static void setFontSize(SFFontRef sfFont, SFFloat size) {
sfFont->_size = size;
sfFont->_sizeByEm = size / CGFontGetUnitsPerEm(sfFont->_cgFont);
sfFont->_ascender = sfFont->_sizeByEm * CGFontGetAscent(sfFont->_cgFont);
sfFont->_descender = sfFont->_sizeByEm * CGFontGetDescent(sfFont->_cgFont);
sfFont->_leading = sfFont->_ascender - sfFont->_descender;
}
void
load(XFont *f)
{
int i, j;
CGFontRef font;
CFStringRef s;
UniChar u[256];
CGGlyph g[256];
CGRect bbox;
if(f->loaded)
return;
f->loaded = 1;
s = c2mac(f->name);
font = CGFontCreateWithFontName(s);
CFRelease(s);
if(font == nil)
return;
// assume bbox gives latin1 is height/ascent for all
bbox = subfontbbox(font, 0x00, 0xff);
f->unit = CGFontGetUnitsPerEm(font);
f->height = bbox.size.height;
f->originy = bbox.origin.y;
// figure out where the letters are
for(i=0; i<0xffff; i+=0x100) {
for(j=0; j<0x100; j++) {
u[j] = mapUnicode(i+j);
g[j] = 0;
}
CGFontGetGlyphsForUnichars(font, u, g, 256);
for(j=0; j<0x100; j++) {
if(g[j] != 0) {
f->range[i>>8] = 1;
f->nrange++;
break;
}
}
}
