1355 lines
39 KiB
OCaml
1355 lines
39 KiB
OCaml
open Lwt.Infix
|
|
module Gv = Graphv_gles2_native
|
|
module F = Fmt
|
|
module Str = Re.Str
|
|
|
|
type stroke = { width : float; color : Gv.Color.t }
|
|
|
|
let stroke_none = { width = 0.; color = Gv.Color.transparent }
|
|
|
|
module Margin = struct
|
|
open Gg
|
|
|
|
type t = {
|
|
left : size1;
|
|
right : size1;
|
|
top : size1;
|
|
bottom : size1;
|
|
}
|
|
|
|
let symmetric h w = { left = w; right = w; top = h; bottom = h }
|
|
let sum t : size2 = Size2.v (t.left +. t.right) (t.top +. t.bottom)
|
|
|
|
let inner t b : box2 =
|
|
Box2.v
|
|
(V2.v (Box2.minx b +. t.left) (Box2.miny b +. t.top))
|
|
(V2.v (Box2.maxx b -. t.right) (Box2.maxy b -. t.bottom))
|
|
end
|
|
|
|
type margin = Margin.t
|
|
|
|
let string_of_utf_8_uchar uc =
|
|
Buffer.(
|
|
let b = create 4 in
|
|
add_utf_8_uchar b uc;
|
|
contents b)
|
|
|
|
let pp_uchar : Uchar.t F.t =
|
|
fun ppf u -> F.pf ppf "%s" (string_of_utf_8_uchar u)
|
|
|
|
module Sense = struct
|
|
type t = {
|
|
click : bool;
|
|
drag : bool;
|
|
focusable : bool;
|
|
edit : bool;
|
|
}
|
|
|
|
let click =
|
|
{ click = true; drag = false; focusable = true; edit = false }
|
|
|
|
let hover =
|
|
{ click = false; drag = false; focusable = true; edit = false }
|
|
end
|
|
|
|
module TextBuffer = struct
|
|
type t = {
|
|
mutable path : string list;
|
|
mutable tree : Store.S.tree;
|
|
repo : Store.Sync.db;
|
|
}
|
|
|
|
let of_repo ~path ~(repo : Store.Sync.db) =
|
|
let tree = Lwt_main.run ((fun () -> Store.S.tree repo) ()) in
|
|
{ path; tree; repo }
|
|
|
|
let of_string ~path ?(repo = None) str =
|
|
Store.S.Repo.v (Irmin_mem.config ()) >>= fun repo' ->
|
|
Option.value ~default:Store.S.(empty repo') repo >>= fun repo ->
|
|
Lwt.return { path; tree = Store.S.Tree.singleton path str; repo }
|
|
|
|
let insert_uchar t n uc : t Lwt.t =
|
|
F.epr "TextBuffer.insert_uchar %d %a@." n pp_uchar uc;
|
|
match t with
|
|
| { path; tree; _ } as tt ->
|
|
Store.S.Tree.update tree path (function
|
|
| Some src ->
|
|
assert (n <= String.length src);
|
|
let ucbuf = Bytes.create 8 in
|
|
let uclen = Bytes.set_utf_8_uchar ucbuf 0 uc in
|
|
let dst = Bytes.create (String.length src + uclen) in
|
|
BytesLabels.blit_string ~src ~src_pos:0 ~dst ~dst_pos:0
|
|
~len:n;
|
|
BytesLabels.blit ~src:ucbuf ~src_pos:0 ~dst ~dst_pos:n
|
|
~len:uclen;
|
|
BytesLabels.blit_string ~src ~src_pos:n ~dst
|
|
~dst_pos:(n + uclen)
|
|
~len:(String.length src - (n + uclen));
|
|
Some (Bytes.to_string dst)
|
|
| None -> None)
|
|
>>= fun tree -> Lwt.return { tt with tree }
|
|
|
|
let remove_uchar t n : t Lwt.t =
|
|
F.epr "TextBuffer.remove_subset n=%d @." n;
|
|
match t with
|
|
| { path; tree; _ } as tt ->
|
|
Store.S.Tree.update tree path (function
|
|
| Some src ->
|
|
let srcn = String.length src in
|
|
assert (n < srcn);
|
|
let ucn =
|
|
Uchar.utf_decode_length (String.get_utf_8_uchar src n)
|
|
in
|
|
let dst = Bytes.create (srcn - ucn) in
|
|
Bytes.blit_string src 0 dst 0 n;
|
|
Bytes.blit_string src (n + ucn) dst n (srcn - n - ucn);
|
|
Some (Bytes.to_string dst)
|
|
| v -> v)
|
|
>>= fun tree -> Lwt.return { tt with tree }
|
|
|
|
let fold_string t (f : string -> 'a) : 'a Lwt.t =
|
|
match t with
|
|
| { path; tree; _ } ->
|
|
Store.S.Tree.get tree path >>= fun text -> Lwt.return (f text)
|
|
|
|
let contents { path; tree; _ } =
|
|
(try Store.S.Tree.get tree path with
|
|
| Not_found | Invalid_argument _ ->
|
|
Lwt.return
|
|
@@ F.str
|
|
"print_newline \"/%s: Not_found | Invalid_argument\";;"
|
|
(String.concat "/" path)
|
|
| exc ->
|
|
Lwt.return
|
|
(F.str "Store.S.Tree.get /%s exception: %s"
|
|
(String.concat "/" path)
|
|
(Printexc.to_string exc)))
|
|
>>= fun text -> Lwt.return text
|
|
|
|
let length { path; tree; _ } =
|
|
Store.S.Tree.get tree path >>= fun text ->
|
|
Lwt.return (String.length text)
|
|
end
|
|
|
|
module Event = struct
|
|
type key_action = GLFW.key_action
|
|
type key = GLFW.key
|
|
type key_mod = GLFW.key_mod
|
|
type event = Key of key_action * key * key_mod list
|
|
|
|
(* Stolen from zed_input.ml *)
|
|
module EventMap = Map.Make (struct
|
|
type t = event
|
|
|
|
let compare = compare
|
|
end)
|
|
|
|
type 'a t = 'a node EventMap.t
|
|
and 'a node = Set of 'a t | Val of 'a
|
|
|
|
