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LibWeb: Let Paintable perform the painting
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.
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64 changed files with 1307 additions and 602 deletions
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@ -84,10 +84,7 @@ public:
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virtual void handle_mousemove(Badge<EventHandler>, const Gfx::IntPoint&, unsigned buttons, unsigned modifiers);
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virtual bool handle_mousewheel(Badge<EventHandler>, const Gfx::IntPoint&, unsigned buttons, unsigned modifiers, int wheel_delta_x, int wheel_delta_y);
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virtual void before_children_paint(PaintContext&, Painting::PaintPhase) {};
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virtual void paint(PaintContext&, Painting::PaintPhase) = 0;
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virtual void paint_fragment(PaintContext&, const LineBoxFragment&, Painting::PaintPhase) const { }
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virtual void after_children_paint(PaintContext&, Painting::PaintPhase) {};
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// These are used to optimize hot is<T> variants for some classes where dynamic_cast is too slow.
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virtual bool is_box() const { return false; }
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