LibWeb: Lay out the fieldset's rendered legend

Author: https://github.com/kostyafarber
Commit: 81f8866606
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2546
Reviewed-by: https://github.com/tcl3 ✅

Libraries/LibWeb/Painting/FieldSetPaintable.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2024, Kostya Farber <kostya.farber@gmail.com>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/Forward.h>
+#include <LibWeb/Layout/FieldSetBox.h>
+#include <LibWeb/Painting/PaintContext.h>
+#include <LibWeb/Painting/PaintableBox.h>
+
+namespace Web::Painting {
+
+class FieldSetPaintable final : public PaintableBox {
+    GC_CELL(FieldSetPaintable, PaintableBox);
+    GC_DECLARE_ALLOCATOR(FieldSetPaintable);
+
+public:
+    static GC::Ref<FieldSetPaintable> create(Layout::FieldSetBox const&);
+
+    virtual void paint(PaintContext&, PaintPhase) const override;
+
+private:
+    Layout::FieldSetBox& layout_box();
+    Layout::FieldSetBox const& layout_box() const;
+
+    explicit FieldSetPaintable(Layout::FieldSetBox const&);
+};
+
+}