Mercurial > hg > xemacs-beta
annotate src/device.c @ 5920:0f2338afbabf cygwin
Minimum necessary to get started:
sufficient to compile OK, run -nw, but not with window
| author | Henry Thompson <ht@markup.co.uk> |
|---|---|
| date | Mon, 21 Apr 2014 11:42:50 +0100 |
| parents | 56144c8593a8 |
| children |
| rev | line source |
|---|---|
| 442 | 1 /* Generic device functions. |
| 428 | 2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois. |
| 3 Copyright (C) 1994, 1995 Free Software Foundation, Inc. | |
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4 Copyright (C) 1995, 1996, 2002, 2010 Ben Wing. |
| 428 | 5 |
| 6 This file is part of XEmacs. | |
| 7 | |
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8 XEmacs is free software: you can redistribute it and/or modify it |
| 428 | 9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation, either version 3 of the License, or (at your |
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11 option) any later version. |
| 428 | 12 |
| 13 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
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19 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 428 | 20 |
| 21 /* Synched up with: Not in FSF. */ | |
| 22 | |
| 853 | 23 /* Written by Ben Wing, late 1995? |
| 24 Based on prototype by Chuck Thompson. | |
| 25 device-system-metric stuff added 1998? by Kirill Katsnelson. | |
| 26 */ | |
| 428 | 27 |
| 28 #include <config.h> | |
| 29 #include "lisp.h" | |
| 30 | |
| 31 #include "buffer.h" | |
| 32 #include "console.h" | |
| 872 | 33 #include "device-impl.h" |
| 428 | 34 #include "elhash.h" |
| 35 #include "events.h" | |
| 36 #include "faces.h" | |
| 872 | 37 #include "frame-impl.h" |
| 428 | 38 #include "keymap.h" |
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39 #include "fontcolor.h" |
| 428 | 40 #include "redisplay.h" |
| 41 #include "specifier.h" | |
| 42 #include "sysdep.h" | |
| 800 | 43 #include "toolbar.h" |
| 428 | 44 #include "window.h" |
| 45 | |
| 46 #ifdef HAVE_SCROLLBARS | |
| 47 #include "scrollbar.h" | |
| 48 #endif | |
| 49 | |
| 50 #include "syssignal.h" | |
| 51 | |
| 52 /* Vdefault_device is the firstly-created non-stream device that's still | |
| 53 around. We don't really use it anywhere currently, but it might | |
| 54 be used for resourcing at some point. (Currently we use | |
| 872 | 55 the default X device -- see Vdefault_device_plist.) */ |
| 428 | 56 Lisp_Object Vdefault_device; |
| 57 | |
| 58 Lisp_Object Vcreate_device_hook, Vdelete_device_hook; | |
| 59 | |
| 872 | 60 static Lisp_Object Vdefault_device_plist; |
| 61 | |
| 428 | 62 /* Device classes */ |
| 63 /* Qcolor defined in general.c */ | |
| 64 Lisp_Object Qgrayscale, Qmono; | |
| 65 | |
| 66 /* Device metrics symbols */ | |
| 67 Lisp_Object | |
| 68 Qcolor_default, Qcolor_select, Qcolor_balloon, Qcolor_3d_face, | |
| 69 Qcolor_3d_light, Qcolor_3d_dark, Qcolor_menu, Qcolor_menu_highlight, | |
| 70 Qcolor_menu_button, Qcolor_menu_disabled, Qcolor_toolbar, | |
| 71 Qcolor_scrollbar, Qcolor_desktop, Qcolor_workspace, Qfont_default, | |
| 72 Qfont_menubar, Qfont_dialog, Qsize_cursor, Qsize_scrollbar, | |
| 73 Qsize_menu, Qsize_toolbar, Qsize_toolbar_button, | |
| 74 Qsize_toolbar_border, Qsize_icon, Qsize_icon_small, Qsize_device, | |
| 440 | 75 Qsize_workspace, Qoffset_workspace, Qsize_device_mm, Qdevice_dpi, |
| 1942 | 76 Qnum_bit_planes, Qnum_color_cells, Qnum_screens, Qmouse_buttons, |
| 77 Qsave_under, Qswap_buttons, Qshow_sounds, Qslow_device, Qsecurity, | |
| 78 Qbacking_store; | |
| 428 | 79 |
| 80 Lisp_Object Qdevicep, Qdevice_live_p; | |
| 81 Lisp_Object Qcreate_device_hook; | |
| 82 Lisp_Object Qdelete_device_hook; | |
| 83 Lisp_Object Vdevice_class_list; | |
| 84 | |
| 85 | |
| 934 | 86 |
| 3092 | 87 #ifndef NEW_GC |
| 1204 | 88 extern const struct sized_memory_description gtk_device_data_description; |
| 89 extern const struct sized_memory_description mswindows_device_data_description; | |
| 1346 | 90 extern const struct sized_memory_description msprinter_device_data_description; |
| 1204 | 91 extern const struct sized_memory_description x_device_data_description; |
| 3092 | 92 #endif /* not NEW_GC */ |
| 934 | 93 |
| 1204 | 94 static const struct memory_description device_data_description_1 []= { |
| 3092 | 95 #ifdef NEW_GC |
| 96 #ifdef HAVE_GTK | |
| 97 { XD_LISP_OBJECT, gtk_console }, | |
| 98 #endif | |
| 99 #ifdef HAVE_MS_WINDOWS | |
| 100 { XD_LISP_OBJECT, mswindows_console }, | |
| 101 { XD_LISP_OBJECT, msprinter_console }, | |
| 102 #endif | |
| 103 #ifdef HAVE_X_WINDOWS | |
| 104 { XD_LISP_OBJECT, x_console }, | |
| 105 #endif | |
| 106 #else /* not NEW_GC */ | |
| 934 | 107 #ifdef HAVE_GTK |
| 2551 | 108 { XD_BLOCK_PTR, gtk_console, 1, { >k_device_data_description} }, |
| 934 | 109 #endif |
| 1204 | 110 #ifdef HAVE_MS_WINDOWS |
| 2551 | 111 { XD_BLOCK_PTR, mswindows_console, 1, { &mswindows_device_data_description} }, |
| 112 { XD_BLOCK_PTR, msprinter_console, 1, { &msprinter_device_data_description} }, | |
| 1204 | 113 #endif |
| 934 | 114 #ifdef HAVE_X_WINDOWS |
| 2551 | 115 { XD_BLOCK_PTR, x_console, 1, { &x_device_data_description} }, |
| 934 | 116 #endif |
| 3092 | 117 #endif /* not NEW_GC */ |
| 934 | 118 { XD_END } |
| 119 }; | |
| 120 | |
| 1204 | 121 static const struct sized_memory_description device_data_description = { |
| 122 sizeof (void *), device_data_description_1 | |
| 934 | 123 }; |
| 124 | |
| 1204 | 125 static const struct memory_description device_description [] = { |
| 934 | 126 { XD_INT, offsetof (struct device, devtype) }, |
| 1204 | 127 #define MARKED_SLOT(x) { XD_LISP_OBJECT, offsetof (struct device, x) }, |
| 128 #include "devslots.h" | |
| 129 | |
| 2367 | 130 { XD_BLOCK_PTR, offsetof (struct device, devmeths), 1, |
| 2551 | 131 { &console_methods_description } }, |
| 934 | 132 { XD_UNION, offsetof (struct device, device_data), |
| 2551 | 133 XD_INDIRECT (0, 0), { &device_data_description } }, |
| 934 | 134 { XD_END } |
| 135 }; | |
| 136 | |
| 428 | 137 static Lisp_Object |
| 138 mark_device (Lisp_Object obj) | |
| 139 { | |
| 140 struct device *d = XDEVICE (obj); | |
| 141 | |
| 1204 | 142 #define MARKED_SLOT(x) mark_object (d->x); |
| 617 | 143 #include "devslots.h" |
| 428 | 144 |
| 145 if (d->devmeths) | |
| 146 { | |
| 147 mark_object (d->devmeths->symbol); | |
| 148 MAYBE_DEVMETH (d, mark_device, (d)); | |
| 149 } | |
| 150 | |
| 151 return (d->frame_list); | |
| 152 } | |
| 153 | |
| 154 static void | |
| 2286 | 155 print_device (Lisp_Object obj, Lisp_Object printcharfun, |
| 156 int UNUSED (escapeflag)) | |
| 428 | 157 { |
| 158 struct device *d = XDEVICE (obj); | |
| 159 | |
| 160 if (print_readably) | |
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161 printing_unreadable_lisp_object (obj, XSTRING_DATA (d->name)); |
| 428 | 162 |
| 800 | 163 write_fmt_string (printcharfun, "#<%s-device", !DEVICE_LIVE_P (d) ? "dead" : |
| 164 DEVICE_TYPE_NAME (d)); | |
| 440 | 165 if (DEVICE_LIVE_P (d) && !NILP (DEVICE_CONNECTION (d))) |
| 800 | 166 write_fmt_string_lisp (printcharfun, " on %S", 1, DEVICE_CONNECTION (d)); |
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167 write_fmt_string (printcharfun, " 0x%x>", LISP_OBJECT_UID (obj)); |
| 428 | 168 } |
| 169 | |
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170 DEFINE_NODUMP_LISP_OBJECT ("device", device, |
