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|
(**************************************************************************)
(* Lablgtk - Examples *)
(* *)
(* This code is in the public domain. *)
(* You may freely copy parts of it in your application. *)
(* *)
(**************************************************************************)
(* this is a translation in Caml of the gtk+ example testdnd.c *)
open Gaux
open Gtk
open GObj
(* GtkThread.start() *)
let _ = GMain.init ()
let drag_icon_xpm = [|
"36 48 9 1";
" c None";
". c #020204";
"+ c #8F8F90";
"@ c #D3D3D2";
"# c #AEAEAC";
"$ c #ECECEC";
"% c #A2A2A4";
"& c #FEFEFC";
"* c #BEBEBC";
" .....................";
" ..&&&&&&&&&&&&&&&&&&&.";
" ...&&&&&&&&&&&&&&&&&&&.";
" ..&.&&&&&&&&&&&&&&&&&&&.";
" ..&&.&&&&&&&&&&&&&&&&&&&.";
" ..&&&.&&&&&&&&&&&&&&&&&&&.";
" ..&&&&.&&&&&&&&&&&&&&&&&&&.";
" ..&&&&&.&&&@&&&&&&&&&&&&&&&.";
" ..&&&&&&.*$%$+$&&&&&&&&&&&&&.";
" ..&&&&&&&.%$%$+&&&&&&&&&&&&&&.";
" ..&&&&&&&&.#&#@$&&&&&&&&&&&&&&.";
" ..&&&&&&&&&.#$**#$&&&&&&&&&&&&&.";
" ..&&&&&&&&&&.&@%&%$&&&&&&&&&&&&&.";
" ..&&&&&&&&&&&.&&&&&&&&&&&&&&&&&&&.";
" ..&&&&&&&&&&&&.&&&&&&&&&&&&&&&&&&&.";
"................&$@&&&@&&&&&&&&&&&&.";
".&&&&&&&+&&#@%#+@#@*$%$+$&&&&&&&&&&.";
".&&&&&&&+&&#@#@&&@*%$%$+&&&&&&&&&&&.";
".&&&&&&&+&$%&#@&#@@#&#@$&&&&&&&&&&&.";
".&&&&&&@#@@$&*@&@#@#$**#$&&&&&&&&&&.";
".&&&&&&&&&&&&&&&&&&&@%&%$&&&&&&&&&&.";
".&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&.";
".&&&&&&&&$#@@$&&&&&&&&&&&&&&&&&&&&&.";
".&&&&&&&&&+&$+&$&@&$@&&$@&&&&&&&&&&.";
".&&&&&&&&&+&&#@%#+@#@*$%&+$&&&&&&&&.";
".&&&&&&&&&+&&#@#@&&@*%$%$+&&&&&&&&&.";
".&&&&&&&&&+&$%&#@&#@@#&#@$&&&&&&&&&.";
".&&&&&&&&@#@@$&*@&@#@#$#*#$&&&&&&&&.";
".&&&&&&&&&&&&&&&&&&&&&$%&%$&&&&&&&&.";
".&&&&&&&&&&$#@@$&&&&&&&&&&&&&&&&&&&.";
".&&&&&&&&&&&+&$%&$$@&$@&&$@&&&&&&&&.";
".&&&&&&&&&&&+&&#@%#+@#@*$%$+$&&&&&&.";
".&&&&&&&&&&&+&&#@#@&&@*#$%$+&&&&&&&.";
".&&&&&&&&&&&+&$+&*@&#@@#&#@$&&&&&&&.";
".&&&&&&&&&&$%@@&&*@&@#@#$#*#&&&&&&&.";
".&&&&&&&&&&&&&&&&&&&&&&&$%&%$&&&&&&.";
".&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&.";
".&&&&&&&&&&&&&&$#@@$&&&&&&&&&&&&&&&.";
".&&&&&&&&&&&&&&&+&$%&$$@&$@&&$@&&&&.";
".&&&&&&&&&&&&&&&+&&#@%#+@#@*$%$+$&&.";
".&&&&&&&&&&&&&&&+&&#@#@&&@*#$%$+&&&.";
".&&&&&&&&&&&&&&&+&$+&*@&#@@#&#@$&&&.";
".&&&&&&&&&&&&&&$%@@&&*@&@#@#$#*#&&&.";
".&&&&&&&&&&&&&&&&&&&&&&&&&&&$%&%$&&.";
".&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&.";
".&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&.";
".&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&.";
"...................................." |]
let trashcan_closed_xpm = [|
"64 80 17 1";
" c None";
". c #030304";
"+ c #5A5A5C";
"@ c #323231";
"# c #888888";
"$ c #1E1E1F";
"% c #767677";
"& c #494949";
"* c #9E9E9C";
"= c #111111";
"- c #3C3C3D";
"; c #6B6B6B";
"> c #949494";
", c #282828";
"' c #808080";
") c #545454";
"! c #AEAEAC";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ==......=$$...=== ";
" ..$------)+++++++++++++@$$... ";
" ..=@@-------&+++++++++++++++++++-.... ";
" =.$$@@@-&&)++++)-,$$$$=@@&+++++++++++++,..$ ";
