mirror of
https://github.com/RGBCube/serenity
synced 2025-05-14 22:24:57 +00:00
5cf1570f40
Previously, we were handling viewBoxes/viewports in a slightly hacky way, asking graphics elements to figure out what viewBox to use during layout. This does not work in all cases, and can't allow for more complex SVGs where it is possible to have nested viewports. This commit makes the SVGFormattingContext keep track of the viewport/boxes, and it now lays out each viewport recursively, where each nested `<svg>` or `<symbol>` can establish a new viewport. This fixes some previous edge cases, and starts to allow nested viewports (there's still some issues to resolve there). Fixes #22931
90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
/*
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* Copyright (c) 2020, Matthew Olsson <mattco@serenityos.org>
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* Copyright (c) 2021-2022, Sam Atkins <atkinssj@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 <LibGfx/PaintStyle.h>
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#include <LibGfx/Path.h>
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#include <LibWeb/DOM/Node.h>
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#include <LibWeb/SVG/AttributeParser.h>
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#include <LibWeb/SVG/SVGElement.h>
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#include <LibWeb/SVG/SVGGradientElement.h>
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#include <LibWeb/SVG/TagNames.h>
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#include <LibWeb/SVG/ViewBox.h>
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namespace Web::SVG {
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class SVGGraphicsElement : public SVGElement {
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WEB_PLATFORM_OBJECT(SVGGraphicsElement, SVGElement);
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public:
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virtual void apply_presentational_hints(CSS::StyleProperties&) const override;
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virtual void attribute_changed(FlyString const& name, Optional<String> const& value) override;
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Optional<Gfx::Color> fill_color() const;
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Optional<FillRule> fill_rule() const;
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Optional<Gfx::Color> stroke_color() const;
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Optional<float> stroke_width() const;
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Optional<float> fill_opacity() const;
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Optional<float> stroke_opacity() const;
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float visible_stroke_width() const
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{
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if (auto color = stroke_color(); color.has_value() && color->alpha() > 0)
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return stroke_width().value_or(0);
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return 0;
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}
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Gfx::AffineTransform get_transform() const;
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Optional<Gfx::PaintStyle const&> fill_paint_style(SVGPaintContext const&) const;
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Optional<Gfx::PaintStyle const&> stroke_paint_style(SVGPaintContext const&) const;
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JS::GCPtr<SVG::SVGMaskElement const> mask() const;
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protected:
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SVGGraphicsElement(DOM::Document&, DOM::QualifiedName);
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virtual void initialize(JS::Realm&) override;
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virtual Gfx::AffineTransform element_transform() const
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{
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return m_transform;
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}
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Optional<Gfx::PaintStyle const&> svg_paint_computed_value_to_gfx_paint_style(SVGPaintContext const& paint_context, Optional<CSS::SVGPaint> const& paint_value) const;
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Gfx::AffineTransform m_transform = {};
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template<typename T>
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JS::GCPtr<T> try_resolve_url_to(AK::URL const& url) const
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{
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if (!url.fragment().has_value())
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return {};
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auto node = document().get_element_by_id(*url.fragment());
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if (!node)
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return {};
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if (is<T>(*node))
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return static_cast<T&>(*node);
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return {};
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}
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private:
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virtual bool is_svg_graphics_element() const final { return true; }
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};
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Gfx::AffineTransform transform_from_transform_list(ReadonlySpan<Transform> transform_list);
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}
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namespace Web::DOM {
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template<>
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inline bool Node::fast_is<SVG::SVGGraphicsElement>() const { return is_svg_graphics_element(); }
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}
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