1 type link
= | LNone
| LUri
of string | LGoto
of (int * int);;
3 let log fmt
= Printf.kprintf prerr_endline fmt
;;
4 let dolog fmt
= Printf.kprintf prerr_endline fmt
;;
6 external init
: Unix.file_descr
-> unit = "ml_init";;
7 external draw
: int -> int -> int -> int -> string -> unit = "ml_draw";;
8 external seltext
: string -> (int * int * int * int) -> int -> unit =
10 external copysel
: string -> unit = "ml_copysel";;
11 external getlink
: string -> int -> int -> link
= "ml_getlink";;
12 external highlightlinks
: string -> int -> unit = "ml_highlightlinks";;
13 external getpagewh
: int -> float array
= "ml_getpagewh";;
15 type mstate
= Msel
of ((int * int) * (int * int)) | Mnone
;;
25 type textentry
= (char
* string * onhist
option * onkey
* ondone
)
26 and onkey
= string -> int -> te
27 and ondone
= string -> unit
28 and onhist
= histcmd
-> string
29 and histcmd
= HCnext
| HCprev
| HCfirst
| HClast
34 | TEswitch
of textentry
38 { store
= Array.create n v
45 let cblen b
= Array.length b
.store
;;
50 b
.wc
<- (b
.wc
+ 1) mod len;
51 b
.len <- min
(b
.len + 1) len;
54 let cbpeekw b
= b
.store
.(b
.wc
);;
57 if b
.len = 0 then b
.store
.(0) else
58 let rc = b
.rc + dir
in
59 let rc = if rc = -1 then b
.len - 1 else rc in
60 let rc = if rc = b
.len then 0 else rc in
81 { mutable scrollw
: int
82 ; mutable scrollh
: int
83 ; mutable icase
: bool
84 ; mutable preload
: bool
85 ; mutable pagebias
: int
86 ; mutable verbose
: bool
87 ; mutable scrollincr
: int
88 ; mutable maxhfit
: bool
89 ; mutable crophack
: bool
90 ; mutable autoscroll
: bool
91 ; mutable showall
: bool
92 ; mutable hlinks
: bool
96 type outline
= string * int * int * int;;
98 | Oarray
of outline array
99 | Olist
of outline list
100 | Onarrow
of outline array
* outline array
103 type rect
= (float * float * float * float * float * float * float * float);;
106 { mutable csock
: Unix.file_descr
107 ; mutable ssock
: Unix.file_descr
110 ; mutable rotate
: int
114 ; mutable layout
: layout list
115 ; pagemap
: ((int * int * int), string) Hashtbl.t
116 ; mutable pages
: (int * int * int) list
117 ; mutable pagecount
: int
118 ; pagecache
: string circbuf
119 ; mutable rendering
: bool
120 ; mutable mstate
: mstate
121 ; mutable searchpattern
: string
122 ; mutable rects
: (int * int * rect
) list
123 ; mutable rects1
: (int * int * rect
) list
124 ; mutable text
: string
125 ; mutable fullscreen
: (int * int) option
126 ; mutable textentry
: textentry
option
127 ; mutable outlines
: outlines
128 ; mutable outline
: (bool * int * int * outline array
* string) option
129 ; mutable bookmarks
: outline list
130 ; mutable path
: string
131 ; mutable invalidated
: int
132 ; mutable colorscale
: float
136 { pat
: string circbuf
137 ; pag
: string circbuf
138 ; nav
: float circbuf
168 ; pagemap
= Hashtbl.create
10
169 ; pagecache
= cbnew 10 ""
180 ; outlines
= Olist
[]
186 { nav
= cbnew 100 0.0
197 Printf.kprintf prerr_endline fmt
199 Printf.kprintf ignore fmt
203 let len = String.length s
in
205 let b = Buffer.create
n in
206 Buffer.add_char
b (Char.chr
((len lsr 24) land 0xff));
207 Buffer.add_char
b (Char.chr
((len lsr 16) land 0xff));
208 Buffer.add_char
b (Char.chr
((len lsr 8) land 0xff));
209 Buffer.add_char
b (Char.chr
((len lsr 0) land 0xff));
210 Buffer.add_string
b s
;
211 let s'
= Buffer.contents
b in
212 let n'
= Unix.write fd
s'
0 n in
213 if n'
!= n then failwith
"write failed";
218 let n = Unix.read fd
s 0 4 in
219 if n != 4 then failwith
"incomplete read(len)";
221 lor (Char.code
s.[0] lsl 24)
222 lor (Char.code
s.[1] lsl 16)
223 lor (Char.code
s.[2] lsl 8)
224 lor (Char.code
s.[3] lsl 0)
226 let s = String.create
len in
227 let n = Unix.read fd
s 0 len in
228 if n != len then failwith
"incomplete read(data)";
233 if y
= state.maxy
then 1.0
234 else float y
/. float state.maxy
238 let b = Buffer.create
10 in
239 Buffer.add_string
b s;
240 let rec combine = function
243 Buffer.add_char
b ' '
;
246 | `
b b -> if b then "1" else "0"
248 | `i i
