Class Canvas

Hierarchy (View Summary)

Constructors

constructor

Methods

clear clipOutPath clipOutRect clipPath clipRect concat drawArc drawARGB drawBitmap drawCircle drawColor drawLine drawLines drawOval drawPaint drawPath drawPoint drawPoints drawPosText drawRect drawRGB drawRoundRect drawText drawTextOnPath drawTextRun drawView getClipBounds getDensity getDrawFilter getHeight getImage getNative getWidth release restore restoreToCount rotate save scale setBitmap setContext setDensity setDrawFilter setMatrix setNative skew translate

Constructors

constructor

  • new Canvas(imageOrWidth?: any, height?: number): Canvas

  • Parameters

    • OptionalimageOrWidth: any
    • Optionalheight: number

    Returns Canvas

Methods

clear

  • clear(): any

  • Returns any

clipOutPath

  • clipOutPath(path: Path): boolean

  • Parameters

    Returns boolean

clipOutRect

  • clipOutRect(left: number, top: number, right: number, bottom: number): boolean

  • Parameters

    • left: number
    • top: number
    • right: number
    • bottom: number

    Returns boolean

  • clipOutRect(rect: Rect): boolean

  • Parameters

    Returns boolean

clipPath

  • clipPath(path: Path): boolean

  • Parameters

    Returns boolean

  • clipPath(path: Path, op: Op): boolean

  • Parameters

    Returns boolean

clipRect

  • clipRect(rect: Rect): boolean

  • Parameters

    Returns boolean

  • clipRect(left: number, top: number, right: number, bottom: number): boolean

  • Parameters

    • left: number
    • top: number
    • right: number
    • bottom: number

    Returns boolean

  • clipRect(
        left: number,
        top: number,
        right: number,
        bottom: number,
        op: Op,
    ): boolean

  • Parameters

    • left: number
    • top: number
    • right: number
    • bottom: number
    • op: Op

    Returns boolean

  • clipRect(rect: Rect, op: Op): boolean

  • Parameters

    Returns boolean

concat

  • concat(mat: Matrix): any

  • Parameters

    Returns any

drawArc

  • drawArc(
        rect: Rect,
        startAngle: number,
        sweepAngle: number,
        useCenter: boolean,
        paint: Paint,
    ): void

  • Parameters

    • rect: Rect
    • startAngle: number
    • sweepAngle: number
    • useCenter: boolean
    • paint: Paint

    Returns void

  • drawArc(
        left: number,
        top: number,
        right: number,
        bottom: number,
        startAngle: number,
        sweepAngle: number,
        useCenter: boolean,
        paint: Paint,
    ): void

  • Parameters

    • left: number
    • top: number
    • right: number
    • bottom: number
    • startAngle: number
    • sweepAngle: number
    • useCenter: boolean
    • paint: Paint

    Returns void

drawARGB

  • drawARGB(a: number, r: number, g: number, b: number): void

  • Parameters

    • a: number
    • r: number
    • g: number
    • b: number

    Returns void

drawBitmap

  • drawBitmap(bitmap: any, src: Rect, dest: Rect, paint: Paint): void

  • Parameters

    Returns void

  • drawBitmap(bitmap: any, x: number, y: number, paint: Paint): void

  • Parameters

    • bitmap: any
    • x: number
    • y: number
    • paint: Paint

    Returns void

  • drawBitmap(bitmap: any, matrix: Matrix, paint: Paint): any

  • Parameters

    Returns any

drawCircle

  • drawCircle(cx: number, cy: number, radius: number, paint: Paint): void

  • Parameters

    • cx: number
    • cy: number
    • radius: number
    • paint: Paint

    Returns void

drawColor

  • drawColor(color: any): void

  • Parameters

    • color: any

    Returns void

drawLine

  • drawLine(
        startX: number,
        startY: number,
        stopX: number,
        stopY: number,
        paint: Paint,
    ): void

  • Parameters

    • startX: number
    • startY: number
    • stopX: number
    • stopY: number
    • paint: Paint

    Returns void

drawLines

  • drawLines(
        pts: number[],
        offset: number,
        count: number,
        paint: Paint,
        mat?: Matrix,
    ): void

  • Parameters

    • pts: number[]
    • offset: number
    • count: number
    • paint: Paint
    • Optionalmat: Matrix

    Returns void

  • drawLines(pts: number[], paint: Paint, mat?: Matrix): void

  • Parameters

    Returns void

drawOval

  • drawOval(rect: Rect, paint: Paint): void

  • Parameters

    Returns void

  • drawOval(
        left: number,
        top: number,
        right: number,
        bottom: number,
        paint: Paint,
    ): void

  • Parameters

    • left: number
    • top: number
    • right: number
    • bottom: number
    • paint: Paint