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171 mark_device, print_device, 0, 0, 0, |
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172 device_description, |
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173 struct device); |
| 428 | 174 |
| 175 int | |
| 1204 | 176 valid_device_class_p (Lisp_Object class_) |
| 428 | 177 { |
| 1204 | 178 return !NILP (memq_no_quit (class_, Vdevice_class_list)); |
| 428 | 179 } |
| 180 | |
| 181 DEFUN ("valid-device-class-p", Fvalid_device_class_p, 1, 1, 0, /* | |
| 182 Given a DEVICE-CLASS, return t if it is valid. | |
| 3025 | 183 Valid classes are `color', `grayscale', and `mono'. |
| 428 | 184 */ |
| 185 (device_class)) | |
| 186 { | |
| 187 return valid_device_class_p (device_class) ? Qt : Qnil; | |
| 188 } | |
| 189 | |
| 190 DEFUN ("device-class-list", Fdevice_class_list, 0, 0, 0, /* | |
| 191 Return a list of valid device classes. | |
| 192 */ | |
| 193 ()) | |
| 194 { | |
| 195 return Fcopy_sequence (Vdevice_class_list); | |
| 196 } | |
| 197 | |
| 617 | 198 static void |
| 199 nuke_all_device_slots (struct device *d, Lisp_Object zap) | |
| 200 { | |
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201 zero_nonsized_lisp_object (wrap_device (d)); |
| 617 | 202 |
| 1204 | 203 #define MARKED_SLOT(x) d->x = zap; |
| 617 | 204 #include "devslots.h" |
| 205 } | |
| 206 | |
| 428 | 207 static struct device * |
| 208 allocate_device (Lisp_Object console) | |
| 209 { | |
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210 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (device); |
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211 struct device *d = XDEVICE (obj); |
| 428 | 212 struct gcpro gcpro1; |
| 213 | |
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214 GCPRO1 (obj); |
| 428 | 215 |
| 617 | 216 nuke_all_device_slots (d, Qnil); |
| 217 | |
| 428 | 218 d->console = console; |
| 219 d->infd = d->outfd = -1; | |
| 220 | |
| 221 /* #### is 20 reasonable? */ | |
| 222 d->color_instance_cache = | |
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223 make_lisp_hash_table (20, HASH_TABLE_KEY_WEAK, Qequal); |
| 428 | 224 d->font_instance_cache = |
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225 make_lisp_hash_table (20, HASH_TABLE_KEY_WEAK, Qequal); |
| 428 | 226 #ifdef MULE |
| 872 | 227 initialize_charset_font_caches (d); |
| 428 | 228 #endif |
| 229 /* | |
| 230 Note that the image instance cache is actually bi-level. | |
| 231 See device.h. We use a low number here because most of the | |
| 232 time there aren't very many different masks that will be used. | |
| 233 */ | |
| 234 d->image_instance_cache = | |
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235 make_lisp_hash_table (5, HASH_TABLE_NON_WEAK, Qeq); |
| 428 | 236 |
| 237 UNGCPRO; | |
| 238 return d; | |
| 239 } | |
| 240 | |
| 241 struct device * | |
| 242 decode_device (Lisp_Object device) | |
| 243 { | |
| 244 if (NILP (device)) | |
| 245 device = Fselected_device (Qnil); | |
| 246 /* quietly accept frames for the device arg */ | |
| 247 else if (FRAMEP (device)) | |
| 248 device = FRAME_DEVICE (decode_frame (device)); | |
| 249 CHECK_LIVE_DEVICE (device); | |
| 250 return XDEVICE (device); | |
| 251 } | |
| 252 | |
| 253 DEFUN ("dfw-device", Fdfw_device, 1, 1, 0, /* | |
| 254 Given a device, frame, or window, return the associated device. | |
| 255 Return nil otherwise. | |
| 256 */ | |
| 444 | 257 (object)) |
| 428 | 258 { |
| 444 | 259 return DFW_DEVICE (object); |
| 428 | 260 } |
| 261 | |
| 872 | 262 Lisp_Object |
| 263 device_console (struct device *d) | |
| 264 { | |
| 265 return DEVICE_CONSOLE (d); | |
| 266 } | |
| 267 | |
| 268 int | |
| 269 device_live_p (struct device *d) | |
| 270 { | |
| 271 return DEVICE_LIVE_P (d); | |
| 272 } | |
| 273 | |
| 274 Lisp_Object | |
| 275 device_frame_list (struct device *d) | |
| 276 { | |
| 277 return DEVICE_FRAME_LIST (d); | |
| 278 } | |
| 279 | |
| 428 | 280 |
| 281 DEFUN ("selected-device", Fselected_device, 0, 1, 0, /* | |
| 282 Return the device which is currently active. | |
| 283 If optional CONSOLE is non-nil, return the device that would be currently | |
| 284 active if CONSOLE were the selected console. | |
| 285 */ | |
| 286 (console)) | |
| 287 { | |
| 288 if (NILP (console) && NILP (Vselected_console)) | |
| 289 return Qnil; /* happens early in temacs */ | |
| 290 return CONSOLE_SELECTED_DEVICE (decode_console (console)); | |
| 291 } | |
| 292 | |
| 293 /* Called from selected_frame_1(), called from Fselect_window() */ | |
| 294 void | |
| 295 select_device_1 (Lisp_Object device) | |
| 296 { | |
| 297 struct device *dev = XDEVICE (device); | |
| 298 Lisp_Object old_selected_device = Fselected_device (Qnil); | |
| 299 | |
| 300 if (EQ (device, old_selected_device)) | |
| 301 return; | |
| 302 | |
| 303 /* now select the device's console */ | |
| 304 CONSOLE_SELECTED_DEVICE (XCONSOLE (DEVICE_CONSOLE (dev))) = device; | |
| 305 select_console_1 (DEVICE_CONSOLE (dev)); | |
| 306 } | |
| 307 | |
| 308 DEFUN ("select-device", Fselect_device, 1, 1, 0, /* | |
| 309 Select the device DEVICE. | |
| 310 Subsequent editing commands apply to its console, selected frame, | |
| 311 and selected window. | |
| 312 The selection of DEVICE lasts until the next time the user does | |
| 313 something to select a different device, or until the next time this | |
| 314 function is called. | |
| 315 */ | |
| 316 (device)) | |
| 317 { | |
| 318 CHECK_LIVE_DEVICE (device); | |
| 319 | |
| 320 /* select the device's selected frame's selected window. This will call | |
| 321 selected_frame_1()->selected_device_1()->selected_console_1(). */ | |
| 322 if (!NILP (DEVICE_SELECTED_FRAME (XDEVICE (device)))) | |
| 323 Fselect_window (FRAME_SELECTED_WINDOW | |
| 324 (XFRAME (DEVICE_SELECTED_FRAME (XDEVICE (device)))), | |
| 325 Qnil); | |
| 326 else | |
| 563 | 327 invalid_operation ("Can't select a device with no frames", Qunbound); |
| 428 | 328 return Qnil; |
| 329 } | |
| 330 | |
| 331 void | |
| 332 set_device_selected_frame (struct device *d, Lisp_Object frame) | |
| 333 { | |
| 334 if (!NILP (frame) && !FRAME_MINIBUF_ONLY_P (XFRAME (frame))) | |
| 335 set_console_last_nonminibuf_frame (XCONSOLE (DEVICE_CONSOLE (d)), frame); | |
| 336 d->selected_frame = frame; | |
| 337 } | |
| 338 | |
| 339 DEFUN ("set-device-selected-frame", Fset_device_selected_frame, 2, 2, 0, /* | |
| 340 Set the selected frame of device object DEVICE to FRAME. | |
| 341 If DEVICE is nil, the selected device is used. | |
| 342 If DEVICE is the selected device, this makes FRAME the selected frame. | |
| 343 */ | |
| 344 (device, frame)) | |
| 345 { | |
| 793 | 346 device = wrap_device (decode_device (device)); |
| 428 | 347 CHECK_LIVE_FRAME (frame); |
| 348 | |
| 349 if (! EQ (device, FRAME_DEVICE (XFRAME (frame)))) | |
| 617 | 350 invalid_argument ("In `set-device-selected-frame', FRAME is not on DEVICE", |
| 351 Qunbound); | |
| 428 | 352 |
| 353 if (EQ (device, Fselected_device (Qnil))) | |
| 354 return Fselect_frame (frame); | |
| 355 | |
| 356 set_device_selected_frame (XDEVICE (device), frame); | |
| 357 return frame; | |
| 358 } | |
| 359 | |
| 360 DEFUN ("devicep", Fdevicep, 1, 1, 0, /* | |
| 361 Return non-nil if OBJECT is a device. | |
| 362 */ | |
| 363 (object)) | |
| 364 { | |
| 365 return DEVICEP (object) ? Qt : Qnil; | |
| 366 } | |
