Magento2 show label on product page if price is with or without tax

Question

In the EU, you have go to label if a price is incl. or excl. tax in the shop frontend. If you run different shops where you have got both settings, it could be realized with different custom translation strings which are store view specific. Magento has the information, if a price is incl or excl tax, but the question is how to code it. In Magento1, I solved it with the following code, but so far I have no idea how to do it with Magento2:

<?php $tax_display_type = Mage::getStoreConfig(
               'tax/display/type',
               Mage::app()->getStore()
           );?>
   <?php if ($tax_display_type == 2): ?>
    <?php echo $this->__('Incl. Tax') ?> 
<?php else: ?>
    <?php echo $this->__('Excl. Tax') ?> 
<?php endif;?>

Any ideas? Thank you very much!

Answer 1

app/code/SR/MagentoCommunity/etc/frontend/di.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\Framework\Pricing\Render\PriceBox">
        <plugin name="sr_text_added_product_render_amount"
                type="SR\MagentoCommunity\Plugin\Pricing\Render\PriceBox" sortOrder="1"/>
    </type>
</config>

app/code/SR/MagentoCommunity/Plugin/Pricing/Render/PriceBox.php

<?php
namespace SR\MagentoCommunity\Plugin\Pricing\Render;

use Magento\Framework\App\Config\ScopeConfigInterface;
use Magento\Store\Model\ScopeInterface;

class PriceBox
{
    /**
     * @var ScopeConfigInterface
     */
    private $scopeConfig;

    /**
     * PriceBox constructor.
     *
     * @param ScopeConfigInterface $scopeConfig
     */
    public function __construct(
        ScopeConfigInterface $scopeConfig
    ) {
        $this->scopeConfig = $scopeConfig;
    }

    /**
     * @param \Magento\Framework\Pricing\Render\PriceBox $subject
     * @param string $html
     * @return string
     */
    public function afterRenderAmount(
        \Magento\Framework\Pricing\Render\PriceBox $subject,
        $html
    ) {
        $taxDisplayType = $this->scopeConfig->getValue('tax/display/type', ScopeInterface::SCOPE_STORE);
        if ($taxDisplayType == 2) {
            $html = __('Incl. Tax ') . $html;
        } else {
            $html = __('Excl. Tax ') . $html;
        }

        return $html;
    }
}