Struct script::dom::canvasrenderingcontext2d::CanvasRenderingContext2D

#[repr(C)]pub struct CanvasRenderingContext2D {
    reflector_: Reflector,
    canvas: Option<Dom<HTMLCanvasElement>>,
    canvas_state: CanvasState,
}

Fields

reflector_: Reflector

canvas: Option<Dom<HTMLCanvasElement>>

For rendering contexts created by an HTML canvas element, this is Some, for ones created by a paint worklet, this is None.

canvas_state: CanvasState

Implementations

impl CanvasRenderingContext2D

fn __assert_parent_type(&self)

impl CanvasRenderingContext2D

pub fn new_inherited(
    global: &GlobalScope,
    canvas: Option<&HTMLCanvasElement>,
    size: Size2D<u32>
) -> CanvasRenderingContext2D

pub fn new(
    global: &GlobalScope,
    canvas: &HTMLCanvasElement,
    size: Size2D<u32>
) -> Root<Dom<CanvasRenderingContext2D>>

pub fn set_bitmap_dimensions(&self, size: Size2D<u32>)

fn reset_to_initial_state(&self)

pub fn set_canvas_bitmap_dimensions(&self, size: Size2D<u64>)

pub fn mark_as_dirty(&self)

pub fn take_missing_image_urls(&self) -> Vec<ServoUrl>

pub fn get_canvas_id(&self) -> CanvasId

pub fn send_canvas_2d_msg(&self, msg: Canvas2dMsg)

pub fn get_ipc_renderer(&self) -> IpcSender<CanvasMsg>

pub fn origin_is_clean(&self) -> bool

pub fn get_rect(&self, rect: Rect<u32>) -> Vec<u8>

Trait Implementations

impl CanvasRenderingContext2DMethods for CanvasRenderingContext2D

fn Canvas(&self) -> Root<Dom<HTMLCanvasElement>>

fn Save(&self)

fn Restore(&self)

fn Scale(&self, x: f64, y: f64)

fn Rotate(&self, angle: f64)

fn Translate(&self, x: f64, y: f64)

fn Transform(&self, a: f64, b: f64, c: f64, d: f64, e: f64, f: f64)

fn GetTransform(&self) -> Root<Dom<DOMMatrix>>

fn SetTransform(&self, a: f64, b: f64, c: f64, d: f64, e: f64, f: f64)

fn ResetTransform(&self)

fn GlobalAlpha(&self) -> f64

fn SetGlobalAlpha(&self, alpha: f64)

fn GlobalCompositeOperation(&self) -> DOMString

fn SetGlobalCompositeOperation(&self, op_str: DOMString)

fn FillRect(&self, x: f64, y: f64, width: f64, height: f64)

fn ClearRect(&self, x: f64, y: f64, width: f64, height: f64)

fn StrokeRect(&self, x: f64, y: f64, width: f64, height: f64)

fn BeginPath(&self)

fn ClosePath(&self)

fn Fill(&self, fill_rule: CanvasFillRule)

fn Stroke(&self)

fn Clip(&self, fill_rule: CanvasFillRule)

fn IsPointInPath(&self, x: f64, y: f64, fill_rule: CanvasFillRule) -> bool

fn FillText(&self, text: DOMString, x: f64, y: f64, max_width: Option<f64>)

fn MeasureText(&self, text: DOMString) -> Root<Dom<TextMetrics>>

fn Font(&self) -> DOMString

fn SetFont(&self, value: DOMString)

fn TextAlign(&self) -> CanvasTextAlign

fn SetTextAlign(&self, value: CanvasTextAlign)

fn TextBaseline(&self) -> CanvasTextBaseline

fn SetTextBaseline(&self, value: CanvasTextBaseline)

fn Direction(&self) -> CanvasDirection

fn SetDirection(&self, value: CanvasDirection)

fn DrawImage(
    &self,
    image: CanvasImageSource,
    dx: f64,
    dy: f64
) -> Result<(), Error>

fn DrawImage_(
    &self,
    image: CanvasImageSource,
    dx: f64,
    dy: f64,
    dw: f64,
    dh: f64
) -> Result<(), Error>

fn DrawImage__(
    &self,
    image: CanvasImageSource,
    sx: f64,
    sy: f64,
    sw: f64,
    sh: f64,
    dx: f64,
    dy: f64,
    dw: f64,
    dh: f64
) -> Result<(), Error>

fn MoveTo(&self, x: f64, y: f64)

fn LineTo(&self, x: f64, y: f64)

fn Rect(&self, x: f64, y: f64, width: f64, height: f64)

fn QuadraticCurveTo(&self, cpx: f64, cpy: f64, x: f64, y: f64)

fn BezierCurveTo(
    &self,
    cp1x: f64,
    cp1y: f64,
    cp2x: f64,
    cp2y: f64,
    x: f64,
    y: f64
)

