| File: | src/Event.c |
| Location: | line 318, column 6 |
| Description: | Value stored to 'pp' is never read |
| 1 | /*********************************************************** |
| 2 | Copyright (c) 1993, Oracle and/or its affiliates. All rights reserved. |
| 3 | |
| 4 | Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | copy of this software and associated documentation files (the "Software"), |
| 6 | to deal in the Software without restriction, including without limitation |
| 7 | the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | and/or sell copies of the Software, and to permit persons to whom the |
| 9 | Software is furnished to do so, subject to the following conditions: |
| 10 | |
| 11 | The above copyright notice and this permission notice (including the next |
| 12 | paragraph) shall be included in all copies or substantial portions of the |
| 13 | Software. |
| 14 | |
| 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 18 | THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 20 | FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 21 | DEALINGS IN THE SOFTWARE. |
| 22 | |
| 23 | Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts. |
| 24 | |
| 25 | All Rights Reserved |
| 26 | |
| 27 | Permission to use, copy, modify, and distribute this software and its |
| 28 | documentation for any purpose and without fee is hereby granted, |
| 29 | provided that the above copyright notice appear in all copies and that |
| 30 | both that copyright notice and this permission notice appear in |
| 31 | supporting documentation, and that the name of Digital not be |
| 32 | used in advertising or publicity pertaining to distribution of the |
| 33 | software without specific, written prior permission. |
| 34 | |
| 35 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING |
| 36 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL |
| 37 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR |
| 38 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
| 39 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, |
| 40 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS |
| 41 | SOFTWARE. |
| 42 | |
| 43 | ******************************************************************/ |
| 44 | |
| 45 | /* |
| 46 | |
| 47 | Copyright 1987, 1988, 1998 The Open Group |
| 48 | |
| 49 | Permission to use, copy, modify, distribute, and sell this software and its |
| 50 | documentation for any purpose is hereby granted without fee, provided that |
| 51 | the above copyright notice appear in all copies and that both that |
| 52 | copyright notice and this permission notice appear in supporting |
| 53 | documentation. |
| 54 | |
| 55 | The above copyright notice and this permission notice shall be included in |
| 56 | all copies or substantial portions of the Software. |
| 57 | |
| 58 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 59 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 60 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 61 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| 62 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 63 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 64 | |
| 65 | Except as contained in this notice, the name of The Open Group shall not be |
| 66 | used in advertising or otherwise to promote the sale, use or other dealings |
| 67 | in this Software without prior written authorization from The Open Group. |
| 68 | |
| 69 | */ |
| 70 | |
| 71 | #ifdef HAVE_CONFIG_H1 |
| 72 | #include <config.h> |
| 73 | #endif |
| 74 | #include "IntrinsicI.h" |
| 75 | #include "Shell.h" |
| 76 | #include "StringDefs.h" |
| 77 | |
| 78 | typedef struct _XtEventRecExt { |
| 79 | int type; |
| 80 | XtPointer select_data[1]; /* actual dimension is [mask] */ |
| 81 | } XtEventRecExt; |
| 82 | |
| 83 | #define EXT_TYPE(p)(((XtEventRecExt*) ((p)+1))->type) (((XtEventRecExt*) ((p)+1))->type) |
| 84 | #define EXT_SELECT_DATA(p,n)(((XtEventRecExt*) ((p)+1))->select_data[n]) (((XtEventRecExt*) ((p)+1))->select_data[n]) |
| 85 | |
| 86 | #define NonMaskableMask((EventMask)0x80000000L) ((EventMask)0x80000000L) |
| 87 | |
| 88 | /* |
| 89 | * These are definitions to make the code that handles exposure compresssion |
| 90 | * easier to read. |
| 91 | * |
| 92 | * COMP_EXPOSE - The compression exposure field of "widget" |
| 93 | * COMP_EXPOSE_TYPE - The type of compression (lower 4 bits of COMP_EXPOSE. |
| 94 | * GRAPHICS_EXPOSE - TRUE if the widget wants graphics expose events |
| 95 | * dispatched. |
| 96 | * NO_EXPOSE - TRUE if the widget wants No expose events dispatched. |
| 97 | */ |
| 98 | |
| 99 | #define COMP_EXPOSE(widget->core.widget_class->core_class.compress_exposure ) (widget->core.widget_class->core_class.compress_exposure) |
| 100 | #define COMP_EXPOSE_TYPE((widget->core.widget_class->core_class.compress_exposure ) & 0x0f) (COMP_EXPOSE(widget->core.widget_class->core_class.compress_exposure ) & 0x0f) |
| 101 | #define GRAPHICS_EXPOSE((0x10 & (widget->core.widget_class->core_class.compress_exposure )) || (0x20 & (widget->core.widget_class->core_class .compress_exposure))) ((XtExposeGraphicsExpose0x10 & COMP_EXPOSE(widget->core.widget_class->core_class.compress_exposure )) || \ |
| 102 | (XtExposeGraphicsExposeMerged0x20 & COMP_EXPOSE(widget->core.widget_class->core_class.compress_exposure ))) |
| 103 | #define NO_EXPOSE(0x40 & (widget->core.widget_class->core_class.compress_exposure )) (XtExposeNoExpose0x40 & COMP_EXPOSE(widget->core.widget_class->core_class.compress_exposure )) |
| 104 | |
| 105 | EventMask XtBuildEventMask( |
| 106 | Widget widget) |
| 107 | { |
| 108 | XtEventTable ev; |
| 109 | EventMask mask = 0L; |
| 110 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); |
| 111 | |
| 112 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 113 | for (ev = widget->core.event_table; ev != NULL((void*)0); ev = ev->next) |
| 114 | if (ev->select) { |
| 115 | if (!ev->has_type_specifier) |
| 116 | mask |= ev->mask; |
| 117 | else { |
| 118 | if (EXT_TYPE(ev)(((XtEventRecExt*) ((ev)+1))->type) < LASTEvent36) { |
| 119 | Cardinal i; |
| 120 | for (i = 0; i < ev->mask; i++) |
| 121 | if (EXT_SELECT_DATA(ev, i)(((XtEventRecExt*) ((ev)+1))->select_data[i])) |
| 122 | mask |= *(EventMask*)EXT_SELECT_DATA(ev, i)(((XtEventRecExt*) ((ev)+1))->select_data[i]); |
| 123 | } |
| 124 | } |
| 125 | } |
| 126 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 127 | if (widget->core.widget_class->core_class.expose != NULL((void*)0)) |
| 128 | mask |= ExposureMask(1L<<15); |
| 129 | if (widget->core.widget_class->core_class.visible_interest) |
| 130 | mask |= VisibilityChangeMask(1L<<16); |
| 131 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 132 | if (widget->core.tm.translations) |
| 133 | mask |= widget->core.tm.translations->eventMask; |
| 134 | |
| 135 | mask = mask & ~NonMaskableMask((EventMask)0x80000000L); |
| 136 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 137 | return mask; |
| 138 | } |
| 139 | |
| 140 | static void CallExtensionSelector( |
| 141 | Widget widget, |
| 142 | ExtSelectRec* rec, |
| 143 | Boolean forceCall) |
| 144 | { |
| 145 | XtEventRec* p; |
| 146 | XtPointer* data; |
| 147 | int* types; |
| 148 | Cardinal i, count = 0; |
| 149 | |
| 150 | for (p = widget->core.event_table; p != NULL((void*)0); p = p->next) |
| 151 | if (p->has_type_specifier && |
| 152 | EXT_TYPE(p)(((XtEventRecExt*) ((p)+1))->type) >= rec->min && EXT_TYPE(p)(((XtEventRecExt*) ((p)+1))->type) <= rec->max) |
| 153 | count += p->mask; |
| 154 | |
| 155 | if (count == 0 && !forceCall) return; |
| 156 | |
| 157 | data = (XtPointer *) ALLOCATE_LOCAL(count * sizeof (XtPointer))__builtin_alloca((int)(count * sizeof (XtPointer))); |
| 158 | types = (int *) ALLOCATE_LOCAL(count * sizeof (int))__builtin_alloca((int)(count * sizeof (int))); |
| 159 | count = 0; |
| 160 | |
| 161 | for (p = widget->core.event_table; p != NULL((void*)0); p = p->next) |
| 162 | if (p->has_type_specifier && |
| 163 | EXT_TYPE(p)(((XtEventRecExt*) ((p)+1))->type) >= rec->min && EXT_TYPE(p)(((XtEventRecExt*) ((p)+1))->type) <= rec->max) |
| 164 | for (i =0; i < p->mask; i++) { |
| 165 | types[count] = EXT_TYPE(p)(((XtEventRecExt*) ((p)+1))->type); |
| 166 | data[count++] = EXT_SELECT_DATA(p, i)(((XtEventRecExt*) ((p)+1))->select_data[i]); |
| 167 | } |
| 168 | |
| 169 | (*rec->proc)(widget, types, data, count, rec->client_data); |
| 170 | DEALLOCATE_LOCAL((char*) types)do {} while(0); |
| 171 | DEALLOCATE_LOCAL((char*) data)do {} while(0); |
| 172 | } |
| 173 | |
| 174 | static void |
| 175 | RemoveEventHandler( |
| 176 | Widget widget, |
| 177 | XtPointer select_data, |
| 178 | int type, |
| 179 | Boolean has_type_specifier, |
| 180 | Boolean other, |
| 181 | XtEventHandler proc, |
| 182 | XtPointer closure, |
| 183 | Boolean raw) |
| 184 | { |
| 185 | XtEventRec *p, **pp; |
| 186 | EventMask eventMask, oldMask = XtBuildEventMask(widget); |
| 187 | |
