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1 | ;;; cua-gmrk.el --- CUA unified global mark support |
2 | ||
3 | ;; Copyright (C) 1997-2002 Free Software Foundation, Inc. | |
4 | ||
5 | ;; Author: Kim F. Storm <storm@cua.dk> | |
6 | ;; Keywords: keyboard emulations convenience cua mark | |
7 | ||
8 | ;; This file is part of GNU Emacs. | |
9 | ||
10 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
11 | ;; it under the terms of the GNU General Public License as published by | |
12 | ;; the Free Software Foundation; either version 2, or (at your option) | |
13 | ;; any later version. | |
14 | ||
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
21 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
22 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | ;; Boston, MA 02111-1307, USA. | |
24 | ||
25 | ||
26 | (provide 'cua-gmrk) | |
27 | ||
28 | (eval-when-compile | |
29 | (require 'cua-base) | |
30 | (require 'cua-rect) | |
31 | ) | |
32 | ||
33 | ;;; Global Marker | |
34 | ||
35 | ;; Non-nil when global marker is active. | |
36 | (defvar cua--global-mark-active nil) | |
37 | ||
38 | ;; Global mark position marker. | |
39 | (defvar cua--global-mark-marker nil) | |
40 | ||
41 | ;; Overlay for global mark position. | |
42 | (defvar cua--global-mark-overlay nil) | |
43 | ||
44 | ;; Initialize global mark things once... | |
45 | (defvar cua--global-mark-initialized nil) | |
46 | ||
47 | ;; Saved configured blink-cursor-interval | |
48 | (defvar cua--orig-blink-cursor-interval nil) | |
49 | ||
50 | (defun cua--deactivate-global-mark (&optional msg) | |
51 | (when cua--global-mark-overlay | |
52 | (delete-overlay cua--global-mark-overlay) | |
53 | (setq cua--global-mark-overlay nil)) | |
54 | (if (markerp cua--global-mark-marker) | |
55 | (move-marker cua--global-mark-marker nil)) | |
56 | (if cua--orig-blink-cursor-interval | |
57 | (setq blink-cursor-interval cua--orig-blink-cursor-interval | |
58 | cua--orig-blink-cursor-interval nil)) | |
59 | (setq cua--global-mark-active nil) | |
60 | (if msg | |
61 | (message "Global Mark Cleared"))) | |
62 | ||
63 | (defun cua--activate-global-mark (&optional msg) | |
64 | (if (not (markerp cua--global-mark-marker)) | |
65 | (setq cua--global-mark-marker (make-marker))) | |
66 | (when (eobp) | |
67 | (insert " ") | |
68 | (backward-char 1)) | |
69 | (move-marker cua--global-mark-marker (point)) | |
70 | (if (overlayp cua--global-mark-overlay) | |
71 | (move-overlay cua--global-mark-overlay (point) (1+ (point))) | |
72 | (setq cua--global-mark-overlay | |
73 | (make-overlay (point) (1+ (point)))) | |
74 | (overlay-put cua--global-mark-overlay 'face 'cua-global-mark-face)) | |
75 | (if (and cua-global-mark-blink-cursor-interval | |
76 | (not cua--orig-blink-cursor-interval)) | |
77 | (setq cua--orig-blink-cursor-interval blink-cursor-interval | |
78 | blink-cursor-interval cua-global-mark-blink-cursor-interval)) | |
79 | (setq cua--global-mark-active t) | |
80 | (if msg | |
81 | (message "Global Mark Set"))) | |
82 | ||
83 | (defun cua--global-mark-active () | |
84 | (if cua--global-mark-active | |
85 | (or (and (markerp cua--global-mark-marker) | |
86 | (marker-buffer cua--global-mark-marker)) | |
87 | (and (cua--deactivate-global-mark nil) | |
88 | nil)))) | |
89 | ||
90 | (defun cua-toggle-global-mark (stay) | |
91 | "Set or cancel the global marker. | |
92 | When the global marker is set, CUA cut and copy commands will automatically | |
