my-emacs-d/elpa/mc-extras-20150218.234/mc-rect.el
2016-09-26 19:37:47 +02:00

86 lines
3.4 KiB
EmacsLisp

;;; mc-rect.el --- Make multiple-cursors interact with rectangle selection.
;; Copyright (c) 2015 Akinori MUSHA
;;
;; All rights reserved.
;;
;; Redistribution and use in source and binary forms, with or without
;; modification, are permitted provided that the following conditions
;; are met:
;; 1. Redistributions of source code must retain the above copyright
;; notice, this list of conditions and the following disclaimer.
;; 2. Redistributions in binary form must reproduce the above copyright
;; notice, this list of conditions and the following disclaimer in the
;; documentation and/or other materials provided with the distribution.
;;
;; THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
;; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
;; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
;; ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
;; FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
;; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
;; OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
;; HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
;; LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
;; OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
;; SUCH DAMAGE.
;; Author: Akinori MUSHA <knu@iDaemons.org>
;; URL: https://github.com/knu/mc-extras.el
;; Created: 22 Jan 2015
;; Package-Requires: ((multiple-cursors "1.2.1"))
;; Keywords: editing, cursors
;;; Commentary:
;;
;; This library contains functions to make multiple-cursors interact
;; with rectangle selection.
;;
;; Suggested key bindings are as follows:
;;
;; (define-key rectangle-mark-mode-map (kbd "C-. C-,") 'mc/rect-rectangle-to-multiple-cursors)
;;; Code:
(require 'cl)
(require 'multiple-cursors-core)
;;;###autoload
(defun mc/rect-rectangle-to-multiple-cursors (start end)
"Turn rectangle-mark-mode into multiple-cursors mode, keeping selections."
(interactive "*r")
(let* ((current-line (line-beginning-position))
(reversed (= (current-column)
(min
(save-excursion
(goto-char end)
(current-column))
(save-excursion
(goto-char start)
(current-column)))))
(mark-row `(lambda (startcol endcol)
(let ((markcol ,(if reversed 'endcol 'startcol))
(pointcol ,(if reversed 'startcol 'endcol)))
(move-to-column markcol)
(push-mark (point))
(move-to-column pointcol)
(setq transient-mark-mode (cons 'only transient-mark-mode))
(activate-mark)
(setq deactivate-mark nil)))))
(apply-on-rectangle
'(lambda (startcol endcol)
(if (= (point) current-line)
(funcall mark-row startcol endcol)
(mc/save-excursion
(funcall mark-row startcol endcol)
(mc/create-fake-cursor-at-point))))
start end)
(mc/maybe-multiple-cursors-mode)))
(add-to-list 'mc--default-cmds-to-run-once 'mc/rect-rectangle-to-multiple-cursors)
(provide 'mc-rect)
;;; mc-rect.el ends here