Preparing to add fontpacks to -table-of-contents
This commit is contained in:
John Whitington
parent
62877d1ac9
commit
62e4f6f7d1
66
cpdftoc.ml
66
cpdftoc.ml
|
|
@ -14,11 +14,12 @@ let rec real_newline = function
|
|||
| x::r -> x::real_newline r
|
||||
| [] -> []
|
||||
|
||||
(* Cpdftype codepoints from a font and UTF8 *)
|
||||
let of_utf8 f t =
|
||||
Pdftext.codepoints_of_utf8 t
|
||||
(* Run of Font / Text elements from a fontpack and UTF8 text *)
|
||||
let of_utf8 fontpack t =
|
||||
[]
|
||||
(* Pdftext.codepoints_of_utf8 t
|
||||
|> option_map (Pdftext.charcode_extractor_of_font_real f)
|
||||
|> map char_of_int
|
||||
|> map char_of_int*)
|
||||
|
||||
(* Cpdftype codepoints from a font and PDFDocEndoding string *)
|
||||
let of_pdfdocencoding f t =
|
||||
|
|
@ -38,6 +39,7 @@ let shorten_text widths l t =
|
|||
(* Calculate the used codepoints *)
|
||||
let used pdf fastrefnums labels title marks =
|
||||
let codepoints = null_hash () in
|
||||
Hashtbl.add codepoints (int_of_char '.') ();
|
||||
let addtext t =
|
||||
iter
|
||||
(fun c -> Hashtbl.replace codepoints c ())
|
||||
|
|
@ -66,15 +68,13 @@ let typeset_table_of_contents ~font ~fontsize ~title ~bookmark pdf =
|
|||
let refnums = Pdf.page_reference_numbers pdf in
|
||||
let fastrefnums = hashtable_of_dictionary (combine refnums (indx refnums)) in
|
||||
let codepoints = map fst (list_of_hashtbl (used pdf fastrefnums labels title marks)) in
|
||||
let font =
|
||||
match font with
|
||||
| Cpdfembed.PreMadeFontPack t -> hd (fst t)
|
||||
| Cpdfembed.EmbedInfo {fontfile; fontname; encoding} ->
|
||||
hd (fst (Cpdfembed.embed_truetype pdf ~fontfile ~fontname ~codepoints ~encoding))
|
||||
| Cpdfembed.ExistingNamedFont -> raise (Pdf.PDFError "Cannot use existing font with -table-of-contents")
|
||||
in
|
||||
let f, fs = (font, fontsize) in
|
||||
let _, bfs as big = (font, fontsize *. 2.) in
|
||||
let fontpack =
|
||||
match font with
|
||||
| Cpdfembed.PreMadeFontPack t -> t
|
||||
| Cpdfembed.EmbedInfo {fontfile; fontname; encoding} ->
|
||||
Cpdfembed.embed_truetype pdf ~fontfile ~fontname ~codepoints ~encoding
|
||||
| Cpdfembed.ExistingNamedFont -> raise (Pdf.PDFError "Cannot use existing font with -table-of-contents")
|
||||
in
|
||||
let firstpage = hd (Pdfpage.pages_of_pagetree pdf) in
|
||||
let width, firstpage_papersize, pmaxx, pmaxy, margin =
|
||||
let width, height, xmax, ymax =
|
||||
|
|
@ -88,34 +88,34 @@ let typeset_table_of_contents ~font ~fontsize ~title ~bookmark pdf =
|
|||
| Some r -> Some (Pdf.parse_rectangle pdf r)
|
||||
| None -> None
|
||||
in
|
||||
let width =
|
||||
(*let width =
|
||||
match firstpage_cropbox with
|
||||
| Some (xmin, _, xmax, _) -> xmax -. xmin
|
||||
| None -> width
|
||||
in
|
||||
in*)
|
||||
let lines =
|
||||
map
|
||||
(fun mark ->
|
||||
let indent = float mark.Pdfmarks.level *. fontsize *. 2. in
