ladybird/Userland/Libraries/LibWeb/CSS/StyleValues/PositionStyleValue.h
Sam Atkins 2ae53bc5eb LibWeb: Add some helpers to PositionStyleValue
Both of these are needed by the gradient style values.
2023-11-07 22:00:24 +00:00

56 lines
2.1 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
* Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2022-2023, MacDue <macdue@dueutil.tech>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/CSS/Enums.h>
#include <LibWeb/CSS/PercentageOr.h>
#include <LibWeb/CSS/StyleValue.h>
#include <LibWeb/CSS/StyleValues/EdgeStyleValue.h>
namespace Web::CSS {
class PositionStyleValue final : public StyleValueWithDefaultOperators<PositionStyleValue> {
public:
static ValueComparingNonnullRefPtr<PositionStyleValue> create(ValueComparingNonnullRefPtr<EdgeStyleValue> edge_x, ValueComparingNonnullRefPtr<EdgeStyleValue> edge_y)
{
return adopt_ref(*new (nothrow) PositionStyleValue(move(edge_x), move(edge_y)));
}
static ValueComparingNonnullRefPtr<PositionStyleValue> create_center()
{
return adopt_ref(*new (nothrow) PositionStyleValue(
EdgeStyleValue::create(PositionEdge::Left, Percentage { 50 }),
EdgeStyleValue::create(PositionEdge::Top, Percentage { 50 })));
}
virtual ~PositionStyleValue() override = default;
ValueComparingNonnullRefPtr<EdgeStyleValue> edge_x() const { return m_properties.edge_x; }
ValueComparingNonnullRefPtr<EdgeStyleValue> edge_y() const { return m_properties.edge_y; }
bool is_center() const;
CSSPixelPoint resolved(Layout::Node const&, CSSPixelRect const&) const;
virtual String to_string() const override;
bool properties_equal(PositionStyleValue const& other) const { return m_properties == other.m_properties; }
private:
PositionStyleValue(ValueComparingNonnullRefPtr<EdgeStyleValue> edge_x, ValueComparingNonnullRefPtr<EdgeStyleValue> edge_y)
: StyleValueWithDefaultOperators(Type::Position)
, m_properties { .edge_x = edge_x, .edge_y = edge_y }
{
}
struct Properties {
ValueComparingNonnullRefPtr<EdgeStyleValue> edge_x;
ValueComparingNonnullRefPtr<EdgeStyleValue> edge_y;
bool operator==(Properties const&) const = default;
} m_properties;
};
}