4 | Ulinkgoto
of (int * int)
6 and facename
= string;;
8 let dolog fmt
= Printf.kprintf prerr_endline fmt
;;
10 type params
= angle
* proportional
* texcount
* sliceheight
19 and proportional
= bool
20 and interpagespace
= int
27 external init
: Unix.file_descr
-> params
-> unit = "ml_init";;
28 external draw
: (int * int * int * int * bool) -> string -> unit = "ml_draw";;
29 external seltext
: string -> (int * int * int * int) -> int -> unit =
31 external copysel
: string -> unit = "ml_copysel";;
32 external getpdimrect
: int -> float array
= "ml_getpdimrect";;
33 external whatsunder
: string -> int -> int -> under
= "ml_whatsunder";;
34 external zoomforh
: int -> int -> int -> float = "ml_zoom_for_height";;
38 | Msel
of (mpos
* mpos
)
44 type textentry
= (char
* string * onhist
* onkey
* ondone
)
45 and onkey
= string -> int -> te
46 and ondone
= string -> unit
47 and histcancel
= unit -> unit
48 and onhist
= ((histcmd
-> string) * histcancel
) option
49 and histcmd
= HCnext
| HCprev
| HCfirst
| HClast
54 | TEswitch
of textentry
66 { store
= Array.create n v
73 let cbcap b
= Array.length b
.store
;;
78 b
.wc
<- (b
.wc
+ 1) mod cap;
80 b
.len
<- min
(b
.len
+ 1) cap;
83 let cbempty b
= b
.len
= 0;;
85 let cbgetg b circular dir
=
89 let rc = b
.rc + dir
in
101 else max
0 (min
rc (b
.len
-1))
107 let cbget b
= cbgetg b
false;;
108 let cbgetc b
= cbgetg b
true;;
111 let rc = b
.wc
- b
.len
in
112 let rc = if rc < 0 then cbcap b
+ rc else rc in
116 let cbdecr b
= b
.len
<- b
.len
- 1;;
131 { mutable scrollw
: int
132 ; mutable scrollh
: int
133 ; mutable icase
: bool
134 ; mutable preload
: bool
135 ; mutable pagebias
: int
136 ; mutable verbose
: bool
137 ; mutable scrollincr
: int
138 ; mutable maxhfit
: bool
139 ; mutable crophack
: bool
140 ; mutable autoscroll
: bool
141 ; mutable showall
: bool
142 ; mutable hlinks
: bool
143 ; mutable underinfo
: bool
144 ; mutable interpagespace
: interpagespace
145 ; mutable zoom
: float
146 ; mutable presentation
: bool
147 ; mutable angle
: angle
150 ; mutable savebmarks
: bool
151 ; mutable proportional
: proportional
152 ; mutable memlimit
: int
153 ; mutable texcount
: texcount
154 ; mutable sliceheight
: sliceheight
155 ; mutable thumbw
: width
159 type outline
= string * int * int * float;;
161 | Oarray
of outline array
162 | Olist
of outline list
163 | Onarrow
of string * outline array
* outline array
166 type rect
= (float * float * float * float * float * float * float * float);;
168 type pagemapkey
= (pageno
* width
* angle
* proportional
* gen
);;
170 type anchor
= pageno
* top
;;
173 | Birdseye
of (conf
* leftx
* pageno
* pageno
)
174 | Outline
of (bool * int * int * outline array
* string)
175 | Textentry
of (textentry
* mode
)
179 let isbirdseye = function Birdseye _
-> true | _
-> false;;
180 let istextentry = function Textentry _
-> true | _
-> false;;
183 { mutable csock
: Unix.file_descr
184 ; mutable ssock
: Unix.file_descr
188 ; mutable anchor
: anchor
190 ; mutable layout
: layout list
191 ; pagemap
: (pagemapkey
, (opaque
* pixmapsize
)) Hashtbl.t
192 ; mutable pdims
: (pageno
* width
* height
* leftx
) list
193 ; mutable pagecount
: int
194 ; pagecache
: string circbuf
195 ; mutable rendering
: bool
196 ; mutable mstate
: mstate
197 ; mutable searchpattern
: string
198 ; mutable rects
: (pageno
* recttype
* rect
) list
199 ; mutable rects1
: (pageno
* recttype
* rect
) list
200 ; mutable text
: string
201 ; mutable fullscreen
: (width
* height
) option
202 ; mutable mode
: mode
203 ; mutable outlines
: outlines
204 ; mutable bookmarks
: outline list
205 ; mutable path
: string
206 ; mutable password
: string
207 ; mutable invalidated
: int
208 ; mutable colorscale
: float
209 ; mutable memused
: int
211 ; mutable throttle
: layout list
option
215 { pat
: string circbuf
216 ; pag
: string circbuf
217 ; nav
: anchor circbuf
237 ; presentation
= false
242 ; proportional
= true
243 ; memlimit
= 32*1024*1024
250 let conf = { defconf with angle
= defconf.angle
};;
261 ; pagemap
= Hashtbl.create
10
262 ; pagecache
= cbnew 100 ""
273 ; outlines
= Olist
[]
279 { nav
= cbnew 100 (0, 0.0)
293 Printf.kprintf prerr_endline fmt
295 Printf.kprintf ignore fmt
299 let len = String.length s
in
301 let b = Buffer.create
n in
302 Buffer.add_char
b (Char.chr
((len lsr 24) land 0xff));
303 Buffer.add_char
b (Char.chr
((len lsr 16) land 0xff));
304 Buffer.add_char
b (Char.chr
((len lsr 8) land 0xff));
305 Buffer.add_char
b (Char.chr
((len lsr 0) land 0xff));
306 Buffer.add_string
b s
;
307 let s'
= Buffer.contents
b in
308 let n'
= Unix.write fd
s'
0 n in
309 if n'
!= n then failwith
"write failed";
314 let n = Unix.read fd
s 0 4 in
315 if n != 4 then failwith
"incomplete read(len)";
317 lor (Char.code
s.[0] lsl 24)
318 lor (Char.code
s.[1] lsl 16)
319 lor (Char.code
s.[2] lsl 8)
320 lor (Char.code
s.[3] lsl 0)
322 let s = String.create
len in
323 let n = Unix.read fd
s 0 len in
324 if n != len then failwith
"incomplete read(data)";
329 let b = Buffer.create
10 in
330 Buffer.add_string
b s;
331 let rec combine = function
334 Buffer.add_char
b ' '
;
337 | `
b b -> if b then "1" else "0"
339 | `i i
-> string_of_int i
340 | `f f
-> string_of_float f
341 | `I f
-> string_of_int
(truncate f
)
343 Buffer.add_string
b s;
350 let cmd = Buffer.contents
(makecmd s l
) in
351 writecmd state.csock
cmd;
357 let d = conf.winh
- h
in
364 let rec f pn ph pi fh l
=
366 | (n, _
, h
, _
) :: rest
->
367 let ips = calcips h
in
372 if isbirdseye state.mode
&& pn
= 0
377 let fh = fh + ((n - pn
) * (ph
+ pi
)) in
382 if conf.presentation
|| (isbirdseye state.mode
&& pn
= 0)
386 let fh = fh + ((state.pagecount
- pn
) * (ph
+ pi
)) + inc in
389 let fh = f 0 0 0 0 state.pdims
in
393 let getpageyh pageno
=
394 let rec f pn ph pi y l
=
396 | (n, _
, h
, _
) :: rest
->
397 let ips = calcips h
in
400 let h = if n = pageno
then h else ph
in
401 if conf.presentation
&& n = pageno
403 y
+ (pageno
- pn
) * (ph
+ pi
) + pi
, h
405 y
+ (pageno
- pn
) * (ph
+ pi
), h
407 let y = y + (if conf.presentation
then pi
else 0) in
408 let y = y + (n - pn
) * (ph
+ pi
) in
412 y + (pageno
- pn
) * (ph
+ pi
), ph
414 f 0 0 0 0 state.pdims
417 let getpagey pageno
= fst
(getpageyh pageno
);;
420 let rec f ~pageno ~pdimno ~prev ~py ~dy ~pdims ~cacheleft ~accu
=
421 let ((w
, h, ips, x
) as curr
), rest
, pdimno
, yinc
=
423 | (pageno'
, w
, h, x
) :: rest
when pageno'
= pageno
->
424 let ips = calcips h in
426 if conf.presentation
|| (isbirdseye state.mode
&& pageno
= 0)
430 (w
, h, ips, x
), rest
, pdimno
+ 1, yinc
432 prev
, pdims
, pdimno
, 0
434 let dy = dy + yinc in
435 let py = py + yinc in
436 if pageno
= state.pagecount
|| cacheleft
= 0 || dy >= sh
441 if py + h <= vy - yinc
443 let py = py + h + ips in
444 let dy = max
0 (py - y) in
454 let pagey = vy - py in
455 let pagevh = h - pagey in
456 let pagevh = min
(sh
- dy) pagevh in
457 let off = if yinc > 0 then py - vy else 0 in
458 let py = py + h + ips in
464 ; pagedispy
= dy + off
465 ; pagey = pagey + off
466 ; pagevh = pagevh - off
470 let accu = e :: accu in
477 ~cacheleft
:(cacheleft
-1)
480 if state.invalidated
= 0
490 ~cacheleft
:(cbcap state.pagecache
)
500 let y = state.y + incr
in
502 let y = min
y (state.maxy
- (if conf.maxhfit
then conf.winh
else 0)) in
506 let getopaque pageno
=
507 try Some
(Hashtbl.find
state.pagemap
508 (pageno
, state.w
, conf.angle
, conf.proportional
, state.gen
))
509 with Not_found
