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99 lines
3.2 KiB
Rust
99 lines
3.2 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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//! CSS handling for the computed value of
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//! [`basic-shape`][basic-shape]s
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//!
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//! [basic-shape]: https://drafts.csswg.org/css-shapes/#typedef-basic-shape
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use std::fmt;
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use style_traits::ToCss;
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use values::computed::LengthOrPercentage;
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use values::computed::position::Position;
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use values::generics::basic_shape::{BorderRadius as GenericBorderRadius, ShapeRadius as GenericShapeRadius};
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use values::generics::basic_shape::{InsetRect as GenericInsetRect, Polygon as GenericPolygon, ShapeSource};
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pub use values::generics::basic_shape::FillRule;
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pub use values::specified::basic_shape::{self, GeometryBox, ShapeBox};
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/// The computed value used by `clip-path`
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pub type ShapeWithGeometryBox = ShapeSource<BasicShape, GeometryBox>;
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/// The computed value used by `shape-outside`
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pub type ShapeWithShapeBox = ShapeSource<BasicShape, ShapeBox>;
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#[derive(Clone, PartialEq, Debug)]
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#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
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#[allow(missing_docs)]
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pub enum BasicShape {
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Inset(InsetRect),
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Circle(Circle),
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Ellipse(Ellipse),
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Polygon(Polygon),
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}
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impl ToCss for BasicShape {
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fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
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match *self {
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BasicShape::Inset(ref rect) => rect.to_css(dest),
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BasicShape::Circle(ref circle) => circle.to_css(dest),
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BasicShape::Ellipse(ref e) => e.to_css(dest),
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BasicShape::Polygon(ref poly) => poly.to_css(dest),
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}
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}
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}
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/// The computed value of `inset()`
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pub type InsetRect = GenericInsetRect<LengthOrPercentage>;
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#[derive(Clone, PartialEq, Copy, Debug)]
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#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
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#[allow(missing_docs)]
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pub struct Circle {
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pub radius: ShapeRadius,
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pub position: Position,
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}
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impl ToCss for Circle {
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fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
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try!(self.radius.to_css(dest));
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try!(dest.write_str(" at "));
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self.position.to_css(dest)
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}
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}
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#[derive(Clone, PartialEq, Copy, Debug)]
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#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
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#[allow(missing_docs)]
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pub struct Ellipse {
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pub semiaxis_x: ShapeRadius,
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pub semiaxis_y: ShapeRadius,
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pub position: Position,
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}
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impl ToCss for Ellipse {
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fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
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try!(dest.write_str("ellipse("));
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if (self.semiaxis_x, self.semiaxis_y) != Default::default() {
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try!(self.semiaxis_x.to_css(dest));
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try!(dest.write_str(" "));
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try!(self.semiaxis_y.to_css(dest));
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try!(dest.write_str(" "));
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}
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try!(dest.write_str("at "));
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try!(self.position.to_css(dest));
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dest.write_str(")")
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}
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}
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/// The computed value of `Polygon`
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pub type Polygon = GenericPolygon<LengthOrPercentage>;
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/// The computed value of `BorderRadius`
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pub type BorderRadius = GenericBorderRadius<LengthOrPercentage>;
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/// The computed value of `ShapeRadius`
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pub type ShapeRadius = GenericShapeRadius<LengthOrPercentage>;
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impl Copy for ShapeRadius {}
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