" .$$$$@@&+++++++&$$$@@@@-&,$,-++++++++++;;;&.. ";
" $$$$,@--&++++++&$$)++++++++-,$&++++++;%%'%%;;$@ ";
" .-@@-@-&++++++++-@++++++++++++,-++++++;''%;;;%*-$ ";
" +------++++++++++++++++++++++++++++++;;%%%;;##*!. ";
" =+----+++++++++++++++++++++++;;;;;;;;;;;;%'>>). ";
" .=)&+++++++++++++++++;;;;;;;;;;;;;;%''>>#>#@. ";
" =..=&++++++++++++;;;;;;;;;;;;;%###>>###+%== ";
" .&....=-+++++%;;####''''''''''##'%%%)..#. ";
" .+-++@....=,+%#####'%%%%%%%%%;@$-@-@*++!. ";
" .+-++-+++-&-@$$=$=......$,,,@;&)+!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" =+-++-+++-+++++++++!++++!++++!+++!++!+++= ";
" $.++-+++-+++++++++!++++!++++!+++!++!+.$ ";
" =.++++++++++++++!++++!++++!+++!++.= ";
" $..+++++++++++++++!++++++...$ ";
" $$=.............=$$ ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" " |]
let trashcan_open_xpm = [|
"64 80 17 1";
" c None";
". c #030304";
"+ c #5A5A5C";
"@ c #323231";
"# c #888888";
"$ c #1E1E1F";
"% c #767677";
"& c #494949";
"* c #9E9E9C";
"= c #111111";
"- c #3C3C3D";
"; c #6B6B6B";
"> c #949494";
", c #282828";
"' c #808080";
") c #545454";
"! c #AEAEAC";
" ";
" ";
" ";
" ";
" ";
" ";
" .=.==.,@ ";
" ==.,@-&&&)-= ";
" .$@,&++;;;%>*- ";
" $,-+)+++%%;;'#+. ";
" =---+++++;%%%;%##@. ";
" @)++++++++;%%%%'#%$ ";
" $&++++++++++;%%;%##@= ";
" ,-++++)+++++++;;;'#%) ";
" @+++&&--&)++++;;%'#'-. ";
" ,&++-@@,,,,-)++;;;'>'+, ";
" =-++&@$@&&&&-&+;;;%##%+@ ";
" =,)+)-,@@&+++++;;;;%##%&@ ";
" @--&&,,@&)++++++;;;;'#)@ ";
" ---&)-,@)+++++++;;;%''+, ";
" $--&)+&$-+++++++;;;%%'';- ";
" .,-&+++-$&++++++;;;%''%&= ";
" $,-&)++)-@++++++;;%''%), ";
" =,@&)++++&&+++++;%'''+$@&++++++ ";
" .$@-++++++++++++;'#';,........=$@&++++ ";
" =$@@&)+++++++++++'##-.................=&++ ";
" .$$@-&)+++++++++;%#+$.....................=)+ ";
" $$,@-)+++++++++;%;@=........................,+ ";
" .$$@@-++++++++)-)@=............................ ";
" $,@---)++++&)@===............................,. ";
" $-@---&)))-$$=..............................=)!. ";
" --&-&&,,$=,==...........................=&+++!. ";
" =,=$..=$+)+++++&@$=.............=$@&+++++!++!. ";
" .)-++-+++++++++++++++++++++++++++!++!++!. ";
" .+-++-+++++++++++++++++++++++!+++!++!++!. ";
" .+-++-+++-+++++++++!+++!!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" .+-++-+++-+++++++++!++++!++++!+++!++!++!. ";
" =+-++-+++-+++++++++!++++!++++!+++!++!+++= ";
" $.++-+++-+++++++++!++++!++++!+++!++!+.$ ";
" =.++++++++++++++!++++!++++!+++!++.= ";
" $..+++++++++++++++!++++++...$ ";
" $$==...........==$$ ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" ";
" " |]
let window = GWindow.window ~title:"DnD Test" ()
let _ = window#misc#realize ()
let drag_icon =
GDraw.pixmap_from_xpm_d ~data:drag_icon_xpm ~window ()
let trashcan_open =
GDraw.pixmap_from_xpm_d ~data:trashcan_open_xpm ~window ()
let trashcan_closed =
GDraw.pixmap_from_xpm_d ~data:trashcan_closed_xpm ~window ()
let targets = [
{ target = "STRING"; flags = []; info = 0};
{ target = "text/plain"; flags = []; info = 0};
{ target = "text/uri-list"; flags = []; info = 2};