-> None
512 let cache pageno opaque
=
513 Hashtbl.replace
state.pagemap
514 (pageno
, state.w
, conf.angle
, conf.proportional
, state.gen
) opaque
517 let validopaque opaque
= String.length opaque
> 0;;
520 match getopaque l
.pageno
with
521 | None
when not
state.rendering
->
522 state.rendering
<- true;
523 cache l
.pageno
("", -1);
524 wcmd "render" [`i
(l
.pageno
+ 1)
532 let loadlayout layout =
533 let rec f all
= function
535 begin match getopaque l
.pageno
with
536 | None
-> render l
; f false ls
537 | Some
(opaque
, _
) -> f (all
&& validopaque opaque
) ls
541 f (layout <> []) layout;
544 let findpageforopaque opaque
=
546 (fun k
(v
, s) a
-> if v
= opaque
then Some
(k
, s) else a
)
550 let pagevisible layout n = List.exists
(fun l
-> l
.pageno
= n) layout;;
556 let memleft = conf.memlimit
- state.memused
in
559 let opaque = cbpeek state.pagecache
in
560 match findpageforopaque opaque with
561 | Some
((n, _
, _
, _
, _
), size
) ->
562 memleft + size
>= 0 && not
(pagevisible state.layout n)
569 let presentation = conf.presentation in
570 let interpagespace = conf.interpagespace in
571 let maxy = state.maxy in
572 conf.presentation <- false;
573 conf.interpagespace <- 0;
574 state.maxy <- calcheight ();
576 match state.layout with
578 | l
:: _
-> getpagey l
.pageno
580 let y = if y < conf.winh
then 0 else y - conf.winh
in
581 let pages = layout y (conf.winh
*3) in
582 List.iter
render pages;
583 conf.presentation <- presentation;
584 conf.interpagespace <- interpagespace;
590 let y = min
state.maxy y in
591 let pages = layout y conf.winh
in
592 let ready = loadlayout pages in
598 state.layout <- pages;
599 state.throttle
<- None
;
600 Glut.postRedisplay
();
603 state.throttle
<- Some
pages;
608 state.layout <- pages;
609 state.throttle
<- None
;
610 Glut.postRedisplay
();
612 begin match state.mode
with
613 | Birdseye
(conf, leftx
, pageno
, hooverpageno
) ->
614 if not
(pagevisible pages pageno
)
616 match state.layout with
619 state.mode
<- Birdseye
(conf, leftx
, l
.pageno
, hooverpageno
)
626 let gotoy_and_clear_text y =
628 if not
conf.verbose
then state.text
<- "";
631 let emptyanchor = (0, 0.0);;
634 match state.layout with
636 | l
:: _
-> (l
.pageno
, float l
.pagey /. float l
.pageh
)
639 let getanchory (n, top
) =
640 let y, h = getpageyh n in
641 y + (truncate
(top
*. float h));
644 let gotoanchor anchor
=
645 gotoy (getanchory anchor
);
649 cbput state.hists
.nav
(getanchor ());
653 let anchor = cbgetc state.hists
.nav ~
-1 in
657 let gotopagenonav n top
=
658 let y, h = getpageyh n in
659 gotoy_and_clear_text (y + (truncate
(top
*. float h)));
662 let gotopage1nonav n top
=
663 let y, h = getpageyh n in
665 gotoy_and_clear_text (y + top
);
669 let y, h = getpageyh n in
671 gotoy_and_clear_text (y + (truncate
(top
*. float h)));
674 let gotopage1 n top
=
675 let y = getpagey n in
677 gotoy_and_clear_text (y + top
);
685 state.invalidated
<- state.invalidated
+ 1;
689 let c = c *. state.colorscale
in
694 state.maxy <- calcheight ();
695 match state.mode
with
696 | Birdseye
(_
, _
, pageno
, _
) ->
697 let y, h = getpageyh pageno
in
698 let top = (conf.winh
- h) / 2 in
699 gotoy (max
0 (y - top))
700 | _
-> gotoanchor state.anchor
704 GlMat.mode `projection
;
705 GlMat.load_identity
();
706 GlMat.rotate ~x
:1.0 ~angle
:180.0 ();
707 GlMat.translate ~x
:~
-.1.0 ~
y:~
-.1.0 ();
708 GlMat.scale3
(2.0 /. float state.w
, 2.0 /. float conf.winh
, 1.0);
711 GlMat.translate ~x
:(float state.x
) ();
716 GlMat.mode `projection
;
717 GlMat.load_identity
();
718 GlMat.rotate ~x
:1.0 ~angle
:180.0 ();
719 GlMat.translate ~x
:~
-.1.0 ~
y:~
-.1.0 ();
720 GlMat.scale3
(2.0 /. float conf.winw
, 2.0 /. float conf.winh
, 1.0);
724 if state.invalidated
= 0
725 then state.anchor <- getanchor ();
728 let w = truncate
(float w *. conf.zoom
) - conf.scrollw
in
732 GlMat.mode `modelview
;
733 GlMat.load_identity
();
734 GlClear.color
(scalecolor 1.0);
735 GlClear.clear
[`color
];
738 wcmd "geometry" [`i
w; `i
h];
742 GlDraw.color
(0.0, 0.0, 0.0);
744 (0.0, float (conf.winh
- 18))
745 (float (conf.winw
- conf.scrollw
- 1), float conf.winh
)
747 let font = Glut.BITMAP_8_BY_13
in
748 GlDraw.color
(1.0, 1.0, 1.0);
749 GlPix.raster_pos ~x
:0.0 ~
y:(float (conf.winh
- 5)) ();
750 Glut.bitmapCharacter ~
font ~
c:(Char.code
c);
751 String.iter
(fun c -> Glut.bitmapCharacter ~
font ~
c:(Char.code
c)) s;
755 let len = String.length
state.text
in
756 match state.mode
with
757 | Textentry
((c, text
, _
, _
, _
), _
) ->
761 text ^
" [" ^
state.text ^
"]"
768 if len > 0 then showtext ' '
state.text
772 state.text
<- Printf.sprintf
"%c%s" c s;
773 Glut.postRedisplay
();
782 state.rects
<- state.rects1
;
783 Glut.postRedisplay
()
786 let n = Scanf.sscanf
cmd "C %u" (fun n -> n) in
787 state.pagecount
<- n;
788 state.invalidated
<- state.invalidated
- 1;
789 if state.invalidated
= 0
793 let s = Scanf.sscanf
cmd "t %n"
794 (fun n -> String.sub
cmd n (String.length
cmd - n))
796 Glut.setWindowTitle
s
799 let s = Scanf.sscanf
cmd "T %n"
800 (fun n -> String.sub
cmd n (String.length
cmd - n))
802 if istextentry state.mode
809 Glut.postRedisplay
();
815 let s = Scanf.sscanf
cmd "V %n"
816 (fun n -> String.sub
cmd n (String.length
cmd - n))
822 let pageno, c, x0
, y0
, x1
, y1
, x2
, y2
, x3
, y3
=
823 Scanf.sscanf
cmd "F %u %d %f %f %f %f %f %f %f %f"
824 (fun p
c x0 y0 x1 y1 x2 y2 x3 y3
->
825 (p
, c, x0
, y0
, x1
, y1
, x2
, y2
, x3
, y3
))
827 let y = (getpagey pageno) + truncate y0
in
830 state.rects1
<- [pageno, c, (x0
, y0
, x1
, y1
, x2
, y2
, x3
, y3
)]
833 let pageno, c, x0
, y0
, x1
, y1
, x2
, y2
, x3
, y3
=
834 Scanf.sscanf
cmd "R %u %d %f %f %f %f %f %f %f %f"
835 (fun p
c x0 y0 x1 y1 x2 y2 x3 y3
->
836 (p
, c, x0
, y0
, x1
, y1
, x2
, y2
, x3
, y3
))
839 (pageno, c, (x0
, y0
, x1
, y1
, x2
, y2
, x3
, y3
)) :: state.rects1
842 let n, w, h, r
, l
, s, p
=
843 Scanf.sscanf
cmd "r %u %u %u %u %d %u %s"
844 (fun n w h r l
s p
->
845 (n-1, w, h, r
, l
!= 0, s, p
))
848 Hashtbl.replace
state.pagemap
(n, w, r
, l
, state.gen
) (p
, s);
849 state.memused
<- state.memused
+ s;
852 match state.throttle
with
853 | None
-> state.layout
854 | Some
layout -> layout
858 if (state.memused
<= conf.memlimit
) || cbempty state.pagecache
861 let evictedopaque = cbpeek state.pagecache
in
862 match findpageforopaque evictedopaque with
863 | None
-> failwith
"bug in gc"
864 | Some
((evictedn
, _
, _
, _
, gen
) as k
, evictedsize
) ->
865 if state.gen
!= gen
|| not
(pagevisible layout evictedn
)
867 wcmd "free" [`
s evictedopaque];
868 state.memused
<- state.memused
- evictedsize
;
869 Hashtbl.remove
state.pagemap k
;
870 cbdecr state.pagecache
;
877 cbput state.pagecache p
;
878 state.rendering
<- false;
880 begin match state.throttle
with
882 if pagevisible state.layout n
885 let allvisible = loadlayout state.layout in
886 if allvisible then preload ();
893 let y = getpagey l
.pageno + l
.pagey in
898 let (n, w, h, x
) as pdim
=
899 Scanf.sscanf
cmd "l %u %u %u %u" (fun n w h x
-> n, w, h, x
)
901 state.pdims
<- pdim
:: state.pdims
904 let (l
, n, t
, h, pos
) =
905 Scanf.sscanf
cmd "o %u %u %d %u %n" (fun l
n t
h pos
-> l
, n, t
, h, pos
)
907 let s = String.sub
cmd pos
(String.length
cmd - pos
) in
909 let l = String.length
s in
910 let b = Buffer.create
(String.length
s) in
917 | '
\xa0'
when pc2 -> Buffer.add_char
b ' '
; false
920 let c = if Char.code
c land 0x80 = 0 then c else '?'
