zng::color::gradient

Struct GradientStops

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pub struct GradientStops {
    pub start: ColorStop,
    pub middle: Vec<GradientStop>,
    pub end: ColorStop,
}
Expand description

Stops in a gradient.

Use stops! to create a new instance, you can convert from arrays for simpler gradients.

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§start: ColorStop

First color stop.

§middle: Vec<GradientStop>

Optional stops between start and end.

§end: ColorStop

Last color stop.

Implementations§

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impl GradientStops

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pub fn new(start: impl Into<Rgba>, end: impl Into<Rgba>) -> GradientStops

Gradients stops with two colors from start to end.

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pub fn from_colors<C>(colors: &[C]) -> GradientStops
where C: Into<Rgba> + Copy,

Gradient stops from colors spaced equally.

The stops look like a sequence of positional only color stops but the proportional distribution is pre-calculated.

If less than 2 colors are given, the missing stops are filled with transparent color.

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pub fn from_stripes<C, T>(colors: &[C], transition: T) -> GradientStops
where C: Into<Rgba> + Copy, T: Into<Factor>,

Gradient stops from colors forming stripes of same length.

The transition parameter controls relative length of the transition between two stripes. 1.0 or 100.pct() is the length of a stripe, set to 0.0 to get hard-lines.

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pub fn from_stops<C>(stops: &[C]) -> GradientStops
where C: Into<ColorStop> + Copy,

Gradient stops from color stops.

If less than 2 colors are given, the missing stops are filled with transparent color.

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pub fn set_alpha<A>(&mut self, alpha: A)
where A: Into<RgbaComponent>,

Set the alpha of all colors in the gradient.

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pub fn layout_linear( &self, axis: LayoutAxis, extend_mode: ExtendMode, line: &mut PxLine, render_stops: &mut Vec<GradientStop>, )

Computes the linear gradient in the current LAYOUT context.

The axis value selects the layout axis the offsets layout on.

The render_stops content is replaced with stops with offset in the 0..=1 range.

The line points are moved to accommodate input offsets outside the line bounds.

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pub fn layout_radial( &self, axis: LayoutAxis, extend_mode: ExtendMode, render_stops: &mut Vec<GradientStop>, )

Computes the layout for a radial gradient.

The render_stops content is replace with stops with offset in the 0..=1 range.

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pub fn len(&self) -> usize

Number of stops.

Trait Implementations§

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impl Clone for GradientStops

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fn clone(&self) -> GradientStops

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for GradientStops

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for GradientStops

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fn deserialize<__D>( __deserializer: __D, ) -> Result<GradientStops, <__D as Deserializer<'de>>::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl<L> From<&[(Hsla, L)]> for GradientStops
where L: Into<Length> + Copy,

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impl<L, const N: usize> From<&[(Hsla, L); N]> for GradientStops
where L: Into<Length> + Copy,

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impl<L> From<&[(Hsva, L)]> for GradientStops
where L: Into<Length> + Copy,

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impl<L, const N: usize> From<&[(Hsva, L); N]> for GradientStops
where L: Into<Length> + Copy,

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impl<L> From<&[(Rgba, L)]> for GradientStops
where L: Into<Length> + Copy,

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impl<L, const N: usize> From<&[(Rgba, L); N]> for GradientStops
where L: Into<Length> + Copy,

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impl From<&[Hsla]> for GradientStops

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impl<const N: usize> From<&[Hsla; N]> for GradientStops

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impl From<&[Hsva]> for GradientStops

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impl<const N: usize> From<&[Hsva; N]> for GradientStops

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impl From<&[Rgba]> for GradientStops

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impl<const N: usize> From<&[Rgba; N]> for GradientStops

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impl<L, const N: usize> From<[(Hsla, L); N]> for GradientStops
where L: Into<Length> + Copy,

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impl<L, const N: usize> From<[(Hsva, L); N]> for GradientStops
where L: Into<Length> + Copy,

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impl<L, const N: usize> From<[(Rgba, L); N]> for GradientStops
where L: Into<Length> + Copy,

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impl<const N: usize> From<[Hsla; N]> for GradientStops

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impl<const N: usize> From<[Hsva; N]> for GradientStops

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impl<const N: usize> From<[Rgba; N]> for GradientStops

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impl<L> IntoVar<GradientStops> for &[(Hsla, L)]
where L: Into<Length> + Copy,

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fn into_var(self) -> <&[(Hsla, L)] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl<L, const N: usize> IntoVar<GradientStops> for &[(Hsla, L); N]
where L: Into<Length> + Copy,

