emacs-config/elisp/ui.el

;;; ui.el --- Specific UI definitions.
;; Disable the menubar, scrollbar, and toolbar
(menu-bar-mode -1)
(scroll-bar-mode -1)
(if window-system
    (tool-bar-mode -1)
  )

;; Enable column numbers
(column-number-mode 1)

;; Enable line numbers globally
(global-display-line-numbers-mode)

;; Line numbers
(display-line-numbers-mode 1)

;; Ivy
(use-package ivy
  :ensure t
  :config
  (ivy-mode 1)
  (setq ivy-use-virtual-buffers t)
  (setq enable-recursive-minibuffers t)
  (setq ivy-use-selectable-prompt t))

;; Swiper to replace ISearch
(use-package swiper
  :ensure t
  :bind (("C-s" . swiper)))

;; Counsel to force other stuff in emacs to use
;; ivy for completion
(use-package counsel
  :ensure t
  :config
  (counsel-mode 1))

;; Enable semantic for language-aware editing commands
(setq semantic-mode 't)

;; Install all-the-icons and it's fonts if they are not already installed.
(use-package all-the-icons
  :ensure t
  :config (unless (member "all-the-icons" (font-family-list))
	    (all-the-icons-install-fonts t)))

;; Tree
(use-package treemacs
  :ensure t
  :defer t
  :init
  (with-eval-after-load 'winum
    (define-key winum-keymap (kbd "M-0") #'treemacs-select-window))
  (with-eval-after-load 'treemacs
    (define-key treemacs-mode-map [mouse-1] #'treemacs-single-click-expand-action))
  :config
  (progn
    (treemacs-load-theme "all-the-icons")
    (setq treemacs-indent-guide-mode "line")))

(use-package treemacs-projectile
  :after (treemacs projectile)
  :ensure t)

(use-package treemacs-icons-dired
  :hook (dired-mode . treemacs-icons-dired-enable-once)
  :ensure t)

(use-package treemacs-magit
  :after (treemacs magit)
  :ensure t)

(use-package treemacs-all-the-icons
  :after (all-the-icons treemacs)
  :ensure t)

;; Theme
(use-package nord-theme
  :ensure t
  :requires all-the-icons
  :config
  (setq nord-uniform-mode-lines t)
  (load-theme 'nord t))

;; Modeline
(use-package doom-modeline
  :ensure t
  :init (doom-modeline-mode 1)
  :custom
  (doom-modeline-minor-modes t)
  (doom-modeline-height 18)
  (doom-modeline-hud t)
  (doom-modeline-icon t))

;; Tabs for easier more modern nav
(use-package centaur-tabs
  :ensure t
  :demand
  :config
  (centaur-tabs-mode t)
  (setq centaur-tabs-set-bar 'left
	;; all-the-icons support
	centaur-tabs-set-icons t
	centaur-tabs-gray-out-icons 'buffer
	centaur-tabs-height 24
	centaur-tabs-set-modified-marker t
	centaur-tabs-modified-marker "•")
  ;; This function is important to match the background to the theme.
  (centaur-tabs-headline-match)
  :hook
  ;; This hook will ignore showing tabs in certain modes
  (dired-mode . centaur-tabs-local-mode)
  (magit-mode . centaur-tabs-local-mode))

;; Buffer configuration
(use-package all-the-icons-ibuffer
  :ensure t
  :hook (ibuffer-mode . all-the-icons-ibuffer-mode)
  :requires all-the-icons)