in
929 let outline = (s, l, n, float t
/. float h) in
931 match state.outlines with
932 | Olist
outlines -> Olist
(outline :: outlines)
933 | Oarray _
-> Olist
[outline]
934 | Onarrow _
-> Olist
[outline]
936 state.outlines <- outlines
939 dolog "unknown cmd `%S'" cmd
942 let now = Unix.gettimeofday
;;
946 let r, _
, _
= Unix.select
[state.csock
] [] [] delay
in
949 if conf.autoscroll
&& conf.scrollincr
!= 0
951 let y = state.y + conf.scrollincr
in
952 let y = if y >= state.maxy then 0 else y in
958 let cmd = readcmd state.csock
in
967 let action = function
968 | HCprev
-> cbget cb ~
-1
969 | HCnext
-> cbget cb
1
970 | HCfirst
-> cbget cb ~
-(cb
.rc)
971 | HClast
-> cbget cb
(cb
.len - 1 - cb
.rc)
972 and cancel
() = cb
.rc <- rc
976 let search pattern forward
=
977 if String.length pattern
> 0
980 match state.layout with
983 l.pageno, (l.pagey + if forward
then 0 else 0*l.pagevh)
986 let b = makecmd "search"
987 [`
b conf.icase
; `i
pn; `i
py; `i
(if forward
then 1 else 0)]
989 Buffer.add_char
b '
,'
;
990 Buffer.add_string
b pattern
;
991 Buffer.add_char
b '
\000'
;
994 writecmd state.csock
cmd;
997 let intentry text key
=
998 let c = Char.unsafe_chr key
in
1001 let s = "x" in s.[0] <- c;
1002 let text = text ^
s in
1006 state.text <- Printf.sprintf
"invalid char (%d, `%c')" key
c;
1011 let b = Buffer.create
(String.length
s + 1) in
1012 Buffer.add_string
b s;
1013 Buffer.add_char
b c;
1017 let textentry text key
=
1018 let c = Char.unsafe_chr key
in
1020 | _
when key
>= 32 && key
< 127 ->
1021 let text = addchar text c in
1025 dolog "unhandled key %d char `%c'" key
(Char.unsafe_chr key
);
1029 let reinit angle proportional
=
1030 conf.angle
<- angle
;
1031 conf.proportional
<- proportional
;
1033 wcmd "reinit" [`i angle
; `
b proportional
];
1036 let optentry text key
=
1037 let btos b = if b then "on" else "off" in
1038 let c = Char.unsafe_chr key
in
1042 try conf.scrollincr
<- int_of_string
s with exc
->
1043 state.text <- Printf.sprintf
"bad integer `%s': %s"
1044 s (Printexc.to_string exc
)
1046 TEswitch
('#'
, "", None
, intentry, ondone)
1051 Some
(int_of_string
s)
1053 state.text <- Printf.sprintf
"bad integer `%s': %s"
1054 s (Printexc.to_string exc
);
1057 | Some angle
-> reinit angle
conf.proportional
1060 TEswitch
('^'
, "", None
, intentry, ondone)
1063 conf.icase
<- not
conf.icase
;
1064 TEdone
("case insensitive search " ^
(btos conf.icase
))
1067 conf.preload <- not
conf.preload;
1069 TEdone
("preload " ^
(btos conf.preload))
1072 conf.verbose
<- not
conf.verbose
;
1073 TEdone
("verbose " ^
(btos conf.verbose
))
1076 conf.maxhfit
<- not
conf.maxhfit
;
1077 state.maxy <- state.maxy + (if conf.maxhfit
then -conf.winh
else conf.winh
);
1078 TEdone
("maxhfit " ^
(btos conf.maxhfit
))
1081 conf.crophack
<- not
conf.crophack
;
1082 TEdone
("crophack " ^
btos conf.crophack
)
1085 conf.showall
<- not
conf.showall
;
1086 TEdone
("showall " ^
btos conf.showall
)
1089 conf.underinfo
<- not
conf.underinfo
;
1090 TEdone
("underinfo " ^
btos conf.underinfo
)
1093 conf.savebmarks
<- not
conf.savebmarks
;
1094 TEdone
("persistent bookmarks " ^
btos conf.savebmarks
)
1100 match state.layout with
1105 conf.interpagespace <- int_of_string
s;
1106 state.maxy <- calcheight ();
1107 let y = getpagey pageno in
1110 state.text <- Printf.sprintf
"bad integer `%s': %s"
1111 s (Printexc.to_string exc
)
1113 TEswitch
('
%'
, "", None
, intentry, ondone)
1116 reinit conf.angle
(not
conf.proportional
);
1117 TEdone
("proprortional display " ^
btos conf.proportional
)
1120 state.text <- Printf.sprintf
"bad option %d `%c'" key
c;
1124 let maxoutlinerows () = (conf.winh
- 31) / 16;;
1126 let enterselector allowdel
outlines errmsg msg
=
1127 if Array.length
outlines = 0
1129 showtext ' ' errmsg
;
1133 Glut.setCursor
Glut.CURSOR_INHERIT
;
1135 match state.layout with
1137 | {pageno=pageno} :: rest
-> pageno
1141 if n = Array.length
outlines
1144 let (_
, _
, outlinepageno
, _
) = outlines.(n) in
1145 if outlinepageno
>= pageno then n else loop (n+1)
1149 state.mode
<- Outline
1150 (allowdel
, active, max
0 (active - maxoutlinerows () / 2), outlines, "");
1151 Glut.postRedisplay
();
1155 let enteroutlinemode () =
1157 match state.outlines with
1160 let a = Array.of_list
(List.rev
l) in
1161 state.outlines <- Oarray
a;
1163 | Onarrow
(pat
, a, b) ->
1164 a, "Outline was narrowed to `" ^ pat ^
"' (Ctrl-u to restore)"
1166 enterselector false outlines "Document has no outline" msg
;
1169 let enterbookmarkmode () =
1170 let bookmarks = Array.of_list
state.bookmarks in
1171 enterselector true bookmarks "Document has no bookmarks (yet)" "";
1174 let quickbookmark ?title
() =
1175 match state.layout with
1181 let sec = Unix.gettimeofday
() in
1182 let tm = Unix.localtime
sec in
1183 Printf.sprintf
"Quick (page %d) (bookmarked at %d/%d/%d %d:%d)"
1187 (tm.Unix.tm_year
+ 1900)
1190 | Some
title -> title
1193 (title, 0, l.pageno, float l.pagey /. float l.pageh
) :: state.bookmarks
1197 state.fullscreen
<- None
;
1198 Glut.reshapeWindow
w h;
1201 let writeopen path password
=
1202 writecmd state.csock
("open " ^ path ^
"\000" ^
state.password ^
"\000");
1205 let opendoc path password
=
1208 state.password
<- password
;
1209 state.gen
<- state.gen
+ 1;
1211 writeopen path password
;
1212 Glut.setWindowTitle
("llpp " ^
Filename.basename path
);
1213 wcmd "geometry" [`i
state.w; `i
conf.winh
];
1217 let zoom = float conf.thumbw
/. float conf.winw
in
1218 let (birdseyepageno
, _
) as anchor = getanchor () in
1220 Birdseye
({ conf with zoom = conf.zoom }, state.x
, birdseyepageno
, -1);
1222 conf.presentation <- false;
1223 conf.interpagespace <- 10;
1224 conf.hlinks
<- false;
1226 state.mstate
<- Mnone
;
1227 conf.showall
<- false;
1228 Glut.setCursor
Glut.CURSOR_INHERIT
;
1231 state.text <- Printf.sprintf
"birds eye mode on (zoom %3.1f%%)"
1238 let birdseyeoff (c, leftx
, pageno, _
) =
1240 conf.zoom <- c.zoom;
1241 conf.presentation <- c.presentation;
1242 conf.interpagespace <- c.interpagespace;
1243 conf.showall
<- c.showall
;
1244 conf.hlinks
<- c.hlinks
;
1248 state.text <- Printf.sprintf
"birds eye mode off (zoom %3.1f%%)"
1253 let togglebirdseye () =
1254 match state.mode
with
1255 | Birdseye vals
-> birdseyeoff vals
1256 | View
| Outline _
-> birdseyeon ()
1260 let viewkeyboard ~key ~x ~
y =
1262 state.mode
<- Textentry
(te
, state.mode
);
1265 Glut.postRedisplay
()
1267 let c = Char.chr key
in
1273 let y = getnav () in
1274 gotoy_and_clear_text y
1282 Glut.postRedisplay
()
1285 let ondone isforw
s =
1286 cbput state.hists
.pat
s;
1287 state.searchpattern
<- s;
1290 enttext (c, "", Some
(onhist state.hists
.pat
),
1291 textentry, ondone (c ='
/'
))
1293 | '
+'
when Glut.getModifiers
() land Glut.active_ctrl
!= 0 ->
1294 let incr = if conf.zoom +. 0.01 > 0.1 then 0.1 else 0.01 in
1295 conf.zoom <- min
2.2 (conf.zoom +. incr);
1296 state.text <- Printf.sprintf
"zoom is %3.1f%%" (100.0*.conf.zoom);
1297 reshape conf.winw
conf.winh
1302 try int_of_string
s with exc
->
1303 state.text <- Printf.sprintf
"bad integer `%s': %s"
1304 s (Printexc.to_string exc
);
1310 state.text <- "page bias is now " ^ string_of_int
n;
1313 enttext ('
+'
, "", None
, intentry, ondone)
1315 | '
-'
when Glut.getModifiers
() land Glut.active_ctrl
!= 0 ->
1316 let decr = if conf.zoom -. 0.1 < 0.1 then 0.01 else 0.1 in
