/* $XConsortium: XQuTextExt.c,v 11.18 91/01/06 11:47:37 rws Exp $ */ /* Copyright Massachusetts Institute of Technology 1986, 1987 */ /* 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. */ #define NEED_REPLIES #include "Xlibint.h" #if NeedFunctionPrototypes XQueryTextExtents ( register Display *dpy, Font fid, register _Xconst char *string, register int nchars, int *dir, int *font_ascent, int *font_descent, register XCharStruct *overall) #else XQueryTextExtents (dpy, fid, string, nchars, dir, font_ascent, font_descent, overall) register Display *dpy; Font fid; register char *string; register int nchars; int *dir; int *font_ascent, *font_descent; register XCharStruct *overall; #endif { register int i; register char *ptr; char *buf; xQueryTextExtentsReply rep; long nbytes; register xQueryTextExtentsReq *req; LockDisplay(dpy); nbytes = nchars << 1; if (! (buf = _XAllocScratch (dpy, (unsigned long) nbytes))) { UnlockDisplay(dpy); SyncHandle(); return 0; } GetReq(QueryTextExtents, req); req->fid = fid; req->length += (nbytes + 3)>>2; req->oddLength = nchars & 1; for (ptr = buf, i = nchars; --i >= 0;) { *ptr++ = 0; *ptr++ = *string++; } Data (dpy, buf, nbytes); if (!_XReply (dpy, (xReply *)&rep, 0, xTrue)) { UnlockDisplay(dpy); SyncHandle(); return (0); } *dir = rep.drawDirection; *font_ascent = cvtINT16toInt (rep.fontAscent); *font_descent = cvtINT16toInt (rep.fontDescent); overall->ascent = (short) cvtINT16toShort (rep.overallAscent); overall->descent = (short) cvtINT16toShort (rep.overallDescent); /* XXX bogus - we're throwing away information!!! */ overall->width = (short) cvtINT32toInt (rep.overallWidth); overall->lbearing = (short) cvtINT32toInt (rep.overallLeft); overall->rbearing = (short) cvtINT32toInt (rep.overallRight); UnlockDisplay(dpy); SyncHandle(); return (1); }