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LibWeb: Implement CSS atan2()

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stelar7 2023-05-28 11:19:10 +02:00 • committed by Sam Atkins
parent 1aa84dfddd
commit a9a62ad8c9
4 changed files with 126 additions and 0 deletions
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63
Userland/Libraries/LibWeb/CSS/StyleValues/CalculatedStyleValue.cpp
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@ -1174,6 +1174,69 @@ ErrorOr<void> AtanCalculationNode::dump(StringBuilder& builder, int indent) cons
return {};
}
ErrorOr<NonnullOwnPtr<Atan2CalculationNode>> Atan2CalculationNode::create(NonnullOwnPtr<CalculationNode> y, NonnullOwnPtr<CalculationNode> x)
{
return adopt_nonnull_own_or_enomem(new (nothrow) Atan2CalculationNode(move(y), move(x)));
}
Atan2CalculationNode::Atan2CalculationNode(NonnullOwnPtr<CalculationNode> y, NonnullOwnPtr<CalculationNode> x)
: CalculationNode(Type::Atan2)
, m_y(move(y))
, m_x(move(x))
{
}
Atan2CalculationNode::~Atan2CalculationNode() = default;
ErrorOr<String> Atan2CalculationNode::to_string() const
{
StringBuilder builder;
builder.append("atan2("sv);
builder.append(TRY(m_y->to_string()));
builder.append(", "sv);
builder.append(TRY(m_x->to_string()));
builder.append(")"sv);
return builder.to_string();
}
Optional<CalculatedStyleValue::ResolvedType> Atan2CalculationNode::resolved_type() const
{
return CalculatedStyleValue::ResolvedType::Angle;
}
bool Atan2CalculationNode::contains_percentage() const
{
return m_y->contains_percentage() || m_x->contains_percentage();
}
CalculatedStyleValue::CalculationResult Atan2CalculationNode::resolve(Optional<Length::ResolutionContext const&> context, CalculatedStyleValue::PercentageBasis const& percentage_basis) const
{
auto node_a = m_y->resolve(context, percentage_basis);
auto node_a_value = resolve_value(node_a.value(), context);
auto node_b = m_x->resolve(context, percentage_basis);
auto node_b_value = resolve_value(node_b.value(), context);
auto result = atan2(node_a_value, node_b_value);
return { Angle(result, Angle::Type::Rad) };
}
ErrorOr<void> Atan2CalculationNode::for_each_child_node(Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const& callback)
{
TRY(m_y->for_each_child_node(callback));
TRY(m_x->for_each_child_node(callback));
TRY(callback(m_y));
TRY(callback(m_x));
return {};
}
ErrorOr<void> Atan2CalculationNode::dump(StringBuilder& builder, int indent) const
{
TRY(builder.try_appendff("{: >{}}ATAN2: {}\n", "", indent, TRY(to_string())));
return {};
}
void CalculatedStyleValue::CalculationResult::add(CalculationResult const& other, Optional<Length::ResolutionContext const&> context, PercentageBasis const& percentage_basis)
{
add_or_subtract_internal(SumOperation::Add, other, context, percentage_basis);