OffscreenCanvasRenderingContext2D class

Implemented types

• CanvasState
• CanvasTransform
• CanvasCompositing
• CanvasImageSmoothing
• CanvasFillStrokeStyles
• CanvasShadowStyles
• CanvasFilters
• CanvasRect
• CanvasDrawPath
• CanvasText
• CanvasDrawImage
• CanvasImageData
• CanvasPathDrawingStyles
• CanvasTextDrawingStyles
• CanvasPath

Available extensions

• PropsCanvasCompositing
• PropsCanvasDrawImage
• PropsCanvasDrawPath
• PropsCanvasFillStrokeStyles
• PropsCanvasFilters
• PropsCanvasImageData
• PropsCanvasImageSmoothing
• PropsCanvasPath
• PropsCanvasPathDrawingStyles
• PropsCanvasRect
• PropsCanvasShadowStyles
• PropsCanvasState
• PropsCanvasText
• PropsCanvasTextDrawingStyles
• PropsCanvasTransform
• PropsOffscreenCanvasRenderingContext2D

Annotations

• @JS()
• @staticInterop

Constructors

OffscreenCanvasRenderingContext2D()

factory

Properties

canvas → OffscreenCanvas

Available on OffscreenCanvasRenderingContext2D, provided by the PropsOffscreenCanvasRenderingContext2D extension

no setter

direction ↔ CanvasDirection

Available on CanvasTextDrawingStyles, provided by the PropsCanvasTextDrawingStyles extension

getter/setter pair

fillStyle ↔ dynamic

Available on CanvasFillStrokeStyles, provided by the PropsCanvasFillStrokeStyles extension

getter/setter pair

filter ↔ String

Available on CanvasFilters, provided by the PropsCanvasFilters extension

getter/setter pair

font ↔ String

Available on CanvasTextDrawingStyles, provided by the PropsCanvasTextDrawingStyles extension

getter/setter pair

fontKerning ↔ CanvasFontKerning

Available on CanvasTextDrawingStyles, provided by the PropsCanvasTextDrawingStyles extension

getter/setter pair

fontStretch ↔ CanvasFontStretch

Available on CanvasTextDrawingStyles, provided by the PropsCanvasTextDrawingStyles extension

getter/setter pair

fontVariantCaps ↔ CanvasFontVariantCaps

Available on CanvasTextDrawingStyles, provided by the PropsCanvasTextDrawingStyles extension

getter/setter pair

globalAlpha ↔ dynamic

Available on CanvasCompositing, provided by the PropsCanvasCompositing extension

getter/setter pair

globalCompositeOperation ↔ String

Available on CanvasCompositing, provided by the PropsCanvasCompositing extension

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

imageSmoothingEnabled ↔ bool

Available on CanvasImageSmoothing, provided by the PropsCanvasImageSmoothing extension

getter/setter pair

imageSmoothingQuality ↔ ImageSmoothingQuality

Available on CanvasImageSmoothing, provided by the PropsCanvasImageSmoothing extension

getter/setter pair

letterSpacing ↔ String

Available on CanvasTextDrawingStyles, provided by the PropsCanvasTextDrawingStyles extension

getter/setter pair

lineCap ↔ CanvasLineCap

Available on CanvasPathDrawingStyles, provided by the PropsCanvasPathDrawingStyles extension

getter/setter pair

lineDashOffset ↔ dynamic

Available on CanvasPathDrawingStyles, provided by the PropsCanvasPathDrawingStyles extension

getter/setter pair

lineJoin ↔ CanvasLineJoin

Available on CanvasPathDrawingStyles, provided by the PropsCanvasPathDrawingStyles extension

getter/setter pair

lineWidth ↔ dynamic

Available on CanvasPathDrawingStyles, provided by the PropsCanvasPathDrawingStyles extension

getter/setter pair

miterLimit ↔ dynamic

Available on CanvasPathDrawingStyles, provided by the PropsCanvasPathDrawingStyles extension

