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497d1817 JA |
1 | /* Functions for Sun Windows menus and selection buffer. |
2 | Copyright (C) 1987 Free Software Foundation, Inc. | |
3 | ||
0fd6b74e RS |
4 | This file is probably totally obsolete. In any case, the FSF is |
5 | unwilling to support it. We agreed to include it in our distribution | |
6 | only on the understanding that we would spend no time at all on it. | |
7 | ||
8 | If you have complaints about this file, send them to peck@sun.com. | |
9 | If no one at Sun wants to maintain this, then consider it not | |
10 | maintained at all. It would be a bad thing for the GNU project if | |
11 | this file took our effort away from higher-priority things. | |
12 | ||
13 | ||
497d1817 JA |
14 | This file is part of GNU Emacs. |
15 | ||
93320c23 JA |
16 | GNU Emacs is free software; you can redistribute it and/or modify |
17 | it under the terms of the GNU General Public License as published by | |
7c938215 | 18 | the Free Software Foundation; either version 2, or (at your option) |
93320c23 JA |
19 | any later version. |
20 | ||
497d1817 | 21 | GNU Emacs is distributed in the hope that it will be useful, |
93320c23 JA |
22 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
23 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
24 | GNU General Public License for more details. | |
25 | ||
26 | You should have received a copy of the GNU General Public License | |
27 | along with GNU Emacs; see the file COPYING. If not, write to | |
28 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
497d1817 | 29 | |
0fd6b74e | 30 | /* Author: Jeff Peck, Sun Microsystems, Inc. <peck@sun.com> |
497d1817 JA |
31 | Original ideas by David Kastan and Eric Negaard, SRI International |
32 | Major help from: Steve Greenbaum, Reasoning Systems, Inc. | |
33 | <froud@kestrel.arpa> | |
34 | who first discovered the Menu_Base_Kludge. | |
35 | */ | |
36 | ||
37 | /* | |
38 | * Emacs Lisp-Callable functions for sunwindows | |
39 | */ | |
18160b98 | 40 | #include <config.h> |
497d1817 JA |
41 | |
42 | #include <stdio.h> | |
43 | #include <errno.h> | |
44 | #include <signal.h> | |
45 | #include <sunwindow/window_hs.h> | |
46 | #include <suntool/selection.h> | |
47 | #include <suntool/menu.h> | |
48 | #include <suntool/walkmenu.h> | |
49 | #include <suntool/frame.h> | |
50 | #include <suntool/window.h> | |
51 | ||
52 | #include <fcntl.h> | |
53 | #undef NULL /* We don't need sunview's idea of NULL */ | |
54 | #include "lisp.h" | |
55 | #include "window.h" | |
56 | #include "buffer.h" | |
57 | #include "termhooks.h" | |
58 | ||
0137dbf7 | 59 | /* conversion to/from character & frame coordinates */ |
497d1817 JA |
60 | /* From Gosling Emacs SunWindow driver by Chris Torek */ |
61 | ||
0137dbf7 | 62 | /* Chars to frame coords. Note that we speak in zero origin. */ |
497d1817 JA |
63 | #define CtoSX(cx) ((cx) * Sun_Font_Xsize) |
64 | #define CtoSY(cy) ((cy) * Sun_Font_Ysize) | |
65 | ||
0137dbf7 | 66 | /* Frame coords to chars */ |
497d1817 JA |
67 | #define StoCX(sx) ((sx) / Sun_Font_Xsize) |
68 | #define StoCY(sy) ((sy) / Sun_Font_Ysize) | |
69 | ||
