1025 lines
27 KiB
OCaml
1025 lines
27 KiB
OCaml
module Gv = Graphv_gles2_native
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module F = Fmt
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type stroke = { width : float; color : Gv.Color.t }
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let stroke_none = { width = 0.; color = Gv.Color.transparent }
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module Margin = struct
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open Gg
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type t = {
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left : size1;
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right : size1;
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top : size1;
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bottom : size1;
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}
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let symmetric h w = { left = w; right = w; top = h; bottom = h }
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let sum t : size2 = Size2.v (t.left +. t.right) (t.top +. t.bottom)
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let inner t b : box2 =
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Box2.v
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(V2.v (Box2.minx b +. t.left) (Box2.miny b +. t.top))
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(V2.v (Box2.maxx b -. t.right) (Box2.maxy b -. t.bottom))
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end
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type margin = Margin.t
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module Sense = struct
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type t = {
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click : bool;
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drag : bool;
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focusable : bool;
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edit : bool;
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}
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let click =
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{ click = true; drag = false; focusable = true; edit = false }
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let hover =
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{ click = false; drag = false; focusable = true; edit = false }
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end
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module EventFilter = struct
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type t = {
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tab : bool;
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horizontal_arrrows : bool;
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vertical_arrows : bool;
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escape : bool;
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}
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let default =
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{
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tab = false;
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horizontal_arrrows = false;
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vertical_arrows = false;
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escape = false;
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}
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end
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type id = int
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type event_filter = EventFilter.t
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module Context = struct
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type t = { derp : bool }
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end
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module Response = struct
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type t = {
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ctx : Context.t;
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(* layer_id : LayerId.t; *)
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id : id;
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rect : Gg.box2;
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interact_rect : Gg.box2;
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sense : Sense.t;
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enabled : bool;
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contains_pointer : bool;
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hovered : bool;
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highlighted : bool;
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clicked : bool;
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fake_primary_click : bool;
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long_touched : bool;
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drag_started : bool;
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dragged : bool;
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drag_stopped : bool;
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is_pointer_button_down_on : bool;
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interact_pointer_pos : Gg.p2 option;
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changed : bool;
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}
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end
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module Align = struct
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open Gg
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type range = size1 * size1
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type t =
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| Min (* Left or top. *)
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| Center (* Horizontal or vertical center *)
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| Max (* Right or bottom *)
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let pp_t ppf =
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F.(
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function
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| Min -> pf ppf "Min"
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| Center -> pf ppf "Center"
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| Max -> pf ppf "Max")
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let size_within_rect (size : size2) (frame : box2) : box2 =
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let size_within_range (size : size1) (range : range) : range =
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let min, max = range in
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if max -. min == Float.infinity && size == Float.infinity then
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range
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else range
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in
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let x_range =
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size_within_range (P2.x size) (Box2.minx frame, Box2.maxx frame)
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in
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let y_range =
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size_within_range (P2.y size) (Box2.miny frame, Box2.maxy frame)
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in
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Box2.v
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(P2.v (fst x_range) (fst y_range))
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(P2.v (snd x_range) (snd y_range))
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end
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type align = Align.t
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module Fonts = struct
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open Gg
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let pixels_per_point = ref 1.0
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type t = { gv : Gv.Text.font; pixels_per_point : size1 }
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let find_font gv name : t option =
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Option.fold
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~some:(fun gv ->
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Some { gv; pixels_per_point = !pixels_per_point })
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~none:None
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(Gv.Text.find_font gv ~name)
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end
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let pp_color : Gv.Color.t Fmt.t =
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F.(
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record
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[
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field "r" (fun (s : Gv.Color.t) -> s.r) float;
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field "g" (fun (s : Gv.Color.t) -> s.g) float;
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field "b" (fun (s : Gv.Color.t) -> s.b) float;
