Commit | Line | Data |
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475f9031 | 1 | ;;; ediff-wind.el --- window manipulation utilities |
b578f267 | 2 | |
ddc90f39 | 3 | ;; Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc. |
475f9031 KH |
4 | |
5 | ;; Author: Michael Kifer <kifer@cs.sunysb.edu> | |
6 | ||
7 | ;; This file is part of GNU Emacs. | |
8 | ||
9 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
10 | ;; it under the terms of the GNU General Public License as published by | |
11 | ;; the Free Software Foundation; either version 2, or (at your option) | |
12 | ;; any later version. | |
13 | ||
14 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
15 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | ;; GNU General Public License for more details. | |
18 | ||
19 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
20 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
21 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | ;; Boston, MA 02111-1307, USA. | |
475f9031 | 23 | |
b578f267 | 24 | ;;; Code: |
ddc90f39 MK |
25 | |
26 | (provide 'ediff-wind) | |
475f9031 | 27 | |
bbe6126c MK |
28 | ;; Compiler pacifier |
29 | (defvar icon-title-format) | |
30 | (defvar top-toolbar-height) | |
31 | (defvar bottom-toolbar-height) | |
32 | (defvar left-toolbar-height) | |
33 | (defvar right-toolbar-height) | |
34 | (defvar left-toolbar-width) | |
35 | (defvar right-toolbar-width) | |
36 | (defvar default-menubar) | |
37 | (defvar frame-icon-title-format) | |
ddc90f39 | 38 | (defvar ediff-diff-status) |
3af0304a | 39 | (defvar ediff-emacs-p) |
ddc90f39 MK |
40 | |
41 | (eval-when-compile | |
42 | (let ((load-path (cons (expand-file-name ".") load-path))) | |
43 | (or (featurep 'ediff-init) | |
44 | (load "ediff-init.el" nil nil 'nosuffix)) | |
45 | (or (featurep 'ediff-util) | |
46 | (load "ediff-util.el" nil nil 'nosuffix)) | |
47 | (or (featurep 'ediff-help) | |
48 | (load "ediff-help.el" nil nil 'nosuffix)) | |
49 | (or (featurep 'ediff-tbar) | |
2eb4bdca | 50 | ediff-emacs-p |
ddc90f39 MK |
51 | (load "ediff-tbar.el" 'noerror nil 'nosuffix)) |
52 | )) | |
bbe6126c MK |
53 | ;; end pacifier |
54 | ||
ddc90f39 MK |
55 | (require 'ediff-init) |
56 | ||
57 | ;; be careful with ediff-tbar | |
58 | (if ediff-xemacs-p | |
59 | (condition-case nil | |
60 | (require 'ediff-tbar) | |
61 | (error | |
62 | (defun ediff-compute-toolbar-width () 0))) | |
63 | (defun ediff-compute-toolbar-width () 0)) | |
64 | ||
65 | (defgroup ediff-window nil | |
66 | "Ediff window manipulation" | |
67 | :prefix "ediff-" | |
68 | :group 'ediff | |
69 | :group 'frames) | |
70 | ||
475f9031 | 71 | |
ddc90f39 | 72 | (defcustom ediff-window-setup-function (if (ediff-window-display-p) |
18b5607f KH |
73 | 'ediff-setup-windows-multiframe |
74 | 'ediff-setup-windows-plain) | |
475f9031 | 75 | "*Function called to set up windows. |
6628e7f8 DL |
76 | Ediff provides a choice of two functions: `ediff-setup-windows-plain', for |
77 | doing everything in one frame, and `ediff-setup-windows-multiframe', | |
3af0304a | 78 | which sets the control panel in a separate frame. Also, if the latter |
475f9031 KH |
79 | function detects that one of the buffers A/B is seen in some other frame, |
80 | it will try to keep that buffer in that frame. | |
81 | ||
82 | If you don't like the two functions provided---write your own one. | |
83 | The basic guidelines: | |
84 | 1. It should leave the control buffer current and the control window | |
6628e7f8 DL |
85 | selected. |
86 | 2. It should set `ediff-window-A', `ediff-window-B', `ediff-window-C', | |
87 | and `ediff-control-window' to contain window objects that display | |
475f9031 KH |
88 | the corresponding buffers. |
89 | 3. It should accept the following arguments: | |
90 | buffer-A, buffer-B, buffer-C, control-buffer | |
91 | Buffer C may not be used in jobs that compare only two buffers. | |
92 | If you plan to do something fancy, take a close look at how the two | |
ddc90f39 MK |
93 | provided functions are written." |
94 | :type 'function | |
95 | :group 'ediff-window) | |
475f9031 KH |
96 | |
97 | ;; indicates if we are in a multiframe setup | |
98 | (ediff-defvar-local ediff-multiframe nil "") | |
99 | ||
100 | ;; Share of the frame occupied by the merge window (buffer C) | |
101 | (ediff-defvar-local ediff-merge-window-share 0.45 "") | |
102 | ||
103 | ;; The control window. | |
104 | (ediff-defvar-local ediff-control-window nil "") | |
105 | ;; Official window for buffer A | |
106 | (ediff-defvar-local ediff-window-A nil "") | |
107 | ;; Official window for buffer B | |
108 | (ediff-defvar-local ediff-window-B nil "") | |
109 | ;; Official window for buffer C | |
110 | (ediff-defvar-local ediff-window-C nil "") | |
111 | ;; Ediff's window configuration. | |
112 | ;; Used to minimize the need to rearrange windows. | |
113 | (ediff-defvar-local ediff-window-config-saved "" "") | |
114 | ||
e756eb9f MK |
115 | ;; Association between buff-type and ediff-window-* |
116 | (defconst ediff-window-alist | |
117 | '((A . ediff-window-A) | |
118 | (?A . ediff-window-A) | |
119 | (B . ediff-window-B) | |
120 | (?B . ediff-window-B) | |
121 | (C . ediff-window-C) | |
122 | (?C . ediff-window-C))) | |
123 | ||
475f9031 | 124 | |
ddc90f39 | 125 | (defcustom ediff-split-window-function 'split-window-vertically |
475f9031 KH |
126 | "*The function used to split the main window between buffer-A and buffer-B. |
127 | You can set it to a horizontal split instead of the default vertical split | |
128 | by setting this variable to `split-window-horizontally'. | |
129 | You can also have your own function to do fancy splits. | |
130 | This variable has no effect when buffer-A/B are shown in different frames. | |
ddc90f39 MK |
131 | In this case, Ediff will use those frames to display these buffers." |
132 | :type 'function | |
133 | :group 'ediff-window) | |
475f9031 | 134 | |
ddc90f39 | 135 | (defcustom ediff-merge-split-window-function 'split-window-horizontally |
475f9031 KH |
136 | "*The function used to split the main window between buffer-A and buffer-B. |
137 | You can set it to a vertical split instead of the default horizontal split | |
138 | by setting this variable to `split-window-vertically'. | |
139 | You can also have your own function to do fancy splits. | |
140 | This variable has no effect when buffer-A/B/C are shown in different frames. | |
ddc90f39 MK |
141 | In this case, Ediff will use those frames to display these buffers." |
142 | :type 'function | |
143 | :group 'ediff-window) | |
475f9031 KH |
144 | |
145 | (defconst ediff-control-frame-parameters | |
6628e7f8 | 146 | (list |
4ae69eac MK |
147 | '(name . "Ediff") |
148 | ;;'(unsplittable . t) | |
149 | '(minibuffer . nil) | |
150 | '(user-position . t) ; Emacs only | |
151 | '(vertical-scroll-bars . nil) ; Emacs only | |
152 | '(scrollbar-width . 0) ; XEmacs only | |
153 | '(menu-bar-lines . 0) ; Emacs only | |
4ae69eac MK |
154 | ;; don't lower and auto-raise |
155 | '(auto-lower . nil) | |
156 | '(auto-raise . t) | |
3af0304a MK |
157 | '(visibility . nil) |
158 | ;; make initial frame small to avoid distraction | |
159 | '(width . 1) '(height . 1) | |
4ae69eac MK |
160 | ;; this blocks queries from window manager as to where to put |
161 | ;; ediff's control frame. we put the frame outside the display, | |
162 | ;; so the initial frame won't jump all over the screen | |
163 | (cons 'top (if (fboundp 'ediff-display-pixel-height) | |