| 188 | if (raw) raw = 1; |
| 189 | pp = &widget->core.event_table; |
| 190 | while ((p = *pp) && |
| 191 | (p->proc != proc || p->closure != closure || p->select == raw || |
| 192 | has_type_specifier != p->has_type_specifier || |
| 193 | (has_type_specifier && EXT_TYPE(p)(((XtEventRecExt*) ((p)+1))->type) != type))) |
| 194 | pp = &p->next; |
| 195 | if (!p) return; |
| 196 | |
| 197 | /* un-register it */ |
| 198 | if (!has_type_specifier) { |
| 199 | eventMask = *(EventMask*)select_data; |
| 200 | eventMask &= ~NonMaskableMask((EventMask)0x80000000L); |
| 201 | if (other) |
| 202 | eventMask |= NonMaskableMask((EventMask)0x80000000L); |
| 203 | p->mask &= ~eventMask; |
| 204 | } else { |
| 205 | Cardinal i; |
| 206 | /* p->mask specifies count of EXT_SELECT_DATA(p,i) |
| 207 | * search through the list of selection data, if not found |
| 208 | * dont remove this handler |
| 209 | */ |
| 210 | for (i = 0; i < p->mask && select_data != EXT_SELECT_DATA(p,i)(((XtEventRecExt*) ((p)+1))->select_data[i]);) i++; |
| 211 | if (i == p->mask) return; |
| 212 | if (p->mask == 1) p->mask = 0; |
| 213 | else { |
| 214 | p->mask--; |
| 215 | while (i < p->mask) { |
| 216 | EXT_SELECT_DATA(p,i)(((XtEventRecExt*) ((p)+1))->select_data[i]) = EXT_SELECT_DATA(p, i+1)(((XtEventRecExt*) ((p)+1))->select_data[i+1]); |
| 217 | i++; |
| 218 | } |
| 219 | } |
| 220 | } |
| 221 | |
| 222 | if (!p->mask) { /* delete it entirely */ |
| 223 | *pp = p->next; |
| 224 | XtFree((char *)p); |
| 225 | } |
| 226 | |
| 227 | /* Reset select mask if realized and not raw. */ |
| 228 | if ( !raw && XtIsRealized(widget)((((((Object)(widget))->object.widget_class->core_class .class_inited & 0x04) ? (widget) : _XtWindowedAncestor(widget )) ->core.window) != 0L) && !widget->core.being_destroyed) { |
| 229 | EventMask mask = XtBuildEventMask(widget); |
| 230 | Display* dpy = XtDisplay (widget)(((widget)->core.screen)->display); |
| 231 | |
| 232 | if (oldMask != mask) |
| 233 | XSelectInput(dpy, XtWindow(widget)((widget)->core.window), mask); |
| 234 | |
| 235 | if (has_type_specifier) { |
| 236 | XtPerDisplay pd = _XtGetPerDisplay(dpy); |
| 237 | int i; |
| 238 | for (i = 0; i < pd->ext_select_count; i++) { |
| 239 | if (type >= pd->ext_select_list[i].min && |
| 240 | type <= pd->ext_select_list[i].max) { |
| 241 | CallExtensionSelector(widget, pd->ext_select_list+i, TRUE1); |
| 242 | break; |
| 243 | } |
| 244 | if (type < pd->ext_select_list[i].min) break; |
| 245 | } |
| 246 | } |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | /* Function Name: AddEventHandler |
| 251 | * Description: An Internal routine that does the actual work of |
| 252 | * adding the event handlers. |
| 253 | * Arguments: widget - widget to register an event handler for. |
| 254 | * eventMask - events to mask for. |
| 255 | * other - pass non maskable events to this proceedure. |
| 256 | * proc - proceedure to register. |
| 257 | * closure - data to pass to the event hander. |
| 258 | * position - where to add this event handler. |
| 259 | * force_new_position - If the element is already in the |
| 260 | * list, this will force it to the |
| 261 | * beginning or end depending on position. |
| 262 | * raw - If FALSE call XSelectInput for events in mask. |
| 263 | * Returns: none |
| 264 | */ |
| 265 | |
| 266 | static void |
| 267 | AddEventHandler( |
| 268 | Widget widget, |
| 269 | XtPointer select_data, |
| 270 | int type, |
| 271 | Boolean has_type_specifier, |
| 272 | Boolean other, |
| 273 | XtEventHandler proc, |
| 274 | XtPointer closure, |
| 275 | XtListPosition position, |
| 276 | Boolean force_new_position, |
| 277 | Boolean raw) |
| 278 | { |
| 279 | register XtEventRec *p, **pp; |
| 280 | EventMask oldMask = 0, eventMask = 0; |
| 281 | |
| 282 | if (!has_type_specifier) { |
| 283 | eventMask = *(EventMask*)select_data & ~NonMaskableMask((EventMask)0x80000000L); |
| 284 | if (other) eventMask |= NonMaskableMask((EventMask)0x80000000L); |
| 285 | if (!eventMask) return; |
| 286 | } else if (!type) return; |
| 287 | |
| 288 | if (XtIsRealized(widget)((((((Object)(widget))->object.widget_class->core_class .class_inited & 0x04) ? (widget) : _XtWindowedAncestor(widget )) ->core.window) != 0L) && !raw) oldMask = XtBuildEventMask(widget); |
| 289 | |
| 290 | if (raw) raw = 1; |
| 291 | pp = &widget->core.event_table; |
| 292 | while ((p = *pp) && |
| 293 | (p->proc != proc || p->closure != closure || p->select == raw || |
| 294 | has_type_specifier != p->has_type_specifier || |
| 295 | (has_type_specifier && EXT_TYPE(p)(((XtEventRecExt*) ((p)+1))->type) != type))) |
| 296 | pp = &p->next; |
| 297 | |
| 298 | if (!p) { /* New proc to add to list */ |
| 299 | if (has_type_specifier) { |
| 300 | p = (XtEventRec*) __XtMalloc(sizeof(XtEventRec) + |
| 301 | sizeof(XtEventRecExt)); |
| 302 | EXT_TYPE(p)(((XtEventRecExt*) ((p)+1))->type) = type; |
| 303 | EXT_SELECT_DATA(p,0)(((XtEventRecExt*) ((p)+1))->select_data[0]) = select_data; |
| 304 | p->mask = 1; |
| 305 | p->has_type_specifier = True1; |
| 306 | } else { |
| 307 | p = (XtEventRec*) __XtMalloc(sizeof(XtEventRec)); |
| 308 | p->mask = eventMask; |
| 309 | p->has_type_specifier = False0; |
| 310 | } |
| 311 | p->proc = proc; |
| 312 | p->closure = closure; |
| 313 | p->select = ! raw; |
| 314 | |
| 315 | if (position == XtListHead) { |
| 316 | p->next = widget->core.event_table; |
| 317 | widget->core.event_table = p; |
| 318 | pp = &widget->core.event_table; |
Value stored to 'pp' is never read | |
| 319 | } else { |
| 320 | *pp = p; |
| 321 | p->next = NULL((void*)0); |
| 322 | } |
| 323 | } |
| 324 | else { |
| 325 | if (force_new_position) { |
| 326 | *pp = p->next; |
| 327 | |
| 328 | if (position == XtListHead) { |
| 329 | p->next = widget->core.event_table; |
| 330 | widget->core.event_table = p; |
| 331 | } else { |
| 332 | /* |
| 333 | * Find the last element in the list. |
| 334 | */ |
| 335 | while (*pp) |
| 336 | pp = &(*pp)->next; |
| 337 | *pp = p; |
| 338 | p->next = NULL((void*)0); |
| 339 | } |
| 340 | } |
| 341 | |
| 342 | if (!has_type_specifier) |
| 343 | p->mask |= eventMask; |
| 344 | else { |
| 345 | Cardinal i; |
| 346 | /* p->mask specifies count of EXT_SELECT_DATA(p,i) */ |
| 347 | for (i = 0; i < p->mask && select_data != EXT_SELECT_DATA(p,i)(((XtEventRecExt*) ((p)+1))->select_data[i]); ) |
| 348 | i++; |
| 349 | if (i == p->mask) { |
| 350 | p = (XtEventRec*) XtRealloc((char*)p, |
| 351 | sizeof(XtEventRec) + |
| 352 | sizeof(XtEventRecExt) + |
| 353 | p->mask * sizeof(XtPointer)); |
| 354 | EXT_SELECT_DATA(p,i)(((XtEventRecExt*) ((p)+1))->select_data[i]) = select_data; |
| 355 | p->mask++; |
| 356 | *pp = p; |
| 357 | } |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | if (XtIsRealized(widget)((((((Object)(widget))->object.widget_class->core_class .class_inited & 0x04) ? (widget) : _XtWindowedAncestor(widget )) ->core.window) != 0L) && !raw) { |
| 362 | EventMask mask = XtBuildEventMask(widget); |
| 363 | Display* dpy = XtDisplay (widget)(((widget)->core.screen)->display); |
| 364 | |
| 365 | if (oldMask != mask) |
| 366 | XSelectInput(dpy, XtWindow(widget)((widget)->core.window), mask); |
| 367 | |
| 368 | if (has_type_specifier) { |
| 369 | XtPerDisplay pd = _XtGetPerDisplay (dpy); |
| 370 | int i; |
| 371 | for (i = 0; i < pd->ext_select_count; i++) { |
| 372 | if (type >= pd->ext_select_list[i].min && |
| 373 | type <= pd->ext_select_list[i].max) { |
| 374 | CallExtensionSelector(widget, pd->ext_select_list+i, FALSE0); |
| 375 | break; |
| 376 | } |
| 377 | if (type < pd->ext_select_list[i].min) break; |
| 378 | } |
| 379 | } |
| 380 | } |
| 381 | } |
| 382 | |
| 383 | void XtRemoveEventHandler( |
| 384 | Widget widget, |
| 385 | EventMask eventMask, |
| 386 | _XtBooleanint other, |
| 387 | XtEventHandler proc, |
| 388 | XtPointer closure) |
| 389 | { |
| 390 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); |
| 391 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 392 | RemoveEventHandler(widget, (XtPointer) &eventMask, 0, FALSE0, |
| 393 | other, proc, closure, FALSE0); |
| 394 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 395 | } |
| 396 | |
| 397 | void XtAddEventHandler( |
| 398 | Widget widget, |
| 399 | EventMask eventMask, |
| 400 | _XtBooleanint other, |
| 401 | XtEventHandler proc, |
| 402 | XtPointer closure) |
| 403 | { |
| 404 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); |
| 405 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 406 | AddEventHandler(widget, (XtPointer) &eventMask, 0, FALSE0, other, |
| 407 | proc, closure, XtListTail, FALSE0, FALSE0); |
| 408 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 409 | } |
| 410 | |
| 411 | void XtInsertEventHandler( |
| 412 | Widget widget, |
| 413 | EventMask eventMask, |
| 414 | _XtBooleanint other, |
| 415 | XtEventHandler proc, |
| 416 | XtPointer closure, |
| 417 | XtListPosition position) |
| 418 | { |
