/**
* Initializes the widget options.
* This method sets the default values for various options.
*/
protected function initOptions()
{
if (empty($this->content) && $this->skipOnEmpty == false) {
throw new InvalidConfigException("No content for widget data");
} elseif (empty($this->content)) {
return false;
}
$itemsCount = count($this->content);
$colorStep = round(100 / $itemsCount);
ArrayHelper::multisort($this->content, 'value', SORT_DESC);
foreach ($this->content as $key => $item) {
if (empty($this->content[$key]['color'])) {
$nextColor = $this->adjustBrightness(isset($nextColor) ? $nextColor : $this->baseColor, $colorStep);
$this->content[$key]['color'] = $nextColor;
$this->content[$key]['label'] = $this->content[$key]['label'];
}
}
$this->pieOptions['data']['content'] = $this->content;
$this->pieOptions['header']['title']['text'] = $this->title;
$this->pieOptions = ArrayHelper::merge($this->pieOptions, $this->options);
$this->registerAssets();
}
