/// <summary>
/// Delete a media on file system
/// </summary>
/// <param name="media">Media</param>
private void DeleteMediaOnFileSystem(Media media)
{
if (media == null)
throw new ArgumentNullException("media");
string[] parts = media.MimeType.Split('/');
string lastPart = parts[parts.Length - 1];
switch (lastPart)
{
case "pjpeg":
lastPart = "jpg";
break;
case "x-png":
lastPart = "png";
break;
case "x-icon":
lastPart = "ico";
break;
}
string localFilename = string.Format("{0}_0.{1}", media.MediaID.ToString("0000000"), lastPart);
string localFilepath = Path.Combine(LocalImagePath, localFilename);
if (File.Exists(localFilepath))
{
File.Delete(localFilepath);
}
}
/// <summary>
/// Get a media URL
/// </summary>
/// <param name="media">Media instance</param>
/// <param name="targetSize">The target media size (longest side)</param>
/// <param name="showDefaultMedia">A value indicating whether the default media is shown</param>
/// <returns></returns>
public string GetMediaUrl(Media media, int targetSize,
bool showDefaultMedia)
{
string url = string.Empty;
if (media == null || media.LoadMediaBinary().Length == 0)
{
if (showDefaultMedia)
{
url = GetDefaultMediaUrl(targetSize);
}
return url;
}
string[] parts = media.MimeType.Split('/');
string lastPart = parts[parts.Length - 1];
switch (lastPart)
{
case "pjpeg":
lastPart = "jpg";
break;
case "x-png":
lastPart = "png";
break;
case "x-icon":
lastPart = "ico";
break;
}
string localFilename = string.Empty;
if ((bool)media.IsNew)
{
string filter = string.Format("{0}*.*", media.MediaID.ToString("0000000"));
string[] currentFiles = System.IO.Directory.GetFiles(this.LocalThumbImagePath, filter);
foreach (string currentFileName in currentFiles)
File.Delete(Path.Combine(this.LocalThumbImagePath, currentFileName));
media = UpdateMedia(media.MediaID, media.LoadMediaBinary(), media.MimeType, false);
}
lock (s_lock)
{
if (targetSize == 0)
{
localFilename = string.Format("{0}.{1}", media.MediaID.ToString("0000000"), lastPart);
if (!File.Exists(Path.Combine(this.LocalThumbImagePath, localFilename)))
{
if (!System.IO.Directory.Exists(this.LocalThumbImagePath))
{
System.IO.Directory.CreateDirectory(this.LocalThumbImagePath);
}
File.WriteAllBytes(Path.Combine(this.LocalThumbImagePath, localFilename), media.LoadMediaBinary());
}
}
else
{
localFilename = string.Format("{0}_{1}.{2}", media.MediaID.ToString("0000000"), targetSize, lastPart);
if (!File.Exists(Path.Combine(this.LocalThumbImagePath, localFilename)))
{
if (!System.IO.Directory.Exists(this.LocalThumbImagePath))
{
System.IO.Directory.CreateDirectory(this.LocalThumbImagePath);
}
using (MemoryStream stream = new MemoryStream(media.LoadMediaBinary()))
{
var b = new Bitmap(stream);
var newSize = CalculateDimensions(b.Size, targetSize);
if (newSize.Width < 1)
newSize.Width = 1;
if (newSize.Height < 1)
newSize.Height = 1;
var newBitMap = new Bitmap(newSize.Width, newSize.Height);
var g = Graphics.FromImage(newBitMap);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
g.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
g.DrawImage(b, 0, 0, newSize.Width, newSize.Height);
var ep = new EncoderParameters();
ep.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, this.ImageQuality);
ImageCodecInfo ici = GetImageCodecInfoFromExtension(lastPart);
if (ici == null)
ici = GetImageCodecInfoFromMimeType("image/jpeg");
newBitMap.Save(Path.Combine(this.LocalThumbImagePath, localFilename), ici, ep);
newBitMap.Dispose();
b.Dispose();
}
}
}
}
url = ZuluHelper.ApplicationPath + @"images\thumbs\" + localFilename;
return url;
}
/// <summary>
/// Get a media URL
/// </summary>
/// <param name="media">Media instance</param>
/// <returns>Media URL</returns>
public string GetMediaUrl(Media media)
{
return GetMediaUrl(media, 0);
}
/// <summary>
/// Get a media URL
/// </summary>
/// <param name="media">Media instance</param>
/// <param name="targetSize">The target media size (longest side)</param>
/// <returns>Media URL</returns>
public string GetMediaUrl(Media media, int targetSize)
{
return GetMediaUrl(media, targetSize, true);
}
/// <summary>
/// Get a media local path
/// </summary>
/// <param name="media">Media instance</param>
/// <param name="targetSize">The target media size (longest side)</param>
/// <param name="showDefaultMedia">A value indicating whether the default media is shown</param>
/// <returns></returns>
public string GetMediaLocalPath(Media media, int targetSize, bool showDefaultMedia)
{
string url = GetMediaUrl(media, targetSize, showDefaultMedia);
if (String.IsNullOrEmpty(url))
{
return String.Empty;
}
else
{
return Path.Combine(this.LocalThumbImagePath, Path.GetFileName(url));
}
}