From d65b4c94a92498a770e3e5c2497bf5abb921c522 Mon Sep 17 00:00:00 2001 From: marha Date: Thu, 5 Nov 2009 18:03:37 +0000 Subject: Added libXt-1.0.7 --- libXt/src/Callback.c | 692 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 692 insertions(+) create mode 100644 libXt/src/Callback.c (limited to 'libXt/src/Callback.c') diff --git a/libXt/src/Callback.c b/libXt/src/Callback.c new file mode 100644 index 000000000..03aae5274 --- /dev/null +++ b/libXt/src/Callback.c @@ -0,0 +1,692 @@ +/* $Xorg: Callback.c,v 1.4 2001/02/09 02:03:54 xorgcvs Exp $ */ + +/*********************************************************** +Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts, +Copyright 1993 by Sun Microsystems, Inc. Mountain View, CA. + + All Rights Reserved + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, +provided that the above copyright notice appear in all copies and that +both that copyright notice and this permission notice appear in +supporting documentation, and that the names of Digital or Sun not be +used in advertising or publicity pertaining to distribution of the +software without specific, written prior permission. + +DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING +ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL +DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS +SOFTWARE. + +SUN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, +INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT- +NESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SUN BE LI- +ABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR +PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR +OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH +THE USE OR PERFORMANCE OF THIS SOFTWARE. + +******************************************************************/ + +/* + +Copyright 1987, 1988, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from The Open Group. + +*/ +/* $XFree86: xc/lib/Xt/Callback.c,v 1.8 2001/12/14 19:56:08 dawes Exp $ */ + +#ifdef HAVE_CONFIG_H +#include +#endif +#include "IntrinsicI.h" + +static String XtNinvalidCallbackList = "invalidCallbackList"; +static String XtNxtAddCallback = "xtAddCallback"; +static String XtNxtRemoveCallback = "xtRemoveCallback"; +static String XtNxtRemoveAllCallback = "xtRemoveAllCallback"; +static String XtNxtCallCallback = "xtCallCallback"; + +/* However it doesn't contain a final NULL record */ +#define ToList(p) ((XtCallbackList) ((p)+1)) + +static InternalCallbackList* FetchInternalList( + Widget widget, + _Xconst char *name) +{ + XrmQuark quark; + int n; + CallbackTable offsets; + InternalCallbackList* retval = NULL; + + quark = StringToQuark(name); + LOCK_PROCESS; + offsets = (CallbackTable) + widget->core.widget_class->core_class.callback_private; + + for (n = (int)(long) *(offsets++); --n >= 0; offsets++) + if (quark == (*offsets)->xrm_name) { + retval = (InternalCallbackList *) + ((char *) widget - (*offsets)->xrm_offset - 1); + break; + } + UNLOCK_PROCESS; + return retval; +} + + +void _XtAddCallback( + InternalCallbackList* callbacks, + XtCallbackProc callback, + XtPointer closure) +{ + register InternalCallbackList icl; + register XtCallbackList cl; + register int count; + + icl = *callbacks; + count = icl ? icl->count : 0; + + if (icl && icl->call_state) { + icl->call_state |= _XtCBFreeAfterCalling; + icl = (InternalCallbackList) + __XtMalloc(sizeof(InternalCallbackRec) + + sizeof(XtCallbackRec) * (count + 1)); + (void) memmove((char *)ToList(icl), (char *)ToList(*callbacks), + sizeof(XtCallbackRec) * count); + } else { + icl = (InternalCallbackList) + XtRealloc((char *) icl, sizeof(InternalCallbackRec) + + sizeof(XtCallbackRec) * (count + 1)); + } + *callbacks = icl; + icl->count = count + 1; + icl->is_padded = 0; + icl->call_state = 0; + cl = ToList(icl) + count; + cl->callback = callback; + cl->closure = closure; +} /* _XtAddCallback */ + +void _XtAddCallbackOnce( + register InternalCallbackList*callbacks, + XtCallbackProc callback, + XtPointer closure) +{ + register XtCallbackList cl = ToList(*callbacks); + register int i; + + for (i=(*callbacks)->count; --i >= 0; cl++) + if (cl->callback == callback && cl->closure == closure) + return; + + _XtAddCallback(callbacks, callback, closure); +} /* _XtAddCallbackOnce */ + +void XtAddCallback( + Widget widget, + _Xconst char* name, + XtCallbackProc callback, + XtPointer closure + ) +{ + InternalCallbackList *callbacks; + Widget hookobj; + XtAppContext app = XtWidgetToApplicationContext(widget); + + LOCK_APP(app); + callbacks = FetchInternalList(widget, name); + if (!callbacks) { + XtAppWarningMsg(app, + XtNinvalidCallbackList,XtNxtAddCallback,XtCXtToolkitError, + "Cannot find callback list in XtAddCallback", + (String *)NULL, (Cardinal *)NULL); + UNLOCK_APP(app); + return; + } + _XtAddCallback(callbacks, callback, closure); + if (!_XtIsHookObject(widget)) { + hookobj = XtHooksOfDisplay(XtDisplayOfObject(widget)); + if (XtHasCallbacks(hookobj, XtNchangeHook) == XtCallbackHasSome) { + XtChangeHookDataRec call_data; + + call_data.type = XtHaddCallback; + call_data.widget = widget; + call_data.event_data = (XtPointer) name; + XtCallCallbackList(hookobj, + ((HookObject)hookobj)->hooks.changehook_callbacks, + (XtPointer)&call_data); + } + } + UNLOCK_APP(app); +} /* XtAddCallback */ + +/* ARGSUSED */ +static void AddCallbacks( + Widget widget, + InternalCallbackList *callbacks, + XtCallbackList newcallbacks) +{ + register InternalCallbackList icl; + register int i, j; + register XtCallbackList cl; + + icl = *callbacks; + i = icl ? icl->count : 0; + for (j=0, cl = newcallbacks; cl->callback; cl++, j++); + if (icl && icl->call_state) { + icl->call_state |= _XtCBFreeAfterCalling; + icl = (InternalCallbackList) __XtMalloc(sizeof(InternalCallbackRec) + + sizeof(XtCallbackRec) * (i+j)); + (void) memmove((char *)ToList(*callbacks), (char *)ToList(icl), + sizeof(XtCallbackRec) * i); + } else { + icl = (InternalCallbackList) XtRealloc((char *) icl, + sizeof(InternalCallbackRec) + + sizeof(XtCallbackRec) * (i+j)); + } + *callbacks = icl; + icl->count = i+j; + icl->is_padded = 0; + icl->call_state = 0; + for (cl = ToList(icl) + i; --j >= 0; ) + *cl++ = *newcallbacks++; +} /* AddCallbacks */ + +void XtAddCallbacks( + Widget widget, + _Xconst char* name, + XtCallbackList xtcallbacks + ) +{ + InternalCallbackList* callbacks; + Widget hookobj; + XtAppContext app = XtWidgetToApplicationContext(widget); + + LOCK_APP(app); + callbacks = FetchInternalList(widget, name); + if (!callbacks) { + XtAppWarningMsg(app, + XtNinvalidCallbackList,XtNxtAddCallback,XtCXtToolkitError, + "Cannot find callback list in XtAddCallbacks", + (String *)NULL, (Cardinal *)NULL); + UNLOCK_APP(app); + return; + } + AddCallbacks(widget, callbacks, xtcallbacks); + hookobj = XtHooksOfDisplay(XtDisplayOfObject(widget)); + if (XtHasCallbacks(hookobj, XtNchangeHook) == XtCallbackHasSome) { + XtChangeHookDataRec call_data; + + call_data.type = XtHaddCallbacks; + call_data.widget = widget; + call_data.event_data = (XtPointer) name; + XtCallCallbackList(hookobj, + ((HookObject)hookobj)->hooks.changehook_callbacks, + (XtPointer)&call_data); + } + UNLOCK_APP(app); +} /* XtAddCallbacks */ + +void _XtRemoveCallback ( + InternalCallbackList *callbacks, + XtCallbackProc callback, + XtPointer closure) +{ + register InternalCallbackList icl; + register int i, j; + register XtCallbackList cl, ncl, ocl; + + icl = *callbacks; + if (!icl) return; + + cl = ToList(icl); + for (i=icl->count; --i >= 0; cl++) { + if (cl->callback == callback && cl->closure == closure) { + if (icl->call_state) { + icl->call_state |= _XtCBFreeAfterCalling; + if (icl->count == 1) { + *callbacks = NULL; + } else { + j = icl->count - i - 1; + ocl = ToList(icl); + icl = (InternalCallbackList) + __XtMalloc(sizeof(InternalCallbackRec) + + sizeof(XtCallbackRec) * (i + j)); + icl->count = i + j; + icl->is_padded = 0; + icl->call_state = 0; + ncl = ToList(icl); + while (--j >= 0) + *ncl++ = *ocl++; + while (--i >= 0) + *ncl++ = *++cl; + *callbacks = icl; + } + } else { + if (--icl->count) { + ncl = cl + 1; + while (--i >= 0) + *cl++ = *ncl++; + icl = (InternalCallbackList) + XtRealloc((char *) icl, sizeof(InternalCallbackRec) + + sizeof(XtCallbackRec) * icl->count); + icl->is_padded = 0; + *callbacks = icl; + } else { + XtFree((char *) icl); + *callbacks = NULL; + } + } + return; + } + } +} /* _XtRemoveCallback */ + +void XtRemoveCallback ( + Widget widget, + _Xconst char* name, + XtCallbackProc callback, + XtPointer closure + ) +{ + InternalCallbackList *callbacks; + Widget hookobj; + XtAppContext app = XtWidgetToApplicationContext(widget); + + LOCK_APP(app); + callbacks = FetchInternalList(widget, name); + if (!callbacks) { + XtAppWarningMsg(app, + XtNinvalidCallbackList,XtNxtRemoveCallback,XtCXtToolkitError, + "Cannot find callback list in XtRemoveCallback", + (String *)NULL, (Cardinal *)NULL); + UNLOCK_APP(app); + return; + } + _XtRemoveCallback(callbacks, callback, closure); + hookobj = XtHooksOfDisplay(XtDisplayOfObject(widget)); + if (XtHasCallbacks(hookobj, XtNchangeHook) == XtCallbackHasSome) { + XtChangeHookDataRec call_data; + + call_data.type = XtHremoveCallback; + call_data.widget = widget; + call_data.event_data = (XtPointer) name; + XtCallCallbackList(hookobj, + ((HookObject)hookobj)->hooks.changehook_callbacks, + (XtPointer)&call_data); + } + UNLOCK_APP(app); +} /* XtRemoveCallback */ + + +void XtRemoveCallbacks ( + Widget widget, + _Xconst char* name, + XtCallbackList xtcallbacks) +{ + InternalCallbackList *callbacks; + Widget hookobj; + int i; + InternalCallbackList icl; + XtCallbackList cl, ccl, rcl; + XtAppContext app = XtWidgetToApplicationContext(widget); + + LOCK_APP(app); + callbacks = FetchInternalList(widget, name); + if (!callbacks) { + XtAppWarningMsg(app, + XtNinvalidCallbackList,XtNxtRemoveCallback,XtCXtToolkitError, + "Cannot find callback list in XtRemoveCallbacks", + (String *)NULL, (Cardinal *)NULL); + UNLOCK_APP(app); + return; + } + + icl = *callbacks; + if (!icl) { + UNLOCK_APP(app); + return; + } + + i = icl->count; + cl = ToList(icl); + if (icl->call_state) { + icl->call_state |= _XtCBFreeAfterCalling; + icl = (InternalCallbackList)__XtMalloc(sizeof(InternalCallbackRec) + + sizeof(XtCallbackRec) * i); + icl->count = i; + icl->call_state = 0; + } + ccl = ToList(icl); + while (--i >= 0) { + *ccl++ = *cl; + for (rcl=xtcallbacks; rcl->callback; rcl++) { + if (cl->callback == rcl->callback && cl->closure == rcl->closure) { + ccl--; + icl->count--; + break; + } + } + cl++; + } + if (icl->count) { + icl = (InternalCallbackList) + XtRealloc((char *)icl, (sizeof(InternalCallbackRec) + + sizeof(XtCallbackRec) * icl->count)); + icl->is_padded = 0; + *callbacks = icl; + } else { + XtFree((char *)icl); + *callbacks = NULL; + } + hookobj = XtHooksOfDisplay(XtDisplayOfObject(widget)); + if (XtHasCallbacks(hookobj, XtNchangeHook) == XtCallbackHasSome) { + XtChangeHookDataRec call_data; + + call_data.type = XtHremoveCallbacks; + call_data.widget = widget; + call_data.event_data = (XtPointer) name; + XtCallCallbackList(hookobj, + ((HookObject)hookobj)->hooks.changehook_callbacks, + (XtPointer)&call_data); + } + UNLOCK_APP(app); +} /* XtRemoveCallbacks */ + + +void _XtRemoveAllCallbacks ( + InternalCallbackList *callbacks) +{ + register InternalCallbackList icl = *callbacks; + + if (icl) { + if (icl->call_state) + icl->call_state |= _XtCBFreeAfterCalling; + else + XtFree((char *) icl); + *callbacks = NULL; + } +} /* _XtRemoveAllCallbacks */ + +void XtRemoveAllCallbacks( + Widget widget, + _Xconst char* name) +{ + InternalCallbackList *callbacks; + Widget hookobj; + XtAppContext app = XtWidgetToApplicationContext(widget); + + LOCK_APP(app); + callbacks = FetchInternalList(widget, name); + if (!callbacks) { + XtAppWarningMsg(app, + XtNinvalidCallbackList,XtNxtRemoveAllCallback,XtCXtToolkitError, + "Cannot find callback list in XtRemoveAllCallbacks", + (String *)NULL, (Cardinal *)NULL); + UNLOCK_APP(app); + return; + } + _XtRemoveAllCallbacks(callbacks); + hookobj = XtHooksOfDisplay(XtDisplayOfObject(widget)); + if (XtHasCallbacks(hookobj, XtNchangeHook) == XtCallbackHasSome) { + XtChangeHookDataRec call_data; + + call_data.type = XtHremoveAllCallbacks; + call_data.widget = widget; + call_data.event_data = (XtPointer) name; + XtCallCallbackList(hookobj, + ((HookObject)hookobj)->hooks.changehook_callbacks, + (XtPointer)&call_data); + } + UNLOCK_APP(app); +} /* XtRemoveAllCallbacks */ + +InternalCallbackList _XtCompileCallbackList( + XtCallbackList xtcallbacks) +{ + register int n; + register XtCallbackList xtcl, cl; + register InternalCallbackList callbacks; + + for (n=0, xtcl=xtcallbacks; xtcl->callback; n++, xtcl++) {}; + if (n == 0) return (InternalCallbackList) NULL; + + callbacks = (InternalCallbackList) __XtMalloc(sizeof(InternalCallbackRec) + + sizeof(XtCallbackRec) * n); + callbacks->count = n; + callbacks->is_padded = 0; + callbacks->call_state = 0; + cl = ToList(callbacks); + while (--n >= 0) + *cl++ = *xtcallbacks++; + return(callbacks); +} /* _XtCompileCallbackList */ + + +XtCallbackList _XtGetCallbackList( + InternalCallbackList *callbacks) +{ + register int i; + register InternalCallbackList icl; + register XtCallbackList cl, ocl; + + icl = *callbacks; + if (!icl) { + static XtCallbackRec emptyList[1] = { {NULL, NULL} }; + return (XtCallbackList)emptyList; + } + if (icl->is_padded) + return ToList(icl); + i = icl->count; + if (icl->call_state) { + icl->call_state |= _XtCBFreeAfterCalling; + ocl = ToList(icl); + icl = (InternalCallbackList) __XtMalloc(sizeof(InternalCallbackRec) + + sizeof(XtCallbackRec) * (i+1)); + icl->count = i; + icl->call_state = 0; + cl = ToList(icl); + while (--i >= 0) + *cl++ = *ocl++; + } else { + icl = (InternalCallbackList) XtRealloc((char *)icl, + sizeof(InternalCallbackRec) + + sizeof(XtCallbackRec) * (i+1)); + cl = ToList(icl) + i; + } + icl->is_padded = 1; + cl->callback = (XtCallbackProc) NULL; + cl->closure = NULL; + *callbacks = icl; + return ToList(icl); +} + +void XtCallCallbacks( + Widget widget, + _Xconst char* name, + XtPointer call_data + ) +{ + InternalCallbackList *callbacks; + InternalCallbackList