6f433c8656
This is a monster patch that turns all EventTargets into GC-allocated PlatformObjects. Their C++ wrapper classes are removed, and the LibJS garbage collector is now responsible for their lifetimes. There's a fair amount of hacks and band-aids in this patch, and we'll have a lot of cleanup to do after this.
121 lines
4.6 KiB
C++
121 lines
4.6 KiB
C++
/*
|
|
* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibWeb/Bindings/SVGEllipseElementPrototype.h>
|
|
#include <LibWeb/HTML/Window.h>
|
|
#include <LibWeb/SVG/AttributeNames.h>
|
|
#include <LibWeb/SVG/AttributeParser.h>
|
|
#include <LibWeb/SVG/SVGEllipseElement.h>
|
|
|
|
namespace Web::SVG {
|
|
|
|
SVGEllipseElement::SVGEllipseElement(DOM::Document& document, DOM::QualifiedName qualified_name)
|
|
: SVGGeometryElement(document, qualified_name)
|
|
{
|
|
set_prototype(&window().ensure_web_prototype<Bindings::SVGEllipseElementPrototype>("SVGEllipseElement"));
|
|
}
|
|
|
|
void SVGEllipseElement::parse_attribute(FlyString const& name, String const& value)
|
|
{
|
|
SVGGeometryElement::parse_attribute(name, value);
|
|
|
|
if (name == SVG::AttributeNames::cx) {
|
|
m_center_x = AttributeParser::parse_coordinate(value);
|
|
m_path.clear();
|
|
} else if (name == SVG::AttributeNames::cy) {
|
|
m_center_y = AttributeParser::parse_coordinate(value);
|
|
m_path.clear();
|
|
} else if (name == SVG::AttributeNames::rx) {
|
|
m_radius_x = AttributeParser::parse_positive_length(value);
|
|
m_path.clear();
|
|
} else if (name == SVG::AttributeNames::ry) {
|
|
m_radius_y = AttributeParser::parse_positive_length(value);
|
|
m_path.clear();
|
|
}
|
|
}
|
|
|
|
Gfx::Path& SVGEllipseElement::get_path()
|
|
{
|
|
if (m_path.has_value())
|
|
return m_path.value();
|
|
|
|
float rx = m_radius_x.value_or(0);
|
|
float ry = m_radius_y.value_or(0);
|
|
float cx = m_center_x.value_or(0);
|
|
float cy = m_center_y.value_or(0);
|
|
Gfx::Path path;
|
|
|
|
// A computed value of zero for either dimension, or a computed value of auto for both dimensions, disables rendering of the element.
|
|
if (rx == 0 || ry == 0) {
|
|
m_path = move(path);
|
|
return m_path.value();
|
|
}
|
|
|
|
Gfx::FloatPoint radii = { rx, ry };
|
|
double x_axis_rotation = 0;
|
|
bool large_arc = false;
|
|
bool sweep = true; // Note: Spec says it should be false, but it's wrong. https://github.com/w3c/svgwg/issues/765
|
|
|
|
// 1. A move-to command to the point cx+rx,cy;
|
|
path.move_to({ cx + rx, cy });
|
|
|
|
// 2. arc to cx,cy+ry;
|
|
path.elliptical_arc_to({ cx, cy + ry }, radii, x_axis_rotation, large_arc, sweep);
|
|
|
|
// 3. arc to cx-rx,cy;
|
|
path.elliptical_arc_to({ cx - rx, cy }, radii, x_axis_rotation, large_arc, sweep);
|
|
|
|
// 4. arc to cx,cy-ry;
|
|
path.elliptical_arc_to({ cx, cy - ry }, radii, x_axis_rotation, large_arc, sweep);
|
|
|
|
// 5. arc with a segment-completing close path operation.
|
|
path.elliptical_arc_to({ cx + rx, cy }, radii, x_axis_rotation, large_arc, sweep);
|
|
|
|
m_path = move(path);
|
|
return m_path.value();
|
|
}
|
|
|
|
// https://www.w3.org/TR/SVG11/shapes.html#EllipseElementCXAttribute
|
|
NonnullRefPtr<SVGAnimatedLength> SVGEllipseElement::cx() const
|
|
{
|
|
// FIXME: Populate the unit type when it is parsed (0 here is "unknown").
|
|
// FIXME: Create a proper animated value when animations are supported.
|
|
auto base_length = SVGLength::create(0, m_center_x.value_or(0));
|
|
auto anim_length = SVGLength::create(0, m_center_x.value_or(0));
|
|
return SVGAnimatedLength::create(move(base_length), move(anim_length));
|
|
}
|
|
|
|
// https://www.w3.org/TR/SVG11/shapes.html#EllipseElementCYAttribute
|
|
NonnullRefPtr<SVGAnimatedLength> SVGEllipseElement::cy() const
|
|
{
|
|
// FIXME: Populate the unit type when it is parsed (0 here is "unknown").
|
|
// FIXME: Create a proper animated value when animations are supported.
|
|
auto base_length = SVGLength::create(0, m_center_y.value_or(0));
|
|
auto anim_length = SVGLength::create(0, m_center_y.value_or(0));
|
|
return SVGAnimatedLength::create(move(base_length), move(anim_length));
|
|
}
|
|
|
|
// https://www.w3.org/TR/SVG11/shapes.html#EllipseElementRXAttribute
|
|
NonnullRefPtr<SVGAnimatedLength> SVGEllipseElement::rx() const
|
|
{
|
|
// FIXME: Populate the unit type when it is parsed (0 here is "unknown").
|
|
// FIXME: Create a proper animated value when animations are supported.
|
|
auto base_length = SVGLength::create(0, m_radius_x.value_or(0));
|
|
auto anim_length = SVGLength::create(0, m_radius_x.value_or(0));
|
|
return SVGAnimatedLength::create(move(base_length), move(anim_length));
|
|
}
|
|
|
|
// https://www.w3.org/TR/SVG11/shapes.html#EllipseElementRYAttribute
|
|
NonnullRefPtr<SVGAnimatedLength> SVGEllipseElement::ry() const
|
|
{
|
|
// FIXME: Populate the unit type when it is parsed (0 here is "unknown").
|
|
// FIXME: Create a proper animated value when animations are supported.
|
|
auto base_length = SVGLength::create(0, m_radius_y.value_or(0));
|
|
auto anim_length = SVGLength::create(0, m_radius_y.value_or(0));
|
|
return SVGAnimatedLength::create(move(base_length), move(anim_length));
|
|
}
|
|
|
|
}
|