function GetWidth($aImg)
{
$txt = new TextProperty();
$txt->SetFont($this->iFFamily, $this->iFStyle, $this->iFSize);
$n = count($this->iTitles);
$rm = $this->iRightColMargin;
$w = 0;
for ($h = 0, $i = 0; $i < $n; ++$i) {
$w += $this->iLeftColMargin;
$txt->Set($this->iTitles[$i]);
if (!empty($this->iWidth[$i])) {
$w1 = max($txt->GetWidth($aImg) + $rm, $this->iWidth[$i]);
} else {
$w1 = $txt->GetWidth($aImg) + $rm;
}
$this->iWidth[$i] = $w1;
$w += $w1;
$h = max($h, $txt->GetHeight($aImg));
}
$this->iHeight = $h + $this->iTopHeaderMargin;
$txt = '';
return $w;
}
