Struct PieChart 

pub struct PieChart<T: 'static> { /* private fields */ }

Implementations

impl<T> PieChart<T>

pub fn new<I>(data: I) -> Self

where I: IntoIterator<Item = T>,

pub fn inner_radius(self, inner_radius: f32) -> Self

Set the inner radius of the pie chart.

pub fn inner_radius_fn( self, inner_radius_fn: impl Fn(&ArcData<'_, T>) -> f32 + 'static, ) -> Self

Set the inner radius of the pie chart based on the arc data.

pub fn outer_radius(self, outer_radius: f32) -> Self

Set the outer radius of the pie chart.

pub fn outer_radius_fn( self, outer_radius_fn: impl Fn(&ArcData<'_, T>) -> f32 + 'static, ) -> Self

Set the outer radius of the pie chart based on the arc data.

pub fn pad_angle(self, pad_angle: f32) -> Self

Set the pad angle of the pie chart.

pub fn value(self, value: impl Fn(&T) -> f32 + 'static) -> Self

pub fn color<H>(self, color: impl Fn(&T) -> H + 'static) -> Self

where H: Into<Hsla> + 'static,

Set the color of the pie chart.

Trait Implementations

impl<T: 'static> Element for PieChart<T>

实现 Element trait，提供图表的布局和渲染逻辑

fn id(&self) -> Option<ElementId>

返回元素 ID（图表元素不需要）

fn source_location(&self) -> Option<&'static Location<'static>>

返回源代码位置信息（图表元素不需要）

fn request_layout( &mut self, _: Option<&GlobalElementId>, _: Option<&InspectorElementId>, window: &mut Window, cx: &mut App, ) -> (LayoutId, Self::RequestLayoutState)

请求布局，使用全尺寸样式

fn prepaint( &mut self, _: Option<&GlobalElementId>, _: Option<&InspectorElementId>, _: Bounds<Pixels>, _: &mut Self::RequestLayoutState, _: &mut Window, _: &mut App, ) -> Self::PrepaintState

预绘制阶段（图表不需要额外处理）

fn paint( &mut self, _: Option<&GlobalElementId>, _: Option<&InspectorElementId>, bounds: Bounds<Pixels>, _: &mut Self::RequestLayoutState, _: &mut Self::PrepaintState, window: &mut Window, cx: &mut App, )

绘制阶段，委托给 Plot::paint 进行实际渲染

type RequestLayoutState = ()

Element::request_layout 返回的状态类型。 此状态的可变引用会在后续的 Element::prepaint 和 Element::paint 中传递。

type PrepaintState = ()

Element::prepaint 返回的状态类型。 此状态的可变引用会在后续的 Element::paint 中传递。

fn a11y_role(&self) -> Option<Role>

Returns the accessible role for this element, if any.

fn write_a11y_info(&self, _node: &mut Node)

Write accessibility properties to the given node.

fn into_any(self) -> AnyElement

Convert this element into a dynamically-typed AnyElement.

impl<T: 'static> IntoElement for PieChart<T>

实现 IntoElement trait，使图表类型可直接作为元素使用

type Element = PieChart<T>

The specific type of element into which the implementing type is converted. Useful for converting other types into elements automatically, like Strings

fn into_element(self) -> Self::Element

Convert self into a type that implements Element.

fn into_any_element(self) -> AnyElement

Convert self into a dynamically-typed AnyElement.

impl<T> Plot for PieChart<T>

fn paint(&mut self, bounds: Bounds<Pixels>, window: &mut Window, cx: &mut App)