Struct CanvasRenderingContext2DSettings 

pub struct CanvasRenderingContext2DSettings {
    pub alpha: bool,
    pub colorSpace: PredefinedColorSpace,
    pub colorType: CanvasColorType,
    pub desynchronized: bool,
    pub willReadFrequently: bool,
}

Fields

alpha: bool

colorSpace: PredefinedColorSpace

colorType: CanvasColorType

desynchronized: bool

willReadFrequently: bool

Implementations

impl CanvasRenderingContext2DSettings

pub fn empty() -> Self

pub fn new( cx: &mut JSContext, val: HandleValue<'_>, ) -> Result<ConversionResult<CanvasRenderingContext2DSettings>, ()>

impl CanvasRenderingContext2DSettings

pub fn to_jsobject(&self, cx: &mut JSContext, obj: MutableHandleObject<'_>)

Trait Implementations

impl Default for CanvasRenderingContext2DSettings

fn default() -> Self

Returns the “default value” for a type.

impl FromJSValConvertible for CanvasRenderingContext2DSettings

type Config = ()

Optional configurable behaviour switch; use () for no configuration.

fn from_jsval( cx: &mut JSContext, value: HandleValue<'_>, _option: (), ) -> Result<ConversionResult<CanvasRenderingContext2DSettings>, ()>

Convert val to type Self. Optional configuration of type T can be passed as the option argument. If it returns Err(()), a JSAPI exception is pending. If it returns Ok(Failure(reason)), there is no pending JSAPI exception.

impl ToJSValConvertible for CanvasRenderingContext2DSettings

fn to_jsval(&self, cx: &mut JSContext, rval: MutableHandleValue<'_>)

Convert self to a JSVal. JSAPI failure causes a panic.

impl Traceable for CanvasRenderingContext2DSettings

unsafe fn trace(&self, tracer: *mut JSTracer)

Trace self.