-> string_of_int i
249 | `f f
-> string_of_float f
250 | `I f
-> string_of_int
(truncate f
)
252 Buffer.add_string
b s;
259 let cmd = Buffer.contents
(makecmd s l
) in
260 writecmd state.csock
cmd;
264 let rec f pn ph fh l
=
266 | (n, _
, h
) :: rest
->
267 let fh = fh + (n - pn
) * ph
in
271 let fh = fh + (ph
* (state.pagecount
- pn
)) in
274 let fh = f 0 0 0 state.pages
in
278 let getpagey pageno
=
279 let rec f pn ph y l
=
281 | (n, _
, h
) :: rest
->
284 y
+ (pageno
- pn
) * ph
286 let y = y + (n - pn
) * ph
in
290 y + (pageno
- pn
) * ph
296 let rec f pageno pdimno prev vy py dy l cacheleft accu
=
297 if pageno
= state.pagecount
|| cacheleft
= 0
300 let ((_
, w
, h
) as curr
), rest
, pdimno
=
302 | ((pageno'
, _
, _
) as curr
) :: rest
when pageno'
= pageno
->
303 curr
, rest
, pdimno
+ 1
307 let pageno'
= pageno + 1 in
341 let accu = e :: accu in
342 f pageno' pdimno curr
343 (vy
+ vh) (py + h
) (dy
+ vh + 2) rest
344 (pred cacheleft
) accu
346 f pageno' pdimno curr vy
(py + h
) dy rest cacheleft
accu
348 if state.invalidated
= 0
350 let accu = f 0 ~
-1 (0,0,0) y 0 0 state.pages
(cblen state.pagecache
) [] in
351 state.maxy
<- calcheight ();
358 let y = state.y + incr
in
360 let y = min
y (state.maxy
- (if conf.maxhfit
then state.h
else 0)) in
364 let getopaque pageno =
365 try Some
(Hashtbl.find
state.pagemap
(pageno + 1, state.w
- conf.scrollw
,
367 with Not_found
-> None
370 let cache pageno opaque
=
371 Hashtbl.replace
state.pagemap
(pageno + 1, state.w
- conf.scrollw
,
375 let validopaque opaque
= String.length opaque
> 0;;
378 match getopaque l
.pageno with
379 | None
when not
state.rendering
->
380 state.rendering
<- true;
382 wcmd "render" [`i
(l
.pageno + 1)
390 let loadlayout layout =
391 let rec f all
= function
393 begin match getopaque l
.pageno with
394 | None
-> render l
; f false ls
395 | Some opaque
-> f (all
&& validopaque opaque
) ls
399 f (layout <> []) layout;
404 let y = min
state.maxy
y in
405 let pages = layout y state.h
in
406 let ready = loadlayout pages in
407 state.ty
<- yratio y;
408 if conf.showall
then (
410 state.layout <- pages;
412 Glut.postRedisplay
();
416 state.layout <- pages;
418 Glut.postRedisplay
();
420 if conf.preload
then begin
421 let y = if state.y < state.h
then 0 else state.y - state.h
in
422 let pages = layout y (state.h
*3) in
423 List.iter
render pages;
428 cbput state.hists
.nav
(yratio state.y);
429 cbrfollowlen state.hists
.nav
;
433 let y = cbget state.hists
.nav ~
-1 in
434 truncate
(y *. float state.maxy
)
438 let y = getpagey n in
448 state.invalidated
<- state.invalidated
+ 1;
452 let c = c *. state.colorscale
in
457 let ratio = float w
/. float state.w
in
458 let fixbookmark (s, l
, pageno, pagey
) =
459 let pagey = truncate
(float pagey *. ratio) in
460 (s, l
, pageno, pagey)
462 state.bookmarks
<- List.map
fixbookmark state.bookmarks
;
465 GlDraw.viewport
0 0 w h
;
466 GlMat.mode `modelview
;
467 GlMat.load_identity
();
468 GlMat.mode `projection
;
469 GlMat.load_identity
();
470 GlMat.rotate ~x
:1.0 ~angle
:180.0 ();
471 GlMat.translate ~x
:~
-.1.0 ~
y:~
-.1.0 ();
472 GlMat.scale3
(2.0 /. float w
, 2.0 /. float state.h
, 1.0);
473 GlClear.color
(scalecolor 1.0);
474 GlClear.clear
[`color
];
477 wcmd "geometry" [`i
(state.w
- conf.scrollw
); `i h
];
481 GlDraw.color
(0.0, 0.0, 0.0);
483 (0.0, float (state.h
- 18))
484 (float (state.w
- conf.scrollw
- 1), float state.h
)
486 let font = Glut.BITMAP_8_BY_13
in
487 GlDraw.color
(1.0, 1.0, 1.0);
488 GlPix.raster_pos ~x
:0.0 ~
y:(float (state.h
- 5)) ();
489 Glut.bitmapCharacter ~
font ~
c:(Char.code
c);
490 String.iter
(fun c -> Glut.bitmapCharacter ~
font ~
c:(Char.code
c)) s;
494 let len = String.length
state.text
in
495 match state.textentry
with
497 if len > 0 then showtext ' '
state.text
499 | Some
(c, text
, _
, _
, _
) ->
503 text ^
" [" ^
state.text ^
"]"
513 state.text
<- Printf.sprintf
"%c%s" c s;
514 Glut.postRedisplay
();
527 state.outlines
<- Olist
[]
530 state.rects
<- state.rects1
;
