Class default

Hierarchy

Backend
- default

Index

Constructors

constructor

Properties

Methods

Constructors

constructor

new default(): default

Overrides Backend.constructor
- Defined in display/canvas.ts:7
Returns default

Properties

_ctx

_ctx: CanvasRenderingContext2D

_options

_options: DisplayOptions

Methods

Abstract _normalizedEventToPosition

_normalizedEventToPosition(x: number, y: number): [number, number]

- Defined in display/canvas.ts:50
Parameters
- x: number
- y: number
Returns [number, number]

Abstract _updateSize

_updateSize(): void

- Defined in display/canvas.ts:51
Returns void

clear

clear(): void

Overrides Backend.clear
- Defined in display/canvas.ts:28
Returns void

Abstract computeFontSize

computeFontSize(availWidth: number, availHeight: number): number

Inherited from Backend.computeFontSize
- Defined in display/backend.ts:17
Parameters
- availWidth: number
- availHeight: number
Returns number

Abstract computeSize

computeSize(availWidth: number, availHeight: number): [number, number]

Inherited from Backend.computeSize
- Defined in display/backend.ts:16
Parameters
- availWidth: number
- availHeight: number
Returns [number, number]

Abstract draw

draw(data: DisplayData, clearBefore: boolean): void

Inherited from Backend.draw
- Defined in display/backend.ts:15
Parameters
- data: DisplayData
- clearBefore: boolean
Returns void

eventToPosition

eventToPosition(x: number, y: number): [number, number]

Overrides Backend.eventToPosition
- Defined in display/canvas.ts:36
Parameters
- x: number
- y: number
Returns [number, number]

getContainer

getContainer(): HTMLCanvasElement

Overrides Backend.getContainer
- Defined in display/canvas.ts:13
Returns HTMLCanvasElement

schedule

schedule(cb: () => void): void

Overrides Backend.schedule
- Defined in display/canvas.ts:12
Parameters
- cb: () => void
  - - (): void
    - Returns void
Returns void

setOptions

setOptions(opts: DisplayOptions): void

Overrides Backend.setOptions
- Defined in display/canvas.ts:15
Parameters
- opts: DisplayOptions
Returns void

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