/// <summary>
/// The internals for setProperty() and related calls, used after the node is
/// found or created.
/// </summary>
/// <param name="node">the newly created node</param>
/// <param name="value">the node value, can be <c>null</c></param>
/// <param name="newOptions">options for the new node, must not be <c>null</c>.</param>
/// <param name="deleteExisting">flag if the existing value is to be overwritten</param>
/// <exception cref="XmpException">thrown if options and value do not correspond</exception>
internal static void SetNode(XmpNode node, object value, PropertyOptions newOptions, bool deleteExisting)
{
if (deleteExisting)
{
node.Clear();
}
// its checked by setOptions(), if the merged result is a valid options set
node.Options.MergeWith(newOptions);
if (!node.Options.IsCompositeProperty)
{
// This is setting the value of a leaf node.
XmpNodeUtils.SetNodeValue(node, value);
}
else
{
if (value != null && value.ToString().Length > 0)
{
throw new XmpException("Composite nodes can't have values", XmpErrorCode.BadXPath);
}
node.RemoveChildren();
}
}