| 367 | |
| 368 DEFUN ("device-live-p", Fdevice_live_p, 1, 1, 0, /* | |
| 369 Return non-nil if OBJECT is a device that has not been deleted. | |
| 370 */ | |
| 371 (object)) | |
| 372 { | |
| 373 return DEVICEP (object) && DEVICE_LIVE_P (XDEVICE (object)) ? Qt : Qnil; | |
| 374 } | |
| 375 | |
| 376 DEFUN ("device-name", Fdevice_name, 0, 1, 0, /* | |
| 377 Return the name of the specified device. | |
| 378 DEVICE defaults to the selected device if omitted. | |
| 379 */ | |
| 380 (device)) | |
| 381 { | |
| 382 return DEVICE_NAME (decode_device (device)); | |
| 383 } | |
| 384 | |
| 385 DEFUN ("device-connection", Fdevice_connection, 0, 1, 0, /* | |
| 386 Return the connection of the specified device. | |
| 387 DEVICE defaults to the selected device if omitted. | |
| 388 */ | |
| 389 (device)) | |
| 390 { | |
| 391 return DEVICE_CONNECTION (decode_device (device)); | |
| 392 } | |
| 393 | |
| 394 DEFUN ("device-console", Fdevice_console, 0, 1, 0, /* | |
| 395 Return the console of the specified device. | |
| 396 DEVICE defaults to the selected device if omitted. | |
| 397 */ | |
| 398 (device)) | |
| 399 { | |
| 400 return DEVICE_CONSOLE (decode_device (device)); | |
| 401 } | |
| 402 | |
| 403 static void | |
| 404 init_global_resources (struct device *d) | |
| 405 { | |
| 406 init_global_faces (d); | |
| 407 #ifdef HAVE_SCROLLBARS | |
| 408 init_global_scrollbars (d); | |
| 409 #endif | |
| 410 #ifdef HAVE_TOOLBARS | |
| 411 init_global_toolbars (d); | |
| 412 #endif | |
| 413 } | |
| 414 | |
| 415 static void | |
| 416 init_device_resources (struct device *d) | |
| 417 { | |
| 418 init_device_faces (d); | |
| 419 #ifdef HAVE_SCROLLBARS | |
| 420 init_device_scrollbars (d); | |
| 421 #endif | |
| 422 #ifdef HAVE_TOOLBARS | |
| 423 init_device_toolbars (d); | |
| 424 #endif | |
| 425 } | |
| 426 | |
| 872 | 427 DEFUN ("default-device", Fdefault_device, 0, 1, 0, /* |
| 428 Return the default device of type TYPE. | |
| 429 This is generally the first-created device of that TYPE that still exists. | |
| 430 It is used for resourcing and certain other things. On MS Windows, it | |
| 431 is not very useful because there is generally only one device. | |
| 432 If TYPE is omitted, it is derived from the selected device. | |
| 433 If there is no default device of TYPE, nil is returned. | |
| 434 */ | |
| 435 (type)) | |
| 436 { | |
| 437 if (NILP (type)) | |
| 438 type = XDEVICE_TYPE (Fselected_device (Qnil)); | |
| 439 else | |
| 440 /* For errors */ | |
| 441 decode_console_type (type, ERROR_ME); | |
| 442 | |
| 443 return Fplist_get (Vdefault_device_plist, type, Qnil); | |
| 444 } | |
| 445 | |
| 446 /* Return the default device for a device type. */ | |
| 447 Lisp_Object | |
| 448 get_default_device (Lisp_Object type) | |
| 449 { | |
| 450 return Fplist_get (Vdefault_device_plist, type, Qnil); | |
| 451 } | |
| 452 | |
| 453 /* Set the default device for a device type. */ | |
| 454 void | |
| 455 set_default_device (Lisp_Object type, Lisp_Object device) | |
| 456 { | |
| 457 Vdefault_device_plist = Fplist_put (Vdefault_device_plist, type, device); | |
| 458 } | |
| 459 | |
| 460 void | |
| 461 clear_default_devices (void) | |
| 462 { | |
| 463 Vdefault_device_plist = Qnil; | |
| 464 } | |
| 465 | |
| 428 | 466 static Lisp_Object |
| 467 semi_canonicalize_device_connection (struct console_methods *meths, | |
| 578 | 468 Lisp_Object name, Error_Behavior errb) |
| 428 | 469 { |
| 440 | 470 if (HAS_CONTYPE_METH_P (meths, semi_canonicalize_device_connection)) |
| 471 return CONTYPE_METH (meths, semi_canonicalize_device_connection, | |
| 472 (name, errb)); | |
| 473 else | |
| 474 return CONTYPE_METH_OR_GIVEN (meths, canonicalize_device_connection, | |
| 475 (name, errb), name); | |
| 428 | 476 } |
| 477 | |
| 478 static Lisp_Object | |
| 479 canonicalize_device_connection (struct console_methods *meths, | |
| 578 | 480 Lisp_Object name, Error_Behavior errb) |
| 428 | 481 { |
| 440 | 482 if (HAS_CONTYPE_METH_P (meths, canonicalize_device_connection)) |
| 483 return CONTYPE_METH (meths, canonicalize_device_connection, | |
| 484 (name, errb)); | |
| 485 else | |
| 486 return CONTYPE_METH_OR_GIVEN (meths, semi_canonicalize_device_connection, | |
| 487 (name, errb), name); | |
| 428 | 488 } |
| 489 | |
| 490 static Lisp_Object | |
| 491 find_device_of_type (struct console_methods *meths, Lisp_Object canon) | |
| 492 { | |
| 493 Lisp_Object devcons, concons; | |
| 494 | |
| 495 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 496 { | |
| 497 Lisp_Object device = XCAR (devcons); | |
| 498 | |
|
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parents:
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|
499 if (EQ (CONMETH_TYPE (meths), DEVICE_TYPE_X (XDEVICE (device))) |
| 428 | 500 && internal_equal (DEVICE_CANON_CONNECTION (XDEVICE (device)), |
| 501 canon, 0)) | |
| 502 return device; | |
| 503 } | |
| 504 | |
| 505 return Qnil; | |
| 506 } | |
| 507 | |
| 508 DEFUN ("find-device", Ffind_device, 1, 2, 0, /* | |
| 509 Look for an existing device attached to connection CONNECTION. | |
| 510 Return the device if found; otherwise, return nil. | |
| 511 | |
| 512 If TYPE is specified, only return devices of that type; otherwise, | |
| 513 return devices of any type. (It is possible, although unlikely, | |
| 514 that two devices of different types could have the same connection | |
| 515 name; in such a case, the first device found is returned.) | |
| 516 */ | |
| 517 (connection, type)) | |
| 518 { | |
| 519 Lisp_Object canon = Qnil; | |
| 520 struct gcpro gcpro1; | |
| 521 | |
| 522 GCPRO1 (canon); | |
| 523 | |
| 524 if (!NILP (type)) | |
| 525 { | |
| 526 struct console_methods *conmeths = decode_console_type (type, ERROR_ME); | |
| 527 canon = canonicalize_device_connection (conmeths, connection, | |
| 528 ERROR_ME_NOT); | |
| 529 if (UNBOUNDP (canon)) | |
| 530 RETURN_UNGCPRO (Qnil); | |
| 531 | |
| 532 RETURN_UNGCPRO (find_device_of_type (conmeths, canon)); | |
| 533 } | |
| 534 else | |
| 535 { | |
| 536 int i; | |
| 537 | |
| 538 for (i = 0; i < Dynarr_length (the_console_type_entry_dynarr); i++) | |
| 539 { | |
| 540 struct console_methods *conmeths = | |
| 541 Dynarr_at (the_console_type_entry_dynarr, i).meths; | |
| 542 canon = canonicalize_device_connection (conmeths, connection, | |
| 543 ERROR_ME_NOT); | |
| 544 if (!UNBOUNDP (canon)) | |
| 545 { | |
| 546 Lisp_Object device = find_device_of_type (conmeths, canon); | |
| 547 if (!NILP (device)) | |
| 548 RETURN_UNGCPRO (device); | |
| 549 } | |
| 550 } | |
| 551 | |
| 552 RETURN_UNGCPRO (Qnil); | |
| 553 } | |
| 554 } | |
| 555 | |
| 556 DEFUN ("get-device", Fget_device, 1, 2, 0, /* | |
| 557 Look for an existing device attached to connection CONNECTION. | |
| 558 Return the device if found; otherwise, signal an error. | |
| 559 | |
| 560 If TYPE is specified, only return devices of that type; otherwise, | |
| 561 return devices of any type. (It is possible, although unlikely, | |
| 562 that two devices of different types could have the same connection | |
| 563 name; in such a case, the first device found is returned.) | |
| 564 */ | |
| 565 (connection, type)) | |
| 566 { | |
| 567 Lisp_Object device = Ffind_device (connection, type); | |
| 568 if (NILP (device)) | |
| 569 { | |
| 570 if (NILP (type)) | |
| 563 | 571 invalid_argument ("No such device", connection); |