164 | (1+ (ediff-display-pixel-height)) | |
165 | 3000)) | |
166 | (cons 'left (if (fboundp 'ediff-display-pixel-width) | |
167 | (1+ (ediff-display-pixel-width)) | |
168 | 3000)) | |
169 | ) | |
475f9031 | 170 | "Frame parameters for displaying Ediff Control Panel. |
3af0304a | 171 | Used internally---not a user option.") |
475f9031 | 172 | |
6853a937 MK |
173 | ;; position of the mouse; used to decide whether to warp the mouse into ctl |
174 | ;; frame | |
175 | (ediff-defvar-local ediff-mouse-pixel-position nil "") | |
176 | ||
177 | ;; not used for now | |
50893fe9 | 178 | (defvar ediff-mouse-pixel-threshold 30 |
6853a937 MK |
179 | "If the user moves mouse more than this many pixels, Ediff won't warp mouse into control window.") |
180 | ||
ddc90f39 | 181 | (defcustom ediff-grab-mouse t |
6853a937 MK |
182 | "*If t, Ediff will always grab the mouse and put it in the control frame. |
183 | If 'maybe, Ediff will do it sometimes, but not after operations that require | |
3af0304a | 184 | relatively long time. If nil, the mouse will be entirely user's |
ddc90f39 MK |
185 | responsibility." |
186 | :type 'boolean | |
187 | :group 'ediff-window) | |
6853a937 | 188 | |
ddc90f39 | 189 | (defcustom ediff-control-frame-position-function 'ediff-make-frame-position |
475f9031 KH |
190 | "Function to call to determine the desired location for the control panel. |
191 | Expects three parameters: the control buffer, the desired width and height | |
3af0304a | 192 | of the control frame. It returns an association list |
ddc90f39 | 193 | of the form \(\(top . <position>\) \(left . <position>\)\)" |
1e70790f | 194 | :type 'function |
ddc90f39 | 195 | :group 'ediff-window) |
475f9031 | 196 | |
3af0304a | 197 | (defcustom ediff-control-frame-upward-shift 42 |
475f9031 KH |
198 | "*The upward shift of control frame from the top of buffer A's frame. |
199 | Measured in pixels. | |
200 | This is used by the default control frame positioning function, | |
3af0304a MK |
201 | `ediff-make-frame-position'. This variable is provided for easy |
202 | customization of the default control frame positioning." | |
ddc90f39 MK |
203 | :type 'integer |
204 | :group 'ediff-window) | |
475f9031 | 205 | |
ddc90f39 | 206 | (defcustom ediff-narrow-control-frame-leftward-shift (if ediff-xemacs-p 7 3) |
475f9031 KH |
207 | "*The leftward shift of control frame from the right edge of buf A's frame. |
208 | Measured in characters. | |
209 | This is used by the default control frame positioning function, | |
210 | `ediff-make-frame-position' to adjust the position of the control frame | |
3af0304a | 211 | when it shows the short menu. This variable is provided for easy |
ddc90f39 MK |
212 | customization of the default." |
213 | :type 'integer | |
214 | :group 'ediff-window) | |
475f9031 | 215 | |
ddc90f39 | 216 | (defcustom ediff-wide-control-frame-rightward-shift 7 |
475f9031 KH |
217 | "*The rightward shift of control frame from the left edge of buf A's frame. |
218 | Measured in characters. | |
219 | This is used by the default control frame positioning function, | |
220 | `ediff-make-frame-position' to adjust the position of the control frame | |
3af0304a | 221 | when it shows the full menu. This variable is provided for easy |
ddc90f39 MK |
222 | customization of the default." |
223 | :type 'integer | |
224 | :group 'ediff-window) | |
475f9031 KH |
225 | |
226 | ||
227 | ;; Wide frame display | |
228 | ||
229 | ;; t means Ediff is using wide display | |
230 | (ediff-defvar-local ediff-wide-display-p nil "") | |
231 | ;; keeps frame config for toggling wide display | |
6628e7f8 | 232 | (ediff-defvar-local ediff-wide-display-orig-parameters nil |
475f9031 KH |
233 | "Frame parameters to be restored when the user wants to toggle the wide |
234 | display off.") | |
235 | (ediff-defvar-local ediff-wide-display-frame nil | |
236 | "Frame to be used for wide display.") | |
237 | (ediff-defvar-local ediff-make-wide-display-function 'ediff-make-wide-display | |
238 | "The value is a function that is called to create a wide display. | |
3af0304a | 239 | The function is called without arguments. It should resize the frame in |
475f9031 KH |
240 | which buffers A, B, and C are to be displayed, and it should save the old |
241 | frame parameters in `ediff-wide-display-orig-parameters'. | |
242 | The variable `ediff-wide-display-frame' should be set to contain | |
243 | the frame used for the wide display.") | |
244 | ||
245 | ;; Frame used for the control panel in a windowing system. | |
246 | (ediff-defvar-local ediff-control-frame nil "") | |
247 | ||
ddc90f39 | 248 | (defcustom ediff-prefer-iconified-control-frame nil |
475f9031 KH |
249 | "*If t, keep control panel iconified when help message is off. |
250 | This has effect only on a windowing system. | |
50893fe9 | 251 | If t, hitting `?' to toggle control panel off iconifies it. |
475f9031 KH |
252 | |
253 | This is only useful in Emacs and only for certain kinds of window managers, | |
254 | such as TWM and its derivatives, since the window manager must permit | |
3af0304a | 255 | keyboard input to go into icons. XEmacs completely ignores keyboard input |
ddc90f39 MK |
256 | into icons, regardless of the window manager." |
257 | :type 'boolean | |
258 | :group 'ediff-window) | |
475f9031 KH |
259 | |
260 | ;;; Functions | |
261 | ||
262 | (defun ediff-get-window-by-clicking (wind prev-wind wind-number) | |
263 | (let (event) | |
264 | (message | |
3af0304a | 265 | "Select windows by clicking. Please click on Window %d " wind-number) |
475f9031 KH |
266 | (while (not (ediff-mouse-event-p (setq event (ediff-read-event)))) |
267 | (if (sit-for 1) ; if sequence of events, wait till the final word | |
268 | (beep 1)) | |
269 | (message "Please click on Window %d " wind-number)) | |
270 | (ediff-read-event) ; discard event | |
271 | (setq wind (if ediff-xemacs-p | |
272 | (event-window event) | |
273 | (posn-window (event-start event)))) | |
274 | )) | |
275 | ||
276 | ||
55d7ff38 | 277 | ;; Select the lowest window on the frame. |
475f9031 | 278 | (defun ediff-select-lowest-window () |
18b5607f KH |
279 | (if ediff-xemacs-p |
280 | (select-window (frame-lowest-window)) | |
281 | (let* ((lowest-window (selected-window)) | |
282 | (bottom-edge (car (cdr (cdr (cdr (window-edges)))))) | |
283 | (last-window (save-excursion | |
284 | (other-window -1) (selected-window))) | |
285 | (window-search t)) | |
286 | (while window-search | |
287 | (let* ((this-window (next-window)) | |
288 | (next-bottom-edge | |
289 | (car (cdr (cdr (cdr (window-edges this-window))))))) | |
290 | (if (< bottom-edge next-bottom-edge) | |
291 | (progn | |
292 | (setq bottom-edge next-bottom-edge) | |
293 | (setq lowest-window this-window))) | |
294 | ||
295 | (select-window this-window) | |
296 | (if (eq last-window this-window) | |
297 | (progn | |
298 | (select-window lowest-window) | |
299 | (setq window-search nil)))))))) | |
475f9031 | 300 | |
475f9031 KH |
301 | |
302 | ;;; Common window setup routines | |
303 | ||
304 | ;; Set up the window configuration. If POS is given, set the points to | |
305 | ;; the beginnings of the buffers. | |
306 | ;; When 3way comparison is added, this will have to choose the appropriate | |
307 | ;; setup function based on ediff-job-name | |
308 | (defun ediff-setup-windows (buffer-A buffer-B buffer-C control-buffer) | |
309 | ;; Make sure we are not in the minibuffer window when we try to delete | |
310 | ;; all other windows. | |
