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LibWeb: Let Paintable perform the painting

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This patch adds a bunch of Paintable subclasses, each corresponding to
the Layout::Node subclasses that had a paint() override. All painting
logic is moved from layout nodes into their corresponding paintables.

Paintables are now created by asking a Layout::Box to produce one:

    static NonnullOwnPtr<Paintable> Layout::Box::create_paintable()

Note that inline nodes still have their painting logic. Since they
are not boxes, and all paintables have a corresponding box, we'll need
to come up with some other solution for them.
This commit is contained in:
Andreas Kling 2022-03-10 14:02:25 +01:00
parent f6497b64ac
commit 02b316fd5c
64 changed files with 1307 additions and 602 deletions
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5
Userland/Libraries/LibWeb/Layout/ImageBox.h
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@ -20,12 +20,15 @@ public:
virtual ~ImageBox() override;
virtual void prepare_for_replaced_layout() override;
virtual void paint(PaintContext&, Painting::PaintPhase) override;
const DOM::Element& dom_node() const { return static_cast<const DOM::Element&>(ReplacedBox::dom_node()); }
bool renders_as_alt_text() const;
virtual OwnPtr<Painting::Paintable> create_paintable() const override;
auto const& image_loader() const { return m_image_loader; }
private:
// ^BrowsingContext::ViewportClient
virtual void browsing_context_did_set_viewport_rect(Gfx::IntRect const&) final;