|
||||
let text = of_pdfdocencoding f mark.Pdfmarks.text in
|
||||
let label =
|
||||
if mark.Pdfmarks.target = NullDestination then of_pdfdocencoding f "" else
|
||||
let textruns = of_pdfdocencoding fontpack mark.Pdfmarks.text in
|
||||
let labelruns =
|
||||
if mark.Pdfmarks.target = NullDestination then of_pdfdocencoding fontpack "" else
|
||||
let pde =
|
||||
let pnum = Pdfpage.pagenumber_of_target ~fastrefnums pdf mark.Pdfmarks.target in
|
||||
try Pdfpagelabels.pagelabeltext_of_pagenumber pnum labels with Not_found -> string_of_int pnum
|
||||
in
|
||||
of_pdfdocencoding f pde
|
||||
of_pdfdocencoding fontpack pde
|
||||
in
|
||||
let widths = Cpdftype.font_widths f fontsize in
|
||||
let textgap = width -. margin *. 2. -. indent -. Cpdftype.width_of_string widths label in
|
||||
let text = shorten_text widths (textgap -. fontsize *. 3.) text in
|
||||
let space = textgap -. Cpdftype.width_of_string widths text in
|
||||
(*let widths = Cpdftype.font_widths f fontsize in
|
||||
let textgap = width -. margin *. 2. -. indent -. Cpdftype.width_of_string widths label in*)
|
||||
(*let text = shorten_text widths (textgap -. fontsize *. 3.) text in*) (*FIXME add back in, but in unicode not codepoints! *)
|
||||
let space = 0. (*textgap -. Cpdftype.width_of_string widths text*) in
|
||||
[Cpdftype.BeginDest mark.Pdfmarks.target;
|
||||
Cpdftype.HGlue indent;
|
||||
Cpdftype.Text text;
|
||||
Cpdftype.HGlue space;
|
||||
Cpdftype.Text label;
|
||||
Cpdftype.EndDest;
|
||||
Cpdftype.HGlue indent]
|
||||
@ textruns @
|
||||
[Cpdftype.HGlue space]
|
||||
@ labelruns @
|
||||
[Cpdftype.EndDest;
|
||||
Cpdftype.NewLine])
|
||||
(Pdfmarks.read_bookmarks pdf)
|
||||
in
|
||||
|
|
@ -126,7 +126,7 @@ let typeset_table_of_contents ~font ~fontsize ~title ~bookmark pdf =
|
|||
flatten
|
||||
(map
|
||||
(fun l -> [Cpdftype.Text l; Cpdftype.NewLine])
|
||||
(split_toc_title (of_utf8 f title)))
|
||||
(split_toc_title (of_utf8 fontpack title)))
|
||||
@ [glue]
|
||||
in
|
||||
let lm, rm, tm, bm =
|
||||
|
|
@ -135,9 +135,11 @@ let typeset_table_of_contents ~font ~fontsize ~title ~bookmark pdf =
|
|||
| Some (cminx, cminy, cmaxx, cmaxy) ->
|
||||
(cminx +. margin, (pmaxx -. cmaxx) +. margin, cminy +. margin, (pmaxy -. cmaxy) +. margin)
|
||||
in
|
||||
Cpdftype.typeset lm rm tm bm firstpage_papersize pdf
|
||||
([Cpdftype.Font (font, bfs); Cpdftype.BeginDocument] @ title @
|
||||
[Cpdftype.Font (font, fs)] @ flatten lines)
|
||||
let firstfont =
|
||||
hd (keep (function Cpdftype.Font _ -> true | _ -> false) (title @ flatten lines)) (*FIXME when title ok *)
|
||||
in
|
||||
Cpdftype.typeset lm rm tm bm firstpage_papersize pdf
|
||||
([firstfont; Cpdftype.BeginDocument] @ title @ flatten lines)
|
||||
in
|
||||
let toc_pages =
|
||||
match firstpage_cropbox with
|
||||
|
|
|
|||
Loading…
Reference in New Issue