| 419 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); |
| 420 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 421 | AddEventHandler(widget, (XtPointer) &eventMask, 0, FALSE0, other, |
| 422 | proc, closure, position, TRUE1, FALSE0); |
| 423 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 424 | } |
| 425 | |
| 426 | void XtRemoveRawEventHandler( |
| 427 | Widget widget, |
| 428 | EventMask eventMask, |
| 429 | _XtBooleanint other, |
| 430 | XtEventHandler proc, |
| 431 | XtPointer closure) |
| 432 | { |
| 433 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); |
| 434 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 435 | RemoveEventHandler(widget, (XtPointer) &eventMask, 0, FALSE0, |
| 436 | other, proc, closure, TRUE1); |
| 437 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 438 | } |
| 439 | |
| 440 | void XtInsertRawEventHandler( |
| 441 | Widget widget, |
| 442 | EventMask eventMask, |
| 443 | _XtBooleanint other, |
| 444 | XtEventHandler proc, |
| 445 | XtPointer closure, |
| 446 | XtListPosition position) |
| 447 | { |
| 448 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); |
| 449 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 450 | AddEventHandler(widget, (XtPointer) &eventMask, 0, FALSE0, other, |
| 451 | proc, closure, position, TRUE1, TRUE1); |
| 452 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 453 | } |
| 454 | |
| 455 | void XtAddRawEventHandler( |
| 456 | Widget widget, |
| 457 | EventMask eventMask, |
| 458 | _XtBooleanint other, |
| 459 | XtEventHandler proc, |
| 460 | XtPointer closure) |
| 461 | { |
| 462 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); |
| 463 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 464 | AddEventHandler(widget, (XtPointer) &eventMask, 0, FALSE0, other, |
| 465 | proc, closure, XtListTail, FALSE0, TRUE1); |
| 466 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 467 | } |
| 468 | |
| 469 | void XtRemoveEventTypeHandler( |
| 470 | Widget widget, |
| 471 | int type, |
| 472 | XtPointer select_data, |
| 473 | XtEventHandler proc, |
| 474 | XtPointer closure) |
| 475 | { |
| 476 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); |
| 477 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 478 | RemoveEventHandler(widget, select_data, type, TRUE1, |
| 479 | FALSE0, proc, closure, FALSE0); |
| 480 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 481 | } |
| 482 | |
| 483 | void XtInsertEventTypeHandler( |
| 484 | Widget widget, |
| 485 | int type, |
| 486 | XtPointer select_data, |
| 487 | XtEventHandler proc, |
| 488 | XtPointer closure, |
| 489 | XtListPosition position) |
| 490 | { |
| 491 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); |
| 492 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 493 | AddEventHandler(widget, select_data, type, TRUE1, FALSE0, |
| 494 | proc, closure, position, TRUE1, FALSE0); |
| 495 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 496 | } |
| 497 | |
| 498 | typedef struct _WWPair { |
| 499 | struct _WWPair *next; |
| 500 | Window window; |
| 501 | Widget widget; |
| 502 | } *WWPair; |
| 503 | |
| 504 | typedef struct _WWTable { |
| 505 | unsigned int mask; /* size of hash table - 1 */ |
| 506 | unsigned int rehash; /* mask - 2 */ |
| 507 | unsigned int occupied; /* number of occupied entries */ |
| 508 | unsigned int fakes; /* number occupied by WWfake */ |
| 509 | Widget *entries; /* the entries */ |
| 510 | WWPair pairs; /* bogus entries */ |
| 511 | } *WWTable; |
| 512 | |
| 513 | static const WidgetRec WWfake; /* placeholder for deletions */ |
| 514 | |
| 515 | #define WWHASH(tab,win)((win) & tab->mask) ((win) & tab->mask) |
| 516 | #define WWREHASHVAL(tab,win)((((win) % tab->rehash) + 2) | 1) ((((win) % tab->rehash) + 2) | 1) |
| 517 | #define WWREHASH(tab,idx,rehash)((idx + rehash) & tab->mask) ((idx + rehash) & tab->mask) |
| 518 | #define WWTABLE(display)(_XtGetPerDisplay(display)->WWtable) (_XtGetPerDisplay(display)->WWtable) |
| 519 | |
| 520 | static void ExpandWWTable(WWTable); |
| 521 | |
| 522 | void XtRegisterDrawable( |
| 523 | Display* display, |
| 524 | Drawable drawable, |
| 525 | Widget widget) |
| 526 | { |
| 527 | WWTable tab; |
| 528 | int idx, rehash; |
| 529 | Widget entry; |
| 530 | Window window = (Window) drawable; |
| 531 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); |
| 532 | |
| 533 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 534 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 535 | tab = WWTABLE(display)(_XtGetPerDisplay(display)->WWtable); |
| 536 | if (window != XtWindow(widget)((widget)->core.window)) { |
| 537 | WWPair pair; |
| 538 | pair = XtNew(struct _WWPair)((struct _WWPair *) XtMalloc((unsigned) sizeof(struct _WWPair ))); |
| 539 | pair->next = tab->pairs; |
| 540 | pair->window = window; |
| 541 | pair->widget = widget; |
| 542 | tab->pairs = pair; |
| 543 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 544 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 545 | return; |
| 546 | } |
| 547 | if ((tab->occupied + (tab->occupied >> 2)) > tab->mask) |
| 548 | ExpandWWTable(tab); |
| 549 | |
| 550 | idx = WWHASH(tab, window)((window) & tab->mask); |
| 551 | if ((entry = tab->entries[idx]) && entry != &WWfake) { |
| 552 | rehash = WWREHASHVAL(tab, window)((((window) % tab->rehash) + 2) | 1); |
| 553 | do { |
| 554 | idx = WWREHASH(tab, idx, rehash)((idx + rehash) & tab->mask); |
| 555 | } while ((entry = tab->entries[idx]) && entry != &WWfake); |
| 556 | } |
| 557 | if (!entry) |
| 558 | tab->occupied++; |
| 559 | else if (entry == &WWfake) |
| 560 | tab->fakes--; |
| 561 | tab->entries[idx] = widget; |
| 562 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 563 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 564 | } |
| 565 | |
| 566 | void XtUnregisterDrawable( |
| 567 | Display* display, |
| 568 | Drawable drawable) |
| 569 | { |
| 570 | WWTable tab; |
| 571 | int idx, rehash; |
| 572 | Widget entry; |
| 573 | Window window = (Window) drawable; |
| 574 | Widget widget = XtWindowToWidget (display, window); |
| 575 | DPY_TO_APPCON(display)XtAppContext app = (_XtProcessLock ? XtDisplayToApplicationContext (display): ((void*)0)); |
| 576 | |
| 577 | if (widget == NULL((void*)0)) return; |
| 578 | |
| 579 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 580 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 581 | tab = WWTABLE(display)(_XtGetPerDisplay(display)->WWtable); |
| 582 | if (window != XtWindow(widget)((widget)->core.window)) { |
| 583 | WWPair *prev, pair; |
| 584 | |
| 585 | prev = &tab->pairs; |
| 586 | while ((pair = *prev) && pair->window != window) |
| 587 | prev = &pair->next; |
| 588 | if (pair) { |
| 589 | *prev = pair->next; |
| 590 | XtFree((char *)pair); |
| 591 | } |
| 592 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 593 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 594 | return; |
| 595 | } |
| 596 | idx = WWHASH(tab, window)((window) & tab->mask); |
| 597 | if ((entry = tab->entries[idx])) { |
| 598 | if (entry != widget) { |
| 599 | rehash = WWREHASHVAL(tab, window)((((window) % tab->rehash) + 2) | 1); |
| 600 | do { |
| 601 | idx = WWREHASH(tab, idx, rehash)((idx + rehash) & tab->mask); |
| 602 | if (!(entry = tab->entries[idx])) { |
| 603 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 604 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 605 | return; |
| 606 | } |
| 607 | } while (entry != widget); |
| 608 | } |
| 609 | tab->entries[idx] = (Widget)&WWfake; |
| 610 | tab->fakes++; |
| 611 | } |
| 612 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 613 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 614 | } |
| 615 | |
| 616 | static void ExpandWWTable( |
| 617 | register WWTable tab) |
| 618 | { |
| 619 | unsigned int oldmask; |
| 620 | register Widget *oldentries, *entries; |
| 621 | register Cardinal oldidx, newidx, rehash; |
| 622 | register Widget entry; |
| 623 | |
| 624 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 625 | oldmask = tab->mask; |
| 626 | oldentries = tab->entries; |
| 627 | tab->occupied -= tab->fakes; |
| 628 | tab->fakes = 0; |
| 629 | if ((tab->occupied + (tab->occupied >> 2)) > tab->mask) { |
| 630 | tab->mask = (tab->mask << 1) + 1; |
| 631 | tab->rehash = tab->mask - 2; |
| 632 | } |
| 633 | entries = tab->entries = (Widget *) __XtCalloc(tab->mask+1, sizeof(Widget)); |
| 634 | for (oldidx = 0; oldidx <= oldmask; oldidx++) { |
| 635 | if ((entry = oldentries[oldidx]) && entry != &WWfake) { |
| 636 | newidx = WWHASH(tab, XtWindow(entry))((((entry)->core.window)) & tab->mask); |
| 637 | if (entries[newidx]) { |
| 638 | rehash = WWREHASHVAL(tab, XtWindow(entry))((((((entry)->core.window)) % tab->rehash) + 2) | 1); |
| 639 | do { |
| 640 | newidx = WWREHASH(tab, newidx, rehash)((newidx + rehash) & tab->mask); |
| 641 | } while (entries[newidx]); |
| 642 | } |
| 643 | entries[newidx] = entry; |
| 644 | } |
| 645 | } |
| 646 | XtFree((char *)oldentries); |