| 428 | 572 else |
| 563 | 573 invalid_argument_2 ("No such device", type, connection); |
| 428 | 574 } |
| 575 return device; | |
| 576 } | |
| 577 | |
| 578 static Lisp_Object | |
| 579 delete_deviceless_console (Lisp_Object console) | |
| 580 { | |
| 581 if (NILP (XCONSOLE (console)->device_list)) | |
| 582 Fdelete_console (console, Qnil); | |
| 583 return Qnil; | |
| 584 } | |
| 585 | |
| 586 DEFUN ("make-device", Fmake_device, 2, 3, 0, /* | |
| 587 Return a new device of type TYPE, attached to connection CONNECTION. | |
| 588 | |
| 589 The valid values for CONNECTION are device-specific; however, | |
| 590 CONNECTION is generally a string. (Specifically, for X devices, | |
| 591 CONNECTION should be a display specification such as "foo:0", and | |
| 592 for TTY devices, CONNECTION should be the filename of a TTY device | |
| 593 file, such as "/dev/ttyp4", or nil to refer to XEmacs' standard | |
| 594 input/output.) | |
| 595 | |
| 596 PROPS, if specified, should be a plist of properties controlling | |
| 597 device creation. | |
| 598 | |
| 599 If CONNECTION specifies an already-existing device connection, that | |
| 600 device is simply returned; no new device is created, and PROPS | |
| 601 have no effect. | |
| 602 */ | |
| 603 (type, connection, props)) | |
| 604 { | |
| 605 /* This function can GC */ | |
| 606 struct device *d; | |
| 607 struct console *con; | |
| 608 Lisp_Object device = Qnil; | |
| 609 Lisp_Object console = Qnil; | |
| 610 Lisp_Object name = Qnil; | |
| 611 struct console_methods *conmeths; | |
| 1204 | 612 int speccount = specpdl_depth (); |
| 428 | 613 |
| 614 struct gcpro gcpro1, gcpro2, gcpro3; | |
| 872 | 615 /* If this is the first device we are creating of a particular type |
| 616 (e.g. X), then retrieve the global face resources. We have to do it | |
| 617 here, at the same time as (or just before) the device face resources | |
| 618 are retrieved; specifically, it needs to be done after the device has | |
| 619 been created but before any frames have been popped up or much | |
| 620 anything else has been done. It's possible for other devices to | |
| 621 specify different global resources (there's a property on each X | |
| 622 server's root window that holds some resources); tough luck for the | |
| 623 moment. */ | |
| 624 int first = NILP (get_default_device (type)); | |
| 428 | 625 |
| 626 GCPRO3 (device, console, name); | |
| 627 | |
| 628 conmeths = decode_console_type (type, ERROR_ME_NOT); | |
| 629 if (!conmeths) | |
| 563 | 630 invalid_constant ("Invalid device type", type); |
| 428 | 631 |
| 632 device = Ffind_device (connection, type); | |
| 633 if (!NILP (device)) | |
| 634 RETURN_UNGCPRO (device); | |
| 635 | |
| 636 name = Fplist_get (props, Qname, Qnil); | |
| 637 | |
| 638 { | |
| 639 Lisp_Object conconnect = | |
| 640 (HAS_CONTYPE_METH_P (conmeths, device_to_console_connection)) ? | |
| 641 CONTYPE_METH (conmeths, device_to_console_connection, | |
| 642 (connection, ERROR_ME)) : | |
| 643 connection; | |
| 644 console = create_console (name, type, conconnect, props); | |
| 645 } | |
| 646 | |
| 872 | 647 record_unwind_protect (delete_deviceless_console, console); |
| 428 | 648 |
| 649 con = XCONSOLE (console); | |
| 650 d = allocate_device (console); | |
| 793 | 651 device = wrap_device (d); |
| 428 | 652 |
| 653 d->devmeths = con->conmeths; | |
| 934 | 654 d->devtype = get_console_variant (type); |
| 428 | 655 |
| 656 DEVICE_NAME (d) = name; | |
| 657 DEVICE_CONNECTION (d) = | |
| 658 semi_canonicalize_device_connection (conmeths, connection, ERROR_ME); | |
| 659 DEVICE_CANON_CONNECTION (d) = | |
| 660 canonicalize_device_connection (conmeths, connection, ERROR_ME); | |
| 661 | |
| 662 MAYBE_DEVMETH (d, init_device, (d, props)); | |
| 663 | |
| 664 /* Do it this way so that the device list is in order of creation */ | |
| 665 con->device_list = nconc2 (con->device_list, Fcons (device, Qnil)); | |
| 872 | 666 |
| 667 if (NILP (get_default_device (type))) | |
| 668 set_default_device (type, device); | |
| 669 | |
| 853 | 670 note_object_created (device); |
| 671 | |
| 428 | 672 RESET_CHANGED_SET_FLAGS; |
| 673 if (NILP (Vdefault_device) || DEVICE_STREAM_P (XDEVICE (Vdefault_device))) | |
| 674 Vdefault_device = device; | |
| 675 | |
| 676 init_device_sound (d); | |
| 677 | |
| 678 /* If this is the first device on the console, make it the selected one. */ | |
| 679 if (NILP (CONSOLE_SELECTED_DEVICE (con))) | |
| 680 CONSOLE_SELECTED_DEVICE (con) = device; | |
| 681 | |
| 872 | 682 /* Needed before initialization of resources because they may do things |
| 683 with the tags, esp. the face code. For example, | |
| 684 init-other-random-faces calls face-property-instance, and the | |
| 685 specifier code checks inst-pairs by seeing if the device matches the | |
| 686 tag; this fails for tags such as `default', if we haven't set up the | |
| 687 tags yet. */ | |
| 428 | 688 setup_device_initial_specifier_tags (d); |
| 689 | |
| 872 | 690 if (!EQ (type, Qstream)) |
| 691 { | |
| 692 if (first) | |
| 693 init_global_resources (d); | |
| 694 init_device_resources (d); | |
| 695 } | |
| 696 | |
| 697 MAYBE_DEVMETH (d, finish_init_device, (d, props)); | |
| 698 | |
| 428 | 699 UNGCPRO; |
| 771 | 700 unbind_to (speccount); |
| 428 | 701 return device; |
| 702 } | |
| 703 | |
| 704 /* find a device other than the selected one. Prefer non-stream | |
| 705 devices over stream devices. Maybe stay on the same console. */ | |
| 706 | |
| 707 static Lisp_Object | |
| 708 find_other_device (Lisp_Object device, int on_same_console) | |
| 709 { | |
| 710 Lisp_Object devcons = Qnil, concons; | |
| 711 Lisp_Object console = DEVICE_CONSOLE (XDEVICE (device)); | |
| 712 | |
| 713 /* look for a non-stream device */ | |
| 714 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 715 { | |
| 716 Lisp_Object dev = XCAR (devcons); | |
| 717 if (on_same_console && !EQ (console, DEVICE_CONSOLE (XDEVICE (dev)))) | |
| 718 continue; | |
| 719 if (!DEVICE_STREAM_P (XDEVICE (dev)) && !EQ (dev, device) && | |
| 720 !NILP (DEVICE_SELECTED_FRAME (XDEVICE (dev)))) | |
| 721 goto double_break_1; | |
| 722 } | |
| 723 | |
| 724 double_break_1: | |
| 725 if (!NILP (devcons)) | |
| 726 return XCAR (devcons); | |
| 727 | |
| 728 /* OK, now look for a stream device */ | |
| 729 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 730 { | |
| 731 Lisp_Object dev = XCAR (devcons); | |
| 732 if (on_same_console && !EQ (console, DEVICE_CONSOLE (XDEVICE (dev)))) | |
| 733 continue; | |
| 734 if (!EQ (dev, device) && !NILP (DEVICE_SELECTED_FRAME (XDEVICE (dev)))) | |
| 735 goto double_break_2; | |
| 736 } | |
| 737 double_break_2: | |
| 738 if (!NILP (devcons)) | |
| 739 return XCAR (devcons); | |
| 740 | |
| 741 /* Sorry, there ain't none */ | |
| 742 return Qnil; | |
| 743 } | |
| 744 | |
| 745 static int | |
| 746 find_nonminibuffer_frame_not_on_device_predicate (Lisp_Object frame, | |
| 747 void *closure) | |
| 748 { | |
| 749 Lisp_Object device; | |
| 750 | |
| 5013 | 751 device = GET_LISP_FROM_VOID (closure); |
| 428 | 752 if (FRAME_MINIBUF_ONLY_P (XFRAME (frame))) |
| 753 return 0; | |
| 754 if (EQ (device, FRAME_DEVICE (XFRAME (frame)))) | |
| 755 return 0; | |
| 756 return 1; | |
| 757 } | |
| 758 | |
| 759 Lisp_Object | |
| 760 find_nonminibuffer_frame_not_on_device (Lisp_Object device) | |
| 761 { | |