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field "a" (fun (s : Gv.Color.t) -> s.a) float;
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])
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module TextLayout = struct
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open Gg
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type font_selection = Default | FontId of (string * float)
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type text_format = {
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font_id : font_selection;
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extra_letter_spacing : float;
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line_height : float option;
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color : Gv.Color.t;
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background : Gv.Color.t;
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italics : bool;
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underline : stroke;
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strikethrough : stroke;
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valign : align;
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}
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let pp_text_format : text_format F.t =
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F.(
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record
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[
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field "font_id" (fun _ -> "...") string;
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field "extra_letter_spacing"
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(fun s -> s.extra_letter_spacing)
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float;
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field "line_height" (fun s -> s.line_height) (option float);
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field "color" (fun s -> s.color) pp_color;
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field "background" (fun s -> s.background) pp_color;
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])
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let text_format_default () =
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{
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font_id = FontId ("sans", 12.0);
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extra_letter_spacing = 0.0;
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line_height = None;
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color = Gv.Color.rgbf ~r:0.9 ~g:0.9 ~b:0.9;
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background = Gv.Color.transparent;
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italics = false;
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underline = stroke_none;
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strikethrough = stroke_none;
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valign = Max;
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}
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let text_format_simple font_id color : text_format =
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{ (text_format_default ()) with font_id; color }
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type text_wrapping = {
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max_width : float;
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max_rows : int;
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break_anywhere : bool;
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overflow_character : string option;
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}
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let pp_text_wrapping =
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F.(
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record
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[
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field "max_width" (fun s -> s.max_width) float;
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field "max_rows" (fun s -> s.max_rows) int;
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field "break_anywhere" (fun s -> s.break_anywhere) bool;
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field "overflow_character"
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(fun s -> s.overflow_character)
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(option string);
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])
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let default_text_wrapping () =
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{
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max_width = Float.infinity;
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max_rows = 100;
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(* TODO *)
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break_anywhere = false;
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overflow_character = Some "…";
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}
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type layout_section = {
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leading_space : float;
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byte_range : int * int;
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format : text_format;
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}
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let pp_layout_section : Format.formatter -> 'a -> unit =
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F.(
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record
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[
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field "leading_space" (fun s -> s.leading_space) float;
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field "byte_range"
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(fun s -> s.byte_range)
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(pair ~sep:(any ",") int int);
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field "format" (fun s -> s.format) pp_text_format;
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])
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type layout_job = {
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text : string;
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sections : layout_section list;
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wrap : text_wrapping;
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first_row_min_height : float;
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break_on_newline : bool;
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halign : align;
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justify : bool;
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}
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let pp_layout_job =
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F.(
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record
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[
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field "text" (fun s -> String.length s.text) int;
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field "sections"
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(fun s -> s.sections)
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(list pp_layout_section);
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field "wrap" (fun s -> s.wrap) pp_text_wrapping;
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field "first_row_min_height"
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(fun s -> s.first_row_min_height)
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float;
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field "break_on_newline" (fun s -> s.break_on_newline) bool;
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field "halign" (fun s -> s.halign) Align.pp_t;
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field "justify" (fun s -> s.justify) bool;
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])
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let default_layout_job () =
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{
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text = "";
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sections = [];
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wrap = default_text_wrapping ();
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first_row_min_height = 0.0;
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break_on_newline = true;
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halign = Min;
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justify = false;
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}
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type uv_rect = {
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offset : Gg.v2;
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size : Gg.v2;
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min : Gg.p2; (* Top left corner UV in texture *)
