public Task <Stream> TransformImage(Stream image, ImageDisParameters param)
{
var newImage = new MemoryStream();
using (var imageFactory = new ImageFactory(preserveExifData: false))
{
var chain = imageFactory.Load(image);
if (param.Has("w") || param.Has("h"))
{
var resizeLayer = new ResizeLayer(new Size(param.Get <int>("w"), param.Get <int>("h")));
resizeLayer.ResizeMode = ResizeMode.Max;
resizeLayer.AnchorPosition = AnchorPosition.Center;
if (param.Has("pad") && param.Get <bool>("pad"))
{
resizeLayer.ResizeMode = ResizeMode.Pad;
}
chain.Resize(resizeLayer);
}
chain.Save(newImage);
}
return(Task.FromResult <Stream>(newImage));
}
public IEnumerable <string> GetParameterAsParts(ImageDisParameters param)
{
if (param.Has("w") && param.Has("h"))
{
yield return(param.Get <int>("w") + "x" + param.Get <int>("h"));
}
else if (param.Has("w"))
{
yield return(param.Get <int>("w") + "w");
}
else if (param.Has("h"))
{
yield return(param.Get <int>("h") + "h");
}
if (param.Has("pad") && param.Get <bool>("pad"))
{
yield return("padded");
}
}