public bool TryGetContentType(IFormatInfo originalFormat, HttpRequestBase request, IFormatInfoProvider formatInfoProvider, out IFormatInfo transformedFormat, out BitmapEncoder encoder)
{
var format = request.QueryString["format"];
if (string.IsNullOrEmpty(format))
{
format = originalFormat.Extension.Substring(1);
}
switch (format.ToLower())
{
case "jpg":
int quality;
if (!int.TryParse(request.QueryString["quality"], out quality) || quality <= 0 || quality > 100)
{
quality = 80;
}
transformedFormat = formatInfoProvider.ResolveFromExtension(".jpg");
encoder = new JpegBitmapEncoder {
QualityLevel = quality
};
return(transformedFormat != null);
case "png":
transformedFormat = formatInfoProvider.ResolveFromExtension(".png");
encoder = new PngBitmapEncoder();
return(transformedFormat != null);
default:
transformedFormat = null;
encoder = null;
return(false);
}
}
public bool TryGetContentType(IFormatInfo originalFormat, HttpRequestBase request, IFormatInfoProvider formatInfoProvider, out IFormatInfo transformedFormat, out BitmapEncoder encoder)
{
var format = request.QueryString["format"];
if (string.IsNullOrEmpty(format))
{
format = originalFormat.Extension.Substring(1);
}
switch (format.ToLower())
{
case "jpg":
int quality;
if (!int.TryParse(request.QueryString["quality"], out quality) || quality <= 0 || quality > 100)
{
quality = 80;
}
transformedFormat = formatInfoProvider.ResolveFromExtension(".jpg");
encoder = new JpegBitmapEncoder { QualityLevel = quality };
return transformedFormat != null;
case "png":
transformedFormat = formatInfoProvider.ResolveFromExtension(".png");
encoder = new PngBitmapEncoder();
return transformedFormat != null;
default:
transformedFormat = null;
encoder = null;
return false;
}
}
protected override bool TryGetOutputFormat(HttpRequestBase request, IFormatInfo originalFormat, IFormatInfoProvider formatInfoProvider, out IFormatInfo outputFormat)
{
var format = request.QueryString["format"];
if (string.Equals(format, "exif-xml", StringComparison.InvariantCultureIgnoreCase))
{
outputFormat = formatInfoProvider.ResolveFromExtension(".xml");
return outputFormat != null;
}
outputFormat = null;
return false;
}
protected override bool TryGetOutputFormat(HttpRequestBase request, IFormatInfo originalFormat, IFormatInfoProvider formatInfoProvider, out IFormatInfo outputFormat)
{
var format = request.QueryString["format"];
if (string.Equals(format, "exif-json", StringComparison.InvariantCultureIgnoreCase))
{
outputFormat = formatInfoProvider.ResolveFromExtension(".json");
return(outputFormat != null);
}
outputFormat = null;
return(false);
}