1 files changed, 32 insertions, 0 deletions
diff --git a/src/quicknativestyle/items/qquickstyleitemcheckdelegate.cpp b/src/quicknativestyle/items/qquickstyleitemcheckdelegate.cpp
new file mode 100644
index 0000000000..22576c50d2
--- /dev/null
+++ b/src/quicknativestyle/items/qquickstyleitemcheckdelegate.cpp
@@ -0,0 +1,32 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include "qquickstyleitemcheckdelegate.h"
+
+#include <QtQuickTemplates2/private/qquickcheckdelegate_p.h>
+
+QT_BEGIN_NAMESPACE
+
+void QQuickStyleItemCheckDelegate::connectToControl() const
+{
+    QQuickStyleItem::connectToControl();
+    auto checkDelegate = control<QQuickCheckDelegate>();
+    connect(checkDelegate, &QQuickCheckDelegate::downChanged, this, &QQuickStyleItem::markImageDirty);
+    connect(checkDelegate, &QQuickCheckDelegate::checkStateChanged, this, &QQuickStyleItem::markImageDirty);
+}
+
+void QQuickStyleItemCheckDelegate::initStyleOption(QStyleOptionButton &styleOption) const
+{
+    initStyleOptionBase(styleOption);
+    auto checkDelegate = control<QQuickCheckDelegate>();
+
+    styleOption.state |= checkDelegate->isDown() ? QStyle::State_Sunken : QStyle::State_Raised;
+    if (checkDelegate->isTristate() && checkDelegate->checkState() == Qt::PartiallyChecked)
+        styleOption.state |= QStyle::State_NoChange;
+    else
+        styleOption.state |= checkDelegate->isChecked() ? QStyle::State_On : QStyle::State_Off;
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qquickstyleitemcheckdelegate.cpp"