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 id(self, id: impl Into<ElementId>) -> Self

Enable an interactive hover tooltip for this chart: the hovered slice lifts out of the ring and the tooltip shows its value and share.

The id must be unique among sibling elements. Without it, the chart stays a non-interactive plot.

pub fn name(self, name: impl Into<SharedString>) -> Self

Set the series name shown in the hover tooltip row (e.g. “Desktop”).

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.

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

Set the label text for each slice.

Once set, a “leader line + text” is drawn outside the ring for every slice.

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

Set the leader line color per slice (defaults to cx.theme().border).

pub fn label_color(self, color: Hsla) -> Self

Set the label text color (defaults to cx.theme().foreground).

pub fn label_gap(self, gap: f32) -> Self

Set the extra gap between outer_radius and the label radius (defaults to 15px).

Trait Implementations

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

type RequestLayoutState = ()

The type of state returned from Element::request_layout. A mutable reference to this state is subsequently provided to Element::prepaint and Element::paint.

type PrepaintState = (Option<Hitbox>, Vec<AnyElement>, Option<AnyElement>)

The type of state returned from Element::prepaint. A mutable reference to this state is subsequently provided to Element::paint.

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

If this element has a unique identifier, return it here. This is used to track elements across frames, and will cause a GlobalElementId to be passed to the request_layout, prepaint, and paint methods.

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

Source location where this element was constructed, used to disambiguate elements in the inspector and navigate to their source code.

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

Before an element can be painted, we need to know where it’s going to be and how big it is. Use this method to request a layout from Taffy and initialize the element’s state.

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

After laying out an element, we need to commit its bounds to the current frame for hitbox purposes. The state argument is the same state that was returned from Element::request_layout().

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

Once layout has been completed, this method will be called to paint the element to the screen. The state argument is the same state that was returned from Element::request_layout().

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

Returns the accessible role for this element, if any. Elements that return None are not included in the accessibility tree.

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

Write accessibility properties to the given node. Called only when a11y_role() returns Some.

fn a11y_synthetic_children( &mut self, _prepaint: &mut Self::PrepaintState, _builder: &mut A11ySubtreeBuilder<'_>, )

Add synthetic child nodes to an Element that has an .id() and a .role().

fn into_any(self) -> AnyElement

Convert this element into a dynamically-typed AnyElement.

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

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)

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

A stable element id that enables interactive tooltip support for this plot.

fn tooltip_state( &self, position: Point<Pixels>, bounds: Bounds<Pixels>, _cx: &App, ) -> Option<TooltipState>

Map the cursor to the tooltip state to display.

fn hover( &mut self, hover: Option<&PlotHover>, window: &mut Window, cx: &mut App, )

Receive the datum in focus this frame, before Plot::tooltip and Plot::paint run.

fn tooltip( &self, state: &TooltipState, cursor: Point<Pixels>, bounds: Bounds<Pixels>, _window: &mut Window, cx: &mut App, ) -> Option<AnyElement>

Render the tooltip overlay for the active TooltipState.

fn prepaint( &mut self, _bounds: Bounds<Pixels>, _window: &mut Window, _cx: &mut App, ) -> Vec<AnyElement>

Lay out and place the child elements this plot hosts (e.g. element labels).