private ResizeMode GetRezieMode(ThumMode mode)
{
var resizeMode = ResizeMode.Crop;
switch (mode)
{
case ThumMode.Crop:
resizeMode = ResizeMode.Crop;
break;
case ThumMode.Fit:
resizeMode = ResizeMode.Max;
break;
case ThumMode.Pad:
resizeMode = ResizeMode.Pad;
break;
default:
break;
}
return(resizeMode);
}
public string GetPicUrl(long attaId, int width = 100, int height = 100, ThumMode mode = ThumMode.Crop, int quality = 100, WaterMarkingPosition?waterPosition = null)
{
var atta = AttachmentRepository.Get(attaId);
if (atta == null)
{
return(null);
}
var thumbPath = Path.Combine(SysConfigRepository.UploadThumbDirectory,
$"{mode}_{width}x{height}",
atta.FilePath);
var thumbFullPath = GetFullPath(thumbPath);
if (!File.Exists(thumbFullPath))
{
var originalFullPath = GetFullPath(atta.FilePath);
if (!File.Exists(originalFullPath))
{
return(null);
}
using (var originalImage = new ImageFactory(true))
{
ResizeMode resizeMode = GetRezieMode(mode);
var resizeLayer = new ResizeLayer(new Size(width, height), resizeMode);
originalImage.Load(originalFullPath)
.Resize(resizeLayer);
AddWatermark(waterPosition, originalImage);
originalImage.BackgroundColor(Color.White)
.Quality(quality)
.Save(thumbFullPath);
}
}
return(GetFileUrl(Path.Combine(SysConfigRepository.UploadRootDirectory, thumbPath)));
}
public static string ThumbUrl(this UrlHelper urlHelper, long picId, int width, int height, WaterMarkingPosition position, ThumMode mode = ThumMode.Crop, string defUrl = "")
{
if (picId == 0)
{
return(defUrl);
}
var attaSvc = DependencyResolver.Current.GetService <IAttachmentSvc>();
return(attaSvc.GetPicUrl(picId, width, height, mode, 100, position));
}