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max : Gg.p2; (* Bottom right corner (exclusive) *)
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}
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type glyph = {
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chr : string;
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pos : Gg.p2;
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ascent : float;
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size : Gg.size2;
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uv_rect : uv_rect;
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section_index : int;
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}
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type row_visuals = {
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(* mesh : mesh; *)
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mesh_bounds : Gg.box2;
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glyph_vertex_range : int * int;
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}
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let pp_row_visuals =
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F.(
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record
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[
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field "mesh_bounds"
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(fun (s : row_visuals) -> s.mesh_bounds)
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Gg.Box2.pp;
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field "glyph_vertex_range"
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(fun (s : row_visuals) -> s.glyph_vertex_range)
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(pair ~sep:(any ",") int int);
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])
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let pp_text_row : Format.formatter -> Gv.Text.text_row -> unit =
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F.(
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record
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[
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field "start_index"
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(fun (s : Gv.Text.text_row) -> s.start_index)
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int;
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field "end_index"
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(fun (s : Gv.Text.text_row) -> s.end_index)
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int;
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field "width" (fun (s : Gv.Text.text_row) -> s.width) float;
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field "minx" (fun (s : Gv.Text.text_row) -> s.minx) float;
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field "maxx" (fun (s : Gv.Text.text_row) -> s.maxx) float;
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])
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type row = {
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text_row : Gv.Text.text_row;
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section_index_at_start : int;
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glyphs : glyph list;
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rect : Gg.box2;
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visuals : row_visuals;
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ends_with_newline : bool;
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}
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let pp_row : Format.formatter -> row -> unit =
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F.(
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record
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[
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field "text_row" (fun s -> s.text_row) pp_text_row;
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field "section_index_at_start"
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(fun (s : row) -> s.section_index_at_start)
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int;
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field "format" (fun (s : row) -> List.length s.glyphs) int;
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field "rect" (fun (s : row) -> s.rect) Gg.Box2.pp;
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field "visuals" (fun (s : row) -> s.visuals) pp_row_visuals;
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field "ends_with_newline"
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(fun (s : row) -> s.ends_with_newline)
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bool;
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])
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let row_default () =
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{
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text_row =
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{
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start_index = 0;
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end_index = 0;
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width = 0.;
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minx = 0.;
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maxx = 0.;
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next = 0;
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};
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section_index_at_start = 0;
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glyphs = [];
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rect = Box2.zero;
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visuals =
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{ mesh_bounds = Box2.zero; glyph_vertex_range = (0, 0) };
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ends_with_newline = false;
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}
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type galley = {
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job : layout_job;
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rows : row array;
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elided : bool;
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rect : Gg.box2;
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mesh_bounds : Gg.box2;
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num_vertices : int;
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num_indices : int;
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pixels_per_point : float;
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}
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type rich_text = {
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text : string;
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size : float option;
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extra_letter_spacing : float;
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line_height : float option;
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font : string option;
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background_color : Gv.Color.t;
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text_color : Gv.Color.t;
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code : bool;
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strong : bool;
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weak : bool;
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strikethrough : bool;
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underline : bool;
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italics : bool;
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raised : bool;
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}
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let rich_text_default =
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{
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text = "";
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size = None;
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extra_letter_spacing = 0.0;
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line_height = None;
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font = None;
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background_color = Gv.Color.transparent;
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text_color = Gv.Color.rgbf ~r:0.9 ~g:0.9 ~b:0.9;
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code = false;
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strong = false;
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weak = false;
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strikethrough = false;
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underline = false;
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italics = false;
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raised = false;
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}
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type widget_text =
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| RichText of rich_text
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| LayoutJob of layout_job
