formula.php

См. документацию.

<?php
 
namespace Bitrix\Report\VisualConstructor\Handler;
 
use Bitrix\Main\Localization\Loc;
use Bitrix\Report\VisualConstructor\IReportSingleData;

class Formula extends BaseReport implements IReportSingleData
{
    public function __construct()
    {
        parent::__construct();
        $this->setTitle(Loc::getMessage('FORMULA_REPORT_HANDLER_TILE'));
 
    }

    public function prepare()
    {
        return 'temp data';
    }

    public function getSingleData()
    {
        return array(
            'title' => $this->getFormElement('label')->getValue(),
            'value' => $this->getCalculatedData(),
            'config' => array(
                'color' => $this->getFormElement('color')->getValue()
            )
        );
    }

    public function getSingleDemoData()
    {
        return array(
            'value' => 7
        );
    }
}