private void ConnectPageTree(BBeB book)
{
Debug.WriteLineIf(s_bDebugMode, "Connecting page tree");
PageTreeObject pageTree = (PageTreeObject)book.FindFirstObject(typeof(PageTreeObject));
if (pageTree == null)
{
throw new InvalidBookException("Couldn't find the required PageTree object");
}
UInt32ArrayTag pageListTag = (UInt32ArrayTag)pageTree.FindFirstTag(TagId.PageList);
if (pageListTag == null)
{
throw new InvalidBookException("Couldn't find the required PageList tag");
}
foreach (uint id in pageListTag.Value)
{
PageObject page = (PageObject)book.FindObject((ushort)id);
if (page == null)
{
throw new InvalidBookException("Can't find page id " + id);
}
pageTree.Pages.Add(page);
}
}
private void ConnectPage(PageObject page, BBeB book)
{
Debug.WriteLineIf(s_bDebugMode, "Connecting page: " + page.ID);
UInt32ArrayTag childIDs = (UInt32ArrayTag)page.FindFirstTag(TagId.PageObjectIds);
if (childIDs != null)
{
foreach (uint id in childIDs.Value)
{
BBeBObject child = book.FindObject((ushort)id);
if (child == null)
{
throw new InvalidBookException("Can't find object id " + id);
}
Debug.Assert(child.ID == id);
Debug.WriteLineIf(s_bDebugMode, " Child: " + child.GetType().ToString() + " - id:" + child.ID);
page.Children.Add(child);
}
}
UInt32Tag objInfoTag = (UInt32Tag)page.FindFirstTag(TagId.ObjectInfoLink);
if (objInfoTag != null)
{
page.InfoObj = book.FindObject((ushort)objInfoTag.Value);
if (page.InfoObj == null)
{
throw new InvalidBookException("Can't find info object id " + objInfoTag.Value);
}
}
StreamTagGroup stream = (StreamTagGroup)page.FindFirstTag(TagId.StreamGroup);
if (stream != null)
{
BBeBObject tempObj = new BBeBObject(0x0);
page.StreamTags = BBeBTagFactory.ParseAllTags(tempObj, stream.Data);
}
UInt32Tag linkTag = (UInt32Tag)page.FindFirstTag(TagId.Link);
if (linkTag != null)
{
BBeBObject linkedObj = book.FindObject((ushort)linkTag.Value);
if (linkedObj == null)
{
throw new InvalidBookException("Can't find object id " + linkTag.Value);
}
page.LinkObj = linkedObj;
}
}
/// <summary>
/// Write the tag serialized data using the supplied writer.
/// </summary>
/// <remarks>
/// This is a really KLUDGY routine. Even though it deals with primitive
/// types it has knowledge of what those types mean. For example the UInt16ArrayTag
/// doesn't have a length value written, but the UInt32ArrayTag does. This is
/// a very brittle solution to this problem and needs to be fixed. The solution is
/// to have a serialize method for each tag type (uggh) - so you see why I took
/// this shortcut.
/// </remarks>
/// <param name="tag"></param>
/// <param name="writer"></param>
private static void SerializeTag(BBeBTag tag, BBeBinaryWriter writer)
{
ushort id = (ushort)(0xf500 + tag.Id);
if (tag.GetType() == typeof(ByteTag))
{
ByteTag t = (ByteTag)tag;
writer.Write(id);
writer.Write(t.Value);
}
else if (tag.GetType() == typeof(StreamTagGroup))
{
StreamTagSerializer.Serialize(writer, (StreamTagGroup)tag);
}
else if (tag.GetType() == typeof(ByteArrayTag))
{
ByteArrayTag t = (ByteArrayTag)tag;
if (t.Id == TagId.StreamStart)
{
byte[] data = t.Value;
writer.Write(BBeBLib.TagId.StreamSize);
writer.Write((uint)data.Length);
writer.Write(id);
writer.Write(data);
writer.Write(BBeBLib.TagId.StreamEnd);
}
else
{
writer.Write(id);
writer.Write(t.Value);
}
}
else if (tag.GetType() == typeof(UInt16Tag))
{
UInt16Tag t = (UInt16Tag)tag;
writer.Write(id);
writer.Write(t.Value);
}
else if (tag.GetType() == typeof(UInt16ArrayTag))
{
UInt16ArrayTag t = (UInt16ArrayTag)tag;
writer.Write(id);
foreach (ushort val in t.Value)
{
writer.Write(val);
}
}
else if (tag.GetType() == typeof(UInt32Tag))
{
UInt32Tag t = (UInt32Tag)tag;
// StreamSize is written out by the StreamStart tag as the data may be compressed
if (t.Id != TagId.StreamSize)
{
writer.Write(id);
// Zero byte tags (but have hardcoded data associated with them
if (t.Id != TagId.BaseButtonStart &&
t.Id != TagId.FocusinButtonStart &&
t.Id != TagId.PushButtonStart &&
t.Id != TagId.UpButtonStart)
{
writer.Write(t.Value);
}
}
}
else if (tag.GetType() == typeof(UInt32ArrayTag))
{
UInt32ArrayTag t = (UInt32ArrayTag)tag;
writer.Write(id);
// JumpTo doesn't have a length set and is hardcoded to 2!
if (t.Id != TagId.JumpTo)
{
writer.Write((ushort)t.Value.Length);
}
foreach (uint val in t.Value)
{
writer.Write(val);
}
}
else if (tag.GetType() == typeof(StringTag))
{
StringTag t = (StringTag)tag;
writer.Write(id);
writer.Write(t.Value);
}
else if (tag.GetType() == typeof(MessageTag))
{
MessageTag t = (MessageTag)tag;
writer.Write(id);
writer.Write((ushort)t.parameters);
byte[] data = System.Text.Encoding.Unicode.GetBytes(t.param1);
writer.Write((ushort)data.Length);
writer.Write(data);
data = System.Text.Encoding.Unicode.GetBytes(t.param2);
writer.Write((ushort)data.Length);
writer.Write(data);
}
else if (tag.GetType() == typeof(EmpDotsCodeTag))
{
EmpDotsCodeTag t = (EmpDotsCodeTag)tag;
writer.Write(id);
writer.Write((uint)t.Value);
SerializeTag(t.FontFace, writer);
writer.Write(t.DotsCode);
}
else if (tag.GetType() == typeof(IDOnlyTag))
{
IDOnlyTag t = (IDOnlyTag)tag;
if (t.Id != TagId.StreamEnd)
{
writer.Write(id);
}
}
else if (tag.GetType() == typeof(BBeBTag))
{
BBeBTag t = (BBeBTag)tag;
if (t.Id != TagId.StreamEnd)
{
writer.Write(id);
}
}
else
{
Debug.Assert(false, "Unknown tag type: " + tag.GetType().ToString());
}
}
