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LibWeb: Remove 3 decimal places rounding hack in Length::percentage_of

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CSSPixels uses fixed point now.
This commit is contained in:
Andi Gallo 2023-08-11 06:20:48 +00:00 committed by Sam Atkins
parent f2c60b7716
commit a426263dee
Notes: sideshowbarker 2024-07-17 10:31:19 +09:00 
Author: https://github.com/axgallo
Commit: https://github.com/SerenityOS/serenity/commit/a426263dee
Pull-request: https://github.com/SerenityOS/serenity/pull/20489
Reviewed-by: https://github.com/awesomekling ✅
2 changed files with 9 additions and 17 deletions
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16
Tests/LibWeb/Layout/expected/grid/min-max-content.txt
View file

@ -4,23 +4,23 @@ Viewport <#document> at (0,0) content-size 800x600 children: not-inline
Box <div.grid-container> at (8,8) content-size 784x17.46875 [GFC] children: not-inline
BlockContainer <(anonymous)> (not painted) [BFC] children: inline
TextNode <#text>
BlockContainer <div.grid-item> at (8,8) content-size 46.890625x17.46875 [BFC] children: inline
BlockContainer <div.grid-item> at (8,8) content-size 46.875x17.46875 [BFC] children: inline
line 0 width: 93.765625, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 11, rect: [8,8 93.765625x17.46875]
"min-content"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) [BFC] children: inline
TextNode <#text>
BlockContainer <div.grid-item> at (54.890625,8) content-size 98.640625x17.46875 [BFC] children: inline
BlockContainer <div.grid-item> at (54.875,8) content-size 98.640625x17.46875 [BFC] children: inline
line 0 width: 98.640625, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 11, rect: [54.890625,8 98.640625x17.46875]
frag 0 from TextNode start: 0, length: 11, rect: [54.875,8 98.640625x17.46875]
"max-content"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) [BFC] children: inline
TextNode <#text>
BlockContainer <div.grid-item> at (153.53125,8) content-size 638.46875x17.46875 [BFC] children: inline
BlockContainer <div.grid-item> at (153.515625,8) content-size 638.484375x17.46875 [BFC] children: inline
line 0 width: 21.609375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 3, rect: [153.53125,8 21.609375x17.46875]
frag 0 from TextNode start: 0, length: 3, rect: [153.515625,8 21.609375x17.46875]
"1fr"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) [BFC] children: inline
@ -30,9 +30,9 @@ PaintableWithLines (Viewport<#document>) [0,0 800x600]
PaintableWithLines (BlockContainer<HTML>) [0,0 800x600]
PaintableWithLines (BlockContainer<BODY>) [8,8 784x17.46875]
PaintableBox (Box<DIV>.grid-container) [8,8 784x17.46875]
PaintableWithLines (BlockContainer<DIV>.grid-item) [8,8 46.890625x17.46875] overflow: [8,8 93.765625x17.46875]
PaintableWithLines (BlockContainer<DIV>.grid-item) [8,8 46.875x17.46875] overflow: [8,8 93.765625x17.46875]
TextPaintable (TextNode<#text>)
PaintableWithLines (BlockContainer<DIV>.grid-item) [54.890625,8 98.640625x17.46875]
PaintableWithLines (BlockContainer<DIV>.grid-item) [54.875,8 98.640625x17.46875]
TextPaintable (TextNode<#text>)
PaintableWithLines (BlockContainer<DIV>.grid-item) [153.53125,8 638.46875x17.46875]
PaintableWithLines (BlockContainer<DIV>.grid-item) [153.515625,8 638.484375x17.46875]
TextPaintable (TextNode<#text>)

10
Userland/Libraries/LibWeb/CSS/Length.cpp
View file

@ -59,15 +59,7 @@ Length Length::percentage_of(Percentage const& percentage) const
return *this;
}
// HACK: We round to 3 decimal places to emulate what happens in browsers that used fixed point math.
// FIXME: Remove this when converting CSSPixels to a fixed-point type.
// https://github.com/SerenityOS/serenity/issues/18566
auto value = percentage.as_fraction() * raw_value();
value *= 1000;
value = round(value);
value /= 1000;
return Length { value, m_type };
return Length { percentage.as_fraction() * raw_value(), m_type };
}
CSSPixels Length::font_relative_length_to_px(Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const