let empty = EventMap.empty
|
|
|
|
let rec add (events : event list) value set =
|
|
match events with
|
|
| [] -> invalid_arg "Event.add"
|
|
| [ event ] -> EventMap.add event (Val value) set
|
|
| event :: events -> (
|
|
match
|
|
try Some (EventMap.find event set) with Not_found -> None
|
|
with
|
|
| None | Some (Val _) ->
|
|
EventMap.add event (Set (add events value empty)) set
|
|
| Some (Set s) ->
|
|
EventMap.add event (Set (add events value s)) set)
|
|
|
|
let adds (events : event list list) value set =
|
|
List.fold_left (fun s e -> add e value s) set events
|
|
|
|
let rec remove events set =
|
|
match events with
|
|
| [] -> invalid_arg "Event.remove"
|
|
| [ event ] -> EventMap.remove event set
|
|
| event :: events -> (
|
|
match
|
|
try Some (EventMap.find event set) with Not_found -> None
|
|
with
|
|
| None | Some (Val _) -> set
|
|
| Some (Set s) ->
|
|
let s = remove events s in
|
|
if EventMap.is_empty s then EventMap.remove event set
|
|
else EventMap.add event (Set s) set)
|
|
|
|
let fold f set acc =
|
|
let rec loop prefix set acc =
|
|
EventMap.fold
|
|
(fun event node acc ->
|
|
match node with
|
|
| Val v -> f (List.rev (event :: prefix)) v acc
|
|
| Set s -> loop (event :: prefix) s acc)
|
|
set acc
|
|
in
|
|
loop [] set acc
|
|
|
|
let bindings set =
|
|
List.rev
|
|
(fold (fun events action l -> (events, action) :: l) set [])
|
|
|
|
module type Pack = sig
|
|
type a
|
|
type b
|
|
|
|
val set : a t
|
|
val map : a -> b
|
|
end
|
|
|
|
type 'a pack = (module Pack with type b = 'a)
|
|
type 'a resolver = 'a pack list
|
|
|
|
let pack (type u v) map set =
|
|
let module Pack = struct
|
|
type a = u
|
|
type b = v
|
|
|
|
let set = set
|
|
let map = map
|
|
end in
|
|
(module Pack : Pack with type b = v)
|
|
|
|
let resolver l = l
|
|
|
|
type 'a result =
|
|
| Accepted of 'a
|
|
| Continue of 'a resolver
|
|
| Rejected
|
|
|
|
let rec resolve_rec :
|
|
'a. event -> 'a pack list -> 'a pack list -> 'a result =
|
|
fun (type u) event acc packs ->
|
|
match packs with
|
|
| [] -> if acc = [] then Rejected else Continue (List.rev acc)
|
|
| p :: packs -> (
|
|
let module Pack = (val p : Pack with type b = u) in
|
|
match
|
|
try Some (EventMap.find event Pack.set)
|
|
with Not_found -> None
|
|
with
|
|
| Some (Set set) ->
|
|
resolve_rec event (pack Pack.map set :: acc) packs
|
|
| Some (Val v) -> Accepted (Pack.map v)
|
|
| None -> resolve_rec event acc packs)
|
|
|
|
let resolve event sets = resolve_rec event [] sets
|
|
|
|
include Glfw_types
|
|
|
|
let pp_event : event F.t =
|
|
fun ppf e ->
|
|
let open Glfw_types in
|
|
match e with
|
|
| Key (a, k, m) ->
|
|
F.pf ppf "Key %a, %a, %a" pp_key_action a pp_key k pp_mods m
|
|
(* | Char u -> F.pf ppf "Char %a" pp_uchar u
|
|
| AnyChar -> F.pf ppf "AnyChar" *)
|
|
end
|
|
|
|
type event = Event.event
|
|
type id = int
|
|
|
|
module Response = struct
|
|
type t = {
|
|
(* layer_id : LayerId.t; *)
|
|
id : id;
|
|
rect : Gg.box2;
|
|
interact_rect : Gg.box2;
|
|
sense : Sense.t;
|
|
enabled : bool;
|
|
contains_pointer : bool;
|
|
hovered : bool;
|
|
highlighted : bool;
|
|
clicked : bool;
|
|
fake_primary_click : bool;
|
|
long_touched : bool;
|
|
drag_started : bool;
|
|
dragged : bool;
|
|
drag_stopped : bool;
|
|
is_pointer_button_down_on : bool;
|
|
interact_pointer_pos : Gg.p2 option;
|
|
changed : bool;
|
|
}
|
|
end
|
|
|
|
module Align = struct
|
|
open Gg
|
|
|
|
type range = size1 * size1
|
|
|
|
type t =
|
|
| Min (* Left or top. *)
|
|
| Center (* Horizontal or vertical center *)
|
|
| Max (* Right or bottom *)
|
|
|
|
let pp_t ppf =
|
|
F.(
|
|
function
|
|
| Min -> pf ppf "Min"
|
|
| Center -> pf ppf "Center"
|
|
| Max -> pf ppf "Max")
|
|
|
|
let size_within_rect (size : size2) (frame : box2) : box2 =
|
|
let size_within_range (size : size1) (range : range) : range =
|
|
let min, max = range in
|
|
if max -. min == Float.infinity && size == Float.infinity then
|
|
range
|
|
else range
|
|
in
|
|
let x_range =
|
|
size_within_range (P2.x size) (Box2.minx frame, Box2.maxx frame)
|
|
in
|
|
let y_range =
|
|
size_within_range (P2.y size) (Box2.miny frame, Box2.maxy frame)
|
|
in
|
|
Box2.v
|
|
(P2.v (fst x_range) (fst y_range))
|
|
(P2.v (snd x_range) (snd y_range))
|
|
end
|
|
|
|
type align = Align.t
|
|
|
