CanvasRenderingContext2D class Null safety

Implemented types
Annotations
  • @Native("CanvasRenderingContext2D")

Properties

backingStorePixelRatio double
Deprecated always returns 1.0
read-only
canvas CanvasElement
read-only, override
currentTransform ↔ dynamic
read / write
direction String?
read / write
fillStyle Object?
@Creates('String|CanvasGradient|CanvasPattern'), @Returns('String|CanvasGradient|CanvasPattern'), read / write
filter String?
read / write
font String
read / write
globalAlpha num
read / write
globalCompositeOperation String
read / write
hashCode int
The hash code for this object. [...]
read-only, inherited
imageSmoothingEnabled bool?
Whether images and patterns on this canvas will be smoothed when this canvas is scaled. [...]
read / write
imageSmoothingQuality String?
read / write
lineCap String
read / write
lineDashOffset num
@SupportedBrowser(SupportedBrowser.CHROME), @SupportedBrowser(SupportedBrowser.IE, '11'), @SupportedBrowser(SupportedBrowser.SAFARI), @Unstable(), read / write
lineJoin String
read / write
lineWidth num
read / write
miterLimit num
read / write
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
shadowBlur num
read / write
shadowColor String
read / write
shadowOffsetX num
read / write
shadowOffsetY num
read / write
strokeStyle Object?
@Creates('String|CanvasGradient|CanvasPattern'), @Returns('String|CanvasGradient|CanvasPattern'), read / write
textAlign String
read / write
textBaseline String
read / write

Methods

addHitRegion([Map? options]) → void
arc(num x, num y, num radius, num startAngle, num endAngle, [bool anticlockwise = false]) → void
arcTo(num x1, num y1, num x2, num y2, num radius) → void
beginPath() → void
bezierCurveTo(num cp1x, num cp1y, num cp2x, num cp2y, num x, num y) → void
clearHitRegions() → void
clearRect(num x, num y, num width, num height) → void
clip([dynamic path_OR_winding, String? winding]) → void
closePath() → void
createImageData(dynamic data_OR_imagedata_OR_sw, [int? sh_OR_sw, dynamic imageDataColorSettings_OR_sh, Map? imageDataColorSettings]) ImageData
@Creates('ImageData|=Object')
createImageDataFromImageData(ImageData imagedata) ImageData
createLinearGradient(num x0, num y0, num x1, num y1) CanvasGradient
createPattern(Object image, String repetitionType) CanvasPattern?
createPatternFromImage(ImageElement image, String repetitionType) CanvasPattern
createRadialGradient(num x0, num y0, num r0, num x1, num y1, num r1) CanvasGradient
drawFocusIfNeeded(dynamic element_OR_path, [Element? element]) → void
drawImage(CanvasImageSource source, num destX, num destY) → void
Draws an image from a CanvasImageSource to this canvas. [...]
@JSName('drawImage')
drawImageScaled(CanvasImageSource source, num destX, num destY, num destWidth, num destHeight) → void
Draws an image from a CanvasImageSource to an area of this canvas. [...]
@JSName('drawImage')
drawImageScaledFromSource(CanvasImageSource source, num sourceX, num sourceY, num sourceWidth, num sourceHeight, num destX, num destY, num destWidth, num destHeight) → void
Draws an image from a CanvasImageSource to an area of this canvas. [...]
@JSName('drawImage')
drawImageToRect(CanvasImageSource source, Rectangle<num> destRect, {Rectangle<num>? sourceRect}) → void
Draws an image from a CanvasImageSource to an area of this canvas. [...]
ellipse(num x, num y, num radiusX, num radiusY, num rotation, num startAngle, num endAngle, bool? anticlockwise) → void
fill([dynamic path_OR_winding, String? winding]) → void
fillRect(num x, num y, num width, num height) → void
fillText(String text, num x, num y, [num? maxWidth]) → void
Draws text to the canvas. [...]
getContextAttributes() Map
getImageData(int sx, int sy, int sw, int sh) ImageData
@Creates('ImageData|=Object')
getLineDash() List<num>
@SupportedBrowser(SupportedBrowser.CHROME), @SupportedBrowser(SupportedBrowser.IE, '11'), @SupportedBrowser(SupportedBrowser.SAFARI), @Unstable()
isContextLost() bool
isPointInPath(dynamic path_OR_x, num x_OR_y, [dynamic winding_OR_y, String? winding]) bool
isPointInStroke(dynamic path_OR_x, num x_OR_y, [num? y]) bool
lineTo(num x, num y) → void
measureText(String text) TextMetrics
moveTo(num x, num y) → void
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
putImageData(ImageData imagedata, int dx, int dy, [int? dirtyX, int? dirtyY, int? dirtyWidth, int? dirtyHeight]) → void
quadraticCurveTo(num cpx, num cpy, num x, num y) → void
rect(num x, num y, num width, num height) → void
removeHitRegion(String id) → void
resetTransform() → void
restore() → void
rotate(num angle) → void
save() → void
scale(num x, num y) → void
scrollPathIntoView([Path2D? path]) → void
setFillColorHsl(int h, num s, num l, [num a = 1]) → void
Sets the color used inside shapes. h is in degrees, 0-360. s, l are in percent, 0-100. a is 0-1.
setFillColorRgb(int r, int g, int b, [num a = 1]) → void
Sets the color used inside shapes. r, g, b are 0-255, a is 0-1.
setLineDash(List<num> dash) → void
@SupportedBrowser(SupportedBrowser.CHROME), @SupportedBrowser(SupportedBrowser.IE, '11'), @SupportedBrowser(SupportedBrowser.SAFARI), @Unstable()
setStrokeColorHsl(int h, num s, num l, [num a = 1]) → void
Sets the color used for stroking shapes. h is in degrees, 0-360. s, l are in percent, 0-100. a is 0-1.
setStrokeColorRgb(int r, int g, int b, [num a = 1]) → void
Sets the color used for stroking shapes. r, g, b are 0-255, a is 0-1.
setTransform(num a, num b, num c, num d, num e, num f) → void
stroke([Path2D? path]) → void
strokeRect(num x, num y, num width, num height) → void
strokeText(String text, num x, num y, [num? maxWidth]) → void
toString() String
Returns a string representation of this object.
inherited
transform(num a, num b, num c, num d, num e, num f) → void
translate(num x, num y) → void

Operators

operator ==(Object other) bool
The equality operator. [...]
inherited