Bug Summary

File:Geometry.c
Location:line 569, column 9
Description:Dereference of null pointer

Annotated Source Code

1/***********************************************************
2Copyright (c) 1993, Oracle and/or its affiliates. All rights reserved.
3
4Permission is hereby granted, free of charge, to any person obtaining a
5copy of this software and associated documentation files (the "Software"),
6to deal in the Software without restriction, including without limitation
7the rights to use, copy, modify, merge, publish, distribute, sublicense,
8and/or sell copies of the Software, and to permit persons to whom the
9Software is furnished to do so, subject to the following conditions:
10
11The above copyright notice and this permission notice (including the next
12paragraph) shall be included in all copies or substantial portions of the
13Software.
14
15THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21DEALINGS IN THE SOFTWARE.
22
23Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
24
25 All Rights Reserved
26
27Permission to use, copy, modify, and distribute this software and its
28documentation for any purpose and without fee is hereby granted,
29provided that the above copyright notice appear in all copies and that
30both that copyright notice and this permission notice appear in
31supporting documentation, and that the name of Digital not be
32used in advertising or publicity pertaining to distribution of the
33software without specific, written prior permission.
34
35DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
36ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
37DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
38ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
39WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
40ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
41SOFTWARE.
42
43******************************************************************/
44
45/*
46
47Copyright 1987, 1988, 1994, 1998 The Open Group
48
49Permission to use, copy, modify, distribute, and sell this software and its
50documentation for any purpose is hereby granted without fee, provided that
51the above copyright notice appear in all copies and that both that
52copyright notice and this permission notice appear in supporting
53documentation.
54
55The above copyright notice and this permission notice shall be included in
56all copies or substantial portions of the Software.
57
58THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
59IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
60FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
61OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
62AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
63CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
64
65Except as contained in this notice, the name of The Open Group shall not be
66used in advertising or otherwise to promote the sale, use or other dealings
67in 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 "ShellP.h"
76#include "ShellI.h"
77
78static void ClearRectObjAreas(
79 RectObj r,
80 XWindowChanges* old)
81{
82 Widget pw = _XtWindowedAncestor((Widget)r);
83 int bw2;
84
85 bw2 = old->border_width << 1;
86 XClearArea( XtDisplay(pw)(((pw)->core.screen)->display), XtWindow(pw)((pw)->core.window),
87 old->x, old->y,
88 old->width + bw2, old->height + bw2,
89 TRUE1 );
90
91 bw2 = r->rectangle.border_width << 1;
92 XClearArea( XtDisplay(pw)(((pw)->core.screen)->display), XtWindow(pw)((pw)->core.window),
93 (int)r->rectangle.x, (int)r->rectangle.y,
94 (unsigned int)(r->rectangle.width + bw2),
95 (unsigned int)(r->rectangle.height + bw2),
96 TRUE1 );
97}
98
99/*
100 * Internal function used by XtMakeGeometryRequest and XtSetValues.
101 * Returns more data than the public interface. Does not convert
102 * XtGeometryDone to XtGeometryYes.
103 *
104 * clear_rect_obj - *** RETURNED ***
105 * TRUE if the rect obj has been cleared, false otherwise.
106 */
107
108XtGeometryResult
109_XtMakeGeometryRequest (
110 Widget widget,
111 XtWidgetGeometry *request,
112 XtWidgetGeometry *reply,
113 Boolean * clear_rect_obj)
114{
115 XtWidgetGeometry junk;
116 XtGeometryHandler manager = (XtGeometryHandler) NULL((void*)0);
117 XtGeometryResult returnCode;
118 Widget parent = widget->core.parent;