1317 conf.zoom <- max
0.01 (conf.zoom -. decr);
1318 if conf.zoom <= 1.0 then state.x
<- 0;
1319 state.text <- Printf.sprintf
"zoom is %3.1f%%" (100.0*.conf.zoom);
1320 reshape conf.winw
conf.winh
;
1326 enttext ('
-'
, "", None
, optentry, ondone)
1328 | '
0'
when (Glut.getModifiers
() land Glut.active_ctrl
!= 0) ->
1331 state.text <- "zoom is 100%";
1332 reshape conf.winw
conf.winh
1334 | '
1'
when (Glut.getModifiers
() land Glut.active_ctrl
!= 0) ->
1335 let zoom = zoomforh
conf.winw
conf.winh
conf.scrollw
in
1340 state.text <- Printf.sprintf
"zoom is %3.1f%%" (100.0*.conf.zoom);
1341 reshape conf.winw
conf.winh
;
1344 | '
9'
when (Glut.getModifiers
() land Glut.active_ctrl
!= 0) ->
1346 reshape conf.winw
conf.winh
;
1351 try int_of_string
s with exc
->
1352 state.text <- Printf.sprintf
"bad integer `%s': %s"
1353 s (Printexc.to_string exc
);
1359 cbput state.hists
.pag
(string_of_int
n);
1360 gotoy_and_clear_text (getpagey (n + conf.pagebias
- 1))
1363 let pageentry text key
=
1364 match Char.unsafe_chr key
with
1365 | 'g'
-> TEdone
text
1366 | _
-> intentry text key
1368 let text = "x" in text.[0] <- c;
1369 enttext ('
:'
, text, Some
(onhist state.hists
.pag
), pageentry, ondone)
1372 conf.scrollw
<- if conf.scrollw
> 0 then 0 else defconf.scrollw
;
1373 reshape conf.winw
conf.winh
;
1376 conf.hlinks
<- not
conf.hlinks
;
1377 state.text <- "highlightlinks " ^
if conf.hlinks
then "on" else "off";
1378 Glut.postRedisplay
()
1381 conf.autoscroll
<- not
conf.autoscroll
1384 conf.presentation <- not
conf.presentation;
1385 showtext ' '
("presentation mode " ^
1386 if conf.presentation then "on" else "off");
1390 begin match state.fullscreen
with
1392 state.fullscreen
<- Some
(conf.winw
, conf.winh
);
1395 state.fullscreen
<- None
;
1400 gotoy_and_clear_text 0
1403 search state.searchpattern
true
1406 search state.searchpattern
false
1409 begin match state.layout with
1412 gotoy_and_clear_text (getpagey l.pageno)
1416 begin match List.rev
state.layout with
1419 let pageno = min
(l.pageno+1) (state.pagecount
-1) in
1420 gotoy_and_clear_text (getpagey pageno)
1424 begin match state.layout with
1427 let pageno = max
0 (l.pageno-1) in
1428 gotoy_and_clear_text (getpagey pageno)
1433 if fn
= -1 then l.pageno, l.pageno else fn
, l.pageno
1435 let fn, ln
= List.fold_left
f (-1, -1) state.layout in
1437 let maxy = state.maxy - (if conf.maxhfit
then conf.winh
else 0) in
1441 else (100. *. (float state.y /. float maxy)) in
1444 Printf.sprintf
"Page %d of %d %.2f%%"
1445 (fn+1) state.pagecount
percent
1448 "Pages %d-%d of %d %.2f%%"
1449 (fn+1) (ln
+1) state.pagecount
percent
1454 begin match state.layout with
1457 doreshape (l.pagew
+ conf.scrollw
) l.pageh
;
1458 Glut.postRedisplay
();
1462 enterbookmarkmode ()
1466 match state.layout with
1469 (s, 0, l.pageno, float l.pagey /. float l.pageh
)
1473 enttext ('~'
, "", None
, textentry, ondone)
1477 showtext ' '
"Quick bookmark added";
1480 begin match state.layout with
1482 let rect = getpdimrect
l.pagedimno
in
1486 (truncate
(1.8 *. (rect.(1) -. rect.(0))),
1487 truncate
(1.2 *. (rect.(3) -. rect.(0))))
1489 (truncate
(rect.(1) -. rect.(0)),
1490 truncate
(rect.(3) -. rect.(0)))
1494 doreshape (w + conf.scrollw
) (h + conf.interpagespace)
1496 Glut.postRedisplay
();
1502 reinit (conf.angle
+ (if c = '
>'
then 30 else -30)) conf.proportional
1507 (min
(state.colorscale
+. (if c = '
]'
then 0.1 else -0.1)) 1.0);
1508 Glut.postRedisplay
()
1510 | 'k'
-> gotoy (clamp (-conf.scrollincr
))
1511 | 'j'
-> gotoy (clamp conf.scrollincr
)
1513 | '
r'
-> opendoc state.path
state.password
1516 vlog "huh? %d %c" key
(Char.chr key
);
1519 let textentrykeyboard ~key ~x ~
y ((c, text, opthist
, onkey
, ondone), mode
) =
1521 state.mode
<- Textentry
(te
, mode
);
1524 Glut.postRedisplay
()
1526 match Char.unsafe_chr key
with
1528 let len = String.length
text in
1532 Glut.postRedisplay
();
1535 let s = String.sub
text 0 (len - 1) in
1536 enttext (c, s, opthist
, onkey
, ondone)
1542 Glut.postRedisplay
()
1545 begin match opthist
with
1547 | Some
(_
, onhistcancel
) -> onhistcancel
()
1550 Glut.postRedisplay
()
1553 begin match onkey
text key
with
1557 Glut.postRedisplay
()
1560 enttext (c, text, opthist
, onkey
, ondone);
1564 Glut.postRedisplay
()
1567 state.mode
<- Textentry
(te
, mode
);
1568 Glut.postRedisplay
()
1572 let birdseyekeyboard ~key ~x ~
y ((c, leftx
, pageno, hooverpageno
) as beye
) =
1576 reshape conf.winw
conf.winh
1579 let y, h = getpageyh pageno in
1580 let top = (conf.winh
- h) / 2 in
1581 gotoy (max
0 (y - top))
1586 reshape conf.winw
conf.winh
;
1587 state.anchor <- (pageno, 0.0);
1590 viewkeyboard ~key ~x ~
y
1593 let outlinekeyboard ~key ~x ~
y (allowdel
, active, first
, outlines, qsearch
) =
1594 let narrow outlines pattern
=
1595 let reopt = try Some
(Str.regexp_case_fold pattern
) with _
-> None
in
1599 let rec fold accu n =
1603 let (s, _
, _
, _
) as o
= outlines.(n) in
1605 if (try ignore
(Str.search_forward re
s 0); true
1606 with Not_found
-> false)
1612 let matched = fold [] (Array.length
outlines - 1) in
1613 if matched = [] then None
else Some
(Array.of_list
matched)
1615 let search active pattern
incr =
1618 if n = Array.length
outlines || n = -1
1621 let (s, _
, _
, _
) = outlines.(n) in
1623 (try ignore
(Str.search_forward re
s 0); true
1624 with Not_found
-> false)
1626 else loop (n + incr)
1631 let re = Str.regexp_case_fold pattern
in
1637 let firstof active = max
0 (active - maxoutlinerows () / 2) in
1640 if String.length qsearch
= 0
1644 Glut.postRedisplay
();
1648 state.mode
<- Outline
(allowdel
, active, first
, outlines, "");
1649 Glut.postRedisplay
();
1653 let incr = if key
= 18 then -1 else 1 in
1655 match search (active + incr) qsearch
incr with
1657 state.text <- qsearch ^
" [not found]";
1660 state.text <- qsearch
;
1661 active, firstof active
1663 state.mode
<- Outline
(allowdel
, active, first
, outlines, qsearch
);
1664 Glut.postRedisplay
();
1667 let len = String.length qsearch
in
1674 state.mode
<- Outline
(allowdel
, active, first
, outlines, "");
1677 let qsearch = String.sub
qsearch 0 (len - 1) in
1679 match search active qsearch ~
-1 with
1681 state.text <- qsearch ^
" [not found]";
1684 state.text <- qsearch;
1685 active, firstof active
1687 state.mode
<- Outline
(allowdel
, active, first
, outlines, qsearch);
1689 Glut.postRedisplay
()
1692 if active < Array.length
outlines
1694 let (_
, _
, n, t
) = outlines.(active) in
1698 if allowdel
then state.bookmarks <- Array.to_list
outlines;
1700 Glut.postRedisplay
();
1702 | _
when key
>= 32 && key
< 127 ->
1703 let pattern = addchar qsearch (Char.chr key
) in
1705 match search active pattern 1 with
1707 state.text <- pattern ^
" [not found]";
1710 state.text <- pattern;
1711 active, firstof active
1713 state.mode
<- Outline
(allowdel
, active, first
, outlines, pattern);
1714 Glut.postRedisplay
()
1716 | 14 when not allowdel
-> (* ctrl-n *)
1717 if String.length
qsearch > 0
1719 let optoutlines = narrow outlines qsearch in
1720 begin match optoutlines with
1721 | None
-> state.text <- "can't narrow"
1723 state.mode
<- Outline
(allowdel
, 0, 0, outlines, qsearch);
1724 match state.outlines with
1727 state.outlines <- Onarrow
(qsearch, outlines, a)
1728 | Onarrow
(pat
, a, b) ->