|
module Fonts = struct
|
|
open Gg
|
|
|
|
let pixels_per_point = ref 1.0
|
|
|
|
type t = { gv : Gv.Text.font; pixels_per_point : size1 }
|
|
|
|
let find_font gv name : t option =
|
|
Option.fold
|
|
~some:(fun gv ->
|
|
Some { gv; pixels_per_point = !pixels_per_point })
|
|
~none:None
|
|
(Gv.Text.find_font gv ~name)
|
|
end
|
|
|
|
let pp_color : Gv.Color.t Fmt.t =
|
|
F.(
|
|
record
|
|
[
|
|
field "r" (fun (s : Gv.Color.t) -> s.r) float;
|
|
field "g" (fun (s : Gv.Color.t) -> s.g) float;
|
|
field "b" (fun (s : Gv.Color.t) -> s.b) float;
|
|
field "a" (fun (s : Gv.Color.t) -> s.a) float;
|
|
])
|
|
|
|
module TextLayout = struct
|
|
open Gg
|
|
|
|
type font_selection = Default | FontId of (string * float)
|
|
|
|
type text_format = {
|
|
font_id : font_selection;
|
|
extra_letter_spacing : float;
|
|
line_height : float option;
|
|
color : Gv.Color.t;
|
|
background : Gv.Color.t;
|
|
italics : bool;
|
|
underline : stroke;
|
|
strikethrough : stroke;
|
|
valign : align;
|
|
}
|
|
|
|
let pp_text_format : text_format F.t =
|
|
F.(
|
|
record
|
|
[
|
|
field "font_id" (fun _ -> "...") string;
|
|
field "extra_letter_spacing"
|
|
(fun s -> s.extra_letter_spacing)
|
|
float;
|
|
field "line_height" (fun s -> s.line_height) (option float);
|
|
field "color" (fun s -> s.color) pp_color;
|
|
field "background" (fun s -> s.background) pp_color;
|
|
])
|
|
|
|
let text_format_default =
|
|
{
|
|
font_id = FontId ("mono", 18.0);
|
|
extra_letter_spacing = 0.0;
|
|
line_height = Some 19.;
|
|
color = Gv.Color.rgbf ~r:0.9 ~g:0.9 ~b:0.9;
|
|
background = Gv.Color.transparent;
|
|
italics = false;
|
|
underline = stroke_none;
|
|
strikethrough = stroke_none;
|
|
valign = Max;
|
|
}
|
|
|
|
let text_format_simple font_id color : text_format =
|
|
{ text_format_default with font_id; color }
|
|
|
|
type text_wrapping = {
|
|
max_width : float;
|
|
max_rows : int;
|
|
break_anywhere : bool;
|
|
overflow_character : string option;
|
|
}
|
|
|
|
let pp_text_wrapping =
|
|
F.(
|
|
record
|
|
[
|
|
field "max_width" (fun s -> s.max_width) float;
|
|
field "max_rows" (fun s -> s.max_rows) int;
|
|
field "break_anywhere" (fun s -> s.break_anywhere) bool;
|
|
field "overflow_character"
|
|
(fun s -> s.overflow_character)
|
|
(option string);
|
|
])
|
|
|
|
let default_text_wrapping () =
|
|
{
|
|
max_width = Float.infinity;
|
|
max_rows = 100;
|
|
(* TODO *)
|
|
break_anywhere = false;
|
|
overflow_character = Some "…";
|
|
}
|
|
|
|
type layout_section = {
|
|
leading_space : float;
|
|
byte_range : int * int;
|
|
format : text_format;
|
|
}
|
|
|
|
let pp_layout_section : Format.formatter -> 'a -> unit =
|
|
F.(
|
|
record
|
|
[
|
|
field "leading_space" (fun s -> s.leading_space) float;
|
|
field "byte_range"
|
|
(fun s -> s.byte_range)
|
|
(pair ~sep:(any ",") int int);
|
|
field "format" (fun s -> s.format) pp_text_format;
|
|
])
|
|
|
|
let layout_section_default =
|
|
{
|
|
leading_space = 0.0;
|
|
byte_range = (0, 0);
|
|
format = text_format_default;
|
|
}
|
|
|
|
type layout_job = {
|
|
text : TextBuffer.t;
|
|
sections : layout_section array;
|
|
wrap : text_wrapping;
|
|
first_row_min_height : float;
|
|
break_on_newline : bool;
|
|
halign : align;
|
|
justify : bool;
|
|
line_height : float option;
|
|
}
|
|
|
|
let pp_layout_job =
|
|
F.(
|
|
record
|
|
[
|
|
field "text"
|
|
(fun s -> str "path=%s" (String.concat "/" s.text.path))
|
|
string;
|
|
field "sections"
|
|
(fun s -> s.sections)
|
|
(brackets @@ array pp_layout_section);
|
|
field "wrap" (fun s -> s.wrap) pp_text_wrapping;
|
|
field "first_row_min_height"
|
|
(fun s -> s.first_row_min_height)
|
|
float;
|
|
field "break_on_newline" (fun s -> s.break_on_newline) bool;
|
|
field "halign" (fun s -> s.halign) Align.pp_t;
|
|
field "justify" (fun s -> s.justify) bool;
|
|
])
|
|
|
|
let layout_job_of_text text =
|
|
{
|
|
text;
|
|
sections = Array.make 0 layout_section_default;
|
|
wrap = default_text_wrapping ();
|
|
first_row_min_height = 0.0;
|
|
break_on_newline = true;
|
|
halign = Min;
|
|
justify = false;
|
|
line_height = Some 18.;
|
|
}
|
|
|
|
type uv_rect = {
|
|
offset : Gg.v2;
|
|
size : Gg.v2;
|
|
min : Gg.p2; (* Top left corner UV in texture *)
|
|
max : Gg.p2; (* Bottom right corner (exclusive) *)
|
|
}
|
|
|
|
type glyph = {