119 Boolean managed, parentRealized, rgm = False0;
120 XtConfigureHookDataRec req;
121 Widget hookobj;
122
123 *clear_rect_obj = FALSE0;
124
125 CALLGEOTAT(_XtGeoTrace(widget,
126 "\"%s\" is making a %sgeometry request to its parent \"%s\".\n",
127 XtName(widget),
128 ((request->request_mode & XtCWQueryOnly))? "query only ":"",
129 (XtParent(widget))?XtName(XtParent(widget)):"Root"));
130 CALLGEOTAT(_XtGeoTab(1));
131
132 if (XtIsShell(widget)(((Object)(widget))->object.widget_class->core_class.class_inited
& 0x20)) {
133 ShellClassExtension ext;
134 LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)();
135 for (ext = (ShellClassExtension)((ShellWidgetClass)XtClass(widget)((widget)->core.widget_class))
136 ->shell_class.extension;
137 ext != NULL((void*)0) && ext->record_type != NULLQUARK((XrmQuark) 0);
138 ext = (ShellClassExtension)ext->next_extension);
139
140 if (ext != NULL((void*)0)) {
141 if ( ext->version == XtShellExtensionVersion1L
142 && ext->record_size == sizeof(ShellClassExtensionRec)) {
143 manager = ext->root_geometry_manager;
144 rgm = True1;
145 } else {
146 String params[1];
147 Cardinal num_params = 1;
148 params[0] = XtClass(widget)((widget)->core.widget_class)->core_class.class_name;
149 XtAppErrorMsg(XtWidgetToApplicationContext(widget),
150 "invalidExtension", "xtMakeGeometryRequest",
151 XtCXtToolkitError,
152 "widget class %s has invalid ShellClassExtension record",
153 params, &num_params);
154 }
155 } else {
156 XtAppErrorMsg(XtWidgetToApplicationContext(widget),
157 "internalError", "xtMakeGeometryRequest",
158 XtCXtToolkitError,
159 "internal error; ShellClassExtension is NULL",
160 NULL((void*)0), NULL((void*)0));
161 }
162 managed = True1;
163 parentRealized = TRUE1;
164 UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)();
165 } else /* not shell */ {
166 if (parent == NULL((void*)0))
167 XtAppErrorMsg(XtWidgetToApplicationContext(widget),
168 "invalidParent","xtMakeGeometryRequest",
169 XtCXtToolkitError,
170 "non-shell has no parent in XtMakeGeometryRequest",
171 (String *)NULL((void*)0), (Cardinal *)NULL((void*)0));
172
173 managed = XtIsManaged(widget)((((Object)(widget))->object.widget_class->core_class.class_inited
& 0x02) ? (widget)->core.managed : 0);
174 parentRealized = XtIsRealized(parent)((((((Object)(parent))->object.widget_class->core_class
.class_inited & 0x04) ? (parent) : _XtWindowedAncestor(parent
)) ->core.window) != 0L);
175 if (XtIsComposite(parent)(((Object)(parent))->object.widget_class->core_class.class_inited
& 0x08))
176 {
177 LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)();
178 manager = ((CompositeWidgetClass) (parent->core.widget_class))
179 ->composite_class.geometry_manager;
180 UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)();
181 }
182 }
183
184#if 0
185 /*
186 * The Xt spec says that these conditions must generate
187 * error messages (not warnings), but many Xt applications
188 * and toolkits (including parts of Xaw, Motif and Netscape)
189 * depend on the previous Xt behaviour. Thus, these tests
190 * should probably remain disabled.
191 */
192 if (parentRealized && managed) {
193 if (parent && !XtIsComposite(parent)(((Object)(parent))->object.widget_class->core_class.class_inited
& 0x08))
194 {
195 /*
196 * This shouldn't ever happen, we only test for this to pass
197 * VSW5. Normally managing the widget will catch this, but VSW5
198 * does some really screwy stuff to get here.
199 */
200 XtAppErrorMsg(XtWidgetToApplicationContext(widget),
201 "invalidParent", "xtMakeGeometryRequest",
202 XtCXtToolkitError,
203 "XtMakeGeometryRequest - parent not composite",
204 (String *)NULL((void*)0), (Cardinal *)NULL((void*)0));
205 }
206 else if (manager == (XtGeometryHandler) NULL((void*)0))
207 {
208 XtAppErrorMsg(XtWidgetToApplicationContext(widget),
209 "invalidGeometryManager","xtMakeGeometryRequest",
210 XtCXtToolkitError,
211 "XtMakeGeometryRequest - parent has no geometry manager",
212 (String *)NULL((void*)0), (Cardinal *)NULL((void*)0));
213 }
214 }
215#else
216 if (!manager)
217 managed = False0;
218#endif
219
220 if (widget->core.being_destroyed) {
221 CALLGEOTAT(_XtGeoTab(-1));
222 CALLGEOTAT(_XtGeoTrace(widget,
223 "It is being destroyed, just return XtGeometryNo.\n"));
224 return XtGeometryNo;
225 }
226
227 /* see if requesting anything to change */