6853a937 | 311 | (run-hooks 'ediff-before-setup-windows-hook) |
475f9031 KH |
312 | (if (eq (selected-window) (minibuffer-window)) |
313 | (other-window 1)) | |
314 | ||
18b5607f KH |
315 | ;; in case user did a no-no on a tty |
316 | (or (ediff-window-display-p) | |
317 | (setq ediff-window-setup-function 'ediff-setup-windows-plain)) | |
318 | ||
475f9031 | 319 | (or (ediff-keep-window-config control-buffer) |
6628e7f8 | 320 | (funcall |
e756eb9f | 321 | (ediff-with-current-buffer control-buffer ediff-window-setup-function) |
475f9031 | 322 | buffer-A buffer-B buffer-C control-buffer)) |
6853a937 | 323 | (run-hooks 'ediff-after-setup-windows-hook)) |
475f9031 KH |
324 | |
325 | ;; Just set up 3 windows. | |
326 | ;; Usually used without windowing systems | |
327 | ;; With windowing, we want to use dedicated frames. | |
328 | (defun ediff-setup-windows-plain (buffer-A buffer-B buffer-C control-buffer) | |
e756eb9f | 329 | (ediff-with-current-buffer control-buffer |
475f9031 KH |
330 | (setq ediff-multiframe nil)) |
331 | (if ediff-merge-job | |
332 | (ediff-setup-windows-plain-merge | |
333 | buffer-A buffer-B buffer-C control-buffer) | |
6628e7f8 | 334 | (ediff-setup-windows-plain-compare |
475f9031 KH |
335 | buffer-A buffer-B buffer-C control-buffer))) |
336 | ||
337 | (defun ediff-setup-windows-plain-merge (buf-A buf-B buf-C control-buffer) | |
18b5607f KH |
338 | ;; skip dedicated and unsplittable frames |
339 | (ediff-destroy-control-frame control-buffer) | |
4ae69eac | 340 | (let ((window-min-height 1) |
6628e7f8 | 341 | split-window-function |
475f9031 KH |
342 | merge-window-share merge-window-lines |
343 | wind-A wind-B wind-C) | |
e756eb9f | 344 | (ediff-with-current-buffer control-buffer |
475f9031 KH |
345 | (setq merge-window-share ediff-merge-window-share |
346 | ;; this lets us have local versions of ediff-split-window-function | |
347 | split-window-function ediff-split-window-function)) | |
348 | (delete-other-windows) | |
349 | (split-window-vertically) | |
350 | (ediff-select-lowest-window) | |
351 | (ediff-setup-control-buffer control-buffer) | |
352 | ||
353 | ;; go to the upper window and split it betw A, B, and possibly C | |
6628e7f8 | 354 | (other-window 1) |
475f9031 KH |
355 | (setq merge-window-lines |
356 | (max 2 (round (* (window-height) merge-window-share)))) | |
357 | (switch-to-buffer buf-A) | |
358 | (setq wind-A (selected-window)) | |
359 | ||
6853a937 MK |
360 | ;; XEmacs used to have a lot of trouble with display |
361 | ;; It did't set things right unless we tell it to sit still | |
362 | ;; 19.12 seems ok. | |
363 | ;;(if ediff-xemacs-p (sit-for 0)) | |
475f9031 KH |
364 | |
365 | (split-window-vertically (max 2 (- (window-height) merge-window-lines))) | |
6628e7f8 | 366 | (if (eq (selected-window) wind-A) |
475f9031 KH |
367 | (other-window 1)) |
368 | (setq wind-C (selected-window)) | |
369 | (switch-to-buffer buf-C) | |
370 | ||
371 | (select-window wind-A) | |
372 | (funcall split-window-function) | |
373 | ||
374 | (if (eq (selected-window) wind-A) | |
375 | (other-window 1)) | |
376 | (switch-to-buffer buf-B) | |
377 | (setq wind-B (selected-window)) | |
378 | ||
e756eb9f | 379 | (ediff-with-current-buffer control-buffer |
475f9031 KH |
380 | (setq ediff-window-A wind-A |
381 | ediff-window-B wind-B | |
382 | ediff-window-C wind-C)) | |
383 | ||
384 | (ediff-select-lowest-window) | |
385 | (ediff-setup-control-buffer control-buffer) | |
386 | )) | |
387 | ||
388 | ||
389 | ;; This function handles all comparison jobs, including 3way jobs | |
390 | (defun ediff-setup-windows-plain-compare (buf-A buf-B buf-C control-buffer) | |
391 | ;; skip dedicated and unsplittable frames | |
18b5607f | 392 | (ediff-destroy-control-frame control-buffer) |
4ae69eac | 393 | (let ((window-min-height 1) |
475f9031 KH |
394 | split-window-function wind-width-or-height |
395 | three-way-comparison | |
18b5607f | 396 | wind-A-start wind-B-start wind-A wind-B wind-C) |
e756eb9f | 397 | (ediff-with-current-buffer control-buffer |
475f9031 KH |
398 | (setq wind-A-start (ediff-overlay-start |
399 | (ediff-get-value-according-to-buffer-type | |
400 | 'A ediff-narrow-bounds)) | |
401 | wind-B-start (ediff-overlay-start | |
402 | (ediff-get-value-according-to-buffer-type | |
403 | 'B ediff-narrow-bounds)) | |
475f9031 KH |
404 | ;; this lets us have local versions of ediff-split-window-function |
405 | split-window-function ediff-split-window-function | |
406 | three-way-comparison ediff-3way-comparison-job)) | |
407 | (delete-other-windows) | |
408 | (split-window-vertically) | |
409 | (ediff-select-lowest-window) | |
410 | (ediff-setup-control-buffer control-buffer) | |
411 | ||
412 | ;; go to the upper window and split it betw A, B, and possibly C | |
6628e7f8 | 413 | (other-window 1) |
475f9031 KH |
414 | (switch-to-buffer buf-A) |
415 | (setq wind-A (selected-window)) | |
416 | (if three-way-comparison | |
417 | (setq wind-width-or-height | |
418 | (/ (if (eq split-window-function 'split-window-vertically) | |
419 | (window-height wind-A) | |
420 | (window-width wind-A)) | |
421 | 3))) | |
422 | ||
6853a937 MK |
423 | ;; XEmacs used to have a lot of trouble with display |
424 | ;; It did't set things right unless we told it to sit still | |
425 | ;; 19.12 seems ok. | |
426 | ;;(if ediff-xemacs-p (sit-for 0)) | |
475f9031 KH |
427 | |
428 | (funcall split-window-function wind-width-or-height) | |
429 | ||
430 | (if (eq (selected-window) wind-A) | |
431 | (other-window 1)) | |
432 | (switch-to-buffer buf-B) | |
433 | (setq wind-B (selected-window)) | |
434 | ||
435 | (if three-way-comparison | |
436 | (progn | |
437 | (funcall split-window-function) ; equally | |
438 | (if (eq (selected-window) wind-B) | |
439 | (other-window 1)) | |
440 | (switch-to-buffer buf-C) | |
441 | (setq wind-C (selected-window)))) | |
442 | ||
e756eb9f | 443 | (ediff-with-current-buffer control-buffer |
475f9031 KH |
444 | (setq ediff-window-A wind-A |
445 | ediff-window-B wind-B | |
446 | ediff-window-C wind-C)) | |
447 | ||
448 | ;; It is unlikely that we will want to implement 3way window comparison. | |
449 | ;; So, only buffers A and B are used here. | |
18b5607f | 450 | (if ediff-windows-job |
475f9031 KH |
451 | (progn |
452 | (set-window-start wind-A wind-A-start) | |
453 | (set-window-start wind-B wind-B-start))) | |
454 | ||
455 | (ediff-select-lowest-window) | |
456 | (ediff-setup-control-buffer control-buffer) | |
457 | )) | |
458 | ||
459 | ||
4ae69eac | 460 | ;; dispatch an appropriate window setup function |
475f9031 | 461 | (defun ediff-setup-windows-multiframe (buf-A buf-B buf-C control-buf) |
e756eb9f | 462 | (ediff-with-current-buffer control-buf |
475f9031 KH |
463 | (setq ediff-multiframe t)) |
464 | (if ediff-merge-job | |
465 | (ediff-setup-windows-multiframe-merge buf-A buf-B buf-C control-buf) | |
466 | (ediff-setup-windows-multiframe-compare buf-A buf-B buf-C control-buf))) | |
467 | ||
468 | (defun ediff-setup-windows-multiframe-merge (buf-A buf-B buf-C control-buf) | |
469 | ;;; Algorithm: | |
bbe6126c MK |
470 | ;;; 1. Never use frames that have dedicated windows in them---it is bad to |
471 | ;;; destroy dedicated windows. | |
472 | ;;; 2. If A and B are in the same frame but C's frame is different--- use one | |
6628e7f8 | 473 | ;;; frame for A and B and use a separate frame for C. |
bbe6126c MK |
474 | ;;; 3. If C's frame is non-existent, then: if the first suitable |