| 762 return find_some_frame (find_nonminibuffer_frame_not_on_device_predicate, | |
| 5013 | 763 STORE_LISP_IN_VOID (device)); |
| 428 | 764 } |
| 765 | |
| 766 | |
| 767 /* Delete device D. | |
| 768 | |
| 769 If FORCE is non-zero, allow deletion of the only frame. | |
| 770 | |
| 771 If CALLED_FROM_DELETE_CONSOLE is non-zero, then, if | |
| 772 deleting the last device on a console, just delete it, | |
| 773 instead of calling `delete-console'. | |
| 774 | |
| 775 If FROM_IO_ERROR is non-zero, then the device is gone due | |
| 776 to an I/O error. This affects what happens if we exit | |
| 777 (we do an emergency exit instead of `save-buffers-kill-emacs'.) | |
| 778 */ | |
| 779 | |
| 780 void | |
| 781 delete_device_internal (struct device *d, int force, | |
| 782 int called_from_delete_console, | |
| 783 int from_io_error) | |
| 784 { | |
| 785 /* This function can GC */ | |
| 786 struct console *c; | |
| 787 Lisp_Object device; | |
| 788 struct gcpro gcpro1; | |
| 789 | |
| 790 /* OK to delete an already-deleted device. */ | |
| 791 if (!DEVICE_LIVE_P (d)) | |
| 792 return; | |
| 793 | |
| 793 | 794 device = wrap_device (d); |
| 853 | 795 |
| 796 if (!force) | |
| 797 check_allowed_operation (OPERATION_DELETE_OBJECT, device, Qnil); | |
| 798 | |
| 428 | 799 GCPRO1 (device); |
| 800 | |
| 801 c = XCONSOLE (DEVICE_CONSOLE (d)); | |
| 802 | |
| 803 if (!called_from_delete_console) | |
| 804 { | |
| 805 int delete_console = 0; | |
| 806 /* If we're deleting the only device on the console, | |
| 807 delete the console. */ | |
|
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|
808 if ((XFIXNUM (Flength (CONSOLE_DEVICE_LIST (c))) == 1) |
| 428 | 809 /* if we just created the device, it might not be listed, |
| 810 or something ... */ | |
| 811 && !NILP (memq_no_quit (device, CONSOLE_DEVICE_LIST (c)))) | |
| 812 delete_console = 1; | |
| 813 /* Or if there aren't any nonminibuffer frames that would be | |
| 814 left, delete the console (this will make XEmacs exit). */ | |
| 815 else if (NILP (find_nonminibuffer_frame_not_on_device (device))) | |
| 816 delete_console = 1; | |
| 817 | |
| 818 if (delete_console) | |
| 819 { | |
| 820 delete_console_internal (c, force, 0, from_io_error); | |
| 821 UNGCPRO; | |
| 822 return; | |
| 823 } | |
| 824 } | |
| 825 | |
| 826 reset_one_device (d); | |
| 827 | |
| 828 { | |
| 829 Lisp_Object frmcons; | |
| 830 | |
| 831 /* First delete all frames without their own minibuffers, | |
| 832 to avoid errors coming from attempting to delete a frame | |
| 833 that is a surrogate for another frame. */ | |
| 834 DEVICE_FRAME_LOOP (frmcons, d) | |
| 835 { | |
| 836 struct frame *f = XFRAME (XCAR (frmcons)); | |
| 837 /* delete_frame_internal() might do anything such as run hooks, | |
| 838 so be defensive. */ | |
| 839 if (FRAME_LIVE_P (f) && !FRAME_HAS_MINIBUF_P (f)) | |
| 840 delete_frame_internal (f, 1, 1, from_io_error); | |
| 841 | |
| 842 if (!DEVICE_LIVE_P (d)) /* make sure the delete-*-hook didn't | |
| 843 go ahead and delete anything */ | |
| 844 { | |
| 845 UNGCPRO; | |
| 846 return; | |
| 847 } | |
| 848 } | |
| 849 | |
| 850 /* #### This should probably be a device method but it is time for | |
| 851 19.14 to go out the door. */ | |
| 1204 | 852 /* #### BILL!!! Should this deal with HAVE_MS_WINDOWS as well? */ |
| 462 | 853 #if defined (HAVE_X_WINDOWS) || defined (HAVE_GTK) |
| 428 | 854 /* Next delete all frames which have the popup property to avoid |
| 855 deleting a child after its parent. */ | |
| 856 DEVICE_FRAME_LOOP (frmcons, d) | |
| 857 { | |
| 858 struct frame *f = XFRAME (XCAR (frmcons)); | |
| 859 | |
| 860 if (FRAME_LIVE_P (f)) | |
| 861 { | |
| 862 Lisp_Object popup = Fframe_property (XCAR (frmcons), Qpopup, Qnil); | |
| 863 if (!NILP (popup)) | |
| 864 delete_frame_internal (f, 1, 1, from_io_error); | |
| 865 | |
| 866 if (!DEVICE_LIVE_P (d)) /* make sure the delete-*-hook didn't | |
| 867 go ahead and delete anything */ | |
| 868 { | |
| 869 UNGCPRO; | |
| 870 return; | |
| 871 } | |
| 872 } | |
| 873 } | |
| 874 #endif /* HAVE_X_WINDOWS */ | |
| 875 | |
| 876 DEVICE_FRAME_LOOP (frmcons, d) | |
| 877 { | |
| 878 struct frame *f = XFRAME (XCAR (frmcons)); | |
| 879 /* delete_frame_internal() might do anything such as run hooks, | |
| 880 so be defensive. */ | |
| 881 if (FRAME_LIVE_P (f)) | |
| 882 delete_frame_internal (f, 1, 1, from_io_error); | |
| 883 | |
| 884 if (!DEVICE_LIVE_P (d)) /* make sure the delete-*-hook didn't | |
| 885 go ahead and delete anything */ | |
| 886 { | |
| 887 UNGCPRO; | |
| 888 return; | |
| 889 } | |
| 890 } | |
| 891 } | |
| 892 | |
| 893 set_device_selected_frame (d, Qnil); | |
| 894 | |
| 895 /* try to select another device */ | |
| 896 | |
| 897 if (EQ (device, Fselected_device (DEVICE_CONSOLE (d)))) | |
| 898 { | |
| 899 Lisp_Object other_dev = find_other_device (device, 1); | |
| 900 if (!NILP (other_dev)) | |
| 901 Fselect_device (other_dev); | |
| 902 } | |
| 903 | |
| 904 if (EQ (device, Vdefault_device)) | |
| 905 Vdefault_device = find_other_device (device, 0); | |
| 906 | |
| 907 MAYBE_DEVMETH (d, delete_device, (d)); | |
| 908 | |
| 872 | 909 /* Now see if we're the default device, and thus need to be changed. */ |
| 910 { | |
| 911 /* Device type still OK, not set to null till down below. */ | |
|
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Henry Thompson <ht@markup.co.uk>
parents:
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diff
changeset
|
912 Lisp_Object dt = DEVICE_TYPE_X (d); |
| 872 | 913 |
| 914 if (EQ (device, get_default_device (dt))) | |
| 915 { | |
| 916 Lisp_Object devcons, concons; | |
| 917 /* #### handle deleting last device */ | |
| 918 set_default_device (dt, Qnil); | |
| 919 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 920 { | |
| 921 if (EQ (dt, XDEVICE_TYPE (XCAR (devcons))) && | |
| 922 !EQ (device, XCAR (devcons))) | |
| 923 { | |
| 924 set_default_device (dt, XCAR (devcons)); | |
| 925 goto double_break; | |
| 926 } | |
| 927 } | |
| 928 } | |
| 929 } | |
| 930 double_break: | |
| 931 | |
| 428 | 932 CONSOLE_DEVICE_LIST (c) = delq_no_quit (device, CONSOLE_DEVICE_LIST (c)); |
| 617 | 933 |
| 428 | 934 RESET_CHANGED_SET_FLAGS; |
| 617 | 935 |
| 936 /* Nobody should be accessing anything in this object any more, and | |
| 937 making all Lisp_Objects Qnil allows for better GC'ing in case a | |
| 938 pointer to the dead device continues to hang around. Zero all | |
| 939 other structs in case someone tries to access something through | |
| 940 them. */ | |
| 941 nuke_all_device_slots (d, Qnil); | |
| 428 | 942 d->devmeths = dead_console_methods; |
| 1204 | 943 d->devtype = dead_console; |
| 853 | 944 note_object_deleted (device); |
| 617 | 945 |
| 428 | 946 UNGCPRO; |
| 947 } | |
| 948 | |
| 949 /* delete a device as a result of an I/O error. Called from | |
| 950 an enqueued magic-eval event. */ | |
| 951 | |
| 952 void | |
| 953 io_error_delete_device (Lisp_Object device) | |
| 954 { | |
| 955 /* Note: it's the console that should get deleted, but | |
| 956 delete_device_internal() contains a hack that also deletes the | |
| 957 console when called from this function. */ | |
| 958 delete_device_internal (XDEVICE (device), 1, 0, 1); | |
| 959 } | |
| 960 | |
| 961 DEFUN ("delete-device", Fdelete_device, 1, 2, 0, /* | |
| 962 Delete DEVICE, permanently eliminating it from use. | |