531 Glut.postRedisplay
()
534 let n = Scanf.sscanf
cmd "C %d" (fun n -> n) in
535 state.pagecount
<- n;
536 state.invalidated
<- state.invalidated
- 1;
537 if state.invalidated
= 0
539 let rely = yratio state.y in
540 state.maxy
<- calcheight ();
541 gotoy (truncate
(float state.maxy
*. rely));
545 let s = Scanf.sscanf
cmd "t %n"
546 (fun n -> String.sub
cmd n (String.length
cmd - n))
548 Glut.setWindowTitle
s
551 let s = Scanf.sscanf
cmd "T %n"
552 (fun n -> String.sub
cmd n (String.length
cmd - n))
554 if state.textentry
= None
561 Glut.postRedisplay
();
567 let s = Scanf.sscanf
cmd "V %n"
568 (fun n -> String.sub
cmd n (String.length
cmd - n))
574 let pageno, c, x0
, y0
, x1
, y1
, x2
, y2
, x3
, y3
=
575 Scanf.sscanf
cmd "F %d %d %f %f %f %f %f %f %f %f"
576 (fun p
c x0 y0 x1 y1 x2 y2 x3 y3
->
577 (p
, c, x0
, y0
, x1
, y1
, x2
, y2
, x3
, y3
))
579 let y = (getpagey pageno) + truncate y0
in
582 state.rects1
<- [pageno, c, (x0
, y0
, x1
, y1
, x2
, y2
, x3
, y3
)]
585 let pageno, c, x0
, y0
, x1
, y1
, x2
, y2
, x3
, y3
=
586 Scanf.sscanf
cmd "R %d %d %f %f %f %f %f %f %f %f"
587 (fun p
c x0 y0 x1 y1 x2 y2 x3 y3
->
588 (p
, c, x0
, y0
, x1
, y1
, x2
, y2
, x3
, y3
))
591 (pageno, c, (x0
, y0
, x1
, y1
, x2
, y2
, x3
, y3
)) :: state.rects1
595 Scanf.sscanf
cmd "r %d %d %d %d %s"
596 (fun n w h r p
-> (n, w
, h
, r
, p
))
598 Hashtbl.replace
state.pagemap
(n, w
, r
) p
;
599 let opaque = cbpeekw state.pagecache
in
600 if validopaque opaque
604 (fun k v a
-> if v
= opaque then k else a
)
605 state.pagemap
(-1, -1, -1)
607 wcmd "free" [`
s opaque];
608 Hashtbl.remove
state.pagemap
k
610 cbput state.pagecache p
;
611 state.rendering
<- false;
613 then gotoy (truncate
(ceil
(state.ty
*. float state.maxy
)))
617 let (n, w
, h
) as pagelayout
=
618 Scanf.sscanf
cmd "l %d %d %d" (fun n w h
-> n, w
, h
)
620 state.pages <- pagelayout
:: state.pages
624 Scanf.sscanf
cmd "o %d %d %d %n" (fun l
n t pos
-> l
, n, t
, pos
)
626 let s = String.sub
cmd pos
(String.length
cmd - pos
) in
627 let outline = (s, l
, n, t
) in
629 match state.outlines with
630 | Olist
outlines -> Olist
(outline :: outlines)
631 | Oarray _
-> Olist
[outline]
632 | Onarrow _
-> Olist
[outline]
634 state.outlines <- outlines
637 log "unknown cmd `%S'" cmd
640 let now = Unix.gettimeofday
;;
643 let r, _
, _
= Unix.select
[state.csock
] [] [] 0.001 in
646 if conf.autoscroll
then begin
647 let y = state.y + conf.scrollincr
in
648 let y = if y >= state.maxy
then 0 else y in
654 let cmd = readcmd state.csock
in
659 let onhist cb
= function
660 | HCprev
-> cbget cb ~
-1
661 | HCnext
-> cbget cb
1
662 | HCfirst
-> cbget cb ~
-(cb
.rc)
663 | HClast
-> cbget cb
(cb
.len - 1 - cb
.rc)
666 let search pattern forward
=
667 if String.length pattern
> 0
670 match state.layout with
673 l
.pageno, (l
.pagey + if forward
then 0 else 0*l
.pagevh
)
676 let b = makecmd "search"
677 [`
b conf.icase
; `i
pn; `i
py; `i
(if forward
then 1 else 0)]
679 Buffer.add_char
b '
,'
;
680 Buffer.add_string
b pattern
;
681 Buffer.add_char
b '
\000'
;
684 writecmd state.csock
cmd;
687 let intentry text key
=
688 let c = Char.unsafe_chr key
in
691 let s = "x" in s.[0] <- c;
692 let text = text ^
s in
696 state.text <- Printf.sprintf
"invalid char (%d, `%c')" key
c;
701 let b = Buffer.create
(String.length
s + 1) in
702 Buffer.add_string
b s;
707 let textentry text key
=
708 let c = Char.unsafe_chr key
in
710 | _
when key
>= 32 && key
< 127 ->
711 let text = addchar text c in
715 log "unhandled key %d char `%c'" key
(Char.unsafe_chr key
);
720 state.rotate <- angle
;
722 wcmd "rotate" [`i angle
];
725 let optentry text key
=
726 let btos b = if b then "on" else "off" in
727 let c = Char.unsafe_chr key
in
731 try conf.scrollincr
<- int_of_string
s with exc
->
732 state.text <- Printf.sprintf
"bad integer `%s': %s"
733 s (Printexc.to_string exc
)
735 TEswitch
('#'
, "", None
, intentry, ondone)
740 Some
(int_of_string
s)
742 state.text <- Printf.sprintf
"bad integer `%s': %s"