475 | ;;; non-dedicated frame is different from A&B's, then use it for C. | |
476 | ;;; Otherwise, put A,B, and C in one frame. | |
477 | ;;; 4. If buffers A, B, C are is separate frames, use them to display these | |
478 | ;;; buffers. | |
475f9031 | 479 | |
6628e7f8 | 480 | ;; Skip dedicated or iconified frames. |
18b5607f | 481 | ;; Unsplittable frames are taken care of later. |
475f9031 KH |
482 | (ediff-skip-unsuitable-frames 'ok-unsplittable) |
483 | ||
4ae69eac | 484 | (let* ((window-min-height 1) |
475f9031 KH |
485 | (wind-A (ediff-get-visible-buffer-window buf-A)) |
486 | (wind-B (ediff-get-visible-buffer-window buf-B)) | |
487 | (wind-C (ediff-get-visible-buffer-window buf-C)) | |
18b5607f KH |
488 | (frame-A (if wind-A (window-frame wind-A))) |
489 | (frame-B (if wind-B (window-frame wind-B))) | |
490 | (frame-C (if wind-C (window-frame wind-C))) | |
475f9031 | 491 | ;; on wide display, do things in one frame |
6628e7f8 | 492 | (force-one-frame |
e756eb9f | 493 | (ediff-with-current-buffer control-buf ediff-wide-display-p)) |
475f9031 | 494 | ;; this lets us have local versions of ediff-split-window-function |
6628e7f8 | 495 | (split-window-function |
e756eb9f | 496 | (ediff-with-current-buffer control-buf ediff-split-window-function)) |
475f9031 | 497 | (orig-wind (selected-window)) |
18b5607f | 498 | (orig-frame (selected-frame)) |
475f9031 | 499 | (use-same-frame (or force-one-frame |
bbe6126c | 500 | ;; A and C must be in one frame |
475f9031 | 501 | (eq frame-A (or frame-C orig-frame)) |
bbe6126c | 502 | ;; B and C must be in one frame |
475f9031 | 503 | (eq frame-B (or frame-C orig-frame)) |
bbe6126c | 504 | ;; A or B is not visible |
18b5607f KH |
505 | (not (frame-live-p frame-A)) |
506 | (not (frame-live-p frame-B)) | |
bbe6126c MK |
507 | ;; A or B is not suitable for display |
508 | (not (ediff-window-ok-for-display wind-A)) | |
509 | (not (ediff-window-ok-for-display wind-B)) | |
510 | ;; A and B in the same frame, and no good frame | |
511 | ;; for C | |
18b5607f KH |
512 | (and (eq frame-A frame-B) |
513 | (not (frame-live-p frame-C))) | |
475f9031 | 514 | )) |
bbe6126c | 515 | ;; use-same-frame-for-AB implies wind A and B are ok for display |
475f9031 KH |
516 | (use-same-frame-for-AB (and (not use-same-frame) |
517 | (eq frame-A frame-B))) | |
e756eb9f | 518 | (merge-window-share (ediff-with-current-buffer control-buf |
475f9031 KH |
519 | ediff-merge-window-share)) |
520 | merge-window-lines | |
521 | designated-minibuffer-frame | |
522 | done-A done-B done-C) | |
523 | ||
524 | ;; buf-A on its own | |
525 | (if (and (window-live-p wind-A) | |
bbe6126c | 526 | (null use-same-frame) ; implies wind-A is suitable |
475f9031 | 527 | (null use-same-frame-for-AB)) |
bbe6126c MK |
528 | (progn ; bug A on its own |
529 | ;; buffer buf-A is seen in live wind-A | |
475f9031 KH |
530 | (select-window wind-A) |
531 | (delete-other-windows) | |
475f9031 KH |
532 | (setq wind-A (selected-window)) |
533 | (setq done-A t))) | |
534 | ||
535 | ;; buf-B on its own | |
bbe6126c MK |
536 | (if (and (window-live-p wind-B) |
537 | (null use-same-frame) ; implies wind-B is suitable | |
538 | (null use-same-frame-for-AB)) | |
539 | (progn ; buf B on its own | |
540 | ;; buffer buf-B is seen in live wind-B | |
475f9031 KH |
541 | (select-window wind-B) |
542 | (delete-other-windows) | |
475f9031 KH |
543 | (setq wind-B (selected-window)) |
544 | (setq done-B t))) | |
545 | ||
546 | ;; buf-C on its own | |
bbe6126c MK |
547 | (if (and (window-live-p wind-C) |
548 | (ediff-window-ok-for-display wind-C) | |
549 | (null use-same-frame)) ; buf C on its own | |
475f9031 | 550 | (progn |
bbe6126c | 551 | ;; buffer buf-C is seen in live wind-C |
475f9031 KH |
552 | (select-window wind-C) |
553 | (delete-other-windows) | |
475f9031 KH |
554 | (setq wind-C (selected-window)) |
555 | (setq done-C t))) | |
556 | ||
bbe6126c MK |
557 | (if (and use-same-frame-for-AB ; implies wind A and B are suitable |
558 | (window-live-p wind-A)) | |
6628e7f8 | 559 | (progn |
bbe6126c MK |
560 | ;; wind-A must already be displaying buf-A |
561 | (select-window wind-A) | |
475f9031 KH |
562 | (delete-other-windows) |
563 | (setq wind-A (selected-window)) | |
564 | ||
565 | (funcall split-window-function) | |
6628e7f8 | 566 | (if (eq (selected-window) wind-A) |
475f9031 KH |
567 | (other-window 1)) |
568 | (switch-to-buffer buf-B) | |
569 | (setq wind-B (selected-window)) | |
570 | ||
571 | (setq done-A t | |
572 | done-B t))) | |
573 | ||
574 | (if use-same-frame | |
bbe6126c | 575 | (let ((window-min-height 1)) |
ddc90f39 MK |
576 | (if (and (eq frame-A frame-B) |
577 | (eq frame-B frame-C) | |
578 | (frame-live-p frame-A)) | |
579 | (select-frame frame-A) | |
580 | ;; avoid dedicated and non-splittable windows | |
581 | (ediff-skip-unsuitable-frames)) | |
475f9031 KH |
582 | (delete-other-windows) |
583 | (setq merge-window-lines | |
584 | (max 2 (round (* (window-height) merge-window-share)))) | |
585 | (switch-to-buffer buf-A) | |
586 | (setq wind-A (selected-window)) | |
587 | ||
475f9031 KH |
588 | (split-window-vertically |
589 | (max 2 (- (window-height) merge-window-lines))) | |
6628e7f8 | 590 | (if (eq (selected-window) wind-A) |
475f9031 KH |
591 | (other-window 1)) |
592 | (setq wind-C (selected-window)) | |
593 | (switch-to-buffer buf-C) | |
594 | ||
595 | (select-window wind-A) | |
596 | ||
597 | (funcall split-window-function) | |
6628e7f8 | 598 | (if (eq (selected-window) wind-A) |
475f9031 KH |
599 | (other-window 1)) |
600 | (switch-to-buffer buf-B) | |
601 | (setq wind-B (selected-window)) | |
602 | ||
603 | (setq done-A t | |
604 | done-B t | |
605 | done-C t) | |
606 | )) | |
607 | ||
bbe6126c MK |
608 | (or done-A ; Buf A to be set in its own frame, |
609 | ;;; or it was set before because use-same-frame = 1 | |
610 | (progn | |
611 | ;; Buf-A was not set up yet as it wasn't visible, | |
612 | ;; and use-same-frame = nil, use-same-frame-for-AB = nil | |
475f9031 KH |
613 | (select-window orig-wind) |
614 | (delete-other-windows) | |
615 | (switch-to-buffer buf-A) | |
616 | (setq wind-A (selected-window)) | |
617 | )) | |
bbe6126c MK |
618 | (or done-B ; Buf B to be set in its own frame, |
619 | ;;; or it was set before because use-same-frame = 1 | |
620 | (progn | |
621 | ;; Buf-B was not set up yet as it wasn't visible | |
622 | ;; and use-same-frame = nil, use-same-frame-for-AB = nil | |
475f9031 KH |
623 | (select-window orig-wind) |
624 | (delete-other-windows) | |
625 | (switch-to-buffer buf-B) | |
626 | (setq wind-B (selected-window)) | |
627 | )) | |
628 | ||
bbe6126c MK |
629 | (or done-C ; Buf C to be set in its own frame, |
630 | ;;; or it was set before because use-same-frame = 1 | |
631 | (progn | |
632 | ;; Buf-C was not set up yet as it wasn't visible | |
633 | ;; and use-same-frame = nil | |
475f9031 KH |
634 | (select-window orig-wind) |
635 | (delete-other-windows) | |
636 | (switch-to-buffer buf-C) | |
637 | (setq wind-C (selected-window)) | |
638 | )) | |
639 | ||
e756eb9f | 640 | (ediff-with-current-buffer control-buf |
475f9031 KH |
641 | (setq ediff-window-A wind-A |
642 | ediff-window-B wind-B | |
643 | ediff-window-C wind-C) | |
18b5607f KH |
644 | (setq frame-A (window-frame ediff-window-A) |
645 | designated-minibuffer-frame | |
646 | (window-frame (minibuffer-window frame-A)))) | |
647 | ||
648 | (ediff-setup-control-frame control-buf designated-minibuffer-frame) | |
475f9031 KH |
649 | )) |
650 | ||
651 | ||
