public static SvgImage GetCache(Assembly assembly, string imageName)
{
if (string.IsNullOrEmpty(imageName))
{
return(null);
}
if (!SvgCache.TryGetValue(imageName, out var svg))
{
var keyName = $"{assembly.GetName().Name}.Assets.{imageName}.svg";
using (Stream stream = assembly.GetManifestResourceStream(keyName))
{
if (stream != null)
{
svg = new SvgImage();
svg.Load(stream);
SvgCache[imageName] = svg;
}
else
{
SvgCache[imageName] = null;
}
}
}
return(svg);
}
public static void DrawImage(SKCanvas canvas, SvgImage svg, SKPaint paint, SKRect bounds, float indent = 2)
{
var matrix = GetMatrix(svg, bounds, indent);
canvas.Save();
canvas.Concat(ref matrix);
canvas.DrawPath(svg.Path, paint);
canvas.Restore();
}
public static SKMatrix GetMatrix(SvgImage svg, float left, float top, float widthR, float heightR, float rotate = 0)
{
float canvasMin = Math.Min(widthR, heightR);
// get the size of the picture
float svgMax = Math.Max(svg.ViewBox.Width, svg.ViewBox.Height);
// get the scale to fill the screen
float scale = canvasMin / svgMax;
var width = svg.ViewBox.Width * scale;
var height = svg.ViewBox.Height * scale;
var matrix = SKMatrix.Identity;
if (rotate > 0)
{
matrix = matrix.PreConcat(SKMatrix.CreateRotationDegrees(rotate, (left + widthR / 2), (top + heightR / 2)));
}
matrix = matrix.PreConcat(SKMatrix.CreateTranslation(left + (widthR - width) / 2F, top + (heightR - height) / 2F));
matrix = matrix.PreConcat(SKMatrix.CreateScale(scale, scale));
return(matrix);
}
public static SKMatrix GetMatrix(SvgImage svg, SKRect bound, float indent, float rotate = 0)
{
bound.Inflate(-indent, -indent);
return(GetMatrix(svg, bound.Left, bound.Top, bound.Width, bound.Height, rotate));
}