319 lines
12 KiB
EmacsLisp
319 lines
12 KiB
EmacsLisp
;; core-ui.el --- draw me like one of your French editors
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(defvar doom-ui-fringe-size '3
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"Default fringe width")
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(defvar doom-ui-theme 'doom-one
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"The color theme currently in use.")
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(defvar doom-ui-font
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(font-spec :family "Fira Mono" :size 12)
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"The font currently in use.")
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(defvar doom-ui-variable-pitch-font
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(font-spec :family "Fira Sans" :size 12)
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"The font currently in use.")
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(defvar doom-ui-unicode-font
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(font-spec :family "DejaVu Sans Mono" :size 12)
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"Fallback font for unicode glyphs.")
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(setq bidi-display-reordering nil ; disable bidirectional text for tiny performance boost
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blink-matching-paren nil ; don't blink--too distracting
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cursor-in-non-selected-windows nil
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echo-keystrokes 0.02
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frame-inhibit-implied-resize t
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;; remove continuation arrow on right fringe
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fringe-indicator-alist (delq (assq 'continuation fringe-indicator-alist)
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fringe-indicator-alist)
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highlight-nonselected-window nil
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image-animate-loop t
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indicate-buffer-boundaries nil
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indicate-empty-lines nil
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jit-lock-defer-time nil
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jit-lock-stealth-nice 0.1
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jit-lock-stealth-time 0.2
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jit-lock-stealth-verbose nil
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max-mini-window-height 0.3
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mode-line-default-help-echo nil ; disable mode-line mouseovers
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redisplay-dont-pause t ; don't pause display on input
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resize-mini-windows 'grow-only ; Minibuffer resizing
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show-help-function nil ; hide :help-echo text
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show-paren-delay 0.075
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show-paren-highlight-openparen t
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show-paren-when-point-inside-paren t
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split-width-threshold nil ; favor horizontal splits
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uniquify-buffer-name-style nil
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use-dialog-box nil ; always avoid GUI
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visible-bell nil
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visible-cursor nil
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x-stretch-cursor t)
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;;
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;; Bootstrap
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;;
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(tooltip-mode -1) ; relegate tooltips to echo area only
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(menu-bar-mode -1)
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(when window-system
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(scroll-bar-mode -1)
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(tool-bar-mode -1)
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;; full filename in frame title
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(setq frame-title-format '(buffer-file-name "%f" ("%b")))
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;; Set theme and font
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(with-demoted-errors "FONT ERROR: %s"
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(set-frame-font doom-ui-font t t)
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;; Fallback to `doom-unicode-font' for Unicode characters
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(when doom-ui-unicode-font
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(set-fontset-font t 'unicode doom-ui-unicode-font))
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;; Set font for variable-pitch mode
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(when doom-ui-variable-pitch-font
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(set-face-attribute 'variable-pitch nil :font doom-ui-variable-pitch-font)))
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;; standardize fringe width
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(fringe-mode doom-ui-fringe-size)
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(push `(left-fringe . ,doom-ui-fringe-size) default-frame-alist)
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(push `(right-fringe . ,doom-ui-fringe-size) default-frame-alist)
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;; no fringe in the minibuffer
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(add-hook! (emacs-startup minibuffer-setup)
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(set-window-fringes (minibuffer-window) 0 0 nil))
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;; Show tilde in margin on empty lines
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(define-fringe-bitmap 'tilde [64 168 16] nil nil 'center)
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(set-fringe-bitmap-face 'tilde 'fringe)
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(setcdr (assq 'empty-line fringe-indicator-alist) 'tilde))
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(fset 'yes-or-no-p 'y-or-n-p) ; y/n instead of yes/no
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(global-eldoc-mode -1) ; auto-enabled in Emacs 25+; I'd rather do this myself
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;;; TODO Smart quit-confirmation prompt
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;; Only prompt if there are real buffers left (see ;; `doom-real-buffer-p')
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;;(setq confirm-kill-emacs
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;; (lambda (_)
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;; (if (ignore-errors (doom-get-real-buffers))
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;; (y-or-n-p "››› Quit?")