70 | #define CHECK_GFX(x) if((win_fd<0)&&(Fsun_window_init(),(win_fd<0)))return(x) | |
71 | int win_fd = -1; | |
72 | struct pixfont *Sun_Font; /* The font */ | |
73 | int Sun_Font_Xsize; /* Width of font */ | |
74 | int Sun_Font_Ysize; /* Height of font */ | |
75 | ||
76 | #define Menu_Base_Kludge /* until menu_show_using_fd gets fixed */ | |
77 | #ifdef Menu_Base_Kludge | |
78 | static Frame Menu_Base_Frame; | |
79 | static int Menu_Base_fd; | |
80 | static Lisp_Object sm_kludge_string; | |
81 | #endif | |
82 | struct cursor CurrentCursor; /* The current cursor */ | |
83 | ||
84 | static short CursorData[16]; /* Build cursor here */ | |
85 | static mpr_static(CursorMpr, 16, 16, 1, CursorData); | |
86 | static struct cursor NewCursor = {0, 0, PIX_SRC ^ PIX_DST, &CursorMpr}; | |
87 | ||
88 | #define RIGHT_ARROW_CURSOR /* if you want the right arrow */ | |
89 | #ifdef RIGHT_ARROW_CURSOR | |
90 | /* The default right-arrow cursor, with XOR drawing. */ | |
91 | static short ArrowCursorData[16] = { | |
92 | 0x0001,0x0003,0x0007,0x000F,0x001F,0x003F,0x007F,0x000F, | |
93 | 0x001B,0x0019,0x0030,0x0030,0x0060,0x0060,0x00C0,0x00C0}; | |
94 | static mpr_static(ArrowCursorMpr, 16, 16, 1, ArrowCursorData); | |
95 | struct cursor DefaultCursor = {15, 0, PIX_SRC ^ PIX_DST, &ArrowCursorMpr}; | |
96 | ||
97 | #else | |
eb8c3be9 | 98 | /* The default left-arrow cursor, with XOR drawing. */ |
497d1817 JA |
99 | static short ArrowCursorData[16] = { |
100 | 0x8000,0xC000,0xE000,0xF000,0xF800,0xFC00,0xFE00,0xF000, | |
101 | 0xD800,0x9800,0x0C00,0x0C00,0x0600,0x0600,0x0300,0x0300}; | |
102 | static mpr_static(ArrowCursorMpr, 16, 16, 1, ArrowCursorData); | |
103 | struct cursor DefaultCursor = {0, 0, PIX_SRC ^ PIX_DST, &ArrowCursorMpr}; | |
104 | #endif | |
105 | \f | |
106 | /* | |
107 | * Initialize window | |
108 | */ | |
109 | DEFUN ("sun-window-init", Fsun_window_init, Ssun_window_init, 0, 1, 0, | |
110 | "One time setup for using Sun Windows with mouse.\n\ | |
111 | Unless optional argument FORCE is non-nil, is a noop after its first call.\n\ | |
112 | Returns a number representing the file descriptor of the open Sun Window,\n\ | |
113 | or -1 if can not open it.") | |
114 | (force) | |
115 | Lisp_Object force; | |
116 | { | |
117 | char *cp; | |
118 | static int already_initialized = 0; | |
119 | ||
265a9e55 | 120 | if ((! already_initialized) || (!NILP(force))) { |
497d1817 JA |
121 | cp = getenv("WINDOW_GFX"); |
122 | if (cp != 0) win_fd = open(cp, 2); | |
123 | if (win_fd > 0) | |
124 | { | |
125 | Sun_Font = pf_default(); | |
126 | Sun_Font_Xsize = Sun_Font->pf_defaultsize.x; | |
127 | Sun_Font_Ysize = Sun_Font->pf_defaultsize.y; | |
128 | Fsun_change_cursor_icon (Qnil); /* set up the default cursor */ | |
129 | already_initialized = 1; | |
130 | #ifdef Menu_Base_Kludge | |
131 | ||
132 | /* Make a frame to use for putting the menu on, and get its fd. */ | |
133 | Menu_Base_Frame = window_create(0, FRAME, | |
134 | WIN_X, 0, WIN_Y, 0, | |
135 | WIN_ROWS, 1, WIN_COLUMNS, 1, | |
136 | WIN_SHOW, FALSE, | |
137 | FRAME_NO_CONFIRM, 1, | |
138 | 0); | |
139 | Menu_Base_fd = (int) window_get(Menu_Base_Frame, WIN_FD); | |