93 | insert the deleted or copied text before the global marker, even when the | |
94 | global marker is in another buffer. | |
95 | If the global marker isn't set, set the global marker at point in the current | |
96 | buffer. Otherwise jump to the global marker position and cancel it. | |
97 | With prefix argument, don't jump to global mark when cancelling it." | |
98 | (interactive "P") | |
99 | (unless cua--global-mark-initialized | |
100 | (cua--init-global-mark)) | |
101 | (if (not (cua--global-mark-active)) | |
102 | (if (not buffer-read-only) | |
103 | (cua--activate-global-mark t) | |
104 | (ding) | |
105 | (message "Cannot set global mark in read-only buffer.")) | |
106 | (when (not stay) | |
107 | (pop-to-buffer (marker-buffer cua--global-mark-marker)) | |
108 | (goto-char cua--global-mark-marker)) | |
109 | (cua--deactivate-global-mark t))) | |
110 | ||
111 | (defun cua--insert-at-global-mark (str &optional msg) | |
112 | ;; Insert string at global marker and move marker | |
113 | (save-excursion | |
114 | (set-buffer (marker-buffer cua--global-mark-marker)) | |
115 | (goto-char (marker-position cua--global-mark-marker)) | |
116 | (insert-for-yank str) | |
117 | (cua--activate-global-mark)) | |
118 | (if msg | |
119 | (message "%s %d to global mark in %s:%d" msg | |
120 | (length str) | |
121 | (buffer-name (marker-buffer cua--global-mark-marker)) | |
122 | (marker-position cua--global-mark-marker)))) | |
123 | ||
124 | (defun cua--delete-at-global-mark (arg &optional msg) | |
125 | ;; Delete chars at global marker | |
126 | (save-excursion | |
127 | (set-buffer (marker-buffer cua--global-mark-marker)) | |
128 | (goto-char (marker-position cua--global-mark-marker)) | |
129 | (delete-char arg)) | |
130 | (if msg | |
131 | (message "%s %d chars at global mark in %s:%d" msg arg | |
132 | (buffer-name (marker-buffer cua--global-mark-marker)) | |
133 | (marker-position cua--global-mark-marker)))) | |
134 | ||
135 | (defun cua-copy-region-to-global-mark (start end) | |
136 | "Copy region to global mark buffer/position." | |
137 | (interactive "r") | |
138 | (if (cua--global-mark-active) | |
139 | (let ((src-buf (current-buffer))) | |
140 | (save-excursion | |
141 | (if (equal (marker-buffer cua--global-mark-marker) src-buf) | |
142 | (let ((text (buffer-substring-no-properties start end))) | |
143 | (goto-char (marker-position cua--global-mark-marker)) | |
144 | (insert text)) | |
145 | (set-buffer (marker-buffer cua--global-mark-marker)) | |
146 | (goto-char (marker-position cua--global-mark-marker)) | |
147 | (insert-buffer-substring-as-yank src-buf start end)) | |
148 | (cua--activate-global-mark) | |
149 | (message "Copied %d to global mark in %s:%d" | |
150 | (abs (- end start)) | |
151 | (buffer-name (marker-buffer cua--global-mark-marker)) | |
152 | (marker-position cua--global-mark-marker)))) | |
153 | (cua--deactivate-global-mark) | |
154 | (message "No Global Mark"))) | |
155 | ||
156 | (defun cua-cut-region-to-global-mark (start end) | |
157 | "Move region to global buffer/position." | |
158 | (interactive "r") | |
159 | (if (cua--global-mark-active) | |
160 | (let ((src-buf (current-buffer))) | |
161 | (save-excursion | |
162 | (if (equal (marker-buffer cua--global-mark-marker) src-buf) | |
163 | (if (and (< start (marker-position cua--global-mark-marker)) | |
164 | (< (marker-position cua--global-mark-marker) end)) | |