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;; t)))
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;;; Flash the mode-line on error
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;; TODO More flexible colors (only suits dark themes)
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;; FIXME With a rapid key-repeat setting the mode-line bg can get stuck
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(defvar doom--visual-bell-bg nil)
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(setq ring-bell-function 'doom-visual-bell)
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(defun doom-visual-bell ()
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(unless doom--visual-bell-bg
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(setq doom--visual-bell-bg (face-attribute 'mode-line :background)))
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(set-face-attribute 'mode-line nil :background "#54252C")
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(run-with-timer
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0.1 nil
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(lambda () (set-face-attribute 'mode-line nil :background doom--visual-bell-bg))))
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;;; TODO/FIXME/NOTE highlighting in comments
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(add-hook! (prog-mode emacs-lisp-mode css-mode)
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(font-lock-add-keywords
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nil '(("\\<\\(TODO\\(?:(.*)\\)?:?\\)\\>" 1 'warning prepend)
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("\\<\\(FIXME\\(?:(.*)\\)?:?\\)\\>" 1 'error prepend)
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("\\<\\(NOTE\\(?:(.*)\\)?:?\\)\\>" 1 'success prepend))))
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;;; More reliable inter-window border
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;; The native border "consumes" a pixel of the fringe on righter-most splits (in
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;; Yamamoto's emacs-mac at least), `window-divider' does not.
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;; NOTE available since Emacs 25.1
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(setq window-divider-default-places t
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window-divider-default-bottom-width 1
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window-divider-default-right-width 1)
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(window-divider-mode +1)
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;;; Mode-line hiding minor mode
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(defvar doom-hide-mode-line-format nil
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"Format to use when `doom-hide-mode-line-mode' replaces the modeline")
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(defvar-local doom--old-mode-line nil)
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(define-minor-mode doom-hide-mode-line-mode
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"Minor mode to hide the mode-line in the current buffer."
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:init-value nil
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:global nil
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(if doom-hide-mode-line-mode
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(setq doom--old-mode-line mode-line-format
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mode-line-format doom-hide-mode-line-format)
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(setq mode-line-format doom--old-mode-line
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doom--mode-line doom-hide-mode-line-format))
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(force-mode-line-update))
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;; Ensure major-mode or theme changes don't overwrite these variables
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(put 'doom--old-mode-line 'permanent-local t)
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(put 'doom-hide-mode-line-mode 'permanent-local t)
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;; mode-line is unimportant in some windows
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(with-current-buffer "*Messages*" (doom-hide-mode-line-mode +1))
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(add-hook! (help-mode compilation-mode messages-buffer-mode completion-list-mode)
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'doom-hide-mode-line-mode)
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;;
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;; Plugins
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;;
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;; Causes a flash around the cursor when it moves across a "large" distance.
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;; Usually between windows, or across files. This makes it easier to keep track
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;; where your cursor is, which I find helpful on my 30" 2560x1600 display.
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(package! beacon
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:config (beacon-mode +1)
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(setq beacon-color (let ((bg (face-attribute 'highlight :background nil t)))
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(if (eq bg 'unspecified) (face-attribute 'highlight :foreground nil t) bg))
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beacon-blink-when-buffer-changes t
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beacon-blink-when-point-moves-vertically 10))
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;; I modified the built-in `hideshow' package to be prettier, autoload when
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;; needed, and to behave as much like folding in vim does as possible. A better
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;; option might be `origami', but certain bugs in it are preventing the switch
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;; for now.
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(package! hideshow :ensure nil
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:commands (hs-minor-mode hs-toggle-hiding hs-already-hidden-p)
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:init
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(defun doom*load-hs-minor-mode ()
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(hs-minor-mode 1)
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(advice-remove 'evil-toggle-fold 'doom-load-hs-minor-mode))
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(advice-add 'evil-toggle-fold :before 'doom*load-hs-minor-mode)
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:config
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;; Prettify code folding in emacs
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(defface doom-folded-face '((t (:background "#ff8")))
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"Face to hightlight `hideshow' overlays."
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:group 'hideshow)
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(setq hs-set-up-overlay
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(lambda (ov)
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(when (eq 'code (overlay-get ov 'hs))
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(overlay-put
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ov 'display (propertize " [...] " 'face 'doom-folded-face))))))
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;; Show unintrusive indentation markers, and do some whitespace voodoo to
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;; prevent the lack-of-indent-guides-on-blank-lines problem.
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(package! highlight-indent-guides
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:commands highlight-indent-guides-mode
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:config
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(setq highlight-indent-guides-method 'character)
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(defun doom|highlight-indent-guides-adjust-whitespace (&optional start end)
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"Consider this the opposite of `delete-trailing-whitespace'. Injects
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whitespace into buffer so that `highlight-indent-guides-mode' will display
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consistent, unbroken indent markers. This whitespace is stripped out on save, as
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not to affect the resulting file."
