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/*
* $XFree86: xc/lib/Xfixes/Cursor.c,v 1.1 2002/11/30 06:21:44 keithp Exp $
*
* Copyright © 2002 Keith Packard, member of The XFree86 Project, Inc.
*
* 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 Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD 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.
*/
#include "Xfixesint.h"
void
XFixesSelectCursorInput (Display *dpy,
Window win,
unsigned long eventMask)
{
XFixesExtDisplayInfo *info = XFixesFindDisplay (dpy);
xXFixesSelectCursorInputReq *req;
XFixesSimpleCheckExtension (dpy, info);
LockDisplay (dpy);
GetReq (XFixesSelectCursorInput, req);
req->reqType = info->codes->major_opcode;
req->xfixesReqType = X_XFixesSelectCursorInput;
req->window = win;
req->eventMask = eventMask;
UnlockDisplay (dpy);
SyncHandle ();
}
XFixesCursorImage *
XFixesGetCursorImage (Display *dpy)
{
XFixesExtDisplayInfo *info = XFixesFindDisplay (dpy);
xXFixesGetCursorImageAndNameReq *req;
xXFixesGetCursorImageAndNameReply rep;
int npixels;
int nbytes_name;
int nbytes, nread, rlength;
XFixesCursorImage *image;
char *name;
XFixesCheckExtension (dpy, info, 0);
LockDisplay (dpy);
GetReq (XFixesGetCursorImageAndName, req);
req->reqType = info->codes->major_opcode;
if (info->major_version >= 2)
req->xfixesReqType = X_XFixesGetCursorImageAndName;
else
req->xfixesReqType = X_XFixesGetCursorImage;
if (!_XReply (dpy, (xReply *) &rep, 0, xFalse))
{
UnlockDisplay (dpy);
SyncHandle ();
return 0;
}
if (info->major_version < 2)
{
rep.cursorName = None;
rep.nbytes = 0;
}
npixels = rep.width * rep.height;
nbytes_name = rep.nbytes;
/* reply data length */
nbytes = (long) rep.length << 2;
/* bytes of actual data in the reply */
nread = (npixels << 2) + nbytes_name;
/* size of data returned to application */
rlength = (sizeof (XFixesCursorImage) +
npixels * sizeof (unsigned long) +
nbytes_name + 1);
image = (XFixesCursorImage *) Xmalloc (rlength);
if (!image)
{
_XEatData (dpy, nbytes);
UnlockDisplay (dpy);
SyncHandle ();
return 0;
}
image->x = rep.x;
image->y = rep.y;
image->width = rep.width;
image->height = rep.height;
image->xhot = rep.xhot;
image->yhot = rep.yhot;
image->cursor_serial = rep.cursorSerial;
image->pixels = (unsigned long *) (image + 1);
image->atom = rep.cursorName;
name = (char *) (image->pixels + npixels);
image->name = name;
_XRead32 (dpy, image->pixels, npixels << 2);
_XRead (dpy, name, nbytes_name);
name[nbytes_name] = '\0'; /* null-terminate */
/* skip any padding */
if(nbytes > nread)
{
_XEatData (dpy, (unsigned long) (nbytes - nread));
}
UnlockDisplay (dpy);
SyncHandle ();
return image;
}
void
XFixesSetCursorName (Display *dpy, Cursor cursor, const char *name)
{
XFixesExtDisplayInfo *info = XFixesFindDisplay (dpy);
xXFixesSetCursorNameReq *req;
int nbytes = strlen (name);
XFixesSimpleCheckExtension (dpy, info);
if (info->major_version < 2)
return;
LockDisplay (dpy);
GetReq (XFixesSetCursorName, req);
req->reqType = info->codes->major_opcode;
req->xfixesReqType = X_XFixesSetCursorName;
req->cursor = cursor;
req->nbytes = nbytes;
req->length += (nbytes + 3) >> 2;
Data (dpy, name, nbytes);
UnlockDisplay (dpy);
SyncHandle ();
}
const char *
XFixesGetCursorName (Display *dpy, Cursor cursor, Atom *atom)
{
XFixesExtDisplayInfo *info = XFixesFindDisplay (dpy);
xXFixesGetCursorNameReq *req;
xXFixesGetCursorNameReply rep;
char *name;
XFixesCheckExtension (dpy, info, 0);
if (info->major_version < 2)
return 0;
LockDisplay (dpy);
GetReq (XFixesGetCursorName, req);
req->reqType = info->codes->major_opcode;
req->xfixesReqType = X_XFixesGetCursorName;
req->cursor = cursor;
if (!_XReply (dpy, (xReply *) &rep, 0, xFalse))
{
UnlockDisplay (dpy);
SyncHandle ();
return 0;
}
*atom = rep.atom;
if ((name = (char *) Xmalloc(rep.nbytes+1))) {
_XReadPad(dpy, name, (long)rep.nbytes);
name[rep.nbytes] = '\0';
} else {
_XEatData(dpy, (unsigned long) (rep.nbytes + 3) & ~3);
name = (char *) NULL;
}
UnlockDisplay(dpy);
SyncHandle();
return(name);
}
void
XFixesChangeCursor (Display *dpy, Cursor source, Cursor destination)
{
XFixesExtDisplayInfo *info = XFixesFindDisplay (dpy);
xXFixesChangeCursorReq *req;
XFixesSimpleCheckExtension (dpy, info);
if (info->major_version < 2)
return;
LockDisplay (dpy);
GetReq (XFixesChangeCursor, req);
req->reqType = info->codes->major_opcode;
req->xfixesReqType = X_XFixesChangeCursor;
req->source = source;
req->destination = destination;
UnlockDisplay(dpy);
SyncHandle();
}
void
XFixesChangeCursorByName (Display *dpy, Cursor source, const char *name)
{
XFixesExtDisplayInfo *info = XFixesFindDisplay (dpy);
xXFixesChangeCursorByNameReq *req;
int nbytes = strlen (name);
XFixesSimpleCheckExtension (dpy, info);
if (info->major_version < 2)
return;
LockDisplay (dpy);
GetReq (XFixesChangeCursorByName, req);
req->reqType = info->codes->major_opcode;
req->xfixesReqType = X_XFixesChangeCursorByName;
req->source = source;
req->nbytes = nbytes;
req->length += (nbytes + 3) >> 2;
Data (dpy, name, nbytes);
UnlockDisplay(dpy);
SyncHandle();
}
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