743 s (Printexc.to_string exc
);
746 | Some angle
-> rotate angle
749 TEswitch
('^'
, "", None
, intentry, ondone)
752 conf.icase
<- not
conf.icase
;
753 TEdone
("case insensitive search " ^
(btos conf.icase
))
756 conf.preload
<- not
conf.preload
;
758 TEdone
("preload " ^
(btos conf.preload
))
761 conf.verbose
<- not
conf.verbose
;
762 TEdone
("verbose " ^
(btos conf.verbose
))
765 conf.maxhfit
<- not
conf.maxhfit
;
766 state.maxy
<- state.maxy
+ (if conf.maxhfit
then -state.h
else state.h
);
767 TEdone
("maxhfit " ^
(btos conf.maxhfit
))
770 conf.crophack
<- not
conf.crophack
;
771 TEdone
("crophack " ^
btos conf.crophack
)
774 conf.showall
<- not
conf.showall
;
775 TEdone
("showall " ^
btos conf.showall
)
778 state.text <- Printf.sprintf
"bad option %d `%c'" key
c;
782 let maxoutlinerows () = (state.h
- 31) / 16;;
784 let enterselector allowdel
outlines errmsg
=
785 if Array.length
outlines = 0
791 match state.layout with
793 | {pageno=pageno} :: rest
-> pageno
797 if n = Array.length
outlines
800 let (_
, _
, outlinepageno
, _
) = outlines.(n) in
801 if outlinepageno
>= pageno then n else loop (n+1)
806 Some
(allowdel
, active,
807 max
0 ((active - maxoutlinerows () / 2)), outlines, "");
808 Glut.postRedisplay
();
811 let enteroutlinemode () =
813 match state.outlines with
816 let a = Array.of_list
(List.rev l
) in
817 state.outlines <- Oarray
a;
819 | Onarrow
(a, b) -> a
821 enterselector false outlines "Document has no outline";
824 let enterbookmarkmode () =
825 let bookmarks = Array.of_list
state.bookmarks in
826 enterselector true bookmarks "Document has no bookmarks (yet)";
830 let quickbookmark ?title
() =
831 match state.layout with
837 let sec = Unix.gettimeofday
() in
838 let tm = Unix.localtime
sec in
839 Printf.sprintf
"Quick %d visited (%d/%d/%d %d:%d)"
843 (tm.Unix.tm_year
+ 1900)
846 | Some
title -> title
849 (title, 0, l
.pageno, l
.pagey) :: state.bookmarks
852 let viewkeyboard ~key ~x ~
y =
854 state.textentry <- te
;
857 Glut.postRedisplay
()
859 match state.textentry with
861 let c = Char.chr key
in
876 Glut.postRedisplay
()
879 let ondone isforw
s =
880 cbput state.hists
.pat
s;
881 cbrfollowlen state.hists
.pat
;
882 state.searchpattern
<- s;
885 enttext (Some
(c, "", Some
(onhist state.hists
.pat
),
886 textentry, ondone (c ='
/'
)))
891 try int_of_string
s with exc
->
892 state.text <- Printf.sprintf
"bad integer `%s': %s"
893 s (Printexc.to_string exc
);
899 state.text <- "page bias is now " ^ string_of_int
n;
902 enttext (Some
('
+'
, "", None
, intentry, ondone))
908 enttext (Some
('
-'
, "", None
, optentry, ondone))
913 try int_of_string
s with exc
->
914 state.text <- Printf.sprintf
"bad integer `%s': %s"
915 s (Printexc.to_string exc
);
921 cbput state.hists
.pag
(string_of_int
n);
922 cbrfollowlen state.hists
.pag
;
923 gotoy (getpagey (n + conf.pagebias
- 1))
926 let pageentry text key
=
927 match Char.unsafe_chr key
with
929 | _
-> intentry text key
931 let text = "x" in text.[0] <- c;
932 enttext (Some
('
:'
, text, Some
(onhist state.hists
.pag
),
936 conf.scrollw
<- if conf.scrollw
> 0 then 0 else 5;
937 reshape state.w
state.h
;
940 conf.hlinks
<- not
conf.hlinks
;
941 state.text <- "highlightlinks " ^
if conf.hlinks
then "on" else "off";
942 Glut.postRedisplay
()
945 conf.autoscroll
<- not
conf.autoscroll
948 begin match state.fullscreen
with
950 state.fullscreen
<- Some
(state.w
, state.h
);
953 state.fullscreen
<- None
;
954 Glut.reshapeWindow ~w ~h
961 search state.searchpattern
true
964 search state.searchpattern
false
967 begin match state.layout with
970 gotoy (state.y - l
.pagey);
974 begin match List.rev
state.layout with
977 gotoy (clamp (l
.pageh
- l
.pagey))
981 begin match state.layout with
984 gotoy (clamp (-l
.pageh
));
989 if fn
= -1 then l
.pageno, l
.pageno else fn
, l
.pageno
991 let fn, ln
= List.fold_left
f (-1, -1) state.layout in
993 let maxy = state.maxy - (if conf.maxhfit
then state.h
else 0) in
997 else (100. *. (float state.y /. float maxy)) in
