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/*
* Motif Tools Library, Version 3.1
* $Id$
*
* Written by David Flanagan.
* Copyright (c) 1992-2001 by David Flanagan.
* All Rights Reserved. See the file COPYRIGHT for details.
* This is open source software. See the file LICENSE for details.
* There is no warranty for this software. See NO_WARRANTY for details.
*
* $Log$
* Revision 1.1.1.1 2001/07/18 11:06:03 root
* Initial checkin.
*
* Revision 1.2 2001/06/12 16:25:28 andre
* *** empty log message ***
*
*
*/
#include <Xmt/Xmt.h>
#include <Xmt/ProceduresP.h>
#include <Xmt/Hash.h>
static XmtHashTable XmtProcedureTable = NULL;
XrmQuark _XmtQCallbackWidget = NULLQUARK;
XrmQuark _XmtQCallbackData = NULLQUARK;
XrmQuark _XmtQCallbackAppContext = NULLQUARK;
XrmQuark _XmtQCallbackWindow = NULLQUARK;
XrmQuark _XmtQCallbackDisplay = NULLQUARK;
XrmQuark _XmtQCallbackUnused = NULLQUARK;
#if NeedFunctionPrototypes
void XmtRegisterProcedures(XmtProcedureInfo *procedures,
Cardinal num_procedures)
#else
void XmtRegisterProcedures(procedures, num_procedures)
XmtProcedureInfo *procedures;
Cardinal num_procedures;
#endif
{
XrmQuark nameq, q;
int i,j;
int num_args;
/* one time initialization */
if (XmtProcedureTable == NULL){
XmtProcedureTable = XmtHashTableCreate(4);
_XmtQCallbackData = XrmPermStringToQuark(XmtRCallbackData);
_XmtQCallbackWidget = XrmPermStringToQuark(XmtRCallbackWidget);
_XmtQCallbackAppContext = XrmPermStringToQuark(XmtRCallbackAppContext);
_XmtQCallbackWindow = XrmPermStringToQuark(XmtRCallbackWindow);
_XmtQCallbackDisplay = XrmPermStringToQuark(XmtRCallbackDisplay);
_XmtQCallbackUnused = XrmPermStringToQuark(XmtRCallbackUnused);
}
for(i = 0; i < num_procedures; i++) {
XmtProcedureInfo *p;
/* quarkify the procedure name */
nameq = XrmStringToQuark(procedures[i].name);
/* check if this procedure has been registered before */
if (XmtHashTableLookup(XmtProcedureTable, (XtPointer) nameq,
(XtPointer *) &p)) {
/* and if so, whether it was registered with the same value */
if (p == &procedures[i]) {
XmtWarningMsg("XmtRegisterProcedures", "procedure",
"multiple registration of procedure %s ignored.",
procedures[i].name);
/*
* We've don't reregister it here, because the procedure
* fields have already been quarkified, and doing it again
* will cause chaos. Thanks to Ulrich Ring.
*/
continue;
}
}
/* figure out how many args this proc has. */
for(num_args = 0, j=0; j < XmtMAX_PROCEDURE_ARGS; j++) {
if (procedures[i].argument_types[j] != NULL)
num_args = j+1;
}
/*
* quarkify the argument types for each of those arguments,
* and count the # that are not automatically passed.
* Note that a NULL argument type will be turned into the
* internal _XmtQCallbackUnused type, and NULL will always be
* be passed to that argument.
*/
procedures[i].expected_args = 0;
for(j=0; j < num_args; j++) {
if (procedures[i].argument_types[j] == NULL)
procedures[i].argument_types[j] = (String) _XmtQCallbackUnused;
else {
procedures[i].argument_types[j] =
(String)XrmStringToQuark(procedures[i].argument_types[j]);
q = (XrmQuark) procedures[i].argument_types[j];
if ((q != _XmtQCallbackWidget) &&
(q != _XmtQCallbackData) &&
(q != _XmtQCallbackAppContext) &&
(q != _XmtQCallbackWindow) &&
(q != _XmtQCallbackDisplay) &&
(q != _XmtQCallbackUnused))
procedures[i].expected_args++;
}
}
/* quarkify the return type */
procedures[i].return_type =
(String)XrmStringToQuark(procedures[i].return_type);
/* assoicate procedure with name in the table */
XmtHashTableStore(XmtProcedureTable,
(XtPointer)nameq,
(XtPointer)&procedures[i]);
}
}
#if NeedFunctionPrototypes
void XmtRegisterCallbackProcedure(StringConst name, XtCallbackProc proc,
StringConst type)
#else
void XmtRegisterCallbackProcedure(name, proc, type)
StringConst name;
XtCallbackProc proc;
StringConst type;
#endif
{
XmtProcedureInfo *info = XtNew(XmtProcedureInfo); /* never freed */
int i;
info->name = name;
info->function = (XmtProcedure) proc;
info->argument_types[0] = XmtRCallbackWidget;
info->argument_types[1] = type;
info->argument_types[2] = XmtRCallbackData;
for(i = 3; i < XmtMAX_PROCEDURE_ARGS; i++)
info->argument_types[i] = NULL;
info->return_type = NULL;
XmtRegisterProcedures(info, (Cardinal) 1);
}
#if NeedVarargsPrototypes
void XmtVaRegisterCallbackProcedures(StringConst name, XtCallbackProc proc,
StringConst type, ...)
#else
void XmtVaRegisterCallbackProcedures(name, proc, type, va_alist)
StringConst name;
XtCallbackProc proc;
StringConst type;
va_dcl
#endif
{
va_list var;
XmtRegisterCallbackProcedure(name, proc, type);
Va_start(var, type);
while((name = va_arg(var, StringConst)) != NULL) {
proc = va_arg(var, XtCallbackProc);
type = va_arg(var, StringConst);
XmtRegisterCallbackProcedure(name, proc, type);
}
va_end(var);
}
#if NeedFunctionPrototypes
XmtProcedureInfo *XmtLookupProcedure(StringConst name)
#else
XmtProcedureInfo *XmtLookupProcedure(name)
StringConst name;
#endif
{
XrmQuark q;
XmtProcedureInfo *p;
if (XmtProcedureTable == NULL) return NULL;
q = XrmStringToQuark(name);
if (XmtHashTableLookup(XmtProcedureTable,
(XtPointer) q,
(XtPointer *) &p))
return p;
else
return NULL;
}
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