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Auto merge of #7496 - servo:calc_, r=SimonSapin

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Implement CSS3 Calc

This is #7185 with one commit added to make it build merged with master, which got support for the `ch` unit in the meantime.

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This commit is contained in:
bors-servo 2015-09-02 02:33:18 -06:00
commit a547ae6826
21 changed files with 873 additions and 63 deletions
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2
components/layout/display_list_builder.rs
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@ -1959,6 +1959,8 @@ fn position_to_offset(position: LengthOrPercentage, Au(total_length): Au) -> f32
fmin(1.0, (length as f32) / (total_length as f32))
}
LengthOrPercentage::Percentage(percentage) => percentage as f32,
LengthOrPercentage::Calc(calc) =>
fmin(1.0, calc.percentage() + (calc.length().0 as f32) / (total_length as f32)),
}
}