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https://github.com/RGBCube/serenity
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d296992fb3
Eventually we should not need the layout tree for anything when painting and this code will only look at the paint tree. For now, this is just another step in that direction.
59 lines
1.8 KiB
C++
59 lines
1.8 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/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(PaintableBox&, 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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PaintableBox const& paintable_box() const { return *m_paintable_box; }
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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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void paint_descendants(PaintContext&, Paintable const&, StackingContextPaintPhase) const;
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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<PaintableBox> m_paintable_box;
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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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void paint_child(PaintContext&, StackingContext const&) const;
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void paint_internal(PaintContext&) const;
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Gfx::FloatMatrix4x4 get_transformation_matrix(CSS::Transformation const& transformation) 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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