652 | ;; Window setup for all comparison jobs, including 3way comparisons | |
653 | (defun ediff-setup-windows-multiframe-compare (buf-A buf-B buf-C control-buf) | |
654 | ;;; Algorithm: | |
6628e7f8 | 655 | ;;; If a buffer is seen in a frame, use that frame for that buffer. |
475f9031 KH |
656 | ;;; If it is not seen, use the current frame. |
657 | ;;; If both buffers are not seen, they share the current frame. If one | |
658 | ;;; of the buffers is not seen, it is placed in the current frame (where | |
3af0304a | 659 | ;;; ediff started). If that frame is displaying the other buffer, it is |
475f9031 KH |
660 | ;;; shared between the two buffers. |
661 | ;;; However, if we decide to put both buffers in one frame | |
662 | ;;; and the selected frame isn't splittable, we create a new frame and | |
663 | ;;; put both buffers there, event if one of this buffers is visible in | |
664 | ;;; another frame. | |
665 | ||
666 | ;; Skip dedicated or iconified frames. | |
667 | ;; Unsplittable frames are taken care of later. | |
668 | (ediff-skip-unsuitable-frames 'ok-unsplittable) | |
669 | ||
4ae69eac | 670 | (let* ((window-min-height 1) |
475f9031 KH |
671 | (wind-A (ediff-get-visible-buffer-window buf-A)) |
672 | (wind-B (ediff-get-visible-buffer-window buf-B)) | |
673 | (wind-C (ediff-get-visible-buffer-window buf-C)) | |
18b5607f KH |
674 | (frame-A (if wind-A (window-frame wind-A))) |
675 | (frame-B (if wind-B (window-frame wind-B))) | |
676 | (frame-C (if wind-C (window-frame wind-C))) | |
e756eb9f | 677 | (ctl-frame-exists-p (ediff-with-current-buffer control-buf |
18b5607f | 678 | (frame-live-p ediff-control-frame))) |
475f9031 | 679 | ;; on wide display, do things in one frame |
6628e7f8 | 680 | (force-one-frame |
e756eb9f | 681 | (ediff-with-current-buffer control-buf ediff-wide-display-p)) |
475f9031 | 682 | ;; this lets us have local versions of ediff-split-window-function |
6628e7f8 | 683 | (split-window-function |
e756eb9f | 684 | (ediff-with-current-buffer control-buf ediff-split-window-function)) |
475f9031 | 685 | (three-way-comparison |
e756eb9f | 686 | (ediff-with-current-buffer control-buf ediff-3way-comparison-job)) |
475f9031 KH |
687 | (orig-wind (selected-window)) |
688 | (use-same-frame (or force-one-frame | |
689 | (eq frame-A frame-B) | |
bbe6126c MK |
690 | (not (ediff-window-ok-for-display wind-A)) |
691 | (not (ediff-window-ok-for-display wind-B)) | |
475f9031 KH |
692 | (if three-way-comparison |
693 | (or (eq frame-A frame-C) | |
694 | (eq frame-B frame-C) | |
bbe6126c | 695 | (not (ediff-window-ok-for-display wind-C)) |
18b5607f KH |
696 | (not (frame-live-p frame-A)) |
697 | (not (frame-live-p frame-B)) | |
698 | (not (frame-live-p frame-C)))) | |
699 | (and (not (frame-live-p frame-B)) | |
475f9031 | 700 | (or ctl-frame-exists-p |
18b5607f KH |
701 | (eq frame-A (selected-frame)))) |
702 | (and (not (frame-live-p frame-A)) | |
475f9031 | 703 | (or ctl-frame-exists-p |
18b5607f | 704 | (eq frame-B (selected-frame)))))) |
6628e7f8 | 705 | wind-A-start wind-B-start |
475f9031 KH |
706 | designated-minibuffer-frame |
707 | done-A done-B done-C) | |
708 | ||
e756eb9f | 709 | (ediff-with-current-buffer control-buf |
475f9031 KH |
710 | (setq wind-A-start (ediff-overlay-start |
711 | (ediff-get-value-according-to-buffer-type | |
712 | 'A ediff-narrow-bounds)) | |
713 | wind-B-start (ediff-overlay-start | |
714 | (ediff-get-value-according-to-buffer-type | |
18b5607f | 715 | 'B ediff-narrow-bounds)))) |
475f9031 KH |
716 | |
717 | (if (and (window-live-p wind-A) (null use-same-frame)) ; buf-A on its own | |
718 | (progn | |
bbe6126c MK |
719 | ;; buffer buf-A is seen in live wind-A |
720 | (select-window wind-A) ; must be displaying buf-A | |
475f9031 | 721 | (delete-other-windows) |
475f9031 KH |
722 | (setq wind-A (selected-window)) |
723 | (setq done-A t))) | |
724 | ||
725 | (if (and (window-live-p wind-B) (null use-same-frame)) ; buf B on its own | |
726 | (progn | |
bbe6126c MK |
727 | ;; buffer buf-B is seen in live wind-B |
728 | (select-window wind-B) ; must be displaying buf-B | |
475f9031 | 729 | (delete-other-windows) |
475f9031 KH |
730 | (setq wind-B (selected-window)) |
731 | (setq done-B t))) | |
732 | ||
733 | (if (and (window-live-p wind-C) (null use-same-frame)) ; buf C on its own | |
734 | (progn | |
bbe6126c MK |
735 | ;; buffer buf-C is seen in live wind-C |
736 | (select-window wind-C) ; must be displaying buf-C | |
475f9031 | 737 | (delete-other-windows) |
475f9031 KH |
738 | (setq wind-C (selected-window)) |
739 | (setq done-C t))) | |
740 | ||
741 | (if use-same-frame | |
bbe6126c | 742 | (let (wind-width-or-height) ; this affects 3way setups only |
ddc90f39 MK |
743 | (if (and (eq frame-A frame-B) (frame-live-p frame-A)) |
744 | (select-frame frame-A) | |
745 | ;; avoid dedicated and non-splittable windows | |
746 | (ediff-skip-unsuitable-frames)) | |
475f9031 KH |
747 | (delete-other-windows) |
748 | (switch-to-buffer buf-A) | |
749 | (setq wind-A (selected-window)) | |
750 | ||
475f9031 KH |
751 | (if three-way-comparison |
752 | (setq wind-width-or-height | |
753 | (/ | |
754 | (if (eq split-window-function 'split-window-vertically) | |
755 | (window-height wind-A) | |
756 | (window-width wind-A)) | |
757 | 3))) | |
758 | ||
759 | (funcall split-window-function wind-width-or-height) | |
6628e7f8 | 760 | (if (eq (selected-window) wind-A) |
475f9031 KH |
761 | (other-window 1)) |
762 | (switch-to-buffer buf-B) | |
763 | (setq wind-B (selected-window)) | |
764 | ||
765 | (if three-way-comparison | |
766 | (progn | |
767 | (funcall split-window-function) ; equally | |
768 | (if (memq (selected-window) (list wind-A wind-B)) | |
769 | (other-window 1)) | |
770 | (switch-to-buffer buf-C) | |
771 | (setq wind-C (selected-window)))) | |
772 | (setq done-A t | |
773 | done-B t | |
774 | done-C t) | |
775 | )) | |
776 | ||
777 | (or done-A ; Buf A to be set in its own frame | |
bbe6126c | 778 | ;;; or it was set before because use-same-frame = 1 |
6628e7f8 | 779 | (progn |
bbe6126c MK |
780 | ;; Buf-A was not set up yet as it wasn't visible, |
781 | ;; and use-same-frame = nil | |
475f9031 KH |
782 | (select-window orig-wind) |
783 | (delete-other-windows) | |
784 | (switch-to-buffer buf-A) | |
785 | (setq wind-A (selected-window)) | |
786 | )) | |
787 | (or done-B ; Buf B to be set in its own frame | |
bbe6126c | 788 | ;;; or it was set before because use-same-frame = 1 |
6628e7f8 | 789 | (progn |
bbe6126c MK |
790 | ;; Buf-B was not set up yet as it wasn't visible, |
791 | ;; and use-same-frame = nil | |
475f9031 KH |
792 | (select-window orig-wind) |
793 | (delete-other-windows) | |
794 | (switch-to-buffer buf-B) | |
795 | (setq wind-B (selected-window)) | |
796 | )) | |
797 | ||
798 | (if three-way-comparison | |
799 | (or done-C ; Buf C to be set in its own frame | |
bbe6126c | 800 | ;;; or it was set before because use-same-frame = 1 |
6628e7f8 | 801 | (progn |
bbe6126c MK |
802 | ;; Buf-C was not set up yet as it wasn't visible, |
803 | ;; and use-same-frame = nil | |
475f9031 KH |
804 | (select-window orig-wind) |
805 | (delete-other-windows) | |
806 | (switch-to-buffer buf-C) | |
807 | (setq wind-C (selected-window)) | |
808 | ))) | |
809 | ||
e756eb9f | 810 | (ediff-with-current-buffer control-buf |
475f9031 KH |
811 | (setq ediff-window-A wind-A |
812 | ediff-window-B wind-B | |
813 | ediff-window-C wind-C) | |
18b5607f KH |
814 | |
815 | (setq frame-A (window-frame ediff-window-A) | |
816 | designated-minibuffer-frame | |
