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|
let u = UTF8.from_utf8string
let redraw t screen =
let screen' =
Screen.draw t screen
|> Screen.draw_input t in
t, screen'
let action f msg (t, screen) = begin
let t', count = f t in
let t', screen' = redraw t' screen in
Screen.status screen' @@ UTF8.from_utf8string (Printf.sprintf msg count);
t', screen'
end
let f screen = ActionParser.(
begin match Screen.read_key screen with
| "\027" -> ESC
| "\001\002" -> DOWN
| "\001\003" -> UP
| "\001\004" -> LEFT
| "\001\005" -> RIGHT
| "\001\006" -> HOME
| "\001\104" -> END
| "\001R" -> NPAGE
| "\001S" -> PPAGE
(* See http://www.ibb.net/~anne/keyboard.html for thoses keycode. *)
| "\001\074"|"\127" -> DELETE
| "e" -> E
| "u" -> U
| "v" -> V
| "y" -> Y
| "p" -> P
| "=" -> EQUAL
| "/" -> SEARCH
| ":" -> COMMAND
| "\001\154" -> RESIZE
| "\001\153" ->
begin match Tools.NCurses.get_mouse_event () with
| None -> raise Not_found
| Some (id, ev, (x, y, z)) ->
if Tools.NCurses.is_event_of_type Tools.NCurses.BUTTON1_CLICKED ev then
BUTTON1_CLICKED(x, y)
else if Tools.NCurses.is_event_of_type Tools.NCurses.BUTTON1_PRESSED ev then
BUTTON1_CLICKED(x, y)
else if Tools.NCurses.is_event_of_type Tools.NCurses.BUTTON1_RELEASED ev then
BUTTON1_RELEASED(x, y)
else
raise Not_found
end
| _ -> raise Not_found
end)
let parser screen = begin
let get_value () = f screen, Lexing.dummy_pos, Lexing.dummy_pos in
MenhirLib.Convert.Simplified.traditional2revised ActionParser.normal get_value
end
let rec normal_mode (t, screen) = begin
match (parser screen) with
| exception x -> normal_mode (t, screen)
| Actions.Visual ->
Screen.status screen @@ u"-- Selection --";
selection_mode (t, screen)
| Actions.Move direction ->
begin match Sheet.move direction t with
| Some t' -> normal_mode @@ redraw t' screen
| None -> normal_mode (t, screen)
end
| Actions.Resize -> normal_mode (t, Screen.resize t screen)
| Actions.Delete ->
let yank_before_delete = fun x -> Sheet.delete (fst (Sheet.yank x)) in
normal_mode @@ action yank_before_delete "Deleted %d cells" (t, screen)
| Actions.Yank ->
normal_mode @@ action Sheet.yank "Yanked %d cells" (t, screen)
| Actions.Paste ->
normal_mode @@ action Sheet.paste "Pasted %d cells" (t, screen)
| Actions.Undo ->
begin match Sheet.undo t with
| Some t' -> normal_mode @@ redraw t' screen
| None -> normal_mode (t, screen)
end
(* Edit a content *)
| Actions.Edit ->
let position = Selection.extract t.Sheet.selected in
let expr = Sheet.Raw.get_expr position t.Sheet.data
|> Expression.show in
begin match Screen.editor ~position ~prefix:(u"-> ") ~init:expr screen with
| None ->
(* Restore the previous value *)
Screen.status screen expr;
normal_mode (t, screen)
| Some content ->
let expr' = Expression.load content in
let _, t' = Sheet.add expr' t in
normal_mode @@ redraw t' screen
end
(* Insert a new formula, the actual value will be erased *)
| Actions.InsertFormula ->
let position = Selection.extract t.Sheet.selected in
begin match Screen.editor ~position ~init:(u"=") screen with
| None ->
(* Restore the previous value *)
let expr = Sheet.Raw.get_expr position t.Sheet.data
|> Expression.show in
Screen.status screen expr;
normal_mode (t, screen)
| Some content ->
let expr = Expression.load content in
let _, t' = Sheet.add expr t in
normal_mode @@ redraw t' screen
end
| Actions.Search ->
let expr = Screen.search screen
|> Expression.load in
let pattern = Expression.eval expr (fun _ -> ScTypes.Refs.Single None) in
begin match Sheet.search (`Pattern (Some pattern)) t with
| Some t' -> normal_mode @@ redraw t' screen
| None -> normal_mode (t, screen)
end
| Actions.Button1_clicked coord ->
begin match Screen.get_cell screen coord with
| None -> normal_mode (t, screen)
| Some (x,y) -> begin match Sheet.move (Actions.Absolute (x,y)) t with
| Some t' -> normal_mode @@ redraw t' screen
| None -> normal_mode (t, screen)
end
end
| Actions.Button1_released coord ->
begin match Screen.get_cell screen coord with
| Some (x,y) when (x,y) <> (Selection.extract t.Sheet.selected) ->
Screen.status screen @@ u"-- Selection -- ";
let t' = { t with
Sheet.selected = Selection.extends (Actions.Absolute (x,y)) t.Sheet.selected
} in
let screen' = Screen.draw t' screen in
selection_mode (t', screen')
| _ -> normal_mode (t, screen)
end
| Actions.Command ->
begin match Screen.editor ~prefix:(u":") screen with
| None ->
normal_mode (t, screen)
| Some content ->
let args = try
UTF8.to_utf8string content
|> Tools.String.split ~by:' '
with Not_found ->
(UTF8.to_utf8string content, "") in
command (t, screen) args
end
| _ -> normal_mode (t, screen)
end
and selection_mode (t, screen) = begin
match (parser screen) with
| exception x -> selection_mode (t, screen)
| Actions.Resize -> selection_mode (t, Screen.resize t screen)
| Actions.Delete ->
let yank_before_delete = fun x -> Sheet.delete (fst (Sheet.yank x)) in
normal_mode @@ action yank_before_delete "Deleted %d cells" (t, screen)
| Actions.Yank ->
normal_mode @@ action Sheet.yank "Yanked %d cells" (t, screen)
| Actions.Escape ->
let t' = { t with Sheet.selected = Selection.create (Selection.extract t.Sheet.selected) } in
let screen' = Screen.draw t' screen
|> Screen.draw_input t' in
Screen.status screen UTF8.empty;
normal_mode (t', screen')
| Actions.Move m ->
let t' = { t with Sheet.selected = Selection.extends m t.Sheet.selected } in
let screen' = Screen.draw t' screen in
selection_mode (t', screen')
| Actions.Button1_clicked coord ->
begin match Screen.get_cell screen coord with
| None -> normal_mode (t, screen)
| Some (x,y) -> begin match Sheet.move (Actions.Absolute (x,y)) t with
| Some t' ->
Screen.status screen UTF8.empty;
normal_mode @@ redraw t' screen
| None -> normal_mode (t, screen)
end
end
| _ -> selection_mode (t, screen)
end
and command (t, screen) action = begin
match action with
| ("w", file) -> (* Save the file *)
Odf.save t.Sheet.data file;
normal_mode @@ redraw t screen
| ("enew", _) -> (* Start a new spreadsheet *)
let sheet = Sheet.Raw.create in
normal_mode @@ redraw (Sheet.create sheet) screen
| ("q", _) -> (* Quit *)
t
| _ -> normal_mode @@ redraw t screen
end
let () = begin
let sheet =
if Array.length Sys.argv = 1 then
Sheet.Raw.create
else
Odf.load Sys.argv.(1) in
Screen.run (fun window ->
ignore @@ normal_mode @@ redraw (Sheet.create sheet) window)
end
|