228 req.changeMask = 0;
229 if (request->request_mode & CWStackMode(1<<6)
230 && request->stack_mode != XtSMDontChange5) {
231 req.changeMask |= CWStackMode(1<<6);
232 CALLGEOTAT(_XtGeoTrace(widget,
233 "Asking for a change in StackMode!\n"));
234 if (request->request_mode & CWSibling(1<<5)) {
235 XtCheckSubclass(request->sibling, rectObjClass,
236 "XtMakeGeometryRequest");
237 req.changeMask |= CWSibling(1<<5);
238 }
239 }
240 if (request->request_mode & CWX(1<<0)
241 && widget->core.x != request->x) {
242 CALLGEOTAT(_XtGeoTrace(widget,
243 "Asking for a change in x: from %d to %d.\n",
244 widget->core.x, request->x));
245 req.changeMask |= CWX(1<<0);
246 }
247 if (request->request_mode & CWY(1<<1)
248 && widget->core.y != request->y) {
249 CALLGEOTAT(_XtGeoTrace(widget,
250 "Asking for a change in y: from %d to %d.\n",
251 widget->core.y, request->y));
252 req.changeMask |= CWY(1<<1);
253 }
254 if (request->request_mode & CWWidth(1<<2)
255 && widget->core.width != request->width) {
256 CALLGEOTAT(_XtGeoTrace(widget,"Asking for a change in width: from %d to %d.\n",
257 widget->core.width, request->width));
258 req.changeMask |= CWWidth(1<<2);
259 }
260 if (request->request_mode & CWHeight(1<<3)
261 && widget->core.height != request->height) {
262 CALLGEOTAT(_XtGeoTrace(widget,
263 "Asking for a change in height: from %d to %d.\n",
264 widget->core.height, request->height));
265 req.changeMask |= CWHeight(1<<3);
266 }
267 if (request->request_mode & CWBorderWidth(1<<4)
268 && widget->core.border_width != request->border_width){
269 CALLGEOTAT(_XtGeoTrace(widget,
270 "Asking for a change in border_width: from %d to %d.\n",
271 widget->core.border_width, request->border_width));
272 req.changeMask |= CWBorderWidth(1<<4);
273 }
274 if (! req.changeMask) {
275 CALLGEOTAT(_XtGeoTrace(widget,
276 "Asking for nothing new,\n"));
277 CALLGEOTAT(_XtGeoTab(-1));
278 CALLGEOTAT(_XtGeoTrace(widget,
279 "just return XtGeometryYes.\n"));
280 return XtGeometryYes;
281 }
282 req.changeMask |= (request->request_mode & XtCWQueryOnly(1 << 7));
283
284 if ( !(req.changeMask & XtCWQueryOnly(1 << 7)) && XtIsRealized(widget)((((((Object)(widget))->object.widget_class->core_class
.class_inited & 0x04) ? (widget) : _XtWindowedAncestor(widget
)) ->core.window) != 0L) ) {
285 /* keep record of the current geometry so we know what's changed */
286 req.changes.x = widget->core.x ;
287 req.changes.y = widget->core.y ;
288 req.changes.width = widget->core.width ;
289 req.changes.height = widget->core.height ;
290 req.changes.border_width = widget->core.border_width ;
291 }
292
293 if (!managed || !parentRealized) {
294 CALLGEOTAT(_XtGeoTrace(widget,
295 "Not Managed or Parent not realized.\n"));
296 /* Don't get parent's manager involved--assume the answer is yes */
297 if (req.changeMask & XtCWQueryOnly(1 << 7)) {
298 /* He was just asking, don't change anything, just tell him yes */
299 CALLGEOTAT(_XtGeoTrace(widget,"QueryOnly request\n"));
300 CALLGEOTAT(_XtGeoTab(-1));
301 CALLGEOTAT(_XtGeoTrace(widget,"just return XtGeometryYes.\n"));
302 return XtGeometryYes;
303 } else {
304 CALLGEOTAT(_XtGeoTrace(widget,
305 "Copy values from request to widget.\n"));
306 /* copy values from request to widget */
307 if (request->request_mode & CWX(1<<0))
308 widget->core.x = request->x;
309 if (request->request_mode & CWY(1<<1))
310 widget->core.y = request->y;
311 if (request->request_mode & CWWidth(1<<2))
312 widget->core.width = request->width;
313 if (request->request_mode & CWHeight(1<<3))
314 widget->core.height = request->height;
315 if (request->request_mode & CWBorderWidth(1<<4))
316 widget->core.border_width = request->border_width;
317 if (!parentRealized) {
318 CALLGEOTAT(_XtGeoTab(-1));
319 CALLGEOTAT(_XtGeoTrace(widget,"and return XtGeometryYes.\n"));
320 return XtGeometryYes;
321 }
322 else returnCode = XtGeometryYes;
323 }
324 } else {
325 /* go ask the widget's geometry manager */
326 CALLGEOTAT(_XtGeoTrace(widget,
327 "Go ask the parent geometry manager.\n"));
328 if (reply == (XtWidgetGeometry *) NULL((void*)0)) {
329 returnCode = (*manager)(widget, request, &junk);
330 } else {
331 returnCode = (*manager)(widget, request, reply);
332 }
333 }
334
335 /*
336 * If Unrealized, not a XtGeometryYes, or a query-only then we are done.
