/// <summary>Gets an unmodifiable collection of marked content references on page.</summary>
/// <remarks>
/// Gets an unmodifiable collection of marked content references on page.
/// NOTE: Do not remove tags when iterating over returned collection, this could
/// lead to the ConcurrentModificationException, because returned collection is backed by the internal list of the
/// actual page tags.
/// </remarks>
public virtual ICollection <PdfMcr> GetPageMarkedContentReferences(PdfPage page)
{
IDictionary <int, PdfMcr> pageMcrs = GetParentTreeHandler().GetPageMarkedContentReferences(page);
return(pageMcrs != null?JavaCollectionsUtil.UnmodifiableCollection(pageMcrs.Values) : null);
}
/// <summary>Gets an unmodifiable collection of marked content references on page.</summary>
/// <remarks>
/// Gets an unmodifiable collection of marked content references on page.
/// NOTE: Do not remove tags when iterating over returned collection, this could
/// lead to the ConcurrentModificationException, because returned collection is backed by the internal list of the
/// actual page tags.
/// </remarks>
/// <param name="page">
///
/// <see cref="iText.Kernel.Pdf.PdfPage"/>
/// to obtain unmodifiable collection of marked content references
/// </param>
/// <returns>the unmodifiable collection of marked content references on page, if no Mcrs defined returns null
/// </returns>
public virtual ICollection <PdfMcr> GetPageMarkedContentReferences(PdfPage page)
{
ParentTreeHandler.PageMcrsContainer pageMcrs = GetParentTreeHandler().GetPageMarkedContentReferences(page);
return(pageMcrs != null?JavaCollectionsUtil.UnmodifiableCollection(pageMcrs.GetAllMcrsAsCollection()) :
null);
}