817 | (window-frame (minibuffer-window frame-A)))) | |
475f9031 | 818 | |
bbe6126c | 819 | ;; It is unlikely that we'll implement a version of ediff-windows that |
3af0304a | 820 | ;; would compare 3 windows at once. So, we don't use buffer C here. |
18b5607f | 821 | (if ediff-windows-job |
475f9031 KH |
822 | (progn |
823 | (set-window-start wind-A wind-A-start) | |
824 | (set-window-start wind-B wind-B-start))) | |
825 | ||
18b5607f | 826 | (ediff-setup-control-frame control-buf designated-minibuffer-frame) |
475f9031 KH |
827 | )) |
828 | ||
bbe6126c | 829 | ;; skip unsplittable frames and frames that have dedicated windows. |
475f9031 KH |
830 | ;; create a new splittable frame if none is found |
831 | (defun ediff-skip-unsuitable-frames (&optional ok-unsplittable) | |
18b5607f | 832 | (if (ediff-window-display-p) |
657f9cb8 MK |
833 | ;;(let (last-window) |
834 | (let (seen-windows) | |
835 | ;; (memq ... seen-windows) has quadratic behavior, | |
836 | ;; but (eq ... last-window) runs into an emacs bug where next-window | |
837 | ;; gets stuck in a loop if the only frame is the minibuffer. | |
838 | ;; | |
839 | ;;(while (and (not (eq (selected-window) last-window)) | |
840 | (while (and (not (memq (selected-window) seen-windows)) | |
475f9031 | 841 | (or |
bbe6126c | 842 | (ediff-frame-has-dedicated-windows (selected-frame)) |
18b5607f | 843 | (ediff-frame-iconified-p (selected-frame)) |
3af0304a | 844 | ;; skip small frames |
4ae69eac MK |
845 | (< (frame-height (selected-frame)) |
846 | (* 3 window-min-height)) | |
3af0304a MK |
847 | ;; skip small windows |
848 | (< (window-height (selected-window)) | |
849 | (* 3 window-min-height)) | |
475f9031 KH |
850 | (if ok-unsplittable |
851 | nil | |
18b5607f | 852 | (ediff-frame-unsplittable-p (selected-frame))))) |
475f9031 | 853 | ;; remember where started |
657f9cb8 MK |
854 | ;;(or last-window (setq last-window (selected-window))) |
855 | (setq seen-windows (cons (selected-window) seen-windows)) | |
475f9031 KH |
856 | ;; try new window |
857 | (other-window 1 t)) | |
657f9cb8 MK |
858 | ;;(if (eq (selected-window) last-window) |
859 | (if (memq (selected-window) seen-windows) | |
475f9031 KH |
860 | ;; fed up, no appropriate frame |
861 | (progn | |
f9d5a20f | 862 | (select-frame (make-frame '((unsplittable))))))))) |
475f9031 | 863 | |
bbe6126c MK |
864 | (defun ediff-frame-has-dedicated-windows (frame) |
865 | (let ((cur-fr (selected-frame)) | |
866 | ans) | |
867 | (select-frame frame) | |
868 | (walk-windows | |
3af0304a MK |
869 | (lambda (wind) (if (window-dedicated-p wind) |
870 | (setq ans t))) | |
bbe6126c MK |
871 | 'ignore-minibuffer |
872 | frame) | |
873 | (select-frame cur-fr) | |
874 | ans)) | |
875 | ||
876 | ;; window is ok, if it is only one window on the frame, not counting the | |
877 | ;; minibuffer, or none of the frame's windows is dedicated. | |
878 | ;; The idea is that it is bad to destroy dedicated windows while creating an | |
879 | ;; ediff window setup | |
880 | (defun ediff-window-ok-for-display (wind) | |
881 | (and | |
882 | (window-live-p wind) | |
6628e7f8 | 883 | (or |
bbe6126c MK |
884 | ;; only one window |
885 | (eq wind (next-window wind 'ignore-minibuffer (window-frame wind))) | |
886 | ;; none is dedicated | |
887 | (not (ediff-frame-has-dedicated-windows (window-frame wind))) | |
888 | ))) | |
889 | ||
475f9031 | 890 | ;; Prepare or refresh control frame |
18b5607f | 891 | (defun ediff-setup-control-frame (ctl-buffer designated-minibuffer-frame) |
4ae69eac | 892 | (let ((window-min-height 1) |
475f9031 | 893 | ctl-frame-iconified-p dont-iconify-ctl-frame deiconify-ctl-frame |
6628e7f8 | 894 | ctl-frame old-ctl-frame lines |
bbe6126c | 895 | ;; user-grabbed-mouse |
6628e7f8 | 896 | fheight fwidth adjusted-parameters) |
475f9031 | 897 | |
e756eb9f | 898 | (ediff-with-current-buffer ctl-buffer |
18b5607f | 899 | (if ediff-xemacs-p (set-buffer-menubar nil)) |
6853a937 MK |
900 | ;;(setq user-grabbed-mouse (ediff-user-grabbed-mouse)) |
901 | (run-hooks 'ediff-before-setup-control-frame-hook)) | |
475f9031 | 902 | |
e756eb9f MK |
903 | (setq old-ctl-frame (ediff-with-current-buffer ctl-buffer ediff-control-frame)) |
904 | (ediff-with-current-buffer ctl-buffer | |
4ae69eac MK |
905 | (setq ctl-frame (if (frame-live-p old-ctl-frame) |
906 | old-ctl-frame | |
907 | (make-frame ediff-control-frame-parameters)) | |
bbe14ff4 GM |
908 | ediff-control-frame ctl-frame) |
909 | (when (and ediff-emacs-p (face-attribute 'mode-line :box)) | |
910 | (set-face-attribute 'mode-line ctl-frame :box nil))) | |
475f9031 KH |
911 | |
912 | (setq ctl-frame-iconified-p (ediff-frame-iconified-p ctl-frame)) | |
18b5607f | 913 | (select-frame ctl-frame) |
475f9031 KH |
914 | (if (window-dedicated-p (selected-window)) |
915 | () | |
916 | (delete-other-windows) | |
917 | (switch-to-buffer ctl-buffer)) | |
918 | ||
919 | ;; must be before ediff-setup-control-buffer | |
6853a937 | 920 | ;; just a precaution--we should be in ctl-buffer already |
e756eb9f | 921 | (ediff-with-current-buffer ctl-buffer |
6853a937 MK |
922 | (make-local-variable 'frame-title-format) |
923 | (make-local-variable 'frame-icon-title-format) ; XEmacs | |
924 | (make-local-variable 'icon-title-format)) ; Emacs | |
475f9031 KH |
925 | |
926 | (ediff-setup-control-buffer ctl-buffer) | |
927 | (setq dont-iconify-ctl-frame | |
928 | (not (string= ediff-help-message ediff-brief-help-message))) | |
6628e7f8 | 929 | (setq deiconify-ctl-frame |
475f9031 KH |
930 | (and (eq this-command 'ediff-toggle-help) |
931 | dont-iconify-ctl-frame)) | |
932 | ||
933 | ;; 1 more line for the modeline | |
4ae69eac | 934 | (setq lines (1+ (count-lines (point-min) (point-max))) |
475f9031 | 935 | fheight lines |
bf5d92c5 MK |
936 | fwidth (max (+ (ediff-help-message-line-length) 2) |
937 | (ediff-compute-toolbar-width)) | |
ddc90f39 MK |
938 | adjusted-parameters |
939 | (list | |
940 | ;; possibly change surrogate minibuffer | |
941 | (cons 'minibuffer | |
942 | (minibuffer-window | |
943 | designated-minibuffer-frame)) | |
944 | (cons 'width fwidth) | |
945 | (cons 'height fheight)) | |
946 | ) | |
4ae69eac | 947 | (if ediff-use-long-help-message |
6853a937 MK |
948 | (setq adjusted-parameters |
949 | (cons '(auto-raise . nil) adjusted-parameters))) | |
475f9031 KH |
950 | |
951 | ;; In XEmacs, buffer menubar needs to be killed before frame parameters | |
6628e7f8 | 952 | ;; are changed. |
2eb4bdca | 953 | (if (ediff-has-toolbar-support-p) |
18b5607f | 954 | (progn |
ddc90f39 MK |
955 | (set-specifier top-toolbar-height (list ctl-frame 2)) |
956 | (sit-for 0) | |
18b5607f | 957 | (set-specifier top-toolbar-height (list ctl-frame 0)) |
ddc90f39 | 958 | ;;(set-specifier bottom-toolbar-height (list ctl-frame 0)) |
18b5607f KH |
959 | (set-specifier left-toolbar-width (list ctl-frame 0)) |
960 | (set-specifier right-toolbar-width (list ctl-frame 0)) | |
6853a937 | 961 | )) |
475f9031 | 962 | |
4ae69eac | 963 | ;; Under OS/2 (emx) we have to call modify frame parameters twice, in order |
3af0304a | 964 | ;; to make sure that at least once we do it for non-iconified frame. If |
4ae69eac | 965 | ;; appears that in the OS/2 port of Emacs, one can't modify frame |
3af0304a | 966 | ;; parameters of iconified frames. As a precaution, we do likewise for |
4ae69eac MK |
967 | ;; windows-nt. |
968 | (if (memq system-type '(emx windows-nt windows-95)) | |
18b5607f | 969 | (modify-frame-parameters ctl-frame adjusted-parameters)) |
