Enum Canvas2DCommand 

pub enum Canvas2DCommand {
    Clear {
        color: Color,
    },
    FillRect {
        x: f32,
        y: f32,
        width: f32,
        height: f32,
        color: Color,
    },
    StrokeRect {
        x: f32,
        y: f32,
        width: f32,
        height: f32,
        color: Color,
        line_width: f32,
    },
    FillCircle {
        x: f32,
        y: f32,
        radius: f32,
        color: Color,
    },
    StrokeCircle {
        x: f32,
        y: f32,
        radius: f32,
        color: Color,
        line_width: f32,
    },
    Line {
        x1: f32,
        y1: f32,
        x2: f32,
        y2: f32,
        color: Color,
        line_width: f32,
    },
    FillText {
        text: String,
        x: f32,
        y: f32,
        font: String,
        color: Color,
        align: TextAlign,
        baseline: TextBaseline,
    },
    DrawImage {
        texture_id: u32,
        x: f32,
        y: f32,
        width: f32,
        height: f32,
    },
    DrawImageSlice {
        texture_id: u32,
        src_x: f32,
        src_y: f32,
        src_width: f32,
        src_height: f32,
        dst_x: f32,
        dst_y: f32,
        dst_width: f32,
        dst_height: f32,
    },
    Save,
    Restore,
    Translate {
        x: f32,
        y: f32,
    },
    Rotate {
        angle: f32,
    },
    Scale {
        x: f32,
        y: f32,
    },
    SetAlpha {
        alpha: f32,
    },
}

Canvas2D render commands that are serialized to JSON.

These commands are designed to be minimal and directly map to Canvas2D API calls. The JavaScript renderer simply iterates over commands and executes them.

Variants

Clear

Clear the entire canvas with a color.

Fields

color: Color

Fill color for clearing

FillRect

Fill a rectangle.

Fields

x: f32

X position

y: f32

Y position

width: f32

Width

height: f32

Height

color: Color

Fill color

StrokeRect

Stroke a rectangle outline.

Fields

x: f32

X position

y: f32

Y position

width: f32

Width

height: f32

Height

color: Color

Stroke color

line_width: f32

Line width

FillCircle

Fill a circle.

Fields

x: f32

Center X

y: f32

Center Y

radius: f32

Radius

color: Color

Fill color

StrokeCircle

Stroke a circle outline.

Fields

x: f32

Center X

y: f32

Center Y

radius: f32

Radius

color: Color

Stroke color

line_width: f32

Line width

Line

Draw a line.

Fields

x1: f32

Start X

y1: f32

Start Y

x2: f32

End X

y2: f32

End Y

color: Color

Line color

line_width: f32

Line width

FillText

Draw text.

Fields

text: String

Text content

x: f32

X position

y: f32

Y position

font: String

CSS font string (e.g., “48px monospace”)

color: Color

Text color

align: TextAlign

Text alignment

baseline: TextBaseline

Text baseline

DrawImage

Draw an image/sprite from a loaded texture.

Fields

texture_id: u32

Texture ID (index into loaded textures array)

x: f32

Destination X

y: f32

Destination Y

width: f32

Destination width

height: f32

Destination height

DrawImageSlice

Draw a portion of an image (sprite sheet).

Fields

texture_id: u32

Texture ID

src_x: f32

Source X in texture

src_y: f32

Source Y in texture

src_width: f32

Source width

src_height: f32

Source height

dst_x: f32

Destination X

dst_y: f32

Destination Y

dst_width: f32

Destination width

dst_height: f32

Destination height

Save

Save the current canvas state.

Restore

Restore the previously saved canvas state.

Translate

Translate the canvas origin.

Fields

x: f32

X translation

y: f32

Y translation

Rotate

Rotate the canvas.

Fields

angle: f32

Rotation angle in radians

Scale

Scale the canvas.

Fields

x: f32

X scale factor

y: f32

Y scale factor

SetAlpha

Set global alpha (opacity).

Fields

alpha: f32

Alpha value (0.0 to 1.0)

Trait Implementations

impl Clone for Canvas2DCommand

fn clone(&self) -> Canvas2DCommand

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Canvas2DCommand

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Canvas2DCommand

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Canvas2DCommand

fn eq(&self, other: &Canvas2DCommand) -> bool

Tests for self and other values to be equal, and is used by ==.

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

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

impl Serialize for Canvas2DCommand

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Canvas2DCommand