337 */
338
339 if ((returnCode != XtGeometryYes) ||
340 (req.changeMask & XtCWQueryOnly(1 << 7)) || !XtIsRealized(widget)((((((Object)(widget))->object.widget_class->core_class
.class_inited & 0x04) ? (widget) : _XtWindowedAncestor(widget
)) ->core.window) != 0L)) {
341
342#ifdef XT_GEO_TATTLER
343 switch(returnCode){
344 case XtGeometryNo:
345 CALLGEOTAT(_XtGeoTab(-1));
346 CALLGEOTAT(_XtGeoTrace(widget,"\"%s\" returns XtGeometryNo.\n",
347 (XtParent(widget))?XtName(XtParent(widget)):"Root"));
348 /* check for no change */
349 break ;
350 case XtGeometryDone:
351 CALLGEOTAT(_XtGeoTab(-1));
352 CALLGEOTAT(_XtGeoTrace(widget,"\"%s\" returns XtGeometryDone.\n",
353 (XtParent(widget))?XtName(XtParent(widget)):"Root"));
354 /* check for no change in queryonly */
355 break ;
356 case XtGeometryAlmost:
357 CALLGEOTAT(_XtGeoTab(-1));
358 CALLGEOTAT(_XtGeoTrace(widget,"\"%s\" returns XtGeometryAlmost.\n",
359 (XtParent(widget))?XtName(XtParent(widget)):"Root"));
360 CALLGEOTAT(_XtGeoTab(1));
361 CALLGEOTAT(_XtGeoTrace(widget,"Proposal: width %d height %d.\n",
362 (reply)?reply->width:junk.width,
363 (reply)?reply->height:junk.height));
364 CALLGEOTAT(_XtGeoTab(-1));
365
366 /* check for no change */
367 break ;
368 case XtGeometryYes:
369 if (req.changeMask & XtCWQueryOnly(1 << 7)) {
370 CALLGEOTAT(_XtGeoTrace(widget,
371 "QueryOnly specified, no configuration.\n"));
372 }
373 if (!XtIsRealized(widget)((((((Object)(widget))->object.widget_class->core_class
.class_inited & 0x04) ? (widget) : _XtWindowedAncestor(widget
)) ->core.window) != 0L)) {
374 CALLGEOTAT(_XtGeoTrace(widget,
375 "\"%s\" not realized, no configuration.\n",
376 XtName(widget)));
377 }
378 CALLGEOTAT(_XtGeoTab(-1));
379 CALLGEOTAT(_XtGeoTrace(widget,"\"%s\" returns XtGeometryYes.\n",
380 (XtParent(widget))?XtName(XtParent(widget)):"Root"));
381 break ;
382 }
383#endif
384 return returnCode;
385 }
386
387 CALLGEOTAT(_XtGeoTab(-1));
388 CALLGEOTAT(_XtGeoTrace(widget,"\"%s\" returns XtGeometryYes.\n",
389 (XtParent(widget))?XtName(XtParent(widget)):"Root"));
390
391 if (XtIsWidget(widget)(((Object)(widget))->object.widget_class->core_class.class_inited
& 0x04)) { /* reconfigure the window (if needed) */
392
393 if (rgm) return returnCode;
394
395 if (req.changes.x != widget->core.x) {
396 req.changeMask |= CWX(1<<0);
397 req.changes.x = widget->core.x;
398 CALLGEOTAT(_XtGeoTrace(widget,
399 "x changing to %d\n",widget->core.x));
400 }
401 if (req.changes.y != widget->core.y) {
402 req.changeMask |= CWY(1<<1);
403 req.changes.y = widget->core.y;
404 CALLGEOTAT(_XtGeoTrace(widget,
405 "y changing to %d\n",widget->core.y));
406 }
407 if (req.changes.width != widget->core.width) {
408 req.changeMask |= CWWidth(1<<2);
409 req.changes.width = widget->core.width;
410 CALLGEOTAT(_XtGeoTrace(widget,
411 "width changing to %d\n",widget->core.width));
412 }
413 if (req.changes.height != widget->core.height) {
414 req.changeMask |= CWHeight(1<<3);
415 req.changes.height = widget->core.height;
416 CALLGEOTAT(_XtGeoTrace(widget,
417 "height changing to %d\n",widget->core.height));
418 }
419 if (req.changes.border_width != widget->core.border_width) {
420 req.changeMask |= CWBorderWidth(1<<4);
421 req.changes.border_width = widget->core.border_width;
422 CALLGEOTAT(_XtGeoTrace(widget,
423 "border_width changing to %d\n",
424 widget->core.border_width));
425 }
426 if (req.changeMask & CWStackMode(1<<6)) {
427 req.changes.stack_mode = request->stack_mode;
428 CALLGEOTAT(_XtGeoTrace(widget,"stack_mode changing\n"));
429 if (req.changeMask & CWSibling(1<<5)) {
430 if (XtIsWidget(request->sibling)(((Object)(request->sibling))->object.widget_class->
core_class.class_inited & 0x04))
