private static void Transform(Image <Rgba32> image, int width, int height, FitMethod method)
{
ResizeMode?resizeMode = null;
switch (method)
{
case FitMethod.Contain:
resizeMode = ResizeMode.Max;
break;
case FitMethod.Cover:
resizeMode = ResizeMode.Crop;
break;
case FitMethod.Fill:
resizeMode = ResizeMode.Stretch;
break;
case FitMethod.ScaleDown:
if (image.Width > width || image.Height > height)
{
resizeMode = ResizeMode.Max;
}
break;
}
if (resizeMode.HasValue)
{
image.Mutate(x => x.Resize(new ResizeOptions()
{
Size = new Size(width, height),
Mode = resizeMode.Value,
Position = AnchorPositionMode.Center
}));
}
}
private static void Generate(Image <Rgba32> image, string destination, int width, int height, FitMethod method, IEncoder encoder)
{
Validate(width, height);
Transform(image, width, height, method);
Save(image, destination, encoder);
}
private static void Generate(string source, string destination, int width, int height, FitMethod method, IEncoder encoder)
{
using (Image <Rgba32> image = SixLabors.ImageSharp.Image.Load(source))
{
Generate(image, destination, width, height, method, encoder);
}
}
