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Introduce CSSPixelLength and update NonNegativeLength.

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First, we define computed::CSSPixelLength which contains a CSSFloat, a
pixel value, and then we replace computed::Length with CSSPixelLength.
Therefore, the |ComputedValue| of NoCalcLength, AbsoluteLength,
FontRelativeLength, ViewportPercentageLength, CharacterWidth, and
PhysicalLength is CSSPixelLength.

Besides, we drop NonNegativeAu, and replace computed::NonNegativeLength
with NonNegative<computed::Length>. (i.e. NonNegative<CSSPixelLength>)
This commit is contained in:
Boris Chiou 2017-09-13 14:26:51 +08:00
parent cad3aff508
commit a949e2a057
40 changed files with 502 additions and 406 deletions
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9
components/layout/construct.rs
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@ -14,7 +14,6 @@
#![deny(unsafe_code)]
use ServoArc;
use app_units::Au;
use block::BlockFlow;
use context::{LayoutContext, with_thread_local_font_context};
use data::{HAS_NEWLY_CONSTRUCTED_FLOW, LayoutData};
@ -1852,10 +1851,10 @@ impl ComputedValueUtils for ComputedValues {
!padding.padding_right.is_definitely_zero() ||
!padding.padding_bottom.is_definitely_zero() ||
!padding.padding_left.is_definitely_zero() ||
border.border_top_width.0 != Au(0) ||
border.border_right_width.0 != Au(0) ||
border.border_bottom_width.0 != Au(0) ||
border.border_left_width.0 != Au(0)
border.border_top_width.px() != 0. ||
border.border_right_width.px() != 0. ||
border.border_bottom_width.px() != 0. ||
border.border_left_width.px() != 0.
}
}