private PblNod LoadNod(long offset)
{
if (offset > reader.BaseStream.Length)
{
throw new PblFileException("Chyba v souboru PBL knihovny. Soubor neobsahuje všechny NOD sekce.");
}
reader.Seek(offset, SeekOrigin.Begin);
// kontrola, zda se opravdu jedna o NOD sekci
string hdr = reader.ReadBlockName();
if (hdr != PblFile105.BLOCK_NAME_NOD)
{
throw new PblFileException("Chyba v souboru PBL knihovny. Nebyla nalezena NOD sekce.");
}
int offset_previous = reader.ReadInt32(); // predchozi NOD
int offset_parent = reader.ReadInt32(); // parent NOD ???
int offset_next = reader.ReadInt32(); // nasledujici NOD
int unknown = reader.ReadInt32(); // ???????
short entries_count = reader.ReadInt16(); // pocet ENT (entries) patricich tomuto NOD
PblNod nod = new PblNod();
nod.nextOffset = offset_next;
nod.prevOffset = offset_previous;
nod.parentOffset = offset_parent;
nod.entCount = entries_count;
nod.offset = offset;
nod.entries = new PblEntry[entries_count];
return(nod);
}
private PblNod LoadNod(long offset)
{
if (offset > reader.BaseStream.Length)
{
throw new PblFileException("PBL corrupted. NOD section was not found.");
}
reader.Seek(offset, SeekOrigin.Begin);
// kontrola, zda se opravdu jedna o NOD sekci
string hdr = reader.ReadBlockName();
if (hdr != PblFile070.BLOCK_NAME_NOD)
{
throw new PblFileException("PBL corrupted. ENT section was not found.");
}
int offset_previous = reader.ReadInt32(); // predchozi NOD
int offset_parent = reader.ReadInt32(); // parent NOD ???
int offset_next = reader.ReadInt32(); // nasledujici NOD
int unknown = reader.ReadInt32(); // ???????
short entries_count = reader.ReadInt16(); // pocet ENT (entries) patricich tomuto NOD
PblNod nod = new PblNod();
nod.nextOffset = offset_next;
nod.prevOffset = offset_previous;
nod.parentOffset = offset_parent;
nod.entCount = entries_count;
nod.offset = offset;
nod.entries = new PblEntry[entries_count];
return(nod);
}
private PblNod LoadNod(long offset)
{
if (offset > reader.BaseStream.Length)
{
throw new PblFileException("PBL corrupted. NOD section was not found.");
}
reader.Seek(offset, SeekOrigin.Begin);
// is it really a NOD section?
string hdr = reader.ReadBlockName();
if (hdr != PblFile105.BLOCK_NAME_NOD)
{
throw new PblFileException("PBL corrupted. ENT section was not found.");
}
int offset_previous = reader.ReadInt32(); // prev NOD
int offset_parent = reader.ReadInt32(); // parent NOD ???
int offset_next = reader.ReadInt32(); // next NOD
int unknown = reader.ReadInt32(); // ???????
short entries_count = reader.ReadInt16(); // ENT (entries) count in this NOD
PblNod nod = new PblNod();
nod.nextOffset = offset_next;
nod.prevOffset = offset_previous;
nod.parentOffset = offset_parent;
nod.entCount = entries_count;
nod.offset = offset;
nod.entries = new PblEntry[entries_count];
return(nod);
}
private void LoadNodes()
{
ArrayList nods = new ArrayList();
PblNod root = LoadNod(PblFile105.OFFSET_FIRST_NOD);
root.parentNod = null;
LoadNodes(nods, root, root.offset);
this.nods = ( PblNod[] )nods.ToArray(System.Type.GetType("PowerDoc.PblNod"));
}
private PblNod LoadNodes(ArrayList nods, PblNod root, long offset)
{
PblNod nod = LoadNod(offset);
nod.parentNod = root;
nods.Add(nod);
if (nod.nextOffset != 0)
{
nod.leftNod = LoadNodes(nods, nod, nod.nextOffset);
}
if (nod.prevOffset != 0)
{
nod.rightNod = LoadNodes(nods, nod, nod.prevOffset);
}
return(nod);
}
private void LoadEntries(PblNod nod)
{
reader.Seek(nod.offset, SeekOrigin.Begin);
string hdr = reader.ReadBlockName();
if (hdr != PblFile105.BLOCK_NAME_NOD)
{
throw new PblFileException("Chyba v souboru PBL knihovny. Nebyla nalezena NOD sekce.");
}
reader.Seek(OFFSET_FIRST_ENT, SeekOrigin.Current);
for (int i = 0; i < nod.entCount; i++)
{
long offset = reader.Position;
hdr = reader.ReadBlockName();
if (hdr != PblFile105.BLOCK_NAME_ENT)
{
throw new PblFileException("Chyba v souboru PBL knihovny. Nebyla nalezena ENT sekce.");
}
string unknown = reader.ReadUnicodeString(4);
long dat_offset = reader.ReadInt32();
int entry_size = reader.ReadInt32();
DateTime dt = reader.ReadDateTime();
short comments_length = reader.ReadInt16();
short name_length = reader.ReadInt16();
string name = reader.ReadUnicodeString(name_length / 2);
PblEntry ent = new PblEntry();
ent.offset = offset;
ent.dataOffset = dat_offset;
ent.size = entry_size;
ent.time = dt;
ent.commentsLength = comments_length;
ent.name = name;
nod.entries[i] = ent;
this.entries.Add(ent.name, ent);
}
}
