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https://github.com/RGBCube/serenity
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bfd354492e
With this change, we now have ~1200 CellAllocators across both LibJS and LibWeb in a normal WebContent instance. This gives us a minimum heap size of 4.7 MiB in the scenario where we only have one cell allocated per type. Of course, in practice there will be many more of each type, so the effective overhead is quite a bit smaller than that in practice. I left a few types unconverted to this mechanism because I got tired of doing this. :^)
127 lines
4.9 KiB
C++
127 lines
4.9 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 <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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JS_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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Base::initialize(realm);
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set_prototype(&Bindings::ensure_web_prototype<Bindings::SVGEllipseElementPrototype>(realm, "SVGEllipseElement"));
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}
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void SVGEllipseElement::attribute_changed(FlyString const& name, Optional<String> const& value)
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{
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SVGGeometryElement::attribute_changed(name, value);
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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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m_path.clear();
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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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m_path.clear();
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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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m_path.clear();
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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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m_path.clear();
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}
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}
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Gfx::Path& SVGEllipseElement::get_path()
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{
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if (m_path.has_value())
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return m_path.value();
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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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m_path = move(path);
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return m_path.value();
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}
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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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m_path = move(path);
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return m_path.value();
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}
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// https://www.w3.org/TR/SVG11/shapes.html#EllipseElementCXAttribute
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JS::NonnullGCPtr<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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JS::NonnullGCPtr<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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JS::NonnullGCPtr<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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JS::NonnullGCPtr<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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