| 647 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 648 | } |
| 649 | |
| 650 | Widget XtWindowToWidget( |
| 651 | register Display *display, |
| 652 | register Window window) |
| 653 | { |
| 654 | register WWTable tab; |
| 655 | register int idx, rehash; |
| 656 | register Widget entry; |
| 657 | WWPair pair; |
| 658 | DPY_TO_APPCON(display)XtAppContext app = (_XtProcessLock ? XtDisplayToApplicationContext (display): ((void*)0)); |
| 659 | |
| 660 | if (!window) return NULL((void*)0); |
| 661 | |
| 662 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 663 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 664 | tab = WWTABLE(display)(_XtGetPerDisplay(display)->WWtable); |
| 665 | idx = WWHASH(tab, window)((window) & tab->mask); |
| 666 | if ((entry = tab->entries[idx]) && XtWindow(entry)((entry)->core.window) != window) { |
| 667 | rehash = WWREHASHVAL(tab, window)((((window) % tab->rehash) + 2) | 1); |
| 668 | do { |
| 669 | idx = WWREHASH(tab, idx, rehash)((idx + rehash) & tab->mask); |
| 670 | } while ((entry = tab->entries[idx]) && XtWindow(entry)((entry)->core.window) != window); |
| 671 | } |
| 672 | if (entry) { |
| 673 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 674 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 675 | return entry; |
| 676 | } |
| 677 | for (pair = tab->pairs; pair; pair = pair->next) { |
| 678 | if (pair->window == window) { |
| 679 | entry = pair->widget; |
| 680 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 681 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 682 | return entry; |
| 683 | } |
| 684 | } |
| 685 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 686 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 687 | return NULL((void*)0); |
| 688 | } |
| 689 | |
| 690 | void _XtAllocWWTable( |
| 691 | XtPerDisplay pd) |
| 692 | { |
| 693 | register WWTable tab; |
| 694 | |
| 695 | tab = (WWTable) __XtMalloc(sizeof(struct _WWTable)); |
| 696 | tab->mask = 0x7f; |
| 697 | tab->rehash = tab->mask - 2; |
| 698 | tab->entries = (Widget *) __XtCalloc(tab->mask+1, sizeof(Widget)); |
| 699 | tab->occupied = 0; |
| 700 | tab->fakes = 0; |
| 701 | tab->pairs = NULL((void*)0); |
| 702 | pd->WWtable = tab; |
| 703 | } |
| 704 | |
| 705 | void _XtFreeWWTable( |
| 706 | register XtPerDisplay pd) |
| 707 | { |
| 708 | register WWPair pair, next; |
| 709 | |
| 710 | for (pair = pd->WWtable->pairs; pair; pair = next) { |
| 711 | next = pair->next; |
| 712 | XtFree((char *)pair); |
| 713 | } |
| 714 | XtFree((char *)pd->WWtable->entries); |
| 715 | XtFree((char *)pd->WWtable); |
| 716 | } |
| 717 | |
| 718 | #define EHMAXSIZE25 25 /* do not make whopping big */ |
| 719 | |
| 720 | static Boolean CallEventHandlers( |
| 721 | Widget widget, |
| 722 | XEvent *event, |
| 723 | EventMask mask) |
| 724 | { |
| 725 | register XtEventRec *p; |
| 726 | XtEventHandler *proc; |
| 727 | XtPointer *closure; |
| 728 | XtEventHandler procs[EHMAXSIZE25]; |
| 729 | XtPointer closures[EHMAXSIZE25]; |
| 730 | Boolean cont_to_disp = True1; |
| 731 | int i, numprocs; |
| 732 | |
| 733 | /* Have to copy the procs into an array, because one of them might |
| 734 | * call XtRemoveEventHandler, which would break our linked list. */ |
| 735 | |
| 736 | numprocs = 0; |
| 737 | for (p=widget->core.event_table; p; p = p->next) { |
| 738 | if ((!p->has_type_specifier && (mask & p->mask)) || |
| 739 | (p->has_type_specifier && event->type == EXT_TYPE(p)(((XtEventRecExt*) ((p)+1))->type))) |
| 740 | numprocs++; |
| 741 | } |
| 742 | if (numprocs > EHMAXSIZE25) { |
| 743 | proc = (XtEventHandler *)__XtMalloc(numprocs * (sizeof(XtEventHandler) + |
| 744 | sizeof(XtPointer))); |
| 745 | closure = (XtPointer *)(proc + numprocs); |
| 746 | } else { |
| 747 | proc = procs; |
| 748 | closure = closures; |
| 749 | } |
| 750 | numprocs = 0; |
| 751 | for (p=widget->core.event_table; p; p = p->next) { |
| 752 | if ((!p->has_type_specifier && (mask & p->mask)) || |
| 753 | (p->has_type_specifier && event->type == EXT_TYPE(p)(((XtEventRecExt*) ((p)+1))->type))) { |
| 754 | proc[numprocs] = p->proc; |
| 755 | closure[numprocs] = p->closure; |
| 756 | numprocs++; |
| 757 | } |
| 758 | } |
| 759 | /* FUNCTIONS CALLED THROUGH POINTER proc: |
| 760 | Selection.c:ReqCleanup, |
| 761 | "Shell.c":EventHandler, |
| 762 | PassivGrab.c:ActiveHandler, |
| 763 | PassivGrab.c:RealizeHandler, |
| 764 | Keyboard.c:QueryEventMask, |
| 765 | _XtHandleFocus, |
| 766 | Selection.c:HandleSelectionReplies, |
| 767 | Selection.c:HandleGetIncrement, |
| 768 | Selection.c:HandleIncremental, |
| 769 | Selection.c:HandlePropertyGone, |
| 770 | Selection.c:HandleSelectionEvents |
| 771 | */ |
| 772 | for (i = 0; i < numprocs && cont_to_disp; i++) |
| 773 | (*(proc[i]))(widget, closure[i], event, &cont_to_disp); |
| 774 | if (numprocs > EHMAXSIZE25) |
| 775 | XtFree((char *)proc); |
| 776 | return cont_to_disp; |
| 777 | } |
| 778 | |
| 779 | static void CompressExposures(XEvent *, Widget); |
| 780 | |
| 781 | #define KnownButtons((1L<<8)|(1L<<9)|(1L<<10)| (1L<<11)|( 1L<<12)) (Button1MotionMask(1L<<8)|Button2MotionMask(1L<<9)|Button3MotionMask(1L<<10)|\ |
| 782 | Button4MotionMask(1L<<11)|Button5MotionMask(1L<<12)) |
| 783 | |
| 784 | /* keep this SMALL to avoid blowing stack cache! */ |
| 785 | /* because some compilers allocate all local locals on procedure entry */ |
| 786 | #define EHSIZE4 4 |
| 787 | |
| 788 | Boolean XtDispatchEventToWidget( |
| 789 | Widget widget, |
| 790 | XEvent* event) |
| 791 | { |
| 792 | register XtEventRec *p; |
| 793 | Boolean was_dispatched = False0; |
| 794 | Boolean call_tm = False0; |
| 795 | Boolean cont_to_disp; |
| 796 | EventMask mask; |
| 797 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); |
| 798 | |
| 799 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 800 | |
| 801 | mask = _XtConvertTypeToMask(event->type); |
| 802 | if (event->type == MotionNotify6) |
| 803 | mask |= (event->xmotion.state & KnownButtons((1L<<8)|(1L<<9)|(1L<<10)| (1L<<11)|( 1L<<12))); |
| 804 | |
| 805 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 806 | if ( (mask == ExposureMask(1L<<15)) || |
| 807 | ((event->type == NoExpose14) && NO_EXPOSE(0x40 & (widget->core.widget_class->core_class.compress_exposure ))) || |
| 808 | ((event->type == GraphicsExpose13) && GRAPHICS_EXPOSE((0x10 & (widget->core.widget_class->core_class.compress_exposure )) || (0x20 & (widget->core.widget_class->core_class .compress_exposure)))) ) { |
| 809 | |
| 810 | if (widget->core.widget_class->core_class.expose != NULL((void*)0) ) { |
| 811 | |
| 812 | /* We need to mask off the bits that could contain the information |
| 813 | * about whether or not we desire Graphics and NoExpose events. */ |
| 814 | |
| 815 | if ( (COMP_EXPOSE_TYPE((widget->core.widget_class->core_class.compress_exposure ) & 0x0f) == XtExposeNoCompress((XtEnum)0)) || |
| 816 | (event->type == NoExpose14) ) |
| 817 | |
| 818 | (*widget->core.widget_class->core_class.expose) |
| 819 | (widget, event, (Region)NULL((void*)0)); |
| 820 | else { |
| 821 | CompressExposures(event, widget); |
| 822 | } |
| 823 | was_dispatched = True1; |
| 824 | } |
| 825 | } |
| 826 | |
| 827 | if ((mask == VisibilityChangeMask(1L<<16)) && |
| 828 | XtClass(widget)((widget)->core.widget_class)->core_class.visible_interest) { |
| 829 | was_dispatched = True1; |
| 830 | /* our visibility just changed... */ |
| 831 | switch (((XVisibilityEvent *)event)->state) { |
| 832 | case VisibilityUnobscured0: |
| 833 | widget->core.visible = TRUE1; |
| 834 | break; |
| 835 | |
| 836 | case VisibilityPartiallyObscured1: |
| 837 | /* what do we want to say here? */ |
| 838 | /* well... some of us is visible */ |
| 839 | widget->core.visible = TRUE1; |
| 840 | break; |
| 841 | |
| 842 | case VisibilityFullyObscured2: |
| 843 | widget->core.visible = FALSE0; |
| 844 | /* do we want to mark our children obscured? */ |
| 845 | break; |
| 846 | } |
| 847 | } |
| 848 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 849 | |
| 850 | /* to maintain "copy" semantics we check TM now but call later */ |
| 851 | if (widget->core.tm.translations && |
| 852 | (mask & widget->core.tm.translations->eventMask)) |
| 853 | call_tm = True1; |
| 854 | |
| 855 | cont_to_disp = True1; |
| 856 | p=widget->core.event_table; |
| 857 | if (p) { |
| 858 | if (p->next) { |
| 859 | XtEventHandler proc[EHSIZE4]; |
| 860 | XtPointer closure[EHSIZE4]; |
| 861 | int numprocs = 0; |
| 862 | |
| 863 | /* Have to copy the procs into an array, because one of them might |
| 864 | * call XtRemoveEventHandler, which would break our linked list. */ |
| 865 | |
| 866 | for (; p; p = p->next) { |
| 867 | if ((!p->has_type_specifier && (mask & p->mask)) || |
| 868 | (p->has_type_specifier && event->type == EXT_TYPE(p)(((XtEventRecExt*) ((p)+1))->type))) { |
| 869 | if (numprocs >= EHSIZE4) |
| 870 | break; |
| 871 | proc[numprocs] = p->proc; |
| 872 | closure[numprocs] = p->closure; |