140 | #endif | |
141 | } | |
142 | } | |
143 | return(make_number(win_fd)); | |
144 | } | |
145 | \f | |
146 | /* | |
147 | * Mouse sit-for (allows a shorter interval than the regular sit-for | |
148 | * and can be interrupted by the mouse) | |
149 | */ | |
150 | DEFUN ("sit-for-millisecs", Fsit_for_millisecs, Ssit_for_millisecs, 1, 1, 0, | |
151 | "Like sit-for, but ARG is milliseconds. \n\ | |
152 | Perform redisplay, then wait for ARG milliseconds or until\n\ | |
153 | input is available. Returns t if wait completed with no input.\n\ | |
154 | Redisplay does not happen if input is available before it starts.") | |
155 | (n) | |
156 | Lisp_Object n; | |
157 | { | |
158 | struct timeval Timeout; | |
159 | int waitmask = 1; | |
160 | ||
161 | CHECK_NUMBER (n, 0); | |
162 | Timeout.tv_sec = XINT(n) / 1000; | |
163 | Timeout.tv_usec = (XINT(n) - (Timeout.tv_sec * 1000)) * 1000; | |
164 | ||
165 | if (detect_input_pending()) return(Qnil); | |
447c9a10 | 166 | redisplay_preserve_echo_area (); |
497d1817 JA |
167 | /* |
168 | * Check for queued keyboard input/mouse hits again | |
169 | * (A bit screen update can take some time!) | |
170 | */ | |
171 | if (detect_input_pending()) return(Qnil); | |
172 | select(1,&waitmask,0,0,&Timeout); | |
173 | if (detect_input_pending()) return(Qnil); | |
174 | return(Qt); | |
175 | } | |
176 | ||
177 | /* | |
178 | * Sun sleep-for (allows a shorter interval than the regular sleep-for) | |
179 | */ | |
180 | DEFUN ("sleep-for-millisecs", | |
181 | Fsleep_for_millisecs, | |
182 | Ssleep_for_millisecs, 1, 1, 0, | |
183 | "Pause, without updating display, for ARG milliseconds.") | |
184 | (n) | |
185 | Lisp_Object n; | |
186 | { | |
187 | unsigned useconds; | |
188 | ||
189 | CHECK_NUMBER (n, 0); | |
190 | useconds = XINT(n) * 1000; | |
191 | usleep(useconds); | |
192 | return(Qt); | |
193 | } | |
194 | ||
195 | DEFUN ("update-display", Fupdate_display, Supdate_display, 0, 0, 0, | |
196 | "Perform redisplay.") | |
197 | () | |
198 | { | |
447c9a10 | 199 | redisplay_preserve_echo_area (); |
497d1817 JA |
200 | return(Qt); |
201 | } | |
202 | ||
203 | \f | |
204 | /* | |
205 | * Change the Sun mouse icon | |
206 | */ | |
207 | DEFUN ("sun-change-cursor-icon", | |
208 | Fsun_change_cursor_icon, | |
209 | Ssun_change_cursor_icon, 1, 1, 0, | |
210 | "Change the Sun mouse cursor icon. ICON is a lisp vector whose 1st element\n\ | |
211 | is the X offset of the cursor hot-point, whose 2nd element is the Y offset\n\ | |
212 | of the cursor hot-point and whose 3rd element is the cursor pixel data\n\ | |
213 | expressed as a string. If ICON is nil then the original arrow cursor is used") | |
214 | (Icon) | |
215 | Lisp_Object Icon; | |
216 | { | |
217 | register unsigned char *cp; | |
218 | register short *p; | |
219 | register int i; | |
220 | Lisp_Object X_Hot, Y_Hot, Data; | |
221 | ||
222 | CHECK_GFX (Qnil); | |
223 | /* | |
224 | * If the icon is null, we just restore the DefaultCursor | |
225 | */ | |
265a9e55 | 226 | if (NILP(Icon)) |
497d1817 JA |
227 | CurrentCursor = DefaultCursor; |
228 | else { | |
229 | /* | |
230 | * extract the data from the vector | |
