internal virtual Array searchData(int tag)
{
TiffDirData dirData = search(tag);
if (dirData == null)
{
return(Array.CreateInstance(typeof(object), 0));
}
return(dirData.Data.getContent());
}
/// <summary>
/// Read a piece of info.
/// </summary>
/// <param name="tag">Tag of the info to be read.</param>
/// <param name="fid">Zero-based index of images.</param>
/// <returns>An instance of TIFFinfo that contains the info.</returns>
public virtual TiffData getInfo(int tag, int fid)
{
if (fid < 0 || fid >= IFDs.Length)
{
return(null);
}
TiffStruct fileData = IFDs[fid];
TiffDirData dir = fileData.search(tag);
if (dir == null)
{
return(null);
}
if (dir.Offset > 0)
{
reader.BaseStream.Seek(dir.Offset, System.IO.SeekOrigin.Begin);
dir.readData(reader);
}
return(dir.Data);
}
internal virtual void setFromInfoCollection(TiffInfoCollection allInfo)
{
List <TiffDirData> dirList = new List <TiffDirData>();
foreach (KeyValuePair <ushort, TiffInfo> pair in allInfo.InfoCollection)
{
if (pair.Value.Data == null)
{
continue;
}
if (pair.Value.Data.Count == 0)
{
continue;
}
TiffDirData temp = new TiffDirData();
temp.Tag = pair.Value.Tag;
temp.Data = pair.Value.Data.Clone() as TiffData;
dirList.Add(temp);
}
dirArray = dirList.ToArray();
sort();
}