icl; + XtCallbackList cl; + int i; + char ostate; + XtAppContext app = XtWidgetToApplicationContext(widget); + + LOCK_APP(app); + callbacks = FetchInternalList(widget, name); + if (!callbacks) { + XtAppWarningMsg(app, + XtNinvalidCallbackList,XtNxtCallCallback,XtCXtToolkitError, + "Cannot find callback list in XtCallCallbacks", + (String *)NULL, (Cardinal *)NULL); + UNLOCK_APP(app); + return; + } + + icl = *callbacks; + if (!icl) { + UNLOCK_APP(app); + return; + } + cl = ToList(icl); + if (icl->count == 1) { + (*cl->callback) (widget, cl->closure, call_data); + UNLOCK_APP(app); + return; + } + ostate = icl->call_state; + icl->call_state = _XtCBCalling; + for (i = icl->count; --i >= 0; cl++) + (*cl->callback) (widget, cl->closure, call_data); + if (ostate) + icl->call_state |= ostate; + else if (icl->call_state & _XtCBFreeAfterCalling) + XtFree((char *)icl); + else + icl->call_state = ostate; + UNLOCK_APP(app); +} /* XtCallCallbacks */ + + +XtCallbackStatus XtHasCallbacks( + Widget widget, + _Xconst char* callback_name + ) +{ + InternalCallbackList *callbacks; + XtCallbackStatus retval = XtCallbackHasSome; + WIDGET_TO_APPCON(widget); + + LOCK_APP(app); + callbacks = FetchInternalList(widget, callback_name); + if (!callbacks) + retval = XtCallbackNoList; + else if (!*callbacks) + retval = XtCallbackHasNone; + UNLOCK_APP(app); + return retval; +} /* XtHasCallbacks */ + + +void XtCallCallbackList( + Widget widget, + XtCallbackList callbacks, + XtPointer call_data) +{ + register InternalCallbackList icl; + register XtCallbackList cl; + register int i; + char ostate; + WIDGET_TO_APPCON(widget); + + LOCK_APP(app); + if (!callbacks) { + UNLOCK_APP(app); + return; + } + icl = (InternalCallbackList)callbacks; + cl = ToList(icl); + if (icl->count == 1) { + (*cl->callback) (widget, cl->closure, call_data); + UNLOCK_APP(app); + return; + } + ostate = icl->call_state; + icl->call_state = _XtCBCalling; + for (i = icl->count; --i >= 0; cl++) + (*cl->callback) (widget, cl->closure, call_data); + if (ostate) + icl->call_state |= ostate; + else if (icl->call_state & _XtCBFreeAfterCalling) + XtFree((char *)icl); + else + icl->call_state = 0; + UNLOCK_APP(app); +} /* XtCallCallbackList */ + +void _XtPeekCallback( + Widget widget, + XtCallbackList callbacks, + XtCallbackProc *callback, + XtPointer *closure) +{ + register InternalCallbackList icl = (InternalCallbackList) callbacks; + register XtCallbackList cl; + + if (!callbacks) { + *callback = (XtCallbackProc) NULL; + return; + } + cl = ToList(icl); + *callback = cl->callback; + *closure = cl->closure; + return; +} + +void _XtCallConditionalCallbackList( + Widget widget, + XtCallbackList callbacks, + XtPointer call_data, + _XtConditionProc cond_proc) +{ + register InternalCallbackList icl; + register XtCallbackList cl; + register int i; + char ostate; + WIDGET_TO_APPCON(widget); + + LOCK_APP(app); + if (!callbacks) { + UNLOCK_APP(app); + return; + } + icl = (InternalCallbackList)callbacks; + cl = ToList(icl); + if (icl->count == 1) { + (*cl->callback) (widget, cl->closure, call_data); + (void) (*cond_proc)(call_data); + UNLOCK_APP(app); + return; + } + ostate = icl->call_state; + icl->call_state = _XtCBCalling; + for (i = icl->count; --i >= 0; cl++) { + (*cl->callback) (widget, cl->closure, call_data); + if (! (*cond_proc)(call_data)) + break; + } + if (ostate) + icl->call_state |= ostate; + else if (icl->call_state & _XtCBFreeAfterCalling) + XtFree((char *)icl); + else + icl->call_state = 0; + UNLOCK_APP(app); +} -- cgit v1.2.3