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cpdf-source
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This commit is contained in:
John Whitington 2021-10-20 16:46:31 +01:00
parent e585de69f6
commit 55d18edf37
1 changed files with 11 additions and 3 deletions
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14
cpdf.ml
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@ -2828,16 +2828,24 @@ let impose_pages n x y columns rtl btt center margin spacing linewidth mediabox'
let minx, miny, maxx, maxy = Pdf.parse_rectangle clipbox in
[Pdfops.Op_re (minx, miny, maxx -. minx, maxy -. miny); Pdfops.Op_W; Pdfops.Op_n]
in
(* If fast, no q/Q protection and no parsing of operators. *)
let rectops =
if linewidth = 0. then [] else
let minx, miny, maxx, maxy = Pdf.parse_rectangle clipbox in
let l2 = linewidth /. 2. in
[Pdfops.Op_q; Pdfops.Op_G 0.; Pdfops.Op_w linewidth; Pdfops.Op_cm transform;
Pdfops.Op_re (minx +. l2, miny +. l2, maxx -. minx -. l2 -. l2, maxy -. miny -. l2 -. l2);
Pdfops.Op_s; Pdfops.Op_Q]
in
(* If fast, no mismatched q/Q protection and no parsing of operators. *)
if fast then
let before = Pdfops.stream_of_ops (Pdfops.Op_q::Pdfops.Op_cm transform::clipops) in
let after = Pdfops.stream_of_ops [Pdfops.Op_Q] in
let after = Pdfops.stream_of_ops ([Pdfops.Op_Q] @ rectops) in
[before] @ contents @ [after]
else
(* If slow, use protect from Pdfpage. *)
let ops = Pdfpage.protect pdf resources' contents @ Pdfops.parse_operators pdf resources' contents in
[Pdfops.stream_of_ops
([Pdfops.Op_q] @ [Pdfops.Op_cm transform] @ clipops @ ops @ [Pdfops.Op_Q])]
([Pdfops.Op_q] @ [Pdfops.Op_cm transform] @ clipops @ ops @ [Pdfops.Op_Q] @ rectops)]
in
flatten
(map2