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(* Some CamlTk4 Demonstration by JPF *)
(* First, open these modules for convenience *)
open Tk
(* Dummy let *)
let _ =
(* Initialize Tk *)
let top = openTk () in
(* Title setting *)
Wm.title_set top title:"LablTk demo";
(* Base frame *)
let base = Frame.create parent:top () in
pack [base];
(* Menu bar *)
let bar =
Frame.create parent: base borderwidth: (`Pix 2) relief: `Raised () in
pack [bar] fill: `X;
(* Menu and Menubutton *)
let meb = Menubutton.create parent: bar text: "Menu" () in
let men = Menu.create parent: meb () in
Menu.add_command men label: "Quit" command: (fun () -> closeTk (); exit 0);
Menubutton.configure meb menu: men;
(* Frames *)
let base2 = Frame.create parent:base () in
let left = Frame.create parent:base2 () in
let right = Frame.create parent:base2 () in
pack [base2];
pack [left; right] side: `Left;
(* Widgets on left and right *)
(* Button *)
let but = Button.create parent: left text: "Welcome to LablTk" () in
(* Canvas *)
let can = Canvas.create parent: left width: (`Pix 100)
height: (`Pix 100) borderwidth: (`Pix 1) relief: `Sunken ()
in
Canvas.create_oval can x1:(`Pix 10) y1:(`Pix 10)
x2:(`Pix 90) y2:(`Pix 90)
fill:`Red;
(* Check button *)
let che = Checkbutton.create parent: left text: "Check" () in
(* Entry *)
let ent = Entry.create parent: left width: 10 () in
(* Label *)
let lab = Label.create parent: left text: "Welcome to LablTk" () in
(* Listbox *)
let lis = Listbox.create parent: left () in
Listbox.insert lis index: `End texts: ["This"; "is"; "Listbox"];
(* Message *)
let mes = Message.create parent: left ()
text: "Hello this is a message widget with very long text, but ..." in
(* Radio buttons *)
let tv = Textvariable.create () in
Textvariable.set tv to: "One";
let radf = Frame.create parent: right () in
let rads = List.map fun:(fun t ->
Radiobutton.create parent: radf text: t value: t variable: tv ())
["One"; "Two"; "Three"] in
(* Scale *)
let sca = Scale.create parent:right label: "Scale" length: (`Pix 100)
showvalue: true () in
(* Text and scrollbar *)
let texf = Frame.create parent:right () in
(* Text *)
let tex = Text.create parent:texf width: 20 height: 8 () in
Text.insert tex text: "This is a text widget." index: (`End,[])
tags: [];
(* Scrollbar *)
let scr = Scrollbar.create parent:texf () in
(* Text and Scrollbar widget link *)
let scroll_link sb tx =
Text.configure tx yscrollcommand: (Scrollbar.set sb);
Scrollbar.configure sb command: (Text.yview tx) in
scroll_link scr tex;
pack [scr] side: `Right fill: `Y;
pack [tex] side: `Left fill: `Both expand: true;
(* Pack them *)
pack [meb] side: `Left;
pack [coe but; coe can; coe che; coe ent; coe lab; coe lis; coe mes];
pack [coe radf; coe sca; coe texf];
pack rads;
(* Toplevel *)
let top2 = Toplevel.create parent:top () in
Wm.title_set top2 title:"LablTk demo control";
let defcol = `Color "#dfdfdf" in
let selcol = `Color "#ffdfdf" in
let buttons =
List.map fun:(fun (w, t, c, a) ->
let b = Button.create parent:top2 text:t command:c () in
bind b events: [[], `Enter]
action:(`Set ([], fun _ -> a selcol));
bind b events: [[], `Leave]
action:(`Set ([], fun _ -> a defcol));
b)
[coe bar, "Frame", (fun () -> ()),
(fun background -> Frame.configure bar :background);
coe meb, "Menubutton", (fun () -> ()),
(fun background -> Menubutton.configure meb :background);
coe but, "Button", (fun () -> ()),
(fun background -> Button.configure but :background);
coe can, "Canvas", (fun () -> ()),
(fun background -> Canvas.configure can :background);
coe che, "CheckButton", (fun () -> ()),
(fun background -> Checkbutton.configure che :background);
coe ent, "Entry", (fun () -> ()),
(fun background -> Entry.configure ent :background);
coe lab, "Label", (fun () -> ()),
(fun background -> Label.configure lab :background);
coe lis, "Listbox", (fun () -> ()),
(fun background -> Listbox.configure lis :background);
coe mes, "Message", (fun () -> ()),
(fun background -> Message.configure mes :background);
coe radf, "Radiobox", (fun () -> ()),
(fun background ->
List.iter rads fun:(fun b -> Radiobutton.configure b :background));
coe sca, "Scale", (fun () -> ()),
(fun background -> Scale.configure sca :background);
coe tex, "Text", (fun () -> ()),
(fun background -> Text.configure tex :background);
coe scr, "Scrollbar", (fun () -> ()),
(fun background -> Scrollbar.configure scr :background)
]
in
pack buttons fill: `X;
(* Main Loop *)
Printexc.print mainLoop ()
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