Skip to main content

DrawCommand

Enum DrawCommand 

Source
pub enum DrawCommand {
    FillRect {
        position: Vector2D,
        width: f64,
        height: f64,
        color: Color,
    },
    StrokeRect {
        position: Vector2D,
        width: f64,
        height: f64,
        color: Color,
        line_width: f64,
    },
    FillCircle {
        center: Vector2D,
        radius: f64,
        color: Color,
    },
    StrokeCircle {
        center: Vector2D,
        radius: f64,
        color: Color,
        line_width: f64,
    },
    Line {
        start: Vector2D,
        end: Vector2D,
        color: Color,
        line_width: f64,
    },
    FillText {
        text: String,
        position: Vector2D,
        color: Color,
        font: String,
    },
    DrawSprite {
        image: HtmlImageElement,
        source: Rect,
        transform: Transform2D,
    },
    DrawImageRect {
        image: HtmlImageElement,
        source: Rect,
        dest_position: Vector2D,
        dest_width: f64,
        dest_height: f64,
    },
    SetGlobalAlpha {
        alpha: f64,
    },
    SetBlendMode {
        mode: BlendMode,
    },
}
Expand description

A single deferred draw operation recorded into a DrawList.

Commands carry the resolved style for the operation (fill/stroke color, line width) so that replay can group consecutive same-style shapes into a single path and skip redundant canvas state changes. Colors are stored as Color and converted to CSS strings only at replay time.

Variants§

§

FillRect

Fills a rectangle. Carries the fill color.

Fields

§position: Vector2D

The top-left position in world space.

§width: f64

The width in pixels.

§height: f64

The height in pixels.

§color: Color

The fill color.

§

StrokeRect

Strokes the outline of a rectangle. Carries stroke color and line width.

Fields

§position: Vector2D

The top-left position in world space.

§width: f64

The width in pixels.

§height: f64

The height in pixels.

§color: Color

The stroke color.

§line_width: f64

The stroke line width in pixels.

§

FillCircle

Fills a circle. Carries the fill color.

Fields

§center: Vector2D

The center in world space.

§radius: f64

The radius in pixels.

§color: Color

The fill color.

§

StrokeCircle

Strokes the outline of a circle. Carries stroke color and line width.

Fields

§center: Vector2D

The center in world space.

§radius: f64

The radius in pixels.

§color: Color

The stroke color.

§line_width: f64

The stroke line width in pixels.

§

Line

Draws a line segment. Carries stroke color and line width.

Fields

§start: Vector2D

The start point in world space.

§end: Vector2D

The end point in world space.

§color: Color

The stroke color.

§line_width: f64

The stroke line width in pixels.

§

FillText

Fills text at a position. Carries the fill color and font.

Fields

§text: String

The text to draw.

§position: Vector2D

The position in world space.

§color: Color

The fill color.

§font: String

The CSS font string.

§

DrawSprite

Draws a transformed sprite sub-region (image, source rect, TRS transform).

Fields

§image: HtmlImageElement

The image to draw.

§source: Rect

The source rectangle within the image.

§transform: Transform2D

The world-space transform (position, rotation, scale). Scale signs flip.

§

DrawImageRect

Draws an image sub-region at a destination rect (no rotation).

Fields

§image: HtmlImageElement

The image to draw.

§source: Rect

The source rectangle within the image.

§dest_position: Vector2D

The destination top-left position in world space.

§dest_width: f64

The destination width in pixels.

§dest_height: f64

The destination height in pixels.

§

SetGlobalAlpha

Applies a global alpha to all subsequent commands until changed.

Fields

§alpha: f64

The alpha value in the range 0.0 to 1.0.

§

SetBlendMode

Applies a blend mode to all subsequent commands until changed.

Fields

§mode: BlendMode

The blend mode to apply.

Trait Implementations§

Source§

impl Clone for DrawCommand

Source§

fn clone(&self) -> DrawCommand

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
Source§

impl Debug for DrawCommand

Source§

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

Formats the value using the given formatter. Read more
Source§

impl PartialEq for DrawCommand

Source§

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
Source§

impl StructuralPartialEq for DrawCommand

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
Source§

impl<S, T> Upcast<T> for S
where T: UpcastFrom<S> + ?Sized, S: ?Sized,

Source§

fn upcast(&self) -> &T
where Self: ErasableGeneric, T: Sized + ErasableGeneric<Repr = Self::Repr>,

Perform a zero-cost type-safe upcast to a wider ref type within the Wasm bindgen generics type system. Read more
Source§

fn upcast_into(self) -> T
where Self: Sized + ErasableGeneric, T: Sized + ErasableGeneric<Repr = Self::Repr>,

Perform a zero-cost type-safe upcast to a wider type within the Wasm bindgen generics type system. Read more