getParent method of class PDField doesn't consider both parent keys "P" and
"Parent".
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Key: PDFBOX-952
URL: https://issues.apache.org/jira/browse/PDFBOX-952
Project: PDFBox
Issue Type: Bug
Components: PDModel
Affects Versions: 1.4.0
Environment: Irrelevant for this issue.
Reporter: Robert McHugh
Fix For: 1.5.0
The getParent method should lookup a parent using both valid parent keys: "P"
and "Parent". The method findFieldType of this class already performs it's
lookup using both keys.
Additionally method getParent of the class PDField has a return type of
PDField. While this is appropriate for nested fields this doesn't work for
PDPages. I have an AcroForm I'm working with that sets a Page object to be the
parent of an AcroForm Field. It does this specifically by setting the "P" key
to the object reference for a particular page (e.g. << /P 102 0 R/FT/Btn >>
with "102 0 R" being the aforementioned object reference).
As a result of this design decision there is no way of getting a field's parent
page from the getField method. We are required to get the backing
COSDictionary, call getDictionaryObject("P") and create a PDPage Object from
scratch. This is workable, but not optimal. We'd prefer avoiding the COS data
types wherever possible.
Thanks,
Robert McHugh
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