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| Galley of galley
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type cursor = {
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index : int;
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row : int option;
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prefer_next_row : bool;
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}
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type cursor_range = cursor * cursor
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type cursor_state = cursor_range option
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let cursor_index = ref 0
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let new_cursor ?(loc = 0) () =
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cursor_index := !cursor_index + 1;
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{ index = loc; row = None; prefer_next_row = false }
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let simple text (font : font_selection) color wrap_width :
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layout_job =
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{
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(default_layout_job ()) with
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text;
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sections =
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[
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{
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leading_space = 0.0;
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byte_range = (0, String.length text);
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format = text_format_simple font color;
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};
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];
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wrap =
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{ (default_text_wrapping ()) with max_width = wrap_width };
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break_on_newline = true;
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}
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let simple_singleline text (font : font_selection) color :
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layout_job =
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{
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(default_layout_job ()) with
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text;
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sections =
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[
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{
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leading_space = 0.0;
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byte_range = (0, String.length text);
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format = text_format_simple font color;
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};
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];
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wrap = default_text_wrapping ();
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break_on_newline = true;
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}
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let layout (gv : Gv.t) (fonts : Fonts.t) (job : layout_job) : galley
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=
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F.epr "TextLayout.layout@.";
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F.epr "job.wrap.max_width=%f@." job.wrap.max_width;
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F.epr "job.wrap.max_rows=%d@." job.wrap.max_rows;
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if job.wrap.max_rows == 0 then
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{
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job;
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rows = Array.make 1 (row_default ());
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rect = Box2.zero;
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mesh_bounds = Box2.zero;
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elided = true;
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num_vertices = 0;
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num_indices = 0;
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pixels_per_point = fonts.pixels_per_point;
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}
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else
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let metrics = Gv.Text.metrics gv in
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let lines = Gv.Text.make_empty_rows job.wrap.max_rows in
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let row_count =
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Gv.Text.break_lines gv ~break_width:job.wrap.max_width
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~max_rows:job.wrap.max_rows ~lines job.text
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in
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F.epr "row_count=%d@." row_count;
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let height = ref 0. in
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let max_width = ref 0. in
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{
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job;
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rows =
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Array.init row_count (fun n ->
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let text_row = Array.get lines n in
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height := !height +. metrics.line_height;
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let rect =
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Box2.v
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(P2.v text_row.minx !height)
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(P2.v text_row.maxx
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(!height +. metrics.line_height))
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in
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max_width := Float.max text_row.maxx !max_width;
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{
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text_row;
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section_index_at_start = 0;
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glyphs = [ (* TODO *) ];
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rect;
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visuals =
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{
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mesh_bounds = rect;
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glyph_vertex_range =
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(text_row.start_index, text_row.end_index);
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};
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ends_with_newline = false (* TODO *);
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});
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rect =
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Box2.v Size2.zero
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(P2.v job.wrap.max_width
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(Float.of_int row_count *. metrics.line_height));
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elided = row_count > job.wrap.max_rows (* TODO *);
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mesh_bounds = Box2.v Size2.zero (P2.v !max_width !height);
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num_indices = 0 (* TODO *);
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num_vertices = 0 (* TODO *);
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pixels_per_point = fonts.pixels_per_point;
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}
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end
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|
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let rec nth_tl n = function
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| hd :: tl -> if n > 0 then nth_tl (n - 1) tl else hd :: tl
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| [] -> []
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|
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let _ =
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assert (List.equal Int.equal (nth_tl 2 [ 0; 1; 2; 3 ]) [ 2; 3 ]);
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assert (List.equal Int.equal (nth_tl 3 [ 0; 1; 2 ]) []);
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assert (List.equal Int.equal (nth_tl 0 [ 0; 1 ]) [ 0; 1 ])
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module Painter = struct
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|
type t = Gv.t
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|
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let galley (t : t) (g : TextLayout.galley) : unit =
|
|
F.epr
|
|
"Painter.galley (String.length g.job.text)=%d (Array.length \
|
|
g.rows)=%d @."