231 | */ | |
232 | CHECK_VECTOR (Icon, 0); | |
233 | if (XVECTOR(Icon)->size < 3) return(Qnil); | |
234 | X_Hot = XVECTOR(Icon)->contents[0]; | |
235 | Y_Hot = XVECTOR(Icon)->contents[1]; | |
236 | Data = XVECTOR(Icon)->contents[2]; | |
237 | ||
238 | CHECK_NUMBER (X_Hot, 0); | |
239 | CHECK_NUMBER (Y_Hot, 0); | |
240 | CHECK_STRING (Data, 0); | |
241 | if (XSTRING(Data)->size != 32) return(Qnil); | |
242 | /* | |
243 | * Setup the new cursor | |
244 | */ | |
245 | NewCursor.cur_xhot = X_Hot; | |
246 | NewCursor.cur_yhot = Y_Hot; | |
247 | cp = XSTRING(Data)->data; | |
248 | p = CursorData; | |
249 | i = 16; | |
250 | while(--i >= 0) | |
251 | *p++ = (cp[0] << 8) | cp[1], cp += 2; | |
252 | CurrentCursor = NewCursor; | |
253 | } | |
254 | win_setcursor(win_fd, &CurrentCursor); | |
255 | return(Qt); | |
256 | } | |
257 | \f | |
258 | /* | |
259 | * Interface for sunwindows selection | |
260 | */ | |
261 | static Lisp_Object Current_Selection; | |
262 | ||
263 | static | |
264 | sel_write (sel, file) | |
265 | struct selection *sel; | |
266 | FILE *file; | |
267 | { | |
268 | fwrite (XSTRING (Current_Selection)->data, sizeof (char), | |
269 | sel->sel_items, file); | |
270 | } | |
271 | ||
272 | static | |
273 | sel_clear (sel, windowfd) | |
274 | struct selection *sel; | |
275 | int windowfd; | |
276 | { | |
277 | } | |
278 | ||
279 | static | |
280 | sel_read (sel, file) | |
281 | struct selection *sel; | |
282 | FILE *file; | |
283 | { | |
284 | register int i, n; | |
285 | register char *cp; | |
286 | ||
287 | Current_Selection = make_string ("", 0); | |
288 | if (sel->sel_items <= 0) | |
289 | return (0); | |
290 | cp = (char *) malloc(sel->sel_items); | |
291 | if (cp == (char *)0) { | |
292 | error("malloc failed in sel_read"); | |
293 | return(-1); | |
294 | } | |
295 | n = fread(cp, sizeof(char), sel->sel_items, file); | |
296 | if (n > sel->sel_items) { | |
297 | error("fread botch in sel_read"); | |
298 | return(-1); | |
299 | } else if (n < 0) { | |
300 | error("Error reading selection."); | |
301 | return(-1); | |
302 | } | |
303 | /* | |
eb8c3be9 | 304 | * The shelltool select saves newlines as carriage returns, |
497d1817 JA |
305 | * but emacs wants newlines. |
306 | */ | |
307 | for (i = 0; i < n; i++) | |
308 | if (cp[i] == '\r') cp[i] = '\n'; | |
309 | ||
310 | Current_Selection = make_string (cp, n); | |
311 | free (cp); | |
312 | return (0); | |
313 | } | |
314 | \f | |
315 | /* | |
316 | * Set the window system "selection" to be the arg STRING | |
317 | */ | |
318 | DEFUN ("sun-set-selection", Fsun_set_selection, Ssun_set_selection, 1, 1, | |
319 | "sSet selection to: ", | |
320 | "Set the current sunwindow selection to STRING.") | |
321 | (str) | |
322 | Lisp_Object str; | |
323 | { | |
324 | struct selection selection; | |
325 | ||
326 | CHECK_STRING (str, 0); | |
327 | Current_Selection = str; | |
328 | ||
329 | CHECK_GFX (Qnil); | |
330 | selection.sel_type = SELTYPE_CHAR; | |
331 | selection.sel_items = XSTRING (str)->size; | |
332 | selection.sel_itembytes = 1; | |
333 | selection.sel_pubflags = 1; | |
334 | selection_set(&selection, sel_write, sel_clear, win_fd); | |
