radio: new class 'qfq-disabled' if readonly is set.

extension/Classes/Core/AbstractBuildForm.php

@@ -2076,7 +2076,13 @@ abstract class AbstractBuildForm {
         }
 
         $labelAttribute = Support::doAttribute('title', $formElement[FE_TOOLTIP]);
-        $html = Support::wrapTag("<label class='checkbox' $labelAttribute>", $html, true);
+
+        $class = 'checkbox';
+        if ($formElement[FE_MODE] == FE_MODE_READONLY) {
+            $class .= ' qfq-disabled'; // necessary for own style checkboxes to display them 'disabled'
+        }
+
+        $html = Support::wrapTag("<label class='$class' $labelAttribute>", $html, true);
 //        $html = Support::wrapTag("<div class='checkbox'>", $html, true);
 
         $json = $this->getFormElementForJson($htmlFormElementName, $valueJson, $formElement);
@@ -2247,6 +2253,10 @@ abstract class AbstractBuildForm {
 
         $orientation = ($formElement[FE_MAX_LENGTH] > 1) ? ALIGN_HORIZONTAL : ALIGN_VERTICAL;
         $checkboxClass = ($orientation === ALIGN_HORIZONTAL) ? 'checkbox-inline' : 'checkbox';
+        if ($formElement[FE_MODE] == FE_MODE_READONLY) {
+            $checkboxClass .= ' qfq-disabled'; // necessary for own style checkboxes to display them 'disabled'
+        }
+
         $br = '';
 
         $flagFirst = true;
@@ -2502,6 +2512,9 @@ abstract class AbstractBuildForm {
 
         $orientation = ($formElement[FE_MAX_LENGTH] > 1) ? ALIGN_HORIZONTAL : ALIGN_VERTICAL;
         $radioClass = ($orientation === ALIGN_HORIZONTAL) ? 'radio-inline' : 'radio';
+        if ($formElement[FE_MODE] == FE_MODE_READONLY) {
+            $radioClass .= ' qfq-disabled';
+        }
         $radioOuterTag = ($orientation === ALIGN_HORIZONTAL) ? 'label' : 'div';
         $br = '';