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Diffstat (limited to 'Emacs/.config/emacs/elisp')
-rw-r--r-- | Emacs/.config/emacs/elisp/better-mode-line.el | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/Emacs/.config/emacs/elisp/better-mode-line.el b/Emacs/.config/emacs/elisp/better-mode-line.el new file mode 100644 index 0000000..a5cce16 --- /dev/null +++ b/Emacs/.config/emacs/elisp/better-mode-line.el @@ -0,0 +1,89 @@ +;;; better-mode-line.el --- A better mode-line system designed by me -*- lexical-binding: t; -*- + +;; Copyright (C) 2024 Aryadev Chavali + +;; Author: Aryadev Chavali <aryadev@aryadevchavali.com> +;; Keywords: + +;; 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: + +;; There are 3 lists for the left, centre and right of the mode-line. They're +;; the same as mode-line-format in terms of general schema as they're fed +;; directly into that variable. Padding strings are automatically generated +;; based on these segments so be sure to set these. + +;;; Code: + +(defun +better-mode-line/evil-state () + "Returns either the empty string if no evil-state is defined or +the first character of the evil state capitalised" + (with-eval-after-load "evil" + (if (bound-and-true-p evil-state) + (upcase + (substring + (format "%s" + evil-state) + 0 1)) + ""))) + +(defvar +better-mode-line/left-segment nil + "List of elements that are placed on the left of the mode-line") + +(defvar +better-mode-line/centre-segment nil + "List of elements that should be on the centre of the mode-line") + +(defvar +better-mode-line/right-segment nil + "List of elements that should be on the right of the mode-line") + +(defconst +better-mode-line/--minimum-padding 4 + "Minimum size of padding string.") + +(defun +better-mode-line/--left->centre-padding () + "Returns a string which pads the centre segment perfectly relative +to the left segment." + (let* ((left-segment-size (length (format-mode-line +better-mode-line/left-segment))) + (centre-segment-size (length (format-mode-line +better-mode-line/centre-segment))) + (padding-size (- (/ (window-width) 2) (/ centre-segment-size 2) left-segment-size))) + (make-string (if (< padding-size +better-mode-line/--minimum-padding) + +better-mode-line/--minimum-padding + padding-size) + ?\s))) + +(defun +better-mode-line/--centre->right-padding () + "Returns a string which pads the right segment perfectly relative +to the centre segment" + (let* ((centre-segment-size (length (format-mode-line +better-mode-line/centre-segment))) + (right-segment-size (length (format-mode-line +better-mode-line/right-segment))) + (padding-size (- (/ (window-width) 2) (/ centre-segment-size 2) right-segment-size))) + (make-string (if (< padding-size +better-mode-line/--minimum-padding) + +better-mode-line/--minimum-padding + padding-size) + ?\s))) + + +(defun +better-mode-line/setup-mode-line () + "Call this to setup the mode-line when: +- first loading the package. +- segments are updated." + (setq-default mode-line-format + `(,@+better-mode-line/left-segment + (:eval (+better-mode-line/--left->centre-padding)) + ,@+better-mode-line/centre-segment + (:eval (+better-mode-line/--centre->right-padding)) + ,@+better-mode-line/right-segment))) + +(provide 'better-mode-line) +;;; better-mode-line.el ends here |