1000 Printf.sprintf
"Page %d of %d %.2f%%"
1001 (fn+1) state.pagecount
percent
1004 "Pages %d-%d of %d %.2f%%"
1005 (fn+1) (ln
+1) state.pagecount
percent
1010 begin match state.layout with
1013 Glut.reshapeWindow
(l
.pagew
+ conf.scrollw
) l
.pageh
;
1014 Glut.postRedisplay
();
1018 enterbookmarkmode ()
1022 match state.layout with
1024 state.bookmarks <- (s, 0, l
.pageno, l
.pagey) :: state.bookmarks
1027 enttext (Some
('~'
, "", None
, textentry, ondone))
1031 showtext ' '
"Quick bookmark added";
1034 begin match state.layout with
1036 let a = getpagewh l
.pagedimno
in
1040 (truncate
(1.8 *. (a.(1) -. a.(0))),
1041 truncate
(1.2 *. (a.(3) -. a.(0))))
1043 (truncate
(a.(1) -. a.(0)),
1044 truncate
(a.(3) -. a.(0)))
1046 Glut.reshapeWindow
(w + conf.scrollw
) h
;
1047 Glut.postRedisplay
();
1053 rotate (state.rotate + (if c = '
>'
then 30 else -30));
1058 (min
(state.colorscale
+. (if c = '
]'
then 0.1 else -0.1)) 1.0);
1059 Glut.postRedisplay
()
1062 vlog "huh? %d %c" key
(Char.chr key
);
1065 | Some
(c, text, onhist, onkey
, ondone) when key
= 8 ->
1066 let len = String.length
text in
1069 state.textentry <- None
;
1070 Glut.postRedisplay
();
1073 let s = String.sub
text 0 (len - 1) in
1074 enttext (Some
(c, s, onhist, onkey
, ondone))
1077 | Some
(c, text, onhist, onkey
, ondone) ->
1078 begin match Char.unsafe_chr key
with
1081 state.textentry <- None
;
1082 Glut.postRedisplay
()
1085 state.textentry <- None
;
1086 Glut.postRedisplay
()
1089 begin match onkey
text key
with
1091 state.textentry <- None
;
1093 Glut.postRedisplay
()
1096 enttext (Some
(c, text, onhist, onkey
, ondone));
1099 state.textentry <- None
;
1100 Glut.postRedisplay
()
1103 state.textentry <- Some te
;
1104 Glut.postRedisplay
()
1109 let narrow outlines pattern
=
1110 let reopt = try Some
(Str.regexp_case_fold pattern
) with _
-> None
in
1114 let rec fold accu n =
1115 if n = -1 then accu else
1116 let (s, _
, _
, _
) as o
= outlines.(n) in
1118 if (try ignore
(Str.search_forward re
s 0); true
1119 with Not_found
-> false)
1125 let matched = fold [] (Array.length
outlines - 1) in
1126 if matched = [] then None
else Some
(Array.of_list
matched)
1129 let outlinekeyboard ~key ~x ~
y (allowdel
, active, first
, outlines, qsearch
) =
1130 let search active pattern incr
=
1133 if n = Array.length
outlines || n = -1 then None
else
1134 let (s, _
, _
, _
) = outlines.(n) in
1136 (try ignore
(Str.search_forward re
s 0); true
1137 with Not_found
-> false)
1139 else loop (n + incr
)
1144 let re = Str.regexp_case_fold pattern
in
1150 let firstof active = max
0 (active - maxoutlinerows () / 2) in
1153 if String.length qsearch
= 0
1156 state.outline <- None
;
1157 Glut.postRedisplay
();
1161 state.outline <- Some
(allowdel
, active, first
, outlines, "");
1162 Glut.postRedisplay
();
1166 let incr = if key
= 18 then -1 else 1 in
1168 match search (active + incr) qsearch
incr with
1170 state.text <- qsearch ^
" [not found]";
1173 state.text <- qsearch
;
1174 active, firstof active
1176 state.outline <- Some
(allowdel
, active, first
, outlines, qsearch
);
1177 Glut.postRedisplay
();
1180 let len = String.length qsearch
in
1187 state.outline <- Some
(allowdel
, active, first
, outlines, "");
1190 let qsearch = String.sub
qsearch 0 (len - 1) in
1192 match search active qsearch ~
-1 with
1194 state.text <- qsearch ^
" [not found]";
1197 state.text <- qsearch;
1198 active, firstof active
1200 state.outline <- Some
(allowdel
, active, first
, outlines, qsearch);
1202 Glut.postRedisplay
()
1205 if active < Array.length
outlines
1207 let (_
, _
, n, t
) = outlines.(active) in
1211 if allowdel
then state.bookmarks <- Array.to_list
outlines;
1212 state.outline <- None
;
1213 Glut.postRedisplay
();
1215 | _
when key
>= 32 && key
< 127 ->
1216 let pattern = addchar qsearch (Char.chr key
) in
1218 match search active pattern 1 with
1220 state.text <- pattern ^
" [not found]";
1223 state.text <- pattern;
1224 active, firstof active
1226 state.outline <- Some
(allowdel