| 963 Normally, you cannot delete the last non-minibuffer-only frame (you must | |
| 964 use `save-buffers-kill-emacs' or `kill-emacs'). However, if optional | |
| 965 second argument FORCE is non-nil, you can delete the last frame. (This | |
| 966 will automatically call `save-buffers-kill-emacs'.) | |
| 967 */ | |
| 968 (device, force)) | |
| 969 { | |
| 970 CHECK_DEVICE (device); | |
| 971 delete_device_internal (XDEVICE (device), !NILP (force), 0, 0); | |
| 972 return Qnil; | |
| 973 } | |
| 974 | |
| 975 DEFUN ("device-frame-list", Fdevice_frame_list, 0, 1, 0, /* | |
| 976 Return a list of all frames on DEVICE. | |
| 977 If DEVICE is nil, the selected device will be used. | |
| 978 */ | |
| 979 (device)) | |
| 980 { | |
| 981 return Fcopy_sequence (DEVICE_FRAME_LIST (decode_device (device))); | |
| 982 } | |
| 983 | |
| 984 DEFUN ("device-class", Fdevice_class, 0, 1, 0, /* | |
| 985 Return the class (color behavior) of DEVICE. | |
| 3025 | 986 This will be one of `color', `grayscale', or `mono'. |
| 428 | 987 */ |
| 988 (device)) | |
| 989 { | |
| 990 return DEVICE_CLASS (decode_device (device)); | |
| 991 } | |
| 992 | |
| 993 DEFUN ("set-device-class", Fset_device_class, 2, 2, 0, /* | |
| 994 Set the class (color behavior) of DEVICE. | |
| 3025 | 995 CLASS should be one of `color', `grayscale', or `mono'. |
| 428 | 996 This is only allowed on device such as TTY devices, where the color |
| 997 behavior cannot necessarily be determined automatically. | |
| 998 */ | |
| 1204 | 999 (device, class_)) |
| 428 | 1000 { |
| 1001 struct device *d = decode_device (device); | |
| 793 | 1002 device = wrap_device (d); |
| 428 | 1003 if (!DEVICE_TTY_P (d)) |
| 563 | 1004 gui_error ("Cannot change the class of this device", device); |
| 1204 | 1005 if (!EQ (class_, Qcolor) && !EQ (class_, Qmono) && !EQ (class_, Qgrayscale)) |
| 1006 invalid_constant ("Must be color, mono, or grayscale", class_); | |
| 1007 if (! EQ (DEVICE_CLASS (d), class_)) | |
| 428 | 1008 { |
| 1009 Lisp_Object frmcons; | |
| 1204 | 1010 DEVICE_CLASS (d) = class_; |
| 428 | 1011 DEVICE_FRAME_LOOP (frmcons, d) |
| 1012 { | |
| 1013 struct frame *f = XFRAME (XCAR (frmcons)); | |
| 1014 | |
| 1015 recompute_all_cached_specifiers_in_frame (f); | |
| 1016 MARK_FRAME_FACES_CHANGED (f); | |
| 1017 MARK_FRAME_GLYPHS_CHANGED (f); | |
| 1018 MARK_FRAME_SUBWINDOWS_CHANGED (f); | |
| 1019 MARK_FRAME_TOOLBARS_CHANGED (f); | |
| 442 | 1020 MARK_FRAME_GUTTERS_CHANGED (f); |
| 428 | 1021 f->menubar_changed = 1; |
| 1022 } | |
| 1023 } | |
| 1024 return Qnil; | |
| 1025 } | |
| 1026 | |
| 1027 DEFUN ("set-device-baud-rate", Fset_device_baud_rate, 2, 2, 0, /* | |
| 1028 Set the output baud rate of DEVICE to RATE. | |
| 1029 On most systems, changing this value will affect the amount of padding | |
| 1030 and other strategic decisions made during redisplay. | |
| 1031 */ | |
| 1032 (device, rate)) | |
| 1033 { | |
|
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1034 CHECK_FIXNUM (rate); |
| 428 | 1035 |
|
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1036 DEVICE_BAUD_RATE (decode_device (device)) = XFIXNUM (rate); |
| 428 | 1037 |
| 1038 return rate; | |
| 1039 } | |
| 1040 | |
| 1041 DEFUN ("device-baud-rate", Fdevice_baud_rate, 0, 1, 0, /* | |
| 1042 Return the output baud rate of DEVICE. | |
| 1043 */ | |
| 1044 (device)) | |
| 1045 { | |
|
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1046 return make_fixnum (DEVICE_BAUD_RATE (decode_device (device))); |
| 428 | 1047 } |
| 1048 | |
| 440 | 1049 DEFUN ("device-printer-p", Fdevice_printer_p, 0, 1, 0, /* |
| 1050 Return t if DEVICE is a printer, nil if it is a display. DEVICE defaults | |
| 1051 to selected device if omitted, and must be live if specified. | |
| 1052 */ | |
| 1053 (device)) | |
| 1054 { | |
| 442 | 1055 return DEVICE_PRINTER_P (decode_device (device)) ? Qt : Qnil; |
| 440 | 1056 } |
| 1057 | |
|
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1058 DEFUN ("device-system-metric", Fdevice_system_metric, 2, 3, 0, /* |
|
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|
1059 Get DEVICE METRIC as provided by the system. |
| 428 | 1060 |
| 1061 METRIC must be a symbol specifying requested metric. Note that the metrics | |
| 1062 returned are these provided by the system internally, not read from resources, | |
| 1063 so obtained from the most internal level. | |
| 1064 | |
| 1065 If a metric is not provided by the system, then DEFAULT is returned. | |
| 1066 | |
| 1067 When DEVICE is nil, selected device is assumed | |
| 1068 | |
| 1069 Metrics, by group, are: | |
| 1070 | |
| 1071 COLORS. Colors are returned as valid color instantiators. No other assumption | |
| 1072 on the returned value should be made (i.e. it can be a string on one system but | |
| 1073 a color instance on another). For colors, returned value is a cons of | |
| 1074 foreground and background colors. Note that if the system provides only one | |
| 1075 color of the pair, the second one may be nil. | |
| 1076 | |
| 1077 color-default Standard window text foreground and background. | |
| 1078 color-select Selection highlight text and background colors. | |
| 1079 color-balloon Balloon popup text and background colors. | |
| 1080 color-3d-face 3-D object (button, modeline) text and surface colors. | |
| 1081 color-3d-light Fore and back colors for 3-D edges facing light source. | |
| 1082 color-3d-dark Fore and back colors for 3-D edges facing away from | |
| 1083 light source. | |
| 1084 color-menu Text and background for menus | |
| 1085 color-menu-highlight Selected menu item colors | |
| 1086 color-menu-button Menu button colors | |
| 1087 color-menu-disabled Unselectable menu item colors | |
| 1088 color-toolbar Toolbar foreground and background colors | |
| 1089 color-scrollbar Scrollbar foreground and background colors | |
| 1090 color-desktop Desktop window colors | |
| 1091 color-workspace Workspace window colors | |
| 1092 | |
| 1093 FONTS. Fonts are returned as valid font instantiators. No other assumption on | |
| 1094 the returned value should be made (i.e. it can be a string on one system but | |
| 1095 font instance on another). | |
| 1096 | |
| 1097 font-default Default fixed width font. | |
| 1098 font-menubar Menubar font | |
| 1099 font-dialog Dialog boxes font | |
| 1100 | |
| 1101 GEOMETRY. These metrics are returned as conses of (X . Y). As with colors, | |
| 1102 either car or cdr of the cons may be nil if the system does not provide one | |
| 1103 of the corresponding dimensions. | |
| 1104 | |
| 1105 size-cursor Mouse cursor size. | |
| 1106 size-scrollbar Scrollbars (WIDTH . HEIGHT) | |
| 1107 size-menu Menubar height, as (nil . HEIGHT) | |
| 1108 size-toolbar Toolbar width and height. | |
| 1109 size-toolbar-button Toolbar button size. | |
| 1110 size-toolbar-border Toolbar border width and height. | |
| 1111 size-icon Icon dimensions. | |
| 1112 size-icon-small Small icon dimensions. | |
| 440 | 1113 size-device Device screen or paper size in pixels. |
| 1114 size-workspace Workspace size in pixels. This can be less than or | |
| 442 | 1115 equal to the above. For displays, this is the area |
| 1116 available to applications less window manager | |
| 440 | 1117 decorations. For printers, this is the size of |
| 1118 printable area. | |
| 1119 offset-workspace Offset of workspace area from the top left corner | |
