public ImageTypeRecord Get(string type, ImageQuality quality = ImageQuality.BestAvailable, bool acceptLower = true, bool mustHaveImage = false)
{
var typeName = type.ToUpper();
var sorted = ImageMappings.Where(r => r.Name == typeName).OrderByDescending(r => r.Quality);
if (quality == ImageQuality.BestAvailable)
{
return(sorted.FirstOrDefault());
}
var exactMatch = sorted.SingleOrDefault(r => r.Quality == quality);
if (exactMatch != null)
{
return(exactMatch);
}
// Don't have explicit size or have not asked for best available.
if (acceptLower)
{
Debug.Assert(quality != ImageQuality.BestAvailable, "Must be an explicit quality");
var newQuality = quality == ImageQuality.Large ? ImageQuality.Medium : ImageQuality.Small;
if (newQuality != quality)
{
return(Get(type, newQuality));
}
}
return(mustHaveImage ? Get("Unknown", quality) : null);
}
public ImageTypeRecord Get(
string type,
ImageOptions options)
{
type.ThrowIfNullOrWhiteSpace(nameof(type));
options.ThrowIfNull(nameof(options));
var quality = options.Quality;
var typeName = type.ToUpper();
var sorted = ImageMappings.Where(r => r.Name == typeName).OrderByDescending(r => r.Quality);
if (quality == ImageQuality.BestAvailable)
{
return(sorted.FirstOrDefault());
}
var exactMatch = sorted.SingleOrDefault(r => r.Quality == quality);
if (exactMatch != null)
{
return(exactMatch);
}
// Don't have explicit size or have not asked for best available.
if (options.AcceptLowerQuality)
{
Debug.Assert(quality != ImageQuality.BestAvailable, "Must be an explicit Quality");
var newQuality = quality == ImageQuality.Large ? ImageQuality.Medium : ImageQuality.Small;
if (newQuality != quality)
{
// Update options
// TODO: ideally this should clone
var newOptions = new ImageOptions
{
Quality = newQuality,
AcceptLowerQuality = options.AcceptLowerQuality,
ImageMustExist = options.ImageMustExist
};
// Recursive
return(Get(type, newOptions));
}
}
return(options.ImageMustExist ? Get("Unknown", options) : null);
}