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LibWeb: Move CSS::EdgeRect into its own files

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Also remove the unused StyleValue::to_rect() because an EdgeRect is only
ever held by a RectStyleValue.
This commit is contained in:
Sam Atkins 2023-03-30 14:22:39 +01:00 • committed by Andreas Kling
parent b3a7a00ccf
commit bcebca62d3
9 changed files with 69 additions and 38 deletions
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39
Userland/Libraries/LibWeb/CSS/EdgeRect.cpp Normal file
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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
* Copyright (c) 2022-2023, MacDue <macdue@dueutil.tech>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "EdgeRect.h"
namespace Web::CSS {
// https://www.w3.org/TR/CSS2/visufx.html#value-def-shape
Gfx::FloatRect EdgeRect::resolved(Layout::Node const& layout_node, Gfx::FloatRect border_box) const
{
// In CSS 2.1, the only valid <shape> value is: rect(<top>, <right>, <bottom>, <left>) where
// <top> and <bottom> specify offsets from the top border edge of the box, and <right>, and
// <left> specify offsets from the left border edge of the box.
// The value 'auto' means that a given edge of the clipping region will be the same as the edge
// of the element's generated border box (i.e., 'auto' means the same as '0' for <top> and
// <left>, the same as the used value of the height plus the sum of vertical padding and border
// widths for <bottom>, and the same as the used value of the width plus the sum of the
// horizontal padding and border widths for <right>, such that four 'auto' values result in the
// clipping region being the same as the element's border box).
auto left = border_box.left() + (left_edge.is_auto() ? 0 : left_edge.to_px(layout_node)).value();
auto top = border_box.top() + (top_edge.is_auto() ? 0 : top_edge.to_px(layout_node)).value();
auto right = border_box.left() + (right_edge.is_auto() ? border_box.width() : right_edge.to_px(layout_node)).value();
auto bottom = border_box.top() + (bottom_edge.is_auto() ? border_box.height() : bottom_edge.to_px(layout_node)).value();
return Gfx::FloatRect {
left,
top,
right - left,
bottom - top
};
}
}