ladybird/Libraries/LibWeb/CSS/StyleValues/PositionStyleValue.cpp

37 lines
1.4 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.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
*/
#include "PositionStyleValue.h"
namespace Web::CSS {
bool PositionStyleValue::is_center() const
{
return (edge_x()->offset().is_percentage() && edge_x()->offset().percentage() == Percentage { 50 })
&& (edge_y()->offset().is_percentage() && edge_y()->offset().percentage() == Percentage { 50 });
}
CSSPixelPoint PositionStyleValue::resolved(Layout::Node const& node, CSSPixelRect const& rect) const
{
// Note: A preset + a none default x/y_relative_to is impossible in the syntax (and makes little sense)
CSSPixels x = m_properties.edge_x->offset().to_px(node, rect.width());
CSSPixels y = m_properties.edge_y->offset().to_px(node, rect.height());
if (m_properties.edge_x->edge() == PositionEdge::Right)
x = rect.width() - x;
if (m_properties.edge_y->edge() == PositionEdge::Bottom)
y = rect.height() - y;
return CSSPixelPoint { rect.x() + x, rect.y() + y };
}
String PositionStyleValue::to_string(SerializationMode mode) const
{
return MUST(String::formatted("{} {}", m_properties.edge_x->to_string(mode), m_properties.edge_y->to_string(mode)));
}
}