protected override void OnResultadoPaintSurface(SKSurface s, SKImageInfo i)
{
base.OnResultadoPaintSurface(s, i);
if (ViewModel == null)
{
return;
}
var p = new MathPainter(12)
{
TextColor = SKColors.White
};
p.LaTeX = (Result) ? @"\text{Es un número primo}" : @"\text{No es un número primo}";
var pM = p.Measure;
if (pM.HasValue)
{
Resultado.WidthRequest = pM.Value.Width;
Resultado.HeightRequest = pM.Value.Height;
}
p.Draw(s.Canvas, alignment: CSharpMath.Rendering.TextAlignment.Left);
}
public Stream Render(string latex)
{
var painter = new MathPainter {
LaTeX = latex
};
var path = Path.GetTempFileName();
var measures = painter.Measure();
SKBitmap bitMap = new SKBitmap(
width: ((int)measures.Width) + 2 * LatexBorder,
height: ((int)measures.Height) + 2 * LatexBorder
);
var canvas = new SKCanvas(bitMap);
painter.Draw(
canvas: canvas,
point: new SKPoint(LatexBorder, (measures.Height / 2.0f) + LatexBorder)
);
canvas.Flush();
using (var image = SKImage.FromBitmap(bitMap))
using (var data = image.Encode(SKEncodedImageFormat.Png, 100))
{
// save the data to a stream
using var streamf = File.OpenWrite(path);
data.SaveTo(streamf);
}
return(File.Open(path, FileMode.Open));
}
virtual protected void OnEnunciadoPaintSurface(SKSurface s, SKImageInfo i)
{
s.Canvas.Clear(SKColors.Green);
if (ViewModel == null)
{
return;
}
var p = new MathPainter(12)
{
TextColor = SKColors.White
};
p.LaTeX = $@"\text{{{ViewModel?.Numero}. {EnunciadoStr}}}";
var pM = p.Measure;
if (pM.HasValue)
{
Enunciado.WidthRequest = pM.Value.Width;
Enunciado.HeightRequest = pM.Value.Height;
}
p.Draw(s.Canvas, alignment: CSharpMath.Rendering.TextAlignment.Left);
}