/// <summary>Adds a new operand to the current visibility expression.</summary>
/// <param name="layer">the layer operand to be added.</param>
public virtual void AddOperand(PdfLayer layer)
{
GetPdfObject().Add(layer.GetPdfObject());
GetPdfObject().SetModified();
}
/// <summary>Fills the underlying PdfDictionary object with the current layers and their settings.</summary>
/// <remarks>
/// Fills the underlying PdfDictionary object with the current layers and their settings.
/// Note that it completely regenerates the dictionary, so your direct changes to the dictionary
/// will not take any affect.
/// </remarks>
/// <returns>the resultant dictionary</returns>
public virtual PdfObject FillDictionary()
{
PdfArray gr = new PdfArray();
foreach (PdfLayer layer in layers)
{
if (layer.GetTitle() == null)
{
gr.Add(layer.GetIndirectReference());
}
}
GetPdfObject().Put(PdfName.OCGs, gr);
// Save radio groups.
PdfArray rbGroups = null;
PdfDictionary d = GetPdfObject().GetAsDictionary(PdfName.D);
if (d != null)
{
rbGroups = d.GetAsArray(PdfName.RBGroups);
}
d = new PdfDictionary();
if (rbGroups != null)
{
d.Put(PdfName.RBGroups, rbGroups);
}
d.Put(PdfName.Name, new PdfString(CreateUniqueName(), PdfEncodings.UNICODE_BIG));
GetPdfObject().Put(PdfName.D, d);
IList <PdfLayer> docOrder = new List <PdfLayer>(layers);
for (int i = 0; i < docOrder.Count; i++)
{
PdfLayer layer = docOrder[i];
if (layer.GetParent() != null)
{
docOrder.Remove(layer);
i--;
}
}
PdfArray order = new PdfArray();
foreach (Object element in docOrder)
{
PdfLayer layer = (PdfLayer)element;
GetOCGOrder(order, layer);
}
d.Put(PdfName.Order, order);
PdfArray off = new PdfArray();
foreach (Object element in layers)
{
PdfLayer layer = (PdfLayer)element;
if (layer.GetTitle() == null && !layer.IsOn())
{
off.Add(layer.GetIndirectReference());
}
}
if (off.Size() > 0)
{
d.Put(PdfName.OFF, off);
}
else
{
d.Remove(PdfName.OFF);
}
PdfArray locked = new PdfArray();
foreach (PdfLayer layer in layers)
{
if (layer.GetTitle() == null && layer.IsLocked())
{
locked.Add(layer.GetIndirectReference());
}
}
if (locked.Size() > 0)
{
d.Put(PdfName.Locked, locked);
}
else
{
d.Remove(PdfName.Locked);
}
d.Remove(PdfName.AS);
AddASEvent(PdfName.View, PdfName.Zoom);
AddASEvent(PdfName.View, PdfName.View);
AddASEvent(PdfName.Print, PdfName.Print);
AddASEvent(PdfName.Export, PdfName.Export);
return(GetPdfObject());
}