| 873 | numprocs++; |
| 874 | } |
| 875 | } |
| 876 | if (numprocs) { |
| 877 | if (p) { |
| 878 | cont_to_disp = CallEventHandlers(widget, event, mask); |
| 879 | } else { |
| 880 | int i; |
| 881 | for (i = 0; i < numprocs && cont_to_disp; i++) |
| 882 | (*(proc[i]))(widget, closure[i], event, &cont_to_disp); |
| 883 | /* FUNCTIONS CALLED THROUGH POINTER proc: |
| 884 | Selection.c:ReqCleanup, |
| 885 | "Shell.c":EventHandler, |
| 886 | PassivGrab.c:ActiveHandler, |
| 887 | PassivGrab.c:RealizeHandler, |
| 888 | Keyboard.c:QueryEventMask, |
| 889 | _XtHandleFocus, |
| 890 | Selection.c:HandleSelectionReplies, |
| 891 | Selection.c:HandleGetIncrement, |
| 892 | Selection.c:HandleIncremental, |
| 893 | Selection.c:HandlePropertyGone, |
| 894 | Selection.c:HandleSelectionEvents |
| 895 | */ |
| 896 | } |
| 897 | was_dispatched = True1; |
| 898 | } |
| 899 | } else if ((!p->has_type_specifier && (mask & p->mask)) || |
| 900 | (p->has_type_specifier && event->type == EXT_TYPE(p)(((XtEventRecExt*) ((p)+1))->type))) { |
| 901 | (*p->proc)(widget, p->closure, event, &cont_to_disp); |
| 902 | was_dispatched = True1; |
| 903 | } |
| 904 | } |
| 905 | if (call_tm && cont_to_disp) |
| 906 | _XtTranslateEvent(widget, event); |
| 907 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 908 | return (was_dispatched|call_tm); |
| 909 | } |
| 910 | |
| 911 | /* |
| 912 | * This structure is passed into the check exposure proc. |
| 913 | */ |
| 914 | |
| 915 | typedef struct _CheckExposeInfo { |
| 916 | int type1, type2; /* Types of events to check for. */ |
| 917 | Boolean maximal; /* Ignore non-exposure events? */ |
| 918 | Boolean non_matching; /* Was there an event that did not |
| 919 | match either type? */ |
| 920 | Window window; /* Window to match. */ |
| 921 | } CheckExposeInfo; |
| 922 | |
| 923 | #define GetCount(ev)(((XExposeEvent *)(ev))->count) (((XExposeEvent *)(ev))->count) |
| 924 | |
| 925 | static void SendExposureEvent(XEvent *, Widget, XtPerDisplay); |
| 926 | static Boolint CheckExposureEvent(Display *, XEvent *, char *); |
| 927 | static void AddExposureToRectangularRegion(XEvent *, Region); |
| 928 | |
| 929 | /* Function Name: CompressExposures |
| 930 | * Description: Handles all exposure compression |
| 931 | * Arguments: event - the xevent that is to be dispatched |
| 932 | * widget - the widget that this event occured in. |
| 933 | * Returns: none. |
| 934 | * |
| 935 | * NOTE: Event must be of type Expose or GraphicsExpose. |
| 936 | */ |
| 937 | |
| 938 | static void |
| 939 | CompressExposures( |
| 940 | XEvent * event, |
| 941 | Widget widget) |
| 942 | { |
| 943 | CheckExposeInfo info; |
| 944 | int count; |
| 945 | Display* dpy = XtDisplay (widget)(((widget)->core.screen)->display); |
| 946 | XtPerDisplay pd = _XtGetPerDisplay(dpy); |
| 947 | XtEnum comp_expose; |
| 948 | XtEnum comp_expose_type; |
| 949 | Boolean no_region; |
| 950 | |
| 951 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 952 | comp_expose = COMP_EXPOSE(widget->core.widget_class->core_class.compress_exposure ); |
| 953 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 954 | comp_expose_type = comp_expose & 0x0f; |
| 955 | no_region = ((comp_expose & XtExposeNoRegion0x80) ? True1 : False0); |
| 956 | |
| 957 | if (no_region) |
| 958 | AddExposureToRectangularRegion(event, pd->region); |
| 959 | else |
| 960 | XtAddExposureToRegion(event, pd->region); |
| 961 | |
| 962 | if ( GetCount(event)(((XExposeEvent *)(event))->count) != 0 ) |
| 963 | return; |
| 964 | |
| 965 | if ((comp_expose_type == XtExposeCompressSeries((XtEnum)1)) || |
| 966 | (XEventsQueued(dpy, QueuedAfterReading1) == 0)) { |
| 967 | SendExposureEvent(event, widget, pd); |
| 968 | return; |
| 969 | } |
| 970 | |
| 971 | if (comp_expose & XtExposeGraphicsExposeMerged0x20) { |
| 972 | info.type1 = Expose12; |
| 973 | info.type2 = GraphicsExpose13; |
| 974 | } |
| 975 | else { |
| 976 | info.type1 = event->type; |
| 977 | info.type2 = 0; |
| 978 | } |
| 979 | info.maximal = (comp_expose_type == XtExposeCompressMaximal3); |
| 980 | info.non_matching = FALSE0; |
| 981 | info.window = XtWindow(widget)((widget)->core.window); |
| 982 | |
| 983 | /* |
| 984 | * We have to be very careful here not to hose down the processor |
| 985 | * when blocking until count gets to zero. |
| 986 | * |
| 987 | * First, check to see if there are any events in the queue for this |
| 988 | * widget, and of the correct type. |
| 989 | * |
| 990 | * Once we cannot find any more events, check to see that count is zero. |
| 991 | * If it is not then block until we get another exposure event. |
| 992 | * |
| 993 | * If we find no more events, and count on the last one we saw was zero we |
| 994 | * we can be sure that all events have been processed. |
| 995 | * |
| 996 | * Unfortunately, we wind up having to look at the entire queue |
| 997 | * event if we're not doing Maximal compression, due to the |
| 998 | * semantics of XCheckIfEvent (we can't abort without re-ordering |
| 999 | * the event queue as a side-effect). |
| 1000 | */ |
| 1001 | |
| 1002 | count = 0; |
| 1003 | while (TRUE1) { |
| 1004 | XEvent event_return; |
| 1005 | |
| 1006 | if (XCheckIfEvent(dpy, &event_return, |
| 1007 | CheckExposureEvent, (char *) &info)) { |
| 1008 | |
| 1009 | count = GetCount(&event_return)(((XExposeEvent *)(&event_return))->count); |
| 1010 | if (no_region) |
| 1011 | AddExposureToRectangularRegion(&event_return, pd->region); |
| 1012 | else |
| 1013 | XtAddExposureToRegion(&event_return, pd->region); |
| 1014 | } |
| 1015 | else if (count != 0) { |
| 1016 | XIfEvent(dpy, &event_return, |
| 1017 | CheckExposureEvent, (char *) &info); |
| 1018 | count = GetCount(&event_return)(((XExposeEvent *)(&event_return))->count); |
| 1019 | if (no_region) |
| 1020 | AddExposureToRectangularRegion(&event_return, pd->region); |
| 1021 | else |
| 1022 | XtAddExposureToRegion(&event_return, pd->region); |
| 1023 | } |
| 1024 | else /* count == 0 && XCheckIfEvent Failed. */ |
| 1025 | break; |
| 1026 | } |
| 1027 | |
| 1028 | SendExposureEvent(event, widget, pd); |
| 1029 | } |
| 1030 | |
| 1031 | void XtAddExposureToRegion( |
| 1032 | XEvent *event, |
| 1033 | Region region) |
| 1034 | { |
| 1035 | XRectangle rect; |
| 1036 | XExposeEvent *ev = (XExposeEvent *) event; |
| 1037 | /* These Expose and GraphicsExpose fields are at identical offsets */ |
| 1038 | |
| 1039 | if (event->type == Expose12 || event->type == GraphicsExpose13) { |
| 1040 | rect.x = ev->x; |
| 1041 | rect.y = ev->y; |
| 1042 | rect.width = ev->width; |
| 1043 | rect.height = ev->height; |
| 1044 | XUnionRectWithRegion(&rect, region, region); |
| 1045 | } |
| 1046 | } |
| 1047 | |
| 1048 | #ifndef MAX |
| 1049 | #define MAX(a,b)(((a) > (b)) ? (a) : (b)) (((a) > (b)) ? (a) : (b)) |
| 1050 | #endif |
| 1051 | |
| 1052 | #ifndef MIN |
| 1053 | #define MIN(a,b)(((a) < (b)) ? (a) : (b)) (((a) < (b)) ? (a) : (b)) |
| 1054 | #endif |
| 1055 | |
| 1056 | static void AddExposureToRectangularRegion( |
| 1057 | XEvent *event, /* when called internally, type is always appropriate */ |
| 1058 | Region region) |
| 1059 | { |
| 1060 | XRectangle rect; |
| 1061 | XExposeEvent *ev = (XExposeEvent *) event; |
| 1062 | /* These Expose and GraphicsExpose fields are at identical offsets */ |
| 1063 | |
| 1064 | rect.x = ev->x; |
| 1065 | rect.y = ev->y; |
| 1066 | rect.width = ev->width; |
| 1067 | rect.height = ev->height; |
| 1068 | |
| 1069 | if (XEmptyRegion(region)) { |
| 1070 | XUnionRectWithRegion(&rect, region, region); |
| 1071 | } else { |
| 1072 | XRectangle merged, bbox; |
| 1073 | |
| 1074 | XClipBox(region, &bbox); |
| 1075 | merged.x = MIN(rect.x, bbox.x)(((rect.x) < (bbox.x)) ? (rect.x) : (bbox.x)); |
| 1076 | merged.y = MIN(rect.y, bbox.y)(((rect.y) < (bbox.y)) ? (rect.y) : (bbox.y)); |
| 1077 | merged.width = MAX(rect.x + rect.width,(((rect.x + rect.width) > (bbox.x + bbox.width)) ? (rect.x + rect.width) : (bbox.x + bbox.width)) |
| 1078 | bbox.x + bbox.width)(((rect.x + rect.width) > (bbox.x + bbox.width)) ? (rect.x + rect.width) : (bbox.x + bbox.width)) - merged.x; |
| 1079 | merged.height = MAX(rect.y + rect.height,(((rect.y + rect.height) > (bbox.y + bbox.height)) ? (rect .y + rect.height) : (bbox.y + bbox.height)) |
| 1080 | bbox.y + bbox.height)(((rect.y + rect.height) > (bbox.y + bbox.height)) ? (rect .y + rect.height) : (bbox.y + bbox.height)) - merged.y; |
| 1081 | XUnionRectWithRegion(&merged, region, region); |
| 1082 | } |
| 1083 | } |
| 1084 | |
| 1085 | static Region nullRegion; |
| 1086 | /* READ-ONLY VARIABLES: nullRegion */ |
| 1087 | |
| 1088 | void _XtEventInitialize(void) |
| 1089 | { |
| 1090 | #ifndef __lock_lint |
| 1091 | nullRegion = XCreateRegion(); |
| 1092 | #endif |
| 1093 | } |
| 1094 | |
| 1095 | /* Function Name: SendExposureEvent |
| 1096 | * Description: Sets the x, y, width, and height of the event |
| 1097 | * to be the clip box of Expose Region. |
