private ObjectCollection TraversePagesTree(Object top)
{
ObjectCollection retval = new ObjectCollection();
if (top.Type == "Page")
{
Utility.TraceLine("Found a page: " + top.ToString());
retval.Add(top);
return(retval);
}
if (top.Type == "Pages")
{
DictionaryItem kids = top.Dictionary.Get("Kids");
foreach (Object kid in kids.ValueAsObjects(m_objects))
{
retval.Add(TraversePagesTree(kid));
}
return(retval);
}
if (top.Type == "")
{
foreach (Object kid in top.DirectValueAsObjects(m_objects))
{
retval.Add(TraversePagesTree(kid));
}
return(retval);
}
throw new RuntimeException("Unknown object type \"" + top.Type + "\" in object " + top.Number +
" " + top.Generation + " pages tree");
}
public Content(Pdf Document, Object PageObject)
{
if (PageObject.Number == -1)
{
throw new RuntimeException("Page object is invalid");
}
DictionaryItem di = PageObject.Dictionary.Get("Contents");
if (!di.Valid)
{
throw new RuntimeException("Page object does not refer to a content object");
}
m_objects = di.ValueAsObjects(Document.Objects);
if (m_objects.Count == 0)
{
throw new RuntimeException("Page object " + PageObject.Number + " " + PageObject.Generation +
" does not refer to a content object which is valid");
}
}
public ObjectCollection DirectValueAsObjects(ObjectCollection objs)
{
DictionaryItem di = new DictionaryItem("Direct", DirectValue);
return(di.ValueAsObjects(objs));
}