431 req.changes.sibling = XtWindow(request->sibling)((request->sibling)->core.window);
432 else
433 req.changeMask &= ~(CWStackMode(1<<6) | CWSibling(1<<5));
434 }
435 }
436
437#ifdef XT_GEO_TATTLER
438 if (req.changeMask) {
439 CALLGEOTAT(_XtGeoTrace(widget,
440 "XConfigure \"%s\"'s window.\n",
441 XtName(widget)));
442 } else {
443 CALLGEOTAT(_XtGeoTrace(widget,
444 "No window configuration needed for \"%s\".\n",
445 XtName(widget)));
446 }
447#endif
448
449 XConfigureWindow(XtDisplay(widget)(((widget)->core.screen)->display), XtWindow(widget)((widget)->core.window),
450 req.changeMask, &req.changes);
451 }
452 else { /* RectObj child of realized Widget */
453 *clear_rect_obj = TRUE1;
454 CALLGEOTAT(_XtGeoTrace(widget,
455 "ClearRectObj on \"%s\".\n",XtName(widget)));
456
457 ClearRectObjAreas((RectObj)widget, &req.changes);
458 }
459 hookobj = XtHooksOfDisplay(XtDisplayOfObject(widget)((((Object)(widget))->object.widget_class->core_class.class_inited
& 0x04) ? (widget)->core.screen->display : _XtIsHookObject
(widget) ? ((HookObject)(widget))->hooks.screen->display
: _XtWindowedAncestor(widget)->core.screen->display));;
460 if (XtHasCallbacks(hookobj, XtNconfigureHook((char*)&XtStrings[2072])) == XtCallbackHasSome) {
461 req.type = XtHconfigure((char*)&XtStrings[2598]);
462 req.widget = widget;
463 XtCallCallbackList(hookobj,
464 ((HookObject)hookobj)->hooks.confighook_callbacks,
465 (XtPointer)&req);
466 }
467
468 return returnCode;
469} /* _XtMakeGeometryRequest */
470
471
472/* Public routines */
473
474XtGeometryResult XtMakeGeometryRequest (
475 Widget widget,
476 XtWidgetGeometry *request,
477 XtWidgetGeometry *reply)
478{
479 Boolean junk;
480 XtGeometryResult r;
481 XtGeometryHookDataRec call_data;
482 Widget hookobj = XtHooksOfDisplay(XtDisplayOfObject(widget)((((Object)(widget))->object.widget_class->core_class.class_inited
& 0x04) ? (widget)->core.screen->display : _XtIsHookObject
(widget) ? ((HookObject)(widget))->hooks.screen->display
: _XtWindowedAncestor(widget)->core.screen->display));
483 WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext
(widget) : ((void*)0));
484
485 LOCK_APP(app)if(app && app->lock)(*app->lock)(app);
486 if (XtHasCallbacks(hookobj, XtNgeometryHook((char*)&XtStrings[2086])) == XtCallbackHasSome) {
487 call_data.type = XtHpreGeometry((char*)&XtStrings[2610]);
488 call_data.widget = widget;
489 call_data.request = request;
490 XtCallCallbackList(hookobj,
491 ((HookObject)hookobj)->hooks.geometryhook_callbacks,
492 (XtPointer)&call_data);
493 call_data.result = r =
494 _XtMakeGeometryRequest(widget, request, reply, &junk);
495 call_data.type = XtHpostGeometry((char*)&XtStrings[2624]);
496 call_data.reply = reply;
497 XtCallCallbackList(hookobj,
498 ((HookObject)hookobj)->hooks.geometryhook_callbacks,
499 (XtPointer)&call_data);
500 } else {
501 r = _XtMakeGeometryRequest(widget, request, reply, &junk);
502 }
503 UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app);
504
505 return ((r == XtGeometryDone) ? XtGeometryYes : r);
506}
507
508XtGeometryResult
509XtMakeResizeRequest(
510 Widget widget,
511 _XtDimensionDimension width,
512 _XtDimensionDimension height,
513 Dimension *replyWidth,
514 Dimension *replyHeight)
515{
516 XtWidgetGeometry request, reply;
517 XtGeometryResult r;
518 XtGeometryHookDataRec call_data;
519 Boolean junk;
520 Widget hookobj = XtHooksOfDisplay(XtDisplayOfObject(widget)((((Object)(widget))->object.widget_class->core_class.class_inited
& 0x04) ? (widget)->core.screen->display : _XtIsHookObject
(widget) ? ((HookObject)(widget))->hooks.screen->display
: _XtWindowedAncestor(widget)->core.screen->display));
521 WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext
(widget) : ((void*)0));
522
