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(* Programmed by Jedidiah Barber *)
(* Licensed under the Sunset License v1.0 *)


let license_text =
  "SUNSET LICENSE\n" ^
  "Version 1.0, June 2017\n" ^
  "\n" ^
  "1. You may copy, modify, use, sell, or distribute this work, verbatim or\n" ^
  "modified, for any purpose.\n" ^
  "\n" ^
  "2. If you sell or distribute this work, whether verbatim or modified, you must\n" ^
  "include a copy of this license, and you must make the source code available for\n" ^
  "no extra charge.\n" ^
  "\n" ^
  "3. A modified version of this work must be clearly labeled as such.\n" ^
  "\n" ^
  "4. Derivative works must also be licensed under this license or a license of\n" ^
  "equivalent terms. As an exception, linking this work with another, whether\n" ^
  "statically or dynamically, does not impose any license requirements on the\n" ^
  "other work.\n" ^
  "\n" ^
  "5. If a minimum of 15 years have passed since the date of first publishing for\n" ^
  "a part of this work, then that part is placed into the public domain and you\n" ^
  "may do whatever you want with it, regardless of all other clauses.\n"



let new_wall () =
  let newer =
    GWindow.dialog
      ~title:"Create New Wall - Number Wall Viewer" () in
  let dialog_box =
    GPack.vbox
      ~border_width:10
      ~packing:newer#vbox#add () in
  let frame =
    GBin.frame
      ~label:"New Wall"
      ~packing:dialog_box#add () in
  let frame_box =
    GPack.vbox
      ~border_width:5
      ~packing:frame#add () in
  let seq_box =
    GPack.hbox
      ~border_width:5
      ~packing:frame_box#add () in
  let _ =
    GMisc.label
      ~text:"Sequence : "
      ~packing:seq_box#add () in
  let seq_combo =
    GEdit.combo
      ~popdown_strings:["Pagoda";"Random"]
      ~allow_empty:false
      ~case_sensitive:false
      ~enable_arrow_keys:true
      ~packing:seq_box#add () in
  let adj_box =
    GPack.hbox
      ~border_width:5
      ~packing:frame_box#add () in
  let x_adj =
    GData.adjustment
      ~value:200.0
      ~lower:10.0
      ~upper:10000.0
      ~step_incr:1.0
      ~page_incr:100.0
      ~page_size:0.0 () in
  let y_adj =
    GData.adjustment
      ~value:200.0
      ~lower:10.0
      ~upper:10000.0
      ~step_incr:1.0
      ~page_incr:100.0
      ~page_size:0.0 () in
  let _ =
    GMisc.label
      ~text:"X : "
      ~packing:adj_box#add () in
  let _ =
    GEdit.spin_button
      ~adjustment:x_adj
      ~rate:0.0
      ~digits:0
      ~wrap:false
      ~packing:adj_box#add () in
  let _ =
    GMisc.label
      ~text:"  Y : "
      ~packing:adj_box#add () in
  let _ =
    GEdit.spin_button
      ~adjustment:y_adj
      ~rate:0.0
      ~digits:0
      ~wrap:false
      ~packing:adj_box#add () in
  newer#add_button_stock `CANCEL `CANCEL;
  newer#add_button_stock `NEW `NEW;
  let code = newer#run () in
  let result = (int_of_float x_adj#value, int_of_float y_adj#value, seq_combo#entry#text) in
  newer#destroy ();
  if code = `NEW then Some result else None



let open_file ?(folder = "") () =
  let chooser =
    GWindow.file_chooser_dialog
      ~action:`OPEN
      ~title:"Open Sequence - Number Wall Viewer" () in
  chooser#add_button_stock `CANCEL `dialog;
  chooser#add_select_button_stock `OPEN `filechooser;
  ignore (chooser#set_current_folder folder);
  let code = chooser#run () in
  let maybe_result = chooser#filename in
  chooser#destroy ();
  if code <> `filechooser then None else maybe_result



let overwrite_check ~filename =
  if not (Sys.file_exists filename) then
    true
  else
   (let asker =
      GWindow.dialog
        ~title:"Confirm Overwrite"
        ~resizable:false
        ~width:380 ~height:130 () in
    let box =
      GPack.hbox
        ~packing:asker#vbox#add () in
    ignore (GMisc.image
        ~stock:`DIALOG_ERROR
        ~packing:box#add ());
    let message =
      GMisc.label
        ~text:("Error: " ^ filename ^ " already exists.")
        ~packing:box#add () in
    message#set_line_wrap true;
    asker#add_button "Cancel" `dialog;
    asker#add_button "Overwrite" `filechooser;
    let code = asker#run () in
    asker#destroy ();
    code = `filechooser)