|
|
(String.length g.job.text)
|
|
(Array.length g.rows);
|
|
F.epr "g.rect=%a@." Gg.Box2.pp g.rect;
|
|
F.epr "g.job=%a@." F.(braces TextLayout.pp_layout_job) g.job;
|
|
(* F.epr "g.rows=%a@." F.(braces (array TextLayout.pp_row)) g.rows;*)
|
|
Array.iteri
|
|
Gv.(
|
|
fun _n (row : TextLayout.row) ->
|
|
let sections =
|
|
List.filter
|
|
(fun (r : TextLayout.layout_section) ->
|
|
row.text_row.start_index <= snd r.byte_range)
|
|
(nth_tl row.section_index_at_start g.job.sections)
|
|
(* TODO don't need to iterate the whole list *)
|
|
in
|
|
assert (List.length sections > 0);
|
|
|
|
ignore
|
|
(List.fold_left
|
|
Gg.(
|
|
fun x (sec : TextLayout.layout_section) ->
|
|
let start, end_ =
|
|
( min
|
|
(String.length g.job.text - 1)
|
|
(max 0
|
|
(max (fst sec.byte_range)
|
|
row.text_row.start_index)),
|
|
min
|
|
(String.length g.job.text - 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", 12.)
|
|
| FontId (s, size) -> (s, size)
|
|
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:0. ~y:0. ~start ~end_
|
|
g.job.text
|
|
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;
|
|
let w =
|
|
Text.text_w t ~x:(Box2.minx row.rect)
|
|
~y:(Box2.miny row.rect) ~start ~end_ g.job.text
|
|
in
|
|
x +. w)
|
|
0. sections))
|
|
g.rows
|
|
end
|
|
|
|
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 Layout = struct
|
|
open Gg
|
|
|
|
type direction = LeftToRight | RightToLeft | TopDown | BottomUp
|
|
|
|
type t = {
|
|
main_dir : direction;
|
|
main_wrap : bool;
|
|
main_align : align;
|
|
main_justify : bool;
|
|
cross_align : align;
|
|
cross_justify : bool;
|
|
}
|
|
|
|
let horizontal =
|
|
{
|
|
main_dir = LeftToRight;
|
|
main_wrap = true;
|
|
main_align = Min;
|
|
main_justify = true;
|
|
cross_align = Min;
|
|
cross_justify = true;
|
|
}
|
|
|
|
let vertical =
|
|
{
|
|
main_dir = TopDown;
|
|
main_wrap = true;
|
|
main_align = Min;
|
|
main_justify = true;
|
|
cross_align = Min;
|
|
cross_justify = true;
|
|
}
|
|
|
|
type region = { min_rect : box2; max_rect : box2; cursor : box2 }
|
|
|
|
let rec is_horizontal = function
|
|
| `Direction d -> (
|
|
match d with
|
|
| LeftToRight | RightToLeft -> true
|
|
| TopDown | BottomUp -> false)
|
|
| `Layout t -> is_horizontal (`Direction t.main_dir)
|
|
|
|
let available_from_cursor_max_rect t cursor max_rect : box2 =
|
|
(* TODO assert !cursor.any_nan() *)
|
|
(* TODO assert !max_rect.any_nan() *)
|
|
(* TODO assert !max_rect.is_finite() *)
|
|
let avail =
|
|
match t.main_dir with
|
|
| LeftToRight ->
|
|
Box2.of_pts
|
|
(V2.v (Box2.minx cursor) (Box2.miny max_rect))
|
|
(V2.v
|
|
Float.(
|
|
max
|
|
(max (Box2.maxx max_rect) (Box2.minx cursor))
|
|
(Box2.minx max_rect))
|
|
Float.(max (Box2.maxy max_rect) (Box2.miny max_rect)))
|
|
| RightToLeft -> Box2.zero (* TODO *)
|
|
| TopDown | BottomUp -> Box2.zero
|
|
in
|
|
let avail = Box2.inter avail cursor in
|
|
|
|
(* todo make sure it isn't negative (won't because Gg.maxx is maxing )*)
|
|
avail
|
|
|
|
let available_size t r =
|
|
if t.main_wrap then
|
|
