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LibWeb: Add an initial implementation of SVG <radialGradient>

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This follows on from the SVG linear gradients. It supports the same
features (xlink:href, gradientUnits, gradientTransform).

With this commit I have now implemented all web gradients :^)

(Though we are still missing a few parameters for SVG gradients,
e.g. spreadMethod).
This commit is contained in:
MacDue 2023-05-02 23:11:58 +01:00 • committed by Andreas Kling
parent 2826bd2b45
commit 9b652842e4
6 changed files with 289 additions and 0 deletions
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62
Userland/Libraries/LibWeb/SVG/SVGRadialGradientElement.h Normal file
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/*
* Copyright (c) 2023, MacDue <macdue@dueutil.tech>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/SVG/AttributeParser.h>
#include <LibWeb/SVG/SVGAnimatedLength.h>
#include <LibWeb/SVG/SVGGradientElement.h>
namespace Web::SVG {
class SVGRadialGradientElement : public SVGGradientElement {
WEB_PLATFORM_OBJECT(SVGRadialGradientElement, SVGGradientElement);
public:
virtual ~SVGRadialGradientElement() override = default;
virtual void parse_attribute(DeprecatedFlyString const& name, DeprecatedString const& value) override;
virtual Optional<Gfx::PaintStyle const&> to_gfx_paint_style(SVGPaintContext const&) const override;
JS::NonnullGCPtr<SVGAnimatedLength> cx() const;
JS::NonnullGCPtr<SVGAnimatedLength> cy() const;
JS::NonnullGCPtr<SVGAnimatedLength> fx() const;
JS::NonnullGCPtr<SVGAnimatedLength> fy() const;
JS::NonnullGCPtr<SVGAnimatedLength> fr() const;
JS::NonnullGCPtr<SVGAnimatedLength> r() const;
protected:
SVGRadialGradientElement(DOM::Document&, DOM::QualifiedName);
virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
private:
JS::GCPtr<SVGRadialGradientElement const> radial_gradient_xlink_href() const
{
if (auto href = xlink_href(); href && is<SVGRadialGradientElement>(*href))
return &verify_cast<SVGRadialGradientElement>(*href);
return {};
}
NumberPercentage start_circle_x() const;
NumberPercentage start_circle_y() const;
NumberPercentage start_circle_radius() const;
NumberPercentage end_circle_x() const;
NumberPercentage end_circle_y() const;
NumberPercentage end_circle_radius() const;
Optional<NumberPercentage> m_cx;
Optional<NumberPercentage> m_cy;
Optional<NumberPercentage> m_fx;
Optional<NumberPercentage> m_fy;
Optional<NumberPercentage> m_fr;
Optional<NumberPercentage> m_r;
mutable RefPtr<Gfx::SVGRadialGradientPaintStyle> m_paint_style;
};
}