, active, first
, outlines, pattern);
1227 Glut.postRedisplay
()
1229 | 14 when not allowdel
->
1230 let optoutlines = narrow outlines qsearch in
1231 begin match optoutlines with
1232 | None
-> state.text <- "can't narrow"
1234 state.outline <- Some
(allowdel
, 0, 0, outlines, qsearch);
1235 match state.outlines with
1237 | Oarray
a -> state.outlines <- Onarrow
(outlines, a)
1238 | Onarrow
(a, b) -> state.outlines <- Onarrow
(outlines, b)
1240 Glut.postRedisplay
()
1242 | 21 when not allowdel
->
1244 match state.outlines with
1247 let a = Array.of_list
(List.rev l
) in
1248 state.outlines <- Oarray
a;
1251 state.outlines <- Oarray
b;
1254 state.outline <- Some
(allowdel
, 0, 0, outline, qsearch);
1255 Glut.postRedisplay
()
1259 Some
(allowdel
, active, firstof active, outlines, qsearch);
1260 Glut.postRedisplay
()
1262 | 127 when allowdel
->
1263 let len = Array.length
outlines - 1 in
1266 state.outline <- None
;
1267 state.bookmarks <- [];
1270 let bookmarks = Array.init
len
1272 let i = if i >= active then i + 1 else i in
1283 Glut.postRedisplay
()
1285 | _
-> log "unknown key %d" key
1288 let keyboard ~key ~x ~
y =
1293 match state.outline with
1294 | None
-> viewkeyboard ~key ~x ~
y
1295 | Some
outline -> outlinekeyboard ~key ~x ~
y outline
1298 let special ~key ~x ~
y =
1299 match state.outline with
1301 begin match state.textentry with
1305 | Glut.KEY_F3
-> search state.searchpattern
true; state.y
1306 | Glut.KEY_UP
-> clamp (-conf.scrollincr
)
1307 | Glut.KEY_DOWN
-> clamp conf.scrollincr
1308 | Glut.KEY_PAGE_UP
-> clamp (-state.h
)
1309 | Glut.KEY_PAGE_DOWN
-> clamp state.h
1310 | Glut.KEY_HOME
-> addnav (); 0
1313 state.maxy - (if conf.maxhfit
then state.h
else 0)
1319 | Some
(c, s, Some
onhist, onkey
, ondone) ->
1322 | Glut.KEY_UP
-> onhist HCprev
1323 | Glut.KEY_DOWN
-> onhist HCnext
1324 | Glut.KEY_HOME
-> onhist HCfirst
1325 | Glut.KEY_END
-> onhist HClast
1328 state.textentry <- Some
(c, s, Some
onhist, onkey
, ondone);
1329 Glut.postRedisplay
()
1334 | Some
(allowdel
, active, first
, outlines, qsearch) ->
1335 let maxrows = maxoutlinerows () in
1337 let active = active + incr in
1338 let active = max
0 (min
active (Array.length
outlines - 1)) in
1342 let rows = active - first in
1343 if rows > maxrows then active - maxrows else first
1346 state.outline <- Some
(allowdel
, active, first, outlines, qsearch);
1347 Glut.postRedisplay
()
1350 | Glut.KEY_UP
-> navigate ~
-1
1351 | Glut.KEY_DOWN
-> navigate 1
1352 | Glut.KEY_PAGE_UP
-> navigate ~
-maxrows
1353 | Glut.KEY_PAGE_DOWN
-> navigate maxrows
1356 state.outline <- Some
(allowdel
, 0, 0, outlines, qsearch);
1357 Glut.postRedisplay
()
1360 let active = Array.length
outlines - 1 in
1361 let first = max
0 (active - maxrows) in
1362 state.outline <- Some
(allowdel
, active, first, outlines, qsearch);
1363 Glut.postRedisplay
()
1368 let drawplaceholder l
=
1369 GlDraw.color
(scalecolor 1.0);
1371 (0.0, float l
.pagedispy
)
1372 (float l
.pagew
, float (l
.pagedispy
+ l
.pagevh
))
1375 and y = float (l
.pagedispy
+ 13) in
1376 let font = Glut.BITMAP_8_BY_13
in
1377 GlDraw.color
(0.0, 0.0, 0.0);
1378 GlPix.raster_pos ~
x ~
y ();
1379 String.iter
(fun c -> Glut.bitmapCharacter ~
font ~
c:(Char.code
c))
1380 ("Loading " ^ string_of_int l
.pageno);
1383 let now () = Unix.gettimeofday
();;
1386 begin match getopaque l
.pageno with
1387 | Some
opaque when validopaque opaque ->
1388 if state.textentry = None
1389 then GlDraw.color
(scalecolor 1.0)
1390 else GlDraw.color
(scalecolor 0.4);
1392 draw l
.pagedispy l
.pagew l
.pagevh l
.pagey opaque;
1395 if conf.hlinks
then highlightlinks
opaque (l
.pagedispy
- l
.pagey);
1396 vlog "draw %f sec" d;
1401 GlDraw.color
(0.5, 0.5, 0.5);
1404 (float (state.w - conf.scrollw
), float (i + (l
.pagedispy
- i)))
1406 l
.pagedispy
+ l
.pagevh
;
1409 let scrollindicator () =
1410 let maxy = state.maxy - (if conf.maxhfit
then state.h
else 0) in
1411 GlDraw.color
(0.64 , 0.64, 0.64);
1413 (float (state.w - conf.scrollw
), 0.)
