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