/// <summary>
/// Returns a cover art image for the specified track.
/// </summary>
/// <param name="trackInfo">
/// An object contating data of currently playing track.
/// </param>
/// <param name="concreteRule">
/// A rule that should be used to search for cover art image.
/// </param>
/// <returns>Result of cover art image search.</returns>
public Bitmap GetBitmap(TrackInfo trackInfo, FindRule concreteRule)
{
Bitmap result = null;
var fileDir = Path.GetDirectoryName(trackInfo.FileName);
if (String.IsNullOrEmpty(fileDir))
{
return null;
}
var dir = new DirectoryInfo(fileDir);
String searchPattern;
if (concreteRule.Rule == CoverRuleType.AlbumFile)
{
searchPattern = trackInfo.Album + ".*";
}
else if (concreteRule.Rule == CoverRuleType.CoverFile)
{
searchPattern = "cover.*";
}
else
{
throw new NotSupportedException("The " + concreteRule.Rule + " rule cannot be handled by this method.");
}
// In case the pattern is not correct for the file system, do not proceed further.
if (Core.Algorithms.ContainsInvalidFileNameChars(searchPattern))
{
return null;
}
var covers = dir.GetFiles(searchPattern, SearchOption.TopDirectoryOnly);
if (covers.Length > 0)
{
foreach (var cover in covers)
{
Debug.WriteLine(String.Format("Loading image from HDD : {0}", cover.Name));
var ms = new MemoryStream(File.ReadAllBytes(cover.FullName));
try
{
result = (Bitmap)Image.FromStream(ms);
break;
}
catch (ArgumentException)
{
// Means that this is not an image or this format is not supported.
ms.Dispose();
}
}
}
return result;
}
public Bitmap GetBitmap(IAimpPlayer player, FindRule concreteRule)
{
return GetBitmap(new TrackInfo(player), concreteRule);
}