| 1098 | * Arguments: event - the X Event to mangle; Expose or GraphicsExpose. |
| 1099 | * widget - the widget that this event occured in. |
| 1100 | * pd - the per display information for this widget. |
| 1101 | * Returns: none. |
| 1102 | */ |
| 1103 | |
| 1104 | static void |
| 1105 | SendExposureEvent( |
| 1106 | XEvent * event, |
| 1107 | Widget widget, |
| 1108 | XtPerDisplay pd) |
| 1109 | { |
| 1110 | XtExposeProc expose; |
| 1111 | XRectangle rect; |
| 1112 | XtEnum comp_expose; |
| 1113 | XExposeEvent *ev = (XExposeEvent *) event; |
| 1114 | |
| 1115 | XClipBox(pd->region, &rect); |
| 1116 | ev->x = rect.x; |
| 1117 | ev->y = rect.y; |
| 1118 | ev->width = rect.width; |
| 1119 | ev->height = rect.height; |
| 1120 | |
| 1121 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 1122 | comp_expose = COMP_EXPOSE(widget->core.widget_class->core_class.compress_exposure ); |
| 1123 | expose = widget->core.widget_class->core_class.expose; |
| 1124 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 1125 | if (comp_expose & XtExposeNoRegion0x80) |
| 1126 | (*expose)(widget, event, NULL((void*)0)); |
| 1127 | else |
| 1128 | (*expose)(widget, event, pd->region); |
| 1129 | (void) XIntersectRegion(nullRegion, pd->region, pd->region); |
| 1130 | } |
| 1131 | |
| 1132 | /* Function Name: CheckExposureEvent |
| 1133 | * Description: Checks the event queue for an expose event |
| 1134 | * Arguments: display - the display connection. |
| 1135 | * event - the event to check. |
| 1136 | * arg - a pointer to the exposure info structure. |
| 1137 | * Returns: TRUE if we found an event of the correct type |
| 1138 | * with the right window. |
| 1139 | * |
| 1140 | * NOTE: The only valid types (info.type1 and info.type2) are Expose |
| 1141 | * and GraphicsExpose. |
| 1142 | */ |
| 1143 | |
| 1144 | /* ARGSUSED */ |
| 1145 | static Boolint |
| 1146 | CheckExposureEvent( |
| 1147 | Display * disp, |
| 1148 | XEvent * event, |
| 1149 | char * arg) |
| 1150 | { |
| 1151 | CheckExposeInfo * info = ((CheckExposeInfo *) arg); |
| 1152 | |
| 1153 | if ( (info->type1 == event->type) || (info->type2 == event->type)) { |
| 1154 | if (!info->maximal && info->non_matching) return FALSE0; |
| 1155 | if (event->type == GraphicsExpose13) |
| 1156 | return(event->xgraphicsexpose.drawable == info->window); |
| 1157 | return(event->xexpose.window == info->window); |
| 1158 | } |
| 1159 | info->non_matching = TRUE1; |
| 1160 | return(FALSE0); |
| 1161 | } |
| 1162 | |
| 1163 | static EventMask const masks[] = { |
| 1164 | 0, /* Error, should never see */ |
| 1165 | 0, /* Reply, should never see */ |
| 1166 | KeyPressMask(1L<<0), /* KeyPress */ |
| 1167 | KeyReleaseMask(1L<<1), /* KeyRelease */ |
| 1168 | ButtonPressMask(1L<<2), /* ButtonPress */ |
| 1169 | ButtonReleaseMask(1L<<3), /* ButtonRelease */ |
| 1170 | PointerMotionMask(1L<<6) /* MotionNotify */ |
| 1171 | | ButtonMotionMask(1L<<13), |
| 1172 | EnterWindowMask(1L<<4), /* EnterNotify */ |
| 1173 | LeaveWindowMask(1L<<5), /* LeaveNotify */ |
| 1174 | FocusChangeMask(1L<<21), /* FocusIn */ |
| 1175 | FocusChangeMask(1L<<21), /* FocusOut */ |
| 1176 | KeymapStateMask(1L<<14), /* KeymapNotify */ |
| 1177 | ExposureMask(1L<<15), /* Expose */ |
| 1178 | NonMaskableMask((EventMask)0x80000000L), /* GraphicsExpose, in GC */ |
| 1179 | NonMaskableMask((EventMask)0x80000000L), /* NoExpose, in GC */ |
| 1180 | VisibilityChangeMask(1L<<16), /* VisibilityNotify */ |
| 1181 | SubstructureNotifyMask(1L<<19), /* CreateNotify */ |
| 1182 | StructureNotifyMask(1L<<17) /* DestroyNotify */ |
| 1183 | | SubstructureNotifyMask(1L<<19), |
| 1184 | StructureNotifyMask(1L<<17) /* UnmapNotify */ |
| 1185 | | SubstructureNotifyMask(1L<<19), |
| 1186 | StructureNotifyMask(1L<<17) /* MapNotify */ |
| 1187 | | SubstructureNotifyMask(1L<<19), |
| 1188 | SubstructureRedirectMask(1L<<20), /* MapRequest */ |
| 1189 | StructureNotifyMask(1L<<17) /* ReparentNotify */ |
| 1190 | | SubstructureNotifyMask(1L<<19), |
| 1191 | StructureNotifyMask(1L<<17) /* ConfigureNotify */ |
| 1192 | | SubstructureNotifyMask(1L<<19), |
| 1193 | SubstructureRedirectMask(1L<<20), /* ConfigureRequest */ |
| 1194 | StructureNotifyMask(1L<<17) /* GravityNotify */ |
| 1195 | | SubstructureNotifyMask(1L<<19), |
| 1196 | ResizeRedirectMask(1L<<18), /* ResizeRequest */ |
| 1197 | StructureNotifyMask(1L<<17) /* CirculateNotify */ |
| 1198 | | SubstructureNotifyMask(1L<<19), |
| 1199 | SubstructureRedirectMask(1L<<20), /* CirculateRequest */ |
| 1200 | PropertyChangeMask(1L<<22), /* PropertyNotify */ |
| 1201 | NonMaskableMask((EventMask)0x80000000L), /* SelectionClear */ |
| 1202 | NonMaskableMask((EventMask)0x80000000L), /* SelectionRequest */ |
| 1203 | NonMaskableMask((EventMask)0x80000000L), /* SelectionNotify */ |
| 1204 | ColormapChangeMask(1L<<23), /* ColormapNotify */ |
| 1205 | NonMaskableMask((EventMask)0x80000000L), /* ClientMessage */ |
| 1206 | NonMaskableMask((EventMask)0x80000000L) /* MappingNotify */ |
| 1207 | }; |
| 1208 | |
| 1209 | EventMask _XtConvertTypeToMask ( |
| 1210 | int eventType) |
| 1211 | { |
| 1212 | if ((Cardinal) eventType < XtNumber(masks)((Cardinal) (sizeof(masks) / sizeof(masks[0])))) |
| 1213 | return masks[eventType]; |
| 1214 | else |
| 1215 | return NoEventMask0L; |
| 1216 | } |
| 1217 | |
| 1218 | Boolean _XtOnGrabList( |
| 1219 | register Widget widget, |
| 1220 | XtGrabRec *grabList) |
| 1221 | { |
| 1222 | register XtGrabRec* gl; |
| 1223 | for (; widget != NULL((void*)0); widget = (Widget)widget->core.parent) { |
| 1224 | for (gl = grabList; gl != NULL((void*)0); gl = gl->next) { |
| 1225 | if (gl->widget == widget) return TRUE1; |
| 1226 | if (gl->exclusive) break; |
| 1227 | } |
| 1228 | } |
| 1229 | return FALSE0; |
| 1230 | } |
| 1231 | |
| 1232 | static Widget LookupSpringLoaded( |
| 1233 | XtGrabList grabList) |
| 1234 | { |
| 1235 | XtGrabList gl; |
| 1236 | |
| 1237 | for (gl = grabList; gl != NULL((void*)0); gl = gl->next) { |
| 1238 | if (gl->spring_loaded) { |
| 1239 | if (XtIsSensitive(gl->widget)((((Object)(gl->widget))->object.widget_class->core_class .class_inited & 0x02) ? ((gl->widget)->core.sensitive && (gl->widget)->core.ancestor_sensitive) : 0)) |
| 1240 | return gl->widget; |
| 1241 | else |
| 1242 | return NULL((void*)0); |
| 1243 | } |
| 1244 | if (gl->exclusive) break; |
| 1245 | } |
| 1246 | return NULL((void*)0); |
| 1247 | } |
| 1248 | |
| 1249 | static Boolean DispatchEvent( |
| 1250 | XEvent* event, |
| 1251 | Widget widget) |
| 1252 | { |
| 1253 | |
| 1254 | if (event->type == EnterNotify7 && |
| 1255 | event->xcrossing.mode == NotifyNormal0 && |
| 1256 | widget->core.widget_class->core_class.compress_enterleave) { |
| 1257 | if (XPending(event->xcrossing.display)) { |
| 1258 | XEvent nextEvent; |
| 1259 | XPeekEvent(event->xcrossing.display, &nextEvent); |
| 1260 | if (nextEvent.type == LeaveNotify8 && |
| 1261 | event->xcrossing.window == nextEvent.xcrossing.window && |
| 1262 | nextEvent.xcrossing.mode == NotifyNormal0 && |
| 1263 | ((event->xcrossing.detail != NotifyInferior2 && |
| 1264 | nextEvent.xcrossing.detail != NotifyInferior2) || |
| 1265 | (event->xcrossing.detail == NotifyInferior2 && |
| 1266 | nextEvent.xcrossing.detail == NotifyInferior2))) { |
| 1267 | /* skip the enter/leave pair */ |
| 1268 | XNextEvent(event->xcrossing.display, &nextEvent); |
| 1269 | return False0; |
| 1270 | } |
| 1271 | } |
| 1272 | } |
| 1273 | |
| 1274 | if (event->type == MotionNotify6 && |
| 1275 | widget->core.widget_class->core_class.compress_motion) { |
| 1276 | while (XPending(event->xmotion.display)) { |
| 1277 | XEvent nextEvent; |
| 1278 | XPeekEvent(event->xmotion.display, &nextEvent); |
| 1279 | if (nextEvent.type == MotionNotify6 && |
| 1280 | event->xmotion.window == nextEvent.xmotion.window && |
| 1281 | event->xmotion.subwindow == nextEvent.xmotion.subwindow) { |
| 1282 | /* replace the current event with the next one */ |
| 1283 | XNextEvent(event->xmotion.display, event); |
| 1284 | } else break; |
| 1285 | } |
| 1286 | } |
| 1287 | |
| 1288 | return XtDispatchEventToWidget(widget, event); |
| 1289 | } |
| 1290 | |
| 1291 | typedef enum _GrabType {pass, ignore, remap} GrabType; |
| 1292 | |
| 1293 | #if !defined(AIXV3) || !defined(AIXSHLIB) |
| 1294 | static /* AIX shared libraries are broken */ |
| 1295 | #endif |
| 1296 | Boolean _XtDefaultDispatcher( |
| 1297 | XEvent *event) |
| 1298 | { |
| 1299 | register Widget widget; |
| 1300 | GrabType grabType; |
| 1301 | XtPerDisplayInput pdi; |
| 1302 | XtGrabList grabList; |
| 1303 | Boolean was_dispatched = False0; |
| 1304 | DPY_TO_APPCON(event->xany.display)XtAppContext app = (_XtProcessLock ? XtDisplayToApplicationContext (event->xany.display): ((void*)0)); |
| 1305 | |
| 1306 | /* the default dispatcher discards all extension events */ |
| 1307 | if (event->type >= LASTEvent36) |
| 1308 | return False0; |
| 1309 | |
| 1310 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 1311 | |
