// Return the value, looking up any indirect ref.
public void GetValue(MHOctetString str, MHEngine engine)
{
if (m_fIsDirect)
{
str.Copy(m_Direct);
}
else
{
MHUnion result = new MHUnion();
MHRoot pBase = engine.FindObject(m_Indirect);
pBase.GetVariableValue(result, engine);
// From my reading of the MHEG documents implicit conversion is only
// performed when assigning variables. Nevertheless the Channel 4
// Teletext assumes that implicit conversion takes place here as well.
if (result.Type == MHUnion.U_Int)
{
// Implicit conversion of string to integer.
MHOctetString s = new MHOctetString("" + result.Int);
str.Copy(s);
}
else
{
result.CheckType(MHUnion.U_String);
str.Copy(result.String);
}
}
}
// void GetDefaultFont(MHFontBody &font); // Not currently implemented
public void GetDefaultFontAttrs(MHOctetString str)
{
MHApplication pApp = CurrentApp();
if (pApp != null && pApp.FontAttrs.Size > 0)
{
str.Copy(pApp.FontAttrs);
}
else
{
str.Copy("plain.24.24.0"); // TODO: Check this.
}
}
public void Initialise(MHParseNode p, MHEngine engine)
{
if (p.NodeType == MHParseNode.PNInt)
{
m_nObjectNo = p.GetIntValue();
// Set the group id to the id of this group.
m_GroupId.Copy(engine.GetGroupId());
}
else if (p.NodeType == MHParseNode.PNSeq)
{
MHParseNode pFirst = p.GetSeqN(0);
MHOctetString groupId = new MHOctetString();
pFirst.GetStringValue(m_GroupId);
m_nObjectNo = p.GetSeqN(1).GetIntValue();
}
else
{
p.Failure("ObjectRef: Argument is not int or sequence");
}
}
public void Copy(MHContentRef cr)
{
m_ContentRef.Copy(cr.m_ContentRef);
}
public MHUnion(MHOctetString strVal)
{
m_Type = U_String;
m_StrVal = new MHOctetString();
m_StrVal.Copy(strVal);
}
public void SetFromString(string str)
{
m_nColIndex = -1;
m_ColStr.Copy(new MHOctetString(str));
}
public void Copy(MHFontBody fb)
{
m_DirFont.Copy(fb.m_DirFont);
m_IndirFont.Copy(fb.m_IndirFont);
}