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
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
##ifdef CAMLTK
(* type *)
type bindAction =
| BindSet of eventField list * (eventInfo -> unit)
| BindSetBreakable of eventField list * (eventInfo -> unit)
| BindRemove
| BindExtend of eventField list * (eventInfo -> unit)
(* /type *)
(*
FUNCTION
val bind:
widget -> (modifier list * xEvent) list -> bindAction -> unit
/FUNCTION
*)
let bind widget eventsequence action =
tkCommand [| TkToken "bind";
TkToken (Widget.name widget);
cCAMLtoTKeventSequence eventsequence;
begin match action with
BindRemove -> TkToken ""
| BindSet (what, f) ->
let cbId = register_callback widget (wrapeventInfo f what)
in
TkToken ("camlcb " ^ cbId ^ (writeeventField what))
| BindSetBreakable (what, f) ->
let cbId = register_callback widget (wrapeventInfo f what)
in
TkToken ("camlcb " ^ cbId ^ (writeeventField what) ^
" ; if { $BreakBindingsSequence == 1 } then { break ;} ; set BreakBindingsSequence 0")
| BindExtend (what, f) ->
let cbId = register_callback widget (wrapeventInfo f what)
in
TkToken ("+camlcb " ^ cbId ^ (writeeventField what))
end |]
;;
(* FUNCTION
(* unsafe *)
val bind_class :
string -> (modifier list * xEvent) list -> bindAction -> unit
(* /unsafe *)
/FUNCTION class arg is not constrained *)
let bind_class clas eventsequence action =
tkCommand [| TkToken "bind";
TkToken clas;
cCAMLtoTKeventSequence eventsequence;
begin match action with
BindRemove -> TkToken ""
| BindSet (what, f) ->
let cbId = register_callback Widget.dummy
(wrapeventInfo f what) in
TkToken ("camlcb " ^ cbId ^ (writeeventField what))
| BindSetBreakable (what, f) ->
let cbId = register_callback Widget.dummy
(wrapeventInfo f what) in
TkToken ("camlcb " ^ cbId ^ (writeeventField what)^
" ; if { $BreakBindingsSequence == 1 } then { break ;} ; set BreakBindingsSequence 0" )
| BindExtend (what, f) ->
let cbId = register_callback Widget.dummy
(wrapeventInfo f what) in
TkToken ("+camlcb " ^ cbId ^ (writeeventField what))
end |]
;;
(* FUNCTION
(* unsafe *)
val bind_tag :
string -> (modifier list * xEvent) list -> bindAction -> unit
(* /unsafe *)
/FUNCTION *)
let bind_tag = bind_class
;;
(*
FUNCTION
val break : unit -> unit
/FUNCTION
*)
let break = function () ->
Textvariable.set (Textvariable.coerce "BreakBindingsSequence") "1"
;;
(* Legacy functions *)
let tag_bind = bind_tag;;
let class_bind = bind_class;;
##else
let bind_class ~events ?(extend = false) ?(breakable = false) ?(fields = [])
?action ?on:widget name =
let widget = match widget with None -> Widget.dummy | Some w -> coe w in
tkCommand
[| TkToken "bind";
TkToken name;
cCAMLtoTKeventSequence events;
begin match action with None -> TkToken ""
| Some f ->
let cbId =
register_callback widget ~callback: (wrapeventInfo f fields) in
let cb = if extend then "+camlcb " else "camlcb " in
let cb = cb ^ cbId ^ writeeventField fields in
let cb =
if breakable then
cb ^ " ; if { $BreakBindingsSequence == 1 } then { break ;}"
^ " ; set BreakBindingsSequence 0"
else cb in
TkToken cb
end
|]
;;
let bind ~events ?extend ?breakable ?fields ?action widget =
bind_class ~events ?extend ?breakable ?fields ?action ~on:widget
(Widget.name widget)
;;
let bind_tag = bind_class
;;
(*
FUNCTION
val break : unit -> unit
/FUNCTION
*)
let break = function () ->
tkCommand [| TkToken "set" ; TkToken "BreakBindingsSequence" ; TkToken "1" |]
;;
##endif
|