523 LOCK_APP(app)if(app && app->lock)(*app->lock)(app);
524 request.request_mode = CWWidth(1<<2) | CWHeight(1<<3);
525 request.width = width;
526 request.height = height;
527
528 if (XtHasCallbacks(hookobj, XtNgeometryHook((char*)&XtStrings[2086])) == XtCallbackHasSome) {
529 call_data.type = XtHpreGeometry((char*)&XtStrings[2610]);
530 call_data.widget = widget;
531 call_data.request = &request;
532 XtCallCallbackList(hookobj,
533 ((HookObject)hookobj)->hooks.geometryhook_callbacks,
534 (XtPointer)&call_data);
535 call_data.result = r =
536 _XtMakeGeometryRequest(widget, &request, &reply, &junk);
537 call_data.type = XtHpostGeometry((char*)&XtStrings[2624]);
538 call_data.reply = &reply;
539 XtCallCallbackList(hookobj,
540 ((HookObject)hookobj)->hooks.geometryhook_callbacks,
541 (XtPointer)&call_data);
542 } else {
543 r = _XtMakeGeometryRequest(widget, &request, &reply, &junk);
544 }
545 if (replyWidth != NULL((void*)0)) {
546 if (r == XtGeometryAlmost && reply.request_mode & CWWidth(1<<2))
547 *replyWidth = reply.width;
548 else
549 *replyWidth = width;
550 }
551 if (replyHeight != NULL((void*)0)) {
552 if (r == XtGeometryAlmost && reply.request_mode & CWHeight(1<<3))
553 *replyHeight = reply.height;
554 else
555 *replyHeight = height;
556 }
557 UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app);
558 return ((r == XtGeometryDone) ? XtGeometryYes : r);
559} /* XtMakeResizeRequest */
560
561void XtResizeWindow(
562 Widget w)
563{
564 XtConfigureHookDataRec req;
565 Widget hookobj;
566 WIDGET_TO_APPCON(w)XtAppContext app = (w && _XtProcessLock ? XtWidgetToApplicationContext
(w) : ((void*)0));
567
568 LOCK_APP(app)if(app && app->lock)(*app->lock)(app);
569 if (XtIsRealized(w)((((((Object)(w))->object.widget_class->core_class.class_inited
& 0x04) ? (w) : _XtWindowedAncestor(w)) ->core.window
) != 0L)) {
Within the expansion of the macro 'XtIsRealized':
a
Dereference of null pointer
570 req.changes.width = w->core.width;
571 req.changes.height = w->core.height;
572 req.changes.border_width = w->core.border_width;
573 req.changeMask = CWWidth(1<<2) | CWHeight(1<<3) | CWBorderWidth(1<<4);
574 XConfigureWindow(XtDisplay(w)(((w)->core.screen)->display), XtWindow(w)((w)->core.window),
575 (unsigned) req.changeMask, &req.changes);
576 hookobj = XtHooksOfDisplay(XtDisplayOfObject(w)((((Object)(w))->object.widget_class->core_class.class_inited
& 0x04) ? (w)->core.screen->display : _XtIsHookObject
(w) ? ((HookObject)(w))->hooks.screen->display : _XtWindowedAncestor
(w)->core.screen->display));;
577 if (XtHasCallbacks(hookobj, XtNconfigureHook((char*)&XtStrings[2072])) == XtCallbackHasSome) {
578 req.type = XtHconfigure((char*)&XtStrings[2598]);
579 req.widget = w;
580 XtCallCallbackList(hookobj,
581 ((HookObject)hookobj)->hooks.confighook_callbacks,
582 (XtPointer)&req);
583 }
584 }
585 UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app);
586} /* XtResizeWindow */
587
588void XtResizeWidget(
589 Widget w,
590 _XtDimensionDimension width,
591 _XtDimensionDimension height,
592 _XtDimensionDimension borderWidth)
593{
594 XtConfigureWidget(w, w->core.x, w->core.y, width, height, borderWidth);
595} /* XtResizeWidget */
596
597void XtConfigureWidget(
598 Widget w,
599 _XtPositionPosition x,
600 _XtPositionPosition y,
601 _XtDimensionDimension width,
602 _XtDimensionDimension height,
603 _XtDimensionDimension borderWidth)
604{
605 XtConfigureHookDataRec req;
606 Widget hookobj;
607 XWindowChanges old;
608 WIDGET_TO_APPCON(w)XtAppContext app = (w && _XtProcessLock ? XtWidgetToApplicationContext
(w) : ((void*)0));
609
610 CALLGEOTAT(_XtGeoTrace(w,
611 "\"%s\" is being configured by its parent \"%s\"\n",
612 XtName(w),
613 (XtParent(w))?XtName(XtParent(w)):"Root"));
