/// <seealso cref= "PdfOperator.Process(OCGParser, PdfLiteral, List{T})"> </seealso>
virtual public void Process(OCGParser parser, PdfLiteral @operator, IList <PdfObject> operands)
{
if (parser.IsVisible(operands))
{
parser.Process(@operator, operands, true);
}
}
/// <summary>
/// Uses the OCGParser on a page </summary>
/// <param name="parser"> the OCGParser </param>
/// <param name="page"> the page dictionary of the page that needs to be parsed. </param>
/// <exception cref="IOException"> </exception>
private void Parse(OCGParser parser, PdfDictionary page)
{
PRStream stream = (PRStream)page.GetAsStream(PdfName.CONTENTS);
PdfDictionary resources = page.GetAsDict(PdfName.RESOURCES);
parser.Parse(stream, resources);
}
/// <summary>
/// Removes layers from a PDF document </summary>
/// <param name="reader"> a PdfReader containing a PDF document </param>
/// <param name="layers"> a sequence of names of OCG layers </param>
/// <exception cref="IOException"> </exception>
public virtual void RemoveLayers(PdfReader reader, params string[] layers)
{
int n = reader.NumberOfPages;
ICollection<string> ocgs = new HashSet2<string>();
for (int i = 0; i < layers.Length; i++)
{
ocgs.Add(layers[i]);
}
OCGParser parser = new OCGParser(ocgs);
for (int i = 1; i <= n; i++)
{
PdfDictionary page = reader.GetPageN(i);
Parse(parser, page);
page.Remove(new PdfName("PieceInfo"));
RemoveAnnots(page, ocgs);
RemoveProperties(page, ocgs);
}
PdfDictionary root = reader.Catalog;
PdfDictionary ocproperties = root.GetAsDict(PdfName.OCPROPERTIES);
RemoveOCGsFromArray(ocproperties, PdfName.OCGS, ocgs);
PdfDictionary d = ocproperties.GetAsDict(PdfName.D);
if (d != null)
{
RemoveOCGsFromArray(d, PdfName.ON, ocgs);
RemoveOCGsFromArray(d, PdfName.OFF, ocgs);
RemoveOCGsFromArray(d, PdfName.LOCKED, ocgs);
RemoveOCGsFromArray(d, PdfName.RBGROUPS, ocgs);
RemoveOCGsFromArray(d, PdfName.ORDER, ocgs);
RemoveOCGsFromArray(d, PdfName.AS, ocgs);
}
reader.RemoveUnusedObjects();
}
/// <summary>
/// Processes an operator. </summary>
/// <param name="parser"> the parser that needs to process the operator </param>
/// <param name="operator"> the operator </param>
/// <param name="operands"> its operands </param>
/// <exception cref="Exception"> </exception>
protected internal static void ProcessOperator(OCGParser parser, PdfLiteral @operator, IList <PdfObject> operands)
{
PdfOperator op;
if (!operators.TryGetValue(@operator.ToString(), out op) || op == null)
{
op = operators[DEFAULTOPERATOR];
}
op.Process(parser, @operator, operands);
}
/// <summary>
/// Removes layers from a PDF document </summary>
/// <param name="reader"> a PdfReader containing a PDF document </param>
/// <param name="layers"> a sequence of names of OCG layers </param>
/// <exception cref="IOException"> </exception>
public virtual void RemoveLayers(PdfReader reader, params string[] layers)
{
int n = reader.NumberOfPages;
for (int i = 1; i <= n; i++)
{
reader.SetPageContent(i, reader.GetPageContent(i));
}
ICollection <string> ocgs = new HashSet2 <string>();
for (int i = 0; i < layers.Length; i++)
{
ocgs.Add(layers[i]);
}
OCGParser parser = new OCGParser(ocgs);
for (int i = 1; i <= n; i++)
{
PdfDictionary page = reader.GetPageN(i);
Parse(parser, page);
page.Remove(PdfName.PIECEINFO);