{ target = "application/x-rootwin-drop"; flags = []; info = 1}
]
class drag_handler = object
method private beginning (_ : drag_context) = ()
method private data_delete (_ : drag_context) = ()
method private data_get (_ : drag_context) (_ : selection_context)
~(info : int) ~(time : int32) = ()
method private data_received (_ : drag_context) ~(x : int) ~(y : int)
(_ : selection_data) ~(info : int) ~(time : int32) = ()
method private drop (_ : drag_context) ~(x : int) ~(y : int)
~(time : int32) = false
method private ending (_ : drag_context) = ()
method private leave (_ : drag_context) ~(time : int32) = ()
method private motion (_ : drag_context) ~(x : int) ~(y : int)
~(time : int32) = false
end
class target_drag ?packing ?show () =
let pixmap = GMisc.pixmap trashcan_closed ?packing ?show () in
object (self)
inherit widget pixmap#as_widget
inherit drag_handler
val mutable have_drag = false
method leave _ ~time =
print_endline "leave"; flush stdout;
have_drag <- false;
pixmap#set_pixmap trashcan_closed
method motion context ~x ~y ~time =
if not have_drag then begin
have_drag <- true;
pixmap#set_pixmap trashcan_open
end;
let source_typename =
try
context#source_widget#misc#get_type
with Gpointer.Null -> "unknown"
in
Printf.printf "motion, source %s\n" source_typename; flush stdout;
context#status (Some context#suggested_action) ~time;
true
method drop context ~x ~y ~time =
prerr_endline "drop"; flush stdout;
have_drag <- false;
pixmap#set_pixmap trashcan_closed;
match context#targets with
| [] -> false
| d :: _ -> pixmap#drag#get_data ~target:d ~time context; true
method data_received context ~x ~y data ~info ~time =
if data#format = 8 then begin
Printf.printf "Received \"%s\" in trashcan\n" data#data;
flush stdout;
context#finish ~success:true ~del:false ~time
end
else context#finish ~success:false ~del:false ~time
initializer
pixmap#drag#dest_set targets ~actions:[`COPY;`MOVE];
pixmap#drag#connect#leave ~callback:self#leave;
pixmap#drag#connect#motion ~callback:self#motion;
pixmap#drag#connect#drop ~callback:self#drop;
pixmap#drag#connect#data_received ~callback:self#data_received;
()
end
class label_drag ?packing ?show () =
let label = GMisc.label ~text:"Drop Here\n" ?packing ?show () in
object (self)
inherit widget label#as_widget
inherit drag_handler
method data_received context ~x ~y data ~info ~time =
if data#format = 8 then begin
Printf.printf "Received \"%s\" in label\n" data#data;
flush stdout;
context#finish ~success:true ~del:false ~time
end
else context#finish ~success:false ~del:false ~time
initializer
label#drag#dest_set targets ~actions:[`COPY; `MOVE ];
label#drag#connect#data_received ~callback:self#data_received;
()
end
class source_drag ?packing ?show () =
let button = GButton.button ~label:"Drag Here\n" ?packing ?show () in
object (self)
inherit widget button#as_widget
inherit drag_handler
method data_get _ sel ~info ~time =
if info = 1 then begin
print_endline "I was dropped on the rootwin"; flush stdout
end
else if info = 2 then
sel#return "file:///home/otaylor/images/weave.png"
else
sel#return "I'm Data!"