1729 state.outlines <- Onarrow
(qsearch, outlines, b)
1732 Glut.postRedisplay
()
1734 | 21 when not allowdel
-> (* ctrl-u *)
1736 match state.outlines with
1739 let a = Array.of_list
(List.rev
l) in
1740 state.outlines <- Oarray
a;
1742 | Onarrow
(pat
, a, b) ->
1743 state.outlines <- Oarray
b;
1747 state.mode
<- Outline
(allowdel
, 0, 0, outline, qsearch);
1748 Glut.postRedisplay
()
1751 state.mode
<- Outline
1752 (allowdel
, active, firstof active, outlines, qsearch);
1753 Glut.postRedisplay
()
1755 | 127 when allowdel
->
1756 let len = Array.length
outlines - 1 in
1760 state.bookmarks <- [];
1763 let bookmarks = Array.init
len
1765 let i = if i >= active then i + 1 else i in
1777 Glut.postRedisplay
()
1779 | _
-> dolog "unknown key %d" key
1782 let keyboard ~key ~x ~
y =
1787 match state.mode
with
1788 | Outline
outline -> outlinekeyboard ~key ~x ~
y outline
1789 | Textentry
textentry -> textentrykeyboard ~key ~x ~
y textentry
1790 | Birdseye birdseye
-> birdseyekeyboard ~key ~x ~
y birdseye
1791 | View
-> viewkeyboard ~key ~x ~
y
1794 let birdseyespecial key x
y (conf, leftx
, pageno, hooverpageno
) =
1797 let pageno = max
0 (pageno - 1) in
1798 let rec loop = function
1799 | [] -> gotopage1nonav pageno 0
1800 | l :: _
when l.pageno = pageno ->
1801 if l.pagedispy
>= 0 && l.pagey = 0
1802 then Glut.postRedisplay
()
1803 else gotopage1nonav pageno 0
1804 | _
:: rest
-> loop rest
1807 state.mode
<- Birdseye
(conf, leftx
, pageno, hooverpageno
)
1810 let pageno = min
(state.pagecount
- 1) (pageno + 1) in
1811 state.mode
<- Birdseye
(conf, leftx
, pageno, hooverpageno
);
1812 let rec loop = function
1814 let y, h = getpageyh pageno in
1815 let dy = (y - state.y) - (conf.winh
- h - conf.interpagespace) in
1817 | l :: rest
when l.pageno = pageno ->
1818 if l.pagevh != l.pageh
1819 then gotoy (clamp (l.pageh
- l.pagevh + conf.interpagespace))
1820 else Glut.postRedisplay
()
1821 | l :: rest
-> loop rest
1825 | Glut.KEY_PAGE_UP
->
1826 begin match state.layout with
1830 state.mode
<- Birdseye
(conf, leftx
, l.pageno, hooverpageno
);
1831 gotopage1nonav l.pageno 0;
1834 let layout = layout (state.y-conf.winh
) conf.winh
in
1836 | [] -> gotoy (clamp (-conf.winh
))
1838 state.mode
<- Birdseye
(conf, leftx
, l.pageno, hooverpageno
);
1839 gotopage1nonav l.pageno 0
1842 | [] -> gotoy (clamp (-conf.winh
))
1845 | Glut.KEY_PAGE_DOWN
->
1846 begin match List.rev
state.layout with
1848 state.mode
<- Birdseye
(conf, leftx
, l.pageno, hooverpageno
);
1849 gotoy (clamp (l.pagedispy
+ l.pageh
))
1850 | [] -> gotoy (clamp conf.winh
)
1854 state.mode
<- Birdseye
(conf, leftx
, 0, hooverpageno
);
1858 let pageno = state.pagecount
- 1 in
1859 state.mode
<- Birdseye
(conf, leftx
, pageno, hooverpageno
);
1860 if not
(pagevisible state.layout pageno)
1863 match List.rev
state.pdims
with
1865 | (_
, _
, h, _
) :: _
-> h
1867 gotoy (max
0 (getpagey pageno - (conf.winh
- h - conf.interpagespace)))
1868 else Glut.postRedisplay
();
1872 let special ~key ~x ~
y =
1873 match state.mode
with
1874 | View
| (Birdseye _
) when key
= Glut.KEY_F9
->
1876 reshape conf.winw
conf.winh
;
1879 birdseyespecial key x
y vals
1881 | View
| Textentry _
->
1882 begin match state.mode
with
1886 | Glut.KEY_F3
-> search state.searchpattern
true; state.y
1887 | Glut.KEY_UP
-> clamp (-conf.scrollincr
)
1888 | Glut.KEY_DOWN
-> clamp conf.scrollincr
1889 | Glut.KEY_PAGE_UP
->
1890 if Glut.getModifiers
() land Glut.active_ctrl
!= 0
1892 match state.layout with
1894 | l :: _
-> state.y - l.pagey
1897 | Glut.KEY_PAGE_DOWN
->
1898 if Glut.getModifiers
() land Glut.active_ctrl
!= 0
1900 match List.rev
state.layout with
1902 | l :: _
-> getpagey l.pageno
1905 | Glut.KEY_HOME
-> addnav (); 0
1908 state.maxy - (if conf.maxhfit
then conf.winh
else 0)
1910 | Glut.KEY_RIGHT
when conf.zoom > 1.0 ->
1911 state.x
<- state.x
- 10;
1913 | Glut.KEY_LEFT
when conf.zoom > 1.0 ->
1914 state.x
<- state.x
+ 10;
1919 gotoy_and_clear_text y
1922 ((c, s, (Some
(action, _
) as onhist), onkey
, ondone), mode
) ->
1925 | Glut.KEY_UP
-> action HCprev
1926 | Glut.KEY_DOWN
-> action HCnext
1927 | Glut.KEY_HOME
-> action HCfirst
1928 | Glut.KEY_END
-> action HClast
1931 state.mode
<- Textentry
((c, s, onhist, onkey
, ondone), mode
);
1932 Glut.postRedisplay
()
1937 | Outline
(allowdel
, active, first
, outlines, qsearch) ->
1938 let maxrows = maxoutlinerows () in
1939 let calcfirst first
active =
1942 let rows = active - first
in
1943 if rows > maxrows then active - maxrows else first
1947 let active = active + incr in
1948 let active = max
0 (min
active (Array.length
outlines - 1)) in
1949 let first = calcfirst first active in
1950 state.mode
<- Outline
(allowdel
, active, first, outlines, qsearch);
1951 Glut.postRedisplay
()
1953 let updownlevel incr =
1954 let len = Array.length
outlines in
1955 let (_
, curlevel
, _
, _
) = outlines.(active) in
1957 if i = len then i-1 else if i = -1 then 0 else
1958 let (_
, l, _
, _
) = outlines.(i) in
1959 if l != curlevel
then i else flow (i+incr)
1961 let active = flow active in
1962 let first = calcfirst first active in
1963 state.mode
<- Outline
(allowdel
, active, first, outlines, qsearch);
1964 Glut.postRedisplay
()
1967 | Glut.KEY_UP
-> navigate ~
-1
1968 | Glut.KEY_DOWN
-> navigate 1
1969 | Glut.KEY_PAGE_UP
-> navigate ~
-maxrows
1970 | Glut.KEY_PAGE_DOWN
-> navigate maxrows
1972 | Glut.KEY_RIGHT
when not allowdel
-> updownlevel 1
1973 | Glut.KEY_LEFT
when not allowdel
-> updownlevel ~
-1
1976 state.mode
<- Outline
(allowdel
, 0, 0, outlines, qsearch);
1977 Glut.postRedisplay
()
1980 let active = Array.length
outlines - 1 in
1981 let first = max
0 (active - maxrows) in
1982 state.mode
<- Outline
(allowdel
, active, first, outlines, qsearch);
1983 Glut.postRedisplay
()
1988 let drawplaceholder l =
1989 let margin = state.x
+ (conf.winw
- (state.w + conf.scrollw
)) / 2 in
1991 (float l.pagex
, float l.pagedispy
)
1992 (float (l.pagew
+ l.pagex
), float (l.pagedispy
+ l.pagevh))
1994 let x = float (if margin < 0 then -margin else l.pagex
)
1995 and y = float (l.pagedispy
+ 13) in
1996 let font = Glut.BITMAP_8_BY_13
in
1997 GlDraw.color
(0.0, 0.0, 0.0);
1998 GlPix.raster_pos ~
x ~
y ();
1999 String.iter
(fun c -> Glut.bitmapCharacter ~
font ~
c:(Char.code
c))
2000 ("Loading " ^ string_of_int
(l.pageno + 1));
2003 let now () = Unix.gettimeofday
();;
2007 match state.mode
with
2008 | Textentry _
-> scalecolor 0.4
2009 | View
| Outline _
-> scalecolor 1.0
2010 | Birdseye
(_
, _
, pageno, hooverpageno
) ->
2011 if l.pageno = pageno
2014 if l.pageno = hooverpageno
2020 begin match getopaque l.pageno with
2021 | Some
(opaque, _
) when validopaque opaque ->
2023 draw
(l.pagedispy
, l.pagew
, l.pagevh, l.pagey, conf.hlinks
)
2027 vlog "draw %d %f sec" l.pageno d;
2035 let maxy = state.maxy - (if conf.maxhfit
then conf.winh
else 0) in
2036 let sh = (float (maxy + conf.winh
) /. float conf.winh
) in
2037 let sh = float conf.winh
/. sh in
2038 let sh = max
sh (float conf.scrollh
) in
2041 if state.y = state.maxy
2043 else float y /. float maxy
2045 let position = (float conf.winh
-. sh) *. percent in
2048 if position +. sh > float conf.winh
2049 then float conf.winh
-. sh
2055 let scrollindicator () =
2056 GlDraw.color (0.64 , 0.64, 0.64);
2058 (float (conf.winw
- conf.scrollw
), 0.)