RemoveAnnots(page, ocgs);
RemoveProperties(page, ocgs);
}
PdfDictionary root = reader.Catalog;
PdfDictionary ocproperties = root.GetAsDict(PdfName.OCPROPERTIES);
if (ocproperties != null)
{
RemoveOCGsFromArray(ocproperties, PdfName.OCGS, ocgs);
PdfDictionary d = ocproperties.GetAsDict(PdfName.D);
if (d != null)
{
RemoveOCGsFromArray(d, PdfName.ON, ocgs);
RemoveOCGsFromArray(d, PdfName.OFF, ocgs);
RemoveOCGsFromArray(d, PdfName.LOCKED, ocgs);
RemoveOCGsFromArray(d, PdfName.RBGROUPS, ocgs);
RemoveOCGsFromArray(d, PdfName.ORDER, ocgs);
RemoveOCGsFromArray(d, PdfName.AS, ocgs);
}
PdfArray ocgsArray = ocproperties.GetAsArray(PdfName.OCGS);
if (ocgsArray != null && ocgsArray.IsEmpty())
{
root.Remove(PdfName.OCPROPERTIES);
if (PdfName.USEOC.Equals(root.GetAsName(PdfName.PAGEMODE)))
{
root.Remove(PdfName.PAGEMODE);
}
}
}
reader.RemoveUnusedObjects();
}
/// <seealso cref= "PdfOperator.Process(OCGParser, PdfLiteral, List{T})"> </seealso>
virtual public void Process(OCGParser parser, PdfLiteral @operator, IList <PdfObject> operands)
{
if ("BDC".Equals(@operator.ToString()) && operands.Count > 1 && PdfName.OC.Equals(operands[0]))
{
parser.CheckMarkedContentStart((PdfName)operands[1]);
}
else if ("BMC".Equals(@operator.ToString()))
{
parser.CheckMarkedContentStart(null);
}
parser.Process(@operator, operands, true);
if ("EMC".Equals(@operator.ToString()))
{
parser.CheckMarkedContentEnd();
}
}
/// <summary>
/// Removes layers from a PDF document </summary>
/// <param name="reader"> a PdfReader containing a PDF document </param>
/// <param name="layers"> a sequence of names of OCG layers </param>
/// <exception cref="IOException"> </exception>
public virtual void RemoveLayers(PdfReader reader, params string[] layers) {
int n = reader.NumberOfPages;
for (int i = 1; i <= n; i++)
reader.SetPageContent(i, reader.GetPageContent(i));
ICollection<string> ocgs = new HashSet2<string>();
for (int i = 0; i < layers.Length; i++) {
ocgs.Add(layers[i]);
}
OCGParser parser = new OCGParser(ocgs);
for (int i = 1; i <= n; i++) {
PdfDictionary page = reader.GetPageN(i);
Parse(parser, page);
page.Remove(PdfName.PIECEINFO);
RemoveAnnots(page, ocgs);
RemoveProperties(page, ocgs);
}
PdfDictionary root = reader.Catalog;
PdfDictionary ocproperties = root.GetAsDict(PdfName.OCPROPERTIES);
if (ocproperties != null) {
RemoveOCGsFromArray(ocproperties, PdfName.OCGS, ocgs);
PdfDictionary d = ocproperties.GetAsDict(PdfName.D);
if (d != null) {
RemoveOCGsFromArray(d, PdfName.ON, ocgs);
RemoveOCGsFromArray(d, PdfName.OFF, ocgs);
RemoveOCGsFromArray(d, PdfName.LOCKED, ocgs);
RemoveOCGsFromArray(d, PdfName.RBGROUPS, ocgs);
RemoveOCGsFromArray(d, PdfName.ORDER, ocgs);
RemoveOCGsFromArray(d, PdfName.AS, ocgs);
}
PdfArray ocgsArray = ocproperties.GetAsArray(PdfName.OCGS);
if (ocgsArray != null && ocgsArray.IsEmpty()) {
root.Remove(PdfName.OCPROPERTIES);
if (PdfName.USEOC.Equals(root.GetAsName(PdfName.PAGEMODE))) {
root.Remove(PdfName.PAGEMODE);
}
}
}
reader.RemoveUnusedObjects();
}
/// <summary>
/// Removes layers from a PDF document </summary>
/// <param name="reader"> a PdfReader containing a PDF document </param>
/// <param name="layers"> a sequence of names of OCG layers </param>
/// <exception cref="IOException"> </exception>