|
|
chr : string;
|
|
pos : Gg.p2;
|
|
ascent : float;
|
|
size : Gg.size2;
|
|
uv_rect : uv_rect;
|
|
section_index : int;
|
|
}
|
|
|
|
type row_visuals = {
|
|
(* mesh : mesh; *)
|
|
mesh_bounds : Gg.box2;
|
|
glyph_vertex_range : int * int;
|
|
}
|
|
|
|
let pp_row_visuals =
|
|
F.(
|
|
record
|
|
[
|
|
field "mesh_bounds"
|
|
(fun (s : row_visuals) -> s.mesh_bounds)
|
|
Gg.Box2.pp;
|
|
field "glyph_vertex_range"
|
|
(fun (s : row_visuals) -> s.glyph_vertex_range)
|
|
(pair ~sep:(any ",") int int);
|
|
])
|
|
|
|
let pp_text_row : Format.formatter -> Gv.Text.text_row -> unit =
|
|
F.(
|
|
record
|
|
[
|
|
field "start_index"
|
|
(fun (s : Gv.Text.text_row) -> s.start_index)
|
|
int;
|
|
field "end_index"
|
|
(fun (s : Gv.Text.text_row) -> s.end_index)
|
|
int;
|
|
field "width" (fun (s : Gv.Text.text_row) -> s.width) float;
|
|
field "minx" (fun (s : Gv.Text.text_row) -> s.minx) float;
|
|
field "maxx" (fun (s : Gv.Text.text_row) -> s.maxx) float;
|
|
])
|
|
|
|
type row = {
|
|
text_row : Gv.Text.text_row;
|
|
section_index_at_start : int;
|
|
glyphs : glyph list;
|
|
rect : Gg.box2;
|
|
visuals : row_visuals;
|
|
ends_with_newline : bool;
|
|
}
|
|
|
|
let pp_row : Format.formatter -> row -> unit =
|
|
F.(
|
|
record
|
|
[
|
|
field "text_row" (fun s -> s.text_row) pp_text_row;
|
|
field "section_index_at_start"
|
|
(fun (s : row) -> s.section_index_at_start)
|
|
int;
|
|
field "format" (fun (s : row) -> List.length s.glyphs) int;
|
|
field "rect" (fun (s : row) -> s.rect) Gg.Box2.pp;
|
|
field "visuals" (fun (s : row) -> s.visuals) pp_row_visuals;
|
|
field "ends_with_newline"
|
|
(fun (s : row) -> s.ends_with_newline)
|
|
bool;
|
|
])
|
|
|
|
let row_default () =
|
|
{
|
|
text_row =
|
|
{
|
|
start_index = 0;
|
|
end_index = 0;
|
|
width = 0.;
|
|
minx = 0.;
|
|
maxx = 0.;
|
|
next = 0;
|
|
};
|
|
section_index_at_start = 0;
|
|
glyphs = [];
|
|
rect = Box2.zero;
|
|
visuals =
|
|
{ mesh_bounds = Box2.zero; glyph_vertex_range = (0, 0) };
|
|
ends_with_newline = false;
|
|
}
|
|
|
|
type galley = {
|
|
job : layout_job;
|
|
rows : row array;
|
|
elided : bool;
|
|
rect : Gg.box2;
|
|
mesh_bounds : Gg.box2;
|
|
num_vertices : int;
|
|
num_indices : int;
|
|
pixels_per_point : float;
|
|
}
|
|
|
|
type rich_text = {
|
|
text : string;
|
|
size : float option;
|
|
extra_letter_spacing : float;
|
|
line_height : float option;
|
|
font : string option;
|
|
background_color : Gv.Color.t;
|
|
text_color : Gv.Color.t;
|
|
code : bool;
|
|
strong : bool;
|
|
weak : bool;
|
|
strikethrough : bool;
|
|
underline : bool;
|
|
italics : bool;
|
|
raised : bool;
|
|
}
|
|
|
|
let rich_text_default =
|
|
{
|
|
text = "";
|
|
size = None;
|
|
extra_letter_spacing = 0.0;
|
|
line_height = None;
|
|
font = None;
|
|
background_color = Gv.Color.transparent;
|
|
text_color = Gv.Color.rgbf ~r:0.9 ~g:0.9 ~b:0.9;
|
|
code = false;
|
|
strong = false;
|
|
weak = false;
|
|
strikethrough = false;
|
|
underline = false;
|
|
italics = false;
|
|
raised = false;
|
|
}
|
|
|
|
type widget_text =
|
|
| RichText of rich_text
|
|
| LayoutJob of layout_job
|
|
| Galley of galley
|
|
|
|
type cursor = {
|
|
index : int;
|
|
row : int option;
|
|
last_col : int;
|
|
prefer_next_row : bool;
|
|
}
|
|
|
|
let cursor_default =
|
|
{ index = 0; row = None; last_col = 0; prefer_next_row = false }
|
|
|
|
let cursor ?(row : int option) ?(last_col = 0) index : cursor =
|
|
F.epr "cursor row=%a last_col=%d index=%d@."
|
|
F.(option int)
|
|
row last_col index;
|
|
{ index; row; last_col; prefer_next_row = false }
|
|
|
|
let simple text ?(format = text_format_default) wrap_width :
|
|
layout_job Lwt.t =
|
|
TextBuffer.length text >>= fun textlen ->
|
|
Lwt.return
|
|
{
|
|
(layout_job_of_text text) with
|
|
sections =
|
|
Array.make 1
|
|
{ leading_space = 0.0; byte_range = (0, textlen); format };
|
|
wrap =
|
|
{ (default_text_wrapping ()) with max_width = wrap_width };
|
|
break_on_newline = true;
|
|
}
|
|
|
|
let singleline (text : TextBuffer.t) (format : text_format) :
|
|
layout_job Lwt.t =
|
|
simple text ~format Float.infinity >>= fun simple ->
|
|
Lwt.return
|
|
{
|
|
simple with
|
|
wrap = default_text_wrapping ();
|
|
break_on_newline = true;
|
|
}
|
|
|
|
let cursor_color = ref (Gv.Color.rgbf ~r:0.5 ~g:0.5 ~b:0.)
