public DrawVisual(Painter <AvaloniaCanvas, TContent, AvaloniaColor> painter,
System.Drawing.RectangleF measure, CSharpMathTextAlignment alignment)
{
this.painter = painter;
this.measure = measure;
this.alignment = alignment;
}
public static void DrawAsPng <TContent>
(this Painter <AvaloniaCanvas, TContent, AvaloniaColor> painter,
System.IO.Stream target,
float textPainterCanvasWidth = TextPainter.DefaultCanvasWidth,
CSharpMathTextAlignment alignment = CSharpMathTextAlignment.TopLeft) where TContent : class
{
if (!(painter.Measure(textPainterCanvasWidth) is { } size))
{
return;
}
using var bitmap =
new RenderTargetBitmap(new PixelSize((int)size.Width, (int)size.Height));
bitmap.Render(new DrawVisual <TContent>(painter, size, alignment));
bitmap.Save(target);
}
