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

154 lines
5.6 KiB
EmacsLisp

;;; mc-cua.el --- Make multiple-cursors interact with CUA mode.
;; Copyright (c) 2013 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: 16 Jul 2013
;; Package-Requires: ((multiple-cursors "1.2.1"))
;; Keywords: editing, cursors
;;; Commentary:
;;
;; This library contains functions to make multiple-cursors interact
;; with CUA mode.
;;
;; Suggested key bindings are as follows:
;;
;; (define-key cua--rectangle-keymap (kbd "C-. C-,") 'mc/cua-rectangle-to-multiple-cursors)
;;
;; To enable interaction between multiple cursors and CUA rectangle
;; copy & paste:
;;
;; (mc/cua-rectangle-setup)
;;; Code:
(require 'cl)
(require 'multiple-cursors-core)
(require 'cua-rect)
;;;###autoload
(defun mc/cua-rectangle-to-multiple-cursors ()
"Turn CUA rectangle mode into multiple-cursors mode, keeping insert positions and selections."
(interactive)
(let ((right (cua--rectangle-right-side))
rows)
(cua--rectangle-operation
'clear nil t nil nil
(lambda (s e _l _r)
(setq rows
(append rows
(list (cons (+ 0 s) (+ 0 e)))))))
(cua--cancel-rectangle)
(if rows
(let ((mark-row `(lambda (row)
,@(if right
'((push-mark (car row))
(goto-char (cdr row)))
'((push-mark (cdr row))
(goto-char (car row))))
(setq transient-mark-mode (cons 'only transient-mark-mode))
(activate-mark)
(setq deactivate-mark nil)))
(top (car rows))
(rest (cdr rows)))
(loop for row in rest do
(mc/save-excursion
(funcall mark-row row)
(mc/create-fake-cursor-at-point)))
(funcall mark-row top)
(mc/maybe-multiple-cursors-mode)))))
(add-to-list 'mc--default-cmds-to-run-once 'mc/cua-rectangle-to-multiple-cursors)
;;
;; Build a CUA rectangle from entries copied with multiple cursors.
;;
(defadvice mc--maybe-set-killed-rectangle
(around mc/cua-set-last-killed-rectangle)
"Set `cua--last-killed-rectangle' as well as `killed-rectangle'."
(if (boundp 'cua--last-killed-rectangle)
(let ((orig-entries killed-rectangle))
ad-do-it
(when (not (eq orig-entries killed-rectangle))
(setq cua--last-killed-rectangle
(cons (car kill-ring) killed-rectangle))))
ad-do-it))
;;
;; Let each of multiple cursors paste the corresponding line of the
;; last killed rectangle.
;;
(defvar mc/cua-saved-kill-ring nil)
(defadvice current-kill
(before mc/cua-remember-kill-ring)
"Remember `kill-ring' before interprogram-paste."
(setq mc/cua-saved-kill-ring kill-ring))
(defadvice current-kill
(after mc/cua-clear-last-killed-rectangle-on-interprogram-paste)
"Clear `cua--last-killed-rectangle' on interprogram paste."
(and (= n 0)
interprogram-paste-function
(boundp 'cua--last-killed-rectangle)
cua--last-killed-rectangle
(not (eq mc/cua-saved-kill-ring kill-ring))
(setq cua--last-killed-rectangle nil))
(setq mc/cua-saved-kill-ring nil))
(defadvice cua-paste
(before mc/cua-divide-rectangle-into-lines)
"Let each of multiple cursors paste the corresponding line of the last killed rectangle."
(and (null arg) ;; Currently no support for register 0-9.
(or (null kill-ring)
(current-kill 0)) ;; Take interprogram paste into account.
cua--last-killed-rectangle
multiple-cursors-mode
(let ((rect (cdr cua--last-killed-rectangle)))
(mc/for-each-cursor-ordered
(let ((kill-ring (overlay-get cursor 'kill-ring))
(kill-ring-yank-pointer (overlay-get cursor 'kill-ring-yank-pointer)))
(kill-new (or (pop rect) ""))
(overlay-put cursor 'kill-ring kill-ring)
(overlay-put cursor 'kill-ring-yank-pointer kill-ring-yank-pointer)))
(setq cua--last-killed-rectangle nil))))
;;;###autoload
(defun mc/cua-rectangle-setup ()
"Enable interaction between multiple cursors and CUA rectangle copy & paste."
(ad-activate 'mc--maybe-set-killed-rectangle)
(ad-activate 'current-kill)
(ad-activate 'cua-paste))
(provide 'mc-cua)
;;; mc-cua.el ends here