public static ImageSource GetRasterizedImage(int size, string imageResourceLocation)
{
size *= 2;
string key = $"{size}|{imageResourceLocation}";
if (renders.TryGetValue(key, out ImageSource result) == false)
{
StreamResourceInfo streamResourceInfo;
try
{
streamResourceInfo = App.GetResourceStream(new Uri($"pack://application:,,,/{imageResourceLocation}"));
if (streamResourceInfo != null)
{
var svgLoader = new Loader();
VectorGraphicsInfo vectorGraphicsInfo = svgLoader.LoadFromStream(streamResourceInfo.Stream);
result = Rasterizer.Render(size, size, vectorGraphicsInfo);
}
renders.Add(key, result);
}
catch
{
renders.Add(key, null);
}
}
return(result);
}
public static ImageSource Render(int width, int height, VectorGraphicsInfo vectorGraphicsInfo)
{
DpiScale dpiInfo = VisualTreeHelper.GetDpi(App.Current.MainWindow);
PixelFormat pixelFormat = PixelFormats.Pbgra32;
var x = new RenderTargetBitmap(width, height, dpiInfo.PixelsPerInchX / dpiInfo.DpiScaleX, dpiInfo.PixelsPerInchY / dpiInfo.DpiScaleY, pixelFormat);
var canvas = new Canvas
{
Width = vectorGraphicsInfo.Viewbox.Width,
Height = vectorGraphicsInfo.Viewbox.Height,
SnapsToDevicePixels = false,
UseLayoutRounding = true
};
foreach (Path path in vectorGraphicsInfo.Paths)
{
canvas.Children.Add(path);
}
var viewbox = new Viewbox
{
Stretch = Stretch.Fill,
Width = width,
Height = height,
SnapsToDevicePixels = false,
UseLayoutRounding = true,
Child = canvas
};
var size = new Size(width, height);
viewbox.Measure(size);
viewbox.Arrange(new Rect(size));
x.Render(viewbox);
x.Freeze();
return(x);
}
