private static string BuildMessage(ImageResizeResult result)
{
switch (result.Reason)
{
case FailureReasonType.EncoderNotFound:
return($"Can't find image encoder type for extension {result.Value}.");
case FailureReasonType.ZeroSizeNotAllowed:
return($"New image size WxH must be larger than zero.");
case FailureReasonType.GraphicsException:
return($"Can't draw graphics image. see result: {result.Value}.");
case FailureReasonType.ExtensionNotSupported:
return($"Extension not supported: {result.Value}.");
case FailureReasonType.UnknownImageFormatGuid:
return($"unknown image format guid: {result.Value}.");
case FailureReasonType.None:
default:
return($"Unknown exception during image resize.");
}
}
/// <summary>
/// Raise an image resize exeption
/// </summary>
public ImageResizeException(ImageResizeResult result) : base(BuildMessage(result))
{
Result = result;
}