private void OnDraw(CanvasControl sender, CanvasDrawEventArgs args)
{
var ds = args.DrawingSession;
EnsureSvgDrawingLoaded(sender);
if (svgDrawing == null)
{
if (wantedSvgFile != null)
{
ds.DrawText("Loading...",
sender.Size.ToVector2() / 2,
Colors.Black,
new CanvasTextFormat()
{
HorizontalAlignment = CanvasHorizontalAlignment.Center,
VerticalAlignment = CanvasVerticalAlignment.Center
});
}
}
else
{
var svgImage = svgDrawing.Draw(sender.Size);
var bounds = svgImage.GetBounds(ds);
if (bounds.Width > sender.Size.Width || bounds.Height > sender.Size.Height)
{
double scale = Math.Min(sender.Size.Height / bounds.Height, sender.Size.Width / bounds.Width);
Size destSize = new Size(bounds.Width * scale, bounds.Height * scale);
args.DrawingSession.DrawImage(
svgImage,
new Rect(new Point(), destSize),
bounds);
}
else
{
args.DrawingSession.DrawImage(
svgImage,
-(float)bounds.Left, -(float)bounds.Top);
}
}
}