| 1312 | switch (event->type) { |
| 1313 | case KeyPress2: |
| 1314 | case KeyRelease3: |
| 1315 | case ButtonPress4: |
| 1316 | case ButtonRelease5: grabType = remap; break; |
| 1317 | case MotionNotify6: |
| 1318 | case EnterNotify7: grabType = ignore; break; |
| 1319 | default: grabType = pass; break; |
| 1320 | } |
| 1321 | |
| 1322 | widget = XtWindowToWidget (event->xany.display, event->xany.window); |
| 1323 | pdi = _XtGetPerDisplayInput(event->xany.display); |
| 1324 | grabList = *_XtGetGrabList(pdi)(&(pdi)->grabList); |
| 1325 | |
| 1326 | if (widget == NULL((void*)0)) { |
| 1327 | if (grabType == remap |
| 1328 | && (widget = LookupSpringLoaded(grabList)) != NULL((void*)0)) { |
| 1329 | /* event occurred in a non-widget window, but we've promised also |
| 1330 | to dispatch it to the nearest accessible spring_loaded widget */ |
| 1331 | was_dispatched = (XFilterEvent(event, XtWindow(widget)((widget)->core.window)) |
| 1332 | || XtDispatchEventToWidget(widget, event)); |
| 1333 | } |
| 1334 | else was_dispatched = XFilterEvent(event, None0L); |
| 1335 | } |
| 1336 | else if (grabType == pass) { |
| 1337 | if (event->type == LeaveNotify8 || |
| 1338 | event->type == FocusIn9 || |
| 1339 | event->type == FocusOut10) { |
| 1340 | if (XtIsSensitive (widget)((((Object)(widget))->object.widget_class->core_class.class_inited & 0x02) ? ((widget)->core.sensitive && (widget )->core.ancestor_sensitive) : 0)) |
| 1341 | was_dispatched = (XFilterEvent(event, XtWindow(widget)((widget)->core.window)) || |
| 1342 | XtDispatchEventToWidget(widget, event)); |
| 1343 | } else was_dispatched = (XFilterEvent(event, XtWindow(widget)((widget)->core.window)) || |
| 1344 | XtDispatchEventToWidget(widget, event)); |
| 1345 | } |
| 1346 | else if (grabType == ignore) { |
| 1347 | if ((grabList == NULL((void*)0) || _XtOnGrabList(widget, grabList)) |
| 1348 | && XtIsSensitive(widget)((((Object)(widget))->object.widget_class->core_class.class_inited & 0x02) ? ((widget)->core.sensitive && (widget )->core.ancestor_sensitive) : 0)) { |
| 1349 | was_dispatched = (XFilterEvent(event, XtWindow(widget)((widget)->core.window)) |
| 1350 | || DispatchEvent(event, widget)); |
| 1351 | } |
| 1352 | } |
| 1353 | else if (grabType == remap) { |
| 1354 | EventMask mask = _XtConvertTypeToMask(event->type); |
| 1355 | Widget dspWidget; |
| 1356 | Boolean was_filtered = False0; |
| 1357 | |
| 1358 | dspWidget = _XtFindRemapWidget(event, widget, mask, pdi); |
| 1359 | |
| 1360 | if ((grabList == NULL((void*)0) ||_XtOnGrabList(dspWidget, grabList)) |
| 1361 | && XtIsSensitive(dspWidget)((((Object)(dspWidget))->object.widget_class->core_class .class_inited & 0x02) ? ((dspWidget)->core.sensitive && (dspWidget)->core.ancestor_sensitive) : 0)) { |
| 1362 | if ((was_filtered = XFilterEvent(event, XtWindow(dspWidget)((dspWidget)->core.window)))) { |
| 1363 | /* If this event activated a device grab, release it. */ |
| 1364 | _XtUngrabBadGrabs(event, widget, mask, pdi); |
| 1365 | was_dispatched = True1; |
| 1366 | } else |
| 1367 | was_dispatched = XtDispatchEventToWidget(dspWidget, event); |
| 1368 | } |
| 1369 | else _XtUngrabBadGrabs(event, widget, mask, pdi); |
| 1370 | |
| 1371 | if (!was_filtered) { |
| 1372 | /* Also dispatch to nearest accessible spring_loaded. */ |
| 1373 | /* Fetch this afterward to reflect modal list changes */ |
| 1374 | grabList = *_XtGetGrabList(pdi)(&(pdi)->grabList); |
| 1375 | widget = LookupSpringLoaded(grabList); |
| 1376 | if (widget != NULL((void*)0) && widget != dspWidget) { |
| 1377 | was_dispatched = (XFilterEvent(event, XtWindow(widget)((widget)->core.window)) |
| 1378 | || XtDispatchEventToWidget(widget, event) |
| 1379 | || was_dispatched); |
| 1380 | } |
| 1381 | } |
| 1382 | } |
| 1383 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1384 | return was_dispatched; |
| 1385 | } |
| 1386 | |
| 1387 | Boolean XtDispatchEvent ( |
| 1388 | XEvent *event) |
| 1389 | { |
| 1390 | Boolean was_dispatched, safe; |
| 1391 | int dispatch_level; |
| 1392 | int starting_count; |
| 1393 | XtPerDisplay pd; |
| 1394 | Time time = 0; |
| 1395 | XtEventDispatchProc dispatch = _XtDefaultDispatcher; |
| 1396 | XtAppContext app = XtDisplayToApplicationContext(event->xany.display); |
| 1397 | |
| 1398 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 1399 | dispatch_level = ++app->dispatch_level; |
| 1400 | starting_count = app->destroy_count; |
| 1401 | |
| 1402 | switch (event->type) { |
| 1403 | case KeyPress2: |
| 1404 | case KeyRelease3: time = event->xkey.time; break; |
| 1405 | case ButtonPress4: |
| 1406 | case ButtonRelease5: time = event->xbutton.time; break; |
| 1407 | case MotionNotify6: time = event->xmotion.time; break; |
| 1408 | case EnterNotify7: |
| 1409 | case LeaveNotify8: time = event->xcrossing.time; break; |
| 1410 | case PropertyNotify28: time = event->xproperty.time; break; |
| 1411 | case SelectionClear29: time = event->xselectionclear.time; break; |
| 1412 | |
| 1413 | case MappingNotify34: _XtRefreshMapping(event, True1); break; |
| 1414 | } |
| 1415 | pd = _XtGetPerDisplay(event->xany.display); |
| 1416 | if (time) pd->last_timestamp = time; |
| 1417 | pd->last_event = *event; |
| 1418 | |
| 1419 | if (pd->dispatcher_list) { |
| 1420 | dispatch = pd->dispatcher_list[event->type]; |
| 1421 | if (dispatch == NULL((void*)0)) dispatch = _XtDefaultDispatcher; |
| 1422 | } |
| 1423 | was_dispatched = (*dispatch)(event); |
| 1424 | |
| 1425 | /* |
| 1426 | * To make recursive XtDispatchEvent work, we need to do phase 2 destroys |
| 1427 | * only on those widgets destroyed by this particular dispatch. |
| 1428 | * |
| 1429 | */ |
| 1430 | |
| 1431 | if (app->destroy_count > starting_count) |
| 1432 | _XtDoPhase2Destroy(app, dispatch_level); |
| 1433 | |
| 1434 | app->dispatch_level = dispatch_level - 1; |
| 1435 | |
| 1436 | if ((safe = _XtSafeToDestroy(app)((app)->dispatch_level == 0))) { |
| 1437 | if (app->dpy_destroy_count != 0) _XtCloseDisplays(app); |
| 1438 | if (app->free_bindings) _XtDoFreeBindings(app); |
| 1439 | } |
| 1440 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1441 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 1442 | if (_XtAppDestroyCount != 0 && safe) _XtDestroyAppContexts(); |
| 1443 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 1444 | return was_dispatched; |
| 1445 | } |
| 1446 | |
| 1447 | /* ARGSUSED */ |
| 1448 | static void GrabDestroyCallback( |
| 1449 | Widget widget, |
| 1450 | XtPointer closure, |
| 1451 | XtPointer call_data) |
| 1452 | { |
| 1453 | /* Remove widget from grab list if it destroyed */ |
| 1454 | XtRemoveGrab(widget); |
| 1455 | } |
| 1456 | |
| 1457 | static XtGrabRec *NewGrabRec( |
| 1458 | Widget widget, |
| 1459 | Boolean exclusive, |
| 1460 | Boolean spring_loaded) |
| 1461 | { |
| 1462 | register XtGrabList gl; |
| 1463 | |
| 1464 | gl = XtNew(XtGrabRec)((XtGrabRec *) XtMalloc((unsigned) sizeof(XtGrabRec))); |
| 1465 | gl->next = NULL((void*)0); |
| 1466 | gl->widget = widget; |
| 1467 | gl->exclusive = exclusive; |
| 1468 | gl->spring_loaded = spring_loaded; |
| 1469 | |
| 1470 | return gl; |
| 1471 | } |
| 1472 | |
| 1473 | void XtAddGrab( |
| 1474 | Widget widget, |
| 1475 | _XtBooleanint exclusive, |
| 1476 | _XtBooleanint spring_loaded) |
| 1477 | { |
| 1478 | register XtGrabList gl; |
| 1479 | XtGrabList *grabListPtr; |
| 1480 | XtAppContext app = XtWidgetToApplicationContext(widget); |
| 1481 | |
| 1482 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 1483 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 1484 | grabListPtr = _XtGetGrabList(_XtGetPerDisplayInput(XtDisplay(widget)))(&(_XtGetPerDisplayInput((((widget)->core.screen)-> display)))->grabList); |
| 1485 | |
| 1486 | if (spring_loaded && !exclusive) { |
| 1487 | XtAppWarningMsg(app, |
| 1488 | "grabError", "xtAddGrab", XtCXtToolkitError, |
| 1489 | "XtAddGrab requires exclusive grab if spring_loaded is TRUE", |
| 1490 | (String *) NULL((void*)0), (Cardinal *) NULL((void*)0)); |
| 1491 | exclusive = TRUE1; |
| 1492 | } |
| 1493 | |
| 1494 | gl = NewGrabRec(widget, exclusive, spring_loaded); |
| 1495 | gl->next = *grabListPtr; |
| 1496 | *grabListPtr = gl; |
| 1497 | |
| 1498 | XtAddCallback (widget, XtNdestroyCallback((char*)&XtStrings[169]), |
| 1499 | GrabDestroyCallback, (XtPointer) NULL((void*)0)); |
| 1500 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 1501 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1502 | } |
| 1503 | |
| 1504 | void XtRemoveGrab( |
| 1505 | Widget widget) |
| 1506 | { |
| 1507 | register XtGrabList gl; |
| 1508 | register Boolean done; |
| 1509 | XtGrabList *grabListPtr; |
| 1510 | XtAppContext app = XtWidgetToApplicationContext(widget); |
| 1511 | |
| 1512 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 1513 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 1514 | |