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fn into_var(self) -> <&[(Hsla, L); N] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl<L> IntoVar<GradientStops> for &[(Hsva, L)]
where L: Into<Length> + Copy,

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fn into_var(self) -> <&[(Hsva, L)] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl<L, const N: usize> IntoVar<GradientStops> for &[(Hsva, L); N]
where L: Into<Length> + Copy,

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fn into_var(self) -> <&[(Hsva, L); N] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl<L> IntoVar<GradientStops> for &[(Rgba, L)]
where L: Into<Length> + Copy,

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fn into_var(self) -> <&[(Rgba, L)] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl<L, const N: usize> IntoVar<GradientStops> for &[(Rgba, L); N]
where L: Into<Length> + Copy,

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fn into_var(self) -> <&[(Rgba, L); N] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl IntoVar<GradientStops> for &[Hsla]

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fn into_var(self) -> <&[Hsla] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl<const N: usize> IntoVar<GradientStops> for &[Hsla; N]

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fn into_var(self) -> <&[Hsla; N] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl IntoVar<GradientStops> for &[Hsva]

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fn into_var(self) -> <&[Hsva] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl<const N: usize> IntoVar<GradientStops> for &[Hsva; N]

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fn into_var(self) -> <&[Hsva; N] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl IntoVar<GradientStops> for &[Rgba]

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fn into_var(self) -> <&[Rgba] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl<const N: usize> IntoVar<GradientStops> for &[Rgba; N]

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fn into_var(self) -> <&[Rgba; N] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl<L, const N: usize> IntoVar<GradientStops> for [(Hsla, L); N]
where L: Into<Length> + Copy,

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fn into_var(self) -> <[(Hsla, L); N] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl<L, const N: usize> IntoVar<GradientStops> for [(Hsva, L); N]
where L: Into<Length> + Copy,

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fn into_var(self) -> <[(Hsva, L); N] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl<L, const N: usize> IntoVar<GradientStops> for [(Rgba, L); N]
where L: Into<Length> + Copy,

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fn into_var(self) -> <[(Rgba, L); N] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl<const N: usize> IntoVar<GradientStops> for [Hsla; N]

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fn into_var(self) -> <[Hsla; N] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl<const N: usize> IntoVar<GradientStops> for [Hsva; N]

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fn into_var(self) -> <[Hsva; N] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl<const N: usize> IntoVar<GradientStops> for [Rgba; N]

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fn into_var(self) -> <[Rgba; N] as IntoVar<GradientStops>>::Var

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type Var = LocalVar<GradientStops>

Variable type that will wrap the T value. Read more
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl PartialEq for GradientStops

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fn eq(&self, other: &GradientStops) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for GradientStops

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fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl<L> IntoValue<GradientStops> for &[(Hsla, L)]
where L: Into<Length> + Copy,

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impl<L, const N: usize> IntoValue<GradientStops> for &[(Hsla, L); N]
where L: Into<Length> + Copy,

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impl<L> IntoValue<GradientStops> for &[(Hsva, L)]
where L: Into<Length> + Copy,

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impl<L, const N: usize> IntoValue<GradientStops> for &[(Hsva, L); N]
where L: Into<Length> + Copy,

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impl<L> IntoValue<GradientStops> for &[(Rgba, L)]
where L: Into<Length> + Copy,

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impl<L, const N: usize> IntoValue<GradientStops> for &[(Rgba, L); N]
where L: Into<Length> + Copy,

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impl IntoValue<GradientStops> for &[Hsla]

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impl<const N: usize> IntoValue<GradientStops> for &[Hsla; N]

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impl IntoValue<GradientStops> for &[Hsva]

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impl<const N: usize> IntoValue<GradientStops> for &[Hsva; N]

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impl IntoValue<GradientStops> for &[Rgba]

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impl<const N: usize> IntoValue<GradientStops> for &[Rgba; N]

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impl<L, const N: usize> IntoValue<GradientStops> for [(Hsla, L); N]
where L: Into<Length> + Copy,

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impl<L, const N: usize> IntoValue<GradientStops> for [(Hsva, L); N]
where L: Into<Length> + Copy,

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impl<L, const N: usize> IntoValue<GradientStops> for [(Rgba, L); N]
where L: Into<Length> + Copy,

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impl<const N: usize> IntoValue<GradientStops> for [Hsla; N]

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impl<const N: usize> IntoValue<GradientStops> for [Hsva; N]

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impl<const N: usize> IntoValue<GradientStops> for [Rgba; N]

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impl StructuralPartialEq for GradientStops

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