81 lines
2.6 KiB
C
81 lines
2.6 KiB
C
/*
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Copyright 1986, 1987, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "Xlibint.h"
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int
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XQueryTextExtents (
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register Display *dpy,
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Font fid,
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register _Xconst char *string,
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register int nchars,
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int *dir,
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int *font_ascent,
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int *font_descent,
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register XCharStruct *overall)
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{
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register int i;
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register char *ptr;
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char *buf;
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xQueryTextExtentsReply rep;
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long nbytes;
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register xQueryTextExtentsReq *req;
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LockDisplay(dpy);
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nbytes = nchars << 1;
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GetReq(QueryTextExtents, req);
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req->fid = fid;
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if ((buf = _XAllocScratch (dpy, (unsigned long) nbytes))) {
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req->length += (nbytes + 3)>>2;
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req->oddLength = nchars & 1;
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for (ptr = buf, i = nchars; --i >= 0;) {
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*ptr++ = 0;
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*ptr++ = *string++;
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}
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Data (dpy, buf, nbytes);
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}
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if (!_XReply (dpy, (xReply *)&rep, 0, xTrue) || !buf) {
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UnlockDisplay(dpy);
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SyncHandle();
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return 0;
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}
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*dir = rep.drawDirection;
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*font_ascent = cvtINT16toInt (rep.fontAscent);
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*font_descent = cvtINT16toInt (rep.fontDescent);
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overall->ascent = (short) cvtINT16toShort (rep.overallAscent);
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overall->descent = (short) cvtINT16toShort (rep.overallDescent);
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/* XXX bogus - we're throwing away information!!! */
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overall->width = (short) cvtINT32toInt (rep.overallWidth);
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overall->lbearing = (short) cvtINT32toInt (rep.overallLeft);
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overall->rbearing = (short) cvtINT32toInt (rep.overallRight);
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UnlockDisplay(dpy);
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SyncHandle();
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return 1;
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}
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