if is_horizontal (`Direction t.main_dir) then
|
|
V2.v (Box2.w r.max_rect) (Box2.h r.cursor)
|
|
else V2.v (Box2.w r.cursor) (Box2.h r.max_rect)
|
|
else
|
|
Box2.size (available_from_cursor_max_rect t r.cursor r.max_rect)
|
|
|
|
let horizontal_justify (l : t) =
|
|
if is_horizontal (`Layout l) then l.main_justify
|
|
else l.cross_justify
|
|
|
|
module Grid = struct
|
|
type state = {
|
|
col_widths : Gg.size1 list;
|
|
row_heights : Gg.size1 list;
|
|
}
|
|
|
|
type t = {
|
|
id : id;
|
|
is_first_frame : bool;
|
|
prev_state : state;
|
|
initial_available : Gg.size1 option;
|
|
spacing : Gg.v2;
|
|
min_cell_size : Gg.v2;
|
|
max_cell_size : Gg.v2;
|
|
col : int;
|
|
row : int;
|
|
}
|
|
|
|
let available_rect _t _r = Gg.Box2.zero (*TODO*)
|
|
end
|
|
end
|
|
|
|
module Placer = struct
|
|
type t = {
|
|
grid : Layout.Grid.t option;
|
|
layout : Layout.t;
|
|
region : Layout.region;
|
|
}
|
|
|
|
let available_size t =
|
|
match t.grid with
|
|
| Some grid ->
|
|
Gg.Box2.size (Layout.Grid.available_rect grid t.region)
|
|
| None -> Layout.available_size t.layout t.region
|
|
|
|
let create layout region = { grid = None; layout; region }
|
|
end
|
|
|
|
module Ui = struct
|
|
type t = {
|
|
id : id;
|
|
style : Style.t;
|
|
placer : Placer.t;
|
|
enabled : bool;
|
|
gv : Gv.t;
|
|
}
|
|
|
|
let id = ref 0
|
|
let spacing ui = ui.style.spacing
|
|
let available_size ui = Placer.available_size ui.placer
|
|
let available_width ui = Gg.P2.x (available_size ui)
|
|
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 cursor_origin (ui : t) = Gg.Box2.o ui.placer.region.max_rect
|
|
|
|
let window gv rect : t =
|
|
let id, rect = allocate_space gv rect in
|
|
{
|
|
id;
|
|
style = Style.default;
|
|
placer =
|
|
Placer.create Layout.vertical
|
|
Layout.{ min_rect = rect; max_rect = rect; cursor = rect };
|
|
enabled = true;
|
|
gv;
|
|
}
|
|
|
|
let interact (_ui : t) rect (id : id option) sense : Response.t =
|
|
let id = Option.value id ~default:(-1) in
|
|
{
|
|
ctx = { derp = false };
|
|
id;
|
|
rect;
|
|
interact_rect = rect;
|
|
sense;
|
|
enabled = true;
|
|
contains_pointer = (*TODO*) true;
|
|
hovered = (*TODO*) true;
|
|
highlighted = (*TODO*) true;
|
|
clicked = (*TODO*) true;
|
|
fake_primary_click = (*TODO*) false;
|
|
long_touched = (*TODO*) false;
|
|
drag_started = false;
|
|
dragged = false;
|
|
drag_stopped = false;
|
|
is_pointer_button_down_on = false;
|
|
interact_pointer_pos = None;
|
|
changed = false;
|
|
}
|
|
end
|
|
|
|
module TextBuffer = struct
|
|
type t = String of string
|
|
|
|
let is_mutable = function String _ -> true
|
|
let as_string = function String s -> s
|
|
end
|
|
|
|
module TextEdit = struct
|
|
open Gg
|
|
|
|
type t = {
|
|
text : TextBuffer.t;
|
|
hint_text : TextLayout.widget_text;
|
|
id : id option;
|
|
id_source : id option;
|
|
font_selection : TextLayout.font_selection;
|
|
text_color : Gv.Color.t option;
|
|
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;
|
|
event_filter : event_filter;
|
|
cursor_at_end : bool;
|
|
