1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
(***********************************************************************)
(* *)
(* Active-DVI *)
(* *)
(* Projet Cristal, INRIA Rocquencourt *)
(* *)
(* Copyright 2002 Institut National de Recherche en Informatique et *)
(* en Automatique. All rights reserved. This file is distributed *)
(* under the terms of the GNU Lesser General Public License. *)
(* *)
(* Jun Furuse, Didier Rmy and Pierre Weis. *)
(* Contributions by Roberto Di Cosmo, Didier Le Botlan, *)
(* Xavier Leroy, and Alan Schmitt. *)
(* *)
(* Based on Mldvi by Alexandre Miquel. *)
(***********************************************************************)
(* $Id: thumbnails.ml,v 1.8 2004/09/15 16:37:55 weis Exp $ *)
(* Screen shot. *)
open Images;;
let save_gr_image fname x y nw nh =
let screen_w = Graphics.size_x () and screen_h = Graphics.size_y () in
let img = Graphic_image.get_image x y screen_w screen_h in
let cimg =
if nw = screen_w && nh = screen_h then img else
Rgb24.resize None img nw nh in
Images.save fname None [] (Rgb24 cimg)
;;
let thumbnails =
Options.flag false "-thumbnails"
" create thumbnails for your slides\
\n\t and write them into cachedir,\
\n\t (the default is to skip thumbnails construction).";;
let thumbnails_size_w = ref 24;;
let thumbnails_size_h = ref 32;;
let set_thumbnails_size s =
let g = Ageometry.parse s in
thumbnails_size_w := g.Ageometry.width;
thumbnails_size_h := g.Ageometry.height;;
Options.add
"-thumbnails-size"
(Arg.String set_thumbnails_size)
"<geom>: set the thumbnails geometry size to <geom>,\
\n\t (the default geometry is \"24x32\").";;
let save n =
if !thumbnails then
let jpegfname =
Filename.concat (Userfile.get_advi_cache_dir ())
(Printf.sprintf "shot%d.jpg" n) in
let bbfname =
Filename.concat (Userfile.get_advi_cache_dir ())
(Printf.sprintf "shot%d.bb" n) in
save_gr_image jpegfname 0 0 !thumbnails_size_w !thumbnails_size_h;
let bboc = open_out bbfname in
let s =
Printf.sprintf "%%%%BoundingBox: 0 0 %d %d\n"
!thumbnails_size_w !thumbnails_size_h in
output_string bboc s;
flush bboc;
close_out bboc;;
|