335 | return (Qt); | |
336 | } | |
337 | /* | |
338 | * Stuff the current window system selection into the current buffer | |
339 | */ | |
340 | DEFUN ("sun-get-selection", Fsun_get_selection, Ssun_get_selection, 0, 0, 0, | |
341 | "Return the current sunwindows selection as a string.") | |
342 | () | |
343 | { | |
344 | CHECK_GFX (Current_Selection); | |
345 | selection_get (sel_read, win_fd); | |
346 | return (Current_Selection); | |
347 | } | |
348 | \f | |
349 | Menu sun_menu_create(); | |
350 | ||
351 | Menu_item | |
352 | sun_item_create (Pair) | |
353 | Lisp_Object Pair; | |
354 | { | |
355 | /* In here, we depend on Lisp supplying zero terminated strings in the data*/ | |
356 | /* so we can just pass the pointers, and not recopy anything */ | |
357 | ||
358 | Menu_item menu_item; | |
359 | Menu submenu; | |
360 | Lisp_Object String; | |
361 | Lisp_Object Value; | |
362 | ||
363 | if (!CONSP(Pair)) wrong_type_argument(Qlistp, Pair); | |
364 | String = Fcar(Pair); | |
365 | CHECK_STRING(String, 0); | |
366 | Value = Fcdr(Pair); | |
b442163d | 367 | if (SYMBOLP (Value)) |
497d1817 | 368 | Value = XSYMBOL(Value)->value; |
b442163d | 369 | if (VECTORP (Value)) { |
497d1817 JA |
370 | submenu = sun_menu_create (Value); |
371 | menu_item = menu_create_item | |
372 | (MENU_RELEASE, MENU_PULLRIGHT_ITEM, XSTRING(String)->data, submenu, 0); | |
373 | } else { | |
374 | menu_item = menu_create_item | |
375 | (MENU_RELEASE, MENU_STRING_ITEM, XSTRING(String)->data, Value, 0); | |
376 | } | |
377 | return menu_item; | |
378 | } | |
379 | ||
380 | Menu | |
381 | sun_menu_create (Vector) | |
382 | Lisp_Object Vector; | |
383 | { | |
384 | Menu menu; | |
385 | int i; | |
386 | CHECK_VECTOR(Vector,0); | |
387 | menu=menu_create(0); | |
388 | for(i = 0; i < XVECTOR(Vector)->size; i++) { | |
389 | menu_set (menu, MENU_APPEND_ITEM, | |
390 | sun_item_create(XVECTOR(Vector)->contents[i]), 0); | |
391 | } | |
392 | return menu; | |
393 | } | |
394 | ||
395 | /* | |
396 | * If the first item of the menu has nil as its value, then make the | |
397 | * item look like a label by inverting it and making it unselectable. | |
398 | * Returns 1 if the label was made, 0 otherwise. | |
399 | */ | |
400 | int | |
401 | make_menu_label (menu) | |
402 | Menu menu; | |
403 | { | |
404 | int made_label_p = 0; | |
405 | ||
406 | if (( menu_get(menu, MENU_NITEMS) > 0 ) && /* At least one item */ | |
407 | ((Lisp_Object) menu_get(menu_get(menu, MENU_NTH_ITEM, 1), | |
408 | MENU_VALUE) == Qnil )) { | |
409 | menu_set(menu_get(menu, MENU_NTH_ITEM, 1), | |
410 | MENU_INVERT, TRUE, | |
411 | MENU_FEEDBACK, FALSE, | |
412 | 0); | |
413 | made_label_p = 1; | |
414 | } | |
415 | return made_label_p; | |
416 | } | |
417 | \f | |
418 | /* | |
419 | * Do a pop-up menu and return the selected value | |
420 | */ | |
421 | DEFUN ("sun-menu-internal", | |
422 | Fsun_menu_internal, | |
423 | Ssun_menu_internal, 5, 5, 0, | |
424 | "Set up a SunView pop-up menu and return the user's choice.\n\ | |
425 | Arguments WINDOW, X, Y, BUTTON, and MENU.\n\ | |
426 | *** User code should generally use sun-menu-evaluate ***\n\ | |
