof(FontEditor))]public FontSetting AdditionalFont { getset} = new FontSetting { Size = 55 } [Display(Name =VerticalOffset , GroupName =SecondLine , Order = 90)]public int AdditionalTextYOffset { getset} = -40 #endregion#region ctorpublic Watermark(): base(true){Font.PropertyChanged += (a, b) =>RedrawChart() AdditionalFont.PropertyChanged += (a, b) =>RedrawChart() DataSeries[0].IsHidden = true DenyToChangePanel = true EnableCustomDrawing = true SubscribeToDrawingEvents(DrawingLayouts.Historical) DrawAbovePrice = false }#endregion#region Overrides of BaseIndicatorprotected override void OnCalculate(int bar, decimal value){}protected override void OnRender(RenderContext context, DrawingLayouts layout){var showSecondLine = !string.IsNullOrWhiteSpace(AdditionalText) if (!showSecondLine & &!ShowInstrument & &!ShowPeriod)return var textColor = TextColor.Convert() var mainTextRectangle = new Rectangle() var additionalTextRectangle = new Rectangle() var firstLine = string.Empty if (showSecondLine & &!string.IsNullOrEmpty(AdditionalText)){var size = context.MeasureString(AdditionalText, AdditionalFont.Font) additionalTextRectangle = new Rectangle(0, 0, (int)size.Width, (int)size.Height) }if (ShowInstrument || ShowPeriod){if (ShowInstrument)firstLine = InstrumentInfo.Instrument if (ShowPeriod){var period = ChartInfo.ChartType ==TimeFrame? ChartInfo.TimeFrame : $ {ChartInfo.ChartType} {ChartInfo.TimeFrame}if (ShowInstrument)firstLine += $ , {period}elsefirstLine += $ {period}}var size = context.MeasureString(firstLine, Font.Font) mainTextRectangle = new Rectangle(0, 0, (int)size.Width, (int)size.Height) }if (mainTextRectangle.Height >0 & &additionalTextRectangle.Height >0){int firstLineX int secondLineX var y = 0 var totalHeight = mainTextRectangle.Height + additionalTextRectangle.Height + AdditionalTextYOffset switch (TextLocation){case Location.Center:{firstLineX = ChartInfo.PriceChartContainer.Region.Width / 2 - mainTextRectangle.Width / 2 + HorizontalOffset secondLineX = ChartInfo.PriceChartContainer.Region.Width / 2 - additionalTextRectangle.Width / 2 + HorizontalOffset y = ChartInfo.PriceChartContainer.Region.Height / 2 - totalHeight / 2 + VerticalOffset break }case Location.TopLeft:{firstLineX = secondLineX = HorizontalOffset break }case Location.TopRight:{firstLineX = ChartInfo.PriceChartContainer.Region.Width - mainTextRectangle.Width + HorizontalOffset secondLineX = ChartInfo.PriceChartContainer.Region.Width - additionalTextRectangle.Width + HorizontalOffset break }case Location.BottomLeft:{firstLineX = secondLineX = HorizontalOffset y = ChartInfo.PriceChartContainer.Region.Height - totalHeight + VerticalOffset break }case Location.BottomRight:{firstLineX = ChartInfo.PriceChartContainer.Region.Width - mainTextRectangle.Width + HorizontalOffset secondLineX = ChartInfo.PriceChartContainer.Region.Width - additionalTextRectangle.Width + HorizontalOffset y = ChartInfo.PriceChartContainer.Region.Height - totalHeight + VerticalOffset break }default:throw new ArgumentOutOfRangeException() }context.DrawString(firstLine, Font.Font, textColor, firstLineX, y) context.DrawString(AdditionalText, AdditionalFont.Font, textColor, secondLineX, y + mainTextRectangle.Height + AdditionalTextYOffset) }else if (mainTextRectangle.Height >0){DrawString(context, firstLine, Font.Font, textColor, mainTextRectangle) }else if (additionalTextRectangle.Height >0){DrawString(context, AdditionalText, AdditionalFont.Font, textColor, additionalTextRectangle) }}private void DrawString(RenderContext context, string text, RenderFont font, System.Drawing.Color color, Rectangle rectangle){switch (TextLocation){case Location.Center:{context.DrawString(text, font, color, ChartInfo.PriceChartContainer.Region.Width / 2 - rectangle.Width / 2 + HorizontalOffset, ChartInfo.PriceChartContainer.Region.Height / 2 - rectangle.Height / 2 + VerticalOffset) break }case Location.TopLeft:{context.DrawString(text, font, color, HorizontalOffset, VerticalOffset) break }case Location.TopRight:{context.DrawString(text, font, color, ChartInfo.PriceChartContainer.Region.Width - rectangle.Width + HorizontalOffset, VerticalOffset) break }case Location.BottomLeft:{context.DrawString(text, font, color, HorizontalOffset, ChartInfo.PriceChartContainer.Region.Height - rectangle.Height + VerticalOffset) break }case Location.BottomRight:{context.DrawString(text, font, color, ChartInfo.PriceChartContainer.Region.Width - rectangle.Width + HorizontalOffset, ChartInfo.PriceChartContainer.Region.Height - rectangle.Height + VerticalOffset) break }default:throw new ArgumentOutOfRangeException() }}#endregion}}