/**
* Overloaded GetStringWidth for calculating a String width with another Font/size than the current one
*/
function GetStringWidth($s, $psFontFamily = '', $psSize = '')
{
if ($psFontFamily == '' or $psSize == '' or !array_key_exists($psFontFamily, $this->fonts)) {
return parent::GetStringWidth($s);
}
//Get width of a string in the current font
$s = (string) $s;
$cw = $this->fonts[$psFontFamily]['cw'];
$w = 0;
$l = strlen($s);
for ($i = 0; $i < $l; $i++) {
$w += $cw[$s[$i]];
}
return $w * $psSize / 1000;
}
