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/*
* Miscellaneous X utility routines
*
* $Id: Xju.c,v 1.3 1995/01/04 17:28:33 jdd Exp $
*/
#include <varargs.h>
#include <X11/Intrinsic.h>
#include <X11/StringDefs.h>
extern Widget root;
void SetArgs(va_alist)
va_dcl
{
/* SetArgs takes a variable number of arguments, of the form
of char *argtype, XtArgVal value pairs. This ends with
a NULL. SetArgs then returns the corresponding argument list.
SetArgs' second argument should be a pointer to a Cardinal,
which will contain the number of args in the new arglist,
and its first argument should be a pointer to an Arg
pointer which will be set to the returned arg list */
va_list argindex;
unsigned i;
Arg **arglist;
Cardinal *count;
va_start(argindex);
/* Get first two arguments */
arglist = va_arg(argindex, Arg **);
count = va_arg(argindex, Cardinal *);
/* Count number of passed Arglist pairs */
*count = 0;
while(1){
if(NULL == va_arg(argindex, char *))
break;
(void) va_arg(argindex, XtArgVal);
(*count)++;
}
va_end(argindex);
/* Allocate sufficient memory for new arg list */
*arglist = (Arg *)XtMalloc((*count)*sizeof(Arg));
/* Set new Arg list */
va_start(argindex);
/* skip past first two arguments */
(void) va_arg(argindex, Arg **);
(void) va_arg(argindex, int *);
for(i=0;i<*count;i++){
XtSetArg((*arglist)[i], va_arg(argindex, char *),
va_arg(argindex, XtArgVal));
}
va_end(argindex);
}
Widget CreateWidget(va_alist)
va_dcl
{
/* CreateWidget takes a variable number of arguments,
the first of which are the following:
widget name, widget class, widget parent.
All following arguments are char *argtype, XtArgVal pairs. The
last argument must be a NULL.
CreateWidget will construct a widget of the given class,
with the given name and parent. An argument list for the
widget constructed out of the char *argtype, XtArgVal pairs
will be created as well. CreateWidget will call
XtCreateManagedWidget, and return the resulting widget id */
va_list argindex;
unsigned i;
Arg *arglist;
Cardinal count;
Widget w, parent;
char *name;
WidgetClass class;
va_start(argindex);
/* Get first three arguments */
name = va_arg(argindex, char *);
class = va_arg(argindex, WidgetClass);
parent = va_arg(argindex, Widget);
/* Count number of passed Arglist pairs */
count = 0;
while(1){
if (NULL == va_arg(argindex, char *))
break;
(void) va_arg(argindex, XtArgVal);
count++;
}
va_end(argindex);
/* Allocate sufficient memory for new arg list */
arglist = (Arg *)XtMalloc((count)*sizeof(Arg));
/* Set new Arg list */
va_start(argindex);
/* skip past first three arguments */
(void) va_arg(argindex, char *);
(void) va_arg(argindex, WidgetClass);
(void) va_arg(argindex, Widget);
for(i=0;i<count;i++){
XtSetArg(arglist[i], va_arg(argindex, char *),
va_arg(argindex, XtArgVal));
}
va_end(argindex);
if(parent == NULL) (void) printf("%s\n", name);
w = XtCreateManagedWidget(name, class, parent,
arglist, count);
XtFree((char *)arglist);
return(w);
}
void QueryWidget(va_alist)
va_dcl
{
/* QueryWidget takes a variable number of arguments,
the first of which is the widget being queried.
All following arguments are char *argtype, *XtArgVal pairs. The
last argument must be a NULL.
QueryWidget will query the specified widget using XtGetValues,
and will return the results in the same way as XtGetValues. */
va_list argindex;
unsigned i;
Arg *arglist;
Cardinal count;
Widget w;
va_start(argindex);
/* Get first argument */
w = va_arg(argindex, Widget);
/* Count number of passed Arglist pairs */
count = 0;
while(1){
if (NULL == va_arg(argindex, char *))
break;
(void) va_arg(argindex, XtArgVal);
count++;
}
va_end(argindex);
/* Allocate sufficient memory for new arg list */
arglist = (Arg *)XtMalloc(count*sizeof(Arg));
/* Set new Arg list */
va_start(argindex);
/* skip past first argument */
(void) va_arg(argindex, Widget);
for(i=0;i<count;i++){
XtSetArg(arglist[i], va_arg(argindex, char *),
va_arg(argindex, XtArgVal));
}
va_end(argindex);
XtGetValues(w, arglist, count);
XtFree((char *)arglist);
}
void ConfigureWidget(va_alist)
va_dcl
{
/* ConfigureWidget takes a variable number of arguments, the
first of which is the widget being queried. All following arguments
are char *argtype, XtArgVal pairs. The last argument must be a
NULL.
ConfigureWidget will configure the specified widget using
XtSetValues. */
va_list argindex;
unsigned i;
Arg *arglist;
Cardinal count;
Widget w;
va_start(argindex);
/* Get first argument */
w = va_arg(argindex, Widget);
/* Count number of passed Arglist pairs */
count = 0;
while(1){
if (NULL== va_arg(argindex, char *))
break;
(void) va_arg(argindex, XtArgVal);
count++;
}
va_end(argindex);
/* Allocate sufficient memory for new arg list */
arglist = (Arg *)XtMalloc(count*sizeof(Arg));
/* Set new Arg list */
va_start(argindex);
/* skip past first argument */
(void) va_arg(argindex, Widget);
for(i=0;i<count;i++){
XtSetArg(arglist[i], va_arg(argindex, char *),
va_arg(argindex, XtArgVal));
}
va_end(argindex);
XtSetValues(w, arglist, count);
XtFree((char *)arglist);
}
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