ladybird/Userland/Libraries/LibWeb/SVG/SVGPolylineElement.cpp
Andreas Kling 6f433c8656 LibWeb+LibJS: Make the EventTarget hierarchy (incl. DOM) GC-allocated
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.
2022-09-06 00:27:09 +02:00

55 lines
1.5 KiB
C++

/*
* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Bindings/SVGPolylineElementPrototype.h>
#include <LibWeb/HTML/Window.h>
#include <LibWeb/SVG/AttributeNames.h>
#include <LibWeb/SVG/AttributeParser.h>
#include <LibWeb/SVG/SVGPolylineElement.h>
namespace Web::SVG {
SVGPolylineElement::SVGPolylineElement(DOM::Document& document, DOM::QualifiedName qualified_name)
: SVGGeometryElement(document, qualified_name)
{
set_prototype(&window().ensure_web_prototype<Bindings::SVGPolylineElementPrototype>("SVGPolylineElement"));
}
void SVGPolylineElement::parse_attribute(FlyString const& name, String const& value)
{
SVGGeometryElement::parse_attribute(name, value);
if (name == SVG::AttributeNames::points) {
m_points = AttributeParser::parse_points(value);
m_path.clear();
}
}
Gfx::Path& SVGPolylineElement::get_path()
{
if (m_path.has_value())
return m_path.value();
Gfx::Path path;
if (m_points.is_empty()) {
m_path = move(path);
return m_path.value();
}
// 1. perform an absolute moveto operation to the first coordinate pair in the list of points
path.move_to(m_points.first());
// 2. for each subsequent coordinate pair, perform an absolute lineto operation to that coordinate pair.
for (size_t point_index = 1; point_index < m_points.size(); ++point_index)
path.line_to(m_points[point_index]);
m_path = move(path);
return m_path.value();
}
}