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LibWeb: Implement painting for svg text

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The implementation of painting for SVG text follows the same pattern
as the implementation of painting for SVG geometries. However, instead
of reusing the existing PaintableWithLines to draw text, a new class
called SVGTextPaintable is introduced. because everything that is
painted inside an SVG is expected to inherit from SVGGraphicsPaintable.
Therefore reusing the text painting from regular text nodes would
require significant refactoring.
This commit is contained in:
Aliaksandr Kalenik 2023-06-08 21:32:33 +03:00 • committed by Andreas Kling
parent 81a6976e90
commit 0d8d7ae94e
9 changed files with 216 additions and 0 deletions
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33
Userland/Libraries/LibWeb/Layout/SVGTextBox.h Normal file
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/*
* Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Optional.h>
#include <LibWeb/Layout/SVGGraphicsBox.h>
#include <LibWeb/SVG/SVGTextContentElement.h>
namespace Web::Layout {
class SVGTextBox final : public SVGGraphicsBox {
JS_CELL(SVGTextBox, SVGGraphicsBox);
public:
SVGTextBox(DOM::Document&, SVG::SVGTextContentElement&, NonnullRefPtr<CSS::StyleProperties>);
virtual ~SVGTextBox() override = default;
SVG::SVGTextContentElement& dom_node() { return static_cast<SVG::SVGTextContentElement&>(SVGGraphicsBox::dom_node()); }
SVG::SVGTextContentElement const& dom_node() const { return static_cast<SVG::SVGTextContentElement const&>(SVGGraphicsBox::dom_node()); }
Optional<Gfx::AffineTransform> layout_transform() const;
virtual JS::GCPtr<Painting::Paintable> create_paintable() const override;
private:
CSSPixelPoint viewbox_origin() const;
};
}