1414 (float state.w, float state.h
)
1416 GlDraw.color
(0.0, 0.0, 0.0);
1417 let sh = (float (maxy + state.h
) /. float state.h
) in
1418 let sh = float state.h
/. sh in
1419 let sh = max
sh (float conf.scrollh
) in
1422 if state.y = state.maxy
1424 else float state.y /. float maxy
1426 let position = (float state.h
-. sh) *. percent in
1429 if position +. sh > float state.h
1436 (float (state.w - conf.scrollw
), position)
1437 (float state.w, position +. sh)
1442 match state.mstate
with
1446 | Msel
((x0
, y0
), (x1
, y1
)) ->
1447 let rec loop = function
1449 if (y0
>= l
.pagedispy
&& y0
<= (l
.pagedispy
+ l
.pagevh
))
1450 || ((y1
>= l
.pagedispy
&& y1
<= (l
.pagedispy
+ l
.pagevh
)))
1452 match getopaque l
.pageno with
1453 | Some
opaque when validopaque opaque ->
1454 let oy = -l
.pagey + l
.pagedispy
in
1455 seltext
opaque (x0
, y0
, x1
, y1
) oy;
1466 GlDraw.color
(0.0, 0.0, 1.0) ~alpha
:0.5;
1467 GlFunc.blend_func `src_alpha `one_minus_src_alpha
;
1469 (fun (pageno, c, (x0
, y0
, x1
, y1
, x2
, y2
, x3
, y3
)) ->
1471 if l
.pageno = pageno
1473 let d = float (l
.pagedispy
- l
.pagey) in
1474 GlDraw.color
(0.0, 0.0, 1.0 /. float c) ~alpha
:0.5;
1475 GlDraw.begins `quads
;
1477 GlDraw.vertex2
(x0
, y0
+.d);
1478 GlDraw.vertex2
(x1
, y1
+.d);
1479 GlDraw.vertex2
(x2
, y2
+.d);
1480 GlDraw.vertex2
(x3
, y3
+.d);
1490 let showoutline = function
1492 | Some
(allowdel
, active, first, outlines, qsearch) ->
1494 GlFunc.blend_func `src_alpha `one_minus_src_alpha
;
1495 GlDraw.color
(0., 0., 0.) ~alpha
:0.85;
1496 GlDraw.rect
(0., 0.) (float state.w, float state.h
);
1499 GlDraw.color
(1., 1., 1.);
1500 let font = Glut.BITMAP_9_BY_15
in
1501 let draw_string x y s =
1502 GlPix.raster_pos ~
x ~
y ();
1503 String.iter
(fun c -> Glut.bitmapCharacter ~
font ~
c:(Char.code
c)) s
1506 if row
= Array.length
outlines || (row
- first) * 16 > state.h
1509 let (s, l
, _
, _
) = outlines.(row
) in
1510 let y = (row
- first) * 16 in
1515 GlDraw.polygon_mode `both `line
;
1516 GlFunc.blend_func `src_alpha `one_minus_src_alpha
;
1517 GlDraw.color
(1., 1., 1.) ~alpha
:0.9;
1518 GlDraw.rect
(0., float (y + 1))
1519 (float (state.w - conf.scrollw
- 1), float (y + 18));
1520 GlDraw.polygon_mode `both `fill
;
1522 GlDraw.color
(1., 1., 1.);
1524 draw_string (float x) (float (y + 16)) s;
1532 let lasty = List.fold_left
drawpage 0 (state.layout) in
1533 GlDraw.color
(scalecolor 0.5);
1536 (float (state.w - conf.scrollw
), float state.h
)
1541 showoutline state.outline;
1543 Glut.swapBuffers
();
1547 let rec f = function
1549 begin match getopaque l
.pageno with
1550 | Some
opaque when validopaque opaque ->
1551 let y = y - l
.pagedispy
in
1554 let y = l
.pagey + y in
1555 match getlink opaque x y with
1568 let mouse ~button ~bstate ~
x ~
y =
1570 | Glut.OTHER_BUTTON
n when n == 3 || n == 4 && bstate
= Glut.UP
->
1578 let incr = incr * 2 in
1579 let y = clamp incr in
1582 | Glut.LEFT_BUTTON
when state.outline = None
->
1583 let dest = if bstate
= Glut.DOWN
then getlink x y else LNone
in
1584 begin match dest with
1585 | LGoto
(pageno, top
) ->
1594 if bstate
= Glut.DOWN
1596 if state.rotate mod 360 = 0 then (
1597 Glut.setCursor
Glut.CURSOR_TEXT
;
1598 state.mstate
<- Msel
((x, y), (x, y));
1599 Glut.postRedisplay