| 442 | 1120 of screen or paper, in pixels. |
| 428 | 1121 size-device-mm Device screen size in millimeters. |
| 1122 device-dpi Device resolution, in dots per inch. | |
| 1123 num-bit-planes Integer, number of device bit planes. | |
| 1124 num-color-cells Integer, number of device color cells. | |
| 1942 | 1125 num-screens Integer, number of device screens. |
| 428 | 1126 |
| 1127 FEATURES. This group reports various device features. If a feature is | |
| 1128 present, integer 1 (one) is returned, if it is not present, then integer | |
| 1129 0 (zero) is returned. If the system is unaware of the feature, then | |
| 1130 DEFAULT is returned. | |
| 1131 | |
| 1132 mouse-buttons Integer, number of mouse buttons, or zero if no mouse. | |
| 1133 swap-buttons Non-zero if left and right mouse buttons are swapped. | |
| 1134 show-sounds User preference for visual over audible bell. | |
| 1135 slow-device Device is slow, avoid animation. | |
| 1136 security Non-zero if user environment is secure. | |
| 1137 */ | |
| 1138 (device, metric, default_)) | |
| 1139 { | |
| 1140 struct device *d = decode_device (device); | |
| 1141 enum device_metrics m; | |
| 1142 Lisp_Object res; | |
| 1143 | |
| 1144 /* Decode metric */ | |
| 1145 #define FROB(met) \ | |
| 1146 else if (EQ (metric, Q##met)) \ | |
| 1147 m = DM_##met | |
| 1148 | |
| 1149 if (0) | |
| 1150 ; | |
| 1151 FROB (color_default); | |
| 1152 FROB (color_select); | |
| 1153 FROB (color_balloon); | |
| 1154 FROB (color_3d_face); | |
| 1155 FROB (color_3d_light); | |
| 1156 FROB (color_3d_dark); | |
| 1157 FROB (color_menu); | |
| 1158 FROB (color_menu_highlight); | |
| 1159 FROB (color_menu_button); | |
| 1160 FROB (color_menu_disabled); | |
| 1161 FROB (color_toolbar); | |
| 1162 FROB (color_scrollbar); | |
| 1163 FROB (color_desktop); | |
| 1164 FROB (color_workspace); | |
| 1165 FROB (font_default); | |
| 1166 FROB (font_menubar); | |
| 1167 FROB (font_dialog); | |
| 1168 FROB (size_cursor); | |
| 1169 FROB (size_scrollbar); | |
| 1170 FROB (size_menu); | |
| 1171 FROB (size_toolbar); | |
| 1172 FROB (size_toolbar_button); | |
| 1173 FROB (size_toolbar_border); | |
| 1174 FROB (size_icon); | |
| 1175 FROB (size_icon_small); | |
| 1176 FROB (size_device); | |
| 1177 FROB (size_workspace); | |
| 440 | 1178 FROB (offset_workspace); |
| 428 | 1179 FROB (size_device_mm); |
| 1180 FROB (device_dpi); | |
| 1181 FROB (num_bit_planes); | |
| 1182 FROB (num_color_cells); | |
| 1942 | 1183 FROB (num_screens); |
| 428 | 1184 FROB (mouse_buttons); |
| 1185 FROB (swap_buttons); | |
| 1186 FROB (show_sounds); | |
| 1187 FROB (slow_device); | |
| 1188 FROB (security); | |
| 1942 | 1189 FROB (backing_store); |
| 1190 FROB (save_under); | |
| 428 | 1191 else |
| 563 | 1192 invalid_constant ("Invalid device metric symbol", metric); |
| 428 | 1193 |
| 1194 res = DEVMETH_OR_GIVEN (d, device_system_metrics, (d, m), Qunbound); | |
| 1195 return UNBOUNDP(res) ? default_ : res; | |
| 1196 | |
| 1197 #undef FROB | |
| 1198 } | |
| 1199 | |
| 1200 DEFUN ("device-system-metrics", Fdevice_system_metrics, 0, 1, 0, /* | |
| 1201 Get a property list of device metric for DEVICE. | |
| 1202 | |
| 1203 See `device-system-metric' for the description of available metrics. | |
| 1204 DEVICE defaults to selected device when omitted. | |
| 1205 */ | |
| 1206 (device)) | |
| 1207 { | |
| 1208 struct device *d = decode_device (device); | |
| 1209 Lisp_Object plist = Qnil, one_metric; | |
| 1210 | |
| 1211 #define FROB(m) \ | |
| 1212 if (!UNBOUNDP ((one_metric = \ | |
| 1213 DEVMETH_OR_GIVEN (d, device_system_metrics, \ | |
| 1214 (d, DM_##m), Qunbound)))) \ | |
| 1215 plist = Fcons (Q##m, Fcons (one_metric, plist)); | |
| 1216 | |
| 1217 FROB (color_default); | |
| 1218 FROB (color_select); | |
| 1219 FROB (color_balloon); | |
| 1220 FROB (color_3d_face); | |
| 1221 FROB (color_3d_light); | |
| 1222 FROB (color_3d_dark); | |
| 1223 FROB (color_menu); | |
| 1224 FROB (color_menu_highlight); | |
| 1225 FROB (color_menu_button); | |
| 1226 FROB (color_menu_disabled); | |
| 1227 FROB (color_toolbar); | |
| 1228 FROB (color_scrollbar); | |
| 1229 FROB (color_desktop); | |
| 1230 FROB (color_workspace); | |
| 1231 FROB (font_default); | |
| 1232 FROB (font_menubar); | |
| 1233 FROB (font_dialog); | |
| 1234 FROB (size_cursor); | |
| 1235 FROB (size_scrollbar); | |
| 1236 FROB (size_menu); | |
| 1237 FROB (size_toolbar); | |
| 1238 FROB (size_toolbar_button); | |
| 1239 FROB (size_toolbar_border); | |
| 1240 FROB (size_icon); | |
| 1241 FROB (size_icon_small); | |
| 1242 FROB (size_device); | |
| 1243 FROB (size_workspace); | |
| 440 | 1244 FROB (offset_workspace); |
| 428 | 1245 FROB (size_device_mm); |
| 1246 FROB (device_dpi); | |
| 1247 FROB (num_bit_planes); | |
| 1248 FROB (num_color_cells); | |
| 1942 | 1249 FROB (num_screens); |
| 428 | 1250 FROB (mouse_buttons); |
| 1251 FROB (swap_buttons); | |
| 1252 FROB (show_sounds); | |
| 1253 FROB (slow_device); | |
| 1254 FROB (security); | |
| 1942 | 1255 FROB (backing_store); |
| 1256 FROB (save_under); | |
| 428 | 1257 |
| 1258 return plist; | |
| 1259 | |
| 1260 #undef FROB | |
| 1261 } | |
| 1262 | |
| 1263 Lisp_Object | |
| 1264 domain_device_type (Lisp_Object domain) | |
| 1265 { | |
| 1266 /* This cannot GC */ | |
| 1267 assert (WINDOWP (domain) || FRAMEP (domain) | |
| 1268 || DEVICEP (domain) || CONSOLEP (domain)); | |
| 1269 | |
| 1270 if (WINDOWP (domain)) | |
| 1271 { | |
| 1272 if (!WINDOW_LIVE_P (XWINDOW (domain))) | |
| 1273 return Qdead; | |
| 1274 domain = WINDOW_FRAME (XWINDOW (domain)); | |
| 1275 } | |
| 1276 if (FRAMEP (domain)) | |
| 1277 { | |
| 1278 if (!FRAME_LIVE_P (XFRAME (domain))) | |
| 1279 return Qdead; | |
| 1280 domain = FRAME_DEVICE (XFRAME (domain)); | |
| 1281 } | |
| 1282 if (DEVICEP (domain)) | |
| 1283 { | |
| 1284 if (!DEVICE_LIVE_P (XDEVICE (domain))) | |
| 1285 return Qdead; | |
| 1286 domain = DEVICE_CONSOLE (XDEVICE (domain)); | |
| 1287 } | |
| 1288 return CONSOLE_TYPE (XCONSOLE (domain)); | |
| 1289 } | |
| 1290 | |
| 1291 /* | |
| 1292 * Determine whether window system bases window geometry on character | |
| 1293 * or pixel counts. | |
| 1294 * Return non-zero for pixel-based geometry, zero for character-based. | |
| 1295 */ | |
| 1296 int | |
| 1297 window_system_pixelated_geometry (Lisp_Object domain) | |
| 1298 { | |
| 1299 /* This cannot GC */ | |
| 1300 Lisp_Object winsy = domain_device_type (domain); | |
| 1301 struct console_methods *meth = decode_console_type (winsy, ERROR_ME_NOT); | |
| 1302 assert (meth); | |
| 545 | 1303 return CONMETH_IMPL_FLAG (meth, XDEVIMPF_PIXEL_GEOMETRY); |
| 428 | 1304 } |
| 1305 | |
| 1306 DEFUN ("domain-device-type", Fdomain_device_type, 0, 1, 0, /* | |
| 3025 | 1307 Return the device type symbol for a DOMAIN, e.g. `x' or `tty'. |
| 428 | 1308 DOMAIN can be either a window, frame, device or console. |
| 1309 */ | |
| 1310 (domain)) | |
| 1311 { | |
| 1312 if (!WINDOWP (domain) && !FRAMEP (domain) | |
| 1313 && !DEVICEP (domain) && !CONSOLEP (domain)) | |
| 563 | 1314 invalid_argument |
| 428 | 1315 ("Domain must be either a window, frame, device or console", domain); |
| 1316 | |
| 1317 return domain_device_type (domain); | |
| 1318 } | |
| 1319 | |
| 1320 void | |
| 1321 handle_asynch_device_change (void) | |
| 1322 { | |
| 1323 int i; | |