let save_export_file ~title ?(folder = "") ?(name = "") () =
  let chooser =
    GWindow.file_chooser_dialog
      ~action:`SAVE
      ~title:title () in
  chooser#add_button_stock `CANCEL `dialog;
  chooser#add_select_button_stock `SAVE `filechooser;
  chooser#set_current_name name;
  ignore (chooser#set_current_folder folder);
  let rec get_result chooser =
    let code = chooser#run () in
    let choice = chooser#filename in
    if code <> `filechooser then
      None
    else
      if Option.is_none choice ||
         overwrite_check ~filename:(Option.get choice)
      then
        choice
      else
        get_result chooser in
  let result = get_result chooser in
  chooser#destroy ();
  result

let save_file ?(folder = "") ?(name = "") () =
  save_export_file ~title:"Save Sequence - Number Wall Viewer" ~folder ~name ()

let export_file ?(folder = "") ?(name = "") () =
  save_export_file ~title:"Export Image - Number Wall Viewer" ~folder ~name ()



let colors ~fore ~back =
  let colormap = Gdk.Color.get_system_colormap () in
  let fore_color = Gdk.Color.alloc ~colormap (`RGB fore) in
  let back_color = Gdk.Color.alloc ~colormap (`RGB back) in
  let kaleidoscope =
    GWindow.dialog
      ~title:"Change Colors - Number Wall Viewer" () in
  let dialog_box =
    GPack.vbox
      ~border_width:10
      ~packing:kaleidoscope#vbox#add () in
  let frame =
    GBin.frame
      ~label:"Colors"
      ~packing:dialog_box#add () in
  let frame_box =
    GPack.vbox
      ~border_width:5
      ~packing:frame#add () in
  let fg_box =
    GPack.hbox
      ~packing:frame_box#add () in
  let _ =
    GMisc.label
      ~text:"Foreground : "
      ~packing:fg_box#add () in
  let fg_button =
    GButton.color_button
      ~color:fore_color
      ~title:"Change Foreground Color"
      ~packing:fg_box#add () in
  let bg_box =
    GPack.hbox
      ~packing:frame_box#add () in
  let _ =
    GMisc.label
      ~text:"Background : "
      ~packing:bg_box#add () in
  let bg_button =
    GButton.color_button
      ~color:back_color
      ~title:"Change Background Color"
      ~packing:bg_box#add () in
  kaleidoscope#add_button_stock `CANCEL `CANCEL;
  kaleidoscope#add_button_stock `APPLY `APPLY;
  let code = kaleidoscope#run () in
  let (new_fg, new_bg) = (fg_button#color, bg_button#color) in
  kaleidoscope#destroy ();
  let fg_r = Gdk.Color.red new_fg in
  let fg_g = Gdk.Color.green new_fg in
  let fg_b = Gdk.Color.blue new_fg in
  let bg_r = Gdk.Color.red new_bg in
  let bg_g = Gdk.Color.green new_bg in
  let bg_b = Gdk.Color.blue new_bg in
  if code = `APPLY then Some ((fg_r, fg_g, fg_b), (bg_r, bg_g, bg_b)) else None



let modulus ~current =
  let changer =
    GWindow.dialog
      ~title:"Set Modulus - Number Wall Viewer" () in
  let dialog_box =
    GPack.vbox
      ~border_width:10
      ~packing:changer#vbox#add () in
  let frame =
    GBin.frame
      ~label:"Modulus"
      ~packing:dialog_box#add () in
  let frame_box =
    GPack.vbox
      ~border_width:5
      ~packing:frame#add () in
  let adj =
    GData.adjustment
      ~value:(float_of_int current)
      ~lower:2.0
      ~upper:10001.0
      ~step_incr:1.0
      ~page_incr:100.0
      ~page_size:0.0 () in
  let _ =
    GEdit.spin_button
      ~adjustment:adj
      ~rate:0.0
      ~digits:0
      ~wrap:false
      ~packing:frame_box#add () in
  changer#add_button_stock `CANCEL `CANCEL;
  changer#add_button_stock `APPLY `APPLY;
  let code = changer#run () in
  let maybe_result = adj#value in
  changer#destroy ();
  if code = `APPLY then Some (int_of_float maybe_result) else None



let about () =
  let about_window =
    GWindow.about_dialog
      ~authors:["Jedidiah Barber"]
      ~comments:"A simple program to generate and visualise number walls."
      ~license:license_text
      ~title:"About - Number Wall Viewer"
      ~modal:true () in
  let destroy_me button = about_window#destroy () in
  ignore (about_window#connect#response ~callback:destroy_me);
  about_window#show ()