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(interactive (progn (barf-if-buffer-read-only)
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(if (use-region-p)
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(list (region-beginning) (region-end))
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(list nil nil))))
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(unless indent-tabs-mode
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(save-match-data
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(save-excursion
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(let ((end-marker (copy-marker (or end (point-max))))
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(start (or start (point-min))))
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(goto-char start)
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(while (and (re-search-forward "^$" end-marker t) (not (>= (point) end-marker)))
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(let (line-start line-end next-start next-end)
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(save-excursion
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;; Check previous line indent
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(forward-line -1)
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(setq line-start (point)
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line-end (save-excursion (back-to-indentation) (point)))
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;; Check next line indent
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(forward-line 2)
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(setq next-start (point)
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next-end (save-excursion (back-to-indentation) (point)))
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;; Back to origin
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(forward-line -1)
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;; Adjust indent
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(let* ((line-indent (- line-end line-start))
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(next-indent (- next-end next-start))
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(indent (min line-indent next-indent)))
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(insert (make-string (if (zerop indent) 0 (1+ indent)) ? )))))
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(forward-line 1)))))
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(set-buffer-modified-p nil))
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nil)
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(add-hook! highlight-indent-guides-mode
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(if highlight-indent-guides-mode
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(progn
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(doom|highlight-indent-guides-adjust-whitespace)
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(add-hook 'after-save-hook 'doom|highlight-indent-guides-adjust-whitespace nil t))
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(remove-hook 'after-save-hook 'doom|highlight-indent-guides-adjust-whitespace t)
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(delete-trailing-whitespace)))
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;; If all else fails, this package tries to guess the indentation, but does it
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;; naively, so get default indentation from editorconfig instead.
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(defun doom*highlight-indentation-guess-offset (&rest _)
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(when (featurep 'editorconfig)
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(setq-local highlight-indentation-offset
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(string-to-int (gethash 'indent_size (editorconfig-get-properties))))))
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(advice-add 'highlight-indentation-guess-offset :before 'doom*highlight-indentation-guess-offset))
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;; Some modes don't adequately highlight numbers, therefore...
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(package! highlight-numbers :commands highlight-numbers-mode)
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;; Line highlighting (built-in)
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(package! hl-line :ensure nil
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:config
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;; stickiness doesn't play nice with emacs 25+
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(setq hl-line-sticky-flag nil
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global-hl-line-sticky-flag nil)
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;; Remember whether hl-line was initially on or off in the current buffer
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(defvar-local doom--hl-line-mode nil)
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(defun doom|hl-line-on () (if doom--hl-line-mode (hl-line-mode +1)))
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(defun doom|hl-line-off () (if doom--hl-line-mode (hl-line-mode -1)))
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(add-hook! hl-line-mode (if hl-line-mode (setq doom--hl-line-mode t))))
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;; A faster (or equal, in the worst case) line number plugin than `linum'. I've
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;; modified it to highlight the current line, and fixed some glaring problems
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;; with nlinum and frames.
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(package! nlinum
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:commands nlinum-mode
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:preface (defvar nlinum-format "%4d ")
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:init
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(add-hook!
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(markdown-mode prog-mode scss-mode web-mode conf-mode groovy-mode
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nxml-mode snippet-mode php-mode)
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'nlinum-mode)
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:config
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(defun doom/nlinum-toggle ()
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"Toggle `nlinum-mode'."
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(interactive)
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(nlinum-mode (if (bound-and-true-p nlinum-mode) -1 +1)))
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;; Optimization: calculate line number column width beforehand
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(add-hook! nlinum-mode
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(setq nlinum--width (length (save-excursion (goto-char (point-max))
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(format-mode-line "%l")))))
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;; Disable nlinum when making frames, otherwise we get linum face error
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;; messages that prevent frame creation.
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(defun doom|nlinum-off () (nlinum-mode -1))
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(add-hook 'before-make-frame-hook 'doom|nlinum-off)
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(add-hook 'after-make-frame-functions 'doom|nlinum-off))
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;; Makes distinguishing stacked delimiters apart much, much easier. Especially
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;; in parentheses-drunk languages like Lisp.
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(package! rainbow-delimiters
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:commands rainbow-delimiters-mode
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:config (setq rainbow-delimiters-max-face-count 3)
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:init
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(add-hook! (emacs-lisp-mode lisp-mode js-mode css-mode c-mode-common)
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'rainbow-delimiters-mode))
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;; Give color codes or names a background in that color. Nifty for css. Note
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;; that hl-line and rainbow-mode don't play nicely together.
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(package! rainbow-mode
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:commands rainbow-mode
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:init (after! hl-line (add-hook 'rainbow-mode-hook 'doom|hl-line-off)))
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;; This makes distractions-free mode possible, but modifying window margins on
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;; the fly and centering the buffer.
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(package! visual-fill-column
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:config
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(add-hook! visual-fill-column-mode
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(setq-local split-window-preferred-function 'visual-line-mode-split-window-sensibly)))
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(provide 'core-ui)
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;;; core-ui.el ends here
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