()
1603 match state.mstate
with
1605 | Msel
((x0
, y0
), (x1
, y1
)) ->
1607 if (y0
>= l
.pagedispy
&& y0
<= (l
.pagedispy
+ l
.pagevh
))
1608 || ((y1
>= l
.pagedispy
&& y1
<= (l
.pagedispy
+ l
.pagevh
)))
1610 match getopaque l
.pageno with
1611 | Some
opaque when validopaque opaque ->
1615 List.iter
f state.layout;
1616 copysel
""; (* ugly *)
1617 Glut.setCursor
Glut.CURSOR_INHERIT
;
1618 state.mstate
<- Mnone
;
1625 let mouse ~button ~
state ~
x ~
y = mouse button
state x y;;
1628 if state.outline = None
1630 match state.mstate
with
1633 state.mstate
<- Msel
(a, (x, y));
1634 Glut.postRedisplay
()
1638 if state.outline = None
1640 match state.mstate
with
1642 if getlink x y != LNone
1643 then Glut.setCursor
Glut.CURSOR_INFO
1644 else Glut.setCursor
Glut.CURSOR_INHERIT
1653 if Sys.os_type
= "Win32"
1655 try Sys.getenv
"HOMEPATH" with Not_found
-> ""
1657 try Filename.concat
(Sys.getenv
"HOME") ".config" with Not_found
-> ""
1659 Filename.concat
home "llpp"
1663 let ic = open_in_bin
statepath in
1664 let hash = input_value
ic in
1670 prerr_endline
("Error loading state " ^
Printexc.to_string exn
)
1677 match state.fullscreen
with
1678 | None
-> state.w, state.h
1681 Hashtbl.replace
pstate state.path
(state.bookmarks, w, h
);
1682 let oc = open_out_bin
statepath in
1683 output_value
oc pstate
1687 prerr_endline
("Error saving state " ^
Printexc.to_string exn
)
1692 let statebookmarks, statew
, stateh
= Hashtbl.find
pstate state.path
in
1695 state.bookmarks <- statebookmarks;
1696 with Not_found
-> ()
1698 prerr_endline
("Error setting state " ^
Printexc.to_string exn
)
1701 Arg.parse
[] (fun s -> state.path
<- s) "options:";
1703 if String.length
state.path
= 0
1704 then (prerr_endline
"filename missing"; exit
1)
1709 let _ = Glut.init
Sys.argv
in
1710 let () = Glut.initDisplayMode ~depth
:false ~double_buffer
:true () in
1711 let () = Glut.initWindowSize
state.w state.h
in
1712 let _ = Glut.createWindow
("llpp " ^
Filename.basename
name) in
1715 if Sys.os_type
= "Unix"
1717 Unix.socketpair
Unix.PF_UNIX
Unix.SOCK_STREAM
0
1719 let addr = Unix.ADDR_INET
(Unix.inet_addr_loopback
, 1337) in
1720 let sock = Unix.socket
Unix.PF_INET
Unix.SOCK_STREAM
0 in
1721 Unix.setsockopt
sock Unix.SO_REUSEADDR
true;
1722 Unix.bind
sock addr;
1724 let csock = Unix.socket
Unix.PF_INET
Unix.SOCK_STREAM
0 in
1725 Unix.connect
csock addr;
1726 let ssock, _ = Unix.accept
sock in
1729 Unix.setsockopt
sock Unix.TCP_NODELAY
true;
1730 Unix.setsockopt_optint
sock Unix.SO_LINGER None
;
1734 at_exit
(fun () -> Unix.shutdown
ssock Unix.SHUTDOWN_ALL
);
1738 let () = Glut.displayFunc
display in
1739 let () = Glut.reshapeFunc
reshape in
1740 let () = Glut.keyboardFunc
keyboard in
1741 let () = Glut.specialFunc
special in
1742 let () = Glut.idleFunc
(Some
idle) in
1743 let () = Glut.mouseFunc
mouse in
1744 let () = Glut.motionFunc
motion in
1745 let () = Glut.passiveMotionFunc
pmotion in
1748 state.csock <- csock;
1749 state.ssock <- ssock;
1750 state.text <- "Opening " ^
name;
1751 writecmd csock ("open " ^
name ^
"\000");
1755 let rec handlelablglutbug () =
1758 with Glut.BadEnum
"key in special_of_int" ->
1759 showtext '
!'
" LablGlut bug: special key not recognized";
1760 handlelablglutbug ()
1762 handlelablglutbug ();