2059 (float conf.winw
, float conf.winh
)
2061 GlDraw.color (0.0, 0.0, 0.0);
2063 let position, sh = scrollph state.y in
2065 (float (conf.winw
- conf.scrollw
), position)
2066 (float conf.winw
, position +. sh)
2070 let showsel margin =
2071 match state.mstate
with
2072 | Mnone
| Mscroll _
| Mpan _
->
2075 | Msel
((x0
, y0
), (x1
, y1
)) ->
2076 let rec loop = function
2078 if (y0
>= l.pagedispy
&& y0
<= (l.pagedispy
+ l.pagevh))
2079 || ((y1
>= l.pagedispy
&& y1
<= (l.pagedispy
+ l.pagevh)))
2081 match getopaque l.pageno with
2082 | Some
(opaque, _
) when validopaque opaque ->
2083 let oy = -l.pagey + l.pagedispy
in
2085 (x0
- margin - state.x, y0
,
2086 x1
- margin - state.x, y1
) oy;
2096 let panx = float state.x in
2098 GlDraw.color (0.0, 0.0, 1.0) ~alpha
:0.5;
2099 GlFunc.blend_func `src_alpha `one_minus_src_alpha
;
2101 (fun (pageno, c, (x0
, y0
, x1
, y1
, x2
, y2
, x3
, y3
)) ->
2103 if l.pageno = pageno
2105 let d = float (l.pagedispy
- l.pagey) in
2106 GlDraw.color (0.0, 0.0, 1.0 /. float c) ~alpha
:0.5;
2107 GlDraw.begins `quads
;
2109 GlDraw.vertex2
(x0
+.panx, y0
+.d);
2110 GlDraw.vertex2
(x1
+.panx, y1
+.d);
2111 GlDraw.vertex2
(x2
+.panx, y2
+.d);
2112 GlDraw.vertex2
(x3
+.panx, y3
+.d);
2122 let showoutline () =
2123 match state.mode
with
2124 | Outline
(allowdel
, active, first, outlines, qsearch) ->
2126 GlFunc.blend_func `src_alpha `one_minus_src_alpha
;
2127 GlDraw.color (0., 0., 0.) ~alpha
:0.85;
2128 GlDraw.rect (0., 0.) (float conf.winw
, float conf.winh
);
2131 GlDraw.color (1., 1., 1.);
2132 let font = Glut.BITMAP_9_BY_15
in
2133 let draw_string x y s =
2134 GlPix.raster_pos ~
x ~
y ();
2135 String.iter
(fun c -> Glut.bitmapCharacter ~
font ~
c:(Char.code
c)) s
2138 if row
= Array.length
outlines || (row
- first) * 16 > conf.winh
2141 let (s, l, _
, _
) = outlines.(row
) in
2142 let y = (row
- first) * 16 in
2147 GlDraw.polygon_mode `both `line
;
2148 GlFunc.blend_func `src_alpha `one_minus_src_alpha
;
2149 GlDraw.color (1., 1., 1.) ~alpha
:0.9;
2150 GlDraw.rect (0., float (y + 1))
2151 (float (conf.winw
- 1), float (y + 18));
2152 GlDraw.polygon_mode `both `fill
;
2154 GlDraw.color (1., 1., 1.);
2156 draw_string (float x) (float (y + 16)) s;
2166 let margin = (conf.winw
- (state.w + conf.scrollw
)) / 2 in
2167 GlDraw.viewport
margin 0 state.w conf.winh
;
2169 GlClear.color (scalecolor 0.5);
2170 GlClear.clear
[`
color];
2173 Gl.enable `scissor_test
;
2174 GlMisc.scissor
0 0 (conf.winw
- conf.scrollw
) conf.winh
;
2176 List.iter
drawpage state.layout;
2179 Gl.disable `scissor_test
2183 let x = -.float state.x in
2184 GlMat.translate ~
x ();
2188 GlDraw.viewport
0 0 conf.winw
conf.winh
;
2193 Glut.swapBuffers
();
2197 let margin = (conf.winw
- (state.w + conf.scrollw
)) / 2 in
2198 let x = x - margin - state.x in
2199 let rec f = function
2201 begin match getopaque l.pageno with
2202 | Some
(opaque, _
) when validopaque opaque ->
2203 let y = y - l.pagedispy
in
2206 let y = l.pagey + y in
2207 let x = x - l.pagex
in
2208 match whatsunder
opaque x y with
2221 let viewmouse button bstate
x y =
2223 | Glut.OTHER_BUTTON
n when (n == 3 || n == 4) && bstate
= Glut.UP
->
2231 let incr = incr * 2 in
2232 let y = clamp incr in
2233 gotoy_and_clear_text y
2235 | Glut.LEFT_BUTTON
when Glut.getModifiers
() land Glut.active_ctrl
!= 0 ->
2236 if bstate
= Glut.DOWN
2238 Glut.setCursor
Glut.CURSOR_CROSSHAIR
;
2239 state.mstate
<- Mpan
(x, y)
2242 state.mstate
<- Mnone
2244 | Glut.LEFT_BUTTON
when x > conf.winw
- conf.scrollw
->
2245 if bstate
= Glut.DOWN
2247 let position, sh = scrollph state.y in
2248 if y > truncate
position && y < truncate
(position +. sh)
2250 state.mstate
<- Mscroll
2252 let percent = float y /. float conf.winh
in
2253 let desty = truncate
(float (state.maxy - conf.winh
) *. percent) in
2255 state.mstate
<- Mscroll
2257 state.mstate
<- Mnone
2259 | Glut.LEFT_BUTTON
->
2260 let dest = if bstate
= Glut.DOWN
then getunder x y else Unone
in
2261 begin match dest with
2262 | Ulinkgoto
(pageno, top) ->
2265 gotopage1 pageno top
2270 | Unone
when bstate
= Glut.DOWN
->
2271 Glut.setCursor
Glut.CURSOR_CROSSHAIR
;
2272 state.mstate
<- Mpan
(x, y);
2274 | Unone
| Utext _
->
2275 if bstate
= Glut.DOWN
2277 if conf.angle
mod 360 = 0
2279 state.mstate
<- Msel
((x, y), (x, y));
2280 Glut.postRedisplay
()
2284 match state.mstate
with
2288 state.mstate
<- Mnone
2291 Glut.setCursor
Glut.CURSOR_INHERIT
;
2292 state.mstate
<- Mnone
2294 | Msel
((x0
, y0
), (x1
, y1
)) ->
2296 if (y0
>= l.pagedispy
&& y0
<= (l.pagedispy
+ l.pagevh))
2297 || ((y1
>= l.pagedispy
&& y1
<= (l.pagedispy
+ l.pagevh)))
2299 match getopaque l.pageno with
2300 | Some
(opaque, _
) when validopaque opaque ->
2304 List.iter
f state.layout;
2305 copysel
""; (* ugly *)
2306 Glut.setCursor
Glut.CURSOR_INHERIT
;
2307 state.mstate
<- Mnone
;
2314 let birdseyemouse button bstate
x y (conf, leftx
, pageno, hooverpageno
) =
2316 | Glut.LEFT_BUTTON
when bstate
= Glut.UP
->
2317 let margin = (conf.winw
- (state.w + conf.scrollw
)) / 2 in
2318 let rec loop = function
2321 if y > l.pagedispy
&& y < l.pagedispy
+ l.pagevh
2322 && x > margin && x < margin + l.pagew
2324 birdseyeoff (conf, leftx
, l.pageno, hooverpageno
);
2325 reshape conf.winw
conf.winh
;
2326 state.anchor <- (l.pageno, 0.0);
2334 let mouse bstate button
x y =
2335 match state.mode
with
2336 | View
-> viewmouse button bstate
x y
2337 | Birdseye beye
-> birdseyemouse button bstate
x y beye
2342 let mouse ~button ~
state ~
x ~
y = mouse state button
x y;;
2345 match state.mode
with
2348 match state.mstate
with
2354 state.mstate
<- Mpan
(x, y);
2355 if conf.zoom > 1.0 then state.x <- state.x + dx;
2357 gotoy_and_clear_text y
2360 state.mstate
<- Msel
(a, (x, y));
2361 Glut.postRedisplay
()
2364 let y = min
conf.winh
(max
0 y) in
2365 let percent = float y /. float conf.winh
in
2366 let y = truncate
(float (state.maxy - conf.winh
) *. percent) in
2367 gotoy_and_clear_text y
2371 match state.mode
with
2372 | Birdseye
(conf, leftx
, pageno, hooverpageno
) ->
2373 let margin = (conf.winw
- (state.w + conf.scrollw
)) / 2 in
2374 let rec loop = function
2376 if hooverpageno
!= -1
2378 state.mode
<- Birdseye
(conf, leftx
, pageno, -1);
2379 Glut.postRedisplay
();
2382 if y > l.pagedispy
&& y < l.pagedispy
+ l.pagevh
2383 && x > margin && x < margin + l.pagew
2385 state.mode
<- Birdseye
(conf, leftx
, pageno, l.pageno);
2386 Glut.postRedisplay
();
2394 match state.mstate
with
2396 begin match getunder x y with
2397 | Unone
-> Glut.setCursor
Glut.CURSOR_INHERIT
