mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-20 09:49:15 +03:00
40 lines
1.8 KiB
C++
40 lines
1.8 KiB
C++
/*
|
|
* 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
|
|
CSSPixelRect EdgeRect::resolved(Layout::Node const& layout_node, CSSPixelRect 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));
|
|
auto top = border_box.top() + (top_edge.is_auto() ? 0 : top_edge.to_px(layout_node));
|
|
auto right = border_box.left() + (right_edge.is_auto() ? border_box.width() : right_edge.to_px(layout_node));
|
|
auto bottom = border_box.top() + (bottom_edge.is_auto() ? border_box.height() : bottom_edge.to_px(layout_node));
|
|
return CSSPixelRect {
|
|
left,
|
|
top,
|
|
right - left,
|
|
bottom - top
|
|
};
|
|
}
|
|
|
|
}
|