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https://github.com/LadybirdBrowser/ladybird.git
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a6dfc74e93
Before this change, we were going through the chain of base classes for each IDL interface object and having them set the prototype to their prototype. Instead of doing that, reorder things so that we set the right prototype immediately in Foo::initialize(), and then don't bother in all the base class overrides. This knocks off a ~1% profile item on Speedometer 3.
119 lines
4.7 KiB
C++
119 lines
4.7 KiB
C++
/*
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* Copyright (c) 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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#include <LibGfx/Path.h>
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#include <LibWeb/Bindings/SVGEllipseElementPrototype.h>
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#include <LibWeb/HTML/Window.h>
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#include <LibWeb/SVG/AttributeNames.h>
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#include <LibWeb/SVG/AttributeParser.h>
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#include <LibWeb/SVG/SVGEllipseElement.h>
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namespace Web::SVG {
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GC_DEFINE_ALLOCATOR(SVGEllipseElement);
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SVGEllipseElement::SVGEllipseElement(DOM::Document& document, DOM::QualifiedName qualified_name)
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: SVGGeometryElement(document, qualified_name)
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{
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}
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void SVGEllipseElement::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(SVGEllipseElement);
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Base::initialize(realm);
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}
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void SVGEllipseElement::attribute_changed(FlyString const& name, Optional<String> const& old_value, Optional<String> const& value, Optional<FlyString> const& namespace_)
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{
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Base::attribute_changed(name, old_value, value, namespace_);
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if (name == SVG::AttributeNames::cx) {
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m_center_x = AttributeParser::parse_coordinate(value.value_or(String {}));
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} else if (name == SVG::AttributeNames::cy) {
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m_center_y = AttributeParser::parse_coordinate(value.value_or(String {}));
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} else if (name == SVG::AttributeNames::rx) {
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m_radius_x = AttributeParser::parse_positive_length(value.value_or(String {}));
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} else if (name == SVG::AttributeNames::ry) {
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m_radius_y = AttributeParser::parse_positive_length(value.value_or(String {}));
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}
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}
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Gfx::Path SVGEllipseElement::get_path(CSSPixelSize)
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{
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float rx = m_radius_x.value_or(0);
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float ry = m_radius_y.value_or(0);
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float cx = m_center_x.value_or(0);
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float cy = m_center_y.value_or(0);
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Gfx::Path path;
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// A computed value of zero for either dimension, or a computed value of auto for both dimensions, disables rendering of the element.
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if (rx == 0 || ry == 0)
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return path;
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Gfx::FloatSize radii = { rx, ry };
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double x_axis_rotation = 0;
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bool large_arc = false;
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bool sweep = true; // Note: Spec says it should be false, but it's wrong. https://github.com/w3c/svgwg/issues/765
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// 1. A move-to command to the point cx+rx,cy;
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path.move_to({ cx + rx, cy });
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// 2. arc to cx,cy+ry;
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path.elliptical_arc_to({ cx, cy + ry }, radii, x_axis_rotation, large_arc, sweep);
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// 3. arc to cx-rx,cy;
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path.elliptical_arc_to({ cx - rx, cy }, radii, x_axis_rotation, large_arc, sweep);
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// 4. arc to cx,cy-ry;
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path.elliptical_arc_to({ cx, cy - ry }, radii, x_axis_rotation, large_arc, sweep);
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// 5. arc with a segment-completing close path operation.
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path.elliptical_arc_to({ cx + rx, cy }, radii, x_axis_rotation, large_arc, sweep);
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return path;
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}
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// https://www.w3.org/TR/SVG11/shapes.html#EllipseElementCXAttribute
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GC::Ref<SVGAnimatedLength> SVGEllipseElement::cx() const
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{
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// FIXME: Populate the unit type when it is parsed (0 here is "unknown").
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// FIXME: Create a proper animated value when animations are supported.
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auto base_length = SVGLength::create(realm(), 0, m_center_x.value_or(0));
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auto anim_length = SVGLength::create(realm(), 0, m_center_x.value_or(0));
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return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
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}
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// https://www.w3.org/TR/SVG11/shapes.html#EllipseElementCYAttribute
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GC::Ref<SVGAnimatedLength> SVGEllipseElement::cy() const
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{
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// FIXME: Populate the unit type when it is parsed (0 here is "unknown").
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// FIXME: Create a proper animated value when animations are supported.
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auto base_length = SVGLength::create(realm(), 0, m_center_y.value_or(0));
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auto anim_length = SVGLength::create(realm(), 0, m_center_y.value_or(0));
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return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
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}
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// https://www.w3.org/TR/SVG11/shapes.html#EllipseElementRXAttribute
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GC::Ref<SVGAnimatedLength> SVGEllipseElement::rx() const
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{
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// FIXME: Populate the unit type when it is parsed (0 here is "unknown").
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// FIXME: Create a proper animated value when animations are supported.
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auto base_length = SVGLength::create(realm(), 0, m_radius_x.value_or(0));
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auto anim_length = SVGLength::create(realm(), 0, m_radius_x.value_or(0));
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return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
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}
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// https://www.w3.org/TR/SVG11/shapes.html#EllipseElementRYAttribute
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GC::Ref<SVGAnimatedLength> SVGEllipseElement::ry() const
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{
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// FIXME: Populate the unit type when it is parsed (0 here is "unknown").
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// FIXME: Create a proper animated value when animations are supported.
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auto base_length = SVGLength::create(realm(), 0, m_radius_y.value_or(0));
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auto anim_length = SVGLength::create(realm(), 0, m_radius_y.value_or(0));
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return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
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}
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}
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