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LibWeb+WebContent: Forbid access to underlying type of CSSPixels

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Although DistinctNumeric, which is supposed to abstract the underlying
type, was used to represent CSSPixels, we have a whole bunch of places
in the layout code that assume CSSPixels::value() returns a
floating-point type. This assumption makes it difficult to replace the
underlying type in CSSPixels with a non-floating type.

To make it easier to transition CSSPixels to fixed-point math, one step
we can take is to prevent access to the underlying type using value()
and instead use explicit conversions with the to_float(), to_double(),
and to_int() methods.
This commit is contained in:
Aliaksandr Kalenik 2023-06-12 21:37:35 +03:00 • committed by Andreas Kling
parent 5a54c686a7
commit 147c3b3d97
43 changed files with 340 additions and 220 deletions
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2
Userland/Libraries/LibWeb/CSS/StyleValues/CalculatedStyleValue.cpp
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@ -30,7 +30,7 @@ static double resolve_value(CalculatedStyleValue::CalculationResult::Value value
[](Number const& number) { return number.value(); },
[](Angle const& angle) { return angle.to_degrees(); },
[](Frequency const& frequency) { return frequency.to_hertz(); },
[&context](Length const& length) { return length.to_px(*context).value(); },
[&context](Length const& length) { return length.to_px(*context).to_double(); },
[](Percentage const& percentage) { return percentage.value(); },
[](Time const& time) { return time.to_seconds(); });
};