void
XftCoreExtentsUtf8 (Display *dpy,
XFontStruct *fs,
XftChar8 *string,
int len,
XGlyphInfo *extents)
{
int direction;
int ascent, descent;
XCharStruct overall;
XChar2b *xc, xcloc[XFT_CORE_N16LOCAL];
int n;
xc = XftCoreConvertUtf8 (string, len, xcloc, &n);
XTextExtents16 (fs, xc, n, &direction,
&ascent, &descent, &overall);
if (xc != xcloc)
free (xc);
if (overall.lbearing < overall.rbearing)
{
extents->x = overall.lbearing;
extents->width = overall.rbearing - overall.lbearing;
}
else
{
extents->x = overall.rbearing;
extents->width = overall.lbearing - overall.rbearing;
}
extents->y = -overall.ascent;
extents->height = overall.ascent + overall.descent;
extents->xOff = overall.width;
extents->yOff = 0;
}
void Font::char_bbox(long c, FontBoundingBox& b) const {
if (c < 0) {
b.left_bearing_ = 0;
b.right_bearing_ = 0;
b.width_ = 0;
b.ascent_ = 0;
b.descent_ = 0;
b.font_ascent_ = 0;
b.font_descent_ = 0;
return;
}
FontRep* f = impl_->default_rep();
float scale = f->scale_;
XFontStruct* xf = f->font_;
Display* d = f->display_;
XCharStruct xc;
XChar2b xc2b;
xc2b.byte1 = (unsigned char)((c & 0xff00) >> 8);
xc2b.byte2 = (unsigned char)(c & 0xff);
int dir, asc, des;
XTextExtents16(xf, &xc2b, 1, &dir, &asc, &des, &xc);
b.left_bearing_ = scale * d->to_coord(-xc.lbearing);
b.right_bearing_ = scale * d->to_coord(xc.rbearing);
b.width_ = width(c);
b.ascent_ = scale * d->to_coord(xc.ascent);
b.descent_ = scale * d->to_coord(xc.descent);
b.font_ascent_ = scale * d->to_coord(xf->ascent);
b.font_descent_ = scale * d->to_coord(xf->descent);
}
static void X11DRV_TextExtents_normal( fontObject* pfo, XChar2b* pstr, int count,
int* pdir, int* pascent, int* pdescent,
int* pwidth, int max_extent, int* pfit,
int* partial_extents )
{
XCharStruct info;
int ascent, descent, width;
int i, fit;
width = 0;
fit = 0;
*pascent = 0;
*pdescent = 0;
wine_tsx11_lock();
for ( i = 0; i < count; i++ )
{
XTextExtents16( pfo->fs, pstr, 1, pdir, &ascent, &descent, &info );
if ( *pascent < ascent ) *pascent = ascent;
if ( *pdescent < descent ) *pdescent = descent;
width += info.width;
if ( partial_extents ) partial_extents[i] = width;
if ( width < max_extent ) fit++;
pstr++;
}
wine_tsx11_unlock();
*pwidth = width;
if ( pfit ) *pfit = fit;
}
Bool
XftCoreGlyphExists (Display *dpy,
XFontStruct *fs,
XftChar32 glyph)
{
int direction;
int ascent, descent;
XCharStruct overall;
XChar2b xc;
XftCoreConvert32 (&glyph, 1, &xc);
XTextExtents16 (fs, &xc, 1, &direction,
&ascent, &descent, &overall);
return (overall.lbearing != 0 ||
overall.rbearing != 0 ||
overall.width != 0 ||
overall.ascent != 0 ||
overall.descent != 0);
}
static
void X11DRV_TextExtents_dbcs_2fonts( fontObject* pfo, XChar2b* pstr, int count,
int* pdir, int* pascent, int* pdescent,
int* pwidth, int max_extent, int* pfit,
int* partial_extents )
{
XCharStruct info;
int ascent, descent, width;
int i;
int fit;
int curfont;
fontObject* pfos[X11FONT_REFOBJS_MAX+1];
pfos[0] = XFONT_GetFontObject( pfo->prefobjs[0] );
pfos[1] = pfo;
if ( pfos[0] == NULL ) pfos[0] = pfo;
width = 0;
fit = 0;
*pascent = 0;
*pdescent = 0;
wine_tsx11_lock();
for ( i = 0; i < count; i++ )
{
curfont = ( pstr->byte1 != 0 ) ? 1 : 0;
XTextExtents16( pfos[curfont]->fs, pstr, 1, pdir, &ascent, &descent, &info );
if ( *pascent < ascent ) *pascent = ascent;
if ( *pdescent < descent ) *pdescent = descent;
width += info.width;
if ( partial_extents ) partial_extents[i] = width;
if ( width <= max_extent ) fit++;
pstr ++;
}
wine_tsx11_unlock();
*pwidth = width;
if ( pfit ) *pfit = fit;
}