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https://github.com/RGBCube/serenity
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3cf5ad002a
With this change, a stacking context can be established by any paintable, including inline paintables. The stacking context traversal is updated to remove the assumption that the stacking context root is paintable box.
62 lines
2 KiB
C++
62 lines
2 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Vector.h>
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#include <LibGfx/Matrix4x4.h>
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#include <LibWeb/Painting/InlinePaintable.h>
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#include <LibWeb/Painting/Paintable.h>
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namespace Web::Painting {
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class StackingContext {
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public:
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StackingContext(Paintable&, StackingContext* parent, size_t index_in_tree_order);
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StackingContext* parent() { return m_parent; }
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StackingContext const* parent() const { return m_parent; }
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Paintable const& paintable() const { return *m_paintable; }
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PaintableBox const& paintable_box() const { return verify_cast<PaintableBox>(*m_paintable); }
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InlinePaintable const& inline_paintable() const { return verify_cast<InlinePaintable>(*m_paintable); }
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enum class StackingContextPaintPhase {
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BackgroundAndBorders,
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Floats,
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BackgroundAndBordersForInlineLevelAndReplaced,
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Foreground,
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FocusAndOverlay,
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};
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static void paint_node_as_stacking_context(Paintable const&, PaintContext&);
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static void paint_descendants(PaintContext&, Paintable const&, StackingContextPaintPhase);
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void paint(PaintContext&) const;
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Optional<HitTestResult> hit_test(CSSPixelPoint, HitTestType) const;
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Gfx::FloatMatrix4x4 const& transform_matrix() const { return m_transform; }
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Gfx::AffineTransform affine_transform_matrix() const;
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void dump(int indent = 0) const;
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void sort();
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private:
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JS::NonnullGCPtr<Paintable> m_paintable;
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Gfx::FloatMatrix4x4 m_transform;
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Gfx::FloatPoint m_transform_origin;
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StackingContext* const m_parent { nullptr };
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Vector<StackingContext*> m_children;
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size_t m_index_in_tree_order { 0 };
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static void paint_child(PaintContext&, StackingContext const&);
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void paint_internal(PaintContext&) const;
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Gfx::FloatMatrix4x4 combine_transformations(Vector<CSS::Transformation> const& transformations) const;
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Gfx::FloatPoint transform_origin() const { return m_transform_origin; }
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Gfx::FloatPoint compute_transform_origin() const;
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};
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}
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