| 1515 | grabListPtr = _XtGetGrabList(_XtGetPerDisplayInput(XtDisplay(widget)))(&(_XtGetPerDisplayInput((((widget)->core.screen)-> display)))->grabList); |
| 1516 | |
| 1517 | for (gl = *grabListPtr; gl != NULL((void*)0); gl = gl->next) { |
| 1518 | if (gl->widget == widget) break; |
| 1519 | } |
| 1520 | |
| 1521 | if (gl == NULL((void*)0)) { |
| 1522 | XtAppWarningMsg(app, |
| 1523 | "grabError","xtRemoveGrab",XtCXtToolkitError, |
| 1524 | "XtRemoveGrab asked to remove a widget not on the list", |
| 1525 | (String *)NULL((void*)0), (Cardinal *)NULL((void*)0)); |
| 1526 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 1527 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1528 | return; |
| 1529 | } |
| 1530 | |
| 1531 | do { |
| 1532 | gl = *grabListPtr; |
| 1533 | done = (gl->widget == widget); |
| 1534 | *grabListPtr = gl->next; |
| 1535 | XtRemoveCallback(gl->widget, XtNdestroyCallback((char*)&XtStrings[169]), |
| 1536 | GrabDestroyCallback, (XtPointer)NULL((void*)0)); |
| 1537 | XtFree((char *)gl); |
| 1538 | } while (! done); |
| 1539 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 1540 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1541 | return; |
| 1542 | } |
| 1543 | |
| 1544 | void XtMainLoop(void) |
| 1545 | { |
| 1546 | XtAppMainLoop(_XtDefaultAppContext()); |
| 1547 | } |
| 1548 | |
| 1549 | void XtAppMainLoop( |
| 1550 | XtAppContext app) |
| 1551 | { |
| 1552 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 1553 | do { |
| 1554 | XtAppProcessEvent(app, XtIMAll(1 | 2 | 4 | 8)); |
| 1555 | } while(app->exit_flag == FALSE0); |
| 1556 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1557 | } |
| 1558 | |
| 1559 | void _XtFreeEventTable( |
| 1560 | XtEventTable *event_table) |
| 1561 | { |
| 1562 | register XtEventTable event; |
| 1563 | |
| 1564 | event = *event_table; |
| 1565 | while (event != NULL((void*)0)) { |
| 1566 | register XtEventTable next = event->next; |
| 1567 | XtFree((char *) event); |
| 1568 | event = next; |
| 1569 | } |
| 1570 | } |
| 1571 | |
| 1572 | Time XtLastTimestampProcessed( |
| 1573 | Display *dpy) |
| 1574 | { |
| 1575 | Time time; |
| 1576 | DPY_TO_APPCON(dpy)XtAppContext app = (_XtProcessLock ? XtDisplayToApplicationContext (dpy): ((void*)0)); |
| 1577 | |
| 1578 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 1579 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 1580 | time = _XtGetPerDisplay(dpy)->last_timestamp; |
| 1581 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 1582 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1583 | return(time); |
| 1584 | } |
| 1585 | |
| 1586 | XEvent* XtLastEventProcessed( |
| 1587 | Display* dpy) |
| 1588 | { |
| 1589 | XEvent* le = NULL((void*)0); |
| 1590 | DPY_TO_APPCON(dpy)XtAppContext app = (_XtProcessLock ? XtDisplayToApplicationContext (dpy): ((void*)0)); |
| 1591 | |
| 1592 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 1593 | le = &_XtGetPerDisplay(dpy)->last_event; |
| 1594 | if (!le->xany.serial) |
| 1595 | le = NULL((void*)0); |
| 1596 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1597 | return le; |
| 1598 | } |
| 1599 | |
| 1600 | void _XtSendFocusEvent( |
| 1601 | Widget child, |
| 1602 | int type) |
| 1603 | { |
| 1604 | child = XtIsWidget(child)(((Object)(child))->object.widget_class->core_class.class_inited & 0x04) ? child : _XtWindowedAncestor(child); |
| 1605 | if (XtIsSensitive(child)((((Object)(child))->object.widget_class->core_class.class_inited & 0x02) ? ((child)->core.sensitive && (child) ->core.ancestor_sensitive) : 0) && !child->core.being_destroyed |
| 1606 | && XtIsRealized(child)((((((Object)(child))->object.widget_class->core_class. class_inited & 0x04) ? (child) : _XtWindowedAncestor(child )) ->core.window) != 0L) |
| 1607 | && (XtBuildEventMask(child) & FocusChangeMask(1L<<21))) |
| 1608 | { |
| 1609 | XFocusChangeEvent event; |
| 1610 | Display* dpy = XtDisplay (child)(((child)->core.screen)->display); |
| 1611 | |
| 1612 | event.type = type; |
| 1613 | event.serial = LastKnownRequestProcessed(dpy)(((_XPrivDisplay)(dpy))->last_request_read); |
| 1614 | event.send_event = True1; |
| 1615 | event.display = dpy; |
| 1616 | event.window = XtWindow(child)((child)->core.window); |
| 1617 | event.mode = NotifyNormal0; |
| 1618 | event.detail = NotifyAncestor0; |
| 1619 | if (XFilterEvent((XEvent*)&event, XtWindow(child)((child)->core.window))) |
| 1620 | return; |
| 1621 | XtDispatchEventToWidget(child, (XEvent*)&event); |
| 1622 | } |
| 1623 | } |
| 1624 | |
| 1625 | static XtEventDispatchProc* NewDispatcherList(void) |
| 1626 | { |
| 1627 | XtEventDispatchProc* l = |
| 1628 | (XtEventDispatchProc*) __XtCalloc((Cardinal) 128, |
| 1629 | (Cardinal)sizeof(XtEventDispatchProc)); |
| 1630 | return l; |
| 1631 | } |
| 1632 | |
| 1633 | XtEventDispatchProc XtSetEventDispatcher( |
| 1634 | Display *dpy, |
| 1635 | int event_type, |
| 1636 | XtEventDispatchProc proc) |
| 1637 | { |
| 1638 | XtEventDispatchProc *list; |
| 1639 | XtEventDispatchProc old_proc; |
| 1640 | register XtPerDisplay pd; |
| 1641 | DPY_TO_APPCON(dpy)XtAppContext app = (_XtProcessLock ? XtDisplayToApplicationContext (dpy): ((void*)0)); |
| 1642 | |
| 1643 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 1644 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 1645 | pd = _XtGetPerDisplay(dpy); |
| 1646 | |
| 1647 | list = pd->dispatcher_list; |
| 1648 | if (!list) { |
| 1649 | if (proc) list = pd->dispatcher_list = NewDispatcherList(); |
| 1650 | else return _XtDefaultDispatcher; |
| 1651 | } |
| 1652 | old_proc = list[event_type]; |
| 1653 | list[event_type] = proc; |
| 1654 | if (old_proc == NULL((void*)0)) old_proc = _XtDefaultDispatcher; |
| 1655 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 1656 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1657 | return old_proc; |
| 1658 | } |
| 1659 | |
| 1660 | void XtRegisterExtensionSelector( |
| 1661 | Display *dpy, |
| 1662 | int min_event_type, |
| 1663 | int max_event_type, |
| 1664 | XtExtensionSelectProc proc, |
| 1665 | XtPointer client_data) |
| 1666 | { |
| 1667 | ExtSelectRec *e; |
| 1668 | XtPerDisplay pd; |
| 1669 | int i; |
| 1670 | DPY_TO_APPCON(dpy)XtAppContext app = (_XtProcessLock ? XtDisplayToApplicationContext (dpy): ((void*)0)); |
| 1671 | |
| 1672 | if (dpy == NULL((void*)0)) XtErrorMsg("nullDisplay", |
| 1673 | "xtRegisterExtensionSelector", XtCXtToolkitError, |
| 1674 | "XtRegisterExtensionSelector requires a non-NULL display", |
| 1675 | (String *) NULL((void*)0), (Cardinal *) NULL((void*)0)); |
| 1676 | |
| 1677 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 1678 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 1679 | pd = _XtGetPerDisplay(dpy); |
| 1680 | |
| 1681 | for (i = 0; i < pd->ext_select_count; i++) { |
| 1682 | e = &pd->ext_select_list[i]; |
| 1683 | if (e->min == min_event_type && e->max == max_event_type) { |
| 1684 | e->proc = proc; |
| 1685 | e->client_data = client_data; |
| 1686 | return; |
| 1687 | } |
| 1688 | if ((min_event_type >= e->min && min_event_type <= e->max) || |
| 1689 | (max_event_type >= e->min && max_event_type <= e->max)) { |
| 1690 | XtErrorMsg("rangeError", "xtRegisterExtensionSelector", |
| 1691 | XtCXtToolkitError, |
| 1692 | "Attempt to register multiple selectors for one extension event type", |
| 1693 | (String *) NULL((void*)0), (Cardinal *) NULL((void*)0)); |
| 1694 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 1695 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1696 | return; |
| 1697 | } |
| 1698 | } |
| 1699 | pd->ext_select_count++; |
| 1700 | pd->ext_select_list = |
| 1701 | (ExtSelectRec *) XtRealloc((char *) pd->ext_select_list, |
| 1702 | pd->ext_select_count * sizeof(ExtSelectRec)); |
| 1703 | for (i = pd->ext_select_count - 1; i > 0; i--) { |
| 1704 | if (pd->ext_select_list[i-1].min > min_event_type) { |
| 1705 | pd->ext_select_list[i] = pd->ext_select_list[i-1]; |
| 1706 | } else break; |
| 1707 | } |
| 1708 | pd->ext_select_list[i].min = min_event_type; |
| 1709 | pd->ext_select_list[i].max = max_event_type; |
| 1710 | pd->ext_select_list[i].proc = proc; |
| 1711 | pd->ext_select_list[i].client_data = client_data; |
| 1712 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 1713 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1714 | } |
| 1715 | |
| 1716 | void _XtExtensionSelect( |
| 1717 | Widget widget) |
| 1718 | { |
| 1719 | int i; |
| 1720 | XtPerDisplay pd; |
| 1721 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); |
| 1722 | |
| 1723 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 1724 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 1725 | |
| 1726 | pd = _XtGetPerDisplay(XtDisplay(widget)(((widget)->core.screen)->display)); |
| 1727 | |
| 1728 | for (i = 0; i < pd->ext_select_count; i++) { |
| 1729 | CallExtensionSelector(widget, pd->ext_select_list+i, FALSE0); |
| 1730 | } |
| 1731 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 1732 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1733 | } |