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a27d269721
Previously, some StyleValues created a large number of intermediate strings during serialization. Passing a StringBUilder into the serialization function allows us to avoid a large number of these unnecessary allocations.
48 lines
1.7 KiB
C++
48 lines
1.7 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.org>
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* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
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* Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
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* Copyright (c) 2022-2023, MacDue <macdue@dueutil.tech>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "PositionStyleValue.h"
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namespace Web::CSS {
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bool PositionStyleValue::is_center(SerializationMode mode) const
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{
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return edge_x()->is_center(mode) && edge_y()->is_center(mode);
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}
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CSSPixelPoint PositionStyleValue::resolved(Layout::Node const& node, CSSPixelRect const& rect) const
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{
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// Note: A preset + a none default x/y_relative_to is impossible in the syntax (and makes little sense)
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CSSPixels x = LengthPercentage::from_style_value(m_properties.edge_x->offset()).to_px(node, rect.width());
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CSSPixels y = LengthPercentage::from_style_value(m_properties.edge_y->offset()).to_px(node, rect.height());
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return CSSPixelPoint { rect.x() + x, rect.y() + y };
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}
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ValueComparingNonnullRefPtr<PositionStyleValue const> PositionStyleValue::with_resolved_keywords() const
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{
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return PositionStyleValue::create(
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edge_x()->with_resolved_keywords(),
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edge_y()->with_resolved_keywords());
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}
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ValueComparingNonnullRefPtr<StyleValue const> PositionStyleValue::absolutized(ComputationContext const& computation_context) const
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{
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return PositionStyleValue::create(
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edge_x()->absolutized(computation_context)->as_edge(),
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edge_y()->absolutized(computation_context)->as_edge());
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}
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void PositionStyleValue::serialize(StringBuilder& builder, SerializationMode mode) const
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{
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m_properties.edge_x->serialize(builder, mode);
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builder.append(' ');
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m_properties.edge_y->serialize(builder, mode);
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}
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}
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