|
|
|
|
let default_cursor_formatter (f : text_format) =
|
|
{ f with background = !cursor_color }
|
|
|
|
let with_cursor (cur : cursor)
|
|
?(cursor_format = default_cursor_formatter) layout_job :
|
|
layout_job =
|
|
(* this is more like a general range application to layout sections, but i don't need it yet *)
|
|
let cs, ce = (cur.index, cur.index + 1) in
|
|
{
|
|
layout_job with
|
|
sections =
|
|
Array.of_list
|
|
(* Lol maybe this is inefficient? (or maybe not) *)
|
|
(List.fold_left
|
|
(fun (l : layout_section list) sec ->
|
|
let s, e = sec.byte_range in
|
|
|
|
l
|
|
@ (if
|
|
e < cs || ce < s
|
|
(* cursor start is after this section or cursor end is before this section *)
|
|
then [ sec ]
|
|
else [])
|
|
@ (if
|
|
cs > s
|
|
&& cs
|
|
<= e (* if cursor start is in this section *)
|
|
then [ { sec with byte_range = (s, cs) } ]
|
|
else [])
|
|
@ (if
|
|
cs <= e && ce >= s
|
|
(* if cursor start is at or before the end this section and cursor end is at or after the beginning of this section *)
|
|
then
|
|
[
|
|
{
|
|
sec with
|
|
format = cursor_format sec.format;
|
|
byte_range = (max cs s, min ce e);
|
|
};
|
|
]
|
|
else [])
|
|
@
|
|
if
|
|
ce >= s
|
|
&& ce < e (* if cursor end is in this section *)
|
|
then [ { sec with byte_range = (ce, e) } ]
|
|
else [])
|
|
[]
|
|
(Array.to_list layout_job.sections));
|
|
}
|
|
|
|
let layout (gv : Gv.t) (fonts : Fonts.t) (job : layout_job)
|
|
(pos : v2) : galley Lwt.t =
|
|
(* F.epr "TextLayout.layout@.";
|
|
F.epr "job.wrap.max_width=%f@." job.wrap.max_widtha;
|
|
F.epr "job.wrap.max_rows=%d@." job.wrap.max_rows; *)
|
|
if job.wrap.max_rows == 0 then
|
|
Lwt.return
|
|
{
|
|
job;
|
|
rows = Array.make 1 (row_default ());
|
|
rect = Box2.move pos Box2.zero;
|
|
mesh_bounds = Box2.zero;
|
|
elided = true;
|
|
num_vertices = 0;
|
|
num_indices = 0;
|
|
pixels_per_point = fonts.pixels_per_point;
|
|
}
|
|
else
|
|
let metrics = Gv.Text.metrics gv in
|
|
let lines = Gv.Text.make_empty_rows job.wrap.max_rows in
|
|
TextBuffer.contents job.text >>= fun contents ->
|
|
let row_count =
|
|
Gv.Text.break_lines gv ~break_width:job.wrap.max_width
|
|
~max_rows:job.wrap.max_rows ~lines contents
|
|
in
|
|
(* F.epr "row_count=%d@." row_count; *)
|
|
let height = ref (V2.y pos) in
|
|
let max_width = ref 0. in
|
|
let line_height =
|
|
Option.value ~default:metrics.line_height job.line_height
|
|
in
|
|
Lwt.return
|
|
{
|
|
job;
|
|
rows =
|
|
Array.init row_count (fun n ->
|
|
let text_row = Array.get lines n in
|
|
height := !height +. line_height;
|
|
let rect =
|
|
Box2.v
|
|
(P2.v (V2.x pos) !height)
|
|
(P2.v
|
|
(text_row.width +. V2.x pos)
|
|
(!height +. line_height))
|
|
in
|
|
max_width := Float.max text_row.maxx !max_width;
|
|
{
|
|
text_row;
|
|
section_index_at_start = 0;
|
|
glyphs = [ (* TODO *) ];
|
|
rect;
|
|
visuals =
|
|
{
|
|
mesh_bounds = rect;
|
|
glyph_vertex_range =
|
|
(text_row.start_index, text_row.end_index);
|
|
};
|
|
ends_with_newline = false (* TODO *);
|
|
});
|
|
rect =
|
|
Box2.v Size2.zero
|
|
(P2.v job.wrap.max_width
|
|
(Float.of_int row_count *. line_height));
|
|
elided = row_count > job.wrap.max_rows (* TODO *);
|
|
mesh_bounds = Box2.v Size2.zero (P2.v !max_width !height);
|
|
num_indices = 0 (* TODO *);
|
|
num_vertices = 0 (* TODO *);
|
|
pixels_per_point = fonts.pixels_per_point;
|
|
}
|
|
end
|
|
|
|
let rec nth_tl n = function
|
|
| hd :: tl -> if n > 0 then nth_tl (n - 1) tl else hd :: tl
|
|
| [] -> []
|
|
|
|
let _ =
|
|
assert (List.equal Int.equal (nth_tl 2 [ 0; 1; 2; 3 ]) [ 2; 3 ]);
|
|
assert (List.equal Int.equal (nth_tl 3 [ 0; 1; 2 ]) []);
|
|
assert (List.equal Int.equal (nth_tl 0 [ 0; 1 ]) [ 0; 1 ])
|
|
|
|
module Style = struct
|
|
open Gg
|
|
|
|
type text_style = unit
|
|
|
|
type spacing = {
|
|
item_spacing : Gg.size2;
|
|
window_margin : Margin.t;
|
|
indent : Gg.size1;
|
|
interact_size : Gg.size2;
|
|
slider_width : Gg.size1;
|
|
text_edit_width : Gg.size1;
|
|
icon_width : Gg.size1;
|
|
icon_width_inner : Gg.size1;
|
|
icon_spacing : Gg.size1;
|
|
}
|
|
|
|
type t = {
|
|
override_text_style : text_style option;
|
|
override_font : TextLayout.font_selection option;
|
|
wrap : bool option;
|
|
spacing : spacing;
|
|
(*interaction: Interaction.t; *)
|
|
animation_time : float;
|
|
}
|
|
|
|
let default =
|
|
{
|
|
override_text_style = None;
|
|
override_font = None;
|
|
wrap = None;
|
|
spacing =
|
|
{
|
|
item_spacing = Size2.v 10. 10.;
|
|
window_margin = Margin.symmetric 5. 5.;
|
|
indent = 5.;
|
|
slider_width = 5.;
|
|
text_edit_width = 500.;
|
|
icon_width = 40.;
|
|
icon_width_inner = 35.;
|
|
icon_spacing = 50.;
|
|
interact_size = P2.v 500. 500.;
|
|
};
|
|
animation_time = 0.1;
|
|
}
|
|
end
|
|
|
|
module Ui = struct
