Everysight SDK/UIKit.widgets/Image

Image

open class Image : UIResourceElement

An image ui element to upload & display images on the glasses screen

Each image is defined by an image slot which you can upload PNG/JPG images

Max size 16KB compressed.
Max pixels: 640x400
PNG images must be encoded with sliding window size of 2^15bytes or less (see PNG zlib encoding).
JPEG compression: baseline only (progressive compression is not supported)
Both grayscale, transparency and color supported as long as they fit into memory limit
All slots except Slot0 are persistent, meaning uploaded images for those slots are kept saved on the glasses between reboots

NOTE: The behaviour of adding 2 (or more) different images with the same slot to the same screen is undefined

Supported transformations: Translate

See also

Constructors

constructor()

constructor(id: String)

constructor(image: ImgSrc)

Constructor, defining an image for the Image

constructor(id: String, image: ImgSrc)

Constructor, defining an image and id for the Image

Functions

protected open override fun drawBorder(canvas: CanvasBuffer, color: Int, widthPix: Int, cornerRadiusPix: Float)

Override this function to enable custom border drawing when showBorder is true

fun getResource(): ImgSrc?

Get the ImgSrc

open override fun getUIResource(): ImgSrc?

Returns the resource of the UI element if exists

open override fun isDirty(): Boolean

Return true if the ui element was changed from the last draw

protected open override fun onDraw(canvas: CanvasBuffer)

The draw method is called to actually draw the ui element visual representation to the CanvasBuffer

open override fun rotate(angleDegrees: Float): UIElement

open override fun rotate(angleDegrees: Float, centerX: Float, centerY: Float, pivot: Pivot): UIElement

not supported for image

open override fun scale(sx: Float, sy: Float): UIElement

open override fun scale(sx: Float, sy: Float, px: Float, py: Float, pivot: Pivot): UIElement

not supported for image

fun setResource(image: ImgSrc): Image

Set the image information

open override fun toString(): String

To String