427 | \n\ | |
428 | Arguments WINDOW, X, Y, BUTTON, and MENU.\n\ | |
429 | Put MENU up in WINDOW at position X, Y.\n\ | |
430 | The BUTTON argument specifies the button to be released that selects an item:\n\ | |
431 | 1 = LEFT BUTTON\n\ | |
432 | 2 = MIDDLE BUTTON\n\ | |
433 | 4 = RIGHT BUTTON\n\ | |
434 | The MENU argument is a vector containing (STRING . VALUE) pairs.\n\ | |
435 | The VALUE of the selected item is returned.\n\ | |
436 | If the VALUE of the first pair is nil, then the first STRING will be used\n\ | |
437 | as a menu label.") | |
438 | (window, X_Position, Y_Position, Button, MEnu) | |
439 | Lisp_Object window, X_Position, Y_Position, Button, MEnu; | |
440 | { | |
441 | Menu menu; | |
442 | int button, xpos, ypos; | |
443 | Event event0; | |
444 | Event *event = &event0; | |
445 | Lisp_Object Value, Pair; | |
446 | ||
447 | CHECK_NUMBER(X_Position, 0); | |
448 | CHECK_NUMBER(Y_Position, 1); | |
774910eb | 449 | CHECK_LIVE_WINDOW(window, 2); |
497d1817 JA |
450 | CHECK_NUMBER(Button, 3); |
451 | CHECK_VECTOR(MEnu, 4); | |
452 | ||
453 | CHECK_GFX (Qnil); | |
454 | ||
455 | xpos = CtoSX (XWINDOW(window)->left + XINT(X_Position)); | |
456 | ypos = CtoSY (XWINDOW(window)->top + XINT(Y_Position)); | |
457 | #ifdef Menu_Base_Kludge | |
458 | {static Lisp_Object symbol[2]; | |
459 | symbol[0] = Fintern (sm_kludge_string, Qnil); | |
460 | Pair = Ffuncall (1, symbol); | |
461 | xpos += XINT (XCONS (Pair)->cdr); | |
462 | ypos += XINT (XCONS (Pair)->car); | |
463 | } | |
464 | #endif | |
465 | ||
466 | button = XINT(Button); | |
467 | if(button == 4) button = 3; | |
468 | event_set_id (event, BUT(button)); | |
469 | event_set_down (event); | |
470 | event_set_x (event, xpos); | |
471 | event_set_y (event, ypos); | |
472 | ||
473 | menu = sun_menu_create(MEnu); | |
474 | make_menu_label(menu); | |
475 | ||
476 | #ifdef Menu_Base_Kludge | |
477 | Value = (Lisp_Object) menu_show(menu, Menu_Base_Frame, event, 0); | |
478 | #else | |
479 | /* This confuses the notifier or something: */ | |
480 | Value = (Lisp_Object) menu_show_using_fd(menu, win_fd, event, 0); | |
481 | /* | |
482 | * Right button gets lost, and event sequencing or delivery gets mixed up | |
483 | * So, until that gets fixed, we use this <Menu_Base_Frame> kludge: | |
484 | */ | |
485 | #endif | |
486 | menu_destroy (menu); | |
487 | ||
488 | return ((int)Value ? Value : Qnil); | |
489 | } | |
490 | ||
491 | \f | |
492 | /* | |
493 | * Define everything | |
494 | */ | |
495 | syms_of_sunfns() | |
496 | { | |
497 | #ifdef Menu_Base_Kludge | |
498 | /* i'm just too lazy to re-write this into C code */ | |
499 | /* so we will call this elisp function from C */ | |
500 | sm_kludge_string = make_pure_string ("sm::menu-kludge", 15); | |
501 | #endif /* Menu_Base_Kludge */ | |
502 | ||
503 | defsubr(&Ssun_window_init); | |
504 | defsubr(&Ssit_for_millisecs); | |
505 | defsubr(&Ssleep_for_millisecs); | |
506 | defsubr(&Supdate_display); | |
507 | defsubr(&Ssun_change_cursor_icon); | |
508 | defsubr(&Ssun_set_selection); | |
509 | defsubr(&Ssun_get_selection); | |
510 | defsubr(&Ssun_menu_internal); | |
511 | } |