    Returns void

drawPaint

  • drawPaint(apint: Paint): void

  • Parameters

    Returns void

drawPath

  • drawPath(path: Path, paint: Paint): void

  • Parameters

    Returns void

drawPoint

  • drawPoint(x: number, y: number, paint: Paint): void

  • Parameters

    • x: number
    • y: number
    • paint: Paint

    Returns void

drawPoints

  • drawPoints(pts: number[], paint: Paint): void

  • Parameters

    • pts: number[]
    • paint: Paint

    Returns void

drawPosText

  • drawPosText(text: string, pos: number[], paint: Paint): void

  • Parameters

    • text: string
    • pos: number[]
    • paint: Paint

    Returns void

  • drawPosText(
        text: string[],
        index: number,
        count: number,
        pos: number[],
        paint: Paint,
    ): void

  • Parameters

    • text: string[]
    • index: number
    • count: number
    • pos: number[]
    • paint: Paint

    Returns void

drawRect

  • drawRect(
        left: number,
        top: number,
        right: number,
        bottom: number,
        paint: Paint,
    ): void

  • Parameters

    • left: number
    • top: number
    • right: number
    • bottom: number
    • paint: Paint

    Returns void

  • drawRect(rect: Rect, paint: Paint): void

  • Parameters

    Returns void

drawRGB

  • drawRGB(r: number, g: number, b: number): void

  • Parameters

    • r: number
    • g: number
    • b: number

    Returns void

drawRoundRect

  • drawRoundRect(
        left: number,
        top: number,
        right: number,
        bottom: number,
        rx: number,
        ry: number,
        paint: Paint,
    ): void

  • Parameters

    • left: number
    • top: number
    • right: number
    • bottom: number
    • rx: number
    • ry: number
    • paint: Paint

    Returns void

  • drawRoundRect(rect: Rect, rx: number, ry: number, paint: Paint): void

  • Parameters

    Returns void

drawText

  • drawText(
        text: string,
        start: number,
        end: number,
        x: number,
        y: number,
        paint: Paint,
    ): void

  • Parameters

    • text: string
    • start: number
    • end: number
    • x: number
    • y: number
    • paint: Paint

    Returns void

  • drawText(
        char: any[],
        index: number,
        count: number,
        x: number,
        y: number,
        paint: Paint,
    ): void

  • Parameters

    • char: any[]
    • index: number
    • count: number
    • x: number
    • y: number
    • paint: Paint

    Returns void

  • drawText(text: string, x: number, y: number, paint: Paint): void

  • Parameters

    • text: string
    • x: number
    • y: number
    • paint: Paint

    Returns void

drawTextOnPath

  • drawTextOnPath(
        text: string,
        path: Path,
        hOffset: number,
        vOffset: number,
        paint: Paint,
    ): void

  • Parameters

    • text: string
    • path: Path
    • hOffset: number
    • vOffset: number
    • paint: Paint

    Returns void

drawTextRun

  • drawTextRun(
        text: string,
        start: number,
        end: number,
        contextStart: number,
        contextEnd: number,
        x: number,
        y: number,
        isRtl: boolean,
        paint: Paint,
    ): void

  • Parameters

    • text: string
    • start: number
    • end: number
    • contextStart: number
    • contextEnd: number
    • x: number
    • y: number
    • isRtl: boolean
    • paint: Paint

    Returns void

drawView

  • drawView(view: View, rect?: Rect): any

  • Parameters

    • view: View
    • Optionalrect: Rect

    Returns any

getClipBounds

  • getClipBounds(): Rect

  • Returns Rect

getDensity

  • getDensity(): number

  • Returns number

getDrawFilter

getHeight

  • getHeight(): number

  • Returns number

getImage

  • getImage(): any

  • Returns any

getNative

  • getNative(): any

  • Returns any

getWidth

  • getWidth(): number

  • Returns number

release

  • release(): any

  • Returns any

restore

  • restore(): void

  • Returns void

restoreToCount

  • restoreToCount(count: number): void

  • Parameters

    • count: number

    Returns void

rotate

  • rotate(degrees: number): void

  • Parameters

    • degrees: number

    Returns void

  • rotate(degrees: number, px: number, py: number): void

  • Parameters

    • degrees: number
    • px: number
    • py: number

    Returns void

save

  • save(): number

  • Returns number

scale

  • scale(sx: number, sy: number, px: number, py: number): void

  • Parameters

    • sx: number
    • sy: number
    • px: number
    • py: number

    Returns void

  • scale(sx: number, sy: number): void

  • Parameters

    • sx: number
    • sy: number

    Returns void

setBitmap

  • setBitmap(image: any): any

  • Parameters

    • image: any

    Returns any

setContext

  • setContext(context: any, width: any, height: any): any

  • Parameters

    • context: any
    • width: any
    • height: any

    Returns any

setDensity

  • setDensity(density: number): void

  • Parameters

    • density: number

    Returns void

setDrawFilter

  • setDrawFilter(filter: DrawFilter): void

  • Parameters

    Returns void

setMatrix

  • setMatrix(matrix: Matrix): void

  • Parameters

    Returns void

setNative

  • setNative(object: any): any

  • Parameters

    • object: any

    Returns any

skew

  • skew(sx: number, sy: number): void

  • Parameters

    • sx: number
    • sy: number

    Returns void

translate

  • translate(dx: number, dy: number): void

  • Parameters

    • dx: number
    • dy: number

    Returns void

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