165 | (message "Can't move region into itself.") | |
166 | (let ((text (buffer-substring-no-properties start end)) | |
167 | (p1 (copy-marker start)) | |
168 | (p2 (copy-marker end))) | |
169 | (goto-char (marker-position cua--global-mark-marker)) | |
170 | (insert text) | |
171 | (cua--activate-global-mark) | |
172 | (delete-region (marker-position p1) (marker-position p2)) | |
173 | (move-marker p1 nil) | |
174 | (move-marker p2 nil))) | |
175 | (set-buffer (marker-buffer cua--global-mark-marker)) | |
176 | (goto-char (marker-position cua--global-mark-marker)) | |
177 | (insert-buffer-substring src-buf start end) | |
178 | (message "Moved %d to global mark in %s:%d" | |
179 | (abs (- end start)) | |
180 | (buffer-name (marker-buffer cua--global-mark-marker)) | |
181 | (marker-position cua--global-mark-marker)) | |
182 | (cua--activate-global-mark) | |
183 | (set-buffer src-buf) | |
184 | (delete-region start end)))) | |
185 | (cua--deactivate-global-mark) | |
186 | (message "No Global Mark"))) | |
187 | ||
188 | (defun cua--copy-rectangle-to-global-mark (as-text) | |
189 | ;; Copy rectangle to global mark buffer/position. | |
190 | (if (cua--global-mark-active) | |
191 | (let ((src-buf (current-buffer)) | |
192 | (text (cua--extract-rectangle))) | |
193 | (save-excursion | |
194 | (set-buffer (marker-buffer cua--global-mark-marker)) | |
195 | (goto-char (marker-position cua--global-mark-marker)) | |
196 | (if as-text | |
197 | (while text | |
198 | (insert-for-yank (car text)) | |
199 | (if (setq text (cdr text)) | |
200 | (insert "\n"))) | |
201 | (cua--insert-rectangle text 'auto)) | |
202 | (cua--activate-global-mark) | |
203 | (message "Copied rectangle to global mark in %s:%d" | |
204 | (buffer-name (marker-buffer cua--global-mark-marker)) | |
205 | (marker-position cua--global-mark-marker)))) | |
206 | (cua--deactivate-global-mark) | |
207 | (message "No Global Mark"))) | |
208 | ||
209 | (defun cua--cut-rectangle-to-global-mark (as-text) | |
210 | ;; Move rectangle to global buffer/position. | |
211 | (if (cua--global-mark-active) | |
212 | (let ((src-buf (current-buffer))) | |
213 | (save-excursion | |
214 | (if (equal (marker-buffer cua--global-mark-marker) src-buf) | |
215 | (let ((olist (overlays-at (marker-position cua--global-mark-marker))) | |
216 | in-rect) | |
217 | (while olist | |
218 | (if (eq (overlay-get (car olist) 'face) 'cua-rectangle-face) | |
219 | (setq in-rect t olist nil) | |
220 | (setq olist (cdr olist)))) | |
221 | (if in-rect | |
222 | (message "Can't move rectangle into itself.") | |
223 | (let ((text (cua--extract-rectangle))) | |
224 | (cua--delete-rectangle) | |
225 | (goto-char (marker-position cua--global-mark-marker)) | |
226 | (if as-text | |
227 | (while text | |
228 | (insert-for-yank (car text)) | |
229 | (if (setq text (cdr text)) | |
230 | (insert "\n"))) | |
231 | (cua--insert-rectangle text 'auto)) | |
232 | (cua--activate-global-mark)))) | |
233 | (let ((text (cua--extract-rectangle))) | |
234 | (cua--delete-rectangle) | |
235 | (set-buffer (marker-buffer cua--global-mark-marker)) | |
236 | (goto-char (marker-position cua--global-mark-marker)) | |
237 | (cua--insert-rectangle text 'auto)) | |
238 | (message "Moved rectangle to global mark in %s:%d" | |
239 | (buffer-name (marker-buffer cua--global-mark-marker)) | |
240 | (marker-position cua--global-mark-marker)) | |
241 | (cua--activate-global-mark)))) | |
242 | (cua--deactivate-global-mark) | |
