servo/components/style/values/computed/basic_shape.rs
Ting-Yu Lin 923ffcf2cc style: Support shape-image: <image>
MozReview-Commit-ID: GSCZIMEpCS2
2017-11-29 11:27:31 +08:00

62 lines
2.3 KiB
Rust

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
//! CSS handling for the computed value of
//! [`basic-shape`][basic-shape]s
//!
//! [basic-shape]: https://drafts.csswg.org/css-shapes/#typedef-basic-shape
use std::fmt;
use style_traits::ToCss;
use values::computed::{LengthOrPercentage, ComputedUrl, Image};
use values::generics::basic_shape::{BasicShape as GenericBasicShape};
use values::generics::basic_shape::{Circle as GenericCircle, ClippingShape as GenericClippingShape};
use values::generics::basic_shape::{Ellipse as GenericEllipse, FloatAreaShape as GenericFloatAreaShape};
use values::generics::basic_shape::{InsetRect as GenericInsetRect, ShapeRadius as GenericShapeRadius};
/// A computed clipping shape.
pub type ClippingShape = GenericClippingShape<BasicShape, ComputedUrl>;
/// A computed float area shape.
pub type FloatAreaShape = GenericFloatAreaShape<BasicShape, Image>;
/// A computed basic shape.
pub type BasicShape = GenericBasicShape<LengthOrPercentage, LengthOrPercentage, LengthOrPercentage>;
/// The computed value of `inset()`
pub type InsetRect = GenericInsetRect<LengthOrPercentage>;
/// A computed circle.
pub type Circle = GenericCircle<LengthOrPercentage, LengthOrPercentage, LengthOrPercentage>;
/// A computed ellipse.
pub type Ellipse = GenericEllipse<LengthOrPercentage, LengthOrPercentage, LengthOrPercentage>;
/// The computed value of `ShapeRadius`
pub type ShapeRadius = GenericShapeRadius<LengthOrPercentage>;
impl ToCss for Circle {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
dest.write_str("circle(")?;
self.radius.to_css(dest)?;
dest.write_str(" at ")?;
self.position.to_css(dest)?;
dest.write_str(")")
}
}
impl ToCss for Ellipse {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
dest.write_str("ellipse(")?;
if (self.semiaxis_x, self.semiaxis_y) != Default::default() {
self.semiaxis_x.to_css(dest)?;
dest.write_str(" ")?;
self.semiaxis_y.to_css(dest)?;
dest.write_str(" ")?;
}
dest.write_str("at ")?;
self.position.to_css(dest)?;
dest.write_str(")")
}
}