#[repr(transparent)]
pub struct CanvasRenderingContext2d { /* private fields */ }
Expand description

The CanvasRenderingContext2d class.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Implementations§

Getter for the canvas field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlCanvasElement

Getter for the globalAlpha field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the globalAlpha field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Getter for the globalCompositeOperation field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the globalCompositeOperation field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Getter for the strokeStyle field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the strokeStyle field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Getter for the fillStyle field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the fillStyle field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Getter for the filter field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the filter field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Getter for the imageSmoothingEnabled field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the imageSmoothingEnabled field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Getter for the lineWidth field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the lineWidth field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Getter for the lineCap field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the lineCap field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Getter for the lineJoin field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the lineJoin field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Getter for the miterLimit field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the miterLimit field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Getter for the lineDashOffset field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the lineDashOffset field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Getter for the shadowOffsetX field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the shadowOffsetX field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Getter for the shadowOffsetY field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the shadowOffsetY field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Getter for the shadowBlur field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the shadowBlur field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Getter for the shadowColor field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the shadowColor field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Getter for the font field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the font field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Getter for the textAlign field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the textAlign field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Getter for the textBaseline field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

Setter for the textBaseline field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The drawWindow() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, Window

The drawWindow() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, Window

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlImageElement

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, SvgImageElement

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlCanvasElement

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlVideoElement

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, ImageBitmap

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlImageElement

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, SvgImageElement

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlCanvasElement

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlVideoElement

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, ImageBitmap

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlImageElement

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, SvgImageElement

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlCanvasElement

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlVideoElement

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, ImageBitmap

The beginPath() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The clip() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The clip() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, CanvasWindingRule

The clip() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, Path2d

The clip() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, CanvasWindingRule, Path2d

The fill() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The fill() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, CanvasWindingRule

The fill() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, Path2d

The fill() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, CanvasWindingRule, Path2d

The isPointInPath() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The isPointInPath() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, CanvasWindingRule

The isPointInPath() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, Path2d

The isPointInPath() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, CanvasWindingRule, Path2d

The isPointInStroke() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The isPointInStroke() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, Path2d

The stroke() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The stroke() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, Path2d

The createLinearGradient() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasGradient, CanvasRenderingContext2d

The createPattern() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasPattern, CanvasRenderingContext2d, HtmlImageElement

The createPattern() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasPattern, CanvasRenderingContext2d, SvgImageElement

The createPattern() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasPattern, CanvasRenderingContext2d, HtmlCanvasElement

The createPattern() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasPattern, CanvasRenderingContext2d, HtmlVideoElement

The createPattern() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasPattern, CanvasRenderingContext2d, ImageBitmap

The createRadialGradient() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasGradient, CanvasRenderingContext2d

The addHitRegion() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The addHitRegion() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, HitRegionOptions

The clearHitRegions() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The removeHitRegion() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The createImageData() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, ImageData

The createImageData() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, ImageData

The getImageData() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, ImageData

The putImageData() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, ImageData

The putImageData() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, ImageData

The getLineDash() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The setLineDash() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The arc() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The arc() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The arcTo() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The bezierCurveTo() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The closePath() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The ellipse() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The ellipse() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The lineTo() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The moveTo() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The quadraticCurveTo() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The rect() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The clearRect() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The fillRect() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The strokeRect() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The restore() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The save() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The fillText() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The fillText() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The measureText() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, TextMetrics

The strokeText() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The strokeText() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The getTransform() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, DomMatrix

The resetTransform() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The rotate() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The scale() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The setTransform() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The transform() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The translate() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d

The drawCustomFocusRing() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, Element

The drawFocusIfNeeded() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasRenderingContext2d, Element

The CanvasRenderingContext2D.DRAWWINDOW_DRAW_CARET const.

This API requires the following crate features to be activated: CanvasRenderingContext2d

The CanvasRenderingContext2D.DRAWWINDOW_DO_NOT_FLUSH const.

This API requires the following crate features to be activated: CanvasRenderingContext2d

The CanvasRenderingContext2D.DRAWWINDOW_DRAW_VIEW const.

This API requires the following crate features to be activated: CanvasRenderingContext2d

The CanvasRenderingContext2D.DRAWWINDOW_USE_WIDGET_LAYERS const.

This API requires the following crate features to be activated: CanvasRenderingContext2d

The CanvasRenderingContext2D.DRAWWINDOW_ASYNC_DECODE_IMAGES const.

This API requires the following crate features to be activated: CanvasRenderingContext2d

Methods from Deref<Target = Object>§

The constructor property returns a reference to the Object constructor function that created the instance object.

MDN documentation

The hasOwnProperty() method returns a boolean indicating whether the object has the specified property as its own property (as opposed to inheriting it).

MDN documentation

The isPrototypeOf() method checks if an object exists in another object’s prototype chain.