method data_delete _ =
print_endline "Delete the data!"; flush stdout
initializer
button#drag#source_set targets
~modi:[`BUTTON1; `BUTTON3 ] ~actions:[`COPY; `MOVE ];
button#drag#source_set_icon drag_icon;
button#drag#connect#data_get ~callback:self#data_get;
button#drag#connect#data_delete ~callback:self#data_delete;
()
end
class popup () = object (self)
inherit drag_handler
val mutable popup_window = (None : #GWindow.window option)
val mutable popped_up = false
val mutable in_popup = false
val mutable popdown_timer = None
val mutable popup_timer = None
method timer = popup_timer
method remove_timer () =
may popup_timer
~f:(fun pdt -> Timeout.remove pdt; popup_timer <- None)
method add_timer time ~callback =
popup_timer <- Some (Timeout.add ~ms:time ~callback)
method popdown () =
popdown_timer <- None;
may popup_window ~f:(fun w -> w#misc#hide ());
popped_up <- false;
false
method motion (_ : drag_context) ~x ~y ~time =
if not in_popup then begin
in_popup <- true;
may popdown_timer ~f:
begin fun pdt ->
print_endline "removed popdown"; flush stdout;
Timeout.remove pdt;
popdown_timer <- None
end
end;
true
method leave (_ : drag_context) ~time =
if in_popup then begin
in_popup <- false;
if popdown_timer = None then begin
print_endline "added popdown"; flush stdout;
popdown_timer <- Some (Timeout.add ~ms:500 ~callback:self#popdown)
end
end
method popup () =
if not popped_up then begin
if popup_window = None then begin
let w = GWindow.window ~kind:`POPUP ~position:`MOUSE () in
popup_window <- Some w;
let table = GPack.table ~rows:3 ~columns:3 ~packing:w#add () in
for i = 0 to 2 do
for j = 0 to 2 do
let button =
GButton.button ~label:(string_of_int i ^ "," ^ string_of_int j)
~packing:(table#attach ~left:i ~top:j ~expand:`BOTH) ()
in
button#drag#dest_set targets ~actions:[`COPY; `MOVE ];
button#drag#connect#motion ~callback:self#motion;
button#drag#connect#leave ~callback:self#leave;
done
done
end;
may popup_window ~f:(fun w -> w#show ());
popped_up <- true
end;
popdown_timer <- Some (Timeout.add ~ms:500 ~callback:self#popdown);
print_endline "added popdown"; flush stdout;
self#remove_timer ();
false
end
class popsite ?packing ?show () =
let label = GMisc.label ~text:"Popup\n" ?packing ?show ()
and popup = new popup () in
object (self)
inherit widget label#as_widget
inherit drag_handler
method motion _ ~x ~y ~time =
if popup#timer = None then begin
print_endline "added popdown"; flush stdout;
popup#add_timer 500 ~callback:popup#popup
end;
true
method leave _ ~time =
popup#remove_timer ()
initializer
label#drag#dest_set targets ~actions:[`COPY; `MOVE ];
label#drag#connect#motion ~callback:self#motion;
label#drag#connect#leave ~callback:self#leave;
()
end
let main () =
window#connect#destroy ~callback: GMain.quit;
let table = GPack.table ~rows:2 ~columns:2 ~packing:window#add () in
let attach = table#attach ~expand:`BOTH in
new label_drag ~packing:(attach ~left:0 ~top:0) ();
new target_drag ~packing:(attach ~left:1 ~top:0) ();
new source_drag ~packing:(attach ~left:0 ~top:1) ();
new popsite ~packing:(attach ~left:1 ~top:1) ();
window#show ();
GMain.main ()
let _ =
main ()
|
