HistoricalChange

Class
Common
class HistoricalChange(
    val uptimeMillis: Long,
    val position: Offset,
    val scaleFactor: Float = 1f,
    val panOffset: Offset = Offset.Zero,
)

Data structure for "historical" pointer moves.

Optional high-frequency pointer moves in between the last two dispatched events: can be used for extra accuracy when input rate exceeds framerate.

Parameters
uptimeMillis The time of the historical pointer event, in milliseconds. In between the current and previous pointer event times.
position The Offset of the historical pointer event, relative to the containing element.
scaleFactor A multiplicative scale factor indicating the amount of scale to perform as part of this pointer input change. A value of 1f indicates no scale, a value less than 1f indicates a scale down, commonly causing a zoom out, and a value greater than 1f indicates a scale up, commonly causing a zoom in.
panOffset An Offset in pixel coordinates indicating an amount of scrolling.

Secondary Constructors

public constructor(
    uptimeMillis: Long,
    position: Offset,
) : this(
    uptimeMillis = uptimeMillis,
    position = position,
    scaleFactor = 1f,
    panOffset = Offset.Zero,
)
internal constructor(
    uptimeMillis: Long,
    position: Offset,
    scaleFactor: Float,
    panOffset: Offset,
    originalEventPosition: Offset,
) : this(uptimeMillis, position, scaleFactor, panOffset) {
    this.originalEventPosition = originalEventPosition
}