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@ -116,7 +116,9 @@ public class SimpleMathsCaptchaGenerator : ITransientDependency
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var random = new Random();
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var startWith = (byte)random.Next(5, 10);
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image.Mutate(ctx => ctx.BackgroundColor(Color.Transparent));
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var fontFamily = SystemFonts.Families.FirstOrDefault(x => x.IsStyleAvailable(options.FontStyle))?.Name ?? SystemFonts.Families.First().Name;
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var fontFamily = SystemFonts.Families
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.FirstOrDefault(x => x.GetAvailableStyles().Contains(options.FontStyle), SystemFonts.Families.First())
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.Name;
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var font = SystemFonts.CreateFont(fontFamily, options.FontSize, options.FontStyle);
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foreach (var character in stringText)
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@ -125,7 +127,7 @@ public class SimpleMathsCaptchaGenerator : ITransientDependency
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var color = options.TextColor[random.Next(0, options.TextColor.Length)];
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var location = new PointF(startWith + position, random.Next(6, 13));
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image.Mutate(ctx => ctx.DrawText(text, font, color, location));
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position += TextMeasurer.Measure(character.ToString(), new RendererOptions(font, location)).Width;
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position += TextMeasurer.MeasureSize(character.ToString(), new TextOptions(font)).Width;
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}
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//add rotation
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@ -133,7 +135,7 @@ public class SimpleMathsCaptchaGenerator : ITransientDependency
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image.Mutate(ctx => ctx.Transform(rotation));
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// add the dynamic image to original image
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var size = (ushort)TextMeasurer.Measure(stringText, new RendererOptions(font)).Width;
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var size = (ushort)TextMeasurer.MeasureSize(stringText, new TextOptions(font)).Width;
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var img = new Image<Rgba32>(size + 15, options.Height);
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img.Mutate(ctx => ctx.BackgroundColor(Color.White));
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@ -146,7 +148,7 @@ public class SimpleMathsCaptchaGenerator : ITransientDependency
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var y1 = random.Next(0, img.Height);
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img.Mutate(ctx =>
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ctx.DrawLines(options.TextColor[random.Next(0, options.TextColor.Length)],
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ctx.DrawLine(options.TextColor[random.Next(0, options.TextColor.Length)],
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RandomTextGenerator.GenerateNextFloat(options.MinLineThickness, options.MaxLineThickness),
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new PointF[] { new PointF(x0, y0), new PointF(x1, y1) })
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);
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@ -154,14 +156,14 @@ public class SimpleMathsCaptchaGenerator : ITransientDependency
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img.Mutate(ctx => ctx.DrawImage(image, 0.80f));
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Parallel.For(0, options.NoiseRate, i =>
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Parallel.For(0, options.NoiseRate, _ =>
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{
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var x0 = random.Next(0, img.Width);
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var y0 = random.Next(0, img.Height);
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var x0 = random.Next(0, img.Width - 1);
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var y0 = random.Next(0, img.Height - 1);
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img.Mutate(
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ctx => ctx
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.DrawLines(options.NoiseRateColor[random.Next(0, options.NoiseRateColor.Length)],
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RandomTextGenerator.GenerateNextFloat(0.5, 1.5), new PointF[] { new Vector2(x0, y0), new Vector2(x0, y0) })
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.DrawLine(options.NoiseRateColor[random.Next(0, options.NoiseRateColor.Length)],
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RandomTextGenerator.GenerateNextFloat(0.5, 1.5), new (x0, y0), new (x0 + 0.01f, y0 + 0.01f))
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);
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});
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