17ee0e400b
After moving off of Meta, Dotfiles has a greater responsibility to manage configs. Vim, Tmux, and Emacs are now within Stow's purview.
203 lines
6.5 KiB
EmacsLisp
203 lines
6.5 KiB
EmacsLisp
;;; zen-mode.el --- Zen Editing Mode
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;; Copyright (C) 2017 Akilan Elango
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;; Author: Akilan Elango <akilan1997 [at] gmail.com>
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;; Keywords: convenience
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;; Package-Version: 20170723.139
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;; X-URL: https://github.com/aki237/zen-mode
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;; URL: https://github.com/aki237/zen-mode
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;; Version: 0.0.1
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;; Package-Requires: ((emacs "24.3"))
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Zen mode for Emacs is a distraction free editing mode for Emacs.
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;;
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;;; Installation:
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;;
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;; (require 'zen-mode)
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;;
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;;; Use:
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;; This is used to start a distraction free editing session in Emacs like in
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;; Sublime Text.
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;;
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;;; Code:
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;; require
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;; variables
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(defvar zen-mode-disable-mode-line t
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"Zen mode option to hide the mode line. Set true to hide the mode line in Zen-mode.")
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;; local variables
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(defvar-local zen-run-mode nil
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"zen-run-mode variable is to set state of whether zen mode is enabled in the current buffer"
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)
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(defvar-local zen-mode-margin-width (/ (/ (display-pixel-width) (/ (window-pixel-width) (window-width))) 5)
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"Zen mode option to specify the margin width."
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)
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(defvar-local zen-mode-line-cache nil
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"zen-mode-line-cache variable is used to save the modeline format content for future when it is disabled"
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)
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(defvar-local zen-menubar-state nil
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"zen-menubar-state variable is used to save whether menu-bar-mode is enabled before entering the zen mode"
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)
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(defvar-local zen-toolbar-state nil
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"zen-toolbar-state variable is used to save whether tool-bar-mode is enabled before entering the zen mode"
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)
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(defvar-local zen-linum-state nil
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"zen-linum-state variable is used to save whether linum-mode is enabled before entering the zen mode"
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)
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(defvar-local zen-blink-cursor-state nil
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"zen-blink-cursor-state variable is used to save whether blink-cursor-mode is enabled before entering the zen mode"
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)
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(defvar-local zen-lm-state 0
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"zm-lm-state variable is used to store the left margin width before the activation of zen-mode"
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)
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(defvar-local zen-rm-state 0
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"zm-rm-state variable is used to store the right margin width before the activation of zen-mode"
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)
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(defvar-local zen-lf-state 0
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"zm-lf-state variable is used to store the left fringe width before the activation of zen-mode"
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)
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(defvar-local zen-rf-state 0
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"zm-rf-state variable is used to store the right fringe width before the activation of zen-mode"
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)
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(defvar-local zen-fullscreen-state nil
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"zm-fullscreen-state variable is used to store fullscreen state before the activation of zen-mode"
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)
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;;;###autoload
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(define-minor-mode zen-mode
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"zen-mode is a distraction free editing mode for Emacs"
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:lighter " Zen"
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:keymap (let ((map (make-sparse-keymap)))
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(define-key map (kbd "C-c C-<") 'zen-mode-increase-margin-width)
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(define-key map (kbd "C-c C->") 'zen-mode-decrease-margin-width)
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map)
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(zen-run)
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)
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;; functions
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(defun zen-run()
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"zen-run is a lisp function which activates and deactivates the zen-mode"
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(if zen-run-mode
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(progn
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(message "Distraction free disabled")
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(setq window-size-change-functions (remove 'zen-mode-refresh-buffer 'window-size-change-functions))
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(if zen-linum-state
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(linum-mode 1))
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(if zen-blink-cursor-state
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(blink-cursor-mode 1))
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(if zen-mode-disable-mode-line
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(progn
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(setq mode-line-format zen-mode-line-cache)))
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(if zen-toolbar-state
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(tool-bar-mode 1))
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(if zen-menubar-state
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(menu-bar-mode 1))
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(setq left-fringe-width zen-lf-state)
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(setq right-fringe-width zen-rf-state)
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(setq left-margin-width zen-lm-state)
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(setq right-margin-width zen-rm-state)
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(set-frame-parameter nil 'fullscreen 'zen-fullscreen-state)
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(set-window-buffer nil (current-buffer))
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(setq zen-run-mode nil))
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(progn
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(if zen-mode-disable-mode-line
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(progn
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(setq zen-mode-line-cache mode-line-format)
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(setq mode-line-format nil)))
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(setq zen-menubar-state (and (boundp 'menu-bar-mode) menu-bar-mode))
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(setq zen-toolbar-state (and (boundp 'tool-bar-mode) tool-bar-mode))
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(setq zen-linum-state (and (boundp 'linum-mode) linum-mode))
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(setq zen-blink-cursor-state (and (boundp 'blink-cursor-mode) blink-cursor-mode))
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(setq zen-lm-state left-margin-width)
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(setq zen-rm-state right-margin-width)
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(setq zen-lf-state left-fringe-width)
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(setq zen-rf-state right-fringe-width)
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(setq zen-fullscreen-state (frame-parameter (selected-frame) 'fullscreen))
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(message "Distraction free enabled")
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(add-to-list 'window-size-change-functions 'zen-mode-refresh-buffer)
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(set-frame-parameter nil 'fullscreen 'fullboth)
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(linum-mode -1)
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(setq right-fringe-width 0)
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(setq left-fringe-width 0)
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(menu-bar-mode -1)
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(tool-bar-mode -1)
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(blink-cursor-mode -1)
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(zen-mode-set-margins)
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(setq zen-run-mode t))))
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(defun zen-mode-increase-margin-width()
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"zen-mode-increase-margin-width is a interactive lisp function to increase the margin width in zen-mode (by 5 units)."
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(interactive)
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(setq zen-mode-margin-width (+ zen-mode-margin-width 5))
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(zen-mode-set-margins)
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)
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(defun zen-mode-decrease-margin-width()
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"zen-mode-increase-margin-width is a interactive lisp function to increase the margin width in zen-mode (by 5 units)."
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(interactive)
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(setq zen-mode-margin-width (+ zen-mode-margin-width -5))
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(zen-mode-set-margins)
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)
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(defun zen-mode-set-margins()
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"zen-mode-set-margins is a lisp function to set the margin width (both left and right)."
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(setq left-margin-width zen-mode-margin-width)
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(setq right-margin-width zen-mode-margin-width)
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(set-window-buffer nil (current-buffer))
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)
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(defun zen-mode-refresh-buffer(frame)
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"zen-mode-refresh-buffer is a lisp function to refresh the buffer's margin width when window is resized"
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(setq zen-mode-margin-width (/ (/ (display-pixel-width) (/ (window-pixel-width) (window-width))) 5))
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(zen-mode-set-margins)
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)
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(provide 'zen-mode)
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;; coding: utf-8
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;; End:
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;;; zen-mode.el ends here
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