mirror of
https://github.com/LadybirdBrowser/ladybird
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fd44da6829
Previously, the LibWeb bindings generator would output multiple per interface files like Prototype/Constructor/Namespace/GlobalMixin depending on the contents of that IDL file. This complicates the build system as it means that it does not know what files will be generated without knowledge of the contents of that IDL file. Instead, for each IDL file only generate a single Bindings/<IDLFile>.h and Bindings/<IDLFile>.cpp.
120 lines
4.9 KiB
C++
120 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 <LibGfx/Path.h>
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#include <LibWeb/Bindings/SVGEllipseElement.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), SVGLength::ReadOnly::No);
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auto anim_length = SVGLength::create(realm(), 0, m_center_x.value_or(0), SVGLength::ReadOnly::Yes);
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return SVGAnimatedLength::create(realm(), base_length, 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), SVGLength::ReadOnly::No);
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auto anim_length = SVGLength::create(realm(), 0, m_center_y.value_or(0), SVGLength::ReadOnly::Yes);
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return SVGAnimatedLength::create(realm(), base_length, 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), SVGLength::ReadOnly::No);
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auto anim_length = SVGLength::create(realm(), 0, m_radius_x.value_or(0), SVGLength::ReadOnly::Yes);
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return SVGAnimatedLength::create(realm(), base_length, 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), SVGLength::ReadOnly::No);
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auto anim_length = SVGLength::create(realm(), 0, m_radius_y.value_or(0), SVGLength::ReadOnly::Yes);
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return SVGAnimatedLength::create(realm(), base_length, anim_length);
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}
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}
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