60 lines
2.8 KiB
C#
60 lines
2.8 KiB
C#
using System;
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using System.IO;
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using Avalonia.Automation;
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using Avalonia.Media;
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using Avalonia.Media.Imaging;
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using MarketData.CNNProcessing;
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using MarketData.Utils;
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using ScottPlot;
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using SkiaSharp;
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public static class TextMarkerImageGenerator
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{
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public static Image GenerateImage(String text,int width=130, int height=24, int fontSize=12)
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{
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ImageHelper imageHelper = new ImageHelper();
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imageHelper.CreateImage(width, height);
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imageHelper.Fill(SKColors.White);
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SKTextAlign align = SKTextAlign.Center;
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SKFont font = new SKFont(SKTypeface.FromFamilyName("Arial",500,5,SKFontStyleSlant.Upright), fontSize);
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imageHelper.DrawLine(SKColors.Black,1, new SKPoint(0,0), new SKPoint(width-1,0)); // bottom left to right
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imageHelper.DrawLine(SKColors.Black,1, new SKPoint(width-1,0), new SKPoint(width-1,height-1)); // up lefthand side
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imageHelper.DrawLine(SKColors.Black,1, new SKPoint(0,height-1), new SKPoint(width-1,height-1)); // top left to right
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imageHelper.DrawLine(SKColors.Black,1, new SKPoint(0,height-1), new SKPoint(0,0)); // left hand side top to bottom
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imageHelper.DrawText(text, new SKPoint(width / 2, height-8), SKColors.Black, align, font);
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using MemoryStream memoryStream = new MemoryStream();
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imageHelper.ToStream().CopyTo(memoryStream);
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return new ScottPlot.Image(memoryStream.ToArray());
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}
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public static Image GenerateImage(String text,int fontSize=11)
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{
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ImageHelper imageHelper = new ImageHelper();
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SKFont font = default;
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if (Utility.IsOSWindows())font = new SKFont(SKTypeface.FromFamilyName("Helvetica",500,5,SKFontStyleSlant.Upright), fontSize);
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else font = new SKFont(SKTypeface.FromFamilyName(familyName: "Helvetica", weight: SKFontStyleWeight.Normal, width: SKFontStyleWidth.UltraCondensed, slant: SKFontStyleSlant.Upright), fontSize, .80f);
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SKTextAlign align = SKTextAlign.Left;
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imageHelper.CreateBoundedText(text, SKColors.Black, SKColors.White, align, font);
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using MemoryStream memoryStream = new MemoryStream();
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imageHelper.ToStream().CopyTo(memoryStream);
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return new ScottPlot.Image(memoryStream.ToArray());
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}
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public static Image ToSPImage(IImage image)
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{
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Bitmap bitmap = (Bitmap)image; //ImageCache.GetInstance().GetImage(ImageCache.ImageType.BlueTriangleUp);
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using MemoryStream memoryStream = new MemoryStream();
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bitmap.Save(memoryStream);
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return new ScottPlot.Image(memoryStream.ToArray());
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}
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public static IImage GenerateImage(int width, int height, SKColor color)
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{
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ImageHelper imageHelper = new ImageHelper();
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imageHelper.CreateImage(width, height);
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imageHelper.Fill(color);
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Avalonia.Media.Imaging.Bitmap avBitmap = new Avalonia.Media.Imaging.Bitmap(imageHelper.ToStream());
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return avBitmap;
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}
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}
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