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/*
 * $XFree86: xc/lib/Xft/xftfont.c,v 1.1 2000/11/29 08:39:22 keithp Exp $
 *
 * Copyright © 2000 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 <stdlib.h>
#include "xftint.h"

XftPattern *
XftFontMatch (Display *dpy, int screen, XftPattern *pattern, XftResult *result)
{
    XftPattern	*new;
    XftPattern	*match;
    XftFontSet	*sets[2];
    int		nsets;
#ifdef FREETYPE2
    Bool	render, core;
#endif

    if (!XftInit (0))
	return 0;
    
    new = XftPatternDuplicate (pattern);
    if (!new)
	return 0;
    XftConfigSubstitute (new);
    XftDefaultSubstitute (dpy, screen, new);
    nsets = 0;
    
#ifdef FREETYPE2
    render = False;
    core = True;
    (void) XftPatternGetBool (new, XFT_RENDER, 0, &render);
    (void) XftPatternGetBool (new, XFT_CORE, 0, &core);

    if (render)
    {
	if (XftInitFtLibrary ())
	{
	    sets[nsets] = _XftFontSet;
	    if (sets[nsets])
		nsets++;
	}
    }
    if (core)
#endif
    {
	sets[nsets] = XftDisplayGetFontSet (dpy);
	if (sets[nsets])
	    nsets++;
    }
    
    match = XftFontSetMatch (sets, nsets, new, result);
    XftPatternDestroy (new);
    return match;
}

XftFont *
XftFontOpenPattern (Display *dpy, XftPattern *pattern)
{
    Bool	    core;
    XFontStruct	    *xfs = 0;
    XftFontStruct   *fs = 0;
    XftFont	    *font;

    if (XftPatternGetBool (pattern, XFT_CORE, 0, &core) != XftResultMatch)
	return 0;
    if (core)
    {
	xfs = XftCoreOpen (dpy, pattern);
	if (!xfs) return 0;
    }
    else
    {
	fs = XftFreeTypeOpen (dpy, pattern);
	if (!fs) return 0;
    }
    font = (XftFont *) malloc (sizeof (XftFont));
    font->core = core;
    font->pattern = pattern;
    if (core)
    {
	font->u.core.font = xfs;
	font->ascent = xfs->ascent;
	font->descent = xfs->descent;
	font->height = xfs->ascent + xfs->descent;
	font->max_advance_width = xfs->max_bounds.width;
    }
    else
    {
	font->u.ft.font = fs;
	font->ascent = fs->ascent;
	font->descent = fs->descent;
	font->height = fs->height;
	font->max_advance_width = fs->max_advance_width;
    }
    return font;
}

XftFont *
XftFontOpen (Display *dpy, int screen, ...)
{
    va_list	    va;
    XftPattern	    *pat;
    XftPattern	    *match;
    XftResult	    result;
    XftFont	    *font;

    va_start (va, screen);
    pat = XftPatternVaBuild (0, va);
    va_end (va);
    if (!pat)
	return 0;
    match = XftFontMatch (dpy, screen, pat, &result);
    XftPatternDestroy (pat);
    if (!match)
	return 0;
    
    font = XftFontOpenPattern (dpy, match);
    if (!font)
	XftPatternDestroy (match);

    return font;
}

XftFont *
XftFontOpenName (Display *dpy, int screen, const char *name)
{
    XftPattern	    *pat;
    XftPattern	    *match;
    XftResult	    result;
    XftFont   *font;

    pat = XftNameParse (name);
    if (!pat)
	return 0;
    match = XftFontMatch (dpy, screen, pat, &result);
    XftPatternDestroy (pat);
    if (!match)
	return 0;
    
    font = XftFontOpenPattern (dpy, match);
    if (!font)
	XftPatternDestroy (match);
    
    return font;
}

void
XftFontClose (Display *dpy, XftFont *font)
{
    if (font->core)
	XFreeFont (dpy, font->u.core.font);
    else
	XftFreeTypeClose (dpy, font->u.ft.font);
    if (font->pattern)
	XftPatternDestroy (font->pattern);
    free (font);
}