Class MeasurementUtils

Utility class for measuring text size using cached labels and font management.

Index

Constructors

Properties

fontManager holder labelCache styleRegistry

Methods

getFontWithKey getTextSize

Constructors

constructor

new MeasurementUtils(): MeasurementUtils.MeasurementUtils
Constructs a new MeasurementUtils instance. Initializes the label cache and creates an off-screen holder group.

Returns MeasurementUtils.MeasurementUtils
- Defined in hosanna-ui/src/hosanna-ui/lib/MeasurementUtils.ts:63

Properties

`Private`fontManager

fontManager: IFontManager

Font manager for retrieving fonts.

holder

holder: ISGNGroup

Holder group for off-screen label measurement.

`Private`labelCache

labelCache: Record<string, ISGNLabel>

Cache of label instances, keyed by font or style key.

`Private`styleRegistry

styleRegistry: IStyleRegistry

Style registry for resolving font styles.

Methods

`Private`getFontWithKey

getFontWithKey(key: string): undefined | ISGNFont
Retrieves a font object using the specified key.
Parameters
- key: string
  The font key to look up.
Returns undefined | ISGNFont
The font object if found, otherwise undefined.
- Defined in hosanna-ui/src/hosanna-ui/lib/MeasurementUtils.ts:140

getTextSize

getTextSize(params: TextSizeParams): TextSize
Measures the size of the given text using the specified parameters. Uses cached labels and resolves fonts/styles as needed.
Parameters
- params: TextSizeParams
  The parameters for text measurement.
Returns TextSize
The measured width and height of the text.
- Defined in hosanna-ui/src/hosanna-ui/lib/MeasurementUtils.ts:79