475f9031 | 970 | |
ddc90f39 MK |
971 | ;; make or zap toolbar (if not requested) |
972 | (ediff-make-bottom-toolbar ctl-frame) | |
475f9031 | 973 | |
ddc90f39 MK |
974 | (goto-char (point-min)) |
975 | ||
6853a937 | 976 | (modify-frame-parameters ctl-frame adjusted-parameters) |
bbe6126c | 977 | (make-frame-visible ctl-frame) |
475f9031 | 978 | |
3af0304a | 979 | ;; This works around a bug in 19.25 and earlier. There, if frame gets |
475f9031 KH |
980 | ;; iconified, the current buffer changes to that of the frame that |
981 | ;; becomes exposed as a result of this iconification. | |
982 | ;; So, we make sure the current buffer doesn't change. | |
18b5607f | 983 | (select-frame ctl-frame) |
475f9031 KH |
984 | (ediff-refresh-control-frame) |
985 | ||
6853a937 MK |
986 | (cond ((and ediff-prefer-iconified-control-frame |
987 | (not ctl-frame-iconified-p) (not dont-iconify-ctl-frame)) | |
988 | (iconify-frame ctl-frame)) | |
989 | ((or deiconify-ctl-frame (not ctl-frame-iconified-p)) | |
990 | (raise-frame ctl-frame))) | |
475f9031 | 991 | |
bbe6126c | 992 | (set-window-dedicated-p (selected-window) t) |
ddc90f39 | 993 | |
3af0304a | 994 | ;; Now move the frame. We must do it separately due to an obscure bug in |
ddc90f39 MK |
995 | ;; XEmacs |
996 | (modify-frame-parameters | |
997 | ctl-frame | |
998 | (funcall ediff-control-frame-position-function ctl-buffer fwidth fheight)) | |
475f9031 | 999 | |
bbe6126c | 1000 | ;; synchronize so the cursor will move to control frame |
6853a937 | 1001 | ;; per RMS suggestion |
4ae69eac MK |
1002 | (if (ediff-window-display-p) |
1003 | (let ((count 7)) | |
1004 | (sit-for .1) | |
1005 | (while (and (not (frame-visible-p ctl-frame)) (> count 0)) | |
1006 | (setq count (1- count)) | |
1007 | (sit-for .3)))) | |
6853a937 | 1008 | |
475f9031 | 1009 | (or (ediff-frame-iconified-p ctl-frame) |
6853a937 | 1010 | ;; don't warp the mouse, unless ediff-grab-mouse = t |
4ae69eac MK |
1011 | (ediff-reset-mouse ctl-frame |
1012 | (or (eq this-command 'ediff-quit) | |
1013 | (not (eq ediff-grab-mouse t))))) | |
475f9031 KH |
1014 | |
1015 | (if ediff-xemacs-p | |
e756eb9f | 1016 | (ediff-with-current-buffer ctl-buffer |
bbe6126c MK |
1017 | (make-local-hook 'select-frame-hook) |
1018 | (add-hook 'select-frame-hook 'ediff-xemacs-select-frame-hook nil t) | |
475f9031 KH |
1019 | )) |
1020 | ||
e756eb9f | 1021 | (ediff-with-current-buffer ctl-buffer |
6853a937 | 1022 | (run-hooks 'ediff-after-setup-control-frame-hook)) |
18b5607f | 1023 | )) |
ddc90f39 | 1024 | |
18b5607f KH |
1025 | |
1026 | (defun ediff-destroy-control-frame (ctl-buffer) | |
e756eb9f | 1027 | (ediff-with-current-buffer ctl-buffer |
18b5607f KH |
1028 | (if (and (ediff-window-display-p) (frame-live-p ediff-control-frame)) |
1029 | (let ((ctl-frame ediff-control-frame)) | |
1030 | (if ediff-xemacs-p | |
1031 | (set-buffer-menubar default-menubar)) | |
18b5607f KH |
1032 | (setq ediff-control-frame nil) |
1033 | (delete-frame ctl-frame) | |
1034 | ))) | |
1035 | (ediff-skip-unsuitable-frames) | |
6853a937 MK |
1036 | ;;(ediff-reset-mouse nil) |
1037 | ) | |
475f9031 KH |
1038 | |
1039 | ||
1040 | ;; finds a good place to clip control frame | |
1041 | (defun ediff-make-frame-position (ctl-buffer ctl-frame-width ctl-frame-height) | |
e756eb9f | 1042 | (ediff-with-current-buffer ctl-buffer |
18b5607f KH |
1043 | (let* ((frame-A (window-frame ediff-window-A)) |
1044 | (frame-A-parameters (frame-parameters frame-A)) | |
6853a937 MK |
1045 | (frame-A-top (eval (cdr (assoc 'top frame-A-parameters)))) |
1046 | (frame-A-left (eval (cdr (assoc 'left frame-A-parameters)))) | |
18b5607f | 1047 | (frame-A-width (frame-width frame-A)) |
475f9031 KH |
1048 | (ctl-frame ediff-control-frame) |
1049 | horizontal-adjustment upward-adjustment | |
6628e7f8 | 1050 | ctl-frame-top ctl-frame-left) |
475f9031 KH |
1051 | |
1052 | ;; Multiple control frames are clipped based on the value of | |
3af0304a | 1053 | ;; ediff-control-buffer-number. This is done in order not to obscure |
475f9031 KH |
1054 | ;; other active control panels. |
1055 | (setq horizontal-adjustment (* 2 ediff-control-buffer-number) | |
1056 | upward-adjustment (* -14 ediff-control-buffer-number)) | |
1057 | ||
6853a937 MK |
1058 | (setq ctl-frame-top |
1059 | (- frame-A-top upward-adjustment ediff-control-frame-upward-shift) | |
1060 | ctl-frame-left | |
1061 | (+ frame-A-left | |
4ae69eac | 1062 | (if ediff-use-long-help-message |
6853a937 MK |
1063 | (* (ediff-frame-char-width ctl-frame) |
1064 | (+ ediff-wide-control-frame-rightward-shift | |
1065 | horizontal-adjustment)) | |
1066 | (- (* frame-A-width (ediff-frame-char-width frame-A)) | |
1067 | (* (ediff-frame-char-width ctl-frame) | |
1068 | (+ ctl-frame-width | |
1069 | ediff-narrow-control-frame-leftward-shift | |
1070 | horizontal-adjustment)))))) | |
6853a937 MK |
1071 | (setq ctl-frame-top |
1072 | (min ctl-frame-top | |
1073 | (- (ediff-display-pixel-height) | |
1074 | (* 2 ctl-frame-height | |
1075 | (ediff-frame-char-height ctl-frame)))) | |
1076 | ctl-frame-left | |
1077 | (min ctl-frame-left | |
1078 | (- (ediff-display-pixel-width) | |
1079 | (* ctl-frame-width (ediff-frame-char-width ctl-frame))))) | |
4ae69eac MK |
1080 | ;; keep ctl frame within the visible bounds |
1081 | (setq ctl-frame-top (max ctl-frame-top 1) | |
1082 | ctl-frame-left (max ctl-frame-left 1)) | |
6853a937 MK |
1083 | |
1084 | (list (cons 'top ctl-frame-top) | |
1085 | (cons 'left ctl-frame-left)) | |
1086 | ))) | |
475f9031 | 1087 | |
18b5607f | 1088 | (defun ediff-xemacs-select-frame-hook () |
6853a937 | 1089 | (if (and (equal (selected-frame) ediff-control-frame) |
4ae69eac | 1090 | (not ediff-use-long-help-message)) |
18b5607f | 1091 | (raise-frame ediff-control-frame))) |
475f9031 KH |
1092 | |
1093 | (defun ediff-make-wide-display () | |
1094 | "Construct an alist of parameters for the wide display. | |
1095 | Saves the old frame parameters in `ediff-wide-display-orig-parameters'. | |
1096 | The frame to be resized is kept in `ediff-wide-display-frame'. | |
1097 | This function modifies only the left margin and the width of the display. | |
1098 | It assumes that it is called from within the control buffer." | |
18b5607f | 1099 | (if (not (fboundp 'ediff-display-pixel-width)) |
6628e7f8 | 1100 | (error "Can't determine display width")) |
18b5607f KH |
1101 | (let* ((frame-A (window-frame ediff-window-A)) |
1102 | (frame-A-params (frame-parameters frame-A)) | |
475f9031 | 1103 | (cw (ediff-frame-char-width frame-A)) |
18b5607f | 1104 | (wd (- (/ (ediff-display-pixel-width) cw) 5))) |
6628e7f8 | 1105 | (setq ediff-wide-display-orig-parameters |
6853a937 | 1106 | (list (cons 'left (max 0 (eval (cdr (assoc 'left frame-A-params))))) |
475f9031 KH |
1107 | (cons 'width (cdr (assoc 'width frame-A-params)))) |
1108 | ediff-wide-display-frame frame-A) | |
18b5607f | 1109 | (modify-frame-parameters frame-A (list (cons 'left cw) |
475f9031 KH |
1110 | (cons 'width wd))))) |
1111 | ||
1112 | ||
1113 | ||
1114 | ;; Revise the mode line to display which difference we have selected | |
1115 | ;; Also resets modelines of buffers A/B, since they may be clobbered by | |
1116 | ;; anothe invocations of Ediff. | |
1117 | (defun ediff-refresh-mode-lines () | |
1118 | (let (buf-A-state-diff buf-B-state-diff buf-C-state-diff buf-C-state-merge) | |
1119 | ||
1120 | (if (ediff-valid-difference-p) | |
1121 | (setq | |
1122 | buf-C-state-diff (ediff-get-state-of-diff ediff-current-difference 'C) | |