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

shadowBlur ↔ dynamic

Available on CanvasShadowStyles, provided by the PropsCanvasShadowStyles extension

getter/setter pair

shadowColor ↔ String

Available on CanvasShadowStyles, provided by the PropsCanvasShadowStyles extension

getter/setter pair

shadowOffsetX ↔ dynamic

Available on CanvasShadowStyles, provided by the PropsCanvasShadowStyles extension

getter/setter pair

shadowOffsetY ↔ dynamic

Available on CanvasShadowStyles, provided by the PropsCanvasShadowStyles extension

getter/setter pair

strokeStyle ↔ dynamic

Available on CanvasFillStrokeStyles, provided by the PropsCanvasFillStrokeStyles extension

getter/setter pair

textAlign ↔ CanvasTextAlign

Available on CanvasTextDrawingStyles, provided by the PropsCanvasTextDrawingStyles extension

getter/setter pair

textBaseline ↔ CanvasTextBaseline

Available on CanvasTextDrawingStyles, provided by the PropsCanvasTextDrawingStyles extension

getter/setter pair

textRendering ↔ CanvasTextRendering

Available on CanvasTextDrawingStyles, provided by the PropsCanvasTextDrawingStyles extension

getter/setter pair

wordSpacing ↔ String

Available on CanvasTextDrawingStyles, provided by the PropsCanvasTextDrawingStyles extension

getter/setter pair

Methods

arc(dynamic x, dynamic y, dynamic radius, dynamic startAngle, dynamic endAngle, [bool? counterclockwise = false]) → void

Available on CanvasPath, provided by the PropsCanvasPath extension

arcTo(dynamic x1, dynamic y1, dynamic x2, dynamic y2, dynamic radius) → void

Available on CanvasPath, provided by the PropsCanvasPath extension

beginPath() → void

Available on CanvasDrawPath, provided by the PropsCanvasDrawPath extension

bezierCurveTo(dynamic cp1x, dynamic cp1y, dynamic cp2x, dynamic cp2y, dynamic x, dynamic y) → void

Available on CanvasPath, provided by the PropsCanvasPath extension

clearRect(dynamic x, dynamic y, dynamic w, dynamic h) → void

Available on CanvasRect, provided by the PropsCanvasRect extension

clip([Path2D? path, CanvasFillRule? fillRule = CanvasFillRule.nonzero]) → void

Available on CanvasDrawPath, provided by the PropsCanvasDrawPath extension

closePath() → void

Available on CanvasPath, provided by the PropsCanvasPath extension

commit() → void

Available on OffscreenCanvasRenderingContext2D, provided by the PropsOffscreenCanvasRenderingContext2D extension

createConicGradient(double startAngle, double x, double y) → CanvasGradient

Available on CanvasFillStrokeStyles, provided by the PropsCanvasFillStrokeStyles extension

createImageData([int? sw, int? sh, ImageDataSettings? settings]) → ImageData

Available on CanvasImageData, provided by the PropsCanvasImageData extension

createLinearGradient(double x0, double y0, double x1, double y1) → CanvasGradient

Available on CanvasFillStrokeStyles, provided by the PropsCanvasFillStrokeStyles extension

createPattern(dynamic image, String repetition) → CanvasPattern?

Available on CanvasFillStrokeStyles, provided by the PropsCanvasFillStrokeStyles extension

createRadialGradient(double x0, double y0, double r0, double x1, double y1, double r1) → CanvasGradient

Available on CanvasFillStrokeStyles, provided by the PropsCanvasFillStrokeStyles extension

drawImage(dynamic image, dynamic sx, [dynamic sy, dynamic sw, dynamic sh, dynamic dx, dynamic dy, dynamic dw, dynamic dh]) → void

Available on CanvasDrawImage, provided by the PropsCanvasDrawImage extension

ellipse(dynamic x, dynamic y, dynamic radiusX, dynamic radiusY, dynamic rotation, dynamic startAngle, dynamic endAngle, [bool? counterclockwise = false]) → void

