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Implement support for the drop-shadow filter (#30439)

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* Implement support for `drop-shadow`

* Clean up remnant from early attempts

* Fix misleading comments on GenericSimpleShadow
If Servo-specific `style` changes will need to be upstreamed anyway, I might as well fix a thing that had thrown me off!

* Revert "Fix misleading comments on GenericSimpleShadow"

This reverts commit cdc810b826ac082041adc212c24649ee3b86ca0a.

* Clean up an import

* Update test expectations

* Fix missing expectation on Layout 2013
This commit is contained in:
Ennui Langeweile 2023-10-04 08:32:45 -03:00 • committed by GitHub
parent 8436002383
commit f7c340f881
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23 changed files with 51 additions and 355 deletions
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19
components/layout/display_list/conversions.rs
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@ -17,6 +17,11 @@ pub trait ToLayout {
fn to_layout(&self) -> Self::Type;
}
pub trait FilterToLayout {
type Type;
fn to_layout(&self, current_color: &RGBA) -> Self::Type;
}
impl ToLayout for BorderStyle {
type Type = wr::BorderStyle;
fn to_layout(&self) -> Self::Type {
@ -35,9 +40,9 @@ impl ToLayout for BorderStyle {
}
}
impl ToLayout for Filter {
impl FilterToLayout for Filter {
type Type = wr::FilterOp;
fn to_layout(&self) -> Self::Type {
fn to_layout(&self, current_color: &RGBA) -> Self::Type {
match *self {
Filter::Blur(radius) => wr::FilterOp::Blur(radius.px(), radius.px()),
Filter::Brightness(amount) => wr::FilterOp::Brightness(amount.0),
@ -48,8 +53,14 @@ impl ToLayout for Filter {
Filter::Opacity(amount) => wr::FilterOp::Opacity(amount.0.into(), amount.0),
Filter::Saturate(amount) => wr::FilterOp::Saturate(amount.0),
Filter::Sepia(amount) => wr::FilterOp::Sepia(amount.0),
// Statically check that DropShadow is impossible.
Filter::DropShadow(ref shadow) => match *shadow {},
Filter::DropShadow(ref shadow) => wr::FilterOp::DropShadow(wr::Shadow {
blur_radius: shadow.blur.px(),
offset: wr::units::LayoutVector2D::new(
shadow.horizontal.px(),
shadow.vertical.px(),
),
color: shadow.color.clone().into_rgba(*current_color).to_layout(),
}),
// Statically check that Url is impossible.
Filter::Url(ref url) => match *url {},
}