2399 if conf.underinfo
then showtext 'u'
("ri: " ^ uri
);
2400 Glut.setCursor
Glut.CURSOR_INFO
2401 | Ulinkgoto
(page
, y) ->
2403 then showtext 'p'
("age: " ^ string_of_int page
);
2404 Glut.setCursor
Glut.CURSOR_INFO
2406 if conf.underinfo
then showtext '
f'
("ont: " ^
s);
2407 Glut.setCursor
Glut.CURSOR_TEXT
2410 | Mpan _
| Msel _
| Mscroll
->
2421 match Sys.os_type
with
2422 | "Win32" -> Sys.getenv
"HOMEPATH"
2423 | _
-> Sys.getenv
"HOME"
2426 ("Can not determine home directory location: " ^
2427 Printexc.to_string exn
);
2431 let config_of c attrs
=
2435 | "scroll-bar-width" -> { c with scrollw
= max
0 (int_of_string v
) }
2436 | "scroll-handle-height" -> { c with scrollh
= max
0 (int_of_string v
) }
2437 | "case-insensitive-search" -> { c with icase
= bool_of_string v
}
2438 | "preload" -> { c with preload = bool_of_string v
}
2439 | "page-bias" -> { c with pagebias
= int_of_string v
}
2440 | "scroll-step" -> { c with scrollincr
= max
1 (int_of_string v
) }
2441 | "max-height-fit" -> { c with maxhfit
= bool_of_string v
}
2442 | "crop-hack" -> { c with crophack
= bool_of_string v
}
2443 | "throttle" -> { c with showall
= bool_of_string v
}
2444 | "highlight-links" -> { c with hlinks
= bool_of_string v
}
2445 | "under-cursor-info" -> { c with underinfo
= bool_of_string v
}
2446 | "vertical-margin" -> { c with interpagespace = max
0 (int_of_string v
) }
2448 let zoom = float_of_string v
/. 100. in
2449 let zoom = max
0.01 (min
2.2 zoom) in
2450 { c with zoom = zoom }
2451 | "presentation" -> { c with presentation = bool_of_string v
}
2452 | "rotation-angle" -> { c with angle
= int_of_string v
}
2453 | "width" -> { c with winw
= max
20 (int_of_string v
) }
2454 | "height" -> { c with winh
= max
20 (int_of_string v
) }
2455 | "persistent-bookmarks" -> { c with savebmarks
= bool_of_string v
}
2456 | "proportional-display" -> { c with proportional
= bool_of_string v
}
2457 | "pixmap-cache-size" -> { c with memlimit
= max
2 (int_of_string v
) }
2458 | "tex-count" -> { c with texcount
= max
1 (int_of_string v
) }
2459 | "slice-height" -> { c with sliceheight
= max
2 (int_of_string v
) }
2460 | "thumbnail-width" -> { c with thumbw
= max
2 (int_of_string v
) }
2463 prerr_endline
("Error processing attribute (`" ^
2464 k ^
"'=`" ^ v ^
"'): " ^
Printexc.to_string exn
);
2467 let rec fold c = function
2470 let c = apply c k v
in
2476 let fromstring f pos
n v
d =
2479 dolog "Error processing attribute (%S=%S) at %d\n%s"
2480 n v pos
(Printexc.to_string exn
)
2485 let bookmark_of attrs
=
2486 let rec fold title page rely
= function
2487 | ("title", v
) :: rest
-> fold v page rely rest
2488 | ("page", v
) :: rest
-> fold title v rely rest
2489 | ("rely", v
) :: rest
-> fold title page v rest
2490 | _
:: rest
-> fold title page rely rest
2491 | [] -> title, page
, rely
2493 fold "invalid" "0" "0" attrs
2497 let rec fold path page rely pan
= function
2498 | ("path", v
) :: rest
-> fold v page rely pan rest
2499 | ("page", v
) :: rest
-> fold path v rely pan rest
2500 | ("rely", v
) :: rest
-> fold path page v pan rest
2501 | ("pan", v
) :: rest
-> fold path page rely v rest
2502 | _
:: rest
-> fold path page rely pan rest
2503 | [] -> path
, page
, rely
, pan
2505 fold "" "0" "0" "0" attrs
2508 let setconf dst src
=
2509 dst
.scrollw
<- src
.scrollw
;
2510 dst
.scrollh
<- src
.scrollh
;
2511 dst
.icase
<- src
.icase
;
2512 dst
.preload <- src
.preload;
2513 dst
.pagebias
<- src
.pagebias
;
2514 dst
.verbose
<- src
.verbose
;
2515 dst
.scrollincr
<- src
.scrollincr
;
2516 dst
.maxhfit
<- src
.maxhfit
;
2517 dst
.crophack
<- src
.crophack
;
2518 dst
.autoscroll
<- src
.autoscroll
;
2519 dst
.showall
<- src
.showall
;
2520 dst
.hlinks
<- src
.hlinks
;
2521 dst
.underinfo
<- src
.underinfo
;
2522 dst
.interpagespace <- src
.interpagespace;
2523 dst
.zoom <- src
.zoom;
2524 dst
.presentation <- src
.presentation;
2525 dst
.angle
<- src
.angle
;
2526 dst
.winw
<- src
.winw
;
2527 dst
.winh
<- src
.winh
;
2528 dst
.savebmarks
<- src
.savebmarks
;
2529 dst
.memlimit
<- src
.memlimit
;
2530 dst
.proportional
<- src
.proportional
;
2531 dst
.texcount
<- src
.texcount
;
2532 dst
.sliceheight
<- src
.sliceheight
;
2533 dst
.thumbw
<- src
.thumbw
;
2537 let l = String.length
s in
2538 let b = Buffer.create
l in
2544 let h = Hashtbl.create
10 in
2545 let dc = { defconf with angle
= defconf.angle
} in
2546 let rec toplevel v t spos epos
=
2548 | Vdata
| Vcdata
| Vend
-> v
2549 | Vopen
("llppconfig", attrs
, closed
) ->
2552 else { v
with f = llppconfig
}
2554 error
"unexpected subelement at top level" s spos
2555 | Vclose tag
-> error
"unexpected close at top level" s spos
2557 and llppconfig v t spos epos
=
2559 | Vdata
| Vcdata
| Vend
-> v
2560 | Vopen
("defaults", attrs
, closed
) ->
2561 let c = config_of dc attrs
in
2565 else { v
with f = skip
"defaults" (fun () -> v
) }
2567 | Vopen
("doc", attrs
, closed
) ->
2568 let pathent, spage
, srely
, span
= doc_of attrs
in
2569 let path = unent pathent
2570 and pageno = fromstring int_of_string spos
"page" spage
0
2571 and rely
= fromstring float_of_string spos
"rely" srely
0.0
2572 and pan
= fromstring int_of_string spos
"pan" span
0 in
2573 let c = config_of dc attrs
in
2574 let anchor = (pageno, rely
) in
2576 then (Hashtbl.add
h path (c, [], pan
, anchor); v
)
2577 else { v
with f = doc
path pan
anchor c [] }
2579 | Vopen
(tag
, _
, closed
) ->
2580 error
"unexpected subelement in llppconfig" s spos
2582 | Vclose
"llppconfig" -> { v
with f = toplevel }
2583 | Vclose tag
-> error
"unexpected close in llppconfig" s spos
2585 and doc
path pan
anchor c bookmarks v t spos epos
=
2587 | Vdata
| Vcdata
-> v
2588 | Vend
-> error
"unexpected end of input in doc" s spos
2589 | Vopen
("bookmarks", attrs
, closed
) ->
2590 { v
with f = pbookmarks
path pan
anchor c bookmarks }
2592 | Vopen
(tag
, _
, _
) ->
2593 error
"unexpected subelement in doc" s spos
2596 Hashtbl.add
h path (c, List.rev
bookmarks, pan
, anchor);
2597 { v
with f = llppconfig
}
2599 | Vclose tag
-> error
"unexpected close in doc" s spos
2601 and pbookmarks
path pan
anchor c bookmarks v t spos epos
=
2603 | Vdata
| Vcdata
-> v
2604 | Vend
-> error
"unexpected end of input in bookmarks" s spos
2605 | Vopen
("item", attrs
, closed
) ->
2606 let titleent, spage
, srely
= bookmark_of attrs
in
2607 let page = fromstring int_of_string spos
"page" spage
0
2608 and rely
= fromstring float_of_string spos
"rely" srely
0.0 in
2609 let bookmarks = (unent titleent, 0, page, rely
) :: bookmarks in
2611 then { v
with f = pbookmarks
