diff options
Diffstat (limited to 'src/Cursor.c')
| -rw-r--r-- | src/Cursor.c | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/src/Cursor.c b/src/Cursor.c new file mode 100644 index 0000000..c3d1123 --- /dev/null +++ b/src/Cursor.c @@ -0,0 +1,217 @@ +/* + * $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(); +} |