private void AddPagesFromDict(PdfObject dictRef, IList <PdfDictionary> pages, IList <RefKey> pagesRef)
{
PdfDictionary dict = (PdfDictionary)PdfReader.GetPdfObject(dictRef);
if (dict.IsPages())
{
PdfArray kids = dict.GetAsArray(PdfName.KIDS);
if (kids == null)
{
return;
}
foreach (PdfObject kid in kids)
{
AddPagesFromDict(kid, pages, pagesRef);
}
}
else if (dict.IsPage())
{
pages.Add(dict);
pagesRef.Add(new RefKey((PRIndirectReference)dictRef));
}
}
private bool ObjectsIsEquals(PdfObject outObj, PdfObject cmpObj)
{
PdfObject outDirectObj = PdfReader.GetPdfObject(outObj);
PdfObject cmpDirectObj = PdfReader.GetPdfObject(cmpObj);
if (outDirectObj == null || cmpDirectObj.Type != outDirectObj.Type)
{
return(false);
}
if (cmpDirectObj.IsDictionary())
{
PdfDictionary cmpDict = (PdfDictionary)cmpDirectObj;
PdfDictionary outDict = (PdfDictionary)outDirectObj;
if (cmpDict.IsPage())
{
if (!outDict.IsPage())
{
return(false);
}
RefKey cmpRefKey = new RefKey((PRIndirectReference)cmpObj);
RefKey outRefKey = new RefKey((PRIndirectReference)outObj);
if (cmpPagesRef.Contains(cmpRefKey) && cmpPagesRef.IndexOf(cmpRefKey) == outPagesRef.IndexOf(outRefKey))
{
return(true);
}
return(false);
}
if (!ObjectsIsEquals(outDict, cmpDict))
{
return(false);
}
}
else if (cmpDirectObj.IsStream())
{
if (!ObjectsIsEquals((PRStream)outDirectObj, (PRStream)cmpDirectObj))
{
return(false);
}
}
else if (cmpDirectObj.IsArray())
{
if (!ObjectsIsEquals((PdfArray)outDirectObj, (PdfArray)cmpDirectObj))
{
return(false);
}
}
else if (cmpDirectObj.IsName())
{
if (!ObjectsIsEquals((PdfName)outDirectObj, (PdfName)cmpDirectObj))
{
return(false);
}
}
else if (cmpDirectObj.IsNumber())
{
if (!ObjectsIsEquals((PdfNumber)outDirectObj, (PdfNumber)cmpDirectObj))
{
return(false);
}
}
else if (cmpDirectObj.IsString())
{
if (!ObjectsIsEquals((PdfString)outDirectObj, (PdfString)cmpDirectObj))
{
return(false);
}
}
else if (cmpDirectObj.IsBoolean())
{
if (!ObjectsIsEquals((PdfBoolean)outDirectObj, (PdfBoolean)cmpDirectObj))
{
return(false);
}
}
else
{
throw new InvalidOperationException();
}
return(true);
}
