mirror of
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 KiB
C++
119 lines
4 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/Intrinsics.h>
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#include <LibWeb/Bindings/SVGCircleElementPrototype.h>
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#include <LibWeb/CSS/Parser/Parser.h>
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#include <LibWeb/Layout/Node.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/SVGCircleElement.h>
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#include <LibWeb/SVG/SVGViewport.h>
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namespace Web::SVG {
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GC_DEFINE_ALLOCATOR(SVGCircleElement);
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SVGCircleElement::SVGCircleElement(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 SVGCircleElement::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(SVGCircleElement);
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Base::initialize(realm);
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}
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bool SVGCircleElement::is_presentational_hint(FlyString const& name) const
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{
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if (Base::is_presentational_hint(name))
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return true;
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return first_is_one_of(name,
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SVG::AttributeNames::cx,
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SVG::AttributeNames::cy,
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SVG::AttributeNames::r);
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}
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void SVGCircleElement::apply_presentational_hints(GC::Ref<CSS::CascadedProperties> cascaded_properties) const
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{
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Base::apply_presentational_hints(cascaded_properties);
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auto parsing_context = CSS::Parser::ParsingParams { document(), CSS::Parser::ParsingMode::SVGPresentationAttribute };
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auto cx_attribute = attribute(SVG::AttributeNames::cx);
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if (auto cx_value = parse_css_value(parsing_context, cx_attribute.value_or(String {}), CSS::PropertyID::Cx))
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::Cx, cx_value.release_nonnull());
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auto cy_attribute = attribute(SVG::AttributeNames::cy);
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if (auto cy_value = parse_css_value(parsing_context, cy_attribute.value_or(String {}), CSS::PropertyID::Cy))
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::Cy, cy_value.release_nonnull());
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auto r_attribute = attribute(SVG::AttributeNames::r);
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if (auto r_value = parse_css_value(parsing_context, r_attribute.value_or(String {}), CSS::PropertyID::R))
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::R, r_value.release_nonnull());
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}
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Gfx::Path SVGCircleElement::get_path(CSSPixelSize viewport_size)
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{
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auto node = layout_node();
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if (!node) {
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dbgln("FIXME: Null layout node in SVGCircleElement::get_path");
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return {};
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}
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auto cx = float(node->computed_values().cx().to_px(*node, viewport_size.width()));
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auto cy = float(node->computed_values().cy().to_px(*node, viewport_size.height()));
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// Percentages refer to the normalized diagonal of the current SVG viewport
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// (see Units: https://svgwg.org/svg2-draft/coords.html#Units)
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auto r = float(node->computed_values().r().to_px(*node, normalized_diagonal_length(viewport_size)));
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// A zero radius disables rendering.
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if (r == 0)
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return {};
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Gfx::Path path;
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bool large_arc = false;
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bool sweep = true;
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// 1. A move-to command to the point cx+r,cy;
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path.move_to({ cx + r, cy });
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// 2. arc to cx,cy+r;
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path.arc_to({ cx, cy + r }, r, large_arc, sweep);
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// 3. arc to cx-r,cy;
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path.arc_to({ cx - r, cy }, r, large_arc, sweep);
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// 4. arc to cx,cy-r;
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path.arc_to({ cx, cy - r }, r, large_arc, sweep);
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// 5. arc with a segment-completing close path operation.
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path.arc_to({ cx + r, cy }, r, 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#CircleElementCXAttribute
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GC::Ref<SVGAnimatedLength> SVGCircleElement::cx() const
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{
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return svg_animated_length_for_property(CSS::PropertyID::Cx);
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}
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// https://www.w3.org/TR/SVG11/shapes.html#CircleElementCYAttribute
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GC::Ref<SVGAnimatedLength> SVGCircleElement::cy() const
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{
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return svg_animated_length_for_property(CSS::PropertyID::Cy);
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}
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// https://www.w3.org/TR/SVG11/shapes.html#CircleElementRAttribute
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GC::Ref<SVGAnimatedLength> SVGCircleElement::r() const
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{
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return svg_animated_length_for_property(CSS::PropertyID::R);
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}
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}
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