243 | (message "No Global Mark"))) | |
244 | ||
245 | (defun cua-copy-to-global-mark () | |
246 | "Copy active region/rectangle to global mark buffer/position." | |
247 | (interactive) | |
248 | (setq cua--last-killed-rectangle nil) | |
249 | (if cua--rectangle | |
250 | (cua--copy-rectangle-to-global-mark nil) | |
251 | (let ((start (mark)) (end (point))) | |
252 | (or (<= start end) | |
253 | (setq start (prog1 end (setq end start)))) | |
254 | (cua-copy-region-to-global-mark start end)))) | |
255 | ||
256 | (defun cua-copy-next-to-global-mark (n) | |
257 | "Copy the following N characters in buffer to global mark buffer/position." | |
258 | (interactive "p") | |
259 | (setq cua--last-killed-rectangle nil) | |
260 | (or (eobp) | |
261 | (let ((p (point))) | |
262 | (goto-char (+ p n)) | |
263 | (cua-copy-region-to-global-mark p (point))))) | |
264 | ||
265 | (defun cua-cut-to-global-mark () | |
266 | "Move active region/rectangle to global mark buffer/position." | |
267 | (interactive) | |
268 | (if buffer-read-only | |
269 | (cua-copy-to-global-mark) | |
270 | (setq cua--last-killed-rectangle nil) | |
271 | (if cua--rectangle | |
272 | (cua--cut-rectangle-to-global-mark nil) | |
273 | (let ((start (mark)) (end (point))) | |
274 | (or (<= start end) | |
275 | (setq start (prog1 end (setq end start)))) | |
276 | (cua-cut-region-to-global-mark start end))))) | |
277 | ||
278 | (defun cua-cut-next-to-global-mark (n) | |
279 | "Move the following N characters in buffer to global mark buffer/position." | |
280 | (interactive "p") | |
281 | (setq cua--last-killed-rectangle nil) | |
282 | (or (eobp) | |
283 | (let ((p (point))) | |
284 | (goto-char (+ p n)) | |
285 | (cua-cut-region-to-global-mark p (point))))) | |
286 | ||
287 | (defun cua-delete-char-at-global-mark (arg) | |
288 | "Delete character following the global mark position." | |
289 | (interactive "p") | |
290 | (cua--delete-at-global-mark arg "Deleted")) | |
291 | ||
292 | (defun cua-delete-backward-char-at-global-mark (arg) | |
293 | "Delete character before the global mark position." | |
294 | (interactive "p") | |
295 | (cua--delete-at-global-mark (- arg) "Deleted backward")) | |
296 | ||
297 | (defun cua-insert-char-at-global-mark () | |
298 | "Insert the character you type at the global mark position." | |
299 | (interactive) | |
300 | (cua--insert-at-global-mark (char-to-string (aref (this-single-command-keys) 0)) "Inserted")) | |
301 | ||
302 | (defun cua-insert-newline-at-global-mark () | |
303 | "Insert a newline at the global mark position." | |
304 | (interactive) | |
305 | (cua--insert-at-global-mark "\n")) | |
306 | ||
307 | (defun cua-indent-to-global-mark-column () | |
308 | "Indent current line or rectangle to global mark column." | |
309 | (interactive "*") | |
310 | (if (cua--global-mark-active) | |
311 | (let (col) | |
312 | (save-excursion | |
313 | (set-buffer (marker-buffer cua--global-mark-marker)) | |
314 | (goto-char (marker-position cua--global-mark-marker)) | |
315 | (setq col (current-column))) | |
316 | (if cua--rectangle | |
317 | (cua--indent-rectangle nil col t) | |
318 | (indent-to col)) | |
319 | (if (eq (current-buffer) (marker-buffer cua--global-mark-marker)) | |
320 | (save-excursion | |
321 | (goto-char (marker-position cua--global-mark-marker)) | |
322 | (move-to-column col) | |
323 | (move-marker cua--global-mark-marker (point)) | |
