.emacs.d/init.d/basics/appearance.el

;;; appearance.el --- Configure appearance. -*- lexical-binding: t; -*-

;; Time-stamp: <2020-03-24T22:37:57+0100>

;;; Commentary:

;; * Helpful visualizations.
;; * Colors and theme.
;; * Icon font.
;; * Modeline stuff.

;;; Code:

(require 'basics/package-management)
(require 'basics/global-variables)

(use-package emacs
  ;; If 2 files have the same name, append directory name after the filename.
  :custom ((uniquify-after-kill-buffer-p t)
           (uniquify-buffer-name-style 'post-forward)
           (uniquify-strip-common-suffix t))
  :config (progn
            (defun my/set-default-fonts ()
              "Set the default font and the emoji font."
              (when (member "Source Code Pro" (font-family-list))  ; Default.
                (set-frame-font "Source Code Pro-10" t t))
              (when (member "Noto Color Emoji" (font-family-list)) ; Emojis.
                (set-fontset-font t 'unicode "Noto Color Emoji" nil 'prepend)))

            (tool-bar-mode -1)              ; Hide toolbar.
            (when (display-graphic-p)
              (set-scroll-bar-mode 'right)) ; Put scrollbar to the right side.
            (my/set-default-fonts)
            (global-hl-line-mode t)         ; Highlight current line.
            (show-paren-mode t)             ; Visualize matching parens.
            (setq frame-title-format        ; Show filename in frame title.
                  '(multiple-frames
                    "%b" ("" invocation-name "@" system-name
                          " – " buffer-file-truename)))))

;; Icon font (required by doom and others).
(use-package all-the-icons
  ;; :pin melpa            ; We need > 3.2.0 for all-the-icons-ivy-rich (issue #4).
  :init (defun my/font-installed-p (font-name)
          "Check if font with FONT-NAME is available."
          (if (find-font (font-spec :name font-name))
              t
            nil))
  ;; Install fonts if we have a GUI and the font is not already installed.
  ;; See <https://github.com/domtronn/all-the-icons.el/issues/58>.
  :config (when (and (window-system)
                     (not (my/font-installed-p "all-the-icons")))
            (all-the-icons-install-fonts t)))

(unless slow-computer
 (use-package doom-themes
   :after (all-the-icons)
   :config (progn (load-theme 'doom-molokai t)
                  (doom-themes-visual-bell-config)) ; Flash modeline on error.
   :custom-face (font-lock-comment-face ((t (:foreground "#667755")))))
 ) ; unless slow-computer.

;; Neat modeline.
(use-package doom-modeline
  :after (all-the-icons)
  :init (column-number-mode t)           ; Show column number.
  :custom ((doom-modeline-minor-modes t) ; Show minor modes.
           (doom-modeline-buffer-file-name-style 'truncate-except-project)
           (mode-line-percent-position nil)       ; Don't display percentage.
           (doom-modeline-buffer-state-icon nil)) ; Don't display save icon.
  :hook (after-init . doom-modeline-mode))

;; Show line numbers on the left side of the buffer.
(use-package display-line-numbers
  :if (>= emacs-major-version 26)
  :config (progn (defun my/disable-line-numbers ()
                   (display-line-numbers-mode -1))
                 (global-display-line-numbers-mode)))

(provide 'basics/appearance)
;;; appearance.el ends here