MDN documentation

The propertyIsEnumerable() method returns a Boolean indicating whether the specified property is enumerable.

MDN documentation

The toLocaleString() method returns a string representing the object. This method is meant to be overridden by derived objects for locale-specific purposes.

MDN documentation

The toString() method returns a string representing the object.

MDN documentation

The valueOf() method returns the primitive value of the specified object.

MDN documentation

Methods from Deref<Target = JsValue>§

Returns the f64 value of this JS value if it’s an instance of a number.

If this JS value is not an instance of a number then this returns None.

Tests whether this JS value is a JS string.

If this JS value is a string value, this function copies the JS string value into wasm linear memory, encoded as UTF-8, and returns it as a Rust String.

To avoid the copying and re-encoding, consider the JsString::try_from() function from js-sys instead.

If this JS value is not an instance of a string or if it’s not valid utf-8 then this returns None.

UTF-16 vs UTF-8

JavaScript strings in general are encoded as UTF-16, but Rust strings are encoded as UTF-8. This can cause the Rust string to look a bit different than the JS string sometimes. For more details see the documentation about the str type which contains a few caveats about the encodings.

Returns the bool value of this JS value if it’s an instance of a boolean.

If this JS value is not an instance of a boolean then this returns None.

Tests whether this JS value is null

Tests whether this JS value is undefined

Tests whether the type of this JS value is symbol

Tests whether typeof self == "object" && self !== null.

Tests whether this JS value is an instance of Array.

Tests whether the type of this JS value is function.

Tests whether the type of this JS value is bigint.

Applies the unary typeof JS operator on a JsValue.

MDN documentation

Applies the binary in JS operator on the two JsValues.

MDN documentation

Tests whether the value is “truthy”.

Tests whether the value is “falsy”.

Compare two JsValues for equality, using the == operator in JS.

MDN documentation

Applies the unary ~ JS operator on a JsValue.

MDN documentation

Applies the binary >>> JS operator on the two JsValues.

MDN documentation

Applies the binary / JS operator on two JsValues, catching and returning any RangeError thrown.

MDN documentation

Applies the binary ** JS operator on the two JsValues.

MDN documentation

Applies the binary < JS operator on the two JsValues.

MDN documentation

Applies the binary <= JS operator on the two JsValues.

MDN documentation

Applies the binary >= JS operator on the two JsValues.

MDN documentation

Applies the binary > JS operator on the two JsValues.

MDN documentation

Applies the unary + JS operator on a JsValue. Can throw.

MDN documentation

Trait Implementations§

Converts this type into a shared reference of the (usually inferred) input type.
Converts this type into a shared reference of the (usually inferred) input type.
Converts this type into a shared reference of the (usually inferred) input type.
Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
The resulting type after dereferencing.
Dereferences the value.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
The wasm ABI type that this converts from when coming back out from the ABI boundary. Read more
Recover a Self from Self::Abi. Read more
The wasm ABI type that this converts into when crossing the ABI boundary. Read more
Convert self into Self::Abi so that it can be sent across the wasm ABI boundary. Read more
The wasm ABI type that this converts into when crossing the ABI boundary. Read more
Convert self into Self::Abi so that it can be sent across the wasm ABI boundary. Read more
Performs a dynamic instanceof check to see whether the JsValue provided is an instance of this type. Read more
Performs a zero-cost unchecked conversion from a JsValue into an instance of Self Read more
Performs a zero-cost unchecked conversion from a &JsValue into an instance of &Self. Read more
Test whether this JS value has a type T. Read more
Performs a dynamic cast (checked at runtime) of this value into the target type T. Read more
Performs a dynamic cast (checked at runtime) of this value into the target type T. Read more
Performs a zero-cost unchecked cast into the specified type. Read more
Performs a zero-cost unchecked cast into a reference to the specified type. Read more
Test whether this JS value is an instance of the type T. Read more
Performs a dynamic check to see whether the JsValue provided is a value of this type. Read more
Tests whether the argument is a “none” instance. If so it will be deserialized as None, and otherwise it will be passed to FromWasmAbi. Read more
Returns an ABI instance indicating “none”, which JS will interpret as the None branch of this option. Read more
Returns an ABI instance indicating “none”, which JS will interpret as the None branch of this option. Read more
This method tests for self and other values to be equal, and is used by ==. Read more
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more
The wasm ABI type references to Self are recovered from.
The type that holds the reference to Self for the duration of the invocation of the function that has an &Self parameter. This is required to ensure that the lifetimes don’t persist beyond one function call, and so that they remain anonymous. Read more
Recover a Self::Anchor from Self::Abi. Read more

Auto Trait Implementations§

Blanket Implementations§

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Same as IntoWasmAbi::Abi
Same as IntoWasmAbi::into_abi, except that it may throw and never return in the case of Err. Read more
The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.