/// <summary>Appends a qualifier to the qualifier list and sets respective options.</summary>
/// <param name="qualNode">a qualifier node.</param>
/// <exception cref="iText.Kernel.XMP.XMPException"></exception>
public virtual void AddQualifier(iText.Kernel.XMP.Impl.XMPNode qualNode)
{
AssertQualifierNotExisting(qualNode.GetName());
qualNode.SetParent(this);
qualNode.GetOptions().SetQualifier(true);
GetOptions().SetHasQualifiers(true);
// contraints
if (qualNode.IsLanguageNode())
{
// "xml:lang" is always first and the option "hasLanguage" is set
options.SetHasLanguage(true);
GetQualifier().Insert(0, qualNode);
}
else
{
if (qualNode.IsTypeNode())
{
// "rdf:type" must be first or second after "xml:lang" and the option "hasType" is set
options.SetHasType(true);
GetQualifier().Insert(!options.GetHasLanguage() ? 0 : 1, qualNode);
}
else
{
// other qualifiers are appended
GetQualifier().Add(qualNode);
}
}
}
/// <summary>Adds a node as child to this node.</summary>
/// <param name="node">an XMPNode</param>
/// <exception cref="iText.Kernel.XMP.XMPException"></exception>
public virtual void AddChild(iText.Kernel.XMP.Impl.XMPNode node)
{
// check for duplicate properties
AssertChildNotExisting(node.GetName());
node.SetParent(this);
GetChildren().Add(node);
}
/// <summary>Internal find.</summary>
/// <param name="list">the list to search in</param>
/// <param name="expr">the search expression</param>
/// <returns>Returns the found node or <code>nulls</code>.</returns>
private iText.Kernel.XMP.Impl.XMPNode Find(IList list, String expr)
{
if (list != null)
{
for (IEnumerator it = list.GetEnumerator(); it.MoveNext();)
{
iText.Kernel.XMP.Impl.XMPNode child = (iText.Kernel.XMP.Impl.XMPNode)it
.Current;
if (child.GetName().Equals(expr))
{
return(child);
}
}
}
return(null);
}
/// <summary>Adds a node as child to this node.</summary>
/// <param name="index">
/// the index of the node <em>before</em> which the new one is inserted.
/// <em>Note:</em> The node children are indexed from [1..size]!
/// An index of size + 1 appends a node.
/// </param>
/// <param name="node">an XMPNode</param>
/// <exception cref="iText.Kernel.XMP.XMPException"></exception>
public virtual void AddChild(int index, iText.Kernel.XMP.Impl.XMPNode node)
{
AssertChildNotExisting(node.GetName());
node.SetParent(this);
GetChildren().Insert(index - 1, node);
}