fn Arc(
    &self,
    x: f64,
    y: f64,
    r: f64,
    start: f64,
    end: f64,
    ccw: bool
) -> Result<(), Error>

fn ArcTo(
    &self,
    cp1x: f64,
    cp1y: f64,
    cp2x: f64,
    cp2y: f64,
    r: f64
) -> Result<(), Error>

fn Ellipse(
    &self,
    x: f64,
    y: f64,
    rx: f64,
    ry: f64,
    rotation: f64,
    start: f64,
    end: f64,
    ccw: bool
) -> Result<(), Error>

fn ImageSmoothingEnabled(&self) -> bool

fn SetImageSmoothingEnabled(&self, value: bool)

fn StrokeStyle(&self) -> StringOrCanvasGradientOrCanvasPattern

fn SetStrokeStyle(&self, value: StringOrCanvasGradientOrCanvasPattern)

fn FillStyle(&self) -> StringOrCanvasGradientOrCanvasPattern

fn SetFillStyle(&self, value: StringOrCanvasGradientOrCanvasPattern)

fn CreateImageData(
    &self,
    sw: i32,
    sh: i32
) -> Result<Root<Dom<ImageData>>, Error>

fn CreateImageData_(
    &self,
    imagedata: &ImageData
) -> Result<Root<Dom<ImageData>>, Error>

fn GetImageData(
    &self,
    sx: i32,
    sy: i32,
    sw: i32,
    sh: i32
) -> Result<Root<Dom<ImageData>>, Error>

fn PutImageData(&self, imagedata: &ImageData, dx: i32, dy: i32)

fn PutImageData_(
    &self,
    imagedata: &ImageData,
    dx: i32,
    dy: i32,
    dirty_x: i32,
    dirty_y: i32,
    dirty_width: i32,
    dirty_height: i32
)

fn CreateLinearGradient(
    &self,
    x0: Finite<f64>,
    y0: Finite<f64>,
    x1: Finite<f64>,
    y1: Finite<f64>
) -> Root<Dom<CanvasGradient>>

fn CreateRadialGradient(
    &self,
    x0: Finite<f64>,
    y0: Finite<f64>,
    r0: Finite<f64>,
    x1: Finite<f64>,
    y1: Finite<f64>,
    r1: Finite<f64>
) -> Result<Root<Dom<CanvasGradient>>, Error>

fn CreatePattern(
    &self,
    image: CanvasImageSource,
    repetition: DOMString
) -> Result<Option<Root<Dom<CanvasPattern>>>, Error>

fn LineWidth(&self) -> f64

fn SetLineWidth(&self, width: f64)

fn LineCap(&self) -> CanvasLineCap

fn SetLineCap(&self, cap: CanvasLineCap)

fn LineJoin(&self) -> CanvasLineJoin

fn SetLineJoin(&self, join: CanvasLineJoin)

fn MiterLimit(&self) -> f64

fn SetMiterLimit(&self, limit: f64)

fn ShadowOffsetX(&self) -> f64

fn SetShadowOffsetX(&self, value: f64)

fn ShadowOffsetY(&self) -> f64

fn SetShadowOffsetY(&self, value: f64)

fn ShadowBlur(&self) -> f64

fn SetShadowBlur(&self, value: f64)

fn ShadowColor(&self) -> DOMString

fn SetShadowColor(&self, value: DOMString)

impl DomObject for CanvasRenderingContext2D

fn reflector(&self) -> &Reflector

Returns the receiver's reflector.

fn global(&self) -> Root<Dom<GlobalScope>> where
    Self: Sized, 

Returns the global scope of the realm that the DomObject was created in.

impl DomObjectWrap for CanvasRenderingContext2D

const WRAP: unsafe fn(_: SafeJSContext, _: &GlobalScope, _: Box<Self>) -> Root<Dom<Self>>

Function pointer to the general wrap function type

impl Drop for CanvasRenderingContext2D

fn drop(&mut self)

Executes the destructor for this type.

impl HasParent for CanvasRenderingContext2D

type Parent = Reflector

fn as_parent(&self) -> &Reflector

This is used in a type assertion to ensure that the source and webidls agree as to what the parent type is

impl IDLInterface for CanvasRenderingContext2D

fn derives(class: &'static DOMClass) -> bool

Returns whether the given DOM class derives that interface.

impl JSTraceable for CanvasRenderingContext2D

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

Trace self.

impl MallocSizeOf for CanvasRenderingContext2D

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl MutDomObject for CanvasRenderingContext2D

unsafe fn init_reflector(&self, obj: *mut JSObject)

Initializes the Reflector

impl PartialEq<CanvasRenderingContext2D> for CanvasRenderingContext2D

fn eq(&self, other: &CanvasRenderingContext2D) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl ToJSValConvertible for CanvasRenderingContext2D

unsafe fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue)

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