614 CALLGEOTAT(_XtGeoTab(1));
615
616 LOCK_APP(app)if(app && app->lock)(*app->lock)(app);
617 req.changeMask = 0;
618 if ((old.x = w->core.x) != x) {
619 CALLGEOTAT(_XtGeoTrace(w,"x move from %d to %d\n",w->core.x, x));
620 req.changes.x = w->core.x = x;
621 req.changeMask |= CWX(1<<0);
622 }
623
624 if ((old.y = w->core.y) != y) {
625 CALLGEOTAT(_XtGeoTrace(w,"y move from %d to %d\n",w->core.y, y));
626 req.changes.y = w->core.y = y;
627 req.changeMask |= CWY(1<<1);
628 }
629
630 if ((old.width = w->core.width) != width) {
631 CALLGEOTAT(_XtGeoTrace(w,
632 "width move from %d to %d\n",w->core.width, width));
633 req.changes.width = w->core.width = width;
634 req.changeMask |= CWWidth(1<<2);
635 }
636
637 if ((old.height = w->core.height) != height) {
638 CALLGEOTAT(_XtGeoTrace(w,
639 "height move from %d to %d\n",w->core.height, height));
640 req.changes.height = w->core.height = height;
641 req.changeMask |= CWHeight(1<<3);
642 }
643
644 if ((old.border_width = w->core.border_width) != borderWidth) {
645 CALLGEOTAT(_XtGeoTrace(w,"border_width move from %d to %d\n",
646 w->core.border_width,borderWidth ));
647 req.changes.border_width = w->core.border_width = borderWidth;
648 req.changeMask |= CWBorderWidth(1<<4);
649 }
650
651 if (req.changeMask != 0) {
652 if (XtIsRealized(w)((((((Object)(w))->object.widget_class->core_class.class_inited
& 0x04) ? (w) : _XtWindowedAncestor(w)) ->core.window
) != 0L)) {
653 if (XtIsWidget(w)(((Object)(w))->object.widget_class->core_class.class_inited
& 0x04)) {
654 CALLGEOTAT(_XtGeoTrace(w,
655 "XConfigure \"%s\"'s window\n",XtName(w)));
656 XConfigureWindow(XtDisplay(w)(((w)->core.screen)->display), XtWindow(w)((w)->core.window),
657 req.changeMask, &req.changes);
658 } else {
659 CALLGEOTAT(_XtGeoTrace(w,
660 "ClearRectObj called on \"%s\"\n",XtName(w)));
661 ClearRectObjAreas((RectObj)w, &old);
662 }
663 }
664 hookobj = XtHooksOfDisplay(XtDisplayOfObject(w)((((Object)(w))->object.widget_class->core_class.class_inited
& 0x04) ? (w)->core.screen->display : _XtIsHookObject
(w) ? ((HookObject)(w))->hooks.screen->display : _XtWindowedAncestor
(w)->core.screen->display));;
665 if (XtHasCallbacks(hookobj, XtNconfigureHook((char*)&XtStrings[2072])) == XtCallbackHasSome) {
666 req.type = XtHconfigure((char*)&XtStrings[2598]);
667 req.widget = w;
668 XtCallCallbackList(hookobj,
669 ((HookObject)hookobj)->hooks.confighook_callbacks,
670 (XtPointer)&req);
671 }
672 {
673 XtWidgetProc resize;
674
675 LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)();
676 resize = XtClass(w)((w)->core.widget_class)->core_class.resize;
677 UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)();
678 if ((req.changeMask & (CWWidth(1<<2) | CWHeight(1<<3))) &&
679 resize != (XtWidgetProc) NULL((void*)0)) {
680 CALLGEOTAT(_XtGeoTrace(w,"Resize proc is called.\n"));
681 (*resize)(w);
682 }
683 }
684 } else {
685 CALLGEOTAT(_XtGeoTrace(w,"No change in configuration\n"));
686 }
687
688 CALLGEOTAT(_XtGeoTab(-1));
689 UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app);
690} /* XtConfigureWidget */
691
692void XtMoveWidget(
693 Widget w,
694 _XtPositionPosition x,
695 _XtPositionPosition y)
696{
697 XtConfigureWidget(w, x, y, w->core.width, w->core.height,
698 w->core.border_width);
699} /* XtMoveWidget */
700
701void XtTranslateCoords(
702 register Widget w,
703 _XtPositionPosition x,
704 _XtPositionPosition y,
705 register Position *rootx, /* return */
706 register Position *rooty) /* return */
707{
708 Position garbagex, garbagey;
709 XtAppContext app = XtWidgetToApplicationContext(w);
710
711 LOCK_APP(app)if(app && app->lock)(*app->lock)(app);
712 if (rootx == NULL((void*)0)) rootx = &garbagex;
