protected virtual void OnThumbnailCreated(ThumbnailCreateEventArgs e)
{
if (ThumbnailCreated != null)
{
ThumbnailCreated(e);
}
}
/// <summary>
/// Check and create thumbnails if necessary
/// </summary>
public void CheckThumbs(bool cleanup)
{
var missingThumbsSrc = new List <string>();
var missingThumbsTrg = new List <string>();
foreach (var ext in _imgExtensions)
{
var paths = Directory.GetFiles(ImageDirPath, ext, SearchOption.AllDirectories);
foreach (var file in paths)
{
if (!file.Contains(ExcludeThumbDirName) && !file.StartsWith(ThumbDirPath))
{
var relativePath = file.Substring((ImageDirPath + Path.DirectorySeparatorChar).Length);
var thumbPath = ThumbDirPath + Path.DirectorySeparatorChar + relativePath;
if (!File.Exists(thumbPath))
{
missingThumbsSrc.Add(file);
missingThumbsTrg.Add(thumbPath);
}
}
}
// Cleanup
if (cleanup)
{
// Cleanup images of which no original file exists
var tumbPaths = Directory.GetFiles(ThumbDirPath, ext, SearchOption.AllDirectories);
foreach (var file in tumbPaths)
{
var realImage = file.Replace(ThumbDirPath, ImageDirPath);
if (!File.Exists(realImage))
{
File.Delete(file);
}
}
// Cleanup empty directories
FileUtils.RemoveEmptySubdirectories(ThumbDirPath);
}
}
var cnt = missingThumbsSrc.Count;
if (cnt > 0)
{
for (var i = 0; i < cnt; i++)
{
ImageUtils.CreateThumb(missingThumbsSrc[i], missingThumbsTrg[i], DefaultThumbSize);
if (i % 10 == 0)
{
var e = new ThumbnailCreateEventArgs(i, cnt);
OnThumbnailCreated(e);
}
}
}
}
