Struct CanvasRenderingContext2D

#[repr(C)]
pub(crate) 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(crate) fn new_inherited( global: &GlobalScope, canvas: Option<&HTMLCanvasElement>, size: Size2D<u32>, ) -> CanvasRenderingContext2D

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

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

fn reset_to_initial_state(&self)

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

pub(crate) fn mark_as_dirty(&self)

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

pub(crate) fn get_canvas_id(&self) -> CanvasId

pub(crate) fn send_canvas_2d_msg(&self, msg: Canvas2dMsg)

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

pub(crate) fn origin_is_clean(&self) -> bool

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

Trait Implementations

impl CanvasRenderingContext2DMethods<DomTypeHolder> for CanvasRenderingContext2D

fn Reset(&self)

https://html.spec.whatwg.org/multipage/#dom-context-2d-reset

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, can_gc: CanGc) -> 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>, can_gc: CanGc, )

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

fn Font(&self) -> DOMString

fn SetFont(&self, value: DOMString, can_gc: CanGc)

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, can_gc: CanGc, )

fn FillStyle(&self) -> StringOrCanvasGradientOrCanvasPattern

fn SetFillStyle( &self, value: StringOrCanvasGradientOrCanvasPattern, can_gc: CanGc, )

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

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

fn GetImageData( &self, sx: i32, sy: i32, sw: i32, sh: i32, can_gc: CanGc, ) -> 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, can_gc: CanGc)

impl DomObject for CanvasRenderingContext2D

fn reflector(&self) -> &Reflector

Returns the receiver’s reflector.

fn global(&self) -> Root<Dom<GlobalScope>>

where Self: Sized,

Returns the GlobalScope of the realm that the DomObject was created in. If this object is a Node, this will be different from it’s owning Document if adopted by. For Nodes it’s almost always better to use NodeTraits::owning_global.

impl DomObjectWrap for CanvasRenderingContext2D

const WRAP: unsafe fn(_: SafeJSContext, _: &GlobalScope, _: Option<HandleObject<'_>>, _: Box<Self>, _: CanGc) -> Root<Dom<Self>> = {dom::bindings::codegen::Bindings::CanvasRenderingContext2DBinding::CanvasRenderingContext2D_Binding::Wrap as for<'a, 'b> unsafe fn(script_runtime::JSContext, &'a dom::globalscope::GlobalScope, std::option::Option<js::rust::Handle<'b, *mut js::jsapi::JSObject>>, std::boxed::Box<dom::canvasrenderingcontext2d::CanvasRenderingContext2D>, script_runtime::CanGc) -> dom::bindings::root::Root<dom::bindings::root::Dom<dom::canvasrenderingcontext2d::CanvasRenderingContext2D>>}

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

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

type Parent = Reflector

impl IDLInterface for CanvasRenderingContext2D

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

Returns whether the given DOM class derives that interface.

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 for CanvasRenderingContext2D

fn eq(&self, other: &Self) -> 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 ToJSValConvertible for CanvasRenderingContext2D

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

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

impl Traceable for CanvasRenderingContext2D

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

Trace self.

impl Eq for CanvasRenderingContext2D