path pan
anchor c bookmarks }
2614 { v
with f = skip
"item" f }
2617 error
"unexpected subelement in bookmarks" s spos
2619 | Vclose
"bookmarks" ->
2620 { v
with f = doc
path pan
anchor c bookmarks }
2622 | Vclose tag
-> error
"unexpected close in bookmarks" s spos
2624 and skip tag
f v t spos epos
=
2626 | Vdata
| Vcdata
-> v
2628 error
("unexpected end of input in skipped " ^ tag
) s spos
2629 | Vopen
(tag'
, _
, closed
) ->
2633 let f'
() = { v
with f = skip tag
f } in
2634 { v
with f = skip tag'
f'
}
2638 else error
("unexpected close in skipped " ^ tag
) s spos
2641 parse
{ f = toplevel; accu = () } s;
2647 let len = in_channel_length ic
in
2648 let s = String.create
len in
2649 really_input ic
s 0 len;
2652 | Parse_error
(msg
, s, pos
) ->
2653 let subs = subs s pos
in
2654 let s = Printf.sprintf
"%s: at %d [..%s..]" msg pos
subs in
2655 failwith
("parse error: " ^
s)
2658 failwith
("config load error: " ^
Printexc.to_string exn
)
2664 let dir = Filename.concat
home ".config" in
2665 if Sys.is_directory
dir then dir else home
2668 Filename.concat
dir "llpp.conf"
2672 if Sys.file_exists
path
2675 (try Some
(open_in_bin
path)
2678 ("Error opening configuation file `" ^
path ^
"': " ^
2679 Printexc.to_string exn
);
2688 ("Error loading configuation from `" ^
path ^
"': " ^
2689 Printexc.to_string exn
);
2695 f (Hashtbl.create
0, defconf)
2700 let pc, pb
, px
, pa
=
2702 Hashtbl.find
h (Filename.basename
state.path)
2703 with Not_found
-> dc, [], 0, (0, 0.0)
2707 state.bookmarks <- pb
;
2709 cbput state.hists
.nav pa
;
2714 let add_attrs bb always
dc c =
2717 then Printf.bprintf bb
"\n %s='%b'" s a
2720 then Printf.bprintf bb
"\n %s='%d'" s a
2723 then Printf.bprintf bb
"\n %s='%f'" s (a*.100.)
2727 then dc.winw
, dc.winh
2729 match state.fullscreen
with
2731 | None
-> c.winw
, c.winh
2733 let zoom, presentation, interpagespace, showall
=
2735 then dc.zoom, dc.presentation, dc.interpagespace, dc.showall
2737 match state.mode
with
2738 | Birdseye
(bc
, _
, _
, _
) ->
2739 bc
.zoom, bc
.presentation, bc
.interpagespace, bc
.showall
2740 | _
-> c.zoom, c.presentation, c.interpagespace, c.showall
2742 oi
"width" w dc.winw
;
2743 oi
"height" h dc.winh
;
2744 oi
"scroll-bar-width" c.scrollw
dc.scrollw
;
2745 oi
"scroll-handle-height" c.scrollh
dc.scrollh
;
2746 ob "case-insensitive-search" c.icase
dc.icase
;
2747 ob "preload" c.preload dc.preload;
2748 oi
"page-bias" c.pagebias
dc.pagebias
;
2749 oi
"scroll-step" c.scrollincr
dc.scrollincr
;
2750 ob "max-height-fit" c.maxhfit
dc.maxhfit
;
2751 ob "crop-hack" c.crophack
dc.crophack
;
2752 ob "throttle" showall
dc.showall
;
2753 ob "highlight-links" c.hlinks
dc.hlinks
;
2754 ob "under-cursor-info" c.underinfo
dc.underinfo
;
2755 oi
"vertical-margin" interpagespace dc.interpagespace;
2756 oz
"zoom" zoom dc.zoom;
2757 ob "presentation" presentation dc.presentation;
2758 oi
"rotation-angle" c.angle
dc.angle
;
2759 ob "persistent-bookmarks" c.savebmarks
dc.savebmarks
;
2760 ob "proportional-display" c.proportional
dc.proportional
;
2761 oi
"pixmap-cache-size" c.memlimit
dc.memlimit
;
2762 oi
"texcount" c.texcount
dc.texcount
;
2763 oi
"slice-height" c.sliceheight
dc.sliceheight
;
2764 oi
"thumbnail-width" c.thumbw
dc.thumbw
;
2768 let bb = Buffer.create
32768 in
2770 Buffer.add_string
bb "<llppconfig>\n<defaults ";
2771 add_attrs bb true dc dc;
2772 Buffer.add_string
bb "/>\n";
2774 let adddoc path x anchor c bookmarks =
2775 if bookmarks == [] && c = dc && anchor = emptyanchor
2778 Printf.bprintf
bb "<doc path='%s'"
2779 (enent
path 0 (String.length
path));
2781 if anchor <> emptyanchor
2783 let n, y = anchor in
2784 Printf.bprintf
bb " page='%d'" n;
2785 Printf.bprintf
bb " rely='%f'" y;
2789 then Printf.bprintf
bb " pan='%d'" x;
2791 add_attrs bb false dc c;
2793 begin match bookmarks with
2794 | [] -> Buffer.add_string
bb "/>\n"
2796 Buffer.add_string
bb ">\n<bookmarks>\n";
2797 List.iter
(fun (title, _level
, page, rely
) ->
2799 "<item title='%s' page='%d' rely='%f'/>\n"
2800 (enent
title 0 (String.length
title))
2804 Buffer.add_string
bb "</bookmarks>\n</doc>\n";
2810 match state.mode
with
2811 | Birdseye
(_
, x, _
, _
) -> x
2814 let basename = Filename.basename state.path in
2815 adddoc basename x (getanchor ()) conf
2816 (if conf.savebmarks
then state.bookmarks else []);
2818 Hashtbl.iter
(fun path (c, bookmarks, x, y) ->
2820 then adddoc path x y c bookmarks
2822 Buffer.add_string
bb "</llppconfig>";
2825 if Buffer.length
bb > 0
2828 let tmp = path ^
".tmp" in
2829 let oc = open_out_bin
tmp in
2830 Buffer.output_buffer
oc bb;
2832 Sys.rename
tmp path;
2835 ("error while saving configuration: " ^
Printexc.to_string exn
)
2841 ["-p", Arg.String
(fun s -> state.password
<- s) , "password"]
2842 (fun s -> state.path <- s)
2843 ("Usage: " ^
Sys.argv
.(0) ^
" [options] some.pdf\noptions:")
2845 if String.length
state.path = 0
2846 then (prerr_endline
"filename missing"; exit
1);
2850 let _ = Glut.init
Sys.argv
in
2851 let () = Glut.initDisplayMode ~depth
:false ~double_buffer
:true () in
2852 let () = Glut.initWindowSize
conf.winw
conf.winh
in
2853 let _ = Glut.createWindow
("llpp " ^
Filename.basename state.path) in
2856 if Sys.os_type
= "Unix"
2858 Unix.socketpair
Unix.PF_UNIX
Unix.SOCK_STREAM
0
2860 let addr = Unix.ADDR_INET
(Unix.inet_addr_loopback
, 1337) in
2861 let sock = Unix.socket
Unix.PF_INET
Unix.SOCK_STREAM
0 in
2862 Unix.setsockopt
sock Unix.SO_REUSEADDR
true;
2863 Unix.bind
sock addr;
2865 let csock = Unix.socket
Unix.PF_INET
Unix.SOCK_STREAM
0 in
2866 Unix.connect
csock addr;
2867 let ssock, _ = Unix.accept
sock in
2870 Unix.setsockopt
sock Unix.TCP_NODELAY
true;
2871 Unix.setsockopt_optint
sock Unix.SO_LINGER None
;
2875 at_exit
(fun () -> Unix.shutdown
ssock Unix.SHUTDOWN_ALL
);
2879 let () = Glut.displayFunc
display in
2880 let () = Glut.reshapeFunc
reshape in
2881 let () = Glut.keyboardFunc
keyboard in
2882 let () = Glut.specialFunc
special in
2883 let () = Glut.idleFunc
(Some
idle) in
2884 let () = Glut.mouseFunc
mouse in
2885 let () = Glut.motionFunc
motion in
2886 let () = Glut.passiveMotionFunc
pmotion in
2888 init
ssock (conf.angle
, conf.proportional
, conf.texcount
, conf.sliceheight
);
2889 state.csock <- csock;
2890 state.ssock <- ssock;
2891 state.text <- "Opening " ^
state.path;
2892 writeopen state.path state.password
;
2896 let rec handlelablglutbug () =
2899 with Glut.BadEnum
"key in special_of_int" ->
2900 showtext '
!'
" LablGlut bug: special key not recognized";
2901 handlelablglutbug ()
2903 handlelablglutbug ();