Struct CanvasRenderingContext2D

#[repr(C)]
pub(crate) struct CanvasRenderingContext2D {
    reflector_: Reflector,
    canvas: HTMLCanvasElementOrOffscreenCanvas<DomTypeHolder>,
    canvas_state: CanvasState,
    droppable: DroppableCanvasRenderingContext2D,
}

Fields

reflector_: Reflector

canvas: HTMLCanvasElementOrOffscreenCanvas<DomTypeHolder>

canvas_state: CanvasState

droppable: DroppableCanvasRenderingContext2D

Implementations

impl CanvasRenderingContext2D

fn __assert_parent_type(&self)

impl CanvasRenderingContext2D

pub(crate) fn new_inherited( global: &GlobalScope, canvas: HTMLCanvasElementOrOffscreenCanvas<DomTypeHolder>, size: Size2D<u32>, ) -> CanvasRenderingContext2D

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

fn reset_to_initial_state(&self)

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

https://html.spec.whatwg.org/multipage/#concept-canvas-set-bitmap-dimensions

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)

Trait Implementations

impl CanvasContext for CanvasRenderingContext2D

type ID = CanvasId

fn context_id(&self) -> Self::ID

fn canvas(&self) -> Option<HTMLCanvasElementOrOffscreenCanvas<DomTypeHolder>>

fn update_rendering(&self)

fn resize(&self)

fn reset_bitmap(&self)

fn get_image_data(&self) -> Option<Snapshot>

Returns none if area of canvas is zero.

fn origin_is_clean(&self) -> bool

fn mark_as_dirty(&self)

fn size(&self) -> Size2D<u32>

fn onscreen(&self) -> bool

impl CanvasRenderingContext2DMethods<DomTypeHolder> for CanvasRenderingContext2D

fn Reset(&self)

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

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

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

fn SetTransform_(&self, transform: &DOMMatrix2DInit) -> ErrorResult

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

fn SetLineDash(&self, segments: Vec<f64>)

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

fn GetLineDash(&self) -> Vec<f64>

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

fn LineDashOffset(&self) -> f64

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

fn SetLineDashOffset(&self, offset: f64)

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

fn Canvas(&self) -> DomRoot<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) -> DomRoot<DOMMatrix>

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 Fill_(&self, path: &Path2D, fill_rule: CanvasFillRule)

fn Stroke(&self)

fn Stroke_(&self, path: &Path2D)

fn Clip(&self, fill_rule: CanvasFillRule)

fn Clip_(&self, path: &Path2D, fill_rule: CanvasFillRule)

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

fn IsPointInPath_( &self, path: &Path2D, 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) -> DomRoot<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<DomTypeHolder>, dx: f64, dy: f64, ) -> ErrorResult

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

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

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, ) -> ErrorResult

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

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

fn ImageSmoothingEnabled(&self) -> bool

fn SetImageSmoothingEnabled(&self, value: bool)

fn StrokeStyle(&self) -> StringOrCanvasGradientOrCanvasPattern<DomTypeHolder>

fn SetStrokeStyle( &self, value: StringOrCanvasGradientOrCanvasPattern<DomTypeHolder>, can_gc: CanGc, )

fn FillStyle(&self) -> StringOrCanvasGradientOrCanvasPattern<DomTypeHolder>

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

fn CreateImageData( &self, sw: i32, sh: i32, can_gc: CanGc, ) -> Fallible<DomRoot<ImageData>>

fn CreateImageData_( &self, imagedata: &ImageData, can_gc: CanGc, ) -> Fallible<DomRoot<ImageData>>

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

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>, can_gc: CanGc, ) -> DomRoot<CanvasGradient>

fn CreateRadialGradient( &self, x0: Finite<f64>, y0: Finite<f64>, r0: Finite<f64>, x1: Finite<f64>, y1: Finite<f64>, r1: Finite<f64>, can_gc: CanGc, ) -> Fallible<DomRoot<CanvasGradient>>

fn CreatePattern( &self, image: CanvasImageSource<DomTypeHolder>, repetition: DOMString, can_gc: CanGc, ) -> Fallible<Option<DomRoot<CanvasPattern>>>

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.

impl DomObjectWrap<DomTypeHolder> for CanvasRenderingContext2D

const WRAP: unsafe fn(_: SafeJSContext, _: &GlobalScope, _: Option<HandleObject<'_>>, _: Box<Self>, _: CanGc) -> Root<Dom<Self>> = {script_bindings::codegen::GenericBindings::CanvasRenderingContext2DBinding::Wrap::<dom::bindings::codegen::DomTypeHolder::DomTypeHolder> as for<'a, 'b> unsafe fn(script_bindings::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_bindings::script_runtime::CanGc) -> script_bindings::root::Root<script_bindings::root::Dom<dom::canvasrenderingcontext2d::CanvasRenderingContext2D>>}

Function pointer to the general wrap function 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