324 | (move-overlay cua--global-mark-overlay (point) (1+ (point)))))))) | |
325 | ||
326 | ||
327 | (defun cua-cancel-global-mark () | |
328 | "Cancel the global mark." | |
329 | (interactive) | |
330 | (if mark-active | |
331 | (cua-cancel) | |
332 | (if (cua--global-mark-active) | |
333 | (cua--deactivate-global-mark t))) | |
334 | (cua--fallback)) | |
335 | ||
336 | ;;; Post-command hook for global mark. | |
337 | ||
338 | (defun cua--global-mark-post-command () | |
339 | (when (and (cua--global-mark-active) ;; Updates cua--global-mark-active variable | |
340 | cua-global-mark-keep-visible) | |
341 | ;; keep global mark position visible | |
342 | (sit-for 0) | |
343 | (if (or (not (eq (current-buffer) (marker-buffer cua--global-mark-marker))) | |
344 | (not (pos-visible-in-window-p (marker-position cua--global-mark-marker)))) | |
345 | (let ((w (selected-window)) (p (point)) h) | |
346 | ;; The following code is an attempt to keep the global mark visible in | |
347 | ;; other window -- but it doesn't work. | |
348 | (switch-to-buffer-other-window (marker-buffer cua--global-mark-marker) t) | |
349 | (goto-char (marker-position cua--global-mark-marker)) | |
350 | (if (not (pos-visible-in-window-p (marker-position cua--global-mark-marker))) | |
351 | (recenter (if (> (setq h (- (window-height) 4)) 1) h '(4)))) | |
352 | (select-window w) | |
353 | (goto-char p))))) | |
354 | ||
355 | ;;; Initialization | |
356 | ||
357 | (defun cua--init-global-mark () | |
358 | (unless (face-background 'cua-global-mark-face) | |
359 | (copy-face 'region 'cua-global-mark-face) | |
360 | (set-face-foreground 'cua-global-mark-face "black") | |
361 | (set-face-background 'cua-global-mark-face "cyan")) | |
362 | ||
363 | (define-key cua--global-mark-keymap [remap copy-region-as-kill] 'cua-copy-to-global-mark) | |
364 | (define-key cua--global-mark-keymap [remap kill-ring-save] 'cua-copy-to-global-mark) | |
365 | (define-key cua--global-mark-keymap [remap kill-region] 'cua-cut-to-global-mark) | |
366 | (define-key cua--global-mark-keymap [remap yank] 'cua-copy-next-to-global-mark) | |
367 | ||
368 | (define-key cua--global-mark-keymap [remap keyboard-escape-quit] 'cua-cancel-global-mark) | |
369 | (define-key cua--global-mark-keymap [remap keyboard-quit] 'cua-cancel-global-mark) | |
370 | ||
371 | (define-key cua--global-mark-keymap [(control ?d)] 'cua-cut-next-to-global-mark) | |
372 | (define-key cua--global-mark-keymap [remap delete-backward-char] 'cua-delete-backward-char-at-global-mark) | |
373 | (define-key cua--global-mark-keymap [remap backward-delete-char] 'cua-delete-backward-char-at-global-mark) | |
374 | (define-key cua--global-mark-keymap [remap backward-delete-char-untabify] 'cua-delete-backward-char-at-global-mark) | |
375 | (define-key cua--global-mark-keymap [remap self-insert-command] 'cua-insert-char-at-global-mark) | |
376 | (define-key cua--global-mark-keymap [remap self-insert-iso] 'cua-insert-char-at-global-mark) | |
377 | (define-key cua--global-mark-keymap [remap newline] 'cua-insert-newline-at-global-mark) | |
378 | (define-key cua--global-mark-keymap [remap newline-and-indent] 'cua-insert-newline-at-global-mark) | |
379 | (define-key cua--global-mark-keymap "\r" 'cua-insert-newline-at-global-mark) | |
380 | ||
381 | (define-key cua--global-mark-keymap "\t" 'cua-indent-to-global-mark-column) | |
382 | ||
383 | (setq cua--global-mark-initialized t)) | |
384 | ||
385 | ;;; cua-gmrk.el ends here |