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 ↔ Matrix?
-
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.SAFARI), @SupportedBrowser(SupportedBrowser.IE, '11'), @Unstable(), @SupportedBrowser(SupportedBrowser.CHROME), @SupportedBrowser(SupportedBrowser.SAFARI), @SupportedBrowser(SupportedBrowser.IE, '11'), @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.SAFARI), @SupportedBrowser(SupportedBrowser.IE, '11'), @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.SAFARI), @SupportedBrowser(SupportedBrowser.IE, '11'), @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 -
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