Struct DisplayList 

pub struct DisplayList { /* private fields */ }

The ordered list of drawing instructions produced by the chart model.

The list is retained between frames: a chart that does not change does not rebuild it, and the GPU backends keep their buffers in sync with it rather than re-uploading every frame. This is the single biggest reason the chart crate is faster than a JavaScript implementation: an unchanged chart costs nothing to draw.

Implementations

impl DisplayList

Inherent implementation of DisplayList.

pub fn new() -> Self

Returns an empty display list.

pub fn items(&self) -> &[DisplayItem]

Returns the items, in paint order.

Returns

• &[DisplayItem] - A [DisplayItem] value.

pub fn len(&self) -> usize

Returns the number of items in the list.

Returns

• usize - A non-negative integer.

pub fn is_empty(&self) -> bool

Returns true when the list holds no items.

Returns

• bool - A boolean.

pub fn bounds(&self) -> BBox

Returns the bounds of everything in the list.

Returns

• BBox - A BBox value.

pub fn clear(&mut self)

Removes every item from the list, keeping the allocated capacity.

pub fn fill(&mut self, path: Path, paint: Fill, opacity: f64, z: i32)

Adds a filled path.

Arguments

• Path - A Path parameter.
• Fill - A Fill parameter.
• f64 - A 64-bit float (f64).
• i32 - A 32-bit signed integer (i32).

pub fn stroke( &mut self, path: Path, paint: Stroke, style: LineStyle, opacity: f64, z: i32, )

Adds a stroked path.

Arguments

• Path - A Path parameter.
• Stroke - A Stroke parameter.
• LineStyle - A LineStyle parameter.
• f64 - A 64-bit float (f64).
• i32 - A 32-bit signed integer (i32).

pub fn text(&mut self, text: String, x: f64, y: f64, style: TextStyle, z: i32)

Adds a text run.

Arguments

• String - A String parameter.
• f64 - A 64-bit float (f64).
• TextStyle - A TextStyle parameter.
• i32 - A 32-bit signed integer (i32).

pub fn image( &mut self, image: HtmlImageElement, x: f64, y: f64, width: f64, height: f64, z: i32, )

Adds an image.

Arguments

• HtmlImageElement - A HtmlImageElement parameter.
• f64 - A 64-bit float (f64).
• i32 - A 32-bit signed integer (i32).

pub fn clip(&mut self, path: Path, z: i32)

Adds a clip instruction.

Arguments

• Path - A Path parameter.
• i32 - A 32-bit signed integer (i32).

pub fn pop_clip(&mut self, z: i32)

Adds a clip-restore instruction.

Arguments

• i32 - A 32-bit signed integer (i32).

pub fn strip( &mut self, points: Vec<Point>, baseline: f32, paint: Fill, opacity: f64, z: i32, )

Adds a filled triangle strip.

Arguments

• Vec<Point> - A Vec<Point> parameter.
• f32 - A 32-bit float (f32).
• Fill - A Fill parameter.
• f64 - A 64-bit float (f64).
• i32 - A 32-bit signed integer (i32).

pub fn mark( &mut self, index: usize, element_id: u32, series_index: usize, data_index: usize, )

Marks the item at the given index as belonging to a series and a data point.

Arguments

• usize - A non-negative integer (usize).
• u32 - A 32-bit unsigned integer (u32).

Trait Implementations

impl Clone for DisplayList

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DisplayList

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

Formats the value using the given formatter.

impl Default for DisplayList

fn default() -> Self

Returns the “default value” for a type.