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style: Avoid manual paint-order glue code.

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Differential Revision: https://phabricator.services.mozilla.com/D42913
This commit is contained in:
Emilio Cobos Álvarez 2019-08-21 19:47:53 +00:00
parent 14c7e133ad
commit 432b417d98
2 changed files with 6 additions and 16 deletions
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13
components/style/properties/gecko.mako.rs
View file

@ -2599,18 +2599,7 @@ clip-path
</%self:impl_trait>
<%self:impl_trait style_struct_name="InheritedSVG"
skip_longhands="paint-order stroke-dasharray">
pub fn set_paint_order(&mut self, v: longhands::paint_order::computed_value::T) {
self.gecko.mPaintOrder = v.0;
}
${impl_simple_copy('paint_order', 'mPaintOrder')}
pub fn clone_paint_order(&self) -> longhands::paint_order::computed_value::T {
use crate::properties::longhands::paint_order::computed_value::T;
T(self.gecko.mPaintOrder)
}
skip_longhands="stroke-dasharray">
pub fn set_stroke_dasharray(&mut self, v: longhands::stroke_dasharray::computed_value::T) {
use crate::gecko_bindings::structs::nsStyleSVG_STROKE_DASHARRAY_CONTEXT as CONTEXT_VALUE;
use crate::values::generics::svg::SVGStrokeDashArray;

9
components/style/values/specified/svg.rs
View file

@ -106,13 +106,13 @@ pub enum PaintOrder {
}
/// Number of non-normal components
const PAINT_ORDER_COUNT: u8 = 3;
pub const PAINT_ORDER_COUNT: u8 = 3;
/// Number of bits for each component
const PAINT_ORDER_SHIFT: u8 = 2;
pub const PAINT_ORDER_SHIFT: u8 = 2;
/// Mask with above bits set
const PAINT_ORDER_MASK: u8 = 0b11;
pub const PAINT_ORDER_MASK: u8 = 0b11;
/// The specified value is tree `PaintOrder` values packed into the
/// bitfields below, as a six-bit field, of 3 two-bit pairs
@ -135,6 +135,7 @@ const PAINT_ORDER_MASK: u8 = 0b11;
ToResolvedValue,
ToShmem,
)]
#[repr(transparent)]
pub struct SVGPaintOrder(pub u8);
impl SVGPaintOrder {
@ -146,7 +147,7 @@ impl SVGPaintOrder {
/// Get variant of `paint-order`
pub fn order_at(&self, pos: u8) -> PaintOrder {
// Safe because PaintOrder covers all possible patterns.
unsafe { ::std::mem::transmute((self.0 >> pos * PAINT_ORDER_SHIFT) & PAINT_ORDER_MASK) }
unsafe { std::mem::transmute((self.0 >> pos * PAINT_ORDER_SHIFT) & PAINT_ORDER_MASK) }
}
}