;;; oni-gui.el --- GUI settings for Emacs            -*- lexical-binding: t; -*-

;; Copyright (C) 2019  Tom Willemse

;; Author: Tom Willemse <tom@ryuslash.org>
;; Keywords: local
;; Version: 2021.1201.174449
;; Package-Requires: (oni-ui oni-hydra yoshi-theme diminish)

;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with this program.  If not, see <https://www.gnu.org/licenses/>.

;;; Commentary:

;; These are my GUI settings.

;;; Code:

(require 'hydra)
(require 'oni-ui)

(add-to-list 'default-frame-alist '(font . "Fantasque Sans Mono-15"))
(add-to-list 'default-frame-alist '(internal-border-width . 15))

(defconst oni-gui-isearch-icon #xf002)
(defconst oni-gui-arev-icon #xf1b8)

(defun oni-gui-setup-faces (frame)
  "Setup faces for FRAME."
  (set-face-attribute 'fixed-pitch frame :font "Fantasque Sans Mono-15")
  (set-face-attribute 'variable-pitch frame :font "Comic Neue-15"))

(defun oni-gui-setup-fontsets (frame)
  "Setup fontsets for FRAME.
If FRAME is nil, they’re set for the current frame."
  (let ((font-awesome "Font Awesome 5 Free Solid-12"))
    (set-fontset-font t oni-gui-isearch-icon font-awesome frame)
    (set-fontset-font t #xf026 font-awesome frame)
    (set-fontset-font t #xf027 font-awesome frame)
    (set-fontset-font t #xf028 font-awesome frame)
    (set-fontset-font t #xf240 font-awesome frame)
    (set-fontset-font t #xf241 font-awesome frame)
    (set-fontset-font t #xf242 font-awesome frame)
    (set-fontset-font t #xf243 font-awesome frame)
    (set-fontset-font t #xf244 font-awesome frame)
    (set-fontset-font t #xf2c9 font-awesome frame)
    (set-fontset-font t #xf6a9 font-awesome frame)
    (set-fontset-font t #xf769 font-awesome frame)
    (set-fontset-font t #xf76b font-awesome frame)
    (set-fontset-font t oni-gui-arev-icon font-awesome frame))
  (let ((font-awesome "Font Awesome 5 Free Regular-12"))
    (set-fontset-font t #xf0c8 font-awesome frame)
    (set-fontset-font t #xf14a font-awesome frame))
  (let ((dejavu-sans-mono "DejaVu Sans Mono-12"))
    (set-fontset-font t #x25c9 dejavu-sans-mono frame)
    (set-fontset-font t #x25cb dejavu-sans-mono frame)
    (set-fontset-font t #x2738 dejavu-sans-mono frame)
    (set-fontset-font t #x273f dejavu-sans-mono frame)
    (set-fontset-font t #x2713 dejavu-sans-mono frame)))

;; Thanks to the article at
;; https://andreyorst.gitlab.io/posts/2020-07-21-programming-ligatures-in-emacs/
(defun oni-gui-setup-ligatures (&optional _)
  "Define ligatures supported by Fantasque Sans Mono."
  (let ((ligatures
         `((?= . ,(regexp-opt '("==" "===" "=/=" "=>" "==>" "=>>" "=<<")))
           (?! . ,(regexp-opt '("!=" "!==")))
           (?< . ,(regexp-opt '("<-<" "<<-" "<--" "<-" "<->" "<=<" "<<=" "<=="
                                "<=>" "<~>" "<~~" "<~" "<<<" "<<" "<=" "<>"
                                "<|||" "<||" "<|" "<|>" "<!--")))
           (?- . ,(regexp-opt '("->" "-->" "->>" "-<" "-<<")))
           (?> . ,(regexp-opt '(">->" ">=>" ">>=" ">>-" ">-" ">=" ">>" ">>>")))
           (?~ . ,(regexp-opt '("~~" "~>" "~~>")))
           (?| . ,(regexp-opt '("|>" "||>" "|||>" "||")))
           (?: . ,(regexp-opt '("::")))
           (?& . ,(regexp-opt '("&&")))
           (?/ . ,(regexp-opt '("//" "/*")))
           (?* . ,(regexp-opt '("*/" "**/"))))))
    (dolist (char-regexp ligatures)
      (set-char-table-range composition-function-table (car char-regexp)
                            `([,(cdr char-regexp) 0 font-shape-gstring])))))

(with-eval-after-load 'isearch
  (diminish 'isearch-mode (string ?\s oni-gui-isearch-icon)))
(with-eval-after-load 'autorevert
  (diminish 'auto-revert-mode (string ?\s oni-gui-arev-icon)))

(defhydra oni-gui-hydra (:color teal :hint nil)
  "
^Buffer^           ^Packages^  ^Sort^
^^^^^^-----------------------------------
_br_: Revert       _pl_: List  _sl_: Sort
_bi_: Auto Insert  ^^          ^^
"
  ("br" (revert-buffer nil t))
  ("bi" auto-insert)
  ("pl" list-packages)
  ("sl" sort-lines))

(setq-default cursor-type '(bar . 2))
(setq-default cursor-in-non-selected-windows 'box)
(setq frame-resize-pixelwise t)

(scroll-bar-mode -1)

(if (daemonp)
    (progn
      (add-hook 'after-make-frame-functions #'oni-gui-setup-ligatures)
      (unless (eq system-type 'windows-nt)
        (add-hook 'after-make-frame-functions #'oni-gui-setup-fontsets)
        (add-hook 'after-make-frame-functions #'oni-gui-setup-faces)))
  (unless (eq system-type 'windows-nt)
    (oni-gui-setup-fontsets nil)
    (oni-gui-setup-faces nil))
  (oni-gui-setup-ligatures))

(global-unset-key (kbd "C-z"))
(global-set-key (kbd "C-c c") 'oni-gui-hydra/body)

(load-theme 'yoshi :no-confirm)

(provide 'oni-gui)
;;; oni-gui.el ends here