public override void Read(BinaryReader reader)
{
base.Read(reader);
byte[] body = reader.ReadBytes(this.HeaderOne - 12);
int numChildren = ToInt32(body, 0);
Id = ToInt32(body, 4);
TrackId = ToInt64(body, 8);
unknownOne = ToInt32(body, 16);
Rating = ToInt32(body, 20);
unknownTwo = ToInt32(body, 24);
OriginalDate = Utility.MacTimeToDate(ToUInt32(body, 28));
DigitizedDate = Utility.MacTimeToDate(ToUInt32(body, 32));
SourceImageSize = ToInt32(body, 36);
recordPadding = body.Length - 40;
for (int i = 0; i < numChildren; i++)
{
PhotoDetailRecord detail = new PhotoDetailRecord(IsBE);
detail.Read(reader);
if (detail.Type == PhotoDetailType.ThumbnailContainer)
{
names.Add(detail.ImageName);
}
else
{
FullName = detail.ImageName;
}
}
}
public override void Read(BinaryReader reader)
{
base.Read(reader);
byte[] body = reader.ReadBytes(this.HeaderOne - 12);
Type = (PhotoDetailType)ToInt16(body, 0);
switch (Type)
{
case PhotoDetailType.ThumbnailContainer:
case PhotoDetailType.ImageContainer:
ImageName = new ImageNameRecord(IsBE);
ImageName.Read(reader);
break;
case PhotoDetailType.FileName:
ReadString(reader, true);
break;
case PhotoDetailType.String:
ReadString(reader, false);
break;
default:
throw new DatabaseReadException("Unknown detail type: " + Type);
}
}
public ImageItemRecord(bool isbe) : base(isbe)
{
this.Name = "mhii";
recordPadding = 100;
FullName = new ImageNameRecord(isbe);
}
internal Thumbnail(Photo photo, ImageNameRecord record)
{
this.photo = photo;
this.record = record;
if (record.CorrelationId > 0)
{
Format = photo.PhotoDatabase.Device.LookupArtworkFormat(record.CorrelationId);
}
}
private byte[] GetNameData(ImageNameRecord record, Stream stream)
{
if (record.Dirty)
{
return(record.GetData(GetTempFile()));
}
else
{
return(record.GetData(stream));
}
}
private ImageNameRecord Pop(List <ImageNameRecord> list)
{
ImageNameRecord record = Peek(list);
if (record != null)
{
list.Remove(record);
}
return(record);
}
public Thumbnail CreateThumbnail()
{
ImageNameRecord name = new ImageNameRecord(item.IsBE);
item.AddName(name);
Thumbnail thumbnail = new Thumbnail(this, name);
thumbnails.Add(thumbnail);
return(thumbnail);
}
public void RemoveName(ImageNameRecord name)
{
names.Remove(name);
removedNames.Add(name);
}
public void AddName(ImageNameRecord name)
{
names.Add(name);
newNames.Add(name);
}
public PhotoDetailRecord(bool isbe, ImageNameRecord name, PhotoDetailType type) : this(isbe) {
Type = PhotoDetailType.ThumbnailContainer;
ImageName = name;
Type = type;
}
private void SaveThumbnails(List <ImageNameRecord> existingNames, List <ImageNameRecord> newNames,
List <ImageNameRecord> removedNames, ArtworkFormat format)
{
string thumbPath = GetThumbPath(format);
int fileLength = 0;
if (existingNames.Count > 0)
{
ImageNameRecord last = Peek(existingNames);
fileLength = last.ThumbnailOffset + last.ImageSize;
}
string thumbDir = Path.GetDirectoryName(thumbPath);
if (!Directory.Exists(thumbDir))
{
Directory.CreateDirectory(thumbDir);
}
using (FileStream stream = File.Open(thumbPath, FileMode.OpenOrCreate)) {
// process the removals, filling the gaps with new or existing records when possible
foreach (ImageNameRecord removal in removedNames)
{
// try to replace it with a new one
ImageNameRecord replacement = Pop(newNames);
if (replacement == null)
{
// no new ones, try to replace it with an existing one from the end of the file
ImageNameRecord record = Peek(existingNames);
if (record != null && record.ThumbnailOffset > removal.ThumbnailOffset)
{
replacement = record;
// it was the last one in the file, so we can reduce the file length
fileLength -= replacement.ImageSize;
}
}
if (replacement != null)
{
// write the replacement chunk into the old one's spot
byte[] data = GetNameData(replacement, stream);
replacement.ThumbnailOffset = removal.ThumbnailOffset;
replacement.SetData(stream, data);
replacement.Dirty = false;
existingNames.Sort(new ImageNameRecordSorter());
}
else if (fileLength > removal.ThumbnailOffset)
{
// we can't fill the gap, but it's ok to reduce the file length
fileLength = removal.ThumbnailOffset;
}
}
// process the additions by appending them to the file
foreach (ImageNameRecord addition in newNames)
{
byte[] data = GetNameData(addition, stream);
addition.ThumbnailOffset = fileLength;
addition.SetData(stream, data);
addition.Dirty = false;
fileLength += addition.ImageSize;
}
// lastly, flush any dirty existing records
foreach (ImageNameRecord existing in existingNames)
{
if (existing.Dirty)
{
byte[] data = GetNameData(existing, stream);
existing.SetData(stream, data);
}
}
stream.SetLength(fileLength);
}
}
