public function getWidth($aImg)
{
$scaling = 1;
//$this->iAntiAlias ? 2 : 1 ;
if ($this->iSize > 0 && $this->iSize < 1) {
$this->iSize *= min($aImg->width, $aImg->height);
}
$value = new Text\Text();
$value->SetFont($this->iFontFamily, $this->iFontStyle, $this->iFontSize * $scaling);
$value->SetColor($this->iFontColor);
// Setup extra size around the graph needed so that the labels
// doesn't get cut. For this we need to find the largest label.
// The code below gives a possible a little to large margin. The
// really, really proper way would be to account for what angle
// the label are at
$n = count($this->iLabels);
if ($n > 0) {
$maxh = 0;
$maxw = 0;
foreach ($this->iLabels as $key => $lbl) {
$value->Set($lbl);
$maxw = max($maxw, $value->GetWidth($aImg));
}
} else {
$value->Set('888.888');
// Dummy value to get width/height
$maxw = $value->GetWidth($aImg);
}
// Add an extra margin of 50% the font size
$maxw += round($this->iFontSize * $scaling * 0.4);
$valxmarg = 1.5 * $maxw + 2 * $this->iLabelMargin * $scaling;
$w = round($this->iSize * $scaling + $valxmarg);
// Make sure that the width of the legend fits
$legendwidth = $this->_StrokeLegend($aImg, 0, 0, $scaling, true) + 10 * $scaling;
$w = max($w, $legendwidth);
return $w;
}