|
|
type t = {
|
|
mutable rect : Gg.box2;
|
|
style : Style.t;
|
|
enabled : bool;
|
|
gv : Gv.t;
|
|
glfw_window : GLFW.window option;
|
|
mutable bindings : action list Event.t;
|
|
}
|
|
|
|
and action = Custom of (unit -> unit Lwt.t)
|
|
|
|
let id = ref 0
|
|
let spacing ui = ui.style.spacing
|
|
let fonts ui (reader : Gv.t -> 'a) : 'a = reader ui
|
|
|
|
let allocate_space (_gv : Gv.t) (size : Gg.box2) : id * Gg.box2 =
|
|
id := !id + 1;
|
|
(!id, size)
|
|
|
|
let window gv ?(window : GLFW.window option) rect : t =
|
|
{
|
|
rect;
|
|
style = Style.default;
|
|
enabled = true;
|
|
gv;
|
|
glfw_window = window;
|
|
bindings = Event.empty;
|
|
}
|
|
|
|
let callback_resolver : action list Event.resolver option ref =
|
|
ref Option.None
|
|
|
|
let keycallback t (state : Event.key_action) (key : Event.key)
|
|
(mods : Event.key_mod list) : bool Lwt.t =
|
|
let res =
|
|
match !callback_resolver with
|
|
| Some res -> res
|
|
| None -> Event.resolver [ Event.pack Fun.id t.bindings ]
|
|
in
|
|
|
|
Event.(
|
|
F.epr "Ui.keycallback %a %a %a@." pp_key key pp_key_action state
|
|
pp_mods mods);
|
|
match Event.resolve (Key (state, key, mods)) res with
|
|
| Event.Accepted actions ->
|
|
callback_resolver := None;
|
|
let rec exec : action list -> bool Lwt.t = function
|
|
| Custom f :: actions -> f () >>= fun () -> exec actions
|
|
| [] -> Lwt.return false
|
|
in
|
|
exec actions
|
|
| Event.Continue res ->
|
|
callback_resolver := Some res;
|
|
Lwt.return true
|
|
| Event.Rejected ->
|
|
callback_resolver := None;
|
|
Lwt.return false
|
|
|
|
let chrcallback_ref : (Uchar.t -> unit Lwt.t) ref =
|
|
ref (fun c ->
|
|
F.epr "chrcallback: '%a'@." pp_uchar c;
|
|
Lwt.return_unit)
|
|
|
|
let chrcallback _t (chr : int) : unit Lwt.t =
|
|
!chrcallback_ref @@ Uchar.of_int chr
|
|
end
|
|
|
|
module TextEdit = struct
|
|
open Gg
|
|
|
|
type t = {
|
|
mutable text : TextBuffer.t;
|
|
mutable cursor : TextLayout.cursor;
|
|
id : id option;
|
|
id_source : id option;
|
|
text_format : TextLayout.text_format;
|
|
layouter :
|
|
(Ui.t -> TextBuffer.t -> float -> TextLayout.galley) option;
|
|
password : bool;
|
|
frame : bool;
|
|
margin : margin;
|
|
multiline : bool;
|
|
interactive : bool;
|
|
desired_width : float option;
|
|
desired_height_rows : int;
|
|
cursor_at_end : bool;
|
|
min_size : v2;
|
|
align : align;
|
|
clip_text : bool;
|
|
char_limit : int; (* return_key : keyboard_shortcut; *)
|
|
}
|
|
|
|
let col t =
|
|
TextBuffer.fold_string t.text (fun s ->
|
|
Str.search_backward (Str.regexp "^") s t.cursor.index)
|
|
|
|
let cursor_move (t : t) (amt : int) : unit Lwt.t =
|
|
TextBuffer.fold_string t.text (fun s ->
|
|
let index' =
|
|
t.cursor.index + amt |> max 0 |> min (String.length s)
|
|
in
|
|
t.cursor <-
|
|
TextLayout.cursor
|
|
~last_col:
|
|
(index' - Str.search_backward (Str.regexp "^") s index')
|
|
index')
|
|
|
|
let add_bindings (t : t) (ui : Ui.t) : unit Lwt.t =
|
|
let open GLFW in
|
|
let open Event in
|
|
let open Ui in
|
|
ui.bindings <-
|
|
empty
|
|
|> adds
|
|
[
|
|
[ Key (Press, F, [ Control ]) ];
|
|
[ Key (Repeat, F, [ Control ]) ];
|
|
[ Key (Press, Right, []) ];
|
|
[ Key (Repeat, Right, []) ];
|
|
]
|
|
[ Custom (fun () -> cursor_move t 1) ]
|
|
|> adds
|
|
[
|
|
[ Key (Press, B, [ Control ]) ];
|
|
[ Key (Repeat, B, [ Control ]) ];
|
|
[ Key (Press, Left, []) ];
|
|
[ Key (Repeat, Left, []) ];
|
|
]
|
|
[ Custom (fun () -> cursor_move t (-1)) ]
|
|
|> adds
|
|
[
|
|
[ Key (Press, N, [ Control ]) ];
|
|
[ Key (Repeat, N, [ Control ]) ];
|
|
[ Key (Press, Down, []) ];
|
|
[ Key (Repeat, Down, []) ];
|
|
]
|
|
[
|
|
Custom
|
|
(fun () ->
|
|
TextBuffer.fold_string t.text (fun s ->
|
|
let sn = String.length s in
|
|
let seol = Str.search_forward (Str.regexp "$") in
|
|
let next_bol =
|
|
min sn (seol s t.cursor.index + 1)
|
|
in
|
|
let next_line_len = seol s next_bol - next_bol in
|
|
(* F.epr
|
|
"Down: index=%d last_col=%d eol=%d eol'=%d \
|
|
bol=%d @."
|
|
t.cursor.index last_col eol' bol; *)
|
|
t.cursor <-
|
|
{
|
|
t.cursor with
|
|
index =
|
|
(next_bol
|
|
+
|
|
if t.cursor.last_col > next_line_len then
|
|
next_line_len
|
|
else min next_line_len t.cursor.last_col);
|
|
}));
|
|
]
|
|
|> adds
|
|
[
|
|
[ Key (Press, P, [ Control ]) ];
|
|
[ Key (Repeat, P, [ Control ]) ];
|
|
[ Key (Press, Up, []) ];
|
|
[ Key (Repeat, Up, []) ];
|
|
]
|
|
[
|
|
Custom
|
|
(fun () ->
|
|
TextBuffer.fold_string t.text (fun s ->
|
|
let sbol =
|
|
Str.search_backward (Str.regexp "^") s
|
|
in
|
|
let bol = sbol t.cursor.index in
|
|
if bol > 0 then (
|
|
let prev_bol = sbol (max 0 (bol - 1)) in
|
|
let prev_line_len = bol - 1 - prev_bol in
|
|
F.epr
|
|
"up: index=%d bol=%d prev_bol=%d \
|
|
prev_line_len=%d @."
