/// <summary>
/// Compiles a new Package File from the currently stored Information
/// </summary>
/// <returns>The MemoryStream representing the new Package File</returns>
public MemoryStream Build()
{
this.LockStream();
OpenReader();
System.IO.MemoryStream ms = new MemoryStream(10000);
System.IO.BinaryWriter writer = new BinaryWriter(ms);
//make sure we write the correct Version!
if ((header.majorversion == 1) && (header.minorversion == 0))
{
header.minorversion = 1;
header.majorversion = 1;
filelist = null;
}
int oldcount = 0;
if (this.Index != null)
{
oldcount = this.Index.Length;
}
//now save the stuff
header.Save(writer);
//now save the files
PackedFileDescriptors tmpindex = new PackedFileDescriptors();
ArrayList tmpcmp = new ArrayList();
if (this.fileindex == null)
{
fileindex = new SimPe.Interfaces.Files.IPackedFileDescriptor[0];
}
PrepareCompression();
foreach (PackedFileDescriptor pfd in this.fileindex)
{
pfd.Changed = false;
//we write the filelist as last File
if (pfd == this.filelist)
{
continue;
}
if (pfd.Type == Data.MetaData.DIRECTORY_FILE)
{
continue;
}
if (pfd.MarkForDelete)
{
continue;
}
//PackedFileDescriptor newpfd = (PackedFileDescriptor)pfd.Clone();
PackedFileDescriptor newpfd = (PackedFileDescriptor)pfd;
PackedFile pf = null;
if (pfd.MarkForReCompress)
{
try
{
if (pfd.HasUserdata)
{
pf = new PackedFile(PackedFile.Compress(pfd.UserData));
pf.uncsize = (uint)pfd.UserData.Length;
}
else
{
byte[] data = ((PackedFile)this.Read(pfd)).UncompressedData;
pf = new PackedFile(PackedFile.Compress(data));
pf.uncsize = (uint)data.Length;
}
pf.size = pf.data.Length;
pf.signature = Data.MetaData.COMPRESS_SIGNATURE;
pf.headersize = 9;
newpfd.size = pf.data.Length;
newpfd.SetUserData(null, false);
//recreate the FileList
filelist = null;
}
catch (Exception ex)
{
pf = (PackedFile)this.Read(pfd);
newpfd.size = pf.data.Length;
newpfd.SetUserData(pfd.UserData, false);
if (Helper.DebugMode)
{
Helper.ExceptionMessage(ex);
}
}
}
else
{
pf = (PackedFile)this.Read(pfd);
newpfd.size = pf.data.Length;
newpfd.SetUserData(pfd.UserData, false);
}
newpfd.offset = (uint)writer.BaseStream.Position;
newpfd.Changed = false;
newpfd.MarkForReCompress = false;
newpfd.fldata = pf;
newpfd.WasCompressed = pf.IsCompressed;
tmpcmp.Add(pf.IsCompressed);
tmpindex.Add(newpfd);
writer.Write(pf.data);
}
//Last Entry should be the Filelist
WriteFileList(writer, ref tmpindex, tmpcmp);
//create a new Index
IPackedFileDescriptor[] myindex = new PackedFileDescriptor[tmpindex.Count];
tmpindex.CopyTo(myindex);
//write the hole index
header.HoleIndex.Offset = 0;
header.HoleIndex.Size = (int)(header.HoleIndex.ItemSize * 0);
header.HoleIndex.Count = 0;
holeindex = new HoleIndexItem[0];
//write the packed Fileindex
header.Index.Offset = (uint)writer.BaseStream.Position;
header.Index.Size = (int)(header.Index.ItemSize * myindex.Length);
header.Index.Count = myindex.Length;
SaveIndex(writer, myindex);
Index = myindex;
//rewrite Header
ms.Seek(0, SeekOrigin.Begin);
header.Save(writer);
ms.Seek(0, SeekOrigin.Begin);
this.UnLockStream();
CloseReader();
FireIndexEvent();
if (Index.Length < oldcount)
{
this.FireRemoveEvent();
}
else if (Index.Length > oldcount)
{
this.FireAddEvent();
}
return(ms);
}
