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/Document for PDF/UA-2 in TOC

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John Whitington 2025-03-20 11:48:39 +00:00
parent 59eb6a3573
commit 960b444e6e
1 changed files with 22 additions and 13 deletions
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35
cpdftoc.ml
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@ -275,10 +275,25 @@ let typeset_table_of_contents ~font ~fontsize ~title ~bookmark ~dotleader ~proce
in
if process_struct_tree then
begin
(* Get indirect of top-level /Document *)
let top_level_document =
match subformat with Some Cpdfua.PDFUA2 ->
begin match Pdf.lookup_chain pdf pdf.Pdf.trailerdict ["/Root"; "/StructTreeRoot"] with
| Some d ->
begin match Pdf.lookup_immediate "/K" d with
| Some (Pdf.Indirect i) -> i
| Some (Pdf.Array [Pdf.Indirect i]) -> i
| _ -> 0
end
| _ -> 0
end
| _ -> 0
in
let struct_tree_root =
match Pdf.lookup_immediate "/StructTreeRoot" (Pdf.lookup_obj pdf pdf.Pdf.root) with
| Some (Pdf.Indirect i) -> i
| _ -> 0 (* Will never happen, because we ran ensure_minimal_struct_tree *)
if top_level_document > 0 then top_level_document else
match Pdf.lookup_immediate "/StructTreeRoot" (Pdf.lookup_obj pdf pdf.Pdf.root) with
| Some (Pdf.Indirect i) -> i
| _ -> 0 (* Will never happen, because we ran ensure_minimal_struct_tree *)
in
let p_struct_elem_first_page =
Pdf.addobj pdf
@ -355,15 +370,9 @@ let typeset_table_of_contents ~font ~fontsize ~title ~bookmark ~dotleader ~proce
(* FIXME Move this code up, and return i so we can put the proper /P parent entries in our structure elements. They should point to /Document now not the /StructTreeRoot. *)
begin match Pdf.lookup_chain pdf pdf.Pdf.trailerdict ["/Root"; "/StructTreeRoot"] with
| Some d ->
(* Get indirect of top-level /Document *)
let i =
match Pdf.lookup_immediate "/K" d with
| Some (Pdf.Indirect i) -> Some i
| Some (Pdf.Array [Pdf.Indirect i]) -> Some i
| _ -> None
in
if i = None then () else
let obj = Pdf.lookup_obj pdf (unopt i) in
if top_level_document = 0 then () else
let obj = Pdf.lookup_obj pdf top_level_document in
let obj' =
let k' =
match Pdf.lookup_direct pdf "/K" obj with
@ -373,7 +382,7 @@ let typeset_table_of_contents ~font ~fontsize ~title ~bookmark ~dotleader ~proce
in
Pdf.add_dict_entry obj "/K" k'
in
Pdf.addobj_given_num pdf (unopt i, obj')
Pdf.addobj_given_num pdf (top_level_document, obj')
| _ -> ()
end
else