|
|
t.cursor.index bol prev_bol prev_line_len;
|
|
t.cursor <-
|
|
{
|
|
t.cursor with
|
|
index =
|
|
(prev_bol
|
|
+
|
|
if t.cursor.last_col > prev_line_len then
|
|
prev_line_len
|
|
else min prev_line_len t.cursor.last_col
|
|
);
|
|
})));
|
|
]
|
|
|> adds (* EOL *)
|
|
[
|
|
[ Key (Press, E, [ Control ]) ]; [ Key (Press, End, []) ];
|
|
]
|
|
[
|
|
Custom
|
|
(fun () ->
|
|
TextBuffer.fold_string t.text (fun s ->
|
|
let bol =
|
|
Str.search_backward (Str.regexp "^") s
|
|
t.cursor.index
|
|
in
|
|
let eol =
|
|
Str.search_forward (Str.regexp "$") s
|
|
t.cursor.index
|
|
in
|
|
t.cursor <-
|
|
TextLayout.cursor ~last_col:(eol - bol) eol));
|
|
]
|
|
|> adds (* BOL *)
|
|
[
|
|
[ Key (Press, A, [ Control ]) ];
|
|
[ Key (Press, Home, []) ];
|
|
]
|
|
[
|
|
Custom
|
|
(fun () ->
|
|
TextBuffer.fold_string t.text (fun s ->
|
|
t.cursor <-
|
|
TextLayout.cursor ~last_col:0
|
|
(Str.search_backward (Str.regexp "^") s
|
|
t.cursor.index)));
|
|
]
|
|
|> adds
|
|
[
|
|
[ Key (Press, Backspace, []) ];
|
|
[ Key (Repeat, Backspace, []) ];
|
|
]
|
|
[
|
|
Custom
|
|
(fun () ->
|
|
if t.cursor.index > 0 then (
|
|
TextBuffer.remove_uchar t.text (t.cursor.index - 1)
|
|
>>= fun text ->
|
|
t.text <- text;
|
|
cursor_move t (-1))
|
|
else Lwt.return_unit);
|
|
]
|
|
|> adds
|
|
[ [ Key (Press, Enter, []) ]; [ Key (Repeat, Enter, []) ] ]
|
|
[
|
|
Custom
|
|
(fun () ->
|
|
TextBuffer.insert_uchar t.text t.cursor.index
|
|
(Uchar.of_char '\n')
|
|
>>= fun text ->
|
|
t.text <- text;
|
|
cursor_move t 1);
|
|
];
|
|
|
|
(* WARN XXX TKTK TODO this is probably "breaking" the lwt context and being used in other calls to Lwt_main.run *)
|
|
(Ui.chrcallback_ref :=
|
|
fun c ->
|
|
TextBuffer.insert_uchar t.text t.cursor.index c
|
|
>>= fun text ->
|
|
t.text <- text;
|
|
cursor_move t 1
|
|
(* This creates a giant stack of calls lol
|
|
>>= fun () -> !Ui.chrcallback_ref c *));
|
|
Lwt.return_unit
|
|
|
|
let multiline ui ?(text_format = TextLayout.text_format_default)
|
|
(text : TextBuffer.t) : t =
|
|
let t =
|
|
{
|
|
text;
|
|
cursor = TextLayout.cursor 0;
|
|
id = None;
|
|
id_source = None;
|
|
text_format;
|
|
layouter = None;
|
|
password = false;
|
|
frame = true;
|
|
margin = Margin.symmetric 4.0 2.0;
|
|
multiline = true;
|
|
interactive = true;
|
|
desired_width = None;
|
|
desired_height_rows = 4;
|
|
cursor_at_end = true;
|
|
min_size = Gg.V2.zero;
|
|
align = Min;
|
|
clip_text = false;
|
|
char_limit = Int.max_int;
|
|
(* return_key = keyboard_shortcut; *)
|
|
}
|
|
in
|
|
Lwt_main.run (add_bindings t ui);
|
|
t
|
|
|
|
(*
|
|
let show_content (t : t) (ui : Ui.t) : output =
|
|
let state = load_state (Option.value ~default:(-1) t.id) in
|
|
Lwt_main.run (add_bindings t ui state);
|
|
let origin = Ui.cursor_origin ui in
|
|
(* TODO .or(ui.visuals().override_text_color) *)
|
|
(* let row_height = (Gv.Text.metrics ui.gv).line_height in *)
|
|
let available_width =
|
|
Ui.available_width ui -. (t.margin.left +. t.margin.right)
|
|
in
|
|
let desired_width =
|
|
Option.fold ~none:(Ui.spacing ui).text_edit_width ~some:Fun.id
|
|
t.desired_width
|
|
in
|
|
let wrap_width =
|
|
if Layout.horizontal_justify ui.placer.layout then
|
|
available_width
|
|
else Float.min desired_width available_width
|
|
in
|
|
let galley_size = galley.mesh_bounds in
|
|
let desired_width =
|
|
if t.clip_text then wrap_width
|
|
else Float.max (Size2.w (Box2.size galley_size)) wrap_width
|
|
in
|
|
let desired_inner_size =
|
|
V2.v desired_width (Box2.maxy galley_size)
|
|
in
|
|
let desired_outer_size =
|
|
V2.(desired_inner_size + Margin.sum t.margin)
|
|
in
|
|
let (_auto_id, outer_rect) : id * box2 =
|
|
Ui.allocate_space ui.gv (Box2.v origin desired_outer_size)
|
|
in
|
|
let rect = Margin.inner t.margin outer_rect in
|
|
(* TODO id = ui.make_persistent_id(id_source) else auto_id *)
|
|
(* TODO state = TextEditState::load(ui.ctx(), id)... *)
|
|
(* TODO moved up let state = load_state (Option.value ~default:(-1) t.id) in *)
|
|
(* TODO allow_drag_to_select = ... *)
|
|
let _sense = if t.interactive then Sense.click else Sense.hover in
|
|
|
|
(* let response = Ui.interact ui outer_rect t.id sense in *)
|
|
(* TODO *)
|
|
let text_clip_rect = rect in
|
|
(* let painter = Ui.painter_at ui text_clip_rect in *)
|
|
let cursor_range = None in
|
|
(* TODO cursor_range *)
|
|
let galley_pos =
|
|
Align.size_within_rect (Box2.size galley_size) rect
|
|
in
|
|
|
|