| 1324 int old_asynch_device_change_pending = asynch_device_change_pending; | |
| 1325 for (i = 0; i < Dynarr_length (the_console_type_entry_dynarr); i++) | |
| 1326 { | |
| 1327 if (Dynarr_at (the_console_type_entry_dynarr, i).meths-> | |
| 1328 asynch_device_change_method) | |
| 1329 (Dynarr_at (the_console_type_entry_dynarr, i).meths-> | |
| 1330 asynch_device_change_method) (); | |
| 1331 } | |
| 1332 /* reset the flag to 0 unless another notification occurred while | |
| 1333 we were processing this one. Block SIGWINCH during this | |
| 1334 check to prevent a possible race condition. */ | |
| 442 | 1335 #ifdef SIGWINCH |
| 428 | 1336 EMACS_BLOCK_SIGNAL (SIGWINCH); |
| 1337 #endif | |
| 1338 if (old_asynch_device_change_pending == asynch_device_change_pending) | |
| 1339 asynch_device_change_pending = 0; | |
| 442 | 1340 #ifdef SIGWINCH |
| 428 | 1341 EMACS_UNBLOCK_SIGNAL (SIGWINCH); |
| 1342 #endif | |
| 1343 } | |
| 1344 | |
| 771 | 1345 static Lisp_Object |
| 1346 unlock_device (Lisp_Object d) | |
| 1347 { | |
| 1348 UNLOCK_DEVICE (XDEVICE (d)); | |
| 1349 return Qnil; | |
| 1350 } | |
| 1351 | |
| 872 | 1352 Lisp_Object |
| 428 | 1353 call_critical_lisp_code (struct device *d, Lisp_Object function, |
| 1354 Lisp_Object object) | |
| 1355 { | |
| 853 | 1356 /* This function cannot GC */ |
| 771 | 1357 int count = begin_gc_forbidden (); |
| 853 | 1358 struct gcpro gcpro1; |
| 1359 Lisp_Object args[3]; | |
| 872 | 1360 Lisp_Object retval; |
| 853 | 1361 |
| 771 | 1362 specbind (Qinhibit_quit, Qt); |
| 1363 record_unwind_protect (unlock_device, wrap_device (d)); | |
| 428 | 1364 |
| 771 | 1365 /* [[There's no real reason to bother doing unwind-protects, because if |
| 428 | 1366 initialize-*-faces signals an error, emacs is going to crash |
| 771 | 1367 immediately.]] But this sucks! This code is called not only during |
| 1368 the initial device, but for other devices as well! #### When dealing | |
| 1369 with non-initial devices, we should signal an error but NOT kill | |
| 1370 ourselves! --ben | |
| 428 | 1371 */ |
| 1372 LOCK_DEVICE (d); | |
| 1373 | |
| 853 | 1374 args[0] = Qreally_early_error_handler; |
| 1375 args[1] = function; | |
| 1376 args[2] = object; | |
| 1377 | |
| 1378 GCPRO1_ARRAY (args, 3); | |
| 1379 | |
| 1380 /* It's useful to have an error handler; otherwise an infinite | |
| 428 | 1381 loop may result. */ |
| 872 | 1382 retval = Fcall_with_condition_handler (!NILP (object) ? 3 : 2, args); |
| 853 | 1383 |
| 1384 UNGCPRO; | |
| 428 | 1385 |
| 872 | 1386 return unbind_to_1 (count, retval); |
| 428 | 1387 } |
| 1388 | |
| 1389 | |
| 1390 /************************************************************************/ | |
| 1391 /* initialization */ | |
| 1392 /************************************************************************/ | |
| 1393 | |
| 1394 void | |
| 1395 syms_of_device (void) | |
| 1396 { | |
|
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1397 INIT_LISP_OBJECT (device); |
| 442 | 1398 |
| 428 | 1399 DEFSUBR (Fvalid_device_class_p); |
| 1400 DEFSUBR (Fdevice_class_list); | |
| 1401 | |
| 1402 DEFSUBR (Fdfw_device); | |
| 1403 DEFSUBR (Fselected_device); | |
| 1404 DEFSUBR (Fselect_device); | |
| 1405 DEFSUBR (Fset_device_selected_frame); | |
| 1406 DEFSUBR (Fdevicep); | |
| 1407 DEFSUBR (Fdevice_live_p); | |
| 1408 DEFSUBR (Fdevice_name); | |
| 1409 DEFSUBR (Fdevice_connection); | |
| 1410 DEFSUBR (Fdevice_console); | |
| 1411 DEFSUBR (Ffind_device); | |
| 1412 DEFSUBR (Fget_device); | |
| 1413 DEFSUBR (Fmake_device); | |
| 872 | 1414 DEFSUBR (Fdefault_device); |
| 428 | 1415 DEFSUBR (Fdelete_device); |
| 1416 DEFSUBR (Fdevice_frame_list); | |
| 1417 DEFSUBR (Fdevice_class); | |
| 1418 DEFSUBR (Fset_device_class); | |
| 1419 DEFSUBR (Fdevice_system_metrics); | |
| 1420 DEFSUBR (Fdevice_system_metric); | |
| 1421 DEFSUBR (Fset_device_baud_rate); | |
| 1422 DEFSUBR (Fdevice_baud_rate); | |
| 1423 DEFSUBR (Fdomain_device_type); | |
| 440 | 1424 DEFSUBR (Fdevice_printer_p); |
| 428 | 1425 |
| 563 | 1426 DEFSYMBOL (Qdevicep); |
| 1427 DEFSYMBOL (Qdevice_live_p); | |
| 428 | 1428 |
| 563 | 1429 DEFSYMBOL (Qcreate_device_hook); |
| 1430 DEFSYMBOL (Qdelete_device_hook); | |
| 428 | 1431 |
| 1432 /* Qcolor defined in general.c */ | |
| 563 | 1433 DEFSYMBOL (Qgrayscale); |
| 1434 DEFSYMBOL (Qmono); | |
| 428 | 1435 |
| 1436 /* Device metrics symbols */ | |
| 1942 | 1437 DEFSYMBOL (Qbacking_store); |
| 563 | 1438 DEFSYMBOL (Qcolor_default); |
| 1439 DEFSYMBOL (Qcolor_select); | |
| 1440 DEFSYMBOL (Qcolor_balloon); | |
| 1441 DEFSYMBOL (Qcolor_3d_face); | |
| 1442 DEFSYMBOL (Qcolor_3d_light); | |
| 1443 DEFSYMBOL (Qcolor_3d_dark); | |
| 1444 DEFSYMBOL (Qcolor_menu); | |
| 1445 DEFSYMBOL (Qcolor_menu_highlight); | |
| 1446 DEFSYMBOL (Qcolor_menu_button); | |
| 1447 DEFSYMBOL (Qcolor_menu_disabled); | |
| 1448 DEFSYMBOL (Qcolor_toolbar); | |
| 1449 DEFSYMBOL (Qcolor_scrollbar); | |
| 1450 DEFSYMBOL (Qcolor_desktop); | |
| 1451 DEFSYMBOL (Qcolor_workspace); | |
| 1452 DEFSYMBOL (Qfont_default); | |
| 1453 DEFSYMBOL (Qfont_menubar); | |
| 1454 DEFSYMBOL (Qfont_dialog); | |
| 1455 DEFSYMBOL (Qsize_cursor); | |
| 1456 DEFSYMBOL (Qsize_scrollbar); | |
| 1457 DEFSYMBOL (Qsize_menu); | |
| 1458 DEFSYMBOL (Qsize_toolbar); | |
| 1459 DEFSYMBOL (Qsize_toolbar_button); | |
| 1460 DEFSYMBOL (Qsize_toolbar_border); | |
| 1461 DEFSYMBOL (Qsize_icon); | |
| 1462 DEFSYMBOL (Qsize_icon_small); | |
| 1463 DEFSYMBOL (Qsize_device); | |
| 1464 DEFSYMBOL (Qsize_workspace); | |
| 1465 DEFSYMBOL (Qoffset_workspace); | |
| 1466 DEFSYMBOL (Qsize_device_mm); | |
| 1467 DEFSYMBOL (Qnum_bit_planes); | |
| 1468 DEFSYMBOL (Qnum_color_cells); | |
| 1942 | 1469 DEFSYMBOL (Qnum_screens); |
| 563 | 1470 DEFSYMBOL (Qdevice_dpi); |
| 1471 DEFSYMBOL (Qmouse_buttons); | |
| 1942 | 1472 DEFSYMBOL (Qsave_under); |
| 563 | 1473 DEFSYMBOL (Qswap_buttons); |
| 1474 DEFSYMBOL (Qshow_sounds); | |
| 1475 DEFSYMBOL (Qslow_device); | |
| 1476 DEFSYMBOL (Qsecurity); | |
| 428 | 1477 } |
| 1478 | |
| 1479 void | |
| 1480 reinit_vars_of_device (void) | |
| 1481 { | |
| 1482 staticpro_nodump (&Vdefault_device); | |
| 1483 Vdefault_device = Qnil; | |
| 1484 asynch_device_change_pending = 0; | |
| 1485 } | |
| 1486 | |
| 1487 void | |
| 1488 vars_of_device (void) | |
| 1489 { | |
| 1490 DEFVAR_LISP ("create-device-hook", &Vcreate_device_hook /* | |
| 1491 Function or functions to call when a device is created. | |
| 1492 One argument, the newly-created device. | |
| 1493 This is called after the first frame has been created, but before | |
| 1494 calling the `create-frame-hook'. | |
| 1495 Note that in general the device will not be selected. | |
| 1496 */ ); | |
| 1497 Vcreate_device_hook = Qnil; | |
| 1498 | |
| 1499 DEFVAR_LISP ("delete-device-hook", &Vdelete_device_hook /* | |
| 1500 Function or functions to call when a device is deleted. | |
| 1501 One argument, the to-be-deleted device. | |
| 1502 */ ); | |
| 1503 Vdelete_device_hook = Qnil; | |
| 1504 | |
| 872 | 1505 /* Plist of device types and their default devices. */ |
| 1506 Vdefault_device_plist = Qnil; | |
| 1507 staticpro (&Vdefault_device_plist); | |
| 1508 | |
| 428 | 1509 Vdevice_class_list = list3 (Qcolor, Qgrayscale, Qmono); |
| 1510 staticpro (&Vdevice_class_list); | |
| 1511 | |
| 1512 /* Death to devices.el !!! */ | |
| 617 | 1513 Fprovide (intern ("devices")); |
| 428 | 1514 } |