| 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 | |
| 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 | |
| 11 | GNU Emacs is distributed in the hope that it will be useful, |
| 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. */ |
| 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 | |
| 49 | /* conversion to/from character & frame coordinates */ |
| 50 | /* From Gosling Emacs SunWindow driver by Chris Torek */ |
| 51 | |
| 52 | /* Chars to frame coords. Note that we speak in zero origin. */ |
| 53 | #define CtoSX(cx) ((cx) * Sun_Font_Xsize) |
| 54 | #define CtoSY(cy) ((cy) * Sun_Font_Ysize) |
| 55 | |
| 56 | /* Frame coords to chars */ |
| 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 | |
| 110 | if ((! already_initialized) || (!NILP(force))) { |
| 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); |
| 156 | redisplay_preserve_echo_area (); |
| 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 | { |
| 189 | redisplay_preserve_echo_area (); |
| 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 | */ |
| 216 | if (NILP(Icon)) |
| 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); |
| 439 | CHECK_LIVE_WINDOW(window, 2); |
| 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 | } |