(* if Ui.is_rect_visible ui rect then *)
|
|
(* Painter.galley ui.gv galley; *)
|
|
let _align_offset = rect in
|
|
{
|
|
galley;
|
|
galley_pos = Box2.o galley_pos;
|
|
text_clip_rect;
|
|
state;
|
|
cursor_range;
|
|
}
|
|
let show (t : t) ui : output =
|
|
let _margin = t.margin in
|
|
let output = show_content t ui in
|
|
(* let _outer_rect = output.response.rect in *)
|
|
output
|
|
*)
|
|
end
|
|
|
|
module Layout = struct
|
|
open Gg
|
|
|
|
type frame = { t : t; mutable size : size }
|
|
|
|
and t =
|
|
[ `Box of [ `H | `V | `Z ] * frame list
|
|
| `String of string
|
|
| `Buffer of TextBuffer.t
|
|
| `TextEdit of TextEdit.t
|
|
| `None ]
|
|
|
|
and size =
|
|
[ `Fixed of p2 | `Percent (* of container *) of p2 | `Auto ]
|
|
|
|
let frame ?(size = `Auto) t : frame = { t; size }
|
|
let box d t = frame (`Box (d, t))
|
|
let hbox, vbox, zbox = (box `H, box `V, box `Z)
|
|
|
|
let pp_t_frame ppf f =
|
|
F.pf ppf "%s"
|
|
(match f with
|
|
| `Hbox -> "`Hbox"
|
|
| `Vbox -> "`Vbox"
|
|
| `Buffer -> "`Buffer"
|
|
| `TextEdit -> "`TextEdit"
|
|
| `S s -> F.str "%s" s
|
|
| `None -> "`None")
|
|
|
|
let parse_t_frame s =
|
|
match s with
|
|
| "`Box" -> `Vbox
|
|
| "`Buffer" -> `Buffer
|
|
| "`TextEdit" -> `TextEdit
|
|
| "`None" -> `None
|
|
| s -> `S s
|
|
end
|
|
|
|
module Painter = struct
|
|
open Layout
|
|
open Gg
|
|
|
|
let paint_galley (t : Gv.t) (g : TextLayout.galley) : box2 Lwt.t =
|
|
(* F.epr
|
|
"Painter.galley (String.length g.job.text)=%d (Array.length \
|
|
g.rows)=%d @."
|
|
(Lwt_main.run (TextBuffer.length g.job.text))
|
|
(Array.length g.rows);
|
|
F.epr "g.job=%a@." TextLayout.pp_layout_job g.job;
|
|
F.epr "g.rows=%a@." F.(braces (array TextLayout.pp_row)) g.rows; *)
|
|
TextBuffer.contents g.job.text >>= fun contents ->
|
|
let contents_len = String.length contents in
|
|
g.rows
|
|
|> Array.fold_left
|
|
(fun (br : box2) (row : TextLayout.row) ->
|
|
let sections =
|
|
List.filter
|
|
(fun (r : TextLayout.layout_section) ->
|
|
fst r.byte_range <= row.text_row.end_index
|
|
&& snd r.byte_range > row.text_row.start_index)
|
|
(Array.to_list
|
|
@@ Array.sub g.job.sections row.section_index_at_start
|
|
(Array.length g.job.sections
|
|
- row.section_index_at_start))
|
|
in
|
|
assert (List.length sections > 0);
|
|
|
|
ignore
|
|
(List.fold_left
|
|
(fun x (sec : TextLayout.layout_section) ->
|
|
let start, end_ =
|
|
( min (contents_len - 1)
|
|
(max 0
|
|
(max (fst sec.byte_range)
|
|
row.text_row.start_index)),
|
|
min (contents_len - 1)
|
|
(max 0
|
|
(min (snd sec.byte_range)
|
|
row.text_row.end_index)) )
|
|
in
|
|
|
|
let font_name, font_size =
|
|
match sec.format.font_id with
|
|
| Default -> ("mono", 18.)
|
|
| FontId (s, size) -> (s, size)
|
|
in
|
|
let open Gv in
|
|
Text.set_font_face t ~name:font_name;
|
|
Text.set_size t ~size:font_size;
|
|
Text.set_align t ~align:Align.(left lor top);
|
|
let metrics = Gv.Text.metrics t in
|
|
let bounds =
|
|
Gv.Text.bounds t ~x ~y:0. ~start ~end_ contents
|
|
in
|
|
Path.begin_ t;
|
|
Path.rect t ~x ~y:(Box2.miny row.rect)
|
|
~w:bounds.advance ~h:metrics.line_height;
|
|
set_fill_color t ~color:sec.format.background;
|
|
fill t;
|
|
|
|
set_fill_color t ~color:sec.format.color;
|
|
Text.text_w t ~x ~y:(Box2.miny row.rect) ~start
|
|
~end_ contents)
|
|
(Box2.minx row.rect) sections);
|
|
Box2.(union br row.rect))
|
|
Box2.empty
|
|
|> Lwt.return
|
|
|
|
let rec layout (box : box2) (ui : Ui.t) (frame : frame) : box2 Lwt.t
|
|
=
|
|
match frame.t with
|
|
| `Box (dir, ll) ->
|
|
Lwt_list.fold_left_s
|
|
(fun (o : box2) f ->
|
|
layout
|
|
(match dir with
|
|
| `H ->
|
|
Box2.of_pts
|
|
V2.(v (Box2.minx o) (Box2.miny box))
|
|
(Box2.br_pt o)
|
|
| `V ->
|
|
Box2.of_pts
|
|
V2.(v (Box2.minx box) (Box2.miny o))
|
|
(Box2.br_pt o)
|
|
| `Z -> box)
|
|
ui f)
|
|
box ll
|
|
| `TextEdit t ->
|
|
let font =
|
|
match Gv.Text.find_font ui.gv ~name:"mono" with
|
|
| Some gv -> Fonts.{ gv; pixels_per_point = 1.0 }
|
|
| None -> failwith "can't find font 'mono'"
|
|
in
|
|
(if t.multiline then
|
|
TextLayout.simple t.text ~format:t.text_format
|
|
(Option.value ~default:(Box2.w box) t.desired_width)
|
|
else TextLayout.singleline t.text t.text_format)
|
|
>>= fun layout_job ->
|
|
Ui.fonts ui.gv (fun f ->
|
|
TextLayout.layout f font
|
|
(TextLayout.with_cursor t.cursor layout_job)
|
|
(Box2.o box))
|
|
>>= fun galley -> paint_galley ui.gv galley
|
|
| _ -> Lwt.return box
|
|
end
|