private function setBarWidth()
{
if (isset($this->barWidth)) {
$this->realBarWidth = $this->barWidth;
return;
}
$this->_setBarCount();
$totalGroups = KChartGoogleHelper::getMaxCountOfArray($this->_data);
if ($this->isHoriz) {
$chartSize = $this->_height - 50;
} else {
$chartSize = $this->_width - 50;
}
$chartSize -= $totalGroups * $this->_groupSpacerWidth;
$this->realBarWidth = round($chartSize / $this->totalBars);
}
/**
* Set bar count
*/
protected function _setBarCount()
{
$this->totalBars = KChartGoogleHelper::getMaxCountOfArray($this->_data);
}