public virtual void RemoveLayers(PdfReader reader, params string[] layers)
{
int n = reader.NumberOfPages;
ICollection <string> ocgs = new HashSet2 <string>();
for (int i = 0; i < layers.Length; i++)
{
ocgs.Add(layers[i]);
}
OCGParser parser = new OCGParser(ocgs);
for (int i = 1; i <= n; i++)
{
PdfDictionary page = reader.GetPageN(i);
Parse(parser, page);
page.Remove(new PdfName("PieceInfo"));
RemoveAnnots(page, ocgs);
RemoveProperties(page, ocgs);
}
PdfDictionary root = reader.Catalog;
PdfDictionary ocproperties = root.GetAsDict(PdfName.OCPROPERTIES);
RemoveOCGsFromArray(ocproperties, PdfName.OCGS, ocgs);
PdfDictionary d = ocproperties.GetAsDict(PdfName.D);
if (d != null)
{
RemoveOCGsFromArray(d, PdfName.ON, ocgs);
RemoveOCGsFromArray(d, PdfName.OFF, ocgs);
RemoveOCGsFromArray(d, PdfName.LOCKED, ocgs);
RemoveOCGsFromArray(d, PdfName.RBGROUPS, ocgs);
RemoveOCGsFromArray(d, PdfName.ORDER, ocgs);
RemoveOCGsFromArray(d, PdfName.AS, ocgs);
}
reader.RemoveUnusedObjects();
}
/// <seealso cref= "PdfOperator.Process(OCGParser, PdfLiteral, List{T})"> </seealso>
virtual public void Process(OCGParser parser, PdfLiteral @operator, IList <PdfObject> operands)
{
parser.Process(@operator, operands, false);
}
/// <summary>
/// Uses the OCGParser on a page </summary>
/// <param name="parser"> the OCGParser </param>
/// <param name="page"> the page dictionary of the page that needs to be parsed. </param>
/// <exception cref="IOException"> </exception>
private void Parse(OCGParser parser, PdfDictionary page) {
PRStream stream = (PRStream) page.GetAsStream(PdfName.CONTENTS);
PdfDictionary resources = page.GetAsDict(PdfName.RESOURCES);
parser.Parse(stream, resources);
}
/// <seealso cref= "PdfOperator.Process(OCGParser, PdfLiteral, List{T})"> </seealso>
public void Process(OCGParser parser, PdfLiteral @operator, IList<PdfObject> operands) {
if (parser.IsVisible(operands)) {
parser.Process(@operator, operands, true);
}
}
/// <seealso cref= "PdfOperator.Process(OCGParser, PdfLiteral, List{T})"> </seealso>
public void Process(OCGParser parser, PdfLiteral @operator, IList<PdfObject> operands) {
if ("BDC".Equals(@operator.ToString()) && operands.Count > 1 && PdfName.OC.Equals(operands[0])) {
parser.CheckMarkedContentStart((PdfName) operands[1]);
}
else if ("BMC".Equals(@operator.ToString())) {
parser.CheckMarkedContentStart(null);
}
parser.Process(@operator, operands, true);
if ("EMC".Equals(@operator.ToString())) {
parser.CheckMarkedContentEnd();
}
}
/// <seealso cref= "PdfOperator.Process(OCGParser, PdfLiteral, List{T})"> </seealso>
public void Process(OCGParser parser, PdfLiteral @operator, IList<PdfObject> operands) {
parser.Process(@operator, operands, false);
}
/// <summary>
/// Processes an operator. </summary>
/// <param name="parser"> the parser that needs to process the operator </param>
/// <param name="operator"> the operator </param>
/// <param name="operands"> its operands </param>
/// <exception cref="Exception"> </exception>
protected internal static void ProcessOperator(OCGParser parser, PdfLiteral @operator, IList<PdfObject> operands) {
PdfOperator op = operators[@operator.ToString()];
if (op == null) {
op = operators[DEFAULTOPERATOR];
}
op.Process(parser, @operator, operands);
}