1123 | buf-C-state-merge (ediff-get-state-of-merge ediff-current-difference) | |
1124 | buf-A-state-diff (ediff-get-state-of-diff ediff-current-difference 'A) | |
1125 | buf-B-state-diff (ediff-get-state-of-diff ediff-current-difference 'B) | |
1126 | buf-A-state-diff (if buf-A-state-diff | |
1127 | (format "[%s] " buf-A-state-diff) | |
1128 | "") | |
1129 | buf-B-state-diff (if buf-B-state-diff | |
1130 | (format "[%s] " buf-B-state-diff) | |
1131 | "") | |
1132 | buf-C-state-diff (if (and (ediff-buffer-live-p ediff-buffer-C) | |
1133 | (or buf-C-state-diff buf-C-state-merge)) | |
6853a937 | 1134 | (format "[%s%s%s] " |
475f9031 KH |
1135 | (or buf-C-state-diff "") |
1136 | (if buf-C-state-merge | |
1137 | (concat " " buf-C-state-merge) | |
6853a937 | 1138 | "") |
6628e7f8 | 1139 | (if (ediff-get-state-of-ancestor |
6853a937 MK |
1140 | ediff-current-difference) |
1141 | " AncestorEmpty" | |
1142 | "") | |
1143 | ) | |
475f9031 KH |
1144 | "")) |
1145 | (setq buf-A-state-diff "" | |
1146 | buf-B-state-diff "" | |
1147 | buf-C-state-diff "")) | |
1148 | ||
1149 | ;; control buffer format | |
1150 | (setq mode-line-format | |
ddc90f39 MK |
1151 | (if (ediff-narrow-control-frame-p) |
1152 | (list " " mode-line-buffer-identification) | |
1153 | (list "-- " mode-line-buffer-identification " Quick Help"))) | |
475f9031 | 1154 | ;; control buffer id |
6628e7f8 | 1155 | (setq mode-line-buffer-identification |
475f9031 KH |
1156 | (if (ediff-narrow-control-frame-p) |
1157 | (ediff-make-narrow-control-buffer-id 'skip-name) | |
1158 | (ediff-make-wide-control-buffer-id))) | |
1159 | ;; Force mode-line redisplay | |
1160 | (force-mode-line-update) | |
1161 | ||
18b5607f | 1162 | (if (and (ediff-window-display-p) (frame-live-p ediff-control-frame)) |
475f9031 KH |
1163 | (ediff-refresh-control-frame)) |
1164 | ||
e756eb9f | 1165 | (ediff-with-current-buffer ediff-buffer-A |
475f9031 KH |
1166 | (setq ediff-diff-status buf-A-state-diff) |
1167 | (ediff-strip-mode-line-format) | |
1168 | (setq mode-line-format | |
1169 | (list " A: " 'ediff-diff-status mode-line-format)) | |
1170 | (force-mode-line-update)) | |
e756eb9f | 1171 | (ediff-with-current-buffer ediff-buffer-B |
475f9031 KH |
1172 | (setq ediff-diff-status buf-B-state-diff) |
1173 | (ediff-strip-mode-line-format) | |
1174 | (setq mode-line-format | |
1175 | (list " B: " 'ediff-diff-status mode-line-format)) | |
1176 | (force-mode-line-update)) | |
1177 | (if ediff-3way-job | |
e756eb9f | 1178 | (ediff-with-current-buffer ediff-buffer-C |
475f9031 KH |
1179 | (setq ediff-diff-status buf-C-state-diff) |
1180 | (ediff-strip-mode-line-format) | |
1181 | (setq mode-line-format | |
1182 | (list " C: " 'ediff-diff-status mode-line-format)) | |
1183 | (force-mode-line-update))) | |
6853a937 | 1184 | (if (ediff-buffer-live-p ediff-ancestor-buffer) |
e756eb9f | 1185 | (ediff-with-current-buffer ediff-ancestor-buffer |
6853a937 MK |
1186 | (ediff-strip-mode-line-format) |
1187 | ;; we keep the second dummy string in the mode line format of the | |
1188 | ;; ancestor, since for other buffers Ediff prepends 2 strings and | |
1189 | ;; ediff-strip-mode-line-format expects that. | |
1190 | (setq mode-line-format | |
1191 | (list " Ancestor: " | |
1192 | (cond ((not (stringp buf-C-state-merge)) | |
1193 | "") | |
1194 | ((string-match "prefer-A" buf-C-state-merge) | |
1195 | "[=diff(B)] ") | |
1196 | ((string-match "prefer-B" buf-C-state-merge) | |
1197 | "[=diff(A)] ") | |
1198 | (t "")) | |
1199 | mode-line-format)))) | |
475f9031 KH |
1200 | )) |
1201 | ||
1202 | ||
1203 | (defun ediff-refresh-control-frame () | |
6853a937 | 1204 | (if ediff-emacs-p |
bbe6126c | 1205 | ;; set frame/icon titles for Emacs |
6853a937 MK |
1206 | (modify-frame-parameters |
1207 | ediff-control-frame | |
bbe6126c MK |
1208 | (list (cons 'title (ediff-make-base-title)) |
1209 | (cons 'icon-name (ediff-make-narrow-control-buffer-id)) | |
1210 | )) | |
1211 | ;; set frame/icon titles for XEmacs | |
1212 | (setq frame-title-format (ediff-make-base-title) | |
1213 | frame-icon-title-format (ediff-make-narrow-control-buffer-id)) | |
6853a937 MK |
1214 | ;; force an update of the frame title |
1215 | (modify-frame-parameters ediff-control-frame '(())))) | |
475f9031 KH |
1216 | |
1217 | ||
1218 | (defun ediff-make-narrow-control-buffer-id (&optional skip-name) | |
1219 | (concat | |
1220 | (if skip-name | |
1221 | " " | |
bbe6126c | 1222 | (ediff-make-base-title)) |
6628e7f8 | 1223 | (cond ((< ediff-current-difference 0) |
475f9031 KH |
1224 | (format " _/%d" ediff-number-of-differences)) |
1225 | ((>= ediff-current-difference ediff-number-of-differences) | |
1226 | (format " $/%d" ediff-number-of-differences)) | |
1227 | (t | |
1228 | (format " %d/%d" | |
1229 | (1+ ediff-current-difference) | |
1230 | ediff-number-of-differences))))) | |
bbe6126c MK |
1231 | |
1232 | (defun ediff-make-base-title () | |
1233 | (concat | |
1234 | (cdr (assoc 'name ediff-control-frame-parameters)) | |
1235 | ediff-control-buffer-suffix)) | |
475f9031 KH |
1236 | |
1237 | (defun ediff-make-wide-control-buffer-id () | |
1238 | (cond ((< ediff-current-difference 0) | |
1239 | (list (format "%%b At start of %d diffs" | |
1240 | ediff-number-of-differences))) | |
1241 | ((>= ediff-current-difference ediff-number-of-differences) | |
1242 | (list (format "%%b At end of %d diffs" | |
1243 | ediff-number-of-differences))) | |
1244 | (t | |
1245 | (list (format "%%b diff %d of %d" | |
1246 | (1+ ediff-current-difference) | |
1247 | ediff-number-of-differences))))) | |
1248 | ||
1249 | ||
1250 | ||
1251 | ;; If buff is not live, return nil | |
1252 | (defun ediff-get-visible-buffer-window (buff) | |
1253 | (if (ediff-buffer-live-p buff) | |
1254 | (if ediff-xemacs-p | |
1255 | (get-buffer-window buff t) | |
1256 | (get-buffer-window buff 'visible)))) | |
1257 | ||
475f9031 | 1258 | |
bbe6126c | 1259 | ;;; Functions to decide when to redraw windows |
475f9031 KH |
1260 | |
1261 | (defun ediff-keep-window-config (control-buf) | |
1262 | (and (eq control-buf (current-buffer)) | |
1263 | (/= (buffer-size) 0) | |
e756eb9f | 1264 | (ediff-with-current-buffer control-buf |
475f9031 KH |
1265 | (let ((ctl-wind ediff-control-window) |
1266 | (A-wind ediff-window-A) | |
1267 | (B-wind ediff-window-B) | |
1268 | (C-wind ediff-window-C)) | |
1269 | ||
1270 | (and | |
1271 | (ediff-window-visible-p A-wind) | |
1272 | (ediff-window-visible-p B-wind) | |
1273 | ;; if buffer C is defined then take it into account | |
1274 | (or (not ediff-3way-job) | |
1275 | (ediff-window-visible-p C-wind)) | |
1276 | (eq (window-buffer A-wind) ediff-buffer-A) | |
1277 | (eq (window-buffer B-wind) ediff-buffer-B) | |
1278 | (or (not ediff-3way-job) | |
1279 | (eq (window-buffer C-wind) ediff-buffer-C)) | |
1280 | (string= ediff-window-config-saved | |
18b5607f | 1281 | (format "%S%S%S%S%S%S%S" |
475f9031 | 1282 | ctl-wind A-wind B-wind C-wind |
18b5607f KH |
1283 | ediff-split-window-function |
1284 | (ediff-multiframe-setup-p) | |
1285 | ediff-wide-display-p))))))) | |
475f9031 KH |
1286 | |
1287 | ||
bbe6126c MK |
1288 | ;;; Local Variables: |
1289 | ;;; eval: (put 'ediff-defvar-local 'lisp-indent-hook 'defun) | |
e756eb9f MK |
1290 | ;;; eval: (put 'ediff-with-current-buffer 'lisp-indent-hook 1) |
1291 | ;;; eval: (put 'ediff-with-current-buffer 'edebug-form-spec '(form body)) | |
bbe6126c MK |
1292 | ;;; End: |
1293 | ||
475f9031 | 1294 | ;;; ediff-wind.el ends here |