min_size : Gg.v2;
|
|
align : align;
|
|
clip_text : bool;
|
|
char_limit : int; (* return_key : keyboard_shortcut; *)
|
|
}
|
|
|
|
type state = {
|
|
cursor : TextLayout.cursor_state;
|
|
(* undoer : undoer; *)
|
|
singleline_offset : float;
|
|
last_edit_time : float;
|
|
}
|
|
|
|
let load_state _ui _id =
|
|
{ cursor = None; singleline_offset = 0.0; last_edit_time = 0.0 }
|
|
|
|
type output = {
|
|
response : Response.t;
|
|
galley : TextLayout.galley;
|
|
galley_pos : Gg.p2;
|
|
text_clip_rect : Gg.box2;
|
|
state : state;
|
|
cursor_range : TextLayout.cursor_range option;
|
|
}
|
|
|
|
let multiline (text : TextBuffer.t) : t =
|
|
{
|
|
text;
|
|
hint_text = RichText TextLayout.rich_text_default;
|
|
id = None;
|
|
id_source = None;
|
|
font_selection = Default;
|
|
text_color = Some (Gv.Color.rgbf ~r:0.9 ~g:0.9 ~b:0.9);
|
|
layouter = None;
|
|
password = false;
|
|
frame = true;
|
|
margin = Margin.symmetric 4.0 2.0;
|
|
multiline = true;
|
|
interactive = true;
|
|
desired_width = None;
|
|
desired_height_rows = 4;
|
|
event_filter =
|
|
{
|
|
EventFilter.default with
|
|
horizontal_arrrows = true;
|
|
vertical_arrows = true;
|
|
tab = false;
|
|
};
|
|
cursor_at_end = true;
|
|
min_size = Gg.V2.zero;
|
|
align = Min;
|
|
clip_text = false;
|
|
char_limit = Int.max_int;
|
|
(* return_key = keyboard_shortcut; *)
|
|
}
|
|
|
|
let show_content (t : t) (ui : Ui.t) : output =
|
|
let origin = Ui.cursor_origin ui in
|
|
let text_color = t.text_color 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 text_color =
|
|
Option.value
|
|
~default:(Gv.Color.rgbf ~r:0.5 ~g:0.5 ~b:0.5)
|
|
text_color
|
|
in
|
|
let default_layouter (ui : Ui.t) (text : TextBuffer.t)
|
|
(wrap_width : size1) : TextLayout.galley =
|
|
let font =
|
|
match Gv.Text.find_font ui.gv ~name:"sans" with
|
|
| Some gv -> Fonts.{ gv; pixels_per_point = 1.0 }
|
|
| None -> failwith "can't font font 'sans'"
|
|
in
|
|
let layout_job =
|
|
if t.multiline then
|
|
TextLayout.simple
|
|
(TextBuffer.as_string text)
|
|
t.font_selection text_color wrap_width
|
|
else
|
|
TextLayout.simple_singleline
|
|
(TextBuffer.as_string text)
|
|
t.font_selection text_color
|
|
in
|
|
Ui.fonts ui.gv (fun f -> TextLayout.layout f font layout_job)
|
|
in
|
|
|
|
let layouter =
|
|
Option.value ~default:default_layouter t.layouter
|
|
in
|
|
let galley = layouter ui t.text wrap_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_height =
|
|
Float.min (Int.to_float t.desired_height_rows) 1.0 *. row_height
|
|
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)... *)
|
|
let state = load_state ui.gv 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
|
|
{
|
|
response;
|
|
galley;
|
|
galley_pos = Box2.o galley_pos;
|
|
text_clip_rect;
|
|
state;
|
|
cursor_range;
|
|
}
|
|
|
|
let show (t : t) ui : output =
|
|
let _is_mutable = TextBuffer.is_mutable t.text in
|
|
let _frame = t.frame in
|
|
|
|
let _margin = t.margin in
|
|
let output = show_content t ui in
|
|
let _outer_rect = output.response.rect in
|
|
output
|
|
end
|