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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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@ -41,11 +41,7 @@ void FormattingState::commit()
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// For boxes, transfer all the state needed for painting.
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if (is<Layout::Box>(node)) {
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auto& box = static_cast<Layout::Box&>(node);
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box.set_paint_box([](Layout::Box const& layout_box) -> OwnPtr<Painting::Paintable> {
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if (is<Layout::BlockContainer>(layout_box))
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return Painting::PaintableWithLines::create(static_cast<Layout::BlockContainer const&>(layout_box));
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return Painting::Paintable::create(static_cast<Layout::Box const&>(layout_box));
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}(box));
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box.set_paint_box(box.create_paintable());
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box.m_paint_box->set_offset(node_state.offset);
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box.m_paint_box->set_content_size(node_state.content_width, node_state.content_height);
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box.m_paint_box->set_overflow_data(move(node_state.overflow_data));
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