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/* $XConsortium: Atoms.c,v 1.15 91/06/30 17:49:57 rws Exp $
*
* Copyright 1988 by the Massachusetts Institute of Technology
*
* 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, and that the name of M.I.T. not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. M.I.T. makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL M.I.T.
* 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.
*
*/
/*
* This file contains routines to cache atoms, avoiding multiple
* server round-trips. Not so useful now that Xlib caches them.
*
* Public entry points:
*
* XmuMakeAtom creates & initializes an opaque AtomRec
* XmuInternAtom fetches an Atom from cache or Display
* XmuInternStrings fetches multiple Atoms as strings
* XmuGetAtomName returns name of an Atom
* XmuNameOfAtom returns name from an AtomPtr
*/
#include <X11/Intrinsic.h>
#include "Atoms.h"
typedef struct _DisplayRec {
struct _DisplayRec* next;
Display *dpy;
Atom atom;
} DisplayRec;
struct _AtomRec {
char *name;
DisplayRec* head;
};
#ifdef SUNSHLIB
#define STATIC
#else
#define STATIC static
#endif
#if __STDC__ && !defined(UNIXCPP)
#define DeclareAtom(atom,text) \
STATIC struct _AtomRec __##atom = { text, NULL }; \
AtomPtr _##atom = &__##atom;
#else
#define DeclareAtom(atom,text) \
STATIC struct _AtomRec __/**/atom = { text, NULL }; \
AtomPtr _/**/atom = &__/**/atom;
#endif
DeclareAtom(XA_ATOM_PAIR, "ATOM_PAIR" )
DeclareAtom(XA_CHARACTER_POSITION, "CHARACTER_POSITION" )
DeclareAtom(XA_CLASS, "CLASS" )
DeclareAtom(XA_CLIENT_WINDOW, "CLIENT_WINDOW" )
DeclareAtom(XA_CLIPBOARD, "CLIPBOARD" )
DeclareAtom(XA_COMPOUND_TEXT, "COMPOUND_TEXT" )
DeclareAtom(XA_DECNET_ADDRESS, "DECNET_ADDRESS" )
DeclareAtom(XA_DELETE, "DELETE" )
DeclareAtom(XA_FILENAME, "FILENAME" )
DeclareAtom(XA_HOSTNAME, "HOSTNAME" )
DeclareAtom(XA_IP_ADDRESS, "IP_ADDRESS" )
DeclareAtom(XA_LENGTH, "LENGTH" )
DeclareAtom(XA_LIST_LENGTH, "LIST_LENGTH" )
DeclareAtom(XA_NAME, "NAME" )
DeclareAtom(XA_NET_ADDRESS, "NET_ADDRESS" )
DeclareAtom(XA_NULL, "NULL" )
DeclareAtom(XA_OWNER_OS, "OWNER_OS" )
DeclareAtom(XA_SPAN, "SPAN" )
DeclareAtom(XA_TARGETS, "TARGETS" )
DeclareAtom(XA_TEXT, "TEXT" )
DeclareAtom(XA_TIMESTAMP, "TIMESTAMP" )
DeclareAtom(XA_USER, "USER" )
/******************************************************************
Public procedures
******************************************************************/
#if NeedFunctionPrototypes
AtomPtr XmuMakeAtom(_Xconst char *name)
#else
AtomPtr XmuMakeAtom(name)
char* name;
#endif
{
AtomPtr ptr = XtNew(struct _AtomRec);
ptr->name = (char *) name;
ptr->head = NULL;
return ptr;
}
char* XmuNameOfAtom(atom_ptr)
AtomPtr atom_ptr;
{
return atom_ptr->name;
}
Atom XmuInternAtom(d, atom_ptr)
Display *d;
AtomPtr atom_ptr;
{
DisplayRec* display_rec;
for (display_rec = atom_ptr->head; display_rec != NULL;
display_rec = display_rec->next) {
if (display_rec->dpy == d)
return display_rec->atom;
}
display_rec = XtNew(DisplayRec);
display_rec->next = atom_ptr->head;
atom_ptr->head = display_rec;
display_rec->dpy = d;
display_rec->atom = XInternAtom(d, atom_ptr->name, False);
return display_rec->atom;
}
char *XmuGetAtomName(d, atom)
Display *d;
Atom atom;
{
if (atom == 0) return "(BadAtom)";
return XGetAtomName(d, atom);
}
/* convert (names, count) to a list of atoms. Caller allocates list */
void XmuInternStrings(d, names, count, atoms)
Display *d;
register String *names;
register Cardinal count;
register Atom *atoms; /* return */
{
register int i;
for (i = 0; i < count; i++) {
atoms[i] = XInternAtom(d, names[i], False);
}
return;
}
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