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authormattkae <mattkae@protonmail.com>2022-06-07 08:23:47 -0400
committermattkae <mattkae@protonmail.com>2022-06-07 08:23:47 -0400
commitbd18a38c2898548a3664a9ddab9f79c84f2caf4a (patch)
tree95b9933376770381bd8859782ae763be81c2d72b /elpa/multiple-cursors-20220328.1724/mc-hide-unmatched-lines-mode.el
parentb07628dddf418d4f47b858e6c35fd3520fbaeed2 (diff)
parentef160dea332af4b4fe5e2717b962936c67e5fe9e (diff)
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-;;; mc-hide-unmatched-lines-mode.el
-
-;; Copyright (C) 2014 Aleksey Fedotov
-
-;; Author: Aleksey Fedotov <lexa@cfotr.com>
-;; Keywords: editing cursors
-
-;; 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 <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; This minor mode when enabled hides all lines where no cursors (and
-;; also hum/lines-to-expand below and above) To make use of this mode
-;; press "C-'" while multiple-cursor-mode is active. You can still
-;; edit lines while you are in mc-hide-unmatched-lines mode. To leave
-;; this mode press "<return>" or "C-g"
-;;
-
-;;; Code:
-
-(require 'multiple-cursors-core)
-(require 'mc-mark-more)
-
-(defvar hum/hide-unmatched-lines-mode-map (make-sparse-keymap)
- "Keymap for hide unmatched lines is mainly for rebinding C-g")
-
-(define-key hum/hide-unmatched-lines-mode-map (kbd "C-g") 'hum/keyboard-quit)
-(define-key hum/hide-unmatched-lines-mode-map (kbd "<return>") 'hum/keyboard-quit)
-
-(defun hum/keyboard-quit ()
- "Leave hide-unmatched-lines mode"
- (interactive)
- (mc-hide-unmatched-lines-mode 0))
-
-;; used only in in multiple-cursors-mode-disabled-hook
-(defun hum/disable-hum-mode ()
- (mc-hide-unmatched-lines-mode 0))
-
-;;;###autoload
-(define-minor-mode mc-hide-unmatched-lines-mode
- "Minor mode when enabled hides all lines where no cursors (and
-also hum/lines-to-expand below and above) To make use of this
-mode press \"C-'\" while multiple-cursor-mode is active. You can
-still edit lines while you are in mc-hide-unmatched-lines
-mode. To leave this mode press <return> or \"C-g\""
- :init-value nil
- :lighter " hu"
- :keymap hum/hide-unmatched-lines-mode-map
- (if mc-hide-unmatched-lines-mode
- ;;just in case if mc mode will be disabled while hide-unmatched-lines is active
- (progn
- (hum/hide-unmatched-lines)
- (add-hook 'multiple-cursors-mode-disabled-hook 'hum/disable-hum-mode t t))
- (progn
- (hum/unhide-unmatched-lines)
- (remove-hook 'multiple-cursors-mode-disabled-hook 'hum/disable-hum-mode))))
-
-(defconst hum/invisible-overlay-name 'hum/invisible-overlay-name)
-
-(defcustom hum/lines-to-expand 2
- "How many lines below and above cursor to show"
- :type '(integer)
- :group 'multiple-cursors)
-
-(defcustom hum/placeholder "..."
- "Placeholder which will be placed instead of hidden text"
- :type '(string)
- :group 'multiple-cursors)
-
-(defun hum/add-invisible-overlay (begin end)
- (let ((overlay (make-overlay begin
- end
- (current-buffer)
- t
- nil
- )))
- (overlay-put overlay hum/invisible-overlay-name t)
- (overlay-put overlay 'invisible t)
- (overlay-put overlay 'intangible t)
- (overlay-put overlay 'evaporate t)
- (overlay-put overlay 'after-string hum/placeholder)))
-
-(defun hum/hide-unmatched-lines ()
- (let ((begin (point-min)))
- (mc/for-each-cursor-ordered
- (save-excursion
- (goto-char (mc/cursor-beg cursor))
- (if (< begin (line-beginning-position (- hum/lines-to-expand)))
- (hum/add-invisible-overlay begin (line-end-position (- hum/lines-to-expand))))
- (setq begin (line-beginning-position (+ 2 hum/lines-to-expand)))))
- (hum/add-invisible-overlay begin (point-max))))
-
-(defun hum/unhide-unmatched-lines ()
- (remove-overlays nil nil hum/invisible-overlay-name t))
-
-(define-key mc/keymap (kbd "C-'") 'mc-hide-unmatched-lines-mode)
-
-(provide 'mc-hide-unmatched-lines-mode)