713 if (rooty == NULL((void*)0)) rooty = &garbagey;
714
715 *rootx = x;
716 *rooty = y;
717
718 for (; w != NULL((void*)0) && ! XtIsShell(w)(((Object)(w))->object.widget_class->core_class.class_inited
& 0x20); w = w->core.parent) {
719 *rootx += w->core.x + w->core.border_width;
720 *rooty += w->core.y + w->core.border_width;
721 }
722
723 if (w == NULL((void*)0))
724 XtAppWarningMsg(app,
725 "invalidShell","xtTranslateCoords",XtCXtToolkitError,
726 "Widget has no shell ancestor",
727 (String *)NULL((void*)0), (Cardinal *)NULL((void*)0));
728 else {
729 Position x, y;
730 _XtShellGetCoordinates( w, &x, &y );
731 *rootx += x + w->core.border_width;
732 *rooty += y + w->core.border_width;
733 }
734 UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app);
735}
736
737XtGeometryResult XtQueryGeometry(
738 Widget widget,
739 register XtWidgetGeometry *intended, /* parent's changes; may be NULL */
740 XtWidgetGeometry *reply) /* child's preferred geometry; never NULL */
741{
742 XtWidgetGeometry null_intended;
743 XtGeometryHandler query;
744 XtGeometryResult result;
745 WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext
(widget) : ((void*)0));
746
747 CALLGEOTAT(_XtGeoTrace(widget,
748 "\"%s\" is asking its preferred geometry to \"%s\".\n",
749 (XtParent(widget))?XtName(XtParent(widget)):"Root",
750 XtName(widget)));
751 CALLGEOTAT(_XtGeoTab(1));
752
753 LOCK_APP(app)if(app && app->lock)(*app->lock)(app);
754 LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)();
755 query = XtClass(widget)((widget)->core.widget_class)->core_class.query_geometry;
756 UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)();
757 reply->request_mode = 0;
758 if (query != NULL((void*)0)) {
759 if (intended == NULL((void*)0)) {
760 null_intended.request_mode = 0;
761 intended = &null_intended;
762#ifdef XT_GEO_TATTLER
763 CALLGEOTAT(_XtGeoTrace(widget,"without any constraint.\n"));
764 } else {
765 CALLGEOTAT(_XtGeoTrace(widget,
766 "with the following constraints:\n"));
767
768 if (intended->request_mode & CWX(1<<0)) {
769 CALLGEOTAT(_XtGeoTrace(widget," x = %d\n",intended->x));
770 }
771 if (intended->request_mode & CWY(1<<1)) {
772 CALLGEOTAT(_XtGeoTrace(widget," y = %d\n",intended->y));
773 }
774 if (intended->request_mode & CWWidth(1<<2)) {
775 CALLGEOTAT(_XtGeoTrace(widget,
776 " width = %d\n",intended->width));
777 }
778 if (intended->request_mode & CWHeight(1<<3)) {
779 CALLGEOTAT(_XtGeoTrace(widget,
780 " height = %d\n",intended->height));
781 }
782 if (intended->request_mode & CWBorderWidth(1<<4)) {
783 CALLGEOTAT(_XtGeoTrace(widget,
784 " border_width = %d\n",intended->border_width));
785 }
786#endif
787 }
788
789 result = (*query) (widget, intended, reply);
790 }
791 else {
792 CALLGEOTAT(_XtGeoTrace(widget,"\"%s\" has no QueryGeometry proc, return the current state\n",XtName(widget)));
793
794 result = XtGeometryYes;
795 }
796
797#ifdef XT_GEO_TATTLER
798#define FillIn(mask, field) \
799 if (!(reply->request_mode & mask)) {\
800 reply->field = widget->core.field;\
801 _XtGeoTrace(widget," using core %s = %d.\n","field",\
802 widget->core.field);\
803 } else {\
804 _XtGeoTrace(widget," replied %s = %d\n","field",\
805 reply->field);\
806 }
807#else
808#define FillIn(mask, field) \
809 if (!(reply->request_mode & mask)) reply->field = widget->core.field;
810#endif
811
812 FillIn(CWX(1<<0), x);
813 FillIn(CWY(1<<1), y);
814 FillIn(CWWidth(1<<2), width);
815 FillIn(CWHeight(1<<3), height);
816 FillIn(CWBorderWidth(1<<4), border_width);
817
818 CALLGEOTAT(_XtGeoTab(-1));
819#undef FillIn
820
821 if (!(reply->request_mode & CWStackMode(1<<6)))
822 reply->stack_mode = XtSMDontChange5;
823 UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app);
824 return result;
825}