Available on CanvasPath, provided by the PropsCanvasPath extension

fill([Path2D? path, CanvasFillRule? fillRule = CanvasFillRule.nonzero]) → void

Available on CanvasDrawPath, provided by the PropsCanvasDrawPath extension

fillRect(dynamic x, dynamic y, dynamic w, dynamic h) → void

Available on CanvasRect, provided by the PropsCanvasRect extension

fillText(String text, dynamic x, dynamic y, [dynamic maxWidth]) → void

Available on CanvasText, provided by the PropsCanvasText extension

getImageData(int sx, int sy, int sw, int sh, [ImageDataSettings? settings]) → ImageData

Available on CanvasImageData, provided by the PropsCanvasImageData extension

getLineDash() → Iterable

Available on CanvasPathDrawingStyles, provided by the PropsCanvasPathDrawingStyles extension

getTransform() → DOMMatrix

Available on CanvasTransform, provided by the PropsCanvasTransform extension

isContextLost() → bool

Available on CanvasState, provided by the PropsCanvasState extension

isPointInPath(Path2D path, dynamic x, [dynamic y, CanvasFillRule? fillRule = CanvasFillRule.nonzero]) → bool

Available on CanvasDrawPath, provided by the PropsCanvasDrawPath extension

isPointInStroke(Path2D path, [dynamic x, dynamic y]) → bool

Available on CanvasDrawPath, provided by the PropsCanvasDrawPath extension

lineTo(dynamic x, dynamic y) → void

Available on CanvasPath, provided by the PropsCanvasPath extension

measureText(String text) → TextMetrics

Available on CanvasText, provided by the PropsCanvasText extension

moveTo(dynamic x, dynamic y) → void

Available on CanvasPath, provided by the PropsCanvasPath extension

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

putImageData(ImageData imagedata, int dx, [int? dy, int? dirtyX, int? dirtyY, int? dirtyWidth, int? dirtyHeight]) → void

Available on CanvasImageData, provided by the PropsCanvasImageData extension

quadraticCurveTo(dynamic cpx, dynamic cpy, dynamic x, dynamic y) → void

Available on CanvasPath, provided by the PropsCanvasPath extension

rect(dynamic x, dynamic y, dynamic w, dynamic h) → void

Available on CanvasPath, provided by the PropsCanvasPath extension

reset() → void

Available on CanvasState, provided by the PropsCanvasState extension

resetTransform() → void

Available on CanvasTransform, provided by the PropsCanvasTransform extension

restore() → void

Available on CanvasState, provided by the PropsCanvasState extension

rotate(dynamic angle) → void

Available on CanvasTransform, provided by the PropsCanvasTransform extension

roundRect(dynamic x, dynamic y, dynamic w, dynamic h, [dynamic radii = 0]) → void

Available on CanvasPath, provided by the PropsCanvasPath extension

save() → void

Available on CanvasState, provided by the PropsCanvasState extension

scale(dynamic x, dynamic y) → void

Available on CanvasTransform, provided by the PropsCanvasTransform extension

setLineDash(Iterable segments) → void

Available on CanvasPathDrawingStyles, provided by the PropsCanvasPathDrawingStyles extension

setTransform([dynamic a, dynamic b, dynamic c, dynamic d, dynamic e, dynamic f]) → void

Available on CanvasTransform, provided by the PropsCanvasTransform extension

stroke([Path2D? path]) → void

Available on CanvasDrawPath, provided by the PropsCanvasDrawPath extension

strokeRect(dynamic x, dynamic y, dynamic w, dynamic h) → void

Available on CanvasRect, provided by the PropsCanvasRect extension

strokeText(String text, dynamic x, dynamic y, [dynamic maxWidth]) → void

Available on CanvasText, provided by the PropsCanvasText extension

toString() → String

A string representation of this object.

inherited

transform(dynamic a, dynamic b, dynamic c, dynamic d, dynamic e, dynamic f) → void

Available on CanvasTransform, provided by the PropsCanvasTransform extension

translate(dynamic x, dynamic y) → void

Available on CanvasTransform, provided by the PropsCanvasTransform extension

Operators

operator ==(Object other) → bool

The equality operator.

inherited