ladybird/Libraries/LibWeb/SVG/SVGLineElement.cpp
Shannon Booth f87041bf3a LibGC+Everywhere: Factor out a LibGC from LibJS
Resulting in a massive rename across almost everywhere! Alongside the
namespace change, we now have the following names:

 * JS::NonnullGCPtr -> GC::Ref
 * JS::GCPtr -> GC::Ptr
 * JS::HeapFunction -> GC::Function
 * JS::CellImpl -> GC::Cell
 * JS::Handle -> GC::Root
2024-11-15 14:49:20 +01:00

104 lines
4.3 KiB
C++

/*
* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibGfx/Path.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/Bindings/SVGLineElementPrototype.h>
#include <LibWeb/SVG/AttributeNames.h>
#include <LibWeb/SVG/AttributeParser.h>
#include <LibWeb/SVG/SVGLineElement.h>
namespace Web::SVG {
GC_DEFINE_ALLOCATOR(SVGLineElement);
SVGLineElement::SVGLineElement(DOM::Document& document, DOM::QualifiedName qualified_name)
: SVGGeometryElement(document, qualified_name)
{
}
void SVGLineElement::initialize(JS::Realm& realm)
{
Base::initialize(realm);
WEB_SET_PROTOTYPE_FOR_INTERFACE(SVGLineElement);
}
void SVGLineElement::attribute_changed(FlyString const& name, Optional<String> const& old_value, Optional<String> const& value, Optional<FlyString> const& namespace_)
{
Base::attribute_changed(name, old_value, value, namespace_);
if (name == SVG::AttributeNames::x1) {
m_x1 = AttributeParser::parse_number_percentage(value.value_or(String {}));
} else if (name == SVG::AttributeNames::y1) {
m_y1 = AttributeParser::parse_number_percentage(value.value_or(String {}));
} else if (name == SVG::AttributeNames::x2) {
m_x2 = AttributeParser::parse_number_percentage(value.value_or(String {}));
} else if (name == SVG::AttributeNames::y2) {
m_y2 = AttributeParser::parse_number_percentage(value.value_or(String {}));
}
}
Gfx::Path SVGLineElement::get_path(CSSPixelSize viewport_size)
{
auto const viewport_width = viewport_size.width().to_float();
auto const viewport_height = viewport_size.height().to_float();
Gfx::Path path;
float const x1 = m_x1.value_or({ 0, false }).resolve_relative_to(viewport_width);
float const y1 = m_y1.value_or({ 0, false }).resolve_relative_to(viewport_height);
float const x2 = m_x2.value_or({ 0, false }).resolve_relative_to(viewport_width);
float const y2 = m_y2.value_or({ 0, false }).resolve_relative_to(viewport_height);
// 1. perform an absolute moveto operation to absolute location (x1,y1)
path.move_to({ x1, y1 });
// 2. perform an absolute lineto operation to absolute location (x2,y2)
path.line_to({ x2, y2 });
return path;
}
// https://www.w3.org/TR/SVG11/shapes.html#LineElementX1Attribute
GC::Ref<SVGAnimatedLength> SVGLineElement::x1() 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(realm(), 0, m_x1.value_or({ 0, false }).value());
auto anim_length = SVGLength::create(realm(), 0, m_x1.value_or({ 0, false }).value());
return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
}
// https://www.w3.org/TR/SVG11/shapes.html#LineElementY1Attribute
GC::Ref<SVGAnimatedLength> SVGLineElement::y1() 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(realm(), 0, m_y1.value_or({ 0, false }).value());
auto anim_length = SVGLength::create(realm(), 0, m_y1.value_or({ 0, false }).value());
return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
}
// https://www.w3.org/TR/SVG11/shapes.html#LineElementX2Attribute
GC::Ref<SVGAnimatedLength> SVGLineElement::x2() 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(realm(), 0, m_x2.value_or({ 0, false }).value());
auto anim_length = SVGLength::create(realm(), 0, m_x2.value_or({ 0, false }).value());
return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
}
// https://www.w3.org/TR/SVG11/shapes.html#LineElementY2Attribute
GC::Ref<SVGAnimatedLength> SVGLineElement::y2() 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(realm(), 0, m_y2.value_or({ 0, false }).value());
auto anim_